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      - CISCO UBR7200 SERIES UNIVERSAL BROADBAND ROUTERS
        GENERAL INFORMATION
        RELEASE NOTES
        Release Notes for Cisco uBR7200 Series for Cisco IOS Release 12.3 BC

Cisco uBR7200 Series Universal Broadband Routers

Release Notes for Cisco uBR7200 Series for Cisco IOS Release 12.3 BC

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Release Notes for Cisco uBR7200 Series for Cisco IOS Release 12.3 BC

Table Of Contents

Release Notes for Cisco uBR7200 Series for Cisco IOS Release 12.3 BC

Contents

Introduction

Cisco uBR7200 Series Universal Broadband Routers

Cisco uBR7246VXR Universal Broadband Router

Cisco uBR7246 Universal Broadband Router

Cisco uBR7223 Universal Broadband Router

Cisco uBR7200 Series Universal Broadband Router Overview

Early Deployment Releases

Supported Features

System Requirements

Memory Recommendations

DOCSIS System Interoperability on the Cisco uBR7246VXR CMTS

DOCSIS 1.0 Baseline Privacy

Cable Modem Interoperability

DOCSIS 1.0 and 1.0+ Extensions

DOCSIS 1.1 Extensions

Additional Cable Modem Interoperability

Supported Hardware

Network Processing Engines

I/O Controllers

Cable Interface Line Cards

Port Adapter Cards

Determining Your Software Release

Upgrading to a New Software Release

Feature Support

New and Changed Information

New Hardware Features in Cisco IOS Release 12.3(23)BC5

New Software Features in Cisco IOS Release 12.3(23)BC5

New Hardware Features in Cisco IOS Release 12.3(23)BC4

New Software Features in Cisco IOS Release 12.3(23)BC4

New Hardware Features in Cisco IOS Release 12.3(21a)BC8

New Software Features in Cisco IOS Release 12.3(21a)BC8

New Hardware Featues in Cisco IOS Release 12.3(23)BC3

New Software Features in Cisco IOS Release 12.3(23)BC3

New Hardware Features in Cisco IOS Release 12.3(23)BC2

New Software Features in Cisco IOS Release 12.3(23)BC2

Subscriber Traffic Management Version 1.2

Upstream Utilization Optimization

New Hardware Features in Cisco IOS Release 12.3(21a)BC7

New Software Features in Cisco IOS Release 12.3(21a)BC7

New Hardware Features in Cisco IOS Release 12.3(23)BC1

New Software Features in Cisco IOS Release 12.3(23)BC1

PacketCable Subscriber ID Support

New Hardware Features in Cisco IOS Release 12.3(21a)BC6

New Software Features in Cisco IOS Release 12.3(21a)BC6

New Hardware Features in Cisco IOS Release 12.3(21a)BC5

New Software Features in Cisco IOS Release 12.3(21a)BC5

New Hardware Features in Cisco IOS Release 12.3(23)BC

DOCSIS Timing & Control Card (DTCC)

New Software Features in Cisco IOS Release 12.3(23)BC

New Hardware Features in Cisco IOS Release 12.3(21a)BC4

New Software Features in Cisco IOS Release 12.3(21a)BC3

New Hardware Features in Cisco IOS Release 12.3(21a)BC3

New Software Features in Cisco IOS Release 12.3(21a)BC3

Control Point Discovery (CPD)

