Table Of Contents
Cross-Platform Release Notes for Cisco Universal Broadband Routers in Cisco IOS Release 12.2SC
Memory Requirements for the Cisco uBR7200 Series Universal Broadband Routers
Memory Requirements for the Cisco uBR10012 Universal Broadband Router
Cable Interface Line Cards Supported
Cisco uBR7200 Series Universal Broadband Router Port Adapters Supported
Cisco uBR10012 Universal Broadband Router Line Cards Supported
Determining the Software Version
Upgrading to a New Software Release
Shared Port Adapter FPD Image Packages for the Cisco uBR10012
Upgrading from PRE2 to PRE4 Processorsr
Upgrading to Cisco IOS Release 12.2(33)SCA on a Cisco uBR7246VXR Universal Broadband Router
Upgrading to Cisco IOS Release 12.2(33)SCA on a Cisco uBR10012 Universal Broadband Router
Upgrading from ESR-PRE1 to ESR-PRE2 Processors
Upgrading from Cisco IOS Release 12.3BC or Earlier Cisco IOS Software Release
New Hardware Features in Cisco IOS Release 12.2(33)SCB3
New Hardware Features in Cisco IOS Release 12.2(33)SCB2
New Hardware Features in Cisco IOS Release 12.2(33)SCB1
New Hardware Features in Cisco IOS Release 12.2(33)SCB
Cisco 10000 Series SPA Interface Processor-600 Support
Cisco 10000 Series Performance Routing Engine 4
Copper SFP Support for HHGE on the Cisco uBR10012 Router
DOCSIS Timing & Control Card (DTCC)
NPE-G2 Processor on the Cisco uBR7225VXR Router
New Hardware Features in Cisco IOS Release 12.2(33)SCA2
New Hardware Features in Cisco IOS Release 12.2(33)SCA1
New Hardware Features in Cisco IOS Release 12.2(33)SCA
Cisco uBR7246VXR Support in Cisco IOS Release 12.2(33)SCA
Cisco uBR7225VXR Support in Cisco IOS Release 12.2(33)SCA
Cisco uBR10012 Support in Cisco IOS Release 12.2(33)SCA
Cisco Wideband SIP and Cisco Wideband SPA
1-Port 10 Gigabit Ethernet Shared Port Adapter, LANPHY XFP Optics
5-Port Gigabit Ethernet Shared Port Adapter
New Software Features in Cisco IOS Release 12.2(33)SCB3
ISSU - In Service Software Upgrade
New Software Features in Cisco IOS Release 12.2(33)SCB2
New Software Features in Cisco IOS Release 12.2(33)SCB1
DOCSIS 3.0 Downstream Peak Traffic Rate TLV Support for ERBA
RCC Spanning Across Multiple SPAs for VDOC Broadcast
SAMIS CLC-RP Traffic Throttling
Service Disruption during ISSU
New Software Features in Cisco IOS Release 12.2(33)SCB
Bypass the 24 Hour Timer for WB CM Use of Failed RF Channels
DOCSIS 3.0 Downstream Bonding for Bronze Certification
Dynamic Service Transaction ID Allocation
IGMP-Triggered VDOC Broadcast Support
IP SLAs Additional Threshold Traps
IP SLAs--Proactive Threshold Monitoring of IP SLAs Operations
IP SLAs--Analyzing IP Service Levels Using the UDP Jitter Operation
IP SLAs--Analyzing VoIP Service Levels Using the UDP Jitter Operation
IP SLAs--Analyzing IP Service Levels Using the TCP Connect Operation
IP SLAs--Proactive Threshold Monitoring of IP SLAs Operations
IP SLAs--Multioperation Scheduling of IP SLAs Operations
IP SLAs -- Analyzing IP Service Levels Using the ICMP Path Echo Operation
IP SLAs -- Analyzing IP Service Levels Using the HTTP Operation
IP SLAs -- Analyzing IP Service levels Using the FTP Operation
IP SLAs -- Analyzing IP Service Levels Using the DNS Operation
IP SLAs - Distribution of Statistics
IP SLAs -- Analyzing IP Service Levels Using the DHCP Operation
ISSU - In Service Software Upgrade
Line Card High Availability (HA) Support for WB Cable Modems
Load Balancing Prohibition Based on Group Policy ID
MxN MAC Domain DS Load Balancing
Onboard Failure Logging (OBFL)
PXF Divert Rate Limit Enhancements
RSVP-Based Video on Demand Support over DOCSIS
Subscriber Management Packet Filtering for DOCSIS 2.0
Subscriber ID Support for Packetcable
Subscriber Traffic Management Version 1.2
Upstream Utilization Optimization
New Software Features in Cisco IOS Release 12.2(33)SCA2
New Software Features in Cisco IOS Release 12.2(33)SCA1
New Software Features in Cisco IOS Release 12.2(33)SCA
DHCPv6 Relay Agent Notification for Prefix Delegation
Multicast VPN and DOCSIS 3.0 Multicast QoS support
Service Independent Intercept on the Cisco CMTS
New and Changed MIB Information in Cisco IOS Release 12.2(33)SCB
New and Changed MIB Information in Cisco IOS Release 12.2(33)SCA
Important Changes in Cisco IOS Release 12.2SC
Command-Line Interface Changes and Notes.
Cisco uBR7200 Series Universal Broadband Routers Documents
Cisco uBR10012 Universal Broadband Router Documents
Other Universal Broadband Router Documentation
Cisco IOS Software Documentation Set
Cisco IOS Release 12.2 Documentation Set Contents
Obtaining Documentation and Submitting a Service Request
Cross-Platform Release Notes for Cisco Universal Broadband Routers in Cisco IOS Release 12.2SC
May 26, 2009
OL-15873-07
These release notes describe information about support for the Cisco Universal Broadband Routers in Cisco IOS Release 12.2SC, up to and including Cisco IOS Release 12.2(33)SCB. Cisco IOS Release 12.2(33)SCB is based on Cisco IOS Releases 12.2(33)SCA and 12.3(23)BC1, while introducing several other new hardware and software features for the CMTS router platforms. These release notes describe the enhancements provided in Cisco IOS Release 12.2(33)SCB3. These release notes are updated as needed.
For an additional list of the feature information and software caveats that apply to Cisco IOS Release 12.2(33)SCB, use these release notes with the following documents located on Cisco.com:
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Caveats for the Cisco uBR10012 Universal Broadband Router in Cisco IOS Release 12.2SC
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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/customer/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
This document includes the following sections:
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Inheritance Information
This section describes the related Cisco IOS software releases that are part of the Cisco IOS Release 12.2SC train.
SCA-based releases
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SCB-based releases
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All features in the above releases are in Cisco IOS Release 12.2(33)SCB. For more information, see the "Feature Support" section.
Introduction
For information on new features and Cisco IOS commands supported by Cisco IOS Release 12.2SC, see the "New and Changed Information" section and the "Related Documentation" section.
System Requirements
This section describes the system requirements for Cisco IOS Release 12.2(33)SCB and includes the following sections:
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Memory Requirements
This section describes the memory requirements for Cisco IOS Release 12.2(33)SC and includes the following sections:
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Note
Memory Requirements for the Cisco uBR7200 Series Universal Broadband Routers
Table 1 displays the memory recommendations of the Cisco IOS feature sets for the Cisco uBR7200 series universal broadband routers for Cisco IOS Release 12.2SC. Cisco uBR7200 series routers are only available with 48 MB or 128 MB of Flash disk memory on the I/O Controller cards. The UBR7200-NPE-G1 and NPE-G2 use Compact Flash Disks only.
Note
The image subset legend for Table 1 is as follows:
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Memory Requirements for the Cisco uBR10012 Universal Broadband Router
Table 2 displays the memory recommendations of the Cisco IOS feature sets for the Cisco uBR10012 universal broadband router for Cisco IOS Release 12.2SC.
Table 2 Memory Recommendations for the Cisco uBR10012 Router, Cisco IOS Release 12.2SC Feature Sets
Flash Memory
DRAM Memory1
FromDOCSIS Base 3 DES image and Lawful Intercept for Cisco PRE-2
PRE2
ubr10k2-k9p6u2-mz
48 MB
1.0 GB
RAM
DOCSIS Base 3 DES image and Lawful Intercept for Cisco PRE-4
PRE4
ubr10k4-k9p6u2-mz
48 MB
1.0 GB
RAM
1 DRAM memory is not configurable on the Cisco uBR10012 router.
Hardware Supported
Cisco IOS Release 12.2SC supports the hardware detailed in the following sections:
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Platforms Supported
Table 3 provides information about the CMTS router platforms and processors supported in Cisco IOS Release 12.2SC.
Cable Interface Line Cards Supported
Table 4 provides information about the cable interface line cards supported in Cisco IOS Release 12.2SC.
OIR of Cable Interface Line Cards
The Cisco uBR7200 series and Cisco uBR10012 universal broadband routers both support OIR of cable interface line cards, but have different requirements. The following sections describe this support for each of the platforms.
OIR of Cable Interface Line Cards on the Cisco uBR7200 Series Universal Broadband Routers
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 linecards of the exact same type (for example, exchanging a Cisco uBR-MC28U card for another Cisco uBR-MC28U line card). Under these conditions, no reload of the router is required.
Caution
Note
OIR of Cable Interface Line Cards on the Cisco uBR10012 Universal Broadband Router
To perform an OIR of cable interface line cards on the Cisco uBR10012 router, follow these steps:
Step 1
Router(config)# cr10k card 8/0 oir-compatibilityThis command helps preserve the configuration and performs some internal synchronization to make sure that the OIR runs successfully.
