Table Of Contents
Release Notes for Cisco uBR7200 Series for Cisco IOS Release 12.3BC
Cisco uBR7200 Series Universal Broadband Routers
Cisco uBR7246VXR Universal Broadband Router
Cisco uBR7246 Universal Broadband Router
Cisco uBR7223 Universal Broadband Router
Cisco uBR7200 Series Universal Broadband Router Overview
DOCSIS System Interoperability on the Cisco uBR7246VXR CMTS
DOCSIS 1.0 and 1.0+ Extensions
Additional Cable Modem Interoperability
Determining Your Software Release
Upgrading to a New Software Release
NewHardware Features in Cisco IOS Release 12.3(23)BC7
NewSoftware Features in Cisco IOS Release 12.3(23)BC7
New Hardware Features in Cisco IOS Release 12.3(23)BC6
New Software Features in Cisco IOS Release 12.3(23)BC6
New Hardware Features in Cisco IOS Release 12.3(23)BC5
New Software Features in Cisco IOS Release 12.3(23)BC5
New Hardware Features in Cisco IOS Release 12.3(23)BC4
New Software Features in Cisco IOS Release 12.3(23)BC4
New Hardware Features in Cisco IOS Release 12.3(21a)BC8
New Software Features in Cisco IOS Release 12.3(21a)BC8
New Hardware Featues in Cisco IOS Release 12.3(23)BC3
New Software Features in Cisco IOS Release 12.3(23)BC3
New Hardware Features in Cisco IOS Release 12.3(23)BC2
New Software Features in Cisco IOS Release 12.3(23)BC2
Subscriber Traffic Management Version 1.2
Upstream Utilization Optimization
New Hardware Features in Cisco IOS Release 12.3(21a)BC7
New Software Features in Cisco IOS Release 12.3(21a)BC7
New Hardware Features in Cisco IOS Release 12.3(23)BC1
New Software Features in Cisco IOS Release 12.3(23)BC1
PacketCable Subscriber ID Support
New Hardware Features in Cisco IOS Release 12.3(21a)BC6
New Software Features in Cisco IOS Release 12.3(21a)BC6
New Hardware Features in Cisco IOS Release 12.3(21a)BC5
New Software Features in Cisco IOS Release 12.3(21a)BC5
New Hardware Features in Cisco IOS Release 12.3(23)BC
DOCSIS Timing & Control Card (DTCC)
New Software Features in Cisco IOS Release 12.3(23)BC
New Hardware Features in Cisco IOS Release 12.3(21a)BC4
New Software Features in Cisco IOS Release 12.3(21a)BC3
New Hardware Features in Cisco IOS Release 12.3(21a)BC3
New Software Features in Cisco IOS Release 12.3(21a)BC3
New Hardware Features in Cisco IOS Release 12.3(21a)BC2
New Software Features in Cisco IOS Release 12.3(21a)BC2
New Hardware Features in Cisco IOS Release 12.3(21a)BC1
New Software Features in Cisco IOS Release 12.3(21a)BC1
New Hardware Features in Cisco IOS Release 12.3(21)BC
New Software Features in Cisco IOS Release 12.3(21)BC
Automatic Virtual Interface Bundles
Cable Duplicate MAC Address Reject
PacketCable Client Accept Timeout
Per Downstream Static Multicast
SAMIS Source Address Management
Service Flow Admission Control
New Hardware Features in Cisco IOS Release 12.3(17b)BC9
New Software Features in Cisco IOS Release 12.3(17b)BC9
New Hardware Features in Cisco IOS Release 12.3(17b)BC8
New Software Features in Cisco IOS Release 12.3(17b)BC8
New Hardware Features in Cisco IOS Release 12.3(17b)BC7
New Software Features in Cisco IOS Release 12.3(17b)BC7
New Hardware Features in Cisco IOS Release 12.3(17b)BC6
New Software Features in Cisco IOS Release 12.3(17b)BC6
New Hardware Features in Cisco IOS Release 12.3(17b)BC5
New Software Features in Cisco IOS Release 12.3(17b)BC5
New Hardware Features in Cisco IOS Release 12.3(17b)BC4
New Software Features in Cisco IOS Release 12.3(17b)BC4
Downstream Load Balancing Distribution with Upstream Load Balancing
New Hardware Features in Cisco IOS Release 12.3(17b)BC3
New Software Features in Cisco IOS Release 12.3(17b)BC3
New Hardware Features in Cisco IOS Release 12.3(17a)BC2
New Software Features in Cisco IOS Release 12.3(17a)BC2
Advanced-Mode DOCSIS Set-Top Gateway Issue 1.2
New Hardware Features in Cisco IOS Release 12.3(17a)BC1
New Software Features in Cisco IOS Release 12.3(17a)BC1
New Hardware Features in Cisco IOS Release 12.3(17a)BC
New Software Features in Cisco OS Release 12.3(17a)BC
Configurable Leasequery Server
Dynamic Channel Change (DCC) for Load Balancing
DSX Messages and Synchronized PHS Information
High Availability Support for Encrypted IP Multicast
Management Information Base (MIB) Changes and Enhancements
Pre-equalization Control for Cable Modems
show cable modem Command Changes
New Hardware Features in Cisco IOS Release 12.3(13a)BC6
New Software Features in Cisco IOS Release 12.3(13a)BC6
New Hardware Features in Cisco IOS Release 12.3(13a)BC5
New Software Features in Cisco IOS Release 12.3(13a)BC5
New Hardware Features in Cisco IOS Release 12.3(13a)BC4
New Software Features in Cisco IOS Release 12.3(13a)BC4
New Hardware Features in Cisco IOS Release 12.3(13a)BC3
New Software Features in Cisco IOS Release 12.3(13a)BC3
New Hardware Features in Cisco IOS Release 12.3(13a)BC2
New Software Features in Cisco IOS Release 12.3(13a)BC2
New Hardware Features in Cisco IOS Release 12.3(13a)BC1
New Software Features in Cisco IOS Release 12.3(13a)BC1
New Hardware Features in Cisco IOS Release 12.3(13a)BC
New Software Features in Cisco IOS Release 12.3(13a)BC
Access Control List Support for COPS Intercept
Admission Control for the Cisco CMTS
Advanced-Mode DOCSIS Set-Top Gateway Issue 1.1
Cable Monitor Support for Cisco MC28U Broadband Processing Engines
COPS TCP Support for the Cisco Cable Modem Termination System
DOCSIS 1.0 Concatenation Override Featurette
Dynamic SID/VRF Mapping Support
Enhanced Rate Bandwidth Allocation (ERBA) Support for DOCSIS 1.0 Cable Modems
High Availability Features in Cisco IOS Release 12.3(13a)BC
Service Independent Intercept (SII) Support on the Cisco uBR7200 Series
Optional Upstream Scheduler Modes
Transparent LAN Service and Layer 2 Virtual Private Networks
Virtual Interface Bundling on the Cisco uBR-MC28/U BPE
New Hardware Features in Cisco IOS Release 12.3(9a)BC8
New Software Features in Cisco IOS Release 12.3(9a)BC8
New Hardware Features in Cisco IOS Release 12.3(9a)BC7
New Software Features in Cisco IOS Release 12.3(9a)BC7
New Hardware Features in Cisco IOS Release 12.3(9a)BC6
New Software Features in Cisco IOS Release 12.3(9a)BC6
New Hardware Features in Cisco IOS Release 12.3(9a)BC5
New Software Features in Cisco IOS Release 12.3(9a)BC5
New Hardware Features in Cisco IOS Release 12.3(9a)BC4
New Software Features in Cisco IOS Release 12.3(9a)BC4
New Hardware Features in Cisco IOS Release 12.3(9a)BC3
New Software Features in Cisco IOS Release 12.3(9a)BC3
New Hardware Features in Cisco IOS Release 12.3(9a)BC2
New Software Features in Cisco IOS Release 12.3(9a)BC2
New Hardware Features in Cisco IOS Release 12.3(9a)BC1
New Software Features in Cisco IOS Release 12.3(9a)BC1
New Hardware Features in Cisco IOS Release 12.3(9a)BC
New Software Features for Cisco IOS Release 12.3(9a)BC
Cisco Broadband Troubleshooter (CBT) 3.2
Cisco CMTS Static CPE Override
Cisco DDC (Dual DOCSIS Channel)
Cisco IOS Release 12.3(9a)BC Command-Line Interface (CLI) Enhancements
DOCSIS Set-top Gateway (DSG) 1.0
MIBs Changes and Updates in Cisco IOS Release 12.3(9a)BC
Spectrum Management Enhancements in Cisco IOS Release 12.3(9a)BC
Subscriber Traffic Management (STM) Version 1.1
Transparent LAN Services (TLS) and L2 Tunneling ATM/SIDs
Virtual Interface Support and Frequency Stacking Support
MIB Changes and Enhancements for Cisco IOS Release 12.3(17a)BC:
How to Upgrade to Cisco IOS Release 12.3(21)BC
New Command Information for Cisco IOS Release 12.3(21)BC3
Restriction for Cisco IOS Release 12.3(17a)BC
New Command Information for Cisco IOS Release 12.3(13a)BC3
New and Changed Command Reference for Cisco IOS Release 12.3(9a)BC
Caveats for Cisco IOS Release 12.3 BC
Open Caveats for Release 12.2(23)BC7
Resolved Caveats for Release 12.2(23)BC7
Open Caveats for Release 12.3(23)BC6
Resolved Caveats for Release 12.3(23)BC6
Open Caveats for Release 12.3(23)BC5
Resolved Caveats for Release 12.3(23)BC5
Open Caveats for Release 12.3(23)BC4
Resolved Caveats for Release 12.3(23)BC4
Open Caveats for Release 12.3(21a)BC8
Resolved Caveats for Release 12.3(21a)BC8
Open Caveats for Release 12.3(23)BC3
Resolved Caveats for Release 12.3(23)BC3
Open Caveats for Release 12.3(23)BC2
Resolved Caveats for Release 12.3(23)BC2
Open Caveats for Release 12.3(21a)BC7
Resolved Caveats for Release 12.3(21a)BC7
Open Caveats for Release 12.3(23)BC1
Resolved Caveats for Release 12.3(23)BC1
Open Caveats for Release 12.3(21a)BC6
Resolved Caveats for Release 12.3(21a)BC6
Open Caveats for Release 12.3(21a)BC5
Resolved Caveats for Release 12.3(21a)BC5
Open Caveats for Release 12.3(23)BC
Resolved Caveats for Release 12.3(23)BC
Open Caveats for Release 12.3(21a)BC4
Resolved Caveats for Release 12.3(21a)BC4
Open Caveats for Release 12.3(21a)BC3
Resolved Caveats for Release 12.3(21a)BC3
Open Caveats for Release 12.3(21a)BC2
Resolved Caveats for Release 12.3(21a)BC2
Open Caveats for Release 12.3(21a)BC1
Resolved Caveats for Release 12.3(21a)BC1
Open Caveats for Release 12.3(21)BC
Resolved Caveats for Release 12.3(21)BC
Open Caveats for Release 12.3(17b)BC9
Resolved Caveats for Release 12.3(17b)BC9
Open Caveats for Release 12.3(17b)BC8
Resolved Caveats for Release 12.3(17b)BC8
Open Caveats for Release 12.3(17b)BC7
Resolved Caveats for Release 12.3(17b)BC7
Open Caveats for Release 12.3(17b)BC6
Resolved Caveats for Release 12.3(17b)BC6
Open Caveats for Release 12.3(17b)BC5
Resolved Caveats for Release 12.3(17b)BC5
Open Caveats for Release 12.3(17b)BC4
Resolved Caveats for Release 12.3(17b)BC4
Open Caveats for Release 12.3(17b)BC3
Resolved Caveats for Release 12.3(17b)BC3
Open Caveats for Release 12.3(17a)BC2
Resolved Caveats for Release 12.3(17a)BC2
Open Caveats for Release 12.3(17a)BC1
Resolved Caveats for Release 12.3(17a)BC1
Open Caveats for Release 12.3(17a)BC
Resolved Caveats for Release 12.3(17a)BC
Open Caveats for Release 12.3(13a)BC6
Resolved Caveats for Release 12.3(13a)BC6
Open Caveats for Release 12.3(13a)BC5
Resolved Caveats for Release 12.3(13a)BC5
Open Caveats for Release 12.3(13a)BC4
Resolved Caveats for Release 12.3(13a)BC4
Open Caveats for Release 12.3(13a)BC3
Resolved Caveats for Release 12.3(13a)BC3
Open Caveats for Release 12.3(13a)BC2
Resolved Caveats for Release 12.3(13a)BC2
Open Caveats for Release 12.3(13a)BC1
Resolved Caveats for Release 12.3(13a)BC1
Open Caveats for Release 12.3(13a)BC
Resolved Caveats for Release 12.3(13a)BC
Open Caveats for Release 12.3(9a)BC8
Resolved Caveats for Release 12.3(9a)BC8
Open Caveats for Release 12.3(9a)BC7
Resolved Caveats for Release 12.3(9a)BC7
Open Caveats for Release 12.3(9a)BC6
Resolved Caveats for Release 12.3(9a)BC6
Open Caveats for Release 12.3(9a)BC5
Resolved Caveats for Release 12.3(9a)BC5
Open Caveats for Release 12.3(9a)BC4
Resolved Caveats for Release 12.3(9a)BC4
Open Caveats for Release 12.3(9a)BC3
Resolved Caveats for Release 12.3(9a)BC3
Open Caveats for Release 12.3(9a)BC2
Resolved Caveats for Release 12.3(9a)BC2
Open Caveats for Release 12.3(9a)BC1
Resolved Caveats for Release 12.3(9a)BC1
Open Caveats for Release 12.3(9a)BC
Resolved Caveats for Release 12.3(9a)BC
Cisco IOS Software Documentation Set
Release 12.3 Documentation Set
Obtaining Documentation, Obtaining Support, and Security Guidelines
Release Notes for Cisco uBR7200 Series for Cisco IOS Release 12.3BC
Revised: March 30, 2009, OL-6763-45CDC Date: March 30, 2009
The release notes for Cisco IOS Release 12.3BC for the Cisco uBR7200 series universal broadband routers describe the enhancements and caveats for all releases in the cable-specific, early deployment, 12.3BC release trains. Some of the most recent releases in 12.3BC include 12.3(17b)BCx-, 12.3(21a)BCx-, and 12.3(23)BCx-based releases.
These release notes are updated with each release in the train. This update adds information for Cisco IOS Release 12.3(23)BC7 . For a list of the updated caveats that apply to each release, see the "Caveats for Cisco IOS Release 12.3 BC" section and Caveats for Cisco IOS Release 12.3 T. Use these release notes in conjunction with the cross-platform Release Notes for Cisco IOS Release 12.3 T located on Cisco.com and the Documentation CD-ROM.
Note
Cisco IOS Release 12.3(23)BC6 does not include support for telco-return images.
Cisco recommends that you view the field notices for this release to see if your software or hardware platforms are affected. If you have an account on Cisco.com, you can find field notices at http://www.cisco.com/en/US/support/tsd_products_field_notice_summary.html. If you do not have a Cisco.com login account, you can find field notices at http://www.cisco.com/en/US/support/tsd_products_field_notice_summary.html.
Contents
These release notes describe the following topics:
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Introduction
For information on new features and the Cisco IOS documentation set supported by Cisco IOS Release 12.3(23)BC6, see the "New and Changed Information" section and the "Related Documentation" section.
