Table Of Contents
Release Notes for the Cisco uBR10012 Universal Broadband Router for Cisco IOS Release 12.2 XF
The Cisco uBR10012 Universal Broadband Router
Cisco uBR10012 Router Cable Interface
Determining Your Software Release
Upgrading to a New Software Release
Configuring the Routing Protocol Causes a Reset of the Cable Modems
No New Hardware Features in Release 12.2(1)XF1
New Software Feature in Release 12.2(1)XF1
New Hardware Features in Release 12.2(1)XF
New Software Feature in Release 12.2(1)XF
Open Caveats for Release 12.2(1)XF1
Closed and Resolved Caveats for Release 12.2(1)XF1
Cisco IOS Software Documentation Set
Release 12.2 Documentation Set
Obtaining Technical Assistance
Contacting TAC by Using the Cisco TAC Web Site
Release Notes for the Cisco uBR10012 Universal Broadband Router for Cisco IOS Release 12.2 XF
June 4, 2001
These release notes for the Cisco uBR10012 series universal broadband router describe the enhancements and caveats provided in Cisco IOS Release 12.2(1)XF1—the first release that supports this router. For a list of the software caveats that apply to Cisco IOS Release 12.2(1)XF1, see the "Caveats" section.
Cisco IOS Release 12.2(1)XF1 supports the Cisco uBR10012 universal broadband router.
Note You can find the most current Cisco IOS documentation on Cisco.com. This set of electronic documents may contain updates and modifications made after the hard-copy documents were printed.
Contents
These release notes describe the following topics:
•MIBs
•Obtaining Technical Assistance
Introduction
For information on new features and Cisco IOS commands supported by Cisco IOS Release 12.2(1)XF1, see the "New and Changed Information" section and the "Related Documentation" section.
Cisco IOS Release 12.2(1)XF1 introduces the Cisco uBR10012 Universal Broadband Router, which provides a high-capacity, high-throughput cable modem termination system (CMTS), optimized for aggregating traffic at the edge of the cable network. Designed for cable operators and service providers, the 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 has been designed as a high-capacity platform that places a new level of intelligence at the edge of the network, enabling cable service providers to maximize their revenues by delivering more feature-rich services to their customers. The Cisco uBR10012 uses the industry-proven Parallel eXpress Forwarding (PXF) technology, derived from the Cisco ESR10000 Edge Services Router, to provide consistent, high-performance throughput, even as software features are added and additional services are deployed.
In addition, it supports a variety of broadband access technologies, including Data-over-Cable Service Interface Specification (DOCSIS), gigabit ethernet, and optical. With support for multiple standards, operators can choose the appropriate services and devices to optimize their capital investment with a single CMTS platform. With access to current and future software enhancements, the Cisco uBR10012 also ensures investment protection as standards and customer needs continue to evolve.
Cable companies and Internet service providers (ISPs) can allocate radio frequency (RF) channel capacity for Internet access or high priority services using a hybrid fiber/coax (HFC) or an all-coax cable plant. Cisco currently provides two router-based DOCSIS CMTS solutions that offer a wider feature set and better manageability than bridge-based systems.
The Cisco uBR10012 Universal Broadband Router
The Cisco uBR10012 universal broadband router brings the powerful performance and proven reliability of the industry-leading, DOCSIS-qualified Cisco uBR7200 series universal broadband router product line to the next level of performance, capacity, and throughput. The Cisco uBR10012 platform provides a complete, easy-to-use, integrated router and cable modem termination system (CMTS) package, with feature-rich software and unparalleled customer service and support. With access to current and future software enhancements, the Cisco uBR10012 routers also ensure investment protection as standards evolve.
The Cisco uBR10012 router supports up to eight cable interface line cards. Cisco IOS Release 12.2(1)XF1 supports the Cisco uBR-LCP-MC28C line card, based on the existing Cisco uBR-MC28C line card, with two downstreams and eight upstreams divided into two domains. This provides the ability to support a large volume of cable modem subscribers using only one chassis.
For connection to the Internet and other networks, the Cisco uBR10012 router supports up to four network uplink line cards, each of which can support connections as fast as 1Gb/s (Gigabit Ethernet). Cisco IOS Release 12.2(1)XF1 supports OC-12 POS and Gigabit Ethernet connectivity.
Note This guide focuses on Cisco uBR10012 software. For detailed descriptions of the Cisco uBR10012 router chassis and components, see the Cisco uBR10000 Series Hardware Installation Guide and the appropriate field replaceable unit (FRU) documents.