Step 2
Router# copy running-config startup-configStep 3
Router# cable power off 8/0Line Card 8/0 is POWERED OFFThis powers off the line card gracefully.Step 4
For more information about preventing electrostatic discharge (ESD) damage, refer to the document at:
http://www.cisco.com/warp/public/109/cable-linecard-handling.pdf
Step 5
Step 6
Step 7
Router# cable power on 8/0Step 8
Router# show interface cable 8/0/0Cable8/0/0 is up, line protocol is upHardware is BCM3210 ASIC, address is 000a.13e8.1ca8 (bia 000a.13e8.1a60)Internet address is 10.1.1.3/24MTU 1500 bytes, BW 27000 Kbit, DLY 1000 usec, rely 255/255, load 1/255Encapsulation, loopback not set, keepalive not setARP type: ARPA, ARP Timeout 04:00:00Last input 4d07h, output 00:00:00, output hang neverLast clearing of "show interface" counters neverQueueing strategy: fifoOutput queue 0/40, 0 drops; input queue 0/75, 0 drops5 minute input rate 1834000 bits/sec, 2385 packets/sec5 minute output rate 1982000 bits/sec, 2431 packets/sec24461542 packets input, 2348214388 bytes, 0 no bufferReceived 1979 broadcasts, 0 runts, 0 giants, 0 throttles0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort24854257 packets output, 2536222931 bytes, 0 underruns0 output errors, 0 collisions, 0 interface resets0 output buffer failures, 0 output buffers swapped outStep 9
Router# show controllers cable 8/0/0Cable8/0/0 JIB hardware status:JIB Downstream port EnabledJIB Upstream port 0 EnabledJIB Upstream port 1 EnabledJIB Upstream port 2 EnabledJIB Upstream port 3 EnabledCable8/0/0 Upconverter is Enabled Output is EnabledModel: 74-3153-02 Serial Number: 0WAV090200A1 CLEI Code: FFFFFFFFFFHW Rev: PC2D0109 SW Rev: 203, NVRAM Rev: 021 ECI numbStep 10
Router# show running-configuration
Cisco uBR7200 Series Universal Broadband Router Port Adapters Supported
Table 5 provides information about the maximum number of port adapters supported by the Cisco uBR7200 series universal broadband routers in Cisco IOS Release 12.2SC.
Table 5 Number of Port Adapters Supported in Cisco uBR7200 Series Universal Broadband Routers
Cisco uBR7246VXR Universal Broadband Router
See Table 6—2 maximum
Cisco IOS Release 12.2(33)SCA
Table 6 provides information about the port adapters supported by the Cisco uBR7200 series universal broadband routers in Cisco IOS Release 12.2SC and uses the following conventions:
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Table 6 Port Adapters Supported for the Cisco uBR7200 Series Universal Broadband Routers
PA-A3-OC3MM
1-port ATM Enhanced OC3c/STM1 multimode
—
No
PA-A3-OC3SMI
1-port ATM Enhanced OC3c/STM1 single mode (IR)
—
No
PA-A3-OC3SML
1-port ATM Enhanced OC3c/STM1 single mode (LR)
—
No
PA-A3-OC12MM
1-port ATM Enhanced OC12/STM4 multimode
—
No
PA-A3-OC12SMI
1-port ATM Enhanced OC12/STM4 single mode (IR)
—
No
PA-A3-E3
1-port ATM Enhanced E3
—
No
PA-A3-T3
1-port ATM Enhanced DS3
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No
PA-A3-8E1IMA
8-port ATM Inverse Mux E1, 120 ohms
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No
PA-A3-8T1IMA
8-port ATM Inverse Mux T1
—
No
PA-A6-OC3MM
1-port ATM OC-3c/STM-1 multimode, enhanced
12.2(28)SB
Yes
PA-A6-OC3SML
1-port ATM OC-3c/STM-1 single-mode (LR), enhanced
12.2(28)SB
Yes
PA-A6-E3
1-port ATM E3, enhanced
12.2(28)SB
No
PA-A6-T3
1-port ATM DS3, enhanced
12.2(28)SB
Yes
PA-4E
4-port Ethernet 10BASE-T
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No
PA-2FE-FX
2-port Fast Ethernet 100BASE-FX
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Yes
PA-2FE-TX
2-port Fast Ethernet 100BASE-TX
—
Yes
PA-GE
1-port Gigabit Ethernet
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Yes
PA-2H
2-port High-Speed Serial Interface (HSSI)
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No
PA-MC-T3-EC
1-port multichannel T3 enhanced capability
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Yes
PA-MC-T3
1-port multichannel T3
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No
PA-MC-E3
1-port multichannel E3
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No
PA-MC-2T3+
2-port multichannel T3
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No
PA-MC-2E1/120
2-port multichannel E1, G.703 120-ohm interface
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No
PA-MC-4T1
4-port multichannel T1, integrated CSU/DSUs
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No
PA-MC-8TE1+
8-port multichannel T1/E1 8PRI
—
No
PA-MC-STM-1MM
1-port multichannel STM-1 multimode
—
No
PA-MC-STM-1SMI
1-port multichannel STM-1 single mode
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No
PA-4B-U
4-port BRI, U Interface
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No
PA-8B-S/T
8-port BRI, S/T Interface
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No
PA-POS-OC3SMI
1-port Packet over SONET OC3c/STM1 single mode (IR)
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No
PA-POS-1OC3
1-port OC-3/STM-1 POS (with APS)
12.2(28)SB6
Yes
PA-POS-2OC3
2-port OC-3/STM-1 POS (with APS)
—
Yes
PA-4T+
4-port Serial, Enhanced
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Yes
PA-8T-V35
8-port Serial, V.35
—
No
PA-T3+
1-port T3 Serial, Enhanced
12.2(x)SB
Yes
PA-2T3+
2-port T3 Serial, Enhanced
12.2(x)SB
Yes
PA-E3
1-port E3 Serial, E3 DSUs
—
No
PA-2E3
2-port E3 Serial, E3 DSUs
12.2(x)SB
Yes
1 For a spare product number, append an equal sign (=) to the product number. If a product number is listed as a spare product in the table, that is, with an equal sign (=), it means that the product is only available as a spare product.
Cisco uBR10012 Universal Broadband Router Line Cards Supported
The Cisco uBR10012 universal broadband router supports up to four network line cards with any combination of the following cards:
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Other Hardware Supported
Table 7 provides information about other hardware supported in Cisco IOS Release 12.2SC.
Table 7 Other Hardware Supported in Cisco IOS Release 12.2SC
Cisco Wideband SIP and Cisco Wideband SPA
Yes
No
No
Cisco IOS Release 12.2(33)SCA
Cisco 10000 Series SIP-600 and WAN SPAs (5-Port Gigabit Ethernet and the 1-Port 10 Gigabit Ethernet SPAs
Yes
No
No
Cisco IOS Release 12.2(33)SCB
Cisco 10000 Series SIP-600 with the Cisco Wideband SPA
Yes
No
No
Cisco IOS Release12.2(33)SCB
Linksys WCM300-J Wideband Cable Modem1
Yes
No
No
Cisco IOS Release 12.2(33)SCA
Cisco uBR10012 Universal Broadband Router DTCC Card
Yes
No
No
Cisco IOS Release 12.2(33)SCB
Cisco uBR10012 Universal Broadband Router TCC+ Card
Yes
No
No
Cisco IOS Release 12.2(33)SCA
1 The Linksys WCM300-J is not supported for wideband operation in Cisco IOS Release 12.2(33)SCB.
Software Compatibility
Cisco IOS Release 12.2SC is an early deployment (ED) release and supports the following Cisco IOS software releases:
12.2(33) SCA is based on:
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12.2(33)SCB is based on these and later releases:
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Therefore, there is feature parity in Cisco IOS Release 12.2SC with these release trains.
For cable features, Cisco IOS Release 12.2SC supports all of the features that are supported in Cisco IOS Release 12.3(21)BC, with exceptions for those software or hardware features that are supported by platforms or hardware (such as cable interface line cards) that are not supported in Cisco IOS Release 12.2SC.
Determining the Software Version
To determine the version of Cisco IOS software running on your Cisco universal broadband router, log in to the router and enter the show version EXEC command:
Router> show versionRouter# show versionCisco IOS Software, 10000 Software (UBR10K2-K9P6U2-M), Version 12.2(122_33_SCA.2008-02-01) UBUILDIT Image, CISCO DEVELOPMENT TEST VERSIONCopyright (c) 1986-2008 by Cisco Systems, Inc.Compiled Fri 01-Feb-08 16:23 by jdkerrROM: System Bootstrap, Version 12.0(20020314:211744) [REL-pulsar_sx.ios-rommon 112], DEVELOPMENT SOFTWAREUpgrading to a New Software Release
For information about selecting a new Cisco IOS software release, see How to Choose a Cisco IOS Software Release at the following location:
http://www.cisco.com/warp/public/130/choosing_ios.shtml
For information about upgrading the Cisco universal broadband routers, see the Software Installation and Upgrade Procedures document at the following location:
http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a0080094c07.shtml
For Cisco IOS upgrade ordering instructions, see the document at the following location:
http://www.cisco.com/warp/public/cc/pd/iosw/prodlit/957_pp.htm
To choose a new Cisco IOS software release by comparing feature support or memory requirements, use Cisco Feature Navigator. Cisco Feature Navigator is a web-based tool that enables you to determine which Cisco IOS and Catalyst OS 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.
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:
To choose a new Cisco IOS software release based on information about defects that affect that software, use Bug Toolkit at the following URL:
http://www.cisco.com/pcgi-bin/Support/Bugtool/launch_bugtool.pl
System Requirements
Microcode Software
This section describes microcode software that is supported for the Cisco uBR10012 router in Cisco IOS Release 12.2(33)SCB.
