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Table of Contents

Release Notes for Cisco uBR7200 Series
for Cisco IOS Release 12.1 T

Release Notes for Cisco uBR7200 Series
for Cisco IOS Release 12.1 T

July 24, 2000

Note You can find the most current Cisco IOS documentation on Cisco Connection Online (CCO ). These electronic documents may contain updates and modifications made after the hardcopy documents were printed.

These release notes for the Cisco uBR7200 series Universal Broadband Routers describe the enhancements provided in Cisco IOS Release 12.1(3)T. These release notes are updated as needed.

For a list of the software caveats that apply to Release 12.1(3)T, see the "Caveats" section, the Caveats for Cisco  IOS Release 12.1 document, and the Caveats for Cisco  IOS Release 12.1 T document. The caveats documents are updated for every maintenance release and are on CCO  and the Documentation CD-ROM.

Use these release notes with Cross-Platform Release Notes for Cisco  IOS Release 12.1, located on CCO and the Documentation CD-ROM.

Contents

These release notes describe the following topics:

Introduction

The Cisco uBR7200 series Universal Broadband Routers---the Cisco uBR7223, the Cisco uBR7246, and the Cisco uBR7246 VXR---are based on the Data Over Cable Service Interface Specification (DOCSIS) standards. Each is designed to be installed at a cable operator's headend facility or distribution hub and to function as the cable modem termination system (CMTS) for subscriber-end devices such as Cisco uBR904 and Cisco uBR924 Cable Access Routers, and other DOCSIS-compliant cable modems and set top boxes (STBs).

Cisco uBR7200 series Universal Broadband Routers allow two-way transmission of digital data and Voice over IP (VoIP) traffic over a hybrid fiber coaxial (HFC) network. For cable plants not fully upgraded to support two-way cable transmission, the routers support DOCSIS-compliant telco return, where the cable modem's return path to the CMTS is via a dial-up telephone line connection instead of an upstream channel over the coaxial cable.

The introduction of the WT2700 Wireless Technology Suite also allows the Cisco uBR7223, the Cisco uBR7246, and the Cisco uBR7246 VXR Universal Broadband Routers to become a two-way high-speed point-to-point broadband fixed wireless system that provides a fixed, dedicated wireless link from one headend site to another. This link delivers full-duplex data in the licensed MMDS band (2.500 to 2.690 GHz), or unlicensed U-NII band (5.725 to 5.825 GHz). The WT2700 Wireless Technology Suite includes the wireless modem card, which is installed in the Cisco uBR7200 series chassis, and the Cisco WT2772 wireless transverter, duplexer, and power feed panel, which are external components.

The Cisco uBR7200 series routers support IP routing with a wide variety of protocols and combinations of Ethernet, Fast Ethernet, Gigabit Ethernet, serial, High-Speed Serial Interface (HSSI), Packet over SONET (POS) OC-3 and OC-12c, and Asynchronous Transfer Mode (ATM) media.

Cisco uBR7246 VXR Universal Broadband Router

The Cisco uBR7246 VXR features an I/O controller, up to two network interface port adapters, up to four cable and wireless modem cards, a high-performance network processing engine, and up to two removable power supplies providing load-sharing and redundancy capabilities. The Cisco uBR7246 VXR provides two PCMCIA slots that allow for software upgrades through the use of Flash memory cards.

Note The Cisco uBR7246 VXR chassis does not support the MC11-FPGA Cable Modem Card.

Cisco uBR7246 Universal Broadband Router

The Cisco uBR7246 features an I/O controller, up to two network interface port adapters, up to four cable and wireless modem cards, a network processing engine, and up to two removable power supplies providing load-sharing and redundancy capabilities. The Cisco uBR7246 provides two PCMCIA slots that allow for software upgrades through the use of Flash memory cards.

Cisco uBR7223 Universal Broadband Router

The Cisco uBR7223 features an I/O controller, one network interface port adapter, up to two cable and wireless modem cards, a network processing engine, and a removable power supply. (The Cisco uBR7223 does not feature load-sharing and redundant power supply capability like the Cisco uBR7246 and Cisco uBR7246 VXR.) The Cisco uBR7223 provides two PCMCIA slots that allow for software upgrades through the use of Flash memory cards.

The Cisco uBR7223 is a cost-effective, scalable interface between subscriber cable modems and the backbone data network, and is designed specifically for small to medium network installations.

Early Deployment Releases

These release notes describe the Cisco uBR7200 series Universal Broadband Routers for Cisco IOS Release 12.1(3)T. Release 12.1 T is an early deployment (ED) release based on Release 12.1; early deployment releases contain fixes to software caveats as well as support for new Cisco hardware and software features. Other early deployment releases of the Cisco uBR7200 series routers are shown in Table 1; unless otherwise indicated, feature support is cumulative from release to release.


Table 1: Early Deployment Releases for the Cisco uBR7200 Series
ED Release Additional Software Features1 Additional Hardware Features

Release 12.1(3)T

  • Circuit Interface Identification MIB

  • Expression MIB Support of Delta, Wildcarding, and Aggregation

  • Individual SNMP Trap Support

  • Source Specific Multicast

None

Release 12.1(2)T

  • Enhanced Per Modem Error Counter

  • MC16S LED Enhancement

  • MPLS VPN Support for Subinterfaces and Interface Bundles

  • SNMP Cable Modem Remote Query

None

Release 12.1(1a)T1

  • Baseline Privacy Interface (BPI) MIB

  • Cable Subinterfaces and Interface Bundling support for Virtual Private Networks

  • DOCSIS Quality of Service Enhancements

  • Enhanced Modem Status Display

  • Firewall Enhancements

  • Redirect-Number Support for RADIUS and TACACS+ Servers

  • Upstream Address Verification Enhancement

  • Broadband Wireless --- Point to Point

  • Cisco Cable Clock Card

  • MC16E Cable Modem Card

  • MC16S Cable Modem Card

1Only major features are listed. See the Release Notes for each particular release for a comprehensive feature list.

System Requirements

This section describes the system requirements for Release 12.1(3)T:

Memory Recommendations

Table 2 displays the memory recommendations of the Cisco IOS feature sets for the Cisco uBR7200 series Universal Broadband Routers for Cisco IOS Release 12.1(3)T. Cisco uBR7200 series Universal Broadband Routers are available with a 16 or 20 MB Type II PCMCIA Flash memory card.


Table 2: Memory Recommendations for the Cisco uBR7200 Series Routers, Release 12.1(3)T Feature Sets
Feature Set Software Image Required
Flash
Memory 		Required
DRAM
Memory 		Runs
From
Two-Way Data/VoIP and Wireless Images

DOCSIS Two-Way

ubr7200-p-mz

16 MB Flash

64 MB DRAM

RAM

DOCSIS Two-Way IP Plus

ubr7200-is-mz

16 MB Flash

64 MB DRAM

RAM

DOCSIS Two-Way with BPI

ubr7200-k1p-mz

16 MB Flash

64 MB DRAM

RAM

DOCSIS Two-Way IP Plus with BPI

ubr7200-ik1s-mz

16 MB Flash

64 MB DRAM

RAM

Telco Return Images

DOCSIS IP Plus Telco-Return

ubr7200-ist-mz

16 MB Flash

64 MB DRAM

RAM

DOCSIS IP Plus Telco-Return with BPI

ubr7200-ik1st-mz

16 MB Flash

64 MB DRAM

RAM

The image subset legend for Table 2 is as follows:

Note All Cisco IOS Release 12.1(3)T images require 64 MB of DRAM. All images support all of the hardware listed in "Hardware Supported,", unless otherwise indicated.

System Interoperability

This section clarifies the operation of certain features in the Cisco uBR7200 series Universal Broadband Routers:

DOCSIS Baseline Privacy Interface (BPI) gives subscribers data privacy across the RF network, encrypting traffic flows between the CMTS and CM. BPI ensures that a CM, uniquely identified by its MAC address, can obtain keying material for services only it is authorized to access.
To enable BPI, choose software at both the CMTS and CM that support the mode of operation. For the Cisco uBR7200 series software, choose an image with "k1" in its file name or BPI in the feature set description.
The CM must also support BPI. CMs must have factory-installed RSA private/public key pairs to support internal algorithms to generate key pairs prior to first BPI establishment. BPI must be enabled via the DOCSIS configuration file.
The Cisco uBR7200 series interoperates with:
The Cisco uBR7200 series support DOCSIS 1.0 QoS extensions that include:
Note All DOCSIS 1.0 extensions are activated only when a CM or Cisco uBR924 that supports these extensions solicits services via dynamic MAC messages or the feature set. If the CMs in your network are pure DOCSIS 1.0-based, they will receive regular DOCSIS 1.0 treatment from the CMTS.
The Cisco uBR7200 series support clock hardware and software to enable high-quality delivery of IP telephony services through synchronized data transmissions. To support the clock feature set, a Cisco uBR7246 VXR chassis must be used. The Cisco uBR7246 VXR must contain a clock card and an MC16S or MC16E Cable Modem Card. Only the MC16S and the MC16E Cable Modem Cards support the external clock reference from the clock card to distribute that signal to CMs or set top boxes (STBs) attached to the specific network segments. The chassis must be running Cisco IOS Release 12.1(1a)T1 or higher.
Each cable modem must also support VoIP applications and the clock reference feature set to enable synchronized timing. The Cisco uBR924 Cable Access Router, running Cisco IOS Release 12.0(7)T or later, supports clock automatically.

Hardware Supported

Cisco IOS Release 12.1(3)T supports the following Cisco uBR7200 series Universal Broadband Routers:

For detailed descriptions of the new hardware features, see the "New and Changed Information" section.