Cisco uBR10012 Router Cable Interface
The cable interface in the Cisco uBR10012 router serves as the RF cable TV interface, supporting downstream and upstream signals. The downstream is output as an IF signal suitable for use with an external upconverter. Your cable plant, combined with your planned and installed subscriber base, service offering, and external network connections, determines what combination of Cisco uBR10012 cable interfaces, network uplink line cards, and other components that you should use.
System Requirements
This section describes the system requirements for Cisco Release 12.2(1)XF1 and includes the following sections:
•Determining Your Software Release
•Upgrading to a New Software Release
Memory Recommendations
Table 1 displays the memory recommendations of the Cisco IOS feature sets for the Cisco uBR10012 series universal broadband routers for Cisco IOS Release 12.2(1)XF1. Cisco uBR10012 series universal broadband routers are available with a 48-MB or 120-MB Type II PCMCIA Flash memory card.
Supported Hardware
For detailed descriptions of the new hardware features, see the "New and Changed Information" section. Cisco IOS Release 12.2(1)XF1 supports the following hardware on Cisco uBR10012 routers:
Note The Cisco uBR10012 router is compatible with Cisco Broadband Troubleshooter 2.0 and Cisco Cable Manager 2.0.
Determining Your Software Release
To determine the version of Cisco IOS software running on the Cisco uBR10012 universal broadband router, log in to the router and enter the show version EXEC command:
Router> show versionCisco Internetwork Operating System SoftwareIOS (tm) 12.2 XF Software (uBR10000-is-mz), Version 12.2(1)XF1, RELEASE SOFTWAREUpgrading to a New Software Release
For general information about upgrading to a new software release, see Cisco IOS Upgrade Ordering Instructions located at: http://www.cisco.com/warp/public/cc/cisco/mkt/ios/prodlit/957_pp.htm.
Feature Set Tables
The Cisco IOS software is packaged in feature sets consisting of software images—depending on the platform. Each feature set contains a specific set of Cisco IOS features.
Table 3 lists the features and feature sets supported by the Cisco uBR10000 series in Cisco IOS Release 12.2(1)XF1 and uses the following conventions:
•Yes—The feature is supported in the software image.
•No—The feature is not supported in the software image.
Note This table might not be cumulative or list all the features in each image. You can find the most current Cisco IOS documentation on Cisco.com. These electronic documents may contain updates and modifications made after the hard-copy documents were printed. For a list of the 12.1 T-train features in this platform, refer to Feature Navigator. For more information about Feature Navigator, see the "Feature Navigator" section.
Table 3 Feature List by Feature Sets for Cisco uBR10012 Series Universal Broadband Routers
Feature Feature Set DOCSIS IP Plus DOCSIS IP Plus with BPI IP RoutingDHCP1 Server
Yes
Yes
DRP2 Server Agent
Yes
Yes
IP Enhanced IGRP3 Route Authentication
Yes
Yes
ManagementCisco Call History MIB Command Line Interface
Yes
Yes
Cisco IOS Internationalization
Yes
Yes
DOCSIS Ethernet MIB Objects Support (RFC 2665)
Yes
Yes
DOCSIS OSSI4 Objects Support (RFC 2233)
Yes
Yes
Dynamic Ranging Support
Yes
Yes
Entity MIB, Phase 1
Yes
Yes
Interface Command Enhancements
Yes
Yes
Internal Modem Configuration File Editor
Yes
Yes
MIB Enhancements
Yes
Yes
BPI5 MIB
No
Yes
LinkUp/Down Traps Support (RFC 2233)
Yes
Yes
RF Interface MIB
Yes
Yes
Yes
Yes
MultimediaBidirectional PIM8
Yes
Yes
Stub IP Multicast Routing
Yes
Yes
Quality of ServiceDynamic Upstream Modulation
Yes
Yes
DOCSIS 1.0+9 QoS Enhancements
Yes
Yes
Downstream QoS Handling
Yes
Yes
Downstream Traffic Shaping
Yes
Yes
Dynamic Map-Advance
Yes
Yes
Improved Upstream QoS
Yes
Yes
Multiple SID Support (static only)
Yes
Yes
QoS Configuration
Yes
Yes
QoS Profile Enforcement
Yes
Yes
Read/Create Implementation of QoS
Yes
Yes
RTP10 Header Compression
Yes
Yes
Time of Day (ToD) Server
Yes
Yes
Upstream Address Verification
Yes
Yes
Upstream Traffic Shaping
Yes
Yes
SecurityAutomated Double Authentication
Yes
Yes
BPI Encryption
No
Yes
Cisco IOS Firewall Enhancements
Yes
Yes
Dynamic Mobile Hosts
Yes
Yes
HTTP11 Security
Yes
Yes
Named Method Lists for AAA12 Authorization & Accounting
Yes
Yes
Per-User Configuration
Yes
Yes
VPNMPLS VPN Support for Subinterfaces and Interface Bundles
Yes
Yes
WAN OptimizationPAD13 Subaddressing
Yes
Yes
1 DHCP = Dynamic Host Configuration Protocol
2 DRP = Director Response Protocol
3 IGRP = Interior Gateway Routing Protocol
4 OSSI = Operations Support System Interface
5 BPI = Baseline Privacy Interface
6 SNMPv2 = Simple Network Management Protocol version 2
7 SNMPv3 = Simple Network Management Protocol version 3
8 PIM = Protocol Independent Multicast
9 The DOCSIS 1.0+ QoS Enhancements is a set of Cisco's Quality of Service extensions to DOCSIS 1.0 to enable basic VoIP service over the DOCSIS link before DOCSIS 1.1 becomes available. The main enhancements include support for dynamic creation and teardown of flows during voice calls, support for one new unsolicited grant service (UGS) slot scheduling mechanism for voice slots, and per IP-precedence rate shaping on the downstream.