Cisco uBR7200 Series Universal Broadband Routers
The Cisco uBR7200 series universal broadband routers—the Cisco uBR7223, the Cisco uBR7246, and the Cisco uBR7246VXR—are based on the Data-over-Cable Service Interface Specification (DOCSIS) standards. Each is designed to be installed at a cable operator's headend facility or distribution hub and to function as the cable modem termination system (CMTS) for subscriber-end devices such as the Cisco uBR905 and Cisco uBR925 cable access routers, and other DOCSIS-compliant cable modems (CMs) and set-top boxes (STBs).
Cisco uBR7200 series universal broadband routers allow two-way transmission of digital data and Voice over IP (VoIP) traffic over a hybrid fiber-coaxial (HFC) network. The Cisco uBR7200 series routers support IP routing with a wide variety of protocols and combinations of Ethernet, Fast Ethernet, Gigabit Ethernet, serial, High-Speed Serial Interface (HSSI), Packet over SONET (POS) OC-3 and OC-12c, Asynchronous Transfer Mode (ATM) media, and EtherChannel trunking technology.
Cisco IOS Release 12.3(23)BC6 supports the Cisco uBR7246VXR, Cisco uBR7246, and Cisco uBR7223 universal broadband routers.
Cisco uBR7246VXR Universal Broadband Router
The Cisco uBR7246VXR offers an industry-proven CMTS and carrier-class router in a scalable platform with a high-performance network processing engine to support data, voice, and video services for medium to large network installations.
The Cisco uBR7246VXR provides the following major hardware features:
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Note
Cisco uBR7246 Universal Broadband Router
The Cisco uBR7246 offers an industry-proven CMTS and carrier-class router in a scalable platform to support data, voice, and video services for medium to large network installations.
The Cisco uBR7246 provides the following major hardware features:
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Note
http://www.cisco.com/en/US/products/hw/cable/ps2217/products_eol_models.html.
Cisco uBR7223 Universal Broadband Router
The Cisco uBR7223 is a cost-effective, scalable interface between subscriber cable modems and the backbone data network, and is designed specifically for small to medium network installations.
The Cisco uBR7223 provides the following major hardware features:
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Note
Cisco uBR7200 Series Universal Broadband Router Overview
Table 1 provides a quick overview of the major hardware features of the three Cisco uBR7200 series universal broadband routers.
Table 1 Cisco uBR7200 Series Universal Broadband Router Overview
Network Processing Engine
One of the following:
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One of the following:
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One of the following:
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I/O Controller
One of the following:
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One of the following:
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One of the following:
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Network Interface Port Adapters
up to 2
up to 2
1
Cable Interface Line Cards
up to 4
up to 4
up to 2
Removable Power Supplies
up to 2
up to 2
1
PCMCIA Slots
2
2
2
1 End of Sale (EOS) point on November 15, 2001.
2 End of Sale (EOS) point on October 23, 2002.
Note
Early Deployment Releases
These release notes describe the Cisco uBR7200 series universal broadband routers for Cisco IOS Release 12.3(23)BC6. Feature support is cumulative from release to release, unless otherwise noted.
Supported Features
The Cisco IOS Release 12.3BC train supports the following new features.
Table 2 Early Deployment (ED) Releases for the Cisco uBR7200 Series
AvailabilityCisco IOS Release 12.3(23)BC7
None
Now
Cisco IOS Release 12.3(23)BC6
None
None
Now
Cisco IOS Release 12.3(23)BC5
None
None
Now
Cisco IOS Release 12.3(23)BC4
None
None
Now
Cisco IOS Release 12.3(21a)BC8
None
None
Now
Cisco IOS Release 12.3(23)BC3
None
None
Now
Cisco IOS Release 12.3(23)BC2
•
None
Now
Cisco IOS Release 12.3(21a)BC7
None
None
Now
Cisco IOS Release 12.3(23)BC1
None
Now
Cisco IOS Release 12.3(21a)BC6
None
None
Now
Cisco IOS Release 12.3(21a)BC5
None
None
Now
Cisco IOS Release 12.3(23)BC
None
None
Now
Cisco IOS Release 12.3(21a)BC4
None
None
Now
Cisco IOS Release 12.3(21a)BC3
None
Now
Cisco IOS Release 12.3(21a)BC2
None
None
Now
Cisco IOS Release 12.3(21a)BC1
None
None
Now
Cisco IOS Release 12.3(21)BC
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•
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•
None
Now
Cisco IOS Release 12.3(17b)BC9
None
None
Now
Cisco IOS Release 12.3(17b)BC8
None
None
Now
Cisco IOS Release 12.3(17b)BC7
None
None
Now
Cisco IOS Release 12.3(17b)BC6
None
None
Now
Cisco IOS Release 12.3(17b)BC5
None
None
Now
Cisco IOS Release 12.3(17b)BC4
•
None
Now
Cisco IOS Release 12.3(17b)BC3
None
None
Now
Cisco IOS Release 12.3(17a)BC2
•
None
Now
Cisco IOS Release 12.3(17a)BC1
None
None
Now
Cisco IOS Release 12.3(17a)BC
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•
•
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None
Now
Cisco IOS Release 12.3(13a)BC6
None
None
Now
Cisco IOS Release 12.3(13a)BC5
None
None
Now
Cisco IOS Release 12.3(13a)BC4
None
None
Now
Cisco IOS Release 12.3(13a)BC3
None
None
Now
Cisco IOS Release 12.3(13a)BC2
None
None
Now
Cisco IOS Release 12.3(13a)BC1
None
None
Now
Cisco IOS Release 12.3(13a)BC
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•
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•
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None
Now
Cisco IOS Release 12.3(9a)BC8
None
None
Now
Cisco IOS Release 12.3(9a)BC7
None
None
Now
Cisco IOS Release 12.3(9a)BC6
None
None
Now
Cisco IOS Release 12.3(9a)BC5
None
None
Now
Cisco IOS Release 12.3(9a)BC4
None
None
Now
Cisco IOS Release 12.3(9a)BC3
None
None
Now
Cisco IOS Release 12.3(9a)BC2
None
None
Now
Cisco IOS Release 12.3(9a)BC1
None
None
Now
Cisco IOS Release 12.3(9a)BC
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None
Now
1 Only major features are listed.
2 MIB = Management Information Base
System Requirements
This section describes the system requirements for Cisco IOS Release 12.3(23)BC6 with the following topics:
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Memory Recommendations
Table 3 displays the memory recommendations of the Cisco IOS feature sets for the Cisco uBR7200 series universal broadband routers for Cisco IOS Release 12.3 BC. Cisco uBR7200 series routers are only available with a 48 MB or 128 MB of Flash disk memory on the I/O Controller cards. The UBR7200-NPE-G1 uses compact Flash disk only.
Note
The image subset legend for Table 3 is as follows:
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Note
Note
DOCSIS System Interoperability on the Cisco uBR7246VXR CMTS
This section describes the operation of primary interoperability features in the Cisco uBR7246VXR router. For additional DOCSIS information for the Cisco uBR7246VXR router, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/DOCSIS11.html.
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_docs.html.
DOCSIS 1.0 Baseline Privacy
DOCSIS baseline privacy interface (BPI) gives subscribers data privacy across the RF network, encrypting traffic flows between the CMTS and cable modem. BPI ensures that a cable modem, uniquely identified by its Media Access Control (MAC) address, can obtain keying material for services only it is authorized to access.
To enable BPI, choose software at both the CMTS and cable modem that support the BPI mode of operation. For the Cisco uBR7200 series software, choose an image with "k8" in its file name or BPI in the feature set description. BPI must be enabled using the DOCSIS configuration file.
The cable modem must also support BPI. Cable modems must have factory-installed RSA private/public key pairs to support internal algorithms to generate key pairs prior to first BPI establishment.
Note
Cable Modem Interoperability
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Note
Configuring the CMTS Cable Interface When in Routing Mode
If you have configured a Cisco cable modem for routing mode and are also using the cable-modem dhcp-proxy nat command on the cable modem, you must configure the corresponding cable interface on the Cisco uBR7200 series router with the cable dhcp-giaddr policy command. Otherwise, the cable interface could flap and the cable modem could go offline unpredictably.
DOCSIS 1.0 and 1.0+ Extensions
Earlier releases of Cisco IOS software for the Cisco uBR7246VXR router provide support for the original DOCSIS 1.0 standard, featuring basic best-effort data traffic and Internet access over the coaxial cable network. The DOCSIS 1.0+ extensions provides Quality of Service (QoS) enhancements for real-time traffic, such as voice calls, in anticipation of full DOCSIS 1.1 support.
Note
DOCSIS 1.1 Extensions
The DOCSIS 1.1 specification provides the following functional enhancements over DOCSIS 1.0 coaxial cable networks:
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DOCSIS 1.1 Quality of Service
The DOCSIS 1.1 QoS framework is based on the following objects:
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In DOCSIS 1.1, the basic unit of QoS is the service flow, which is a unidirectional sequence of packets transported across the RF interface between the cable modem and CMTS. A service flow is characterized by a set of QoS parameters such as latency, jitter, and throughput assurances.
Every cable modem establishes a primary service flow in both the upstream and downstream directions. The primary flows maintain connectivity between the cable modem and CMTS at all times.
In addition, a DOCSIS 1.1 cable modem can establish multiple secondary service flows. The secondary service flows can either be permanently created (they persist until the cable modem is reset or powered off) or they can be created dynamically to meet the needs of the on demand traffic being transmitted.
Each service flow has a set of QoS attributes associated with it. These QoS attributes define a particular class of service and determine characteristics such as the maximum bandwidth for the service flow and the priority of its traffic. The class of service attributes can be inherited from a preconfigured CMTS local service class (class-based flows), or they can be individually specified at the time of the creation of the service flow.
Each service flow has multiple packet classifiers associated with it, which determine the type of application traffic allowed to be sent on that service flow. Each service flow can also have a Payload Header Suppression (PHS) rule associated with it to determine which portion of the packet header will be suppressed when packets are transmitted on the flow.
ARP Filter
The cable arp filter command, introduced with Cisco IOS Release 12.2(15)BC2b, enables service providers to filter ARP request and reply packets, to prevent a large volume of such packets from interfering with the other traffic on the cable network. For additional information refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/cblarpfl.html.
Additional Cable Modem Interoperability
In Cisco IOS Release 12.2(11)BC3c, the following new or enhanced software features are implemented for DOCSIS 1.1 functionality. Feature support continues with Cisco IOS Release 12.3(9a)BC. (For more information, see the feature module DOCSIS 1.1 for Cisco uBR7200 Series Universal Broadband Routers).
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The Cisco uBR7200 series routers support clock hardware and software to enable high-quality delivery of IP telephony services through synchronized data transmissions. To support the clock feature set, a Cisco uBR7246VXR chassis must be used. The Cisco uBR7246VXR must contain a clock card and either a Cisco uBR-MC16E or Cisco uBR-MC28C cable interface line card. Only these cards support the external clock reference from the clock card to distribute that signal to CMs or STBs attached to the specific network segments.
Each cable modem must also support VoIP applications and the clock reference feature set to enable synchronized timing. The Cisco uBR924 and Cisco uBR925 cable access routers, running Cisco IOS Release 12.0(7)T or later, supports the clock reference feature set automatically.
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The Cisco uBR7246VXR supports the National Clock Card. The National Clock Card allows the Cisco uBR7246VXR to accept a primary or secondary external clock reference. If there is no primary clock, the Clock Card goes into Holdover. After a period of 2-10 seconds, the Clock Card switches to the secondary clock. When the primary clock is back online, the Clock Card switches to the primary clock after a period of 2-10 seconds. The National Clock Card requires the Cisco uBR-MC1xS or the Cisco uBR-MC1xE cable interface line card.
Supported Hardware
This section describes the hardware supported by the Cisco uBR7246VXR Universal Broadband Router in Cisco IOS 12.3BC software releases.
Network Processing Engines
The Cisco uBR7246VXR supports the following Network Processing Engines (NPEs) in Cisco IOS Release 12.3(23)BC6:
•
•
•
•
Note
Note
For more information, see the Network Processing Engine and Network Services Engine Installation and Configuration guide and the Memory Replacement Instructions for the Network Processing Engine or Network Services Engine and Input/Output Controller guide on Cisco.com.
I/O Controllers
Cisco IOS Release 12.3(23)BC6 supports the following I/O controllers for the Cisco uBR7200 series universal broadband routers:
•
•
•
Note
Note
Cable Interface Line Cards
Table 4 provides a quick overview of the cable interface line cards that are supported in Cisco IOS Release 12.3(23)BC6 for the Cisco uBR7200 series routers:
OIR of Cable Interface Line Cards
Technically, the Cisco uBR7200 series universal broadband routers support true online insertion and removal (OIR), or "hot swapping" of cable interface line cards only when exchanging cable interface line cards of the exact same type (for example, exchanging a Cisco uBR-MC28U card for another Cisco uBR-MC28U card). Under these conditions, no reload of the router is required.
Caution
Port Adapter Cards
Table 5 lists and describes the port adapters supported by Cisco uBR7200 series routers in Cisco IOS Release 12.3(23)BC6.
Note
http://www.cisco.com/en/US/products/hw/cable/ps2217/prod_eol_notices_list.html.
Note
Table 5 Cisco uBR7200 Series Port Adapter Releases
PA-4E—4-port Ethernet 10BASE-T port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-8E—8-port Ethernet 10BASE-T port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-FE-TX—1-port 100BASE-TX Fast Ethernet port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-FE-FX—1-port 100BASE-FX Fast Ethernet port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-2FEISL-TX—2-port 100BASE-TX Fast Ethernet port adapter with Inter-Switch Link (ISL) support
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-2FEISL-FX—2-port 100BASE-FX Fast Ethernet port adapter with ISL support
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-12E/2FE—12-port 10BASE-T and 2-port 10/100BASE-TX port adapter
Not applicable
12.2(4)XF1
Not applicable
No
PA-2FE-TX—2-port 100BASE-TX Fast Ethernet port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-2FE-FX—2-port 100BASE-FX Fast Ethernet port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-GE—1-port, full-duplex, IEEE 802.3z-compliant Gigabit Ethernet (GE) port adapter1
Not applicable
Not applicable
12.2(4)XF1
No
PA-4T+—4-port synchronous serial port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-8T-232—8-port EIA/TIA-232 synchronous serial port adapter
12.2(4)XF1
12.2(4)XF1
Not applicable
Yes
PA-8T-V35—8-port V.35 synchronous serial port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-8T-X21—8-port X.21 synchronous serial port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-4E1G-75—4-port unbalanced (75-ohm) E1-G.703/G.704 synchronous serial port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-4E1G-120—4-port balanced (120-ohm) E1-G.703/G.704 synchronous serial port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-E3—1-port high-speed serial E3 interface port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-T3—1-port T3 serial interface port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-T3+—1-port T3 serial interface port adapter enhanced
12.2(4)BC1
Not applicable
12.2(4)BC1
No
PA-2E3—2-port high-speed serial E3 interface port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-2T3—2-port T3 serial interface port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-2T3+—2-port T3 serial interface port adapter enhanced
12.2(4)BC1
Not applicable
12.2(4)BC1
No
PA-MC-T3—1-port T3 (channelized into 28 independent T1 data lines) port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-MC-2T1—2-port multichannel DS1 Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) single-wide port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-MC-4T1—4-port multichannel DS1 ISDN PRI single-wide port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-MC-8E1/120—8-port multichannel E1 ISDN PRI single-wide port adapter
12.2(4)XF1
12.2(4)XF1
Not applicable
Yes
PA-MC-8T1—8-port multichannel DS1 ISDN PRI single-wide port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-MC-2E1/120—2-port multichannel E1 ISDN PRI single-wide port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-H—1-port HSSI port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-2H—2-port HSSI port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-A1-OC3SMI—1-port ATM OC-3c/STM-1 single-mode intermediate reach port adapter
12.2(4)XF1
12.2(4)XF1
Not applicable
No
PA-A1-OC3MM—1-port ATM OC-3c/STM-1 multimode port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-A2-4E1XC-OC3SM—5-port ATM CES2 (4 E1 120-ohm CBR3 ports and 1 OC-3 ATM single-mode port) port adapter
Not applicable
12.2(4)XF1
Not applicable
Yes
PA-A2-4E1XC-E3ATM—5-port ATM CES2 (4 E1 120-ohm CBR3 ports and 1 E3 ATM port) port adapter
Not applicable
12.2(4)XF1
Not applicable
Yes
PA-A2-4T1C-OC3SM—5-port ATM CES2 (4 T1 CBR3 ports and 1 OC-3 ATM single-mode port) port adapter
Not applicable
12.2(4)XF1
Not applicable
Yes
PA-A2-4T1C-T3ATM—5-port ATM CES2 (4 T1 CBR3 ports and 1 T3 ATM port) port adapter
Not applicable
12.2(4)XF1
Not applicable
Yes
PA-A3-E3—1-port E3 ATM, PCI-based port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-A3-T3—1-port T3 ATM, PCI-based port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-A3-OC3MM—1-port OC-3c ATM, PCI-based multimode port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-A3-OC3SMI—1-port OC-3c ATM, PCI-based single-mode intermediate reach port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-A3-OC3SML—1-port OC-3c ATM, PCI-based single-mode long reach port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-A3-8T1IMA—ATM inverse multiplexer over ATM port adapter with 8 T1 ports
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
No
PA-POS-OC3SML—1-port POS OC-3 single-mode, long reach port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-POS-OC3SMI—1-port OC-3 single-mode, intermediate reach port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
PA-POS-OC3MM—1-port POS OC3 multimode port adapter
12.2(4)XF1
12.2(4)XF1
12.2(4)XF1
Yes
PA-SRP-OC12SML—2-port OC-12c (STM4c) single-mode fiber, long reach DPT port adapter
Not applicable
12.2(4)XF1
12.2(4)XF1
PA-SRP-OC12SMI—2-port OC-12c (STM4c) single-mode fiber, intermediate reach DPT port adapter
Not applicable
12.2(4)XF1
12.2(4)XF1
PA-SRP-OC12SMX—2-port OC-12c (STM4c) single-mode fiber, extended reach DPT port adapter
Not applicable
12.2(4)XF1
12.2(4)XF1
PA-SRP-OC12MM—2-port OC-12c (STM4c) multimode fiber DPT port adapter
Not applicable
12.2(4)XF1
12.2(4)XF1
Yes
1 The Gigabit Ethernet port adapter must be combined with the appropriate optical fiber cable and a Gigabit Interface Converter (GBIC).