Network Processing Engines

The Cisco uBR7223 and the Cisco uBR7246 support the following Network Processing Engines (NPE) in Cisco IOS Release 12.1(3)T:

The Cisco uBR7246 VXR supports the following Network Processing Engines (NPE) in Cisco IOS Release 12.1(3)T:

NPE-175
NPE-225
NPE-300
Note The NPE-300 is not supported on the Cisco uBR7223 and the Cisco uBR7246. The NPE-150 and NPE-200 are not supported on the Cisco uBR7246 VXR.

Cable Modem Cards

Cisco IOS Release 12.1(3)T supports the following cable modem cards:

Wireless Modem Card Support for Port Adapters

Not all port adapters are supported with the wireless modem card. The HSSI, 10BaseT Ethernet, 100BaseT Ethernet, serial Frame Relay, ATM, and POS interfaces are fully supported. The Gigabit Ethernet port adapter was not supported with the wireless modem card at the time the Cisco IOS Release 12.1(3)T software was released.

Port Adapter Cards

Table 3 lists and describes the port adapters supported by Cisco uBR7200 series routers in Cisco IOS Release 12.1(3)T.

Note Not all Cisco uBR7200 series routers support all port adapters. Some port adapters must be at certain revision levels to be used in the Cisco uBR7246 VXR router.
Note Cisco IOS Release 12.1(3)T and earlier 12.1 T maintenance releases do not support Dynamic Packet Transport port adapters. Please see Limitations and Restrictions, for more information.
Note Not all port adapters are supported with the wireless modem card. The HSSI, 10BaseT Ethernet, 100BaseT Ethernet, serial Frame Relay, ATM, and POS interfaces are fully supported. The Gigabit Ethernet port adapter was not supported with the wireless modem card at the time the Cisco IOS Release 12.1(3)T software was released.


Table 3: Cisco uBR7200 Series Port Adapter Releases
Product Number Cisco uBR7223 Cisco uBR7246 Cisco uBR7246 VXR
Ethernet

PA-4E---4-port Ethernet 10BaseT port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1 1

PA-8E---8-port Ethernet 10BaseT port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1 2

PA-FE-TX---1-port 100BaseTX Fast Ethernet port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1

PA-FE-FX---1-port 100BaseFX Fast Ethernet port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1

PA-2FEISL-TX---2-port 100BaseTX Fast Ethernet port adapter with Inter-Switch Link (ISL) support

12.0(5)T1, 12.1(1a)T1

12.0(5)T1, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1

PA-2FEISL-FX---2-port 100BaseFX Fast Ethernet port adapter with Inter-Switch Link (ISL) support

12.0(5)T1, 12.1(1a)T1

12.0(5)T1, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1

PA-12E/2FE---12-port 10BaseT and 2-port 10/100BaseTX port adapter

Not applicable

12.0(5)T1, 12.1(1a)T1

Not applicable

Gigabit Ethernet

PA-GE---1-port, full-duplex, IEEE 802.3z- compliant Gigabit Ethernet (GE) port adapter3

Not applicable

Not applicable

12.0(7)T, 12.1(1a)T1

Serial

PA-4T+---4-port synchronous serial port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(10)SC, 12.1(1a)T1

PA-8T-232---8-port EIA/TIA-232 synchronous serial port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-8T-V35---8-port V.35 synchronous serial port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-8T-X21---8-port X.21 synchronous serial port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-4E1G-75---4-port unbalanced (75-ohm) E1-G.703/G.704 synchronous serial port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-4E1G-120---4-port balanced (120-ohm) E1-G.703/G.704 synchronous serial port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-E3---1-port high-speed serial E3 interface port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-T3---1-port T3 serial interface port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-2E3---2-port high-speed serial E3 interface port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-2T3---2-port T3 serial interface port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-MC-E3---1-port multi-channel E3, medium-speed serial interface port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-MC-T3---1-port T3 (channelized into 28 independent T1 data lines) port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-MC-4T1---4-port multichannel DS1 Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) single-wide port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-MC-8E1/120---8-port multichannel E1 Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) single-wide port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-MC-8T1---8-port multichannel DS1 Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) single-wide port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

HSSI

PA-H---1-port HSSI port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1 4

PA-2H---2-port HSSI port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1 5

ATM

PA-A1-OC3SMI---1-port ATM OC-3c/STM-1 single-mode intermediate reach port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-A1-OC3MM---1-port ATM OC-3c/STM-1 multimode port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-A2-4E1XC-OC3SM---5-port ATM CES6 (4 E1 120-ohm CBR7 ports and 1 OC-3 ATM single-mode port) port adapter

Not applicable

12.0(1)T, 12.1(1a)T1

Not applicable

PA-A2-4E1XC-E3ATM---5-port ATM CES6 (4 E1 120-ohm CBR7 ports and 1 E3 ATM port) port adapter

Not applicable

12.0(1)T, 12.1(1a)T1

Not applicable

PA-A2-4T1C-OC3SM---5-port ATM CES6 (4 T1 CBR7 ports and 1 OC-3 ATM single-mode port) port adapter

Not applicable

12.0(1)T, 12.1(1a)T1

Not applicable

PA-A2-4T1C-T3ATM---5-port ATM CES6 (4 T1 CBR7 ports and 1 T3 ATM port) port adapter

Not applicable

12.0(1)T, 12.1(1a)T1

Not applicable

PA-A3-E3---1-port E3 ATM, PCI-based port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-A3-T3---1-port T3 ATM, PCI-based port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

Not applicable

PA-A3-OC3MM---1-port OC-3c ATM, PCI-based multimode port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1

PA-A3-OC3SMI---1-port OC-3c ATM, PCI-based single-mode intermediate reach port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1

PA-A3-OC3SML---1-port OC-3c ATM, PCI-based single-mode long reach port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1

Packet-Over-SONET (POS)

PA-POS-OC3SML---1-port POS OC-3 single-mode, long reach port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1

PA-POS-OC3SMI---1-port OC3 single-mode, intermediate reach port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1

PA-POS-OC3MM---1-port POS OC3 multimode port adapter

12.0(5)T1, 12.1(1a)T1

12.0(1)T, 12.1(1a)T1

12.0(7)T, 12.1(1a)T1

1To use a PA-4E 4-port Ethernet 10BaseT port adapter in a Cisco uBR7246 VXR, be sure you have the minimum required hardware revision (version 1.14, part number 800-02070-04) or a more recent version of the port adapter.
2To use a PA-8E 8-port Ethernet 10BaseT port adapter in a Cisco uBR7246 VXR, be sure you have the minimum required hardware revision (version 1.14, part number 800-02069-04) or a more recent version of the port adapter.
3The Gigabit Ethernet port adapter must be combined with the appropriate optical fiber cable and a Gigabit Interface Converter (GBIC). The Gigabit Ethernet port adapter is supported in Cisco IOS Release 12.0(8)SC1 and later versions of Cisco IOS Release 12.0 SC.
4To use a PA-H 1-port HSSI port adapter in a Cisco uBR7246 VXR, be sure you have the minimum required hardware revision (version 1.17, part number 800-02747-06) or a more recent version of the port adapter.
5To use a PA-2H 2-port HSSI port adapter in a Cisco uBR7246 VXR, be sure you have the minimum required hardware revision (version 1.3, part number 800-03306-02) or a more recent version of the port adapter.
6CES = circuit emulation services.
7CBR = constant bit rate.

Determining Your Software Release

To determine the version of Cisco IOS software running on the Cisco uBR7200 series Universal Broadband Router, log in to the router and enter the show version EXEC command:

    router> show version
Cisco Internetwork Operating System Software 
IOS (tm) 12.1 T Software (ubr7200-is-mz), Version 12.1(3)T, RELEASE SOFTWARE

Upgrading 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.

Cisco IOS Release 12.1 T supports the same feature sets as Cisco IOS Release 12.1, but Cisco IOS Release 12.1 T can include new features supported by the Cisco uBR7200 series.

Table 4 lists the features and feature sets supported by the Cisco uBR7200 series in Cisco IOS Release 12.1(3)T and uses the following conventions:

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 CCO. These electronic documents may contain updates and modifications made after the hardcopy documents were printed.


Table 4: Feature List by Feature Sets for Cisco uBR7200 Series Universal Broadband Routers
Feature Feature Set
In1 DOCSIS Two-way DOCSIS Two-way with BPI DOCSIS Two-way, IP Plus DOCSIS Two-way, IP Plus, Telco Return DOCSIS Two-way, IP Plus with BPI DOCSIS Two-way, IP Plus, Telco Return with BPI
Internet
Dynamic Host Configuration Protocol (DHCP) Server

Yes

Yes

Yes

Yes

Yes

Yes

Dynamic Mobile Hosts

Yes

Yes

Yes

Yes

Yes

Yes

DRP Server Agent

Yes

Yes

Yes

Yes

Yes

Yes

Enhanced Modem Status Display

(1)

Yes

Yes

Yes

Yes

Yes

Yes

Enhanced Per Modem Error Counter

(2)

Yes

Yes

Yes

Yes

Yes

Yes

MC16S LED Enhancements

(2)

Yes

Yes

Yes

No

Yes

No

Telco-Return

No

No

No

Yes

No

Yes

Time of Day (ToD) Server

Yes

Yes

Yes

Yes

Yes

Yes

IP Routing
Easy IP (Phase 1)

Yes

Yes

Yes

Yes

Yes

Yes

Hot Standby Router Protocol (HSRP) over ISL in Virtual LAN Configurations

No

No

Yes

Yes

Yes

Yes

IP Type of Service and Precedence for GRE Tunnels

Yes

Yes

Yes

Yes

Yes

Yes

IP Enhanced IGRP Route Authentication

Yes

Yes

Yes

Yes

Yes

Yes

Per-Modem Filters

Yes

Yes

Yes

Yes

Yes

Yes

Management
Circuit Interface Identification MIB

(3)