10 RTP = Real-Time Transport Protocol
11 HTTP = Hypertext Transfer Protocol
12 AAA =authentication, authorization, and accounting
13 PAD = packet assembler/disassembler
Important Notes
The following sections contain important notes about Cisco IOS Release 12.2(1)XF1 that apply to Cisco uBR10012 series universal broadband routers.
Configuring the Routing Protocol Causes a Reset of the Cable Modems
Be aware that when configuring a routing protocol on an interface, the Cisco IOS software must reset the interface to enable the change. This normally does not significantly affect operations on the interface, except that when this is done on a cable interface, it causes all cable modems on that particular downstream to reinitialize, potentially interfering with data transmission on that downstream. Therefore you should use the interface configuration commands, such as router rip, on a cable interface only when a minimum of subscribers would be affected.
New and Changed Information
The following sections list the new hardware and software features supported by the Cisco uBR10000 series routers for Cisco IOS Release 12.2 XF.
No New Hardware Features in Release 12.2(1)XF1
Cisco IOS Release 12.2(1)XF1 does not include support for any new hardware features.
New Software Feature in Release 12.2(1)XF1
Cisco IOS Release 12.2(1)XF1 adds software support for DOCSIS Baseline Privacy Interface (BPI) encryption and authentication.
New Hardware Features in Release 12.2(1)XF
Cisco IOS Release 12.2(1)XF introduces the Cisco uBR10012 router chassis and the FRU components described in Cisco uBR10000 Series Universal Broadband Router Hardware Installation Guide and the Field Replaceable Units (FRUs) documents.
New Software Feature in Release 12.2(1)XF
Cisco IOS Release 12.2(1)XF introduces software support for the Cisco uBR10012 router, as described in the Cisco uBR10000 Series Universal Broadband Router Software Configuration Guide.
MIBs
Current MIBs
To obtain lists of supported MIBs by platform and Cisco IOS release, and to download MIB modules, go to the Cisco MIB web site on Cisco.com at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
Supported MIBs
The Cisco uBR10000 series universal broadband routers support the following categories of MIBs:
•SNMP standard MIBs—These MIBs are required by any agent supporting SNMPv1 or SNMPv2 network management.
•Cisco's platform and network-layer enterprise MIBs—Common across most of Cisco's router platforms. If your network management applications are already configured to support other Cisco routers, such as the 2600 series router, no further configuration is needed unless the version of Cisco IOS software being used has updated these MIBs.
•Cable-specific MIBs—Provide information about the cable interfaces and related information on the uBR10000 series routers. They include both DOCSIS-specific MIBs and Cisco-specific enterprise MIBs. If your network management applications have not already been configured for the Cisco uBR10012 routers, these MIBs must be loaded.
•Deprecated MIBs—Supported in earlier releases of Cisco IOS software but have been replaced by more standardized, scalable MIBs. Network Management applications and scripts should convert to the replacement MIBs as soon as possible.
•CISCO-ENTITY-VENDORTYPE-OID-MIB
The cable-specific MIBs are described in the following section. For information on the SNMP standard MIBs and Cisco's platform and network-layer enterprise MIBs, see Cisco's MIB web site at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
Cable-Specific MIBs
Table 4 shows the cable-specific MIBs that are supported on the Cisco uBR10000 series universal broadband routers. The table also provides a brief description of each MIB's contents and the Cisco IOS Software Release in which the MIB was initially functional—earlier releases might have had unsupported prototype versions of the MIB; later releases might have added new attributes and functionality. Because of interdependencies, the MIBs must be loaded in the order given in the table.