2 CES = circuit emulation services.
3 CBR = constant bit rate.
Determining Your Software Release
To determine the version of Cisco IOS software running on the Cisco uBR7200 series universal broadband router, log in to the router and enter the show version EXEC command:
Router> show versionCisco Internetwork Operating System SoftwareIOS (tm) 12.3 BC Software (ubr7200-is-mz), Version 12.3(23)BC6, RELEASE SOFTWAREUpgrading to a New Software Release
For general information about upgrading to a new software release, see Cisco IOS Upgrade Ordering Instructions located at: http://www.cisco.com/warp/public/cc/pd/iosw/prodlit/957_pp.htm.
Feature Support
Cisco IOS software is packaged in feature sets that consist of software images that support specific platforms. The feature sets available for a specific platform depend on which Cisco IOS software images are included in a release. Each feature set contains a specific set of Cisco IOS features.
Caution
The feature set tables have been removed from the Cisco IOS Release 12.3 release notes to improve the usability of the release notes documentation. The feature-to-image mapping that was provided by the feature set tables is available through Cisco Feature Navigator.
Cisco Feature Navigator is a web-based tool that enables you to determine which Cisco IOS software images support a specific set of features and which features are supported in a specific Cisco IOS image. You can search by feature or by feature set (software image). Under the release section, you can compare Cisco IOS software releases side by side to display both the features unique to each software release and the features that the releases have in common.
To access Cisco Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, send a blank e-mail to cco-locksmith@cisco.com. An automatic check will verify that your e-mail address is registered with Cisco.com. If the check is successful, account details with a new random password will be e-mailed to you. Qualified users can establish an account on Cisco.com by following the directions found at this URL:
Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology releases occur. For the most current information, go to the Cisco Feature Navigator home page at the following URL:
For frequently asked questions about Cisco Feature Navigator, see the FAQs at the following URL:
http://www.cisco.com/support/FeatureNav/FNFAQ.html
Determining Which Software Images (Feature Sets) Support a Specific Feature
To determine which software images (feature sets) in Cisco IOS Release 12.3 support a specific feature, go to the Cisco Feature Navigator home page, enter your Cisco.com login, and perform the following steps:
Step 1
Step 2
Step 3
Note
Repeat this step to add additional features. A maximum of 20 features can be chosen for a single search.
Step 4
Step 5
Step 6
Step 7
Determining Which Features Are Supported in a Specific Software Image (Feature Set)
To determine which features are supported in a specific software image (feature set) in Cisco IOS Release 12.3, go to the Cisco Feature Navigator home page, enter your Cisco.com login, and perform the following steps:
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
New and Changed Information
The following sections list the new hardware and software features supported by the Cisco uBR7200 series routers for Cisco IOS Release 12.3BC.
Tip
NewHardware Features in Cisco IOS Release 12.3(23)BC7
There are no new hardware features supported in Cisco IOS Release 12.3(23)BC7.
NewSoftware Features in Cisco IOS Release 12.3(23)BC7
The following software features are new in Cisco IOS Release 12.3(23)BC7.
Enhanced Show Tech
A new keyword, cmts, has been added to the show tech-support command to provide debugging information specific to a cable interface or a modem for the following universal broadband routers:
•
•
•
For details about this command, see the Cisco IOS CMTS Cable Command Reference at the following URL:
http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_19_show_m_to_show_z.html
Cable Modem QoS Information
A new command, show cable modem service-flow, is introduced to provide information about all service flows associated with a particular modem.
For details about this command, see the Cisco IOS CMTS Cable Command Reference at the following URL:
http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_16_show_cable_m_to_show_cable_t.html
Direct Load for Cable Modems
A new command, cable upstream equalization-error-recovery, is introduced to enable the CMTS to send Type-Length-Value (TLV) Type 9 in the DOCSIS RNG-RSP MAC management messages. The TLV Type 9 helps CMs come online if the TLV Type 4 convolved method causes CMs to go offline.
For details about this command, see the Cisco IOS CMTS Cable Command Reference at the following URL:
http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_10_cable_u_to_cable_w.html
Three Step Dynamic Modulation
Cisco IOS Release 12.3(33)BC7 introduces Three Step Dynamic Modulation, which allows you to create and use a third modulation profile in the Dynamic Upstream Modulation feature, as against the existing 16-QAM and quadrature phase-shift keying (QPSK) modulation profiles. The feature now permits 64-QAM based modulation profile to increase the upstream throughput and to satisfy the demand for new spectrum management.
The 64-QAM modulation profile is a more bandwidth-efficient modulation scheme and has a higher throughput than the other two modulation profiles.
For more details on Three Step Dynamic Modulation and the Dynamic Upstream Modulation feature, refer to Spectrum Management and Advanced Spectrum Management for the Cisco CMTS guide at the following location: http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_spec.html
The Cisco IOS Release 12.3(23)BC7 introduces or modifies the following commands:
The cable upstream threshold hysteresis command was introduced to allow configurable hysteresis values for spectrum management channel upgrade thresholds.
The cable upstream modulation command was enhanced to accept up to three profiles, instead of the existing two.
The show cable hop history command was enhanced to display the modulation profile number when a change occurs.
New Hardware Features in Cisco IOS Release 12.3(23)BC6
There are no new hardware features supported in Cisco IOS Release 12.3(23)BC6.
New Software Features in Cisco IOS Release 12.3(23)BC6
There are no new software features supported in Cisco IOS Release 12.3(23)BC6.
New Hardware Features in Cisco IOS Release 12.3(23)BC5
There are no new hardware features supported in Cisco IOS Release 12.3(23)BC5.
New Software Features in Cisco IOS Release 12.3(23)BC5
The following command is modified in Cisco IOS Release 12.3(23)BC5:
•
The command output was modified to display the linecard's CPU revision number.
New Hardware Features in Cisco IOS Release 12.3(23)BC4
There are no new hardware features supported in Cisco IOS Release 12.3(23)BC4.
New Software Features in Cisco IOS Release 12.3(23)BC4
There are no new software features supported in Cisco IOS Release 12.3(23)BC4.
New Hardware Features in Cisco IOS Release 12.3(21a)BC8
There are no new hardware features supported in Cisco IOS Release 12.3(21a)BC8.
New Software Features in Cisco IOS Release 12.3(21a)BC8
There are no new software features supported in Cisco IOS Release 12.3(21a)BC8.
New Hardware Featues in Cisco IOS Release 12.3(23)BC3
There are no new hardware features supported in Cisco IOS Release 12.3(23)BC3.
New Software Features in Cisco IOS Release 12.3(23)BC3
There are no new software features supported in Cisco IOS Release 12.3(23)BC3.
New Hardware Features in Cisco IOS Release 12.3(23)BC2
There are no new hardware features supported in Cisco IOS Release 12.3(23)BC2.
New Software Features in Cisco IOS Release 12.3(23)BC2
The following software features are new in Cisco IOS Release 12.3(23)BC2.
Subscriber Traffic Management Version 1.2
The STM feature enables service providers to identify and control subscribers who exceed the maximum bandwidth allowed under their registered quality of service (QoS) profiles. STM works as a low CPU alternative to Network-Based Application Recognition (NBAR) and access control lists (ACLs), however, using STM does not mean that NBAR and ACLs have to be turned off; STM can be applied along with NBAR and ACLs. STM also works in conjunction with the Cisco Broadband Troubleshooter to support additional network management and troubleshooting functions in the Cisco CMTS.
The STM Version 1.2 feature is enhanced in Cisco IOS Release 12.3(23)BC2 with the following support on the Cisco uBR7246VXR and Cisco uBR10012 Universal Broadband Routers:
•
•
•
•
•
Addition of the following SNMP objects to the CISCO-CABLE-QOS-MONITOR-MIB:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
The following commands are new or modified:
•
•
•
•
•
•
For detailed information about this feature, see the Subscriber Traffic Management on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_sbsbr_tfmgt.html
Upstream Utilization Optimization
The Upstream (US) Utilization Optimization feature on the Cisco Cable Modem Termination System (CMTS) routers provides higher upstream throughput. It provides the following benefits and functions on a Cisco CMTS router:
•
•
The following commands are new or modified:
•
•
•
•
•
For detailed information about this feature, see the Upstream Utilization Optimization on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_upstream_rate_adapt.html
New Hardware Features in Cisco IOS Release 12.3(21a)BC7
There are no new hardware features supported in Cisco IOS Release 12.3(21a)BC7.
New Software Features in Cisco IOS Release 12.3(21a)BC7
There are no new software feature supported in Cisco IOS Release 12.3(21a)BC7.
New Hardware Features in Cisco IOS Release 12.3(23)BC1
There are no new hardware features supported in Cisco IOS Release 12.3(23)BC1.
New Software Features in Cisco IOS Release 12.3(23)BC1
The following software feature is new in Cisco IOS Release 12.3(23)BC1.
PacketCable Subscriber ID Support
Subscriber ID is added to all Gate Control messages and enhances error codes returned from the Cable Modem Termination System (CMTS).
Previously, the Gate ID was unique only to individual CMTS systems, with the CMTS proxying all CMS (Call Management Server) Gate control messaging through a central device which manages the CMTS connections on the behalf of the CMS. The CMS had a single Common Open Policy Service (COPS) association to the proxy device. Therefore, the Gate IDs could be duplicated when using multiple CMTS systems.
The new PacketCable Subscriber ID feature adds a Subscriber ID to each Gate Control message to disambiguate the Gate IDs between the CMS and proxy device. The Subscriber ID parameter is added to the following COPS messages:
•
•
•
•
The Subscriber ID is available at the CMS and is used in the Gate-Set messages. Additionally, the error codes returned from CMTS or its proxy are enhanced to include more specific information about gate operation failures.
To enable this feature, a new command is introduced: packetcable gate send-subscriberID used in global configuration mode. For more information, see the Cisco IOS CMTS Cable Command Reference Guide.
New Hardware Features in Cisco IOS Release 12.3(21a)BC6
There are no new hardware features supported in Cisco IOS Release 12.3(21a)BC6.
New Software Features in Cisco IOS Release 12.3(21a)BC6
There are no new software features supported in Cisco IOS Release 12.3(21a)BC6.
New Hardware Features in Cisco IOS Release 12.3(21a)BC5
There are no new hardware features supported in Cisco IOS Release 12.3(21a)BC5.
New Software Features in Cisco IOS Release 12.3(21a)BC5
There are no new software features supported in Cisco IOS Release 12.3(21a)BC5.
New Hardware Features in Cisco IOS Release 12.3(23)BC
The following software features are new in Cisco IOS Release 12.3(21)BC:
DOCSIS Timing & Control Card (DTCC)
On the Cisco uBR10012 universal broadband router, the DOCSIS Timing & Control Card (DTCC) acts as a secondary processor that performs the following functions:
•
•
•
•
•
When two DTCC cards are installed, they are configured as active (primary) and backup (redundant). If the DTCC card in the first slot is working at system power-up, it automatically becomes the active card and the DTCC card in the second slot becomes the backup card. The DTCC cards monitor each other's priority information, so that if the active card fails, the active card role is transferred to the redundant backup card without loss of data.
Each DTCC card contains two RJ-45 connectors labeled Primary and Secondary, on the front panel. See Xref_Colorparanum[FC_FigureCap,FCW_FigureCapW]on page *. These connectors are for a primary and secondary (redundant) Stratum 3 external clock reference source that is traceable to a Stratum 1 clock source. The external reference source allows the Cisco uBR10012 router's reference clock to be synchronized to the Stratum 1 clock source, providing a free-running DOCSIS-quality clock reference and time stamp to the cable interface line cards.
If present, the primary DTI link is used. If it is lost, the secondary DTI link (if present) on the active DTCC card is used. If the active DTCC card stops functioning, control is transferred to the backup DTCC card, which then uses its primary and secondary clock reference sources. If neither card has a valid clock reference source, In DTI mode, all M-CMTS elements should have common timing source. The internal clock of DTI client cannot be used to provide DOCSIS clock and timestamp. High availability strategies (active/backup card, active/backup ports) should be used to prevent loss of common timing source.
New Software Features in Cisco IOS Release 12.3(23)BC
There are no new software features supported in Cisco IOS Release 12.3(23)BC.
New Hardware Features in Cisco IOS Release 12.3(21a)BC4
There are no new hardware features supported in Cisco IOS Release 12.3(21a)BC4.
New Software Features in Cisco IOS Release 12.3(21a)BC3
There are no new software features supported in Cisco IOS Release 12.3(21a)BC4.
New Hardware Features in Cisco IOS Release 12.3(21a)BC3
There are no new hardware features supported in Cisco IOS Release 12.3(21a)BC3.
New Software Features in Cisco IOS Release 12.3(21a)BC3
The following software features are new in Cisco IOS Release 12.3(21a)BC3:
Control Point Discovery (CPD)
The Control Point Discovery (CPD) can be used to discover the IP address of a control point between the requestor and a media endpoint. It can be used by CMS (call management server), DF (delivery function for CALEA), or PS (policy server for Packetcable multimedia) to discover the IP address of the CMTS connected to the media endpoint. The CMTS needs to interpret and respond to the CPD messages.