New Hardware Features in Cisco IOS Release 12.3(21a)BC2

New Software Features in Cisco IOS Release 12.3(21a)BC2

New Hardware Features in Cisco IOS Release 12.3(21a)BC1

New Software Features in Cisco IOS Release 12.3(21a)BC1

New Hardware Features in Cisco IOS Release 12.3(21)BC

New Software Features in Cisco IOS Release 12.3(21)BC

Automatic Virtual Interface Bundles

Cable DHCP Enhancements

Cable Duplicate MAC Address Reject

PacketCable Client Accept Timeout

Per Downstream Static Multicast

SAMIS Source Address Management

Service Flow Admission Control

New Hardware Features in Cisco IOS Release 12.3(17b)BC9

New Software Features in Cisco IOS Release 12.3(17b)BC9

New Hardware Features in Cisco IOS Release 12.3(17b)BC8

New Software Features in Cisco IOS Release 12.3(17b)BC8

New Hardware Features in Cisco IOS Release 12.3(17b)BC7

New Software Features in Cisco IOS Release 12.3(17b)BC7

New Hardware Features in Cisco IOS Release 12.3(17b)BC6

New Software Features in Cisco IOS Release 12.3(17b)BC6

New Hardware Features in Cisco IOS Release 12.3(17b)BC5

New Software Features in Cisco IOS Release 12.3(17b)BC5

New Hardware Features in Cisco IOS Release 12.3(17b)BC4

New Software Features in Cisco IOS Release 12.3(17b)BC4

Downstream Load Balancing Distribution with Upstream Load Balancing

New Hardware Features in Cisco IOS Release 12.3(17b)BC3

New Software Features in Cisco IOS Release 12.3(17b)BC3

New Hardware Features in Cisco IOS Release 12.3(17a)BC2

New Software Features in Cisco IOS Release 12.3(17a)BC2

Advanced-Mode DOCSIS Set-Top Gateway Issue 1.2

DOCSIS1.0 ToS Overwrite

New Hardware Features in Cisco IOS Release 12.3(17a)BC1

New Software Features in Cisco IOS Release 12.3(17a)BC1

New Hardware Features in Cisco IOS Release 12.3(17a)BC

New Software Features in Cisco OS Release 12.3(17a)BC

Cable Monitor Enhancements

Configurable Leasequery Server

Dynamic Channel Change (DCC) for Load Balancing

DOCSIS 2.0 SAMIS ECR Data Set

DSX Messages and Synchronized PHS Information

High Availability Support for Encrypted IP Multicast

IPv6 over L2VPN

Management Information Base (MIB) Changes and Enhancements

Pre-equalization Control for Cable Modems

show cable modem Command Changes

New Hardware Features in Cisco IOS Release 12.3(13a)BC6

New Software Features in Cisco IOS Release 12.3(13a)BC6

New Hardware Features in Cisco IOS Release 12.3(13a)BC5

New Software Features in Cisco IOS Release 12.3(13a)BC5

New Hardware Features in Cisco IOS Release 12.3(13a)BC4

New Software Features in Cisco IOS Release 12.3(13a)BC4

New Hardware Features in Cisco IOS Release 12.3(13a)BC3

New Software Features in Cisco IOS Release 12.3(13a)BC3

New Hardware Features in Cisco IOS Release 12.3(13a)BC2

New Software Features in Cisco IOS Release 12.3(13a)BC2

New Hardware Features in Cisco IOS Release 12.3(13a)BC1

New Software Features in Cisco IOS Release 12.3(13a)BC1

New Hardware Features in Cisco IOS Release 12.3(13a)BC

New Software Features in Cisco IOS Release 12.3(13a)BC

Access Control List Support for COPS Intercept

Admission Control for the Cisco CMTS

Advanced-Mode DOCSIS Set-Top Gateway Issue 1.1

Cable Monitor Support for Cisco MC28U Broadband Processing Engines

COPS TCP Support for the Cisco Cable Modem Termination System

cops ip dscp

cops tcp window-size

DOCSIS 1.0 Concatenation Override Featurette

Dynamic SID/VRF Mapping Support

Enhanced Rate Bandwidth Allocation (ERBA) Support for DOCSIS 1.0 Cable Modems

High Availability Features in Cisco IOS Release 12.3(13a)BC

Multicast QoS Support

MLPPP Support

PacketCable Multimedia

Service Independent Intercept (SII) Support on the Cisco uBR7200 Series

Optional Upstream Scheduler Modes

Transparent LAN Service and Layer 2 Virtual Private Networks

Virtual Interface Bundling on the Cisco uBR-MC28/U BPE

New Hardware Features in Cisco IOS Release 12.3(9a)BC8

New Software Features in Cisco IOS Release 12.3(9a)BC8

New Hardware Features in Cisco IOS Release 12.3(9a)BC7

New Software Features in Cisco IOS Release 12.3(9a)BC7

New Hardware Features in Cisco IOS Release 12.3(9a)BC6

New Software Features in Cisco IOS Release 12.3(9a)BC6

New Hardware Features in Cisco IOS Release 12.3(9a)BC5

New Software Features in Cisco IOS Release 12.3(9a)BC5

New Hardware Features in Cisco IOS Release 12.3(9a)BC4

New Software Features in Cisco IOS Release 12.3(9a)BC4

New Hardware Features in Cisco IOS Release 12.3(9a)BC3

New Software Features in Cisco IOS Release 12.3(9a)BC3

New Hardware Features in Cisco IOS Release 12.3(9a)BC2

New Software Features in Cisco IOS Release 12.3(9a)BC2

New Hardware Features in Cisco IOS Release 12.3(9a)BC1

New Software Features in Cisco IOS Release 12.3(9a)BC1

New Hardware Features in Cisco IOS Release 12.3(9a)BC

New Software Features for Cisco IOS Release 12.3(9a)BC

Cable ARP Filter Enhancement

Cisco Broadband Troubleshooter (CBT) 3.2

Cisco CMTS Static CPE Override

Cisco DDC (Dual DOCSIS Channel)

Cisco IOS Release 12.3(9a)BC Command-Line Interface (CLI) Enhancements

DOCSIS Set-top Gateway (DSG) 1.0

MIBs Changes and Updates in Cisco IOS Release 12.3(9a)BC

CISCO-CABLE-QOS-MONITOR MIB

CISCO-CABLE-SPECTRUM-MIB

CISCO-PROCESS-MIB

DOCS-IF-MIB

DOCS-QOS-MIB

DSG-IF-MIB

Load Balancing Support

Spectrum Management Enhancements in Cisco IOS Release 12.3(9a)BC

Subscriber Traffic Management (STM) Version 1.1

Transparent LAN Services (TLS) and L2 Tunneling ATM/SIDs

Usage Based Billing (SAMIS)

Virtual Interface Support and Frequency Stacking Support

MIBs

MIB Changes and Enhancements for Cisco IOS Release 12.3(17a)BC:

Important Notes

How to Upgrade to Cisco IOS Release 12.3(21)BC

Symptoms of Corrupted NVRAM

Conditions of Corrupted NVRAM

New Command Information for Cisco IOS Release 12.3(21)BC3

controller modular-cable

clear cable modem reset

hw-module shutdown

show cable modem summary

Restriction for Cisco IOS Release 12.3(17a)BC

New Command Information for Cisco IOS Release 12.3(13a)BC3

debug cable classifiers

New and Changed Command Reference for Cisco IOS Release 12.3(9a)BC

cable logging layer2events

cable source-verify

cable submgmt default

show cable tech-support

show controllers cable

show tech-support

Caveats

Open Caveats for Release 12.3(23)BC5

Resolved Caveats for Release 12.3(23)BC5

Open Caveats for Release 12.3(23)BC4

Resolved Caveats for Release 12.3(23)BC4

Open Caveats for Release 12.3(21a)BC8

Resolved Caveats for Release 12.3(21a)BC8

Open Caveats for Release 12.3(23)BC3

Resolved Caveats for Release 12.3(23)BC3

Open Caveats for Release 12.3(23)BC2

Resolved Caveats for Release 12.3(23)BC2

Open Caveats for Release 12.3(21a)BC7

Resolved Caveats for Release 12.3(21a)BC7

Open Caveats for Release 12.3(23)BC1

Resolved Caveats for Release 12.3(23)BC1

Open Caveats for Release 12.3(21a)BC6

Resolved Caveats for Release 12.3(21a)BC6

Open Caveats for Release 12.3(21a)BC5

Resolved Caveats for Release 12.3(21a)BC5

Open Caveats for Release 12.3(23)BC

Resolved Caveats for Release 12.3(23)BC

Open Caveats for Release 12.3(21a)BC4

Resolved Caveats for Release 12.3(21a)BC4

Open Caveats for Release 12.3(21a)BC3

Resolved Caveats for Release 12.3(21a)BC3

Open Caveats for Release 12.3(21a)BC2

Resolved Caveats for Release 12.3(21a)BC2

Open Caveats for Release 12.3(21a)BC1

Resolved Caveats for Release 12.3(21a)BC1

Open Caveats for Release 12.3(21)BC

Resolved Caveats for Release 12.3(21)BC

Open Caveats for Release 12.3(17b)BC9

Resolved Caveats for Release 12.3(17b)BC9

Open Caveats for Release 12.3(17b)BC8

Resolved Caveats for Release 12.3(17b)BC8

Open Caveats for Release 12.3(17b)BC7

Resolved Caveats for Release 12.3(17b)BC7

Open Caveats for Release 12.3(17b)BC6

Resolved Caveats for Release 12.3(17b)BC6

Open Caveats for Release 12.3(17b)BC5

Resolved Caveats for Release 12.3(17b)BC5

Open Caveats for Release 12.3(17b)BC4

Resolved Caveats for Release 12.3(17b)BC4

Open Caveats for Release 12.3(17b)BC3

Resolved Caveats for Release 12.3(17b)BC3

Open Caveats for Release 12.3(17a)BC2

Resolved Caveats for Release 12.3(17a)BC2

Open Caveats for Release 12.3(17a)BC1

Resolved Caveats for Release 12.3(17a)BC1

Open Caveats for Release 12.3(17a)BC

Resolved Caveats for Release 12.3(17a)BC

Open Caveats for Release 12.3(13a)BC6

Resolved Caveats for Release 12.3(13a)BC6

Open Caveats for Release 12.3(13a)BC5

Resolved Caveats for Release 12.3(13a)BC5

Open Caveats for Release 12.3(13a)BC4

Resolved Caveats for Release 12.3(13a)BC4

Open Caveats for Release 12.3(13a)BC3

Resolved Caveats for Release 12.3(13a)BC3

Open Caveats for Release 12.3(13a)BC2

Resolved Caveats for Release 12.3(13a)BC2

Open Caveats for Release 12.3(13a)BC1

Resolved Caveats for Release 12.3(13a)BC1

Open Caveats for Release 12.3(13a)BC

Resolved Caveats for Release 12.3(13a)BC

Open Caveats for Release 12.3(9a)BC8

Resolved Caveats for Release 12.3(9a)BC8

Open Caveats for Release 12.3(9a)BC7

Resolved Caveats for Release 12.3(9a)BC7

Open Caveats for Release 12.3(9a)BC6

Resolved Caveats for Release 12.3(9a)BC6

Open Caveats for Release 12.3(9a)BC5

Resolved Caveats for Release 12.3(9a)BC5

Open Caveats for Release 12.3(9a)BC4

Resolved Caveats for Release 12.3(9a)BC4

Open Caveats for Release 12.3(9a)BC3

Resolved Caveats for Release 12.3(9a)BC3

Open Caveats for Release 12.3(9a)BC2

Resolved Caveats for Release 12.3(9a)BC2

Open Caveats for Release 12.3(9a)BC1

Resolved Caveats for Release 12.3(9a)BC1

Open Caveats for Release 12.3(9a)BC

Resolved Caveats for Release 12.3(9a)BC

Related Documentation

Release-Specific Documents

Platform-Specific Documents

Feature Modules

Cisco Feature Navigator

Cisco IOS Software Documentation Set

Documentation Modules

Release 12.3 Documentation Set

Obtaining Documentation, Obtaining Support, and Security Guidelines

Release Notes for Cisco uBR7200 Series for Cisco IOS Release 12.3 BC

Revised: October 27, 2008, OL-6763-43

CDC Date: October 27, 2008

The release notes for Cisco IOS Release 12.3BC for the Cisco uBR7200 series universal broadband routers describe the enhancements and caveats for all releases in the cable-specific, early deployment, 12.3BC release trains. Some of the most recent releases in 12.3BC include 12.3(17b)BCx-, 12.3(21a)BCx-, and 12.3(23)BCx-based releases.

These release notes are updated with each release in the train. This update adds information for Cisco IOS Release 12.3(23)BC5. For a list of the updated caveats that apply to each release, see the "Caveats" section and Caveats for Cisco IOS Release 12.3 T. Use these release notes in conjunction with the cross-platform Release Notes for Cisco IOS Release 12.3 T located on Cisco.com and the Documentation CD-ROM.

Note Cisco IOS Release 12.3(23)BC5 does not include support for telco-return images.

Cisco recommends that you view the field notices for this release to see if your software or hardware platforms are affected. If you have an account on Cisco.com, you can find field notices at http://www.cisco.com/en/US/support/tsd_products_field_notice_summary.html. If you do not have a Cisco.com login account, you can find field notices at http://www.cisco.com/en/US/support/tsd_products_field_notice_summary.html.

Contents

These release notes describe the following topics:

•Introduction

•Early Deployment Releases

•System Requirements

•Feature Support

•New and Changed Information

•MIBs

•Important Notes

•Caveats

•Related Documentation

•Obtaining Documentation, Obtaining Support, and Security Guidelines

Introduction

For information on new features and the Cisco IOS documentation set supported by Cisco IOS Release 12.3(23)BC5, see the "New and Changed Information" section and the "Related Documentation" section.