Yes

Yes

Yes

Yes

Yes

Yes

Cisco Call History MIB Command Line Interface

Yes

Yes

Yes

Yes

Yes

Yes

Cisco IOS Internationalization

Yes

Yes

Yes

Yes

Yes

Yes

Entity MIB, Phase 1

Yes

Yes

Yes

Yes

Yes

Yes

Expression MIB Support of Delta, Wildcarding, and Aggregation

(3)

Yes

Yes

Yes

Yes

Yes

Yes

Individual SNMP Trap Support

(3)

Yes

Yes

Yes

Yes

Yes

Yes

Interface Command Enhancements

Yes

Yes

Yes

Yes

Yes

Yes

MIB Enhancements

Yes

Yes

Yes

Yes

Yes

Yes

RF Interface MIB

Yes

Yes

Yes

Yes

Yes

Yes

SNMP Cable Modem Remote Query

(2)

Yes

Yes

Yes

Yes

Yes

Yes

SNMPv2C and SNMPv3

Yes

Yes

Yes

Yes

Yes

Yes

Multimedia
Bi-Directional PIM

(1)

Yes

Yes

Yes

Yes

Yes

Yes

IP Multicast Load Splitting across Equal-Cost Paths

Yes

Yes

Yes

Yes

Yes

Yes

IP Multicast over ATM Point-to-Multipoint Virtual Circuits

Yes

Yes

Yes

Yes

Yes

Yes

IP Multicast over Token Ring LANs

Yes

Yes

Yes

Yes

Yes

Yes

Source Specific Multicast

(3)

Yes

Yes

Yes

Yes

Yes

Yes

Stub IP Multicast Routing

Yes

Yes

Yes

Yes

Yes

Yes

Quality of Service
DOCSIS 1.0 + QoS Enhancements

(1)

Yes

Yes

Yes

Yes

Yes

Yes

Downstream QoS Handling

Yes

Yes

Yes

Yes

Yes

Yes

Downstream Traffic Shaping

Yes

Yes

Yes

Yes

Yes

Yes

Upstream Traffic Shaping

Yes

Yes

Yes

Yes

Yes

Yes

Upstream Address Verification

(1)

Yes

Yes

Yes

Yes

Yes

Yes

Improved Upstream QoS

Yes

Yes

Yes

Yes

Yes

Yes

QoS Configuration

Yes

Yes

Yes

Yes

Yes

Yes

QoS Profile Enforcement

Yes

Yes

Yes

Yes

Yes

Yes

Read/Create Implementation of QoS

No

Yes

Yes

Yes

Yes

Yes

RTP Header Compression

Yes

Yes

Yes

Yes

Yes

Yes

Multiple SID Support (static only)

Yes

Yes

Yes

Yes

Yes

Yes

Dynamic SID support

Yes

Yes

Yes

Yes

Yes

Yes

Security
Automated Double Authentication

Yes

Yes

Yes

Yes

Yes

Yes

Cable Modem and Multicast Authentication using RADIUS

No

Yes

No

No

Yes

Yes

Baseline Privacy Interface (BPI) Encryption

(1)

No

Yes

No

No

Yes

Yes

Firewall Enhancements

(1)

Yes

Yes

Yes

Yes

Yes

Yes

HTTP Security

Yes

Yes

Yes

Yes

Yes

Yes

Named Method Lists for AAA Authorization & Accounting

Yes

Yes

Yes

Yes

Yes

Yes

Per-Modem and Per-Host Access List Support

Yes

Yes

Yes

Yes

Yes

Yes

Per-User Configuration

Yes

Yes

Yes

Yes

Yes

Yes

Redirect-Number Support for RADIUS and TACACS+ Servers

(1)

No

No

No

Yes

No

Yes

Reflexive Access Lists

Yes

Yes

Yes

Yes

Yes

Yes

Vendor-Proprietary RADIUS Attributes

Yes

Yes

Yes

Yes

Yes

Yes

Switching
Fast-Switched Policy Routing

Yes

Yes

Yes

Yes

Yes

Yes

VPN
MPLS VPN Support for Subinterfaces and Interface Bundles

(2)

Yes

Yes

Yes

Yes

Yes

Yes

Cable Subinterfaces and Interface Bundling support for Virtual Private Networks

(1)

Yes

Yes

Yes

Yes

Yes

Yes

WAN Optimization
PAD Subaddressing

Yes

Yes

Yes

Yes

Yes

Yes

WAN Services
Bandwidth Allocation Control Protocol (BACP)

Yes

Yes

Yes

Yes

Yes

Yes

Enhanced Local Management Interface (ELMI)

Yes

Yes

Yes

Yes

Yes

Yes

Frame Relay Enhancements

(1)

Yes

Yes

Yes

Yes

Yes

Yes

Frame Relay MIB Extensions

(1)

Yes

Yes

Yes

Yes

Yes

Yes

Frame Relay Router ForeSight

(1)

Yes

Yes

Yes

Yes

Yes

Yes

ISDN Advice of Charge

Yes

Yes

Yes

Yes

Yes

Yes

ISDN Caller ID Callback

Yes

Yes

Yes

Yes

Yes

Yes

ISDN Multiple Switch Type

Yes

Yes

Yes

Yes

Yes

Yes

ISDN NFAS

Yes

Yes

Yes

Yes

Yes

Yes

MPPC

Yes

Yes

Yes

Yes

Yes

Yes

National ISDN Switch Types for BRI and PRI

Yes

Yes

Yes

Yes

Yes

Yes

VPDN MIB and Syslog Facility

Yes

Yes

Yes

Yes

Yes

Yes

X.25 Enhancements

Yes

Yes

Yes

Yes

Yes

Yes

X.25 Switching between PVCs and SVCs

Yes

Yes

Yes

Yes

Yes

Yes

1This column indicates the maintenance release in which the feature was introduced: (1) means a feature was introduced in Release 12.1(1a)T1, (2) means a feature was introduced in Release 12.1(2)T, and (3) means a feature was introduced in Release 12.1(3)T. If this cell in this column is empty, this feature was introduced in the initial base release.

New and Changed Information

The following sections list the new hardware and software features supported by the Cisco uBR7200 series Universal Broadband Routers for Cisco IOS Release 12.1.

No New Hardware Features in Release 12.1(3)T

There are no new hardware features supported by the Cisco uBR7200 series Universal Broadband Routers in Cisco IOS Release 12.1(3)T.

New Software Features in Release 12.1(3)T

The following new software features are supported by the Cisco uBR7200 series Universal Broadband Routers in Cisco IOS Release 12.1(3)T:

Circuit Interface Identification MIB (CSCdp81924)

The Circuit Interface Identification MIB feature adds support for a new Cisco enterprise MIB, used to assist in SNMP monitoring of circuit-based interfaces. The Circuit Interface MIB (CISCO-CIRCUIT-INTERFACE-MIB) provides a MIB object which can be used to identify individual circuit-based interfaces (for example, interfaces using ATM or Frame-Relay). This user-specified identification will then be returned when linkup and linkdown SNMP traps are generated for the interface.

The Circuit Interface MIB consists of a single table, with each row being a sequence of two objects: Circuit Interface Description (cciDescr) and Circuit Interface Status (cciStatus). The cciDescr object is used to identify circuits using a textual description of up to 255 characters specified by the user (note that MIB objects are modified using network management system (NMS) applications, and can not be configured using the Cisco IOS command-line interface). When the row is created by a user, a value is set for the cciDescr object. The table is indexed by ifIndex from the IF-MIB. The cciStatus is the RowStatus object for the rows in the table. The cciStatus object can be set to only two values by the user: createAndGo(4), which creates a new row, and destroy(6), which removes an existing row. If the row is created successfully, the cciStatus will be active(1). When creating a new row, the user should set the cciDescr object along with the cciStatus in a single "snmp set pdu" command. If the row is already active, only the cciDescr object can be modified. The other option is to delete the row first by setting the cciStatus to destroy(6) and then recreate the row with a new value for cciDescr. When creating a new row, the ifIndex is validated first. If the ifIndex value is not valid, the row is not created and an error code is returned. Similarly, when an interface is deleted and there was a corresponding row in this table, that row will be deleted automatically.

After an identifying description is created for an interface by a user, the description (the cciDescr object) will be sent along with the other varbinds as part of linkup and linkdown trap notifications.

For further details, see the CISCO-CIRCUIT-INTERFACE-MIB.my file, available from the Cisco Connection Online MIB site at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml."

Expression MIB Support of Delta, Wildcarding, and Aggregation

This feature adds support of the Delta, Wildcarding, Delta Wildcarding, and Aggregation features in the Distributed Management Expression MIB (EXPRESSION-MIB) to Cisco IOS software for use by SNMP.

The Delta function enables the Expression MIB to use Delta values of an object instead of absolute values when evaluating an expression. Delta is obtained by taking the difference between the current value of an object and its previous value.

The Wildcarding function of the Expression MIB allows evaluation of multiple instances of an object. This is useful in cases when an expression needs to be applied to all instances of an object. The user need not individually specify all instances of an object in the Expression but only has to set the expWildcardedObject in expObjectTable to TRUE for the respective object.

Aggregation is performed using the sum function in the Expression MIB. The operand to the sum function has to be a wildcarded object. The result of the sum function is the sum of values of all instances of the wildcarded object.

For a complete description of Expression MIB functionality, see the "Distributed Management Expression MIB" Internet-Draft document, available through the ITEF at http://www.ietf.org/ids.by.wg/disman.html.