New Hardware Features in Cisco IOS Release 12.3(21a)BC2
There are no new hardware features supported in Cisco IOS Release 12.3(21a)BC2.
New Software Features in Cisco IOS Release 12.3(21a)BC2
There are no new software features supported in Cisco IOS Release 12.3(21a)BC2.
New Hardware Features in Cisco IOS Release 12.3(21a)BC1
There are no new hardware features supported in Cisco IOS Release 12.3(21a)BC1.
New Software Features in Cisco IOS Release 12.3(21a)BC1
There are no new software features supported in Cisco IOS Release 12.3(21a)BC1.
New Hardware Features in Cisco IOS Release 12.3(21)BC
There are no new hardware features supported in Cisco IOS Release 12.3(21)BC.
New Software Features in Cisco IOS Release 12.3(21)BC
The following software features are new in Cisco IOS Release 12.3(21)BC:
Automatic Virtual Interface Bundles
All cable bundles are now automatically converted and configured to be in a virtual bundle, and standalone cable interfaces must be manually configured to be in a virtual bundle to operate properly.
Previously, new virtual interface bundles and bundle members required reconfiguration, and there could also be standalone interfaces not part of a bundle at all.
The following guidelines describe the automatic virtual interface bundling:
•
•
•
•
•
•
•
•
•
•
For more information, see the "Cable Interface Bundling and Virtual Interface Bundling for the Cisco CMTS" chapter in the Cisco CMTS Feature Guide.
Cable DHCP Enhancements
When using an external DHCP server, the Cisco CMTS supports a number of options that can enhance operation of the cable network in certain applications.
Dynamic Cable Helper Address Selection
The cable helper-address command has been expanded to further specify where to forward DHCP packets based on origin: from a cable modem, MTA, STB, or other cable devices:
cable helper-address address [ cable-modem | host | mta | stb ]
This enables load-balancing of DHCP requests from cable modems and CPE devices by specifying different DHCP servers according to the cable interface or subinterface. You can also specify separate servers for cable modems and CPE devices.
When the mta or stb option is used, you must also use the cable dhcp-parse option-optnum command to parse the DHCP options.
If you specify only one option, the other types of devices (cable modem, host, mta, or stb) will not be able to connect with a DHCP server. You must specify each desired option in a separate command.
You may specify more than one helper address on each cable interface by repeating the command. You can specify more than 16 helper addresses, but the Cisco IOS software uses only the first 16 valid addresses.
If you do not specify an option, the helper-address will support all cable devices, and the associated DHCP server will accept DHCP packets from all cable device classes.
Cable Node Location Reporting
The DHCP Relay Agent can now be used to identify cloned modems or gather geographical information for E911 and other applications. Using the cable dhcp-insert command, users configure the CMTS to insert downstream, upstream, or hostname descriptors into DHCP packets:
cable dhcp-insert {downstream-description | hostname | upstream-description}
A DHCP server can then utilize such information to detect cloned modems or extract geographical information. Multiple types of strings can be configured as long as the maximum relay information option size is not exceeded.
Multiple types of descriptor strings can be configured as long as the maximum relay information option size is not exceeded.
show cable modem docsis device-class
The show cable modem docsis device-class command is now supported.
For more information on these enhancements and related commands, see the Cisco Broadband Cable Command Reference Guide and the "DHCP, ToD, and TFTP Services for the Cisco Cable Modem Termination System" chapter in the Cisco CMTS Feature Guide.
Cable Duplicate MAC Address Reject
Cisco IOS Release 12.3(21)BC introduces a DOCSIS 1.1-compliant and above security enhancement that helps to eliminate denial-of-service (DOS) attacks that are caused by cloned cable modems. A clone is presumed to be one of two physical cable modems on the same Cisco CMTS chassis with the same HFC interface MAC address. The cloned cable modem may be DOCSIS 1.0 or greater, and may be semi-compliant or non-compliant with portions of the DOCSIS specifications.
This feature is enabled by default on the Cisco CMTS, and has no associated command-line interface (CLI) configuration commands. This feature creates a new log message. By default, this message appears in the syslog, but may be moved into the cable layer2 event log using the configuration command cable logging layer2events.
For additional information about this feature, its causes, and the introduction of the new cable privacy bpi-plus-enforce command, which enforces DOCSIS 1.1 BPI+ on the cable network, refer to the following documents on Cisco.com and the Internet:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/cmtsfg.html
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http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html
PacketCable Client Accept Timeout
Cisco IOS Release 12.3(21)BC introduces support for setting timeout values for COPS Telnet connections on the Cisco CMTS, and for clearing COPS telnet sessions.
Network or Cisco CMTS telnet errors can cause incomplete COPS sessions to be created. This new timeout timer enables the clearing and cleaning of allocated resources for the stale COPS Telnet sessions on the Cisco CMTS. This feature supports COPS for PacketCable on the Cisco CMTS.
If the Connection between a PacketCable CMS and the Cisco CMTS is not completely established, and the PacketCable CMS does not correctly terminate the session by sending a TCP FIN message, the connection otherwise shows a COPS server in the output of the show cops server command.
The timeout timer applies to each COPS Telnet connection on the Cisco CMTS, and expiration of this timeout setting triggers the termination of the Telnet session and clears supporting resources on the Cisco CMTS.
To set the timeout timer for Telnet COPS sessions on the Cisco CMTS, use the following command in global configuration mode. To remove this timeout timer, use the no form of this command.
packetcable timer client-accept seconds
no packetcable timer client-accept seconds
Syntax Description
To clear all COPS Telnet sessions and associated resources on the Cisco CMTS, use the following command in global configuration mode:
clear cops connection
For additional information, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_pkcb.html.
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_cops.html
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http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html
Per Downstream Static Multicast
The IOS IGMP Static-Group feature was first introduced back in Release 11.2, while the Source Specific Multicast (SSM) extension was added in Release 12.0(6)T. This allows network administrators to configure the router to be a statically connected member of the specified group on the interface. All multicast traffic destined to that particular group will be forwarded out on that configured interface.
Beginning in Cisco IOS Release 12.3(21)B, the Cisco uBR10012 universal broadband router supports the Per Downstream Static Multicast feature. This feature provides several multicast enhancements and makes it possible to control the replication of static IP multicast streams within a cable bundle using the cable igmp static-group command on the physical cable downstream interface.
For additional information, refer to the following documents on Cisco.com:
Advanced-mode DOCSIS Set-Top Gateway 1.1 for the Cisco CMTS
http://www.cisco.com/en/US/docs/cable/cmts/feature/ubradsg.html
SAMIS Source Address Management
Cisco IOS Release 12.3(21)BC introduces Subscriber Account Management Interface Specification (SAMIS) enhancements which will provide the ability to set the source of the usage based billing packets originated by the router using the cable metering command. This enables the ip address to be set as the source of the loopback interface, similar to what is done for telnet or ftp (ip ftp source-interfacelo0).
For additional information about Subscriber Account Management Interface Specification (SAMIS), refer to the following document on Cisco.com:
http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide09186a00801ef1d7.html
Service Flow Admission Control
Cisco IOS Release 12.3(21)BC introduces Service Flow Admission Control (SFAC) on the Cisco Cable Modem Termination System.
SFAC on the Cisco CMTS is a mechanism that gracefully manages service flow admission requests when one or more resources are not available to process and support the incoming service request. Lack of such a mechanism not only causes the new request to fail with unexpected behavior but could potentially cause the flows that are in progress to have quality related problems. SFAC monitors such resources constantly, and accepts or denies requests depending on the resource availability.
SFAC enables you to provide a reasonable guarantee about the Quality of Service (QoS) to subscribers at the time of call admission, and to enable graceful degradation of services when resource consumption approaches critical levels. SFAC reduces the impact of unpredictable traffic demands in circumstances that would otherwise produce degraded QoS for subscribers.
SFAC uses two event types for resource monitoring and management—cable modem registration and dynamic service (voice call) requests. When either of these two events occurs on the Cisco CMTS, SFAC verifies that the associated resources conform to the configured limits prior to admitting and supporting the service call request.
SFAC is not a mechanism to apply QOS to the traffic flows. Scheduling and queuing are some of the mechanisms used for implementing the QOS. The QOS is applied on per packet basis. SFAC checks are performed before the flow is admitted.
SFAC in Cisco IOS Release 12.3(21)BC monitors the following resources on the Cisco CMTS.
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For complete configuration and operation information, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_sfac.html
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http://www.cisco.com/en/US/products/hw/cable/ps2217/prod_technical_reference_list.html
New Hardware Features in Cisco IOS Release 12.3(17b)BC9
There are no new hardware features supported in Cisco IOS Release 12.3(17b)BC9.
New Software Features in Cisco IOS Release 12.3(17b)BC9
There are no new software features supported in Cisco IOS Release 12.3(17b)BC9.
New Hardware Features in Cisco IOS Release 12.3(17b)BC8
There are no new hardware features supported in Cisco IOS Release 12.3(17b)BC8.
New Software Features in Cisco IOS Release 12.3(17b)BC8
There are no new software features supported in Cisco IOS Release 12.3(17b)BC8.
New Hardware Features in Cisco IOS Release 12.3(17b)BC7
There are no new hardware features supported in Cisco IOS Release 12.3(17b)BC7.
New Software Features in Cisco IOS Release 12.3(17b)BC7
There are no new software features supported in Cisco IOS Release 12.3(17b)BC7.
New Hardware Features in Cisco IOS Release 12.3(17b)BC6
There are no new hardware features supported in Cisco IOS Release 12.3(17b)BC6.
New Software Features in Cisco IOS Release 12.3(17b)BC6
There are no new software features supported in Cisco IOS Release 12.3(17b)BC6.
New Hardware Features in Cisco IOS Release 12.3(17b)BC5
There are no new hardware features supported in Cisco IOS Release 12.3(17b)BC5.
New Software Features in Cisco IOS Release 12.3(17b)BC5
There are no new software features supported in Cisco IOS Release 12.3(17b)BC5.
New Hardware Features in Cisco IOS Release 12.3(17b)BC4
There are no new hardware features supported in Cisco IOS Release 12.3(17b)BC4.
New Software Features in Cisco IOS Release 12.3(17b)BC4
Cisco IOS Release 12.3(17b)BC4 introduces the following new features or enhancements:
Downstream Load Balancing Distribution with Upstream Load Balancing
Cisco IOS Release 12.3(17b)BC4 introduces further enhancements to downstream load balancing, resulting in equalized upstream load balancing group members. This enhancement synchronizes the pending statistic between different cable interface line cards in the load balancing group.
This enhancement performs downstream load balancing that accounts for loads on upstream channels in the same upstream load balancing group, rather than on the basis of the entire downstream channel load. Prior Cisco IOS releases may not have distributed cable modems evenly over individual upstream channels, nor in a way that accounted for downstream and upstream segment loads that account for one another.
This enhancement applies when downstream load balancing occurs on a headend system with separate upstream load balancing segments; the upstream segments are spread over multiple downstreams segments. This enhancement provides an alternative downstream load balancing scheme that accounts and makes use of per-upstream loads rather than total downstream loads.
For additional information about Load Balancing on the Cisco CMTS, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/troubleshooting_batch9/cmtslbg.html.
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http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html
New Hardware Features in Cisco IOS Release 12.3(17b)BC3
There are no new hardware features supported in Cisco IOS Release 12.3(17b)BC3.
New Software Features in Cisco IOS Release 12.3(17b)BC3
There are no new software features supported in Cisco IOS Release 12.3(17b)BC3.
New Hardware Features in Cisco IOS Release 12.3(17a)BC2
There are no new hardware features supported in Cisco IOS Release 12.3(17a)BC2.
New Software Features in Cisco IOS Release 12.3(17a)BC2
Cisco IOS Release 12.3(17a)BC2 introduces the following new features or enhancements:
Advanced-Mode DOCSIS Set-Top Gateway Issue 1.2
Cisco IOS Release 12.3(17a)BC2 introduces certified support for DOCSIS Set-Top Gateway (DSG) Issue 1.2. Advanced-mode DSG Issue 1.2 introduces support for the latest DOCSIS Set-Top specification from CableLabs™:
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http://www.cablelabs.com/specifications/archives/CM-SP-DSG-I05-050812-Superseded.pdf
Advanced-mode DSG 1.2 is certified by CableLabs™, and is a powerful tool in support of latest industry innovations. Advanced-mode DSG 1.2 offers substantial support for enhanced DOCSIS implementation in the Broadband Cable environment. The set-top box dynamically learns the overall environment from the Cisco Cable Modem Termination System (CMTS), to include MAC address, traffic management rules, and classifiers. DSG 1.2 supports the DOCS-DSG-IF-MIB as one component of this functionality:
For additional information about this feature, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/ubrdsg12.html.
For additional information about the DOCS-DSG-IF-MIB, feature, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/products/hw/cable/ps2217/prod_technical_reference_list.html
DOCSIS1.0 ToS Overwrite
Currently, type-of-service (ToS) overwrite requires the creation of static cable quality if service (QoS) profiles, which are then assigned to the ToS fields. This implementation works well if only a few different service types are offered. However, scalability issues arise when large numbers of service types are presented; each requiring a static QoS profile in order to perform ToS overwrite.
The Default DOCSIS 1.0 ToS Overwrite feature eliminates the need to create multiple QoS profiles in order to perform ToS overwrite by automatically bounding all DOCSIS 1.0 Cable Modem (CM) created profiles to a default ToS overwrite.
New Hardware Features in Cisco IOS Release 12.3(17a)BC1
There are no new hardware features supported in Cisco IOS Release 12.3(17a)BC1:
New Software Features in Cisco IOS Release 12.3(17a)BC1
There are no new software features supported in Cisco IOS Release 12.3(17a)BC1.
New Hardware Features in Cisco IOS Release 12.3(17a)BC
There are no new hardware features supported in Cisco IOS Release 12.3(17a)BC.
New Software Features in Cisco OS Release 12.3(17a)BC
The Cisco IOS Release 12.3(17a)BC is the third major feature release in the Cisco 12.3 BC release train. This release introduces the following new features or enhancements:
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Cable Monitor Enhancements
Cisco IOS Release 12.3(17a)BC introduces the following enhancements to the cable monitor feature:
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For additional information about this enhancements to the cable monitor feature, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_cmon.html.
Configurable Leasequery Server
Previously, lease query requests could only be sent to the Dynamic Host Configuration Protocol (DHCP) server. Beginning with Cisco IOS Release 12.3(17a)BC, an alternate server may be configured to receive the requests.
There are a few restrictions:
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Regardless of which server is configured (DHCP or alternate), unknown IP addresses that are found in packets for customer premises equipment (CPE) devices that use the cable modems on the cable interface are verified. The DHCP server or configured alternate server returns a DHCP ACK message with the MAC address of the CPE device that has been assigned this IP address, if any.
To configure the Cisco CMTS router to send DHCP LEASEQUERY requests to an alternate server, use the cable source-verify dhcp server ipaddress and no cable arp commands. (To configure the DHCP server instead, use the cable source-verify dhcp and no cable arp commands.)
For additional information about this feature, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/cblsrcvy.html.
Dynamic Channel Change (DCC) for Load Balancing
Cisco IOS Release 12.3(17a)BC introduces Dynamic Channel Change (DCC) and DCC for Load Balancing on the Cisco CMTS.
DCC in DOCSIS 1.1 dynamically changes cable modem upstream or downstream channels without forcing a cable modem to go offline, and without re-registration after the change. DCC supports four different initializations, instead of one, as in earlier DOCSIS support.
DCC and DCC for load balancing is supported on the Cisco uBR7246VXR router with distributed cable interface line cards, including the Cisco MC28U and the Cisco MC5X20S/U/H.