Cisco uBR7200 Series Universal Broadband Routers

The Cisco uBR7200 series universal broadband routers—the Cisco uBR7223, the Cisco uBR7246, and the Cisco uBR7246VXR—are based on the Data-over-Cable Service Interface Specification (DOCSIS) standards. Each is designed to be installed at a cable operator's headend facility or distribution hub and to function as the cable modem termination system (CMTS) for subscriber-end devices such as the Cisco uBR905 and Cisco uBR925 cable access routers, and other DOCSIS-compliant cable modems (CMs) and set-top boxes (STBs).

Cisco uBR7200 series universal broadband routers allow two-way transmission of digital data and Voice over IP (VoIP) traffic over a hybrid fiber-coaxial (HFC) network. The Cisco uBR7200 series routers support IP routing with a wide variety of protocols and combinations of Ethernet, Fast Ethernet, Gigabit Ethernet, serial, High-Speed Serial Interface (HSSI), Packet over SONET (POS) OC-3 and OC-12c, Asynchronous Transfer Mode (ATM) media, and EtherChannel trunking technology.

Cisco IOS Release 12.3(23)BC5 supports the Cisco uBR7246VXR, Cisco uBR7246, and Cisco uBR7223 universal broadband routers.

Cisco uBR7246VXR Universal Broadband Router

The Cisco uBR7246VXR offers an industry-proven CMTS and carrier-class router in a scalable platform with a high-performance network processing engine to support data, voice, and video services for medium to large network installations.

The Cisco uBR7246VXR provides the following major hardware features:

•High-performance network processing engine

•I/O controller

•Up to two network interface port adapters

•Up to four cable interface line cards

•Up to two removable power supplies providing load-sharing and redundancy capabilities

•Two Personal Computer Memory Card International Association (PCMCIA) slots that allow for software upgrades through the use of Flash memory cards

Note The Cisco uBR7246VXR chassis does not support the MC11-FPGA cable interface line card.

Cisco uBR7246 Universal Broadband Router

The Cisco uBR7246 offers an industry-proven CMTS and carrier-class router in a scalable platform to support data, voice, and video services for medium to large network installations.

The Cisco uBR7246 provides the following major hardware features:

•Network processing engine

•I/O controller

•Up to two network interface port adapters

•Up to four cable interface line cards

•Up to two removable power supplies providing load-sharing and redundancy capabilities

•Two PCMCIA slots that allow for software upgrades through the use of Flash memory cards

Note The Cisco uBR7246 router reached its End of Sale (EOS) point on November 15, 2001. For details see Product Bulletin No. 1438, which is at the following URL:
http://www.cisco.com/en/US/products/hw/cable/ps2217/products_eol_models.html.

Cisco uBR7223 Universal Broadband Router

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

The Cisco uBR7223 provides the following major hardware features:

•High-performance network processing engine

•I/O controller

•One network interface port adapter

•Up to two cable interface line cards

•One removable power supply (The Cisco uBR7223 does not feature load-sharing and redundant power supply capability like the Cisco uBR7246VXR and Cisco uBR7246.)

•Two PCMCIA slots that allow for software upgrades through the use of Flash memory cards

Note The Cisco uBR7223 router reached its End of Sale (EOS) point on October 23, 2002. For details see Product Bulletin No. 1955, which is at the following URL: http://www.cisco.com/en/US/products/hw/cable/ps2217/products_eol_models.html.

Cisco uBR7200 Series Universal Broadband Router Overview

Table 1 provides a quick overview of the major hardware features of the three Cisco uBR7200 series universal broadband routers.

Table 1 Cisco uBR7200 Series Universal Broadband Router Overview

Supported Hardware

Cisco uBR7246VXR

Cisco uBR7246¹

Cisco uBR7223²

Network Processing Engine

One of the following:

•UBR7200-NPE-G1

•NPE-225

•NPE-300

•NPE-400

One of the following:

•NPE-150

•NPE-200

•NPE-225

One of the following:

•NPE-150

•NPE-200

•NPE-225

I/O Controller

One of the following:

•UBR7200-I/O

•UBR7200-I/O-FE

•UBR7200-I/O-2FE/E

One of the following:

•UBR7200-I/O

•UBR7200-I/O-FE

One of the following:

•UBR7200-I/O

•UBR7200-I/O-FE

Network Interface Port Adapters

up to 2

up to 2

1

Cable Interface Line Cards

up to 4

up to 4

up to 2

Removable Power Supplies

up to 2

up to 2

1

PCMCIA Slots

2

2

2

¹End of Sale (EOS) point on November 15, 2001.

²End of Sale (EOS) point on October 23, 2002.

Note The UBR7200-NPE-G1 does not require that an I/O controller be installed. For additional information, refer to the Release Notes for Cisco uBR7200 Series for Cisco IOS Release 12.2 BC on Cisco.com: http://www.cisco.com/en/US/docs/ios/12_2/12_2b/12_2bc/release/notes/u7208bc1.html.

Early Deployment Releases

These release notes describe the Cisco uBR7200 series universal broadband routers for Cisco IOS Release 12.3(23)BC5. Feature support is cumulative from release to release, unless otherwise noted.

Supported Features

Cisco IOS Release 12.3(23)BC5 supports the following new features.