Individual SNMP Trap Support (CSCdp97172)

The Individual SNMP Trap Support feature adds the ability to enable or disable SNMP system management notifications (traps) individually. SNMP traps that can be specified are "authentication", "linkup", "linkdown", and "coldstart". This feature expands the functionality of the "snmp-server enable traps snmp" command.

For documentation, see http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t3/dtitraps.htm

Source Specific Multicast

The Source Specific Multicast (SSM) feature is an extension of IP multicast, where datagram traffic is forwarded to receivers from only those multicast sources to which the receivers have explicitly joined. When SSM is used, only source-specific multicast distribution trees (no shared trees) are created.

Source specific multicast (SSM) is a datagram delivery model that best supports one-to-many applications, also known as broadcast applications. SSM is the core networking technology for the Cisco implementation of the IP Multicast lite suite of solutions targeted for audio and video broadcast application environments. This feature module introduces the following Cisco IOS components that support SSM:

The Cisco implementation of SSM will soon be deployed with Internet Group Management Protocol Version 3 (IGMPv3) support. Cisco developed IGMP v3lite and URD to support the deployment of applications utilizing SSM services before the introduction of IGMPv3.

No New Hardware Features in Release 12.1(2)T

There are no new hardware features supported by the Cisco uBR7200 series Universal Broadband Routers in Cisco IOS Release 12.1(2)T.

New Software Features in Release 12.1(2)T

The following new software features are supported by the Cisco uBR7200 series Universal Broadband Routers in Cisco IOS Release 12.1(2)T:

MC16S LED Enhancement

Using Cisco IOS Release 12.1(2)T, MGR ACT LED behavior on the Cisco MC16S Cable Modem Card differs (see Table 5). This feature also stops Spectrum Scanning on one or more upstream ports if the upstream or the whole interface is shut down.
Table 5: Cable Modem Card LEDs
LED Label Color State Description

Enabled

Green

On

Indicates that the cable modem card is operating normally: receiving DC power from the router midplane and enabled for operation.

N/A

Off

Either the card is shutdown or the slot isn't working.

Upstream

Green

On

For each upstream port, indicates that the upstream path is enabled.

N/A

Off

Either the port is not configured, shutdown, or the slot isn't working.

Downstream

Green

On

For each downstream port, indicates that the downstream path is enabled.

N/A

Off

Either the port is not configured, shutdown, or the slot isn't working.

MGR ACT
(MC16S only)

Green

On

With Release 12.0.7 XR2 or Release 12.1(1A)T1, indicates that a spectrum group has been configured.

With Release 12.1.2(T), indicates that the MC16S Spectrum Management Card has initiated an upstream frequency hop from a potentially "noisy" channel to a cleaner channel.

N/A

Off

Either the port is not configured, shutdown, or the slot isn't working.

MPLS VPN Support for Subinterfaces and Interface Bundles

Cisco IOS Release 12.1(2)T includes MPLS support as part of its VPN offerings for cable subinterfaces and interface bundles. The software offers enhancements made to tags placed on the fronts of packets that contain forwarding information used to make switching decisions for cable interfaces and bundles. This tag switching infrastructure combines advanced routing protocol capabilities to define IP VPNs by selectively advertising IP reachability information to just those subscribers within the same VPN or extranet on a cable interface.

The MPLS-VPN approach of creating VPNs for individual ISPs requires subinterfaces to be configured on cable interfaces or bundles. Refer to the "Cable Subinterfaces and Interface Bundling" section for definitions of subinterfaces and interface bundles. One subinterface is required for each ISP. The subinterfaces are tied to VPN Routing Forwarding (VRF) tables for respective ISPs.

Apart from creating one subinterface for an ISP, an additional subinterface is created on the cable interface bound to the management VPN. The management VPN is the one that connects the Cisco uBR7200 series to a Provider Enterprise (PE) router that connects to management servers such as CNR and ToD. MPLS VPN support also allows interfaces to be bound to a VRF table where each VRF belongs to an ISP. This allows Cisco uBR7200 series downstream and upstream plant segments to be shared by multiple ISPs. PCs behind respective CMs obtain their IP addresses from the respective ISP address pool. Traffic coming from those CMs is routed to the ISP's point of interconnect router.

For MPLS commands, refer to Cisco MPLS VPN Solutions Command Reference .

The Cisco uBR7200 series support a CM to cable subinterface association by mapping SIDs, that are assigned to that CM, to the subinterface. This mapping is created by gleaning DHCP reply messages meant for the PC. The IP address stored in the DHCP reply is matched for its subnet value against the subnet value configured for each of the subinterfaces over a physical interface or a cable bundle. The subnet information can be derived by the IP address and the mask value configured for the subinterface. All other SIDs for the CM that are created after the initial DHCP configuration of CM are bound to the same subinterface by the Cisco uBR7200 series router.

The SID to subinterface mapping created by gleaning DHCP reply is used to associate an incoming packet to the correct subinterface and switched using VRF configured on that subinterface.

Enhanced Per Modem Error Counter

The Cisco uBR7200 series supports display of per modem error counters. New command introduced is:

show cable modem [<ip-addr> | <mac-addr>] error

Sample display:

cmts#show cable modem errors 
MAC Address    SID   I/F          CRC        HCS
00d0.ba26.eee7 1     Cable4/0/U0  0          0
Note Both CRC and HCS are on a per CM basis.

The CMTS maintains the above error counters to begin to populate the MIB objects pertaining to RFC 2670:

This saves administrators from having to poll the docsIfSignalQuality table on every cable modem. With the CMTS maintaining error counters, along with the above table and entries in place, administrators can poll the CMTS, rather than all CMs -- providing a more scalable network management model.

SNMP Cable Modem Remote Query

The feature is to provide a new MIB, SNMP Cable Modem Remote Query, so that the cable modem termination system (CMTS) cable modem (CM) poller and the CMs' status polled from the CMTS CM poller can be configured and queried via SNMP.

A new CLI command has been implemented for turning on the trap:

snmp-server enable cable cm-remote-query

Note In the release notes for Cisco IOS Release 12.1(2), this feature was referred to as CISCO-DOCS-REMOTE-QUERY-MIB

New Hardware Features in Release 12.1(1a)T1

The following new hardware features are supported by the Cisco uBR7200 series Universal Broadband Routers in Cisco IOS Release 12.1(1a)T1:

Broadband Wireless---Point to Point

The Cisco high-speed point-to-point broadband fixed wireless system provides a fixed, dedicated wireless link from one site to another. This link delivers full-duplex data in the licensed Microwave Multi-point Distribution System (MMDS) band (2.500 to 2.690 GHz), or Unlicensed National Information Infrastructure (U-NII) band (5.725 to 5.825 GHz).

The broadband fixed wireless system consists of a Cisco uBR7200 series Universal Broadband Router (Cisco uBR7246 or Cisco uBR7223) and one or more wireless modem cards, each with a power feed panel and one or two wireless transverters.

The wireless modem cards are installed in a Cisco uBR7200 series router. Each modem card is cabled to a power feed panel installed either in the same equipment rack as the router or mounted on a wall. Cables from the power feed panel are attached to one or two wireless transverters, which are installed on antenna masts. The system is managed using a command-line interface (CLI) or CiscoView.

The Cisco IOS software has a number of new and enhanced commands to support the wireless modem card. The wireless modem card is also one component of a complete fixed wireless subsystem. For more information about the new commands and additional wireless hardware, see the Cisco  uBR7200 Series Wireless Modem Card and Subsystem Installation and Configuration publication.

Note Not all port adapters are supported with the wireless modem card. The HSSI, 10BaseT Ethernet, 100BaseT Ethernet, and serial Frame Relay interfaces are fully supported. The ATM, POS, and Gigabit Ethernet port adapters were not supported with the wireless modem card at the time Release 12.1(1a)T1 was released.

Cable Modem Card (MC16E)

The MC16E Cable Modem Card provides one downstream and six upstream connections to the cable network, similar to the MC16C Cable Modem Card, except that it supports the ITU J.83 Annex A physical layer and the proposed EuroDOCSIS (Annex A) standard (Cable Labs ECR RFI-R-98036). The MC16E card has the following differences with the current MC16C card:

All cable interface commands have been updated to support the MC16E Cable Modem Card.

Cisco Cable Clock Card

The Cisco Cable Clock Card enables the uBR7246 VXR to synchronize to an external T1 timing source and propagate the clock to the downstream DOCSIS-based Cable Access Routers. It is designed for cable networks running VoIP applications.

When installed in the Cisco uBR7246 VXR chassis, the Cisco Cable Clock Card can propagate a national clock signal throughout the router's midplane by locking onto an external T1 signal originating over the PSTN, locking onto a T1 clock signal originating from a port adapter installed in the same chassis, or by connecting to a GPS receiver generating a T1 clock signal.

Spectrum Management Cable Modem Card (MC16S)

The software for the MC16S Spectrum Management Cable Modem Cards is a driver running on the Cisco uBR7200 series Universal Broadband Routers. Using a Peripheral Component Interconnect (PCI) interface, the Universal Broadband Router line card software interacts with the cable modem card. Data is passed back and forth, as direct memory access (DMA) transfers, from the Cisco uBR7200's memory to the cable modem card.

Additionally, the MC16S Cable Modem Cards support Universal Broadband Router line card management and control with the modem card Management Information Bases (MIBs), Media Access Control (MAC) control software and logical link management software based on DOCSIS standards.