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Dynamic Channel Change for Load Balancing entails the following new or enhanced commands in Cisco IOS Release 12.3(17a)BC, and later releases:
Global Configuration Commands
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Testing Command
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For configuration, command reference, testing, and examples for DCC on the Cisco CMTS, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/troubleshooting_batch9/cmtslbg.html.
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http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html
DOCSIS 2.0 SAMIS ECR Data Set
The Usage-Based Billing feature for the Cisco Cable Modem Termination System (CMTS) provides subscriber account and billing information in the Subscriber Account Management Interface Specification (SAMIS) format. The SAMIS format is specified by the Data-over-Cable Service Interface Specifications (DOCSIS) Operations Support System Interface (OSSI) specification.
Cisco IOS Release 12.3(17a)BC provides enhancements to the OSSI specifications, and billing reports (billing record format), added support to the CISCO-CABLE-METERING-MIB, which contains objects that provide subscriber account and billing information in the SAMIS format, added support for DCC and DCC for Load balancing and Downstream LLQ.
For additional information, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/ubrsamis.html.
DSX Messages and Synchronized PHS Information
Cisco IOS Release 12.3(17a)BC introduces support for payload header suppression (PHS) rules in a High Availability environment. In this release, and later releases, PHS rules synchronize and are supported during a switchover event of these types:
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For additional information about these enhancements, and related High Availability features, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/uFGnpls1.html.
High Availability Support for Encrypted IP Multicast
Cisco IOS Release 12.3(17a)BC introduces support for IP Multicast streams during switchover events in a High Availability environment. This feature is supported for Route Processor Redundancy Plus (RPR+), N+1 Redundancy, and encrypted Baseline Privacy Interface Plus (BPI+) streams.
For additional information about IP Multicast and High Availability, refer to these documents on Cisco.com:
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http://www.cisco.com/en/US/products/hw/cable/ps2217/prod_technical_reference_list.html
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http://www.cisco.com/en/US/docs/cable/cmts/feature/ubrdmic.html.
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http://www.cisco.com/en/US/tech/tk828/technologies_case_study0900aecd802e2ce2.shtml
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/uFGnpls1.html.
IPv6 over L2VPN
Beginning with Cisco IOS Release 12.3(17a)BC, the Cisco uBR7246VXR router now supports IPv6 using Layer 2 VPNs based on SID to 802.1q mapping. The Cisco uBR7246VXR router already supported Transparent LAN service with Layer 2 VPNs in Cisco IOS Release 12.3(13a)BC and later releases. As more Internet users switch to IPv6, the Cisco IPv6 protocol support helps enable the transition. IPv6 fixes a number of limitations in IPv4, such as limited numbers of available IPv4 addresses in addition to improved routing and network autoconfiguration. This feature allows customers to introduce IPv6 into their network with minimal operational impact.
For additional information about this feature, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/tech/tk872/tsd_technology_support_protocol_home.html
Management Information Base (MIB) Changes and Enhancements
MIB enhancements in Cisco IOS Release 12.3(17a)BC provide enhanced management features that enable the Cisco uBR 7246VXR router to be managed through the Simple Network Management Protocol (SNMP). These enhanced management features allow you to:
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For additional information about these MIB changes, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/products/hw/cable/ps2217/prod_technical_reference_list.html.
Pre-equalization Control for Cable Modems
Cisco IOS Release 12.3(17a)BC introduces pre-equalization control for cable modems on a per-modem basis. This feature enhances support for pre-equalization control on an interface basis with the Organizational Unique Identifier (OUI), which is also supported.
When pre-equalization is enabled on an upstream interface, this feature allows you to disable pre-equalization adjustment selectively, for a specific cable modem or a group of cable modems. This feature prevents cable modems from flapping when processing pre-equalization requests sent from the Cisco CMTS.
Restrictions
This feature observes the following restrictions in Cisco IOS Release 12.3(17a)BC:
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cable pre-equalization exclude
To exclude a cable modem from pre-equalization during registration with the Cisco CMTS, use the cable pre-equalization exclude command in global configuration mode. Exclusion is supported for a specified cable modem, or for a specified OUI value for the entire interface. To remove exclusion for the specified cable modem or interface, use the no form of this command. Removing this configuration returns the cable modem or interface to normal pre-equalization processes during cable modem registration.
cable pre-equalization exclude {oui | modem} mac-addr
no cable pre-equalization exclude {oui | modem} mac-addr
Syntax Description
Command Default
Pre-equalization is enabled by default on the Cisco router, and for cable modems that have a valid and operational DOCSIS configuration file. When enabled, pre-equalization sends ranging messages for the respective cable modems. When disabled with the new exclude command, pre-equalization is excluded for the respective cable modems.
Command Modes
Global configuration mode
Command History
12.3(17a)BC
This command was introduced to the Cisco uBR10012 router and the Cisco uBR7246VXR router.
Usage Guidelines
The pre-equalization exclusion feature should be configured for the running configuration of the Network Processing Engine (NPE), the Performance Routing Engine (PRE), and the line card console.
Examples
The following example configures pre-equalization to be excluded for the specified cable modem. Pre-equalization data is not sent for the corresponding cable modem:
Router(config)# cable pre-equalization exclude modem mac-addrThe following example configures pre-equalization to be excluded for the specified OUI value of the entire interface. Pre-equalization data is not sent for the corresponding OUI value of the entire interface:
Router(config)# cable pre-equalization exclude oui mac-addrThe following series of commands configures pre-equalization on the Cisco uBR7246VXR router with MC5X20U BPEs. On the PRE Console, configure the following commands.
Router# conf tEnter configuration commands, one per line. End with CNTL/Z.Router(config)# cable pre-equalization exclude oui 00.09.04Router(config)# endRouter# show runRouter# show running-config | inc ouicable pre-equalization exclude oui 00.09.04On the line card console for the same Cisco uBR7246VXR router, verify the configuration with the following command:
Router# show running-config | inc ouicable pre-equalization exclude oui 00.09.04The following example removes pre-equalization exclusion for the specified OUI and interface. This results in the cable modem or OUI to return to normal pre-equalization functions. Ranging messages resume sending pre-equalization data.
Router(config)# no cable pre-equalization exclude { oui | modem } mac-addrRemoval of this feature can be verified with the following debug command:
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For additional information about this feature, refer to the following documents on Cisco.com:
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show cable modem Command Changes
Cisco IOS Release 12.3(17a)BC introduces changes for two versions of the show cable modem command.
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The information displayed with this command is revised. The DOCSIS 2.0 column in the quality of service (QoS) Provision Mode field has been removed, as this field is not applicable to QoS provisioning in DOCSIS 2.0.
Command Output in Cisco IOS Release 12.3(17a)BC and Later Releases
Router# show cable modem mac summaryCable Modem Summary-------------------Mac Version QoS Provision ModeInterface Total DOC2.0 DOC1.1 DOC1.0 Reg/Online DOC1.1 DOC1.0Cable5/1/0/U0 10 0 2 8 10 0 10Command Output in Cisco IOS Release 12.3(13a)BC and Earlier Releases
Router# show cable modem mac summaryCable Modem Summary-------------------Mac Version QoS Provision ModeInterface Total DOC2.0 DOC1.1 DOC1.0 Reg/Online DOC2.0 DOC1.1 DOC1.0Cable8/0/0/U0 8 0 5 3 5 0 5 0•
The information displayed with this command is revised. The MicroReflec column (MicroReflections) has been removed, and the DOCSIS Prov (DOCSIS Provider) column has been added in its place. This new column contains DOCSIS version information.
Command Output in Cisco IOS Release 12.3(17a)BC and Later Releases
Router# show cable modem phyMAC Address I/F Sid USPwr USSNR Timing DSPwr DSSNR Mode DOCSIS(dBmV) (dB) Offset (dBmV) (dB) Prov0003.e350.9a3f C5/1/0/U0 1 0.00 30.23 2811 0.00 ----- tdma 1.00050.734e.c1a1 C5/1/0/U0 2 0.00 30.47 2811 0.00 ----- tdma 1.00007.0e01.1749 C5/1/0/U0 3 0.00 30.65 2808 0.00 ----- tdma 1.00007.0e00.90dd C5/1/0/U0 4 0.00 30.66 2806 0.00 ----- tdma 1.00003.e350.9ad3 C5/1/0/U0 5 0.00 30.47 2810 0.00 ----- tdma 1.00003.e38f.f4e5 C5/1/0/U0 6 0.00 30.36 2813 0.00 ----- tdma 1.00003.e350.9b97 C5/1/0/U0 7 0.00 30.44 2812 0.00 ----- tdma 1.00003.e350.9bed C5/1/0/U0 8 0.00 30.16 2814 0.00 ----- tdma 1.00003.e308.455d C5/1/0/U0 9 0.00 30.79 2811 0.00 ----- tdma 1.00003.6bd6.bfaf C5/1/0/U0 10 0.00 30.40 2813 0.00 ----- tdma 1.0Command Output in Cisco IOS Release 12.3(13a)BC and Earlier Releases
Router# show cable modem phyMAC Address I/F Sid USPwr USSNR Timing MicroReflec DSPwr DSSNR Mode(dBmV) (dB) Offset (dBc) (dBmV) (dB)0008.0e06.7b14 C8/0/0/U0 1 0.00 30.36 1938 0 0.00 ----- tdma0050.f112.5977 C8/0/0/U0 2 0.00 30.36 1695 0 0.00 ----- tdma0090.837b.b0b9 C8/0/0/U0 3 0.00 30.64 1187 0 0.00 ----- tdma0007.0e03.6e99 C8/0/0/U0 5 0.00 30.36 2747 0 0.00 ----- tdma0007.0e04.5091 C8/0/0/U0 6 0.00 30.94 2746 0 0.00 ----- tdma0006.5314.81d9 C8/0/0/U0 7 0.00 30.36 2745 0 0.00 ----- tdma0003.6b1b.ee63 C8/0/0/U0 8 0.00 31.26 2745 0 0.00 ----- tdma0030.eb15.84e7 C8/0/0/U0 12 0.00 30.36 1157 0 0.00 ----- tdmaFor additional information about either of these commands, refer to the following document on Cisco.com
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http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html
New Hardware Features in Cisco IOS Release 12.3(13a)BC6
There are no new hardware features supported in Cisco IOS Release 12.3(13a)BC6.
New Software Features in Cisco IOS Release 12.3(13a)BC6
There are no new software features supported in Cisco IOS Release 12.3(13a)BC6.
New Hardware Features in Cisco IOS Release 12.3(13a)BC5
There are no new hardware features supported in Cisco IOS Release 12.3(13a)BC5.
New Software Features in Cisco IOS Release 12.3(13a)BC5
There are no new software features supported in Cisco IOS Release 12.3(13a)BC5.
New Hardware Features in Cisco IOS Release 12.3(13a)BC4
There are no new hardware features supported in Cisco IOS Release 12.3(13a)BC4.
New Software Features in Cisco IOS Release 12.3(13a)BC4
There are no new software features supported in Cisco IOS Release 12.3(13a)BC4.
New Hardware Features in Cisco IOS Release 12.3(13a)BC3
There are no new hardware features supported in Cisco IOS Release 12.3(13a)BC3.
New Software Features in Cisco IOS Release 12.3(13a)BC3
There are no new software features supported in Cisco IOS Release 12.3(13a)BC3.
New Hardware Features in Cisco IOS Release 12.3(13a)BC2
There are no new hardware features supported in Cisco IOS Release 12.3(13a)BC2.
New Software Features in Cisco IOS Release 12.3(13a)BC2
There are no new software features supported in Cisco IOS Release 12.3(13a)BC2.
New Hardware Features in Cisco IOS Release 12.3(13a)BC1
There are no new hardware features supported in Cisco IOS Release 12.3(13a)BC1.
New Software Features in Cisco IOS Release 12.3(13a)BC1
There are no new software features supported in Cisco IOS Release 12.3(13a)BC1.
New Hardware Features in Cisco IOS Release 12.3(13a)BC
There are no new hardware features supported in Cisco IOS Release 12.3(13a)BC.
New Software Features in Cisco IOS Release 12.3(13a)BC
The Cisco IOS Release 12.3(13a)BC is the second major feature release in the Cisco 12.3BC release train. This release introduces the following new features or enhancements on the Cisco uBR7200 series routers:
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Access Control List Support for COPS Intercept
Cisco IOS Release 12.3(13a)BC introduces enhanced command-line interface for the Common Open Policy Service (COPS) feature.
To configure access control lists (ACLs) for inbound connections to all COPS listener applications on the Cisco CMTS, user the cops listeners access-list command in global configuration mode. To remove this setting from the Cisco CMTS, us the no form of this command.
cops listeners access-list {acl-num | acl-name}
no cops listeners access-list {acl-num | acl-name}
Syntax Description
Additional Information
For additional information, see the "Service Independent Intercept (SII) Support on the Cisco uBR7200 Series" section.
For additional information, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_cops.html.
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_cmon.html.
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_pkcb.html.
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http://www.cisco.com/en/US/products/hw/cable/ps2217/products_white_paper09186a0080179138.shtml
Admission Control for the Cisco CMTS
Admission Control for the Cisco Cable Modem Termination System (CMTS) is a multifaceted feature that implements a Quality of Service (QoS) policy on the CMTS Headend. Admission Control establishes efficient resource and bandwidth utilization in a way that was not possible in prior Cisco IOS releases.
Admission Control monitors multiple system-level resources on the Cisco CMTS, and performs automatic resource allocation on a service-request basis. Admission Control maintains optimal system-level operation by preventing resource consumption that would otherwise degrade the performance for the entire Cisco CMTS. Furthermore, Admission Control can allocate upstream or downstream bandwidth resources to specific DOCSIS traffic types, and maintain such prioritization amidst very dynamic traffic conditions.
Admission Control uses two event types for resource monitoring and management—cable modem registration and dynamic service (voice call) requests. When either of these two events occurs on the Cisco CMTS, Admission Control verifies that the associated resources conform to the configured limits prior to admitting and supporting the service call request.
Admission Control is not a mechanism to apply QOS to the traffic flows. Scheduling and queuing are some of the mechanisms used for implementing the QOS. The QOS is applied on per packet basis. Admission Control checks are performed before the flow is committed.
Admission Control in Cisco IOS Release 12.3(13)BC monitors the following resources on the Cisco CMTS.
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Cisco IOS Release 12.3(13a)BC introduces new configuration, debug and show commands for Admission Control on the Cisco CMTS. For additional information, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_adm.html.
Advanced-Mode DOCSIS Set-Top Gateway Issue 1.1
Cisco IOS Release 12.3(13a)BC introduces support for DOCSIS Set-Top Gateway (DSG) Issue 1.1 on the Cisco uBR7246VXR router. DOCSIS Set-Top Gateway (DSG) 1.1 introduces Advanced mode DSG functionality based on Cablelabs specification CM-SP-DSG-I03-041124.
DSG 1.1 introduces support for several DOCSIS 1.1 networks and their multiple service operators (MSOs):
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These powerful advantages maximize the performance and return of hybrid fiber-coaxial (HFC) plant investments.
Changes from Cisco DSG 1.0
DSG Issue 1.0 is oriented to the DOCSIS DSG-I01 specifications, while DSG Issue 1.1 is oriented towards DOCSIS DSG-I02 specifications, to include the new Advanced Mode DSG (A-DSG).
The following DSG 1.1 features are supported in Cisco IOS Release 12.3(13a)BC while continuing support for Basic Mode DSG:
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Unlike earlier issues of DSG, Advanced-mode DSG (A-DSG) uses a DOCSIS MAC Management Message called the Downstream Channel Descriptor (DCD) message, and this DCD message manages the DSG Tunnel traffic. The DCD message is sent once per second on each downstream and is used by the DSG Client to determine which tunnel and classifier to use.