Shared Port Adapter FPD Image Packages for the Cisco uBR10012
Field-programmable device (FPD) image packages are used to update shared port adapter (SPA) FPD images. If a discrepancy exists between an SPA FPD image and the Cisco IOS image that is running on the router, the SPA will be deactivated until this discrepancy is resolved.
Note
Shared Port Adapter FPD Image Package for Cisco IOS Release 12.2(33)SCB
The FPD image package that is used to upgrade SPAs on a router that runs Cisco IOS Release 12.2(33)SCB is the ubr10k-fpd-pkg.122-33.SCB pkg file. This SPA FPD image package file is accessible from the page where you downloaded your specific Cisco IOS image from the Software Center on Cisco.com.
Upgrading from PRE2 to PRE4 Processorsr
A cold start of the router is required for an upgrade to a PRE4 from a PRE2 on a Cisco uBR10012 universal broadband router from a different release train, such as Cisco IOS Release 12.3(23)BC or other BC releases.
For more information, see Cisco uBR10012 Universal Broadband Router Performance Routing Engine Module.
Upgrading to Cisco IOS Release 12.2(33)SCA on a Cisco uBR7246VXR Universal Broadband Router
A cold start of the router is recommended for an upgrade to Cisco IOS Release 12.2(33)SCA from a different release train on a Cisco uBR7246VXR router, such as Cisco IOS Release12.3(23)BC or other BC releases.
Upgrading to Cisco IOS Release 12.2(33)SCA on a Cisco uBR10012 Universal Broadband Router
A cold start of the router is recommended for an upgrade to Cisco IOS Release 12.2(33)SCA on a Cisco uBR10012 universal broadband router from a different release train, such as Cisco IOS Release 12.3(23)BC or other BC releases.
If you are supporting PRE1 or earlier processors, it is also required to upgrade to PRE2 processors to support Cisco IOS Release 12.2(33)SCA.
Upgrading from ESR-PRE1 to ESR-PRE2 Processors
Upgrading a system that currently uses an ESR-PRE1 (or earlier processor) requires a hardware upgrade to an ESR-PRE2 to run Cisco IOS Release 12.2(33)SCA. For hardware installation instructions, see the Cisco Performance Routing Engine (ESR-PRE2) Upgrade Installation document at the following URL:
http://www.cisco.com/en/US/docs/interfaces_modules/cable/performance_routing_engine/quick/start/pre2_qsg.html
Upgrading from Cisco IOS Release 12.3BC or Earlier Cisco IOS Software Release
To upgrade from Cisco IOS Release12.3BC or earlier Cisco IOS software release, perform the following steps for an ESR-PRE2 cold start.
This procedure assumes the following configuration:
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Note
Note
To perform the upgrade, follow these steps:
Step 1
Step 2
Step 3
Step 4
Use the show bootvar command to verify that the boot system variable has been altered appropriately on both the active and standby ESR-PRE2s.
If you do not want to make further changes to the startup configuration for the new command set offered by Cisco IOS Release 12.2SC, skip to Step 7.
Note
Step 5
Step 6
Step 7
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At this point, the system should be operating as a dual-PRE redundant Cisco IOS Release 12.2(28)SB system in the configured mode (either SSO or RPR+), running the properly modified startup configuration. You can verify the redundancy status using the show redundancy or show redundancy state command.
Step 8
Rollback Procedure
To roll back to the original release:
Step 1
Step 2
Step 3
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You have now reverted to the original system configuration.
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
Feature List Table
Table 9 and Table 11 provide a summary of the new and legacy cable features supported in Cisco IOS Release 12.2SC by early deployment release train
Other Feature Support
Note
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 12.2(33)SCA1 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 12.2, 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 universal broadband routers in Cisco IOS Release 12.2SC:
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New Hardware Features in Cisco IOS Release 12.2(33)SCB3
There are no new hardware features in Cisco IOS Release 12.2(33)SCB3.
New Hardware Features in Cisco IOS Release 12.2(33)SCB2
There are no new hardware features in Cisco IOS Release 12.2(33)SCB2.
New Hardware Features in Cisco IOS Release 12.2(33)SCB1
There are no new hardware features in Cisco IOS Release 12.2(33)SCB1.
New Hardware Features in Cisco IOS Release 12.2(33)SCB
This section describes the hardware features supported in Cisco IOS 12.2(33)SCB. Some features may be new to Cisco IOS Release 12.2(33)SCB but were released in earlier Cisco IOS software releases.
Cisco 10000 Series SPA Interface Processor-600 Support
The Cisco 10000 Series SPA Interface Processor-600 (referred to as the Cisco SIP-600) is a SPA interface processor (SIP) that functions as a carrier card for shared port adapters (SPAs) on the Cisco uBR10012 router. The SIP is compatible with the following platform-independent SPAs:
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The Cisco SIP-600 is supported on both PRE2 and PRE4 configurations. With a PRE2 configuration, the Cisco SIP-600 can support up to four Cisco Wideband SPAs, and with a PRE4 configuration, the SIP can support up to six Cisco Wideband SPAs.
The Cisco SIP-600 is a full-height line card that occupies two physical slots in a Cisco uBR10012 router. Each chassis supports a maximum of two SIPs that can be inserted in the following slots:
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The Cisco SIP-600 supports four bays (subslots) for the installation of SPAs. The SPA bays are numbered from 0 to 3 on a Cisco uBR10012 router. The number for each SPA bay is indicated by a small numeric label on the SIP faceplate.
SPAs on a Cisco uBR10012 router use an addressing format that specifies the physical location of the SIP, SPA, and interface in the format slot/bay/port, where:
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For more information about the Cisco SIP-600 and supported SPAs, refer to the following documents:
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Cisco 10000 Series Performance Routing Engine 4
The Performance Routing Engine 4 (PRE4) is the fifth-generation Parallel eXpress Forwarding (PXF) packet processing and scheduling engine. The PRE4 performs all Layer 2 and Layer 3 packet manipulation related to routing and forwarding. The advanced application-specific integrated circuit (ASIC) technology of the PRE4 supports high performance throughput with IP services enabled on each port.
The PRE4 runs Cisco IOS Release 12.2(33)SCB and later releases. Benefits of the PRE4 include:
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Copper SFP Support for HHGE on the Cisco uBR10012 Router
The Cisco 1000BASE-T SFP (small form-factor pluggable) module support for the Half-Height Gigabit Ethernet Line Card is introduced in Cisco IOS Release 12.3(23)BC1 and integrated into Cisco IOS Release 12.2(33)SCB. SFP modules are input/output devices that plug into a Gigabit Ethernet (GE) port, linking the port with a fiber-optic network. The modules are used on Cisco platforms that have Gigabit Ethernet interfaces.The product ID of the Cisco 1000BASE-T SFP module is GLC-T. The Cisco 1000BASE-T SFP module connects a Cisco Gigabit Interface Converter (GBIC) port to Category 5 wiring via a standard RJ-45 interface. The maximum Category 5 wiring distance is 100 m. The module provides an option of connecting to a backhaul network interface.
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:
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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.
NPE-G2 Processor on the Cisco uBR7225VXR Router
http://www.cisco.com/en/US/docs/cable/cmts/ubr7200/ubr7225vxr/installation/guide/ub7225prod.html#wp1026827
New Hardware Features in Cisco IOS Release 12.2(33)SCA2
There are no new hardware features in Cisco IOS Release 12.2(33)SCA2.
New Hardware Features in Cisco IOS Release 12.2(33)SCA1
There are no new hardware features in Cisco IOS Release 12.2(33)SCA1.
New Hardware Features in Cisco IOS Release 12.2(33)SCA
This section describes the hardware features supported in Cisco IOS 12.2(33)SCA. Some features may be new to Cisco IOS Release 12.2(33)SCA but were released in earlier Cisco IOS software releases.
Cisco uBR7246VXR Support in Cisco IOS Release 12.2(33)SCA
This feature adds support for the Cisco uBR7246VXR universal broadband router in Cisco IOS Release 12.2(33)SCA. The Cisco uBR7246VXR router is previously supported in Cisco IOS Release 12.3BC. In Cisco IOS Release 12.2(33)SCA, support is added for the NPE-G2 processor and several new software features including IPv6 and L2VPN.
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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Cisco uBR7225VXR Support in Cisco IOS Release 12.2(33)SCA
The Cisco uBR7225VXR universal broadband router is introduced in Cisco IOS Release 12.2(33)SCA. The Cisco uBR7225VXR router provides the following benefits:
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The Cisco uBR7225VXR router provides the following major hardware features:
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The front of the Cisco uBR7225VXR chassis provides access to two cable interface cards, while the rear provides access to the network processing engine and up to two power supplies. A fully configured Cisco uBR7225VXR router can operate with only one installed power supply; however, a second, optional power supply of the same type provides hot-swappable, load-sharing, and redundant power. In a chassis using two power supplies, if one power supply fails or is removed, the redundant power supply immediately takes over the router's power requirements and maintains normal operation without interruption.
Cisco uBR10012 Support in Cisco IOS Release 12.2(33)SCA
This feature adds support for the Cisco uBR10012 universal broadband router in Cisco IOS Release 12.2(33)SCA. The Cisco uBR10012 router is previously supported in Cisco IOS Release 12.3BC.
The Cisco uBR10012 router provides a cost-effective, scalable, and industry-proven CMTS, optimized for aggregating traffic at the edge of the cable network. It has eight broadband aggregation slots and four WAN backhaul slots.
Designed for cable operators and service providers, the Cisco uBR10012 router CMTS platform connects residential subscribers via cable modems, digital set-top boxes, or IP telephony cable modems for high-speed data, broadband entertainment, and IP telephony solutions.