Note The names given in Table 4 are the filenames for the MIBs as they exist on Cisco's FTP site (ftp://ftp.cisco.com/pub/mibs/ or http://www.cisco.com/public/mibs). Most MIBs are available in both SNMPv1 and SNMPv2 versions; the SNMPv1 versions have V1SMI as part of their filenames.
Deprecated MIBs
Old Cisco MIBs will be replaced in a future release. Currently, OLD-CISCO-* MIBs are being converted into more scalable MIBs without affecting existing Cisco IOS products or network management system (NMS) applications. You can update from deprecated MIBs to the replacement MIBs as shown in Table 5.
Note Some of the MIBs listed in Table 5 represent feature sets that are not supported on Cisco uBR10012 universal broadband routers.
Note Cisco Management Information Base (MIB) User Quick Reference is no longer published. If you have an account with Cisco.com, you can find the current list of MIBs supported by Cisco. To reach the Cisco Network Management Toolkit, go to Cisco.com, press Login, and then go to Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB.
Caveats
Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious. Severity 3 caveats are moderate caveats, and only selected severity 3 caveats are included in the caveats document.
All caveats in Cisco IOS Release 12.2 are also in Cisco IOS Release 12.2(1)XF1.
For information on caveats in Cisco IOS Release 12.2, see Caveats for Cisco IOS Release 12.2. This document lists severity 1 and severity 2 caveats and only selected severity 3 caveats, and is located on Cisco.com and the Documentation CD-ROM.
Caveat numbers and brief descriptions are listed in Table 6 and Table 7. For details about a particular caveat, go to Bug Toolkit at:
http://www.cisco.com/kobayashi/bugs/bugs.html
To access this location, you must have an account on Cisco.com. For information about how to obtain an account, go to the "Feature Navigator" section.
Note If you have an account with Cisco.com, you can use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II, log in to Cisco.com and click Software Center: Cisco IOS Software: Cisco Bugtool Navigator II. Another option is to go to http://www.cisco.com/support/bugtools/.
Open Caveats for Release 12.2(1)XF1
All the caveats listed in Table 6 are open in Cisco IOS Release 12.2(1)XF1. This table lists only severity 1 and 2 caveats and select severity 3 caveats.
Closed and Resolved Caveats for Release 12.2(1)XF1
All the caveats listed in Table 7 are resolved in Cisco IOS Release 12.2(1)XF1. This table lists only severity 1 and 2 caveats and select severity 3 caveats.
Related Documentation
The following sections describe the documentation available for the Cisco uBR10012 series. These documents consist of hardware and software installation guides, Cisco IOS configuration guides and command references, system error messages, and other documents.
Documentation is available as printed manuals or electronic documents. Use these release notes with these documents:
•Cisco IOS Software Documentation Set
Release-Specific Documents
The following documents are specific to Release 12.2 and are located on Cisco.com and the Documentation CD-ROM:
•Product bulletins, field notices, and other release-specific documents on Cisco.com, beginning under the Service & Support heading:
Technical Documents
•Caveats for Cisco IOS Release 12.2
On Cisco.com, beginning under the Service & Support heading:
Technical Documents: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Release Notes: Caveats: Caveats for Release 12.2
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.2: Caveats
Note If you have an account with Cisco.com, you can use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II, log in to Cisco.com and click Software Center: Cisco IOS Software: Cisco Bugtool Navigator II. Another option is to go to http://www.cisco.com/support/bugtools/.
Platform-Specific Documents
The following related documents are available on Cisco.com and the Documentation CD-ROM:
•Cisco uBR10012 Series Hardware Installation Guide
•Cisco uBR10012 Series Software Configuration Guide
•Cisco uBR10012 Series Troubleshooting Guide
•Field Replaceable Units (FRUs)
•Broadband Command Consolidation
Note Some of the above documentation will not be available on Cisco.com until the official release of the Cisco uBR10000 series router and its public software release.
On Cisco.com, beginning under the Service & Support heading:
Technical Documents: Broadband/Cable Solutions: Cisco uBR10000 Series Universal Broadband Routers
Note The Broadband Command Consolidation is available on Cisco.com through the following path:
Technical Documents: Broadband/Cable Solutions
On the Documentation CD-ROM:
Cisco Product Documentation: Broadband/Cable Solutions: Cisco uBR10000 Series Universal Broadband Routers
Note The Broadband Command Consolidation is available on the Documentation CD-ROM through the following path:
Cisco Product Documentation: Broadband/Cable Solutions
Tips Information about features of the Cisco uBR10012 series universal broadband router, as well as software release notes, are available on Cisco.com at:
http://www.cisco.com/univercd/cc/td/doc/product/cable/ubr10k/index.htm.