The DCD has a DSG address table located in the DOCSIS MAC management message. The primary difference between DSG 1.0 (and earlier issues) and A-DSG 1.1 is that advanced mode uses DCD messages to manage the DSG tunnels.
The DCD message contains a group of DSG Rules and DSG Classifiers, including the following:
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Prerequisites for DSG 1.1
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Restrictions and Caveats for DSG 1.1
Cisco DSG 1.1 has the following restrictions:
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Additional Information about DSG 1.1
For additional information, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide09186a0080459fc8.html
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http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide09186a00802065c8.html
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http://www.cisco.com/en/US/products/hw/cable/ps2217/products_white_paper09186a00801b3f0f.shtml
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http://www.cablelabs.com/specifications/archives/CM-SP-DSG-I03-041124-superseded.pdf
Cable Monitor Support for Cisco MC28U Broadband Processing Engines
Cisco IOS Release 12.3(13a)BC introduces support for the Cisco MC28U Broadband Processing Engines for the Cisco uBR7246VXR routers. This feature enables intercept and monitoring capabilities for DOCSIS-compliant frames. The Cable Monitor and Intercept features for Cisco Cable Modem Termination System (CMTS) routers provide a software solution for monitoring and intercepting traffic coming from a cable network. This feature also gives service providers Lawful Intercept capabilities, such as those required by the Communications Assistance for Law Enforcement Act (CALEA).
Note
The Cable Monitor and Intercept features for Cisco Cable Modem Termination System (CMTS) routers provide a software solution for monitoring and intercepting traffic coming from a cable network that is based on monitoring and intercepting of DOCSIS frames. This feature can be used for Lawful Intercept capabilities, such as those required by the Communications Assistance for Law Enforcement Act (CALEA).
To enable the forwarding of selected packets on the cable interface to an external LAN analyzer, use the cable monitor command in cable interface configuration mode. To disable this function, use the no form of this command.
cable monitor [incoming | outbound] [timestamp]
interface interface {access-list {name | number} | mac-address address | sid sid-number} [packet-type {data docsis | data ethernet | mac [type type] } ]
no cable monitor
Syntax Description
The following example configures cable monitor for the specified interface and the associated MAC address:
Router(config)# interface Cable3/0Router(config-if)# cable monitor interface GigabitEthernet0/1mac-address 000e.5cc8.fa5fpacket-type data ethernetRouter(config-if)#mac-address 000e.5cac.59f8packet-type data ethernetTo display cable monitor configuration and status information, use the show interfaces command in Privileged EXEC mode:
Router# show interfaces cable 3/0 monitorUS/ Time Outbound Flow Flow Type Flow Packet MAC MAC EncapDS Stmp Interface Type Identifier Extn. Type Extn. Type Typeall no Gi0/1 mac-addr 000e.5cc8.fa5f yes data no - ethernetall no Gi0/1 mac-addr 000e.5cac.59f8 yes data no - ethernetTo display and monitor traffic statistics and counters over time, use the show cable modem counters and the show interfaces commands in Privileged EXEC mode, as illustrated:
Router# show interfaces cable 3/0 monitorUS/ Time Outbound Flow Flow Type Flow Packet MAC MAC EncapDS Stmp Interface Type Identifier Extn. Type Extn. Type Typeall no Gi0/1 mac-addr 000e.5cc8.fa5f yes data no - ethernetall no Gi0/1 mac-addr 000e.5cac.59f8 yes data no - ethernetRouter# show cable modem 000e.5cac.59f8 countersMAC Address US Packets US Bytes DS Packets DS Bytes000e.5cac.59f8 7537986 3828867645 7199188 3711248288Router# show interfaces GigabitEthernet 0/1GigabitEthernet0/1 is up, line protocol is upHardware is BCM1250 Internal MAC, address is 000e.d6bd.2001 (bia 000e.d6bd.2001)Description: ***Sonde_analyse_trafic***Internet address is 82.216.52.1/30MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,reliability 255/255, txload 1/255, rxload 1/255Encapsulation ARPA, loopback not setKeepalive set (10 sec)Full-duplex, 100Mb/s, media type is RJ45output flow-control is XON, input flow-control is XONARP type: ARPA, ARP Timeout 04:00:00Last input 00:00:08, output 00:00:01, output hang neverLast clearing of "show interface" counters neverInput queue: 0/75/5/0 (size/max/drops/flushes); Total output drops:361Queueing strategy: fifoOutput queue: 0/40 (size/max)5 minute input rate 0 bits/sec, 0 packets/sec5 minute output rate 0 bits/sec, 0 packets/sec1094862 packets input, 70425672 bytes, 0 no bufferReceived 0 broadcasts, 5 runts, 0 giants, 0 throttles0 input errors, 10 CRC, 0 frame, 0 overrun, 0 ignored0 watchdog, 37 multicast, 0 pause input0 input packets with dribble condition detected188665 packets output, 29355747 bytes, 0 underruns <<< 188665 packets0 output errors, 0 collisions, 6 interface resets0 babbles, 0 late collision, 0 deferred12 lost carrier, 0 no carrier, 0 pause output0 output buffer failures, 0 output buffers swapped outWhen cable monitor is active, counters for the above commands should increase over time. For additional information about cable monitoring on the Cisco CMTS, refer to these documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_cmon.html.
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http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html.
COPS TCP Support for the Cisco Cable Modem Termination System
Cisco IOS Release 12.3(13a)BC introduces optimized support for the Common Open Policy Service (COPS) feature for the Cisco uBR7200 series router. This feature supports two new configuration commands for enabling and setting COPS processes. The COPS feature in Cisco IOS Release 12.3(13a)BC enables the following COPS functions:
COPS DSCP Marking for the Cisco CMTS
This feature allows you to change the DSCP marking for COPS messages that are transmitted or received by the Cisco router. Differentiated Services Code Point (DSCP) values are used in Quality of Service (QoS) configurations on a Cisco router. DSCP summarizes the relationship between DSCP and IP precedence.
Cisco IOS Release 12.3(13a)BC supports this function with the cops ip dscp command in global configuration mode.
COPS TCP Window Size for the Cisco CMTS
This feature allows you to override the default TCP receive window size that is used by COPS processes. This setting can be used to prevent the COPS server from sending too much data at one time.
Cisco IOS Release 12.3(13a)BC supports this function with the cops tcp window-size command in global configuration mode.
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cops ip dscp
To specify the marking for COPS messages that are transmitted by the Cisco router, use the cops ip dscp command in global configuration mode. To remove this configuration, use the no form of this command.
cops ip dscp x
no cops ip dscp
Syntax Description
Defaults
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Usage Guidelines
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Examples
The following example illustrates the cops ip dscp command with supported command variations:
Router(config)# cops ip dscp ?<0-63> DSCP valueaf11 Use AF11 dscp (001010)af12 Use AF12 dscp (001100)af13 Use AF13 dscp (001110)af21 Use AF21 dscp (010010)af22 Use AF22 dscp (010100)af23 Use AF23 dscp (010110)af31 Use AF31 dscp (011010)af32 Use AF32 dscp (011100)af33 Use AF33 dscp (011110)af41 Use AF41 dscp (100010)af42 Use AF42 dscp (100100)af43 Use AF43 dscp (100110)cs1 Use CS1 dscp (001000) [precedence 1]cs2 Use CS2 dscp (010000) [precedence 2]cs3 Use CS3 dscp (011000) [precedence 3]cs4 Use CS4 dscp (100000) [precedence 4]cs5 Use CS5 dscp (101000) [precedence 5]cs6 Use CS6 dscp (110000) [precedence 6]cs7 Use CS7 dscp (111000) [precedence 7]default Use default dscp (000000)ef Use EF dscp (101110)Additional COPS Information
Cisco IOS Release 12.3(13a)BC also supports Access Control Lists (ACLs) for use with COPS. Refer to the "Access Control List Support for COPS Intercept" section.
For additional information about configuring COPS on the Cisco CMTS, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_cops.html.
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_cmon.html.
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cops tcp window-size
To override the default TCP receive window size on the Cisco CMTS, use the cops tcp window-size command in global configuration mode. This setting allows you to prevent the COPS server from sending too much data at one time. To return the TCP window size to a default setting of 4K, use the no form of this command.
cops tcp window-size bytes
no cops tcp window-size
Syntax Description
Defaults
The default COPS TCP window size is 4000 bytes.
Usage Guidelines
This command does not affect existing connections to COPS servers. Once you issue this command, this function is supported only for new connections after that point in time.
Examples
The following example configures the TCP window size to be 64000 bytes.
Router(config)# cops tcp window-size 64000The following example illustrates online help for this command:
Router(config)# cops tcp window-size ?<516-65535> Size in bytesAdditional COPS Information
Cisco IOS Release 12.3(13a)BC also supports Access Control Lists (ACLs) for use with COPS. Refer to the "Access Control List Support for COPS Intercept" section.
For additional information about configuring COPS on the Cisco CMTS, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_cmon.html.
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DOCSIS 1.0 Concatenation Override Featurette
Cisco IOS Release 12.3(13a)BC introduces support for the DOCSIS 1.0 concatenation override feature on the Cisco uBR7200 router. This feature provides the ability to disable concatenation on DOCSIS 1.0 cable modems, even in circumstances where concatenation is otherwise supported for the upstream channel.
DOCSIS 1.0 concatenation allows the cable modem to make a single-time slice request for multiple packets, and to send all packets in a single large burst on the upstream. Concatenation was introduced in the upstream receive driver in the previous Cisco IOS releases that supported DOCSIS 1.0 +. Per-SID counters were later added in Cisco IOS Release 12.1(4)CX for debugging concatenation activity.
In some circumstances, overriding concatenation on DOCSIS 1.0 cable modems may be preferable, and Cisco IOS Release 12.3(13a)BC supports either option.
Note
To enable DOCSIS 1.0 concatenation override with Cisco IOS Release 12.3(13a)BC and later releases, use the new docsis10 keyword with the previously supported cable upstream <n> concatenation command in privileged EXEC mode:
cable upstream <n> concatenation docsis10
Syntax Description
n
Specifies the upstream port number. Valid values start with 0 for the first upstream port on the cable interface line card.
Examples
The following example illustrates DOCSIS 1.0 concatenation override on the Cisco uBR7246VXR router:
Router# no cable upstream 0 concatenation docsis10In this example, DOCSIS 1.0 cable modems are updated with REG-RSP so that they are not permitted to use concatenation.
For additional information about this command, refer to the following document on Cisco.com:
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Dynamic SID/VRF Mapping Support
Cisco IOS Release 12.3(13a)BC introduces support for dynamic service ID (SID) and VRF mapping on the Cisco CMTS, to support VoIP with MPLS. Formerly, the MPLS SID mapping feature only applied to provisioned service flows. This feature enables the mapping of all PacketCable DQoS service flows to one particular VRF.
For additional information about dynamic SID to VRF mapping, refer to the following document on Cisco.com:
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Enhanced Rate Bandwidth Allocation (ERBA) Support for DOCSIS 1.0 Cable Modems
Cisco IOS Release 12.3(13a)BC introduces Enhanced Rate Bandwidth Allocation (ERBA) support for DOCSIS 1.0 cable modems and the Cisco uBR7200 series router. ERBA allows DOCSIS1.0 modems to burst their temporary transmission rate up to the full line rate for short durations of time. This capability provides higher bandwidth for instantaneous bandwidth requests, such as those in Internet downloads, without having to make changes to existing service levels in the QoS Profile.
This feature enables MSOs to set the DOCSIS 1.0 cable modems burst transmissions, with mapping to overriding DOCSIS 1.1 QoS profile parameters on the Cisco CMTS. DOCSIS 1.0 cable modems require DOCSIS 1.0 parameters when registering to a matching QoS profile. This feature enables maximum downstream line rates, and the ERBA setting applies to all cable modems that register to the corresponding QoS profile.
Note
ERBA for DOCSIS 1.0 cable modems is supported with these new or enhanced commands or keywords in Cisco IOS Release 12.3(13a)BC:
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To define ERBA on the downstream for DOCSIS 1.0 cable modems, use the cable qos promax-ds-burst command in global configuration mode. To remove this ERBA setting from the QoS profile, use the no form of this command.
cable qos pro max-ds-burst burst-size
no cable qos pro max-ds-burst
Syntax Description
To display ERBA settings as applied to DOCSIS 1.0 cable modems and QoS profiles on the Cisco CMTS, use the show cable qos profile command in Privileged EXEC mode.
The following example of the cable qos profile command in global configuration mode illustrates changes to the cable qos profile command. Fields relating to the ERBA feature are shown in bold for illustration:
Router(config)# cable qos pro 10 ?grant-interval Grant intervalgrant-size Grant sizeguaranteed-upstream Guaranteed Upstreammax-burst Max Upstream Tx Burstmax-ds-burst Max Downstream Tx burst (cisco specific)max-downstream Max Downstreammax-upstream Max Upstreamname QoS Profile name string (cisco specific)priority Priorityprivacy Cable Baseline Privacy Enabletos-overwrite Overwrite TOS byte by setting mask bits to valueThe following example of the show cable qos profile command illustrates that the maximum downstream burst has been defined, and is a management-created QoS profile:
Router# show cable qos proID Prio Max Guarantee Max Max TOS TOS Create B IP prec.upstream upstream downstream tx mask value by priv ratebandwidth bandwidth bandwidth burst enab enab1 0 0 0 0 0 0xFF 0x0 cmts(r) no no2 0 64000 0 1000000 0 0xFF 0x0 cmts(r) no no3 7 31200 31200 0 0 0xFF 0x0 cmts yes no4 7 87200 87200 0 0 0xFF 0x0 cmts yes no6 1 90000 0 90000 1522 0xFF 0x0 mgmt yes no10 1 90000 0 90000 1522 0x1 0xA0 mgmt no no50 0 0 0 96000 0 0xFF 0x0 mgmt no no51 0 0 0 97000 0 0xFF 0x0 mgmt no noThe following example illustrates the maximum downstream burst size in sample QoS profile 10 with the show cable qos prof verbose command in privileged EXEC mode:
Router# show cable qos pro 10 verProfile Index 10NameUpstream Traffic Priority 1Upstream Maximum Rate (bps) 90000Upstream Guaranteed Rate (bps) 0Unsolicited Grant Size (bytes) 0Unsolicited Grant Interval (usecs) 0Upstream Maximum Transmit Burst (bytes) 1522Downstreamam Maximum Transmit Burst (bytes) 100000IP Type of Service Overwrite Mask 0x1IP Type of Service Overwrite Value 0xA0Downstream Maximum Rate (bps) 90000Created By mgmtBaseline Privacy Enabled noUsage Guidelines
If a cable modem registers with a QoS profile that matches one of the existing QoS profiles on the Cisco CMTS, then the maximum downstream burst size, as defined for that profile, is used instead of the default DOCSIS QoS profile of 1522.
For example, a DOCSIS 1.0 configuration that matches QoS profile 10 in the previous examples would be as follows:
03 (Net Access Control) = 104 (Class of Service Encodings Block)S01 (Class ID) = 1S02 (Maximum DS rate) = 90000S03 (Maximum US rate) = 90000S06 (US burst) = 1522S04 (US Channel Priority) = 1S07 (Privacy Enable) = 0The maximum downstream burst size (as well as the ToS overwrite values) are not explicitly defined in the QoS configuration file because they are not defined in DOCSIS. However, because all other parameters are a perfect match to profile 10 in this example, then any cable modem that registers with these QoS parameters has a maximum downstream burst of 100000 bytes applied to it.
For further illustration, consider a scenario in which packets are set in lengths of 1000 bytes at 100 packets per second (pps). Therefore, the total rate is a multiplied total of 1000, 100, and 8, or 800kbps.