The Cisco uBR10012 router chassis is designed for front and rear access. The front of the chassis provides access to the following components:
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The rear of the chassis provides access to the following components:
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The Cisco uBR10012 router uses redundant PEMs using -48 to -60 VDC input power. An optional AC-input power shelf can be used to provide the DC-output power for the Cisco uBR10012 router.
For detailed descriptions of the Cisco uBR10012 router chassis and supported components, refer to the "Related Documentation" section.
Cisco Wideband SIP and Cisco Wideband SPA
Platforms: Cisco uBR10012
The Cisco uBR10012 router currently supports only the Cisco Wideband SIP for the 1-Gbps Wideband SPA (part number UBR10-2XDS-SIP). The Wideband SIP can support up to two Cisco 1-Gbps Wideband SPAs.
The Cisco Wideband SPA is a single-wide, half-height shared port adapter that provides Cisco Wideband Protocol for a DOCSIS Network formatting to the downstream data packets. The Wideband SPA is used for downstream data traffic only.
The Wideband SPA has one active and one redundant Gigabit Ethernet port that is used to send traffic to the external edge QAM device. If the link state of both Gigabit Ethernet ports is up, port 0 will come up as the active port and port 1 will be the redundant port. If the link state of port 0 is not up, port 1 will come up as the active port.
The Cisco uBR10012 router can support up to two Cisco Wideband SPAs. Depending on how it is configured, each Cisco Wideband SPA supports up to 24 RF channels. Each Cisco Wideband SPA can support up to 12 logical wideband channels (bonding groups).
The Wideband SPA contains field-programmable devices: the Wideband SPA FPGAs and Complex Programmable Logic Device (CPLDs). The FPGA and CPLD upgrade information is part of the Cisco IOS release rather than a separate file to be downloaded by users.
For more information about the Cisco Wideband SIP and Cisco Wideband SPA hardware and software, refer to the following documents for Cisco IOS 12.3(21)BC-based software releases:
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1-Port 10 Gigabit Ethernet Shared Port Adapter, LANPHY XFP Optics
Platform: Cisco uBR10012 with PRE-4
The Cisco 1-Port 10-GE SPA is a single height SPA. The interface connector on this SPA is a fiber optic receiver that supports one XFP. The SPA provide standards-based 10-GE implementation for compatibility and interoperability. For more information, see the Cisco uBR10012 Universal Broadband Router SIP and SPA Hardware Installation Guide and the Cisco uBR10012 Universal Broadband Router SIP and SPA Software Configuration Guide:
http://www.cisco.com/en/US/products/ps6267/prod_installation_guides_list.html
5-Port Gigabit Ethernet Shared Port Adapter
Platform: Cisco uBR10012 with PRE-4
The Cisco 5-Port GE SPA is a single height SPA. The interface connector on this SPA is a fiber optic receiver that supports SFPs. The SPA provide standards-based GE implementation for compatibility and interoperability. For more information, see the Cisco uBR10012 Universal Broadband Router SIP and SPA Hardware Installation Guide and the Cisco uBR10012 Universal Broadband Router SIP and SPA Software Configuration Guide:
http://www.cisco.com/en/US/products/ps6267/prod_installation_guides_list.html
New Software Features in Cisco IOS Release 12.2(33)SCB3
This section describes the new and modified cable software features in Cisco IOS Release 12.2(33)SCB3.
ISSU - In Service Software Upgrade
The ISSU process is performed during normal PRE processor module CPU utilization and line card CPU utilization conditions. The ISSU process is not recommended when the PRE processor module CPU utilization is constantly higher than 80% or line card CPU utilization is higher than 90%.
Note
The following commands are used to check the PRE processor module CPU utilization and line card CPU utilization respectively prior to start of the ISSU process:
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For detailed information about the ISSU feature and process, see
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_issu.html.
For a detailed description of the commands please refer the Cisco IOS CMTS Cable Command Reference.
New Software Features in Cisco IOS Release 12.2(33)SCB2
There are no new software features in Cisco IOS Release 12.2(33)SCB2.
New Software Features in Cisco IOS Release 12.2(33)SCB1
This section describes the new cable software features in Cisco IOS Release 12.2(33)SCB1.
DOCSIS 3.0 Downstream Peak Traffic Rate TLV Support for ERBA
The peak-rate option of the cable ds-max-burst command allows you to specify the peak rate an ERBA-enabled service flow can use. The peak-rate value is a global value and is applied to all service flows created after the configuration of the cable ds-max-burst command. The default value of the peak-rate is zero.
If the DOCSIS 3.0 TLV 25.27 is specified for a service flow, the peak-rate value is set as the TLV value. However, if ERBA is not turned on for a service flow, the peak-rate value is ignored.
The peak-rate value can also be configured through cable service class command which forms part of the service class template. During modem registration or Dynamic Service Addition (DSA) operation, the service class name TLV 25.4 is sent to create the static or dynamic downstream service flow that matches the service class template. These downstream service flows are created with a specific peak-rate. If the peak-rate is not specified, then the value specified by the cable ds-max-burst command is used.
If a service flow has both service class and TLV 25.27 defined peak-rate, then the peak-rate value specified in the TLV is used.
The Cisco IOS Release 12.2(33) SCB1 modifies the cable service class command with the addition of peak-rate to set value greater than max-rate.
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:
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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#wp1011194
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
RCC Spanning Across Multiple SPAs for VDOC Broadcast
The VDOC broadcast feature requires modems to be tuned to RF-spanned channels carrying video streams. The RF-spanned channels originate from a SPA other than the SPA hosting the primary bonding group assigned to the cable modem.
For detailed information about this feature, see the IGMP-Triggered VDOC Broadcast Support on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/VDOC_dbc_feature.html
SAMIS CLC-RP Traffic Throttling
The SAMIS CLC-RP traffic throttling feature limits or throttles the data collection between the cable line card and the route processor. This functionality is achieved using the new cable metering data-per-session command. This feature also reduces the congestion in the Broadband Processing Engine (BPE) due to the SAMIS data collection from CLC to RP.
The following commands are new or modified:
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Service Disruption during ISSU
PacketCable Voice and UGS Service Flows
The Unsolicited Grant Service (UGS) voice flow based voice service outage time during the ISSU process is provided in Table 12.
Other Service Flows
The non UGS service flows (except UGS) exhibit a higher service impact and are provided in Table 13.
New Software Features in Cisco IOS Release 12.2(33)SCB
This section describes the new cable software features in Cisco IOS Release 12.2(33)SCA. Some features may be new to Cisco IOS Release 12.2(33)SCB but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.2(33)SCB. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.
DOCSIS OSSI Event Messages
The DOCSIS OSSI Event Messages feature describes the error messages for events as required by the DOCSIS 2.0 specifications.
The DOCSIS 2.0 specifications require the CMTS to generate a set of messages for DOCSIS-specific events. These event messages must conform to the requirements of Section 7.4.2.2.2, SYSLOG Message Format, in the DOCSIS 2.0 Operations Support System Interface (OSSI) Specification (CM-SP-OSSIv2.0-I09-050812). The event message format is as follows:
%System_Error_Message: <Level>CMTS[DOCSIS]:<Event ID> Message Text
For detailed information on the components contained in the event message format, refer to the DOCSIS 1.1 Event Messages section of the Cisco IOS CMTS Cable System Messages Guide.
The event messages are implemented as part of the 0SS 18.2 specifications for the following processes:
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The processes listed above have further set-off sub-processes for which events are generated. For the full list of event messages supported on the Cisco uBR10012 router, refer to the Cisco IOS CMTS Cable System Messages Guide at the following location: http://www.cisco.com/en/US/docs/cable/cmts/system/message/uberrchap3.html
Bypass the 24 Hour Timer for WB CM Use of Failed RF Channels
When the CM sends a request to the CMTS for bonded service, the CMTS assigns the best available bonding group that is compatible with the CM. The CM then attempts to acquire the non-primary DS RF channels that are members of that bonding group. If the CM is unable to acquire one or more of the channels, it returns an error code causing the CMTS to mark all of the assigned RF channels as unacceptable for that CM. In prior versions, the channels so marked could not be reassigned to the same CM for up to 24 hours.
The new feature has removed the 24 hour timer required to clear these channels. Once the CM successfully completes registration, the list of failed RF channels for that CM is cleared. If the RF impairment has been eliminated when the CM re-registers, that channel can be reused immediately.
There are no new or modified commands for this feature.
CM Steering
Platforms: Cisco uBR7246VXR, Cisco uBR7225VXR, and Cisco uBR10012
The Cable Modem (CM) Steering feature helps to redirect or steer CMs to multiple Cable Modem Termination Systems (CMTS) using downstream frequency overrides. A configurable string is used to bond the CM to the proper CMTS. Once the bonding is done, you can redirect or steer the CMs to one or more CMTSs using downstream frequency overrides.
The following commands are new or modified:
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For detailed information about this feature, see the CM Steering on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_cm_steer.html
CMTS IPDR/SP
Platforms: Cisco uBR7246VXR, Cisco uBR7225VXR, and Cisco uBR10012
The Cisco universal broadband router supports the Internet Protocol Detail Record (IPDR) Streaming Protocol feature that enables efficient and reliable delivery of high volume data records from the service elements to any systems, such as mediation systems and BSS/OSS. IPDR Streaming Protocol is designed to address critical issues such as the need for a reliable, fast, efficient and flexible export process of high volume data records such as billing, performance, and diagnostic data.
The IPDR/SP process communicates with the IPDR collectors. The architecture supports primary and secondary collectors for failover purposes. At any time, data is sent only to one collector. If the exporter to primary collector connection failed due to any reason, the data is sent to a secondary collector. Depending on the network configuration, you can have multiple primary collectors designed for different types of data. For example, there may be a billing collector, a diagnostic collector, and so on.