In addition to its cable modem card, the MC16S provides dedicated hardware support for advanced spectrum management through a daughter spectrum management card. This card contains a spectrum analyzer that samples the 5 to 42 MHz upstream frequency spectrum in real-time, analyzing the number of offline cable modems. If a user-defined threshold value is reached, the spectrum management card takes a snapshot of the available upstream spectrum and passes that information to the IOS software, which analyzes it for possible significant ingress and impulse noise.

Using this analysis, the IOS software evaluates the upstream frequency spectrum and if necessary automatically hops to a frequency that can provide a clean upstream channel. This eliminates "blind" frequency hops and can improve response time to ingress noise impairments.

The cable upstream interface command now includes a new parameter when used to configure an interface on the MC16S Cable Modem Card, to allow the creation of a range of channel width. The new syntax is cable upstream port channel-width channel-width-1 channel-width-2 where the possible channel width values are 200000, 400000, 800000, 1600000, 3200000.

The cable upstream port modulation-profile modulation-number command configures the upstream modulation profile.

Note The MC16S Spectrum Management Card is calibrated using a 24.016 MHz, 0 dBmV reference signal injected into the card's front F-connector. The worst case accuracy is specified as +/- 3 dB over the DOCSIS upstream frequency band (5-45 MHz) and operating temperature range (0 to 40 degrees Centigrade).

New Software Features in Release 12.1(1a)T1

The following new software features are supported by the Cisco uBR7200 series Universal Broadband Routers in Cisco IOS Release 12.1(1a)T1:

Baseline Privacy Interface MIB

Cisco uBR7200 series Universal Broadband Routers now include support for the DOCSIS Baseline Privacy Interface (BPI) MIB. This allows an SNMP manager to monitor and manage the router's BPI configuration, including whether BPI is enabled, status of current authorization keys, current timeout values, real-time status counters, and additional information about authorization errors.

Note The SNMP manager must load the DOCS-BPI-MIB.my MIB to access the BPI attributes.

Bi-Directional Protocol Independent Multicast (PIM)

Bi-directional Protocol Independent Multicast (bidir-PIM) is an extension of Protocol Independent Multicast sparse mode (PIM SM), which implements shared sparse trees with bidirectional flow of data. In contrast to PIM SM, bidir-PIM avoids keeping a source-specific state in routers and therefore allows multicast distribution trees to scale to an arbitrary number of sources.

Bidirectional flow allows improved data delivery to receivers close to the source, because the traffic traveling upstream to the rendezvous point (RP) is "turned around" and forwarded on downstream branches. Bidirectional shared trees can therefore distribute datagrams from sources to the RP and directly to receivers. Moreover, the bidir-PIM protocol does not build source trees from sources to the RP or to receivers. Instead, source transmissions travel up the shared tree toward the RP and to receivers along the way. The RP only needs to forward datagrams downward on those branches of the shared tree not covered by the path from the source to the RP.

When compared to unidirectional trees in PIM SM, bidir-PIM reduces the amount of state that routers must explicitly keep. Each router in a bidirectional multicast routing domain needs to only keep state for the group and not each source sending to each group. Explicit joins are used for members to join the shared tree. However, sources do not use registers to get their data on the shared tree.

DOCSIS Quality of Service Enhancements

A number of DOCSIS quality of service (QoS) enhancements have been added to Cisco IOS Release 12.1(1a)T1; these features parallel some of those that are expected in the DOCSIS 1.1 specification when it is finalized.

Note These QoS enhancements are in addition to the currently existing QoS traffic shaping and tiered best effort features.
Concatenation is enabled by default for current cable modem cards (see the "Cable Modem Cards" section), but can be disabled with the Cisco IOS no cable upstream number concatenation interface command. The show controller command displays whether concatenation is enabled on an interface.
In addition, the Cisco uBR7200 series router can create QoS profiles for G.711 fax traffic and G.729 voice traffic. These profiles can be customized with the scheduling parameters required for the G.711 and G.729 CODECs being used at the subscriber's site.

Enhanced Modem Status Display

The Cisco uBR7200 series Universal Broadband Router supports polling of the cable modems to obtain parameter and status information on an ongoing basis. Two new Cisco IOS commands are added to support this feature.

The cable modem remote command configures the router for the polling interval; the no version of this command disables the status polling. The show cable modem remote-query command displays the collected information:

Firewall Enhancements

Cisco IOS Release 12.1(1a)T1 enhances the previous Cisco IOS Secure Integrated Software feature set with the following set of features:

For general information, see the description of the Cisco  IOS Firewall Feature Set in the Cisco Product Catalog. For detailed information, see the Cisco  IOS Firewall Feature Set documentation set, as well as the sections on Traffic Filtering and Firewalls in the Security Configuration Guide and Security Command Reference (available on the Documentation CD-ROM and CCO).

Frame Relay Support

Frame Relay provides a packet-switching data communications capability that is used across the interface between user devices, such as the Cisco uBR7200 series Universal Broadband Routers, and network equipment (switching nodes). As an interface between user and network equipment, Frame Relay provides a means for statistically multiplexing many logical data conversations (virtual circuits) over a single physical transmission link. A Frame Relay service may support Permanent Virtual Circuits (PVCs) or Switched Virtual Circuits (SVCs). The Cisco uBR7200 series Universal Broadband Routers support PVCs only.

Frame Relay features include [taken from the Omega Frame Relay Software Unit Functional Specification, ENG-33454]:

Interface Command Enhancements

A number of Cisco IOS cable interface commands have been enhanced:

The previous cable downstream if-output command has not changed and continues to output a standard modulated signal. The no cable downstream if-output command also has not changed---it stops all signal output and shuts down the interface.

Redirect-Number Support for RADIUS and TACACS+ Servers

If a telco-return customer is being authenticated by a RADIUS or TACACS+ server, and if the number dialed by the cable modem is being redirected to another number for authentication, Cisco IOS Release 12.1(1a)T1 can include the original number in the information sent to the authentication server. The original number can be sent as a Cisco Vendor Specific Attribute (VSA) for TACACS+ servers and as RADIUS Attribute 93 (Ascend-Redirect-Number) for RADIUS servers. This allows the service provider to determine whether the customer dialed a number that requires special billing arrangements, such as a toll-free number.

This feature is enabled with the aaa nas redirected-station command and disabled with the no aaa nas redirected-station command; other AAA configuration commands also apply as appropriate. The RADIUS Attribute 93 is sent by default; to also send a VSA attribute for TACACS+ servers, use the radius-server vsa send accounting and radius-server vsa send authentication commands. To configure the RADIUS server to use RADIUS Attribute 93, add the non-standard option to the radius-server host command.

Note This feature is valid only when using port adapters that are configured for a T1 or E1 ISDN PRI or BRI interface. In addition, the telco switch performing the number redirection must be able to provide the redirected number in the Q.931 Digital Subscriber Signaling System Network Layer.

Cable Subinterfaces and Interface Bundling

Cisco uBR7200 series software supports the definition of logical network layer interfaces over a cable physical interface or a bundle of cable interfaces. The system also supports subinterface creation on either a physical cable interface or a bundle of cable interfaces. This allows a service provider to share one IP subnet across multiple cable interfaces that are grouped into a cable interface bundle. All of the cable interfaces on a Cisco uBR7200 series Universal Broadband Router can be grouped into a single bundle so that only one subnet is required for each router. This eliminates the requirement that a separate IP subnet be used for each individual cable interface. This in turn avoids the performance, memory, and security problems that result if a bridging solution is used to manage subnets, especially for a large number of subscribers.

The CMTS administrator can define:

The command to create a subinterface over a cable interface is the same as that defined by Cisco IOS for other software applications:

interface cable x/y.n

where x is the slot number, y is the port number, and n is the subinterface number.

Two new commands implement the bundling feature:

Administrators can create subinterfaces on cable interfaces or cable interface bundles to support VPN. Each subinterface can be assigned to a specific pool of IP addresses, mapping that subinterface to a particular VPN customer network. A Generic Routing Encapsulation (GRE) tunnel can also be created between the Cisco uBR7200 series router and the router that serves as the VPN customer gateway.

When a cable modem registers with the Cisco uBR7200 series Universal Broadband Router, its IP address is used to identify the sub-interface being used by the cable modem; this information is used to associate the Service Identifier (SID) assigned to the modem to that sub-interface (and thus the VPN customer network).

A subinterface can be created on any cable interface that is not part of a cable interface bundle. A subinterface can also be created on the master cable interface bundle; subinterfaces cannot be created on non-master bundles.

Subinterfaces support the following existing cable interface commands:

Note Cisco IOS Release 12.1(1a)T1 does not include MPLS support as part of its VPN support on the cable subinterfaces.

Upstream Address Verification Enhancement

This feature prevents the spoofing of IP addresses by verifying that each upstream data packet comes from the cable modem known to be associated with the source IP address in the packet. The cable source-verify [ dhcp ] cable interface command specifies that DHCP lease query requests are sent to verify any unknown source IP address found in upstream data packets. This feature requires a DHCP server that supports the new LEASEQUERY message type.

Note Cisco Network Registrar (CNR) supports the LEASEQUERY message type in software release  3.01(T) and greater.

New Hardware Features in Release 12.1(1)

The following new hardware features are supported by the Cisco uBR7200 series Universal Broadband Routers in Cisco IOS Release 12.1(1):

New Software Features in Release 12.1(1)

The following new software features are supported by the Cisco uBR7200 series Universal Broadband Routers in Cisco IOS Release 12.1(1):

Limitations and Restrictions

Cisco IOS Release 12.1(3)T for the Cisco uBR7200 series Universal Broadband Routers contains the following limitations and restrictions. Unless otherwise indicated, these limitations and restrictions apply to all previous software releases as well.