Table 2 Early Deployment (ED) Releases for the Cisco uBR7200 Series

ED Release

Software Features¹ and MIBs²

Hardware Features

Hardware
Availability

Cisco IOS Release 12.3(23)BC5

None

None

Now

Cisco IOS Release 12.3(23)BC4

None

None

Now

Cisco IOS Release 12.3(21a)BC8

None

None

Now

Cisco IOS Release 12.3(23)BC3

None

None

Now

Cisco IOS Release 12.3(23)BC2

•Subscriber Traffic Management Version 1.2

•Upstream Utilization Optimization

None

Now

Cisco IOS Release 12.3(21a)BC7

None

None

Now

Cisco IOS Release 12.3(23)BC1

PacketCable Subscriber ID Support

None

Now

Cisco IOS Release 12.3(21a)BC6

None

None

Now

Cisco IOS Release 12.3(21a)BC5

None

None

Now

Cisco IOS Release 12.3(23)BC

None

None

Now

Cisco IOS Release 12.3(21a)BC4

None

None

Now

Cisco IOS Release 12.3(21a)BC3

•Control Point Discovery (CPD)

None

Now

Cisco IOS Release 12.3(21a)BC2

None

None

Now

Cisco IOS Release 12.3(21a)BC1

None

None

Now

Cisco IOS Release 12.3(21)BC

•Automatic Virtual Interface Bundles

•Cable DHCP Enhancements

•Cable Duplicate MAC Address Reject

•PacketCable Client Accept Timeout

•Per Downstream Static Multicast

•SAMIS Source Address Management

•Service Flow Admission Control

None

Now

Cisco IOS Release 12.3(17b)BC9

None

None

Now

Cisco IOS Release 12.3(17b)BC8

None

None

Now

Cisco IOS Release 12.3(17b)BC7

None

None

Now

Cisco IOS Release 12.3(17b)BC6

None

None

Now

Cisco IOS Release 12.3(17b)BC5

None

None

Now

Cisco IOS Release 12.3(17b)BC4

•Downstream Load Balancing

None

Now

Cisco IOS Release 12.3(17b)BC3

None

None

Now

Cisco IOS Release 12.3(17a)BC2

•Advanced-Mode DOCSIS Set-Top Gateway Issue 1.2

•DOCSIS1.0 ToS Overwrite

None

Now

Cisco IOS Release 12.3(17a)BC1

None

None

Now

Cisco IOS Release 12.3(17a)BC

•Cable Monitor Enhancements

•Configurable Leasequery Server

•Dynamic Channel Change (DCC) for Load Balancing

•DOCSIS 2.0 SAMIS ECR Data Set

•DSX Messages and Synchronized PHS Information

•High Availability Support for Encrypted IP Multicast

•IPv6 over L2VPN

•Management Information Base (MIB) Changes and Enhancements

•Pre-equalization Control for Cable Modems

None

Now

Cisco IOS Release 12.3(13a)BC6

None

None

Now

Cisco IOS Release 12.3(13a)BC5

None

None

Now

Cisco IOS Release 12.3(13a)BC4

None

None

Now

Cisco IOS Release 12.3(13a)BC3

None

None

Now

Cisco IOS Release 12.3(13a)BC2

None

None

Now

Cisco IOS Release 12.3(13a)BC1

None

None

Now

Cisco IOS Release 12.3(13a)BC

•Access Control List Support for COPS Intercept

•Admission Control for the Cisco CMTS

•Advanced-Mode DOCSIS Set-Top Gateway Issue 1.1

•Cable Monitor Support for Cisco MC28U Broadband Processing Engines

•COPS TCP Support for the Cisco Cable Modem Termination System

•DOCSIS 1.0 Concatenation Override Featurette

•Dynamic SID/VRF Mapping Support

•Enhanced Rate Bandwidth Allocation (ERBA) Support for DOCSIS 1.0 Cable Modems

•High Availability Features in Cisco IOS Release 12.3(13a)BC

•Multicast QoS Support

•MLPPP Support

•PacketCable Multimedia

•Service Independent Intercept (SII) Support on the Cisco uBR7200 Series

•Optional Upstream Scheduler Modes

•Transparent LAN Service and Layer 2 Virtual Private Networks

•Virtual Interface Bundling on the Cisco uBR-MC28/U BPE

None

Now

Cisco IOS Release 12.3(9a)BC8

None

None

Now

Cisco IOS Release 12.3(9a)BC7

None

None

Now

Cisco IOS Release 12.3(9a)BC6

None

None

Now

Cisco IOS Release 12.3(9a)BC5

None

None

Now

Cisco IOS Release 12.3(9a)BC4

None

None

Now

Cisco IOS Release 12.3(9a)BC3

None

None

Now

Cisco IOS Release 12.3(9a)BC2

None

None

Now

Cisco IOS Release 12.3(9a)BC1

None

None

Now

Cisco IOS Release 12.3(9a)BC

•Cisco Broadband Troubleshooter (CBT) 3.2

•Cisco IOS Release 12.3(9a)BC Command-Line Interface (CLI) Enhancements

•DOCSIS Set-top Gateway (DSG) 1.0

•Cisco DDC (Dual DOCSIS Channel)

•Dynamic Shared Secret (DMIC) with OUI Exclusion for DOCSIS

•Virtual Interface Support and Frequency Stacking Support

•Load Balancing Support

•Subscriber Traffic Management (STM) Version 1.1

•Transparent LAN Services (TLS) and L2 Tunneling ATM/SIDs

•Usage Based Billing (SAMIS)

•Virtual Interface Support and Frequency Stacking Support

None

Now

¹Only major features are listed.

²MIB = Management Information Base

System Requirements

This section describes the system requirements for Cisco IOS Release 12.3(23)BC5 with the following topics:

•Memory Recommendations

•DOCSIS System Interoperability on the Cisco uBR7246VXR CMTS

•Supported Hardware

•Determining Your Software Release

•Upgrading to a New Software Release

Memory Recommendations

Table 3 displays the memory recommendations of the Cisco IOS feature sets for the Cisco uBR7200 series universal broadband routers for Cisco IOS Release 12.3 BC. Cisco uBR7200 series routers are only available with a 48 MB or 128 MB of Flash disk memory on the I/O Controller cards. The UBR7200-NPE-G1 uses compact Flash disk only.

Note Flash disks, an alternative to linear Flash memory, are Flash memory-based devices that can be used as file storage media in the PCMCIA card slots of the I/O Controllers. Each I/O Controller has two PCMCIA slots and can be configured with up to 256 MB of Flash disk memory.