The following commands are new in Cisco IOS Release 12.2(33)SCB.
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For more information on the IPDR, see the Configuring IPDR Streaming Protocol on the CMTS Router document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ipdr_feature.html
DOCSIS 3.0 Downstream Bonding for Bronze Certification
Platforms: Cisco uBR10012 router
The DOCSIS 3.0 Downstream Bonding for Bronze Certification feature enables high-speed broadband access (100 Mbps) and helps cable operators offer more bandwidth-intensive services by adding one or more additional downstream quadrature amplitude modulation (QAM) channels to the standard broadband DOCSIS system. This new set of downstream channels is grouped into one larger channel, known as a bonded channel.
Channel bonding combines several radio frequency (RF) channels into one virtual channel. Data rates in this virtual channel range from hundreds of megabits to potentially gigabits per second creating more available bandwidth in the network.
The following commands are new or modified:
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For more information about this feature, see the DOCSIS 3.0 Downstream Utility for Bronze Certification document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_ds_bonding.html
DOCSIS 3.0 Multicast Support
Platforms: Cisco uBR7246VXR, Cisco uBR7225VXR, and Cisco uBR10012
Cisco IOS Release 12.2(33)SCB introduces multicast improvements as mandated by DOCSIS 3.0 specifications on the Cisco CMTS routers. DOCSIS 3.0 multicast support improves bandwidth efficiency and allows service providers to offer differentiated quality of service for different types of traffic.
Using the multicast improvements, the cable operators can seamlessly deliver advanced services like Video On Demand (VoD), IPTV, and facilitate interactive video and audio and data services.
The following commands are new or modified:
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For detailed information about this feature, see the DOCSIS 3.0 Multicast Support on the CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_d30_mcast_support.html
DOCSIS WFQ Scheduler
Platform: Cisco uBR10012
The Data Over Cable Service Interface Specification (DOCSIS) Weighted Fair Queuing (WFQ) Scheduler is an output packet scheduler that provides output scheduling services on both WAN uplink interfaces and DOCSIS downstream interfaces.
The DOCSIS WFQ scheduling engine is used to provide output packet scheduling services including absolute priority queueing, weighted fair queueing, minimum rate guarantee, shaping, and DOCSIS bonding group dynamic bandwidth sharing on the Cisco uBR10012 universal broadband router. It replaces the existing Versatile Traffic Management System (VTMS) scheduler.
For detailed information about this feature, see the DOCSIS WFQ Scheduler on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_docsis_wfq_sch.html
Dynamic Bandwidth Sharing
Platform: Cisco uBR10012
Dynamic bandwidth sharing (DBS) is the dynamic allocation of bandwidth for wideband (WB) and modular cable (MC) interfaces sharing the same downstream channel. The bandwidth available to each WB, MC, or narrowband channel is not a fixed value (it depends on the configuration and the traffic load on the WB or MC).
DBS is achieved using a new type of modality called a link queue. Link queues represent a specific share of bandwidth on a particular channel. Link queues are only used to calculate the effective bandwidth of a channel, and such link queues are activated and deactivated according to the state of activity on a specific channel. DBS and static bandwidth allocations are configured at the WB or MC interface level. By default, bandwidth for a WB or MC channel is statically allocated. When DBS is enabled on an interface, the static bandwidth percentage is converted to a committed information rate (CIR) value for the corresponding link queue. The interface CIR value represents the guaranteed portion of the interface bandwidth and is used for admission control of the service flows with a minimum reserved rate. When DBS is enabled, you can also specify the remaining ratio value of the excess bandwidth for the link queue. If DBS is enabled and no bandwidth percentage is specified, no bandwidth is reserved for the WB or MC interface and the interface is effectively in the protocol down state where link queues are not created.
Dynamic bandwidth sharing does not preclude static bandwidth configuration. If a static portion of bandwidth is configured on any radio frequency (RF) channel that one or more DBS-enabled channel utilizes, that portion is subtracted from the RF link CIR. Therefore, such a portion is always reserved and is not available to dynamic WB or MC interfaces. The DBS feature continues working across line card and performance routing engine (PRE) switchovers with no loss of functionality.
For more information on the DBS please see the Dynamic Bandwidth Sharing on the Cisco CMTS Router document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_dyn_bw_sharing.html
The following commands are new in Cisco IOS Release 12.3(23)BC1 and integrated into Cisco IOS Release 12.2(33)SCB:
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The following commands are modified in Cisco IOS Release 12.3(23)BC1 and integrated into Cisco IOS Release 12.2(33)SCB:
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For a detailed description of the commands please refer the Cisco IOS CMTS Cable Command Reference.
Dynamic Service Transaction ID Allocation
Platforms: Cisco uBR7246VXR, Cisco uBR7225VXR, and Cisco uBR10012
DOCSIS 2.0 mandates unique Transaction IDs (TAIDs) across transactions. The TAIDs must be unique and not incremented. The TAIDs are assigned by the senders and sometimes the TAID timeout is mismatched between senders and receivers. This affects the uniqueness of the TAID.
A TAID can be reused when the sender finishes a transaction. Similarly, DOCSIS allows the receiver to identify a transaction by TAID without the SFID. Problems arise in DSD transaction and DSA/DSC interrupted transactions, when these two requirements are combined.
The uniqueness of TAID must be ensured to resolve the interoperability issue. This is done by making the CMTS wait until T10 to reuse the same TAID. A new TAID allocation algorithm is used to fulfill this requirement.
It creates a TAID pool to replace the existing 16-bit counter. This TAID pool is monitored by timers to track the TAID expiration. A flag is assigned to each TAID in the pool to indicate its availability. When new TAID is requested, the dynamic service process checks the availability of the TAID. If the TAID is available, it is allocated to the new service flow, or else the request is rejected.
Once the TAID is allocated, the timer starts with T10 expiration time and the TAID flag is set to FALSE to indicate the unavailability of the TAID. The dynamic service process keeps track of the timer. When the time expires, the timer stops and the flag is set to TRUE to indicate the availability of the TAID.
The TAID pool is allocated and initialized at the process initialization. All timers associated with the TAIDs are added as leaf timers to the process parent timer.
For detailed information about this feature, see the Configuring Video over DOCSIS Broadcast on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_pktcable_mm.html
IGMP-Triggered VDOC Broadcast Support
The Cisco universal broadband router supports the Video over DOCSIS (VDOC) feature enabling multiple system operators (MSOs) to broadcast video content on RF-spanned downstream signals.
The VDOC feature facilitates broadcasting video over DOCSIS (Data Over Cable Service Interface Specification). Video streams are broadcast to one or more downstream RF channels using static multicast. Depending on the video stream selected for viewing by the IP set-top box, the multi-tuner cable modem is tuned to the appropriate RF channel carrying the specific video stream.
For more information on the VDOC, see the Configuring Video over DOCSIS Broadcast on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/VDOC_dbc_feature.html
IP SLAs Random Scheduler
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_multi_scheduler.html
IP SLAs Additional Threshold Traps
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/command/reference/sla_book.html
IP SLAs--Proactive Threshold Monitoring of IP SLAs Operations
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_threshold_mon.html
IP SLAs--Analyzing IP Service Levels Using the UDP Jitter Operation
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_udp_jitter.html
IP SLAs--Analyzing VoIP Service Levels Using the UDP Jitter Operation
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_udp_jitter_voip.html
IP SLAs--Analyzing IP Service Levels Using the TCP Connect Operation
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_tcp.html
IP SLAs - Scheduler
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_overview.html
IP SLAs--Proactive Threshold Monitoring of IP SLAs Operations
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_threshold_mon.html
IP SLAs - One Way Measurement
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_overview.html
IP SLAs--Multioperation Scheduling of IP SLAs Operations
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_multi_scheduler.html
IP SLAs - MPLS VPN Awareness
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_overview.html
IP SLAs -- Analyzing IP Service Levels Using the ICMP Path Echo Operation
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_icmp_pathecho.html
IP SLAs -- Analyzing IP Service Levels Using the HTTP Operation
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_http.html
IP SLAs -- Analyzing IP Service levels Using the FTP Operation
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_ftp.html
IP SLAs -- Analyzing IP Service Levels Using the DNS Operation
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_dns.html
IP SLAs - Distribution of Statistics
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_dns.html
IP SLAs -- Analyzing IP Service Levels Using the DHCP Operation
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/configuration/guide/sla_dhcp.html
IP SLAs CLI Phase 3
Platforms: Cisco uBR10012 (PRE2 and PRE4), Cisco uBR7246VXR (NPE-G1 and NPE-G2), Cisco uBR7225VXR (NPE-G1 and NPE-G2)
For detailed information about this feature, see the following Cisco document:
http://www.cisco.com/en/US/docs/ios/ipsla/command/reference/sla_book.html
ISSU - In Service Software Upgrade
Platforms: Cisco uBR10012 Universal Broadband Router
The In Service Software Upgrade (ISSU) process allows Cisco IOS software to be updated while packet forwarding continues. In most networks, planned software upgrades are a significant cause of downtime. ISSU increases network availability and reduces downtime caused by planned software upgrades.
The Cisco uBR10012 software upgrade consists of the following process changes.
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For detailed information about the ISSU feature and process, see
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_issu.html.
Line Card High Availability (HA) Support for WB Cable Modems
Platform: Cisco uBR10012
Wideband cable modems remain online whenever there is a failure or switchover of a 520 MD host line card, 520 guardian line card, 520 host or 520 guardian on the same line card, or a performance routing engine (PRE).
There are no new or modified commands for this feature.