Dynamic Packet Transport Port Adapters

Dynamic Packet Transport (DPT) port adapters are not supported by the Cisco uBR7200 series in Cisco IOS Release 12.1(3)T and earlier 12.1 T maintenance releases. Previous versions of these release notes listed the DPT port adapters in the Port Adapter Cards table. This is erroneous and has been corrected.

Wireless Modem Card Support for Port Adapters

Not all port adapters are supported with the wireless modem card. The HSSI, 10BaseT Ethernet, 100BaseT Ethernet, serial Frame Relay, ATM, and POS interfaces are fully supported. The Gigabit Ethernet port adapter was not supported with the wireless modem card at the time the Cisco IOS Release 12.1(3)T software was released.

Wireless System Power Feed Panel

The cable that supplies -48VDC to the wireless system's power feed panel should not exceed 3 meters in length.

Important Notes

The following sections contain important notes about Cisco IOS Release 12.1 T that apply to Cisco uBR7200 series Universal Broadband Routers.

Deferral Notice for Cisco IOS Release 12.1(1)T

The following defect has caused all images in the Cisco IOS Release 12.1(1)T to be deferred:

CSCdp99255 RM7000 may skip instructions during installation. Please refer to the "Closed and Resolved Caveats for Release 12.1(1a)T1" section for more caveat information.

To prevent this potential hazard to customer networks, Cisco Systems Inc. has deferred and removed the affected images from CCO.

If you already have this image in your network, please replace it with images from the Cisco IOS Release 12.1(1a)T1 release, currently available on CCO.

For questions regarding this notice, please contact Jeff Kerr, Program Manager.

Minimum 64 MB of DRAM is Required

The Cisco uBR7200 series Universal Broadband Router must have a minimum of 64 MB of DRAM to run all Cisco IOS Release 12.1(3)T images.

Supported MIBs

The Cisco uBR7200 series Universal Broadband Routers support the following categories of MIBs:

The and are described in the following sections. For information on the SNMP standard MIBs and Cisco's platform and network-layer enterprise MIBs, see Cisco's MIB website at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.

Cable-specific and Wireless-specific MIBs

Table 6 shows the cable and wireless MIBs that are supported on the Cisco uBR7200 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 6 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.


Table 6: Cable-specific and Wireless-specific MIBs Supported on Cisco uBR7200 Series Routers
MIB Filename Description Release

SNMPv2-SMI.my

SNMPv2-SMI-V1SMI.my

This module specifies the Structure of Management Information (SMI) for SNMPv2, as defined in RFC 1902.

11.3 T

SNMPv2-TC.my

SNMPv2-TC-V1SMI.my

This module defines the textual conventions as specified in RFC 1903.

11.3T

SNMPv2-MIB.my

SNMPv2-MIB-V1SMI.my

The management protocol, SNMPv2, provides for the exchange of messages that convey management information between the agents and the management stations, as defined in RFC 1907.

11.3T

CISCO-SMI.my

CISCO-SMI-V1SMI.my

This module specifies the Structure of Management Information (SMI) for Cisco's enterprise MIBs.

11.3T

CISCO-TC.my

CISCO-TC-V1SMI.my

This module defines the textual conventions used in Cisco's enterprise MIBs.

11.3T

IF-MIB.my

IF-MIB-V1SMI.my

This module describes generic objects for the Layer 3 network interface sublayers. This MIB is an updated version of MIB-II's if table. And this MIB incorporates the extensions defined in RFC 2233.

11.3T
12.1(2)T

DOCS-IF-MIB.my

DOCS-IF-MIB-V1SMI.my

This module describes the DOCSIS-compliant Radio Frequency (RF) interfaces in cable modems and cable modem termination systems, as defined in RFC 2670.

12.1(1a)T1

DOCS-BPI-MIB.my

This module---available in an SNMPv2 version only---describes the attributes for the DOCSIS-specified Baseline Privacy Interface (BPI) on cable modems and the CMTS.

11.3(11)NA
12.0(7)XR

CISCO-DOCS-EXT-MIB.my

CISCO-DOCS-EXT-MIB-V1SMI.my

This module extends the DOCSIS standard RFI MIB (DOCS-IF-MIB) with Cisco-specific extensions, such as QoS attributes and connection status and other information regarding the cable modems and CPE devices supported by the CMTS.

11.3(9)NA
12.0(5)T1

CISCO-DOCS-REMOTE-QUERY-MIB (also referred to as SNMP Cable Modem Remote Query)

CMTS CM poller, which is used to poll the remote CMs, can be configured.

12.1(2)T

CISCO-CIRCUIT-INTERFACE-MIB

This module adds support for a new Cisco enterprise MIB, used to assist in SNMP monitoring of circuit-based interfaces.

12.1(3)T

EXPRESSION-MIB

This module adds support of the Delta, Wildcarding, Delta Wildcarding, and Aggregation features in the Distributed Management Expression MIB (EXPRESSION-MIB)

12.1(3)T

CISCO-CABLE-SPECTRUM-MIB.my

CISCO-CABLE-SPECTRUM-MIB-V1SMI.my

This module describes the spectrum management flap list attributes.

12.0(5)T1

CISCO-WIRELESS-TC-MIB.my

CISCO-WIRELESS-TC-MIB-V1SMI.my

This module contains the textual conventions for the other wireless modem card MIB modules.

12.0(7)XR

CISCO-WIRELESS-EXP-MIB.my

CISCO-WIRELESS-EXP-MIB-V1SMI.my

This module is the Cisco Wireless Radio Experimental MIB for the Cisco wireless modem card and related subsystem.

12.0(7)XR

CISCO-WIRELESS-IF-MIB.my

CISCO-WIRELESS-IF-MIB-V1SMI.my

This module is the MIB Module for the Cisco Wireless Radio Point to Point interface specification.

12.0(7)XR

CISCO-WIRELESS-P2P-BPI-MIB.my

CISCO-WIRELESS-P2P-BPI-MIB-V1SMI.my

This module is the MIB Module for the Baseline Privacy Interface (BPI) as implemented on the wireless modem card. This is a variation of the DOCSIS BPI MIB that has been customized for the point-to-point wireless modem subsystem.

12.0(7)XR

Deprecated MIBs

Old Cisco Management Information Bases (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 NMS applications. You can update from deprecated MIBs to the replacement MIBs as shown in Table 7.


Table 7: Replacements for Deprecated MIBs
Deprecated MIB Replacement

OLD-CISCO-APPLETALK-MIB

RFC1243-MIB

OLD-CISCO-CHASSIS-MIB

ENTITY-MIB

OLD-CISCO-CPUK-MIB

To be decided

OLD-CISCO-DECNET-MIB

To be decided

OLD-CISCO-ENV-MIB

CISCO-ENVMON-MIB

OLD-CISCO-FLASH-MIB

CISCO-FLASH-MIB

OLD-CISCO-INTERFACES-MIB

IF-MIB CISCO-QUEUE-MIB

OLD-CISCO-IP-MIB

To be decided

OLD-CISCO-MEMORY-MIB

CISCO-MEMORY-POOL-MIB

OLD-CISCO-NOVELL-MIB

NOVELL-IPX-MIB

OLD-CISCO-SYS-MIB

(Compilation of other OLD* MIBs)

OLD-CISCO-SYSTEM-MIB

CISCO-CONFIG-COPY-MIB

OLD-CISCO-TCP-MIB

CISCO-TCP-MIB

OLD-CISCO-TS-MIB

To be decided

OLD-CISCO-VINES-MIB

CISCO-VINES-MIB

OLD-CISCO-XNS-MIB

To be decided

Note Some of the MIBs listed inTable 7 represent feature sets that are not supported on Cisco uBR7200 series Universal Broadband Routers.
Note Cisco Management Information Base (MIB) User Quick Reference is no longer published. If you have an account with CCO, you can find the current list of MIBs supported by Cisco. To reach the Cisco Network Management Toolkit, go to CCO, press Login, and click 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.

For information on caveats in Cisco IOS Release 12.1 T, see Caveats for Cisco  IOS Release  12.1 T document.

All caveats in Cisco IOS Release 12.1 are also in Cisco IOS Release 12.1 T.

For information on caveats in Cisco IOS Release 12.1, see Caveats for Cisco  IOS Release 12.1, which lists severity 1 and 2 caveats and is located on CCO  and the Documentation CD-ROM.

Note If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II, go to CCO and press Login. Then go to 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 12.1(3)T

This section describes possibly unexpected behavior for cable-specific features for Cisco IOS Release 12.1(3)T. For a list of open caveats for Release 12.1 T, please refer to Caveats for Cisco  IOS Release  12.1 T.

The upstream port of a line card might be poorly initialized and not receive upstream bursts from the cable modems. In that case, the modems are not able to complete the initial ranging and continue to power-cycle infinitely.
This situation only occurs if the upstream port has non-default physical-layer configuration parameters stored in the startup configuration.
Workaround: Configure the following sequence of cable interface configuration commands so that the upstream port can start receiving data while allowing non-default physical-layer configuration parameters:
cable upstream {port} shutdown
no cable upstream {port} shutdown
Alternative workaround: Use default physical-layer configuration parameters for the upstream port.
The Cisco uBR7246 VXR Universal Broadband Router equipped with an NPE-300, Cisco uBR-MC16C or Cisco uBR-MC16E cable modem card, and a Cisco PA-FE-TX Fast Ethernet port adapter, may not boot correctly from flash after a power cycle. This is a timing issue. The port adapter hardware lacks sufficient time to stabilize after a reset, while the driver code starts.
Workaround: Reboot the router if this problem is encountered.

Closed and Resolved Caveats for Release 12.1(3)T

There are no closed and resolved caveats to report in Cisco IOS Release 12.1(3)T.

