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Table of Contents

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

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

September 26, 2000

These release notes for the Cisco uBR7200 series universal broadband routers document the cable-specific, leading-edge, EC-train, and describe the enhancements and caveats provided in Cisco IOS Release 12.1(3a)  EC. These release notes are updated with each release in the train. For a list of the software caveats that apply to Cisco IOS Release 12.1(3a) EC, see the "Caveats" section.

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.

Contents

These release notes describe the following topics:

Introduction

Cisco uBR7200 Series Universal Broadband Routers

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 (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. 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 telco-return delivery mechanism enables cable operators to accelerate deployment of high-speed data services before the cable systems are upgraded to two-way plants.

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 IOS Release 12.1 EC supports three universal broadband routers:

Cisco uBR7246 VXR 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 uBR7246 VXR provides the following major hardware features:

Note   The Cisco uBR7246 VXR chassis does not support the MC11-FPGA cable modem 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:

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:

Universal Broadband Router Overview

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


Table 1: Universal Broadband Router Overview
Hardware Supported uBR7246 VXR uBR7246 uBR7223

Network Processing Engine

One of the following:

  • NPE-175

  • NPE-225

  • NPE-300

One of the following:

  • NPE-150

  • NPE-200

  • NPE-175

  • NPE-225

One of the following:

  • NPE-150

  • NPE-200

  • NPE-175

  • NPE-225

I/O Controller

1

1

1

Network Interface Port Adapters

up to 2

up to 2

1

Cable Modem 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

Early Deployment Releases

These release notes describe the Cisco uBR7200 universal broadband series routers for Cisco IOS Release 12.1(3a) EC. Release 12.1 EC is an early deployment (ED) release based on Release 12.1 E, which serves as the train's starting point. (Release 12.1 E, in turn, is based on Release 12.1 Mainline.) Early deployment releases contain fixes to software caveats as well as support for new Cisco hardware and software features. Feature support is cumulative from release to release, unless otherwise noted.

Table 2 lists the features supported by the Cisco uBR7200 series in Cisco IOS Release 12.1(3a) EC.


Table 2: Early Deployment (ED) Releases for the Cisco uBR7200 Series
ED Release Additional Software Features1 and MIBs2 Additional Hardware Features Hardware
Availability

12.1(3a) EC

New in Release 12.1(3a) EC:

  • Hot-Standby 1+1 Redundancy

  • Dynamic Upstream Modulation

  • Cable Monitor

  • Cable Interface Setup Facility

  • Overlapping Subinterface IP Addresses

MC28 Cable Modem Card

10/00

12.1(3a) EC

Enhancements were made to the following MIBs:

  • CISCO-DOCS-EXT-MIB

  • DOC-IF-MIB

12.1(2) EC1

New in Release 12.1(2) EC1:

  • MPLS3 VPN4 Support for Subinterfaces and Interface Bundles

  • Dynamic Ranging Support

  • Enhanced Per-Modem Error Counter

  • Configurable Alternate Termination System Information Messages

  • Internal Modem Configuration File Editor

  • "max-cpe" CLI override

Port Adapters5:

  • Dynamic Packet Transport

    • PA-SRP-OC12SML

    • PA-SRP-OC12SMI

    • PA-SRP-OC12MM

  • PA-4E1G/120

  • PA-E3

  • PA-MC-4T1

  • PA-MC-8T1

  • PA-A3-T3

  • PA-A3-E3

  • PA-4T+

  • PA-8T-V35

  • PA-8T-X21

Now

12.1(2) EC1

New MIBs Supported:

  • DOCSIS Ethernet MIB Objects Support (RFC6 2665)

  • DOCSIS OSSI7 Objects Support (RFC 2233)

  • Multicast BPI8 MIB Support

  • Link Up/Down Traps Support (RFC 2233)

  • SNMP9 Cable Modem Remote Query

  • SNMP Objects for Clear Host, Clear Cable Modem, and Show Current CPEs10

1Only major features are listed.
2MIB = Management Information Base
3MPLS = Multiprotocol Label Switching
4VPN = Virtual Private Network
5See Table 5 on page 11 for information about port adapters supported on each chassis.
6RFC = Request For Comments
7OSSI = Operations Support System Interface
8BPI = baseline privacy interface
9SNMP = Simple Network Management Protocol
10CPE = customer premises equipment

System Requirements

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

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 12.1(3a) EC. Cisco uBR7200 series universal broadband routers are available with a 16- or 20-MB Type II PCMCIA Flash memory card.


Table 3: Memory Recommendations for the Cisco uBR7200 Series Routers, Release 12.1(3a) EC 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

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 3 is as follows:

Note   For all Cisco IOS Release 12.1(3a) EC images, 64 MB of DRAM is recommended. 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 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 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 quality of service (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 STBs attached to the specific network segments. The chassis must be running Cisco IOS Release 12.1(2) EC1 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 the clock reference feature set automatically.

Hardware Supported

Cisco IOS Release 12.1(3a) EC 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(3a) EC:

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

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(3a) EC supports the following cable modem cards, all of which provide connection to the HFC network:

Table 4 provides a quick overview of the cable modem cards that are supported in Cisco IOS Release 12.1(3a) EC.


Table 4: Cisco uBR7200 Cable Modem Cards
Cable Modem Card Upstream Ports Downstream Ports Additional Features

MC11C

1

1

MC12C

2

1

MC14C

4

1

MC16C

6

1

MC16E

6

1

EuroDOCSIS (Annex A) Support

MC16S

6

1

Spectrum Management Support

MC28

8

2

Port Adapter Cards

Table 5 lists and describes the port adapters supported by Cisco uBR7200 series routers in Cisco IOS Release 12.1(3a) EC.

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.
Table 5: Cisco uBR7200 Series Port Adapter Releases
Product Number Cisco uBR7223 Cisco uBR7246 Cisco uBR7246 VXR
Ethernet

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

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

Not applicable

12.1(2) EC1

Not applicable

Gigabit Ethernet

PA-GE—1-port, full-duplex, IEEE 802.3z- compliant Gigabit Ethernet (GE) port adapter1

Not applicable

Not applicable

12.1(2) EC1

Serial

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

HSSI

PA-H—1-port HSSI port adapter

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1 2

PA-2H—2-port HSSI port adapter

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1 3

ATM

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

PA-A2-4E1XC-OC3SM—5-port ATM CES4 (4 E1 120-ohm CBR5 ports and 1 OC-3 ATM single-mode port) port adapter

Not applicable

12.1(2) EC1

Not applicable

PA-A2-4E1XC-E3ATM—5-port ATM CES4 (4 E1 120-ohm CBR5 ports and 1 E3 ATM port) port adapter

Not applicable

12.1(2) EC1

Not applicable

PA-A2-4T1C-OC3SM—5-port ATM CES4 (4 T1 CBR5 ports and 1 OC-3 ATM single-mode port) port adapter

Not applicable

12.1(2) EC1

Not applicable

PA-A2-4T1C-T3ATM—5-port ATM CES4 (4 T1 CBR5 ports and 1 T3 ATM port) port adapter

Not applicable

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

Not applicable

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

Packet-Over-SONET (POS)

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

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

12.1(2) EC1

12.1(2) EC1