To change these settings, two or more traffic profiles are defined, with differing downstream QoS settings as desired. Table 6 provides two examples of such QoS profiles for illustration:
In this scenario, both QoS profiles are identical except for the max-ds-burst size, which is set to 5000 in QoS profile 101 and 5000 in QoS profile 102.
Optimal Settings for DOCSIS 1.0 Downstream Powerburst
DOCSIS allows the setting different token bucket parameters for each service flow, including the token bucket burst size. When burst sizes are closer to 0, QoS is enforced in a stricter manner, allowing a more predictable sharing of network resources, and as a result easier network planning.
When burst sizes are larger, individual flows can transmit information faster (lower latency), although the latency variance can be larger as well.
For individual flows, a larger burst size is likely to be better. As long as the system is not congested, a large burst size reduces the chances of two flows transmitting at the same time, because each burst is likely to take less time to transmit. However, as channel bandwidth consumption increases, it is probably that large burst traffic would exceed the thresholds of buffer depths, and latency is longer than with well shaped traffic.
For additional information about the cable qos profile command and configuring QoS profiles, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html.
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_docs.html.
High Availability Features in Cisco IOS Release 12.3(13a)BC
Cisco IOS Release 12.3(13a)BC removes support for HCCP N+1 Redundancy on the Cisco uBR7200 series routers. Associated configuration, show, and debug commands are not supported in this release.
Note
HCCP N+1 Redundancy for the Cisco CMTS is described for earlier releases in this and additional documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/uFGnpls1.html.
Multicast QoS Support
Cisco IOS Release 12.3(13a)BC introduces support for Multicast downstream QoS feature. This feature provides the ability to assign static mapping to a multicast group. The Multicast downstream QoS feature uses the existing infrastructure (DOCSIS 1.1 service flow) to assign a multicast service identifier (SID) to a multicast group used in the Baseline Privacy Interface (BPI) encryption feature.
When disabled, the Multicast downstream QoS feature does not impact any other features. The multicast packets to downstream cable interfaces are sent to the default service flow.
This feature is being implemented in response to CSCeg22989 which states, multicast traffic is not classified to any service flow, and therefore ends up queued on the default service flow. The default service flow has no specific QoS guarantees assigned to it. So once the interface approaches congestion level, multicast packets may be dropped.
Restrictions
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New and Changed Commands
cable match address
Use the existing "cable match" command to assign QoS to a multicast group, with BPI either enabled or disabled.
Router# cable match address <number>|<name> [service-class <name> [bpi-enable]]Router# no cable match address [<number>|<name> [service-class <name> [bpi-enable]]]debug cable mcast-qos
Use this command to turn on CMTS Multicast Qos debugging.
router# debug cable mcast-qosMLPPP Support
The Cisco IOS Multilink Point-to-Point Protocol (MLPPP) feature is now supported for selected line cards and port adapters on the Cisco uBR7200 series. There is no new hardware or software for MLPPP in this release.
Note
MLPPP is configured not on a cable interface, but on the T1/E1 link.
Line Cards and Port Adapters Supporting MLPPP on the Cisco uBR7200 Series
Table 7 lists the line cards and port adapters on the Cisco uBR7200 series, in conjunction with the applicable network processing engine (NPE), that are supported for MLPPP at the time Cisco IOS Release 12.3(13a)BC was released.
PacketCable Multimedia
Cisco IOS Release 12.3(13a)BC introduces support for PacketCable Multimedia (PCMM) on the Cisco uBR7200 universal broadband router, and supports the CableLabs PacketCable Multimedia Specification, PKT-SP-MM-I02-040930. As described by CableLabs, some key features of the PCMM service delivery framework include the following:
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Packet Cable Multimedia functionality on the Cisco CMTS enables Cable Operators to offer multimedia services over their cable networks by harnessing the power of Dynamic QoS (DQoS). When used in conjunction with compliant Policy Servers and Application Managers, PCMM gives operators the means of tailoring their networks to accomplish these advantages:
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PCMM on the Cisco CMTS enhances several basic PacketCable functions, including the following:
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PCMM differs in that each gate is now unidirectional, and is associated with only one service flow. As a result, the gate info element structure in PCMM differs significantly from that of PacketCable. PCMM only needs to maintain one set of service flow information, rather than maintaining both upstream and downstream information as does PacketCable.
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For additional information about PacketCable and PacketCable Multimedia on the Cisco CMTS, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_pkcb.html.
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http://www.cisco.com/en/US/products/hw/cable/ps2217/products_white_paper09186a0080179138.shtml
"PacketCable is a CableLabs®-led initiative that is aimed at developing interoperable interface specifications for delivering advanced, real-time multimedia services over two-way cable plant. Built on top of the industry's highly successful cable modem infrastructure, PacketCable networks use Internet protocol (IP) technology to enable a wide range of multimedia services, such as IP telephony, multimedia conferencing, interactive gaming, and general multimedia applications." (PacketCable.com)
CableLabs® describes key features of the PacketCable Multimedia IP service delivery framework as follows:
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PacketCable™ is a registered trademark of CableLabs®. Additional information and specifications are available online at the following CableLabs websites:
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http://www.packetcable.com/specifications/multimedia.html
Service Independent Intercept (SII) Support on the Cisco uBR7200 Series
The Cisco CMTS supports the Communications Assistance for Law Enforcement Act (CALEA) for voice and data. Cisco IOS Release 12.3(13a)BC introduces support for Service Independent Intercept (SII) on the Cisco uBR7200 CMTS. Cisco SII provides a more robust level of the lawful intercept (LI) options offered in the Packet Intercept feature. Cisco SII is the next level of support for judicially authorized electronic intercept, to include dial access, mobile wireless, tunneled traffic, and Resilient Transport Protocol (RTP) for voice and data traffic on the Cisco CMTS.
SII on the Cisco CMTS in Cisco IOS Release 12.3(13a)BC includes these functions:
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Note
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Cisco IOS Release 12.3(13a)BC enables full Multiple Service Operator (MSO) compliance with SII and LI regulations. Service providers worldwide are legally required to allow government agencies to conduct surveillance on the service provider's traditional telephony equipment. The objective of the SII feature is to enable service providers with New World networks that legally allow government agencies to conduct electronic network surveillance.
Lawful Intercept (LI) describes the process and judicial authority by which law enforcement agencies conduct electronic surveillance of circuit and packet-mode communications. LI is authorized by judicial or administrative order and implemented for either voice or data traffic on the Cisco CMTS.
Table 8 lists the differences between packet intercept and SII features
Additional Information
For additional information, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_pkcb.html.
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http://www.cisco.com/en/US/products/hw/cable/ps2217/products_white_paper09186a0080179138.shtml
Optional Upstream Scheduler Modes
With this feature, the user is able to select either Unsolicited Grant Services (UGS) or Real Time Polling Service (rtPS) scheduling types, as well as packet-based or TDM-based scheduling. Low latency queueing (LLQ) emulates a packet-mode-like operation over the Time Division Multiplex (TDM) infrastructure of DOCSIS. As such, the feature provides the typical trade-off between packets and TDM: with LLQ, the user has more flexibility in defining service parameters for UGS or rtPS, but with no guarantee (other than statistical distribution) regarding parameters such as delay and jitter.
Restrictions
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cable upstream n scheduling type
Use this new command to turn the various scheduling modes on or off, where n specifies the upstream port.
Router(config-if)# [no] cable upstream n scheduling type [ugs | rtps] mode [llq | docsis]For additional information about scheduler enhancements on the Cisco CMTS, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/cmtsfg.html.
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/cmtsfg.html.
Transparent LAN Service and Layer 2 Virtual Private Networks
Cisco IOS Release 12.3(13a)BC introduces the following changes or requirements for the TLS feature with Layer 2 VPNs:
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Note
Refer to the following documents on Cisco.com for additional TLS information:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/tls-cmts.html.
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Virtual Interface Bundling on the Cisco uBR-MC28/U BPE
Cisco IOS Release 12.3(13a)BC introduces support for virtual interface bundling on the Cisco uBR72046VXR universal broadband router and the Cisco uBR-MC28/U Broadband Processing Engine (BPE).
In prior Cisco IOS releases, cable interface bundling was limited to physical interfaces as master or slave interfaces, and show commands did not supply bundle information.
Virtual interface bundling removes the prior concepts of master and slave interfaces, and introduces these additional changes:
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Virtual interface bundling prevents loss of connectivity on physical interfaces should there be a failure, problematic online insertion and removal (OIR) of one line card in the bundle, or erroneous removal of configuration on the master interface.
Virtual interface bundling supports and governs the following Layer 3 settings for the bundle member interfaces:
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Note
For configuration, examples, and general guidelines for virtual interface bundling on the Cisco CMTS, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/tls-cmts.html.
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http://www.cisco.com/en/US/tech/tk86/tk804/technologies_white_paper09186a0080232b49.shtml
New Hardware Features in Cisco IOS Release 12.3(9a)BC8
There are no new hardware features supported in Cisco IOS Release 12.3(9a)BC8.
New Software Features in Cisco IOS Release 12.3(9a)BC8
There are no new software features supported in Cisco IOS Release 12.3(9a)BC8.
New Hardware Features in Cisco IOS Release 12.3(9a)BC7
There are no new hardware features supported in Cisco IOS Release 12.3(9a)BC7.
New Software Features in Cisco IOS Release 12.3(9a)BC7
There are no new software features supported in Cisco IOS Release 12.3(9a)BC7.
New Hardware Features in Cisco IOS Release 12.3(9a)BC6
There are no new hardware features supported in Cisco IOS Release 12.3(9a)BC6.
New Software Features in Cisco IOS Release 12.3(9a)BC6
There are no new software features supported in Cisco IOS Release 12.3(9a)BC6.
New Hardware Features in Cisco IOS Release 12.3(9a)BC5
There are no new hardware features supported in Cisco IOS Release 12.3(9a)BC5.
New Software Features in Cisco IOS Release 12.3(9a)BC5
There are no new software features supported in Cisco IOS Release 12.3(9a)BC5.
New Hardware Features in Cisco IOS Release 12.3(9a)BC4
There are no new hardware features supported in Cisco IOS Release 12.3(9a)BC4.
New Software Features in Cisco IOS Release 12.3(9a)BC4
There are no new software features supported in Cisco IOS Release 12.3(9a)BC4.
New Hardware Features in Cisco IOS Release 12.3(9a)BC3
There are no new hardware features supported in Cisco IOS Release 12.3(9a)BC3.
New Software Features in Cisco IOS Release 12.3(9a)BC3
There are no new software features supported in Cisco IOS Release 12.3(9a)BC3.
New Hardware Features in Cisco IOS Release 12.3(9a)BC2
There are no new hardware features supported in Cisco IOS Release 12.3(9a)BC2.
New Software Features in Cisco IOS Release 12.3(9a)BC2
There are no new software features supported in Cisco IOS Release 12.3(9a)BC2.
New Hardware Features in Cisco IOS Release 12.3(9a)BC1
There are no new hardware features supported in Cisco IOS Release 12.3(9a)BC1.
New Software Features in Cisco IOS Release 12.3(9a)BC1
There are no new software features supported in Cisco IOS Release 12.3(9a)BC1.
New Hardware Features in Cisco IOS Release 12.3(9a)BC
There are no new hardware features in Cisco IOS Release 12.3(9a)BC.
New Software Features for Cisco IOS Release 12.3(9a)BC
This section describes the following new software features and CLI command changes for Cisco IOS Release 12.3(9a)BC and the Cisco uBR7246VXR router:
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Cable ARP Filter Enhancement
The cable arp filter command, introduced with Cisco IOS Release 12.2(15)BC2b, enables service providers to filter ARP request and reply packets. This prevents a large volume of such packets from interfering with the other traffic on the cable network.
Cisco IOS Release 12.3(9a)BC introduces enhanced command option syntax for the cable arp filter command, where number and window-size values are optional for reply-accept and request-send settings.
To control the number of Address Resolution Protocol (ARP) packets that are allowable for each Service ID (SID) on a cable interface, use the cable arp command in cable interface configuration mode. To stop the filtering of ARP broadcasts for CMs, use the no form of this command.
cable arp filter {reply-accept number window-size | request-send number window-size}
no cable arp filter {reply-accept | request-send}
default cable arp filter {reply-accept | request-send}
Syntax Description
Cisco IOS Release 12.3(9a)BC also removes a prior caveat with HCCP Protect interfaces. Previously, in the event of a revert-back HCCP N+1 switchover, manual removal of cable arp filter reply and cable arp filter request configurations may have been required afterward on Protect interfaces.
For more information about ARP Filtering, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/cblarpfl.html.
Cisco Broadband Troubleshooter (CBT) 3.2
Multiple Service Operators (MSOs) provide a variety of services such as TV, video on demand, data, and voice telephony to subscribers. Cable companies provide a variety of services such as TV, video on demand, data, and voice telephony to subscribers. Network Administrators and radio frequency (RF) technicians need specialized tools to resolve RF problems in the cable plant. Cisco Broadband Troubleshooter 3.2 (CBT 3.2) is a simple, easy-to-use tool designed to accurately recognize and resolve such issues.
Cisco IOS Release 12.3(9a)BC enhances support for the Cisco Broadband Troubleshooter (CBT) Version 3.2 on the Cisco uBR7246VXR universal broadband, with newly supported interoperability for the following additional software features:
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CBT 3.2 offers the following enhancements on the Cisco uBR7246VXR router:
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Formerly, trace windows could support the selection of up to three upstream or cable modems, but the upstream(s) and cable modems could not be mixed. CBT 3.2 now supports three upstreams or cable modems to be selected and mixed in the trace window.
For additional information about CBT 3.2, spectrum management and STM 1.1, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/products/sw/netmgtsw/ps530/prod_release_notes_list.html.
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_spec.html.
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http://www.cisco.com/en/US/docs/cable/cmts/feature/ubsubmon.html.
Cisco CMTS Static CPE Override
The cable submgmt default command enables Multiple Service Operators (MSOs) to override network DHCP settings on CPE devices when performing troubleshooting with a laptop computer and console connection to the Cisco universal broadband router.
For additional information about using the cable submgmt default command, refer to these documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/stat_cpe.html.
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http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html.
Cisco DDC (Dual DOCSIS Channel)
The Cisco Dual DOCSIS Channel (DDC) feature provides redundancy to cable voice and data customers by using two or three CMTSs with connected RF upstreams and downstreams. Redundancy is provided by controlling each CMTS on which the cable modems register, and by allowing movement of the cable modems between the Cisco CMTS systems.
Cisco DDC provides redundancy during planned downtime, especially during software upgrades, with minimal configuration or control external to the Cisco CMTS.
For information about configuring, maintaining and troubleshooting DDC on the Cisco uBR7246VXR router, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/docs_DDC.html.
Cisco IOS Release 12.3(9a)BC Command-Line Interface (CLI) Enhancements
Cisco IOS Release 12.3(9a)BC supports the following new or enhanced command-line interface:
For additional information about these command changes, refer to these resources:
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http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html.
DOCSIS Set-top Gateway (DSG) 1.0
The following DSG 1.0 features were added for multiple Cisco CMTS platforms:
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For additional information about configuring and using DSG 1.0 on the Cisco uBR7246VXR router, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide09186a00802065c8.html.
Dynamic Shared Secret (DMIC) with OUI Exclusion for DOCSIS
Cisco IOS Release 12.3(9a)BC introduces the option of excluding the Organizational Unique Identifiers (OUIs) from being subjected to the DMIC check. The new cable dynamic-secret exclude command allow specific cable modems to be excluded from the Dynamic Shared Secret feature on the following Cisco CMTS platforms:
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The Dynamic Shared Secret feature automatically creates a unique DOCSIS shared secret on a per-modem basis, creating a one-time use DOCSIS configuration file that is valid only for the current session. This ensures that a DOCSIS configuration file that has been downloaded for one cable modem can never be used by any other modem, nor can the same modem reuse this configuration file at a later time.