Open Caveats for Release 12.1(2)T

There are no open caveats specific to the Cisco uBR7200 series router for Cisco IOS Release 12.1(2)T. For a list of open caveats for Release 12.1 T, please refer to Caveats for Cisco  IOS Release  12.1 T.

Closed and Resolved Caveats for Release 12.1(2)T

All the caveats listed in this section are closed or resolved in Cisco IOS Release 12.1(2)T.

An upstream reset function that was added for MC16E cards caused MC16B cards to lose upstream. This is resolved in Cisco IOS Release 12.1(2)T.
If at least three cable interfaces were configured in a bundle and the bundle master was not the lowest numbered cable interface, removing one of the slave interfaces from the bundle followed by removing another slave caused a crash. This is resolved in Cisco IOS Release 12.1(2)T.
If a frequency hop was triggered on an upstream port serving constant bit rate (CBR) slots, the Cisco uBR7200  series router crashed. This is resolved in Cisco IOS Release 12.1(2)T.
In bundling, if the IP address on the master interface was configured with certain values, modems on all cable interfaces within the bundle were not able to pass the CM initialization phase. This is resolved in Cisco IOS Release 12.1(2)T.
A problem occurred when there was simultaneous traffic to the same CM with different IP precedence rate limits, which are configured by using the Cisco Vendor specific subtype IP precedence rate limit. This is resolved in Cisco IOS Release 12.1(2)T.
If a Cisco uBR7200 series Universal Broadband Router had non-compliant DOCSIS CMs on an upstream port that ranged with a negative timing offsets, the modems deceived the CMTS Map building code into using a large Map Advance when the dynamic Map Advance algorithm was active on each upstream port.
The result of this situation was that all other CMs on that upstream port were unable to send data upstream to the CMTS and went offline. The router generated a warning log message every time a CM with bad timing offset was detected. A sample warning message follows:
%UBR7200-5-BADTXOFFSET:Bad timing offset -10 detected for cable modem 0010.9500.0a6a
This is resolved in Cisco IOS Release 12.1(2)T.
If an administrator tried to delete a CMTS-created static QoS profile used for G.729 or G.711 upstream CBR service, the CMTS prevented destruction of such profiles. The Cisco uBR7200 crashed when the first Voice/Fax call using the undeleted profile terminated. This is resolved in Cisco IOS Release 12.1(2)T.
Spectrum Management task used many CPU cycles and caused CPU utilization to increase. This is resolved in Cisco IOS Release 12.1(2)T.
If VRFs were configured on cable sub-interfaces and cable dhcp-giaddr policy was configured on the sub-interface, then primary addresses configured on the cable sub-interface were used for CMs and secondary address hosts. During testing, it was found that the giaddr was set to the primary address for both CMs and hosts.
If there is no VRF configured, then it behaved correctly. This is resolved in Cisco IOS Release 12.1(2)T.
In Cisco IOS Release 12.1 T, the definition of 'k1' images for the Cisco  uBR9xx series was changed from BPI support only to include SSH support. This change caused an inconsistency with Cisco uBR7200 images, since the definition of 'k1' images for the Cisco uBR7200 was not changed and does not include SSH. The definition of 'k1' images for the Cisco uBR7200 must therefore be updated to include SSH, in all release trains supporting SSH. This is resolved in Cisco IOS Release 12.1(2)T.

Open Caveats for Cable-Specific Functionality for Release 12.1(1a)T1

This section describes possibly unexpected behavior for cable-specific features for Cisco IOS Release 12.1(1a)T1.

Note The caveats for the wireless modem card are listed in the separate section, "Open Caveats for Wireless Modem Card Functionality for Release 12.1(1a)T1,".
A Cisco uBR7246 VXR can crash when IP packets being sent over a Packet over SONET (POS) interface contain a bad IP checksum. The only current workaround is to find the source of the incorrectly sent IP packets and correct the problem at the source.
If a POS interface starts receiving incoming traffic while a Cisco uBR7246 or uBR7246 VXR router is still booting, the router stops booting until the incoming traffic stops. The workaround is to prevent any incoming traffic from coming into a POS interface until the router finishes its bootup process. (This problem can also occur on a Cisco 7200 series router.)
When an MC16C or MC16S Cable Modem Card is configured for a mixed burst profile (station maintenance packets are using QPSK modulation and data packets are using 16-QAM modulation), the MC16S does not hop to a new frequency band when noise interferes with data packets but only at much higher noise levels when station maintenance packets are dropped.
The workaround is to use 16-QAM modulation for all modes (request, initial, station, and data).
Note The enhancements needed to resolve this caveat are being tracked in CSCdm62122.
If the show controller command is entered during online insertion and removal (OIR) of a cable modem line card or port adapter, the Cisco uBR7200 series router can crash and must be reloaded to recover. The workaround is to avoid entering CLI commands while physically removing and inserting a cable modem line card or port adapter. (This problem can also occur on other routers.)
When a Cisco uBR7200 series router (as well as a Cisco 7200 series router) is first being configured or being reloaded, an installed POS port adapter can display the following error message: "Error in encaps setup. Encapsulation not changed."
This error message is cosmetic and can be disregarded.
If a POS port adapter has fair-queuing enabled, it cannot be replaced via online insertion and removal (OIR). If such a POS port adapter is replaced by online removal and insertion, it can no longer transmit packets. The router must be reloaded to recover from this error; the only workaround is to disable fair-queuing before replacing a POS port adapter.
When noise with a minimum frequency of 0.2 MHz at an amplitude greater 20 dBmV occurs on an upstream channel on an MC16S Cable Modem Card, noise can also occur at the center frequency harmonics. This affects the MC16S card's ability to analyze the noise levels on the different upstream channels.
Under certain conditions, POS port adapters might start dropping packets at very high throughput rates, such as 65 Mbps, when transmitting downstream traffic. The workaround is to reduce the flow of data until the errors stop.

Open Caveats for Wireless Modem Card Functionality for Release 12.1(1a)T1

This section describes possibly unexpected behavior by the wireless modem card and wireless subsystem in Cisco IOS Release 12.1(1a)T1, which is the first release that supports the wireless modem card.

When the wireless modem card is configured for maximum IF cable loss, the receiver's sensitivity may be reduced by 1.5 to 2 dB.
Under very infrequent conditions, the wireless modem card establishes a link of marginal quality, taking longer than normal to synchronize. However, the link does resynchronize correctly after several seconds, with no further impact on signal stability.
The temperature of a wireless transverter cannot be read on demand---the temperature is not accurately displayed when the Cisco uBR7200 series router is queried using SNMP requests. In addition, the temperature of a transverter is reported to the console only when the factory set threshold is crossed. There is no workaround to read the transverter's temperature on demand.
The wireless modem card does not currently calculate or display received signal strength. The workaround is to use the following procedure to calculate an estimate for the received signal strength.
When two wireless transverters are powered by a single DC power supply, applying or removing power to one transverter can create transients on the DC line. Depending on the regulation of the DC supply, these transients could affect the operation of the second transverter until DC power restabilizes---in extreme situations, this could result in the resetting of the second transverter. The workaround is to use a separate DC power supply for each transverter.
The radio snapshot command allows up to four simultaneous snapshots, except when collecting rx-timedomainchannel snapshot types. Time domain snapshots for either antenna must be collected one at a time.
The Cisco MMDS transverter cannot support 42 MHz difference between the Transmit (Tx) and the Receive (Rx) frequency when operating with a 12 MHz bandwidth; however, Cisco IOS software allows you to create this configuration without any warning. The workaround is avoid a 42 MHz difference between the Tx and Rx frequencies.

Open Caveats for Generic Functionality for Release 12.1(1a)T1

This section describes possibly unexpected behavior in the general release of Cisco IOS Release 12.1(1a)T1.

Miscellaneous

The following new object is now supported to meet DOCSIS OSSI compliance: -ifCounterDiscontinuityTime. This will cause a discontinuity on CMTS if you reset interface counters using CLI commands clear counters or clear counters cable 5/0.
The above statements are obsolete.
Modem calls over BRI do not work correctly. There is no workaround.
Prior to this fix, CMs will fail to complete initial ranging when minislot size is set to 128 ticks and channel width is set to 200000 Hz.
Workaround: It is recommended that the user not use this non-default upstream channel setting of 128 ticks/mslot, channel width = 200000, till an image with the fix is available. The problem will NOT happen with the default setting of minislot size = 8 ticks, channel width = 1600000. However, if for any reason user MUST use minislot size = 128 ticks, the following hidden command can be used to allow CMs to complete initial ranging.
However, the above workaround can cause a non optimal operation of the upstream burst receiver. Some CRC errors/No energy detection problem can be produced as a side result of the workaround. Thus, the workaround is recommended only if the user MUST use minislot size=128 ticks.

Closed and Resolved Caveats for Release 12.1(1a)T1

All the caveats listed in this section are closed or resolved in Cisco IOS Release 12.1(1a)T1.

The RM7000 processor used by C7140 and NPE-300 has a bug in version 1.X that may cause skipping or incorrect installation instruction execution. This leads to unpredictable results including memory corruption and crashes. Software has worked around the problem in accordance with manufacturer's recommendation.
This caveat led to the deferral of Cisco IOS Release 12.1(1)T images.

Related Documentation

The following sections describe the documentation available for the Cisco uBR7200 series. These documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, feature modules, and other documents.

Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online on CCO  and the Documentation CD-ROM.