Table 3 Memory Recommendations for the Cisco uBR7200 Series Routers, Cisco IOS Release 12.3 BC Feature Sets

Feature Set

Software Image

Recommended
Flash Memory

Recommended
DRAM Memory

Runs
From

Two-Way Data/VoIP Images

DOCSIS Two-Way

ubr7200-p-mz

32 MB Flash

256 MB DRAM

RAM

DOCSIS Two-Way IP Plus

ubr7200-is-mz

32 MB Flash

256 MB DRAM

RAM

DOCSIS Two-Way with BPI

ubr7200-k8p-mz

32 MB Flash

256 MB DRAM

RAM

DOCSIS Two-Way IP Plus with BPI

ubr7200-ik8s-mz

32 MB Flash

256 MB DRAM

RAM

DOCSIS Two-Way 3DES

ubr7200-k9p-mz

32 MB Flash

256 MB DRAM

RAM

DOCSIS Two-Way 3DES IP Plus

ubr7200-ik9s-mz

32 MB Flash

256 MB DRAM

RAM

Boot Image

UBR7200 Boot Image

ubr7200-kboot-mz

None

None

—

UBR7200 Boot Image

ubr7200-boot-mz

None

None

—

The image subset legend for Table 3 is as follows:

•i = IP routing, MPLS-VPN support, and non-cable interface bridging, including Network Address Translation (NAT)

•k8 = DOCSIS Baseline Privacy

•p = IP routing with Intermediate System-to-Intermediate System (IS-IS) and Border Gateway Protocol (BGP); MPLS-VPN support; no bridging and no NAT

•s = "Plus" features: NAT and Inter-Switch Link (ISL)

•k9 = 3DES level of encryption

Note All images support all of the hardware listed in the "Supported Hardware" section, unless otherwise indicated.

Note A Cisco uBR7200 series router requires 256 MB of DRAM memory on the NPE processor card when HCCP redundancy is configured and the router is supporting more than 3,000 cable modems. Using less memory in these conditions results in temporary out-of-memory situations and incomplete synchronization between the Working and Protect interfaces.

DOCSIS System Interoperability on the Cisco uBR7246VXR CMTS

This section describes the operation of primary interoperability features in the Cisco uBR7246VXR router. For additional DOCSIS information for the Cisco uBR7246VXR router, refer to the following document on Cisco.com:

•DOCSIS 1.1 for Cisco uBR7200 Series Universal Broadband Routers

http://www.cisco.com/en/US/docs/cable/cmts/feature/DOCSIS11.html.

•DOCSIS 1.1 for the Cisco CMTS

http://www.cisco.com/en/US/docs/cable/cmts/feature/guide/ufg_docs.html.

DOCSIS 1.0 Baseline Privacy

DOCSIS baseline privacy interface (BPI) gives subscribers data privacy across the RF network, encrypting traffic flows between the CMTS and cable modem. BPI ensures that a cable modem, uniquely identified by its Media Access Control (MAC) address, can obtain keying material for services only it is authorized to access.

To enable BPI, choose software at both the CMTS and cable modem that support the BPI mode of operation. For the Cisco uBR7200 series software, choose an image with "k8" in its file name or BPI in the feature set description. BPI must be enabled using the DOCSIS configuration file.

The cable modem must also support BPI. Cable modems must have factory-installed RSA private/public key pairs to support internal algorithms to generate key pairs prior to first BPI establishment.

Note RSA stands for Rivest, Shamir, and Adelman, inventors of a public-key cryptographic system.

Cable Modem Interoperability

•The Cisco uBR7200 series router interoperates with DOCSIS-based two-way cable modems that support basic Internet access, VoIP, or Virtual Private Networks (VPNs).

•EuroDOCSIS cable modems or set-top boxes (STBs) with integrated EuroDOCSIS cable modems using Cisco uBR-MC16E cable interface line cards and Cisco OS Release 12.2(4)BC1 or higher. EuroDOCSIS operation support includes 8-MHz Phase Alternating Line (PAL) or Systeme Electronique Couleur Avec Memoire (SECAM) channel plans.

Note Cisco IOS Release 12.3(23)BC5 does not support telco-return cable modems or STBs.

Configuring the CMTS Cable Interface When in Routing Mode

If you have configured a Cisco cable modem for routing mode and are also using the cable-modem dhcp-proxy nat command on the cable modem, you must configure the corresponding cable interface on the Cisco uBR7200 series router with the cable dhcp-giaddr policy command. Otherwise, the cable interface could flap and the cable modem could go offline unpredictably.

DOCSIS 1.0 and 1.0+ Extensions

Earlier releases of Cisco IOS software for the Cisco uBR7246VXR router provide support for the original DOCSIS 1.0 standard, featuring basic best-effort data traffic and Internet access over the coaxial cable network. The DOCSIS 1.0+ extensions provides Quality of Service (QoS) enhancements for real-time traffic, such as voice calls, in anticipation of full DOCSIS 1.1 support.

Note All DOCSIS 1.0 extensions are activated only when a cable modem or Cisco uBR924 that supports these extensions solicits services using dynamic MAC messages or the feature set. If the cable modems in your network are pure DOCSIS 1.0-based, they receive regular DOCSIS 1.0 treatment from the CMTS.

DOCSIS 1.1 Extensions

The DOCSIS 1.1 specification provides the following functional enhancements over DOCSIS 1.0 coaxial cable networks:

•Enhanced Quality of Service (QoS) to give priority for real-time traffic such as voice and video.

–The DOCSIS 1.0 QoS model (a Service IDs (SID) associated with a QoS profile) has been replaced with a service flow model that allows greater flexibility in assigning QoS parameters to different types of traffic and in responding to changing bandwidth conditions.

–Multiple service flows per cable modem supported in either direction due to packet classifiers.

–Support for multiple service flows per cable modem allows a single cable modem to support a combination of data, voice, and video traffic.