Feature Navigator
Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS software images support a particular set of features and which features are supported in a particular Cisco IOS image.
Feature Navigator is available 24 hours a day, 7 days a week. To access Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, e-mail the Contact Database Administration group at cdbadmin@cisco.com. If you do not have an account on Cisco.com, go to http://www.cisco.com/register and follow the directions to establish an account.
To use Feature Navigator, you must have a JavaScript-enabled web browser such as Netscape 3.0 or later, or Internet Explorer 4.0 or later. Internet Explorer 4.0 always has JavaScript enabled. To enable JavaScript for Netscape 3.x or Netscape 4.x, follow the instructions provided with the web browser. For JavaScript support and enabling instructions for other browsers, check with the browser vendor.
Feature Navigator is updated when major Cisco IOS software releases and technology releases occur. It contains feature information about mainline-, T-, S-, and P-trains. You can access Feature Navigator at the following URL:
http://www.cisco.com/go/fn
Cisco IOS Software Documentation Set
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents. The Cisco IOS software documentation set is shipped with your order in electronic form on the Documentation CD-ROM, unless you specifically ordered the printed versions.
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.
On Cisco.com and the Documentation CD-ROM, two master hot-linked documents provide information for the Cisco IOS software documentation set.
On Cisco.com, beginning under the Service & Support heading:
Technical Documents: Cisco IOS Software Configuration: Cisco IOS Release 12.2: Configuration Guides and Command References
On the Documentation CD-ROM:
Cisco IOS Software Configuration: Cisco IOS Release 12.2: Configuration Guides and Command References
Release 12.2 Documentation Set
Note You can find the most current Cisco IOS documentation on Cisco.com and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the paper documents were printed.
On Cisco.com, beginning under the Service & Support heading:
Technical Documents: Cisco IOS Software Configuration: Cisco IOS Release 12.2: Configuration Guides and Command References
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.2: Configuration Guides and Command References
Note The Cisco Management Information Base (MIB) User Quick Reference publication is no longer published. For the latest list of MIBs supported by Cisco, see Cisco Network Management Toolkit on Cisco.com. From Cisco.com, click on the following path: Service & Support: Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB.
Obtaining Documentation
The following sections provide sources for obtaining documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com. Translated documentation can be accessed at http://www.cisco.com/public/countries_languages.shtml.
Documentation CD-ROM
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Ordering Documentation
Cisco documentation is available in the following ways:
•Registered Cisco Direct Customers can order Cisco product documentation from the Networking Products MarketPlace:
http://www.cisco.com/cgi-bin/order/order_root.pl
•Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store:
http://www.cisco.com/go/subscription
•Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, in North America, by calling 800 553-NETS(6387).
Documentation Feedback
If you are reading Cisco product documentation on the World Wide Web, you can submit technical comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco.
You can e-mail your comments to bug-doc@cisco.com.
To submit your comments by mail, for your convenience many documents contain a response card behind the front cover. Otherwise, you can mail your comments to the following address:
Cisco Systems, Inc.
Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com registered users, additional troubleshooting tools are available from the TAC web site.
Cisco.com
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.
Cisco.com provides a broad range of features and services to help customers and partners streamline business processes and improve productivity. Through Cisco.com, you can find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online technical support, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.
Customers and partners can self-register on Cisco.com to obtain additional personalized information and services. Registered users can order products, check on the status of an order, access technical support, and view benefits specific to their relationships with Cisco.
To access Cisco.com, go to the following web site:
http://www.cisco.com
Technical Assistance Center
The Cisco TAC web site is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract.
Contacting TAC by Using the Cisco TAC Web Site
If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC web site:
http://www.cisco.com/tac
P3 and P4 level problems are defined as follows:
•P3—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.
•P4—You need information or assistance on Cisco product capabilities, product installation, or basic product configuration.
In each of the above cases, use the Cisco TAC web site to quickly find answers to your questions.
To register for Cisco.com, go to the following web site:
http://www.cisco.com/register/
If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users can open a case online by using the TAC Case Open tool at the following web site:
http://www.cisco.com/tac/caseopen
Contacting TAC by Telephone
If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and immediately open a case. To obtain a directory of toll-free numbers for your country, go to the following web site:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
P1 and P2 level problems are defined as follows:
•P1—Your production network is down, causing a critical impact to business operations if service is not restored quickly. No workaround is available.
•P2—Your production network is severely degraded, affecting significant aspects of your business operations. No workaround is available.