Load Balancing Prohibition Based on Group Policy ID
Platforms: Cisco uBR7246VXR, Cisco uBR7225VXR, and Cisco uBR10012
Effective with Cisco IOS Release 12.2(33)SCB, and later releases, load balancing is enhanced to use rules and policies to decide on moving the CMs within their LB groups. These policies are created on the CMTS and chosen on a per-CM basis using TLV portion (43.1, Policy ID) of REG-REQ. These policies prohibit a modem from being moved or restricted.
A policy contains a set of rules. When it is defined by multiple rules, all rules apply in combinations. A rule can be defined as "enabled", "disabled", or "disabled during time period."
Each rule can be used by more than one policy. When it is defined by multiple rules, all rules apply in combinations. Each rule helps to prohibit load balancing using a particular CM and to prohibit load balancing using a particular CM during certain times of the day.
For detailed information about this feature, see the Load Balancing and Dynamic Channel Change on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_load-bal_dcc.html
MxN MAC Domain DS Load Balancing
Platform: Cisco uBR10012
Prior to the introduction of this new feature, load balancing configuration using the cable load-balance group policy (us-groups-across-ds) command only considered upstream (US) load balancing across different downstream (DS) channels. This was sufficient if an US channel was not associated to more than one DS channel. However, for an MxN MAC domain, it is possible to have one US channel associated to multiple DS channels. In this case, it is necessary to further balance the DS load, once the US load is sufficiently balanced.
With the new feature, once the us-groups-across-ds policy is configured, CMTS attempts to balance the DS load on top of the balanced US load and among DS channels associated to the same US. The method and policy used for DS load balancing are based on the configuration in the DS load balancing group associated to the corresponding DS channels.
There are no new or modified commands for this feature.
MIBs
The following MIB information is new in Cisco IOS Release 12.2(33)SCB:
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For details information about these MIBs, see the Cisco CMTS Universal Broadband Series Router MIB Specifications Guide 12.2 SC at:
http://www.cisco.com/en/US/docs/cable/cmts/mib/reference/guide/ubrmib3M.html
Onboard Failure Logging (OBFL)
Platforms: Cisco uBR10012 platform for PRE4 and Cisco 10000 Series SIP-600
The Onboard Failure Logging (OBFL) feature enables storage and collection of critical failure information in the nonvolatile memory of an Field Replaceable Unit (FRU), such as a Route Processor (RP) or Line Card. The Cisco 10000 series router supports OBFL on the PRE4 and the SPA Interface Processor (SIP). This feature is supported on the Cisco uBR10012 router with the PRE4 and SIP-600. This is supported for the PRE4 and SIP-600 only.
The OBFL stored data assists in understanding and debugging field failures upon Return Material Authorization (RMA) of a RP or line card at repair and failure analysis sites.
OBFL records operating temperatures, hardware uptime, interrupts and any other important events that assist board diagnosis in case of hardware failures.
For more information on the feature, see the Onboard Failure Logging feature guide located at the following URL:
PXF Divert Rate Limit Enhancements
Platform: Cisco uBR10012
The Parallel eXpress Forwarding (PXF) Divert Rate Limit (DRL) Enhancement feature aims to prevent congestion of the forwarding processor (FP) to the Route Processor (RP) interface by identifying and rate-limiting entities that would otherwise cause congestion. Congestion of FP-to-RP interface can be caused deliberately by Denial-of-Service (DoS) attacks directed at the CMTS, or inadvertently by faulty external hardware.
The PXF DRL Enhancement feature applies to both cable and WAN interfaces.
The following commands are new or modified:
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For detailed information about this feature, see the PXF Divert Rate Limit Enhancement on the Cisco CMTS Routers document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_pxf_drl_limit_enhance.html
RSVP-Based Video on Demand Support over DOCSIS
Platforms: Cisco uBR7246VXR, Cisco uBR7225VXR, and Cisco uBR10012
The Cisco universal broadband router supports Video on Demand over DOCSIS (Data Over Cable Service Interface Specification) services using RSVP (Resource ReSerVation Protocol) bandwidth request from the VoD server. The RSVP protocol is used by the Cable Modem Termination System (CMTS) to request video data from the network for specific application data flows.
The RSVP protocol is used by a host to request specific qualities of service (QoS) from the network for particular application data streams or flows. RSVP is used by the CMTS to deliver video requests along the data path of the flows and maintains the state to provide the requested service. RSVP requests will generally result in resources being reserved in each node along the data path.
The following commands are new in Cisco IOS Release 12.2(33)SCB.
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For more information on the RSVP, please see
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/VDOC_rsvp_feature.html
Subscriber Management Packet Filtering for DOCSIS 2.0
The Cisco universal broadband router supports management of data packet filtering based on the subscriber's preferences and criteria. Packet filtering enhances security to the cable network by allowing only the specific packets to flow to the Customer Premise Equipment (CPE) while dropping the unwanted data packets from the cable network. The Cisco uBR10012 router, Cisco uBR7225VXR router, and Cisco uBR7246VXR router support this feature.
A filter group specifies what filters are applied to the packets going to or coming from each specific CM or CPE device. It defines the rules or criteria to filter or drop a packet. Every packet that has to be filtered can either be accepted to send or filtered to be dropped. The criteria to filter a packet depends on the subscriber's preferences. The filter group can be applied to different subscriber management groups.
The following commands are new or modified in Cisco IOS Release 12.2(33)SCB.
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For more information on the subscriber management packet filtering, please see
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/SMPF_feature.html
Subscriber ID Support for Packetcable
Platform: Cisco uBR7246VXR, Cisco uBR7225VXR, Cisco uBR10012
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:
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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-subscriber ID used in global configuration mode. For more information, see the Packetcable feature in the Cisco IOS CMTS Cable Command Reference Guide at
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_pktcable_mm.html
Subscriber Traffic Management Version 1.2
Platform: Cisco uBR7246VXR, Cisco uBR7225VXR, Cisco uBR10012
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 and integrated into Cisco IOS Release 12.2(33)SCB with the following support on the Cisco uBR7246VXR and Cisco uBR10012 Universal Broadband Routers:
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Addition of the following SNMP objects to the CISCO-CABLE-QOS-MONITOR-MIB:
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The following commands are new or modified:
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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
Platform: Cisco uBR7246VXR, Cisco uBR7225VXR, and Cisco uBR10012
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:
· Group configuration mode enables rate-adapt eligibility on all cable modem upstream flows.
· Local configuration mode enables rate-adapt eligibility on a specific upstream, provides configuration of selective parameters, and provides that local configuration overrides any global configuration.
The following commands are new or modified:
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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
Voice Support on WB Modems
Platform: Cisco uBR10012
CMTS supports voice services on voice-enabled wideband (WB) cable modems. Committed information rate (CIR) downstream service flows on WB interfaces are supported. You can reserve up to 90% of the wideband interface bandwidth. If multiple MAC domains (MDs) are sharing a WB interface, the available link rate is distributed evenly between all MDs that share the WB interface. If the MDs that share the WB interface are on the same line card, they share the CIR pool.
To display the reserved and available bandwidth, you can use the show-module bay all association wideband command. To display the reserved and available bandwidth for wideband interfaces, you can use the show interface wideband-cable command. For more information, see the Cisco IOS CMTS Cable Command Reference Guide.
There are no new commands introduced for this feature. However, the user must first enable packet cable or multimedia packet cable to enable the voice support feature.
VoIP SFID Mapping
Platform: Cisco uBR10012
The introduction of WB MTAs (media terminal adapters) and the resequencing delays with the downstream (DS) bonded traffic are pushing voice traffic towards non-bonded channels.
As the WB MTA is making use of the cable line card (CLC) DS interface as the primary interface, it can protect voice traffic from edge quadrature amplitude modulation (e-QAM) and shared port adapter (SPA) failures. It also helps in leveraging the CLC redundancy feature to protect voice calls.
The voice-over-IP (VoIP) Service Flow ID (SFID) Mapping feature leverages Data-over-Cable Service Interface Specifications (DOCSIS) 3.0 Service Flow (SF) Attribute-based assignment which allows forwarding to Bonding groups or to single channel on a per-SF basis.
The customer premises equipment (CPE) constructs DSX (Dynamic-service DOCSIS mac-management) messages that does not conform to DOCSIS 3.0 specifications and does not includes the SF Attribute parameters. However, the Cable Modem Termination System (CMTS) should control these factors and whenever voice calls are initiated; the CMTS must add SF Attributes, configured by the user, to the DSX messages.
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Wideband Modem Resiliency
Platform: Cisco uBR10012 Router
The Wideband Modem Resiliency feature enables the Cisco uBR10012 router to interact with DOCSIS 3.0-compliant cable modems in order to provide the best possible service in the event of non-primary radio frequency channel disruptions such as loss of quadrature amplitude modulation (QAM), forward error correction (FEC) locks, and MAC Domain Descriptor (MDD) time-outs. If a CM loses connectivity to the CMTS on one or all of its non-primary RF channels, the CMTS does not force the CM to perform a MAC reset and enables the CM to remain operational.
A DOCSIS 3.0-qualified CMTS transmits data to one or more DOCSIS 3.0-compliant cable modems using multiple RF channels. For a CM, one of the RF channels is used as the primary RF channel, and the rest of the channels are considered non-primary channels. The primary RF channel is defined to be the downstream (DS) RF channel on which the CM receives DOCSIS MAC messages needed for upstream timing and synchronization.
The following commands are new or modified:
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For more information about this feature, see the Cisco feature document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/ubr_wm_resiliency.html
New Software Features in Cisco IOS Release 12.2(33)SCA2
There are no new software features in Cisco IOS Release 12.2(33)SCA2.
New Software Features in Cisco IOS Release 12.2(33)SCA1
There are no new software features in Cisco IOS Release 12.2(33)SCA1.