–Greater granularity is available in QoS per cable modem (in either direction), using unidirectional service flows.

–Dynamic MAC messages are supported to create, modify, and tear down QoS service flows dynamically when requested by a DOCSIS 1.1 cable modem.

•Several QoS models are supported for the upstream.

–Best effort-Data traffic is sent on a non-guaranteed best-effort basis.

–Committed Information Rate (CIR) supports the guaranteed minimum bandwidth for data traffic.

–Unsolicited Grants (UGS) support constant bit rate (CBR) traffic, such as voice, that is characterized by fixed size packets at fixed intervals.

–Real Time Polling (rtPS) supports Real Time service flows, such as video, that produce unicast, variable size packets at fixed intervals.

–Unsolicited Grants with Activity Detection (USG-AD) support the combination of UGS and RTPS, to accommodate real time traffic that might have periods of inactivity (such as voice using silence suppression). The service flow uses UGS fixed grants while active, but switches to RTPS polling during periods of inactivity to avoid wasting unused bandwidth.

•Enhanced time-slot scheduling mechanisms support guaranteed delay/jitter sensitive traffic on the shared multiple access upstream link.

•Payload Header Suppression (PHS) conserves link-layer bandwidth by suppressing unnecessary packet headers on both upstream and downstream traffic flows.

•Layer 2 fragmentation on the upstream prevents large data packets from affecting real-time traffic, such as voice and video. Large data packets are fragmented and then transmitted in the time slots that are available between the time slots used for the real-time traffic.

•Concatenation allows a cable modem to send multiple MAC frames in the same time slot, as opposed to making an individual grant request for each frame. This avoids wasting upstream bandwidth when sending a number of very small packets, such as TCP acknowledgement packets.

•DOCSIS 1.1 cable modems can coexist with DOCSIS 1.0 and 1.0+ cable modems in the same network—the Cisco uBR7246VXR router provides the levels of service that are appropriate for each cable modem.

DOCSIS 1.1 Quality of Service

The DOCSIS 1.1 QoS framework is based on the following objects:

•Service class: A collection of settings maintained by the CMTS that provide a specific QoS service tier to a cable modem that has been assigned a service flow within a particular service class.

•Service flow: a unidirectional sequence of packets receiving a service class on the DOCSIS link.

•Packet classifier: A set of packet header fields used to classify packets onto a service flow to which the classifier belongs.

•PHS rule: A set of packet header fields that are suppressed by the sending entity before transmitting on the link, and are restored by receiving entity after receiving a header-suppressed frame transmission. Payload Header Suppression increases the bandwidth efficiency by removing repeated packet headers before transmission.

In DOCSIS 1.1, the basic unit of QoS is the service flow, which is a unidirectional sequence of packets transported across the RF interface between the cable modem and CMTS. A service flow is characterized by a set of QoS parameters such as latency, jitter, and throughput assurances.

Every cable modem establishes a primary service flow in both the upstream and downstream directions. The primary flows maintain connectivity between the cable modem and CMTS at all times.

In addition, a DOCSIS 1.1 cable modem can establish multiple secondary service flows. The secondary service flows can either be permanently created (they persist until the cable modem is reset or powered off) or they can be created dynamically to meet the needs of the on demand traffic being transmitted.

Each service flow has a set of QoS attributes associated with it. These QoS attributes define a particular class of service and determine characteristics such as the maximum bandwidth for the service flow and the priority of its traffic. The class of service attributes can be inherited from a preconfigured CMTS local service class (class-based flows), or they can be individually specified at the time of the creation of the service flow.

Each service flow has multiple packet classifiers associated with it, which determine the type of application traffic allowed to be sent on that service flow. Each service flow can also have a Payload Header Suppression (PHS) rule associated with it to determine which portion of the packet header will be suppressed when packets are transmitted on the flow.

ARP Filter

The cable arp filter command, introduced with Cisco IOS Release 12.2(15)BC2b, enables service providers to filter ARP request and reply packets, to prevent a large volume of such packets from interfering with the other traffic on the cable network. For additional information refer to the following document on Cisco.com:

•Cable ARP Filtering

http://www.cisco.com/en/US/docs/cable/cmts/feature/cblarpfl.html.

Additional Cable Modem Interoperability

In Cisco IOS Release 12.2(11)BC3c, the following new or enhanced software features are implemented for DOCSIS 1.1 functionality. Feature support continues with Cisco IOS Release 12.3(9a)BC. (For more information, see the feature module DOCSIS 1.1 for Cisco uBR7200 Series Universal Broadband Routers).

•Clock Synchronization

The Cisco uBR7200 series routers support clock hardware and software to enable high-quality delivery of IP telephony services through synchronized data transmissions. To support the clock feature set, a Cisco uBR7246VXR chassis must be used. The Cisco uBR7246VXR must contain a clock card and either a Cisco uBR-MC16E or Cisco uBR-MC28C cable interface line card. Only these cards support the external clock reference from the clock card to distribute that signal to CMs or STBs attached to the specific network segments.

Each cable modem must also support VoIP applications and the clock reference feature set to enable synchronized timing. The Cisco uBR924 and Cisco uBR925 cable access routers, running Cisco IOS Release 12.0(7)T or later, supports the clock reference feature set automatically.

•National Clock Card

The Cisco uBR7246VXR supports the National Clock Card. The National Clock Card allows the Cisco uBR7246VXR to accept a primary or secondary external clock reference. If there is no primary clock, the Clock Card goes into Holdover. After a period of 2-10 seconds, the Clock Card switches to the secondary clock. When the primary clock is back online, the Clock Card switches to the primary clock after a period of 2-10 seconds. The National Clock Card requires the Cisco uBR-MC1xS or the Cisco uBR-MC1xE cable interface line card.

Supported Hardware

This section describes the hardware supported by the Cisco uBR7246VXR Universal Broadband Router in Cisco IOS 12.3BC software releases.