Use these release notes with these documents:

Release-Specific Documents

The following documents are specific to Release 12.1 and are located on CCO and the Documentation CD-ROM:

On CCO:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release  12.1: Release Notes: Cross Platform Release Notes
Technical Documents
As a supplement to the caveats listed in "Caveats" in these release notes, see Caveats for Cisco IOS Release 12.1 and Caveats for Cisco IOS Release 12.1 T, which contain caveats applicable to all platforms for all maintenance releases of Release 12.1.
On CCO:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats
On the Documentation CD-ROM:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco  IOS Release 12.1: Caveats

Platform-Specific Documents

The following platform-specific documents are available:

Cisco uBR7200 Series Routers

These documents are available for the Cisco uBR7200 series Universal Broadband Routers on CCO and the Documentation CD-ROM:

On CCO:

Technical Documents: Documentation Home Page: Broadband/Cable Solutions: Cisco uBR7200 Series Universal Broadband Routers

On the Documentation CD-ROM:

Cisco Product Documentation: Broadband/Cable Solutions: Cisco uBR7200 Series Universal Broadband Routers

Cisco Broadband Fixed Wireless Modem Card

These documents are available for the wireless modem card (and other components of the Cisco WT2700 Wireless Technology Suite) on CCO and the Documentation CD-ROM:

On CCO:

Technical Documents: Documentation Home Page: Cisco Product Documentation: Broadband/Wireless Solutions

On the Documentation CD-ROM:

Cisco Product Documentation: Broadband/Wireless Solutions

Cisco uBR900 Series Cable Access Routers

The documentation for the Cisco uBR900 series Cable Access Routers are available on CCO and the Documentation CD-ROM at the following locations:

On CCO:

Technical Documents: Documentation Home Page: Broadband/Cable Solutions: Cisco uBR900 Series Cable Access Routers

On the Documentation CD-ROM:

Cisco Product Documentation: Broadband/Cable Solutions: Cisco uBR900 Series Cable Access Routers

Feature Modules

Feature modules describe new features supported by Cisco IOS Release 12.1(3)T 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 module information is incorporated in the next printing of the Cisco IOS documentation set.

On CCO:

Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation

On the Documentation CD-ROM:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation: New Features in Release 12.1 T

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, which are shipped with your order in electronic form on the Documentation CD-ROM---unless you specifically order the printed versions.

Documentation Modules

Each module in the Cisco IOS documentation set consists of two books: a configuration guide and a corresponding command reference. Chapters in a configuration guide describe protocols, configuration tasks, 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 CCO  and the Documentation CD-ROM, two master hot-linked documents provide information for the Cisco IOS software documentation set.

On CCO:

Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References

On the Documentation CD-ROM:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References: Cisco IOS Interface Configuration Guide or Cisco IOS Interface Command Reference

Release 12.1 Documentation Set

Table 8 describes the contents of the Cisco IOS Release 12.1 software documentation set, which is available in electronic form, and also in printed form upon request.

Note You can find the most current Cisco IOS documentation on CCO and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the paper documents were printed.

On CCO:

Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References

On the Documentation CD-ROM:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References


Table 8: Cisco IOS Software Release 12.1 Documentation Set
Books Major Topics

  • Cisco IOS Configuration Fundamentals Configuration Guide

  • Cisco IOS Configuration Fundamentals Command Reference

Configuration Fundamentals Overview
Cisco IOS User Interfaces
Cisco IOS File Management
Cisco IOS System Management
Cisco IOS User Interfaces Commands
Cisco IOS File Management Commands
Cisco IOS System Management Commands

  • Cisco IOS Bridging and IBM Networking Configuration Guide

  • Cisco IOS Bridging and IBM Networking Command Reference, Volume I

  • Cisco IOS Bridging and IBM Networking Command Reference, Volume II

Using Cisco IOS Software
Overview of SNA Internetworking
Bridging
IBM Networking

  • Cisco IOS Dial Services Configuration Guide: Terminal Services

  • Cisco IOS Dial Services Configuration Guide: Network Services

  • Cisco IOS Dial Services Command Reference

Preparing for Dial Access
Modem Configuration and Management
ISDN and Signalling Configuration
PPP Configuration
Dial-on-Demand Routing Configuration
Dial-Backup Configuration
Terminal Service Configuration
Large-Scale Dial Solutions
Cost-Control Solutions
Virtual Private Networks
X.25 on ISDN Solutions
Telco Solutions
Dial-Related Addressing Services
Interworking Dial Access Scenarios

  • Cisco IOS Interface Configuration Guide

  • Cisco IOS Interface Command Reference

Interface Configuration Overview
Configuring LAN Interfaces
Configuring Serial Interfaces
Configuring Logical Interfaces

  • Cisco IOS IP and IP Routing Configuration Guide

  • Cisco IOS IP and IP Routing Command Reference

IP Addressing and Services
IP Routing Protocols
IP Multicast

  • Cisco IOS AppleTalk and Novell IPX Configuration Guide

  • Cisco IOS AppleTalk and Novell IPX Command Reference

AppleTalk and Novell IPX Overview
Configuring AppleTalk
Configuring Novell IPX

  • Cisco IOS Apollo Domain, Banyan VINES, DECnet, ISO CLNS, and XNS Configuration Guide

  • Cisco IOS Apollo Domain, Banyan VINES, DECnet, ISO CLNS, and XNS Command Reference

Apollo Domain, Banyan VINES, DECnet, ISO CLNS, and XNS Overview
Configuring Apollo Domain
Configuring Banyan VINES
Configuring DECnet
Configuring ISO CLNS
Configuring XNS

  • Cisco IOS Multiservice Applications Configuration Guide

  • Cisco IOS Multiservice Applications Command Reference

Multiservice Applications Overview
Voice
Video
Broadband

  • Cisco IOS Quality of Service Solutions Configuration Guide

  • Cisco IOS Quality of Service Solutions Command Reference

Quality of Service Overview
Classification
Congestion Management
Congestion Avoidance
Policing and Shaping
Signalling
Link Efficiency Mechanisms
Quality of Service Solutions

  • Cisco IOS Security Configuration Guide

  • Cisco IOS Security Command Reference

Security Overview
Authentication, Authorization, and Accounting (AAA)
Security Server Protocols
Traffic Filtering and Firewalls
IP Security and Encryption
Other Security Features

  • Cisco IOS Switching Services Configuration Guide

  • Cisco IOS Switching Services Command Reference

Cisco IOS Switching Services Overview
Cisco IOS Switching Paths
Cisco Express Forwarding
NetFlow Switching
Multiprotocol Label Switching
Multilayer Switching
Multicast Distributed Switching
Virtual LANs
LAN Emulation

  • Cisco IOS Wide-Area Networking Configuration Guide

  • Cisco IOS Wide-Area Networking Command Reference

Wide-Area Networking Overview
Configuring ATM
Configuring Frame Relay
Configuring Frame Relay-ATM Interworking
Configuring SMDS
Configuring X.25 and LAPB

  • Cisco IOS Configuration Master Index

  • Cisco IOS Command Reference Master Index

  • Cisco IOS Debug Command Reference

  • Cisco IOS Dial Services Quick Configuration Guide

  • Cisco IOS Software System Error Messages

  • Cisco IOS Configuration Guide Master Index

  • New Features in 12.1-Based Limited Lifetime Releases

  • New Features in Release 12.1 T

  • Release Notes (Release note and caveat documentation for 12.1-based releases and various platforms)

 

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 Connection Online. From CCO, click on the following path: Service & Support: Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB.

Obtaining Documentation

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.

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. Therefore, it is probably more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.

Ordering Documentation

Registered CCO users can order the Documentation CD-ROM and other Cisco Product documentation through our online Subscription Services at http://www.cisco.com/cgi-bin/subcat/kaojump.cgi.

Nonregistered CCO users can order documentation through a local account representative by calling Cisco's corporate headquarters (California, USA) at 408 526-4000 or, in North America, call 800 553-NETS (6387).

Obtaining Technical Assistance

Cisco provides Cisco Connection Online (CCO)  as a starting point for all technical assistance. Warranty or maintenance contract customers can use the Technical Assistance Center. All customers can submit technical feedback on Cisco documentation using the web, e-mail, a self-addressed stamped response card included in many printed documents, or by sending mail to Cisco.

Cisco Connection Online

Cisco continues to revolutionize how business is done on the Internet. Cisco Connection Online 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.

CCO's broad range of features and services helps customers and partners to streamline business processes and improve productivity. Through CCO, you will find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online support services, 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 CCO to obtain additional personalized information and services. Registered users may order products, check on the status of an order and view benefits specific to their relationships with Cisco.

You can access CCO  in the following ways:

You can e-mail questions about using CCO to cco-team@cisco.com.

Technical Assistance Center

The Cisco Technical Assistance Center (TAC) is available to warranty or maintenance contract customers who need technical assistance with a Cisco product that is under warranty or covered by a maintenance contract.

To display the TAC web site that includes links to technical support information and software upgrades and for requesting TAC support, use www.cisco.com/techsupport.

To contact by e-mail, use one of the following:

Language E-mail Address

English

tac@cisco.com

Hanzi (Chinese)

chinese-tac@cisco.com

Kanji (Japanese)

japan-tac@cisco.com

Hangul (Korean)

korea-tac@cisco.com

Spanish

tac@cisco.com

Thai

thai-tac@cisco.com

In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For other telephone numbers and TAC e-mail addresses worldwide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.

Software Configuration Tips on the Cisco Technical Assistance Center Home Page

If you have a CCO log-in account, you can access the following URL, which contains links and tips on configuring your Cisco products:

http://www.cisco.com/kobayashi/technotes/serv_tips.shtml

This URL is subject to change without notice. If it changes, point your Web browser to CCO, press Login, and click on this path: Technical Assistance Center: Technical Tips.

The following sections are provided from the Technical Tips page:

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 95134-9883

We appreciate and value your comments.

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Posted: Mon Jul 24 10:50:16 PDT 2000
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