New Software Features in Cisco IOS Release 12.2(33)SCA
This section describes the new cable software features in Cisco IOS Release 12.2(33)SCA. Some features may be new to Cisco IOS Release 12.2(33)SCA but were released in earlier Cisco IOS software releases. Some features may have been released in earlier Cisco IOS software releases and have been changed in Cisco IOS Release 12.2(33)SCA. To determine if a feature is new or changed, see the feature history table at the beginning of the feature module for that feature. Links to feature modules are included below. If a feature listed below does not have a link to a feature module, that feature is documented only in the release notes, and information about whether the feature is new or changed will be available in the feature description provided below.
DHCPv6 Relay Agent Notification for Prefix Delegation
Platforms: Cisco uBR7246VXR, Cisco uBR7225VXR, Cisco uBR10012
DHCPv6 relay agent notification for prefix delegation allows the router working as a DHCPv6 relay agent to find prefix delegation options by reviewing the contents of a DHCPv6 RELAY-REPLY packet that is being relayed by the relay agent to the client. When a prefix delegation option is found by the relay agent, the relay agent extracts the information about the prefix being delegated and inserts an IPv6 static route matching the prefix delegation information onto the relay agent. Future packets destined to that prefix via relay will be forwarded based on the information contained in the prefix delegation. The IPv6 static route is then left in the routing table until the prefix delegation lease time expires or the relay agent receives a release packet from the client releasing the prefix delegation.
No user configuration is required for this feature. Static route management is done automatically by the relay agent.
The IPv6 routes are added when the relay agent relays a RELAY-REPLY packet, and the IPv6 routes are deleted when the prefix delegation lease time expires or the relay agent receives a release message. An IPv6 static route in the routing table of the relay agent can be updated when the prefix delegation lease time is extended.
This feature leaves a static IPv6 route on the routing table of the relay agent. This registered IPv6 address allows unicast reverse packet forwarding (uRPF) to work by allowing the router doing the reverse lookup to confirm that the IPv6 address on the relay agent is not malformed or spoofed. The static route left in the routing table of the relay agent can be redistributed to other routing protocols to advertise the subnets to other nodes. The static routes will be removed when an DHCP_DECLINE message is sent by the client.
For detailed information about this feature, see the "Implementing DHCP for IPv6" chapter of the Cisco IOS IPv6 Configuration Guide at:
http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-dhcp.html
IPv6 on Cable
Platforms: Cisco uBR7246VXR, Cisco uBR7225VXR, Cisco uBR10012
In Cisco IOS Release 12.2(33)SCA, IPv6 functionality is introduced on the Cisco universal broadband routers. IPv6 (Internet Protocol Version 6) has also been called "IPng" (IP Next Generation). Formally, IPv6 is a set of specifications from the Internet Engineering Task Force (IETF) that were designed as an evolutionary set of improvements to the current IP Version 4. The most obvious difference between IPv6 and IPv4 is that IP addresses are lengthened from 32 bits to 128 bits, which dramatically increases the available number of IP addresses as expanding network technologies and the need for IP addressing on multiple consumer devices is straining the current IPv4 address space.
There are many areas of IPv6 support available in Cisco IOS Release 12.2(33)SCA that are platform-independent and therefore, are also supported by the Cisco CMTS routers. In addition to these platform-independent features in the Cisco IOS software, there are DOCSIS 3.0 IPv6 features and legacy cable features that are modified for support of IPv6.
The IPv6 on Cable feature documentation provides references to the currently documented platform-independent features in the Cisco IOS software documentation, as well as a list of the unsupported platform-independent features. Support for new DOCSIS 3.0 IPv6 features and modifications to legacy cable features are included in this documentation.
For detailed information about this feature, see the Cisco feature document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_ipv6.html
L2VPN Support over Cable
Platforms: Cisco uBR7246VXR, Cisco uBR7225VXR, Cisco uBR10012
In Cisco IOS Release 12.2(33)SCA, the Layer 2 VPN (L2VPN) Support over Cable feature on the Cisco CMTS provides point-to-point Transparent LAN Service (TLS) in support of the Business Services over DOCSIS (BSOD) CableLabs specification.
The L2VPN Support over Cable feature in Cisco IOS release 12.2(33)SCA differs from prior L2VPN and TLS support for cable in Cisco IOS release 12.3BC in the following ways:
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For detailed information about this feature, see the Cisco feature document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_l2vpn.html
MPLS HA
Platforms: Cisco uBR10012
The Multiprotocol Label System (MPLS) high availability (HA) features provide SSO and NSF capability to the MPLS Label Distribution Protocol (LDP) and MPLS Virtual Private Network (VPN) features.
The following MPLS HA features have the ability to continue forwarding data following a PRE2 switchover on the Cisco uBR10012 universal broadband router:
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When you enable MPLS HA, you get the benefit of allowing a PRE2 on the Cisco uBR10012 universal broadband router to recover from disruption in service without losing its LDP bindings, MPLS forwarding state, and VPN prefix information.
Restrictions for MPLS HA on the Cisco uBR10012 Universal Broadband Router
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For an overview of MPLS HA and more information about these features, refer to the "MPLS High Availability: Overview" document at:
http://www.cisco.com/en/US/docs/ios/12_2s/feature/guide/fshaov.html
Multicast VPN and DOCSIS 3.0 Multicast QoS support
Platforms: Cisco uBR7246VXR, Cisco uBR7225VXR, Cisco uBR10012
In Cisco IOS Release 12.2(33)SCA, the Cisco universal broadband routers support the following multicast features:
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The Multicast VPN (MVPN) feature allows a service provider to configure and support multicast traffic in a MPLS-VPN environment. This feature supports routing and forwarding of multicast packets for each individual VPN routing and forwarding (VRF) instance, and it also provides a mechanism to transport VPN multicast packets across the service provider backbone.
The MVPN feature allows an Internet service provider (ISP) to provide its MPLS-VPN customers the ability to transport their Multicast traffic across MPLS packet-based core network. The C-Multicast packet is encapsulated inside a P-Packet with a configured multicast address, instead of the usual MPLS tagging. Supported encapsulation methods include a GRE tunnel and IP-IP.
As part of the multicast enhancements introduced in Cisco IOS Release 12.2(33)SCA, the Cisco universal broadband routers also support DOCSIS 3.0 Multicast QoS. The implementation consists of group QoS configuration (GQC) in global configuration and association of a particular GQC with a physical downstream interface in interface configuration mode. The Multicast QOS profile defines the necessary information for GQC, and the association with a physical interface provides the MAC Domain and downstream channel set (DCS) information.
In the enhanced multicast echo feature, the Layer 3 multicast switching path uses a parallel express forwarding (PXF) multicast routing table instead of the existing multicast echo path. Therefore, upstream packets are echoed using the Layer 3 switching path and all upstream data packets are treated similarly to the ingress packets from a WAN interface, in which they pass through existing classifiers and service flows.
Intelligent multicast admission control explicitly acknowledgments of the establishment of each multicast session, does not consume additional bandwidth for multicast flows once the first flow is established, and cleans up service flows as the multicast session is torn down.
Restrictions for Multicast VPN and DOCSIS 3.0 Multicast QoS on the Cisco uBR10012 Universal Broadband Router
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For detailed information about this feature, see the Cisco feature document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_enhanced_multicast.html
NSF/SSO
Platforms: Cisco uBR10012
Cisco Nonstop Forwarding (NSF) and Stateful Switchover (SSO) allows for continuous packet forwarding during a route processor (RP) fail over. This feature adds NSF/SSO support in Cisco IOS Release 12.2(33)SCA for the Cisco uBR10012 router, specifically for the DOCSIS protocol.
To protect the system from an RP failure, two RPs are used. One RP is the Active RP and the other is the Standby RP. If the Active RP becomes inactive because of hardware or software failure, the router can switchover to the Standby RP. SSO maintains the Layer 2 connectivity protocols between devices while NSF continues to forward IP packets during the route convergence time. The result is a transparent RP failure; there are no loss sessions or route flaps in the network.
In Cisco IOS Release 12.2(33)SCA, SSO is the default Performance Routing Engine (PRE) redundancy behavior on the Cisco uBR10012 Universal Broadband Router, with Route Processor Redundancy (RPR) as the fallback mode. In this release you can change the redundancy mode using the mode redundancy configuration command.
You can force a PRE switchover using the redundancy force-switchover main-cpu privileged EXEC command from either the primary or standby PRE. If you force a switchover from the active PRE, the PREs synchronize and the active PRE reloads normally. When you force a switchover from the standby PRE, a crash dump of the active PRE occurs by design for troubleshooting purposes. Forcing a switchover from the standby PRE should only be done if you cannot access the active PRE.
The following new commands or keywords are introduced in this release:
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For more information about redundancy features and High Availability on the Cisco CMTS routers, see the Cisco IOS CMTS Cable Software Configuration Guide at: http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/12_2sc/cbl_12_2sc_book.html
For information about other NSF/SSO-related features, see also:
OSPF Graceful Restart
Platforms: Cisco uBR10012
This feature adds support for OSPF Graceful Restart feature in support of RFC 3623 in Cisco IOS Release 12.2SC. OSPF Graceful Restart support is introduced in Cisco IOS Release 12.3(21)BC.
For more information about the OSPF Graceful Restart feature, refer to the "NSF—OSPF (RFC 3623 OSPF Graceful Restart" document at:
http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/gr_ospf.html
Service Independent Intercept on the Cisco CMTS
Platforms: Cisco uBR7246VXR, Cisco uBR7225VXR, Cisco uBR10012
In Cisco IOS Release 12.2SC, the Service Independent Intercept (SII) feature enhances the current Lawful Intercept (LI) capability for the Cisco uBR7246VXR, Cisco uBR7225VXR, and Cisco uBR10012 Universal Broadband Routers using SNMPv3.