Network Processing Engines

The Cisco uBR7246VXR supports the following Network Processing Engines (NPEs) in Cisco IOS Release 12.3(23)BC5:

•UBR7200-NPE-G1

•NPE-225

•NPE-300

•NPE-400

Note The Cisco UBR7200-NPE-G1, Cisco NPE-300 and Cisco NPE-400 are not supported on the Cisco uBR7223 and the Cisco uBR7246. The Cisco NPE-150 and Cisco NPE-200 are not supported on the Cisco uBR7246VXR.

Note The Cisco NPE-300 is at end-of-life and has not been orderable since November 15, 2001. See the following product bulletin for more details on the Cisco NPE-300 recommended upgrade path: http://www.cisco.com/en/US/products/hw/cable/ps2217/prod_eol_notices_list.html.

For more information, see the Network Processing Engine and Network Services Engine Installation and Configuration guide and the Memory Replacement Instructions for the Network Processing Engine or Network Services Engine and Input/Output Controller guide on Cisco.com.

I/O Controllers

Cisco IOS Release 12.3(23)BC5 supports the following I/O controllers for the Cisco uBR7200 series universal broadband routers:

•UBR7200-I/O-2FE/E input/output controller—Two Fast Ethernet ports and one Ethernet port; equipped with 2 RJ-45 receptacles for 10/100 Mbps operation. Supported for the Cisco uBR7246VXR router. The Cisco IOS Release 12.1(10)EC boot helper image [ubr7200-boot-mz.12.1-10.EC] must be used on this controlle.r

•UBR7200-I/O-FE—One Fast Ethernet port; equipped with an MII receptacle and an RJ-45 receptacle for use at 100 Mbps full-duplex or half-duplex operation. Only 1 receptacle can be configured for use at a time. Supported for Cisco uBR7223, Cisco uBR7246, and Cisco uBR7246VXR routers. The 12.0(15)SC [ubr7200-boot-mz.12.0-15.SC] boot helper image is recommended for this controller.

•UBR7200-I/O—Has no Fast Ethernet port. Supported for Cisco uBR7223, Cisco uBR7246, and Cisco uBR7246VXR routers. The 12.0(15)SC [ubr7200-boot-mz.12.0-15.SC] boot helper image is recommended for this controller.

Note The Single-Port Fast Ethernet I/O Controller (UBR7200-I/O-FE) reached its End of Sale (EOS) point on June 30, 2003. For details, see the Addendum to Product Bulletin, No. 1725, which is at the following URL: http://www.cisco.com/en/US/products/hw/cable/ps2217/prod_eol_notices_list.html

Note Do not use the 12.1(10)EC boot helper image with the UBR7200-I/O-FE and UBR7200-I/O controllers.

Cable Interface Line Cards

Table 4 provides a quick overview of the cable interface line cards that are supported in Cisco IOS Release 12.3(23)BC5 for the Cisco uBR7200 series routers:

Table 4 Cisco uBR7200 Series Cable Interface Line Cards

Cable Interface Line Card

Upstream
Ports

Downstream
Ports

Additional Features

MC16C

6

1

MC16E

6

1

EuroDOCSIS (Annex A) Support

MC16S

6

1

Supports advanced spectrum management features.

MC16U

6

1

A-TDMA, Adv PHY, CPU

MC16X

6

1

Features dedicated media access control (MAC) layer hardware.

MC28C

8

2

MC28C-BNC

8

2

BNC connectors instead of F-connectors

MC28U

8

2

Integrated upconverter

MC28X

8

2

Features dedicated media access control (MAC) layer hardware.

OIR of Cable Interface Line Cards

Technically, the Cisco uBR7200 series universal broadband routers support true online insertion and removal (OIR), or "hot swapping" of cable interface line cards only when exchanging cable interface line cards of the exact same type (for example, exchanging a Cisco uBR-MC28U card for another Cisco uBR-MC28U card). Under these conditions, no reload of the router is required.

Caution When you OIR different types of cable interface line cards (for example, a Cisco uBR-MC16C card replaced by a Cisco uBR-MC16S card, or Cisco uBR-MC16C card replaced by a Cisco uBR-MC28U card), you not only might have to reconfigure the interfaces, you must reload the router.

Port Adapter Cards

Table 5 lists and describes the port adapters supported by Cisco uBR7200 series routers in Cisco IOS Release 12.3(23)BC5.

Note Table 5 identifies some port adapters for the Cisco uBR7200 series routers that are in an end-of-life (EOL) stage. See the following product bulletin for more details on these EOL port adapters:
http://www.cisco.com/en/US/products/hw/cable/ps2217/prod_eol_notices_list.html.

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 uBR7246VXR router.

Table 5 Cisco uBR7200 Series Port Adapter Releases

Product Number

Cisco uBR7223

Cisco uBR7246

Cisco uBR7246VXR

End-of-Life

Ethernet

PA-4E—4-port Ethernet 10BASE-T port adapter

12.2(4)XF1

12.2(4)XF1

12.2(4)XF1

No

PA-8E—8-port Ethernet 10BASE-T port adapter

12.2(4)XF1

12.2(4)XF1

12.2(4)XF1

Yes

PA-FE-TX—1-port 100BASE-TX Fast Ethernet port adapter

12.2(4)XF1

12.2(4)XF1

12.2(4)XF1

No

PA-FE-FX—1-port 100BASE-FX Fast Ethernet port adapter

12.2(4)XF1

12.2(4)XF1

12.2(4)XF1

No

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

12.2(4)XF1

12.2(4)XF1

12.2(4)XF1

Yes

PA-2FEISL-FX—2-port 100BASE-FX Fast Ethernet port adapter with ISL support

12.2(4)XF1

12.2(4)XF1

12.2(4)XF1

Yes

PA-12E/2FE—12-port 10BASE-T and 2-port 10/100BASE-TX port adapter

Not applicable