This patent-pending feature is designed to guarantee that all registered modems are using only the quality of service (QoS) parameters that have been specified by the DOCSIS provisioning system for that particular modem at the time of its registration.
For additional command information, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/ubrdmic.html.
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http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html.
MIBs Changes and Updates in Cisco IOS Release 12.3(9a)BC
Cisco IOS Release 12.3(9a)BC adds the following new MIB support for the Cisco uBR7246VXR router.
For additional information about MIBs for the Cisco CMTS, refer to the following resources on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/mib/reference/guide/ubrmib3.html.
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http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?local=en.
CISCO-CABLE-QOS-MONITOR MIB
Cisco IOS Release 12.3(9a)BC introduces additional features for the CISCO-CABLE-QOS-MONITOR MIB, including the following:
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CISCO-CABLE-SPECTRUM-MIB
Cisco IOS Release 12.3(9) introduces support for the CISCO-CABLE-SPECTRUM-MIB on the Cisco uBR7246VXR universal broadband router, with these additional MIB object enhancements:
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The following objects are also now deprecated:
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The maximum number of entries in the flap-list was changed from a maximum of 8191 for the entire router, to the following:
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Two objects are now used to track the flap list size:
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CISCO-PROCESS-MIB
The CISCO-PROCESS-MIB enables you to monitor CPU and memory utilization for RF cards, cable interface line cards and broadband processing engines on the Cisco CMTS. This information is collected via SNMP.
DOCS-IF-MIB
The DOCS-IF-MIB (released as RFC 2670) has been updated to conform to the version 5 of the DOCSIS 2.0 RF MIB Specification (draft-ietf-ipcdn-docs-rfmibv2-05.txt).
DOCS-QOS-MIB
Cisco IOS Release 12.3(9a)BC introduces additional MIB object enhancements for the DOCS-QOS-MIB on the Cisco uBR7246VXR routers:
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DSG-IF-MIB
The DSG-IF-MIB defines objects that are used to configure, control, and monitor the operation of the DOCSIS Set-top Gateway (DSG) 1.0 feature on Cisco uBR7200 series routers.
Note
MIB Constraints
The DSG-IF-MIB has the following constraints:
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Load Balancing Support
Cisco IOS Release 12.3(9a)BC introduces support for Load Balancing on the Cisco uBR7246VXR router. The Load Balancing feature allows system operators to distribute cable modems across radio frequency (RF) downstreams and upstreams, to maximize bandwidth and usage of the cable plant.
The Load Balancing feature allows service providers to optimally use both downstream and upstream bandwidth, enabling the deployment of new, high-speed services such as voice and video services. This feature also can help reduce network congestion due to the uneven distribution of cable modems across the cable network and due to different usage patterns of individual customers.
By default, the Cisco CMTS platforms use a form of load balancing that attempts to equally distribute the cable modems to different upstreams when the cable modems register. You can refine this form of load balancing by imposing a limit on the number of cable modems that can register on any particular upstream, using the cable upstream admission-control command.
However, this default form of load balancing affects the cable modems only when they initially register with the Cisco CMTS. It does not dynamically rebalance the cable modems at later times, such as when they might change upstream channels in response to RF noise problems, or when bandwidth conditions change rapidly because of real-time traffic such as Voice over IP (VoIP) and video services. It also does not affect how the cable modems are distributed among downstream channels.
For additional information about configuring Load Balancing on the Cisco CMTS, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/troubleshooting_batch9/cmtslbg.html.
Spectrum Management Enhancements in Cisco IOS Release 12.3(9a)BC
Cisco IOS Release 12.3(9a)BC introduces enhancements to spectrum management for the Cisco uBR7246VXR router:
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For additional information about CBT 3.2, spectrum management and STM 1.1, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/products/sw/netmgtsw/ps530/prod_release_notes_list.html.
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http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_spec.html.
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http://www.cisco.com/en/US/docs/cable/cmts/feature/ubsubmon.html.
Subscriber Traffic Management (STM) Version 1.1
Cisco IOS Release 12.3(9a)BC introduces support for Subscriber Traffic Management (STM) Version 1.1 with the Cisco Broadband Troubleshooter (CBT) Version 3.2 on the Cisco uBR7246VXR universal broadband router.
STM 1.1 extends earlier STM functions to monitor a subscriber's traffic on DOCSIS 1.1 primary service flows and supports these additional features:
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For additional information about STM 1.1 and Cisco CBT 3.2, refer to the following documents on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/ubsubmon.html.
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hhttp://www.cisco.com/en/US/products/sw/netmgtsw/ps530/prod_release_notes_list.html.
Transparent LAN Services (TLS) and L2 Tunneling ATM/SIDs
Cisco IOS Release 12.3(9a)BC introduces support for the Transparent LAN Service over Cable feature on the Cisco uBR7246VXR router. This feature enhances existing Wide Area Network (WAN) support to provide more flexible Managed Access for multiple Internet service provider (ISP) support over a hybrid fiber-coaxial (HFC) cable network.
This feature allows service providers to create a Layer 2 tunnel by mapping an upstream service identifier (SID) to an ATM permanent virtual connection (PVC) or a Virtual Local Area Network (VLAN).
For additional information about configuring TLS on the Cisco uBR7246VXR router, refer to the following document on Cisco.com:
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Usage Based Billing (SAMIS)
Cisco IOS Release 12.3(9a)BC introduces the Usage-Based Billing feature on the Cisco uBR7246VXR universal broadband router. This feature provides subscriber account and billing information in the Subscriber Account Management Interface Specification (SAMIS) format. SAMIS is specified by the Data-over-Cable Service Interface Specifications (DOCSIS) Operations Support System Interface (OSSI) specification.
For additional information about configuring and monitoring Usage-Based Billing (SAMIS) on the Cisco uBR7246VXR CMTS, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/docs/cable/cmts/feature/ubrsamis.html.
Virtual Interface Support and Frequency Stacking Support
Cisco IOS Release 12.3(9a)BC supports virtual interfaces and frequency stacking on the Cisco uBR7246VXR router. Virtual interfaces allows a DS interface to be configured with up to 8 USs. Frequency stacking allows two frequencies to be configured on one physical connector.
For additional information about frequency stacking and virtual interfaces on the Cisco uBR7246VXR router, refer to the following document on Cisco.com:
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http://www.cisco.com/en/US/tech/tk86/tk804/technologies_white_paper09186a0080232b49.shtml.
MIBs
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:
http://tools.cisco.com/ITDIT/MIBS/servlet/index
If Cisco MIB Locator does not support the MIB information that you need, you can also obtain a list of supported MIBs and download MIBs from the Cisco MIBs page at the following URL:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml
To access Cisco MIB Locator, you must have an account on Cisco.com. If you have forgotten or lost your account information, send a blank e-mail to cco-locksmith@cisco.com. An automatic check will verify that your e-mail address is registered with Cisco.com. If the check is successful, account details with a new random password will be e-mailed to you. Qualified users can establish an account on Cisco.com by following the directions found at this URL:
http://tools.cisco.com/RPF/register/register.do
MIB Changes and Enhancements for Cisco IOS Release 12.3(17a)BC:
MIB enhancements in Cisco IOS Release 12.3(17a)BC provide enhanced management features that enable the Cisco uBR 7200 Series router to be managed through the Simple Network Management Protocol (SNMP). These enhanced management features allow you to:
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To access the Cisco CMTS Universal Broadband Router MIB Specifications Guide, go to:
http://www.cisco.com/en/US/products/hw/cable/ps2217/prod_technical_reference_list.html.
Important Notes
The following sections contain important notes about Cisco IOS Release 12.3(23)BC6 that apply to Cisco uBR7200 series universal broadband routers.
How to Upgrade to Cisco IOS Release 12.3(21)BC
In circumstances in which non-volatile memory (NVRAM) becomes corrupted on the Cisco CMTS, configurations and feature behavior may become corrupted or lost, looping behavior in NVRAM may result, and additional measures to resolve corrupted NVRAM and lost configurations would be required.
This issue can be generated by upgrading to later Cisco IOS releases from prior Cisco IOS releases that do not contain resolution to a specific and known issue. This issue is not limited to Cisco IOS releases installed on the Cisco universal broadband routers.
Symptoms of Corrupted NVRAM
This issue is displayed with the following symptoms in the case of the Cisco CMTS:
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This error message is displayed either when the router boots, or when you enter one of the following commands:
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Conditions of Corrupted NVRAM
This symptom is observed under the following conditions:
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When upgrading to Cisco IOS Release 12.3(21)BC, the following upgrade procedure prevents corruption to NVRAM, retains configurations made in earlier releases, and successfully installs Cisco IOS Release 12.3(21)BC images. This procedure is subject to the feature restrictions and prerequisites of Cisco IOS Release 12.3(21)BC, described in these release notes.
Prerequisites
Cisco strongly recommends that you back up your configuration files prior to performing this upgrade, or any upgrade.
SUMMARY STEPS
Perform these steps to upgrade to Cisco IOS 12.3(21)BC, after TFTP file transfer operations are complete.
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DETAILED STEPS
New Command Information for Cisco IOS Release 12.3(21)BC3
Cisco IOS Release 12.3(21)BC introduces support and modifications to the following commands for Cisco Cable Modem Termination System (CMTS) universal broadband routers.
Refer to the following sections for more information:
controller modular-cable
To enter controller configuration mode to configure the Cisco 1-Gbps Wideband SPA controller, use the controller modular-cable command in global configuration mode.
controller modular-cable slot/subslot/bay
Syntax Description
Defaults
No Wideband SPA controller is configured.
Command Modes
Global configuration mode.
Command History
12.3(21)BC
This command was introduced on the Cisco uBR10012 universal broadband router.
Usage Guidelines
This command indicates where the Wideband SPA that will be configured is located and enters controller configuration mode.
Examples
The following example shows how to enter controller configuration mode for the Wideband SPA in slot 1, subslot 0, and bay 0.
Router# configure terminalRouter(config)# controller modular-cable 1/0/0Router(config-controller)#Router#Related Commands
clear cable modem reset
To remove one or more CMs from the Station Maintenance List and reset them, use the clear cable modem reset command in privileged EXEC mode.
clear cable modem {mac-addr | ip-addr | [cable slot/port] {all | oui string | reject} } reset
clear cable modem {mac-addr | ip-addr | [cable slot/subslot/port] {all | oui string | reject | wideband registered-traditional-docsis} } reset
Syntax Description
Defaults
No default behavior or values
Command Modes
Privileged EXEC
Command History
Usage Guidelines
This command instructs the Cisco CMTS to stop sending DOCSIS station maintenance messages to one or more CMs, which effectively terminates the link to those CMs. A CM responds to this by resetting itself. Depending on when the CM received the last station maintenance message, it can take up to 30 seconds before the CM detects the missing station maintenance messages and resets itself.
In some circumstances, the customer premises equipment (CPE) devices behind a CM stops receiving traffic after the CM is reset. This is because the CMTS still has the CPE device listed in its address tables, but the CM does not after being reset, so the traffic passes through the CMTS but is dropped by the CM. To resolve this situation, the CPE device should simply send some type of traffic to the CM, such as a ping packet. (You can also resolve this situation by using the clear arp-cache command on the Cisco CMTS router to clear the router's address table, but this is not recommended, because it temporarily interrupts all traffic on the router.)
Note
Caution
Tip
Examples
The following example shows how to reset the CM at 172.23.45.67:
Router# clear cable modem 172.23.45.67 resetRouter#The following example shows how to reset all CMs that have a OUI that has been defined as having the vendor name of Cisco using the cable modem vendor command:
Router# clear cable modem oui Cisco resetRouter#The following example shows how to reset all CMs that are currently in one of the reject states:
Router# clear cable modem reject resetRouter#The following example shows how to reset all wideband CMs that are registered as traditional DOCSIS modems.:
Router# clear cable modem wideband registered-traditional-docsis resetMAC Address IP Address I/F MAC Prim BG DSID MD-DS-SGState Sid ID0018.6852.825c 80.18.0.9 C5/0/0/U0 online 1 0 256 N/A0018.6852.8286 80.18.0.10 C5/0/0/U0 online 2 0 264 N/A0016.92fb.55be 80.18.0.7 C5/0/0/U0 online 3 0 288 N/A0016.92f0.9104 80.18.0.5 C5/0/0/U0 online 4 0 280 N/A0016.92fb.55c0 80.18.0.6 C5/0/0/U0 online 5 0 272 N/ARouter#
Related Commands
hw-module shutdown
To shut down a particular Performance Routing Engine (PRE1) module, line card, Wideband SIP or Wideband SPA, use the hw-module shutdown command in global configuration mode. To activate a specific PRE1, line card, Wideband SIP or Wideband SPA, use the no form of this command.
hw-module {main-cpu | pre {A|B} | sec-cpu | slot slot-number | subslot slot/subslot |
bay slot/subslot/bay} shutdown [unpowered]no hw-module {main-cpu | pre {A|B} | sec-cpu | slot slot-number | subslot slot/subslot |
bay slot/subslot/bay} shutdownSyntax Description
Defaults
No default behavior or values
Command Modes
Global configuration
Command History
12.2(4)XF
This command was introduced for the Cisco uBR10012 router.
12.3(21)BC
Support was added for the Cisco Wideband SIP and Cisco 1-Gbps Wideband SPA.
Usage Guidelines
The hw-module shutdown command shuts down a particular Performance Routing Engine (PRE1) module, line card, Wideband SIP or Wideband SPA. To activate a specific PRE1, line card, Wideband SIP, or Wideband SPA, use the no form of this command.
Caution
Examples
The following example shows the standby PRE1 module being shut down:
Router(config)# hw-module sec-cpu shutdownRouter(config)#The following example shows the active PRE1 module being shut down (which will trigger a switchover to the standby PRE1 module):
Router(config)# hw-module main-cpu shutdownRouter(config)#The following example shows the PRE1 module in PRE1 slot B being shut down:
Router(config)# hw-module pre B shutdownRouter(config)#
Note
The following example shows how to deactivate and verify deactivation for the Cisco Wideband SPA located in slot 1, subslot 0, bay 0. In the output of the show hw-module bay oir command, notice the "admin down" in the Operational Status field.
Router# configure terminalRouter(config)# hw-module bay 1/0/0 shutdown unpowered%SPAWBCMTS-4-SFP_MISSING: Wideband-Cable 1/0/0, 1000BASE-SX SFP missing from port 0%LINK-3-UPDOWN: Interface Wideband-Cable1/0/0:1, changed state to down%LINK-3-UPDOWN: Interface Wideband-Cable1/0/0:2, changed state to down%LINK-3-UPDOWN: Interface Wideband-Cable1/0/0:3, changed state to down%LINK-3-UPDOWN: Interface Wideband-Cable1/0/0:4, changed state to down%LINK-3-UPDOWN: Interface Wideband-Cable1/0/0:5, changed state to down%LINK-3-UPDOWN: Interface Wideband-Cable1/0/0:6, changed state to down%LINK-3-UPDOWN: Interface Wideband-Cable1/0/0:7, changed state to down%LINK-3-UPDOWN: Interface Wideband-Cable1/0/0:8, changed state to down%LINK-3-UPDOWN: Interface Wideband-Cable1/0/0:9, changed state to down%LINK-3-UPDOWN: Interface Wideband-Cable1/0/0:10, changed state to down%LINK-3-UPDOWN: Interface Wideband-Cable1/0/0:11, changed state to down...Router# show hw-module bay 1/0/0 oirModule Model
Guest