In other Cisco IOS Releases prior to 12.2SC on the Cable Modem Termination System (CMTS) routers, LI capability includes the following support:
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SII extends this LI capability in Cisco IOS Release 12.2SC by adding support for CPE-based and CM-based MAC intercepts using SNMPv3.
For detailed information about this feature, see the Cisco feature document at:
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_siiv2.html
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
For information about the MIBs supported by the Cisco universal broadband routers, see the Cisco CMTS Universal Broadband Series Router MIB Specifications Guide.
New and Changed MIB Information in Cisco IOS Release 12.2(33)SCB
The Cisco universal broadband routers include or add support for the following MIBs in Cisco IOS Release 12.2(33)SCB:
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For information about the MIBs supported by the Cisco universal broadband routers, see the Cisco CMTS Universal Broadband Series Router MIB Specifications Guide 12.2 SC.
New and Changed MIB Information in Cisco IOS Release 12.2(33)SCA
The Cisco universal broadband routers include or add support for the following MIBs in Cisco IOS Release 12.2(33)SCA:
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Limitations and Restrictions
This section describes restrictions for the Cisco universal broadband routers in Cisco IOS Release 12.2(33)SCA1.
Unsupported Hardware
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Software Feature Restrictions
This section describes some other important guidelines or restrictions to consider when running Cisco IOS Release 12.2SC that might not yet be documented in the supporting customer documentation.
DOCSIS
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DTI Card Configuration
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Load Balancing
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Cable5/1/4: Bad rx packet. JIB status code 0xAThe issue occurs on upstream channels that use a "shared" connector, where the other upstream channel using the same shared connector is on another downstream and is shutdown. To workaround this issue, you can activate the downstream and other upstream channel using the same shared connector or temporarily unshare the upstream connector.
Wideband
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The WB interface CIR bandwidth can be shared by multiple MAC domain hosts, and these MAC domain hosts could potentially be on the same or different cable line cards. As admission control for WB interfaces happens on cable line cards, the available CIR bandwidth gets partitioned and given to the MD hosts causing the bandwidth fragmentation. However if a typical service flow CIR is very small compared to the total CIR of the wideband interface, then this fragmentation is not visible until the CIR usage reaches very high levels close to the total interface bandwidth.
With certain bandwidth percent configuration and traffic distribution, the overall link utilization of dynamic bandwidth sharing (DBS) can be as low as 85%. For example, this can occur if the traffic rate on a wideband interface is smaller than its configured bandwidth percent, but the traffic rate on a modular-cable interface is much larger than its bandwidth percent. The packet drops happen only on the modular-cable interface which has a larger amount of traffic than its bandwidth-percent. To workaround this scenario, configure a higher bandwidth percentage to the modular-cable interface, which is larger than or equal to its expected/average traffic rate.
Important Notes
Important Changes in Cisco IOS Release 12.2SC
Note
The changes documented in Table 14 identify some of the key changes that you should consider when running Cisco IOS Release 12.2SC.
Documentation Updates
This section describes important topics that might not be available in the customer documentation.
Changes
Command-Line Interface Changes and Notes.
The following command-line interface (CLI) changes in Cisco IOS Release 12.2(33)SCB might not be available in the customer documentation:
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Router# clear arpYou are about to delete all ARP cache entries!Severe impact on CMTS performance and temporary outages may result.Consider 'clear ip arp' instead. Continue? (yes/[no]): no•
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Caveats
Caveats information for the universal broadband router platforms is provided in the following documents located on Cisco.com:
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Related Documentation
The following sections describe the documentation available for Cisco IOS Release 12.2SC. These documents consist of hardware and software installation guides, Cisco IOS configuration and command reference publications, system error messages, feature modules, and other documents.
Documentation is available online on Cisco.com.
Use these release notes with the following resources:
Release-Specific Documents
This section provides information about release-specific documents.
Cisco IOS Release 12.2SB
For detailed information about release-specific documents for Cisco IOS Release 12.2SB, see the Cisco IOS Release 12.2SB Documentation Roadmap:
http://www.cisco.com/en/US/docs/ios/12_2sb/feature/guide/sb_rdmap.html
Configuration guides, command references, system message guides, product bulletins, field notices, and other release-specific documents for Cisco IOS Release 12.2SB are located on Cisco.com at:
Support: Cisco IOS Software: Cisco IOS Software Release 12.2 S Family: Cisco IOS Software Releases 12.2SB
Cisco IOS Release 12.2SRC
For detailed information about release-specific documents for Cisco IOS Release 12.2SRC, see the Cisco IOS Release 12.2SR Introduction:
http://www.cisco.com/en/US/products/ps6922/tsd_products_support_series_home.html
Configuration guides, command references, system message guides, product bulletins, field notices, and other release-specific documents for Cisco IOS Release 12.2SR are located on Cisco.com at:
Support: Cisco IOS Software: Cisco IOS Software Release 12.2 S Family: Cisco IOS Software Releases 12.2SR
Cisco IOS Release 12.2
The following documents are specific to Cisco IOS Release 12.2 and are located on Cisco.com:
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On Cisco.com at
Support: Documentation: Cisco IOS Software: Cisco IOS Software Release 12.2 Family: Cisco IOS Software Releases 12.2 Mainline: Release Notes
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On Cisco.com at
Support: Documentation: Cisco IOS Software: Cisco IOS Software Release 12.2 Family: Cisco IOS Software Releases 12.2 Mainline
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As a supplement to the caveats listed in the "Caveats" section in these release notes, see the Cross-Platform Release Notes for Cisco IOS Release 12.2, which contain caveats applicable to all platforms for all maintenance releases of Release 12.2.
On Cisco.com at
Support: Documentation: Cisco IOS Software: Cisco IOS Software Release 12.2 Family: Cisco IOS Software Releases 12.2 Mainline: Release Notes
Platform-Specific Documents
This section provides information about platform-specific documents available for the Universal Broadband Router hardware and software supported in Cisco IOS Release 12.2SC:
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Cisco uBR7200 Series Universal Broadband Routers Documents
These documents are available for the Cisco uBR7200 Series Universal Broadband Router hardware and software supported in Cisco IOS Release 12.2SC:
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Cisco uBR7200 Series Universal Broadband Routers Hardware Documents
These documents are available for the Cisco uBR7200 Series Universal Broadband Routers hardware supported in Cisco IOS Release 12.2SC on Cisco.com at:
Support: Video, Cable, and Content Delivery: Cable Modem Termination Systems (CMTSs): Cisco uBR7200 Series Universal Broadband Routers: Install and Upgrade Guides
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Cisco uBR7200 Series Universal Broadband Routers Software Documents
These documents are available for the Cisco uBR7200 Series Universal Broadband Routers software features supported in Cisco IOS Release 12.2SC on Cisco.com at:
Support: Video, Cable, and Content Delivery: Cable Modem Termination Systems (CMTSs): Cisco uBR7200 Series Universal Broadband Routers: Configuration Guides
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Cisco uBR10012 Universal Broadband Router Documents
These documents are available for the Cisco uBR7200 Series Universal Broadband Router hardware and software supported in Cisco IOS Release 12.2SC:
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Cisco uBR10012 Universal Broadband Router Hardware Documents
These documents are available for the Cisco uBR10012 Universal Broadband Router hardware supported in Cisco IOS Release 12.2SC on Cisco.com at:
Support: Video, Cable, and Content Delivery: Cable Modem Termination Systems (CMTSs): Cisco uBR10012 Universal Broadband Router: Install and Upgrade Guides
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Cisco uBR0012 Universal Broadband Router Software Documents
These documents are available for the Cisco uBR10012 Universal Broadband Router software features supported in Cisco IOS Release 12.2SC on Cisco.com at:
Support: Video, Cable, and Content Delivery: Cable Modem Termination Systems (CMTSs): Cisco uBR10012 Universal Broadband Router: Configuration Guides
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Other Universal Broadband Router Documentation
These documents provide additional information for the Cisco universal broadband routers in Cisco IOS Release 12.2SC on Cisco.com:
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Feature Modules
Feature modules describe new features supported by Cisco IOS Release 12.2SC and are updates to the Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the feature modules are available online only. Feature modules for Cisco IOS Release 12.2SC are available at:
http://www.cisco.com/en/US/products/ps9486/products_feature_guides_list.html
Cisco Feature Navigator
Cisco IOS software is packaged in feature sets that are supported on specific platforms. To get updated information regarding platform support for this feature, access Cisco Feature Navigator. Cisco Feature Navigator dynamically updates the list of supported platforms as new platform support is added for the feature.
Cisco Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS and Catalyst OS 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 release. Under the release section, you can compare releases side by side to display both the features unique to each software release and the features in common.
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:
Cisco IOS Software Documentation Set
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command reference publications, and several other supporting documents.
Documentation Modules
Each module in the Cisco IOS documentation set consists of one or more configuration guides and one or more corresponding command references. Chapters in a configuration guide describe protocols, configuration tasks, and Cisco IOS software functionality, and contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide with its corresponding command reference.
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Support: Documentation: Cisco IOS Software: Cisco IOS Software Release 12.2 Family: Cisco IOS Software Releases 12.2 Mainline: Configure: Configuration Guides
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Support: Documentation: Cisco IOS Software: Cisco IOS Software Release 12.2 Family: Cisco IOS Software Releases 12.2 Mainline: Reference Guides: Command References
Cisco IOS Release 12.2 Documentation Set Contents
Table 8 lists the contents of the Cisco IOS Release 12.2 software documentation set.
On Cisco.com at
Support: Documentation: Cisco IOS Software: Cisco IOS Software Release 12.2 Family: Cisco IOS Software Releases 12.2 Mainline
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.
This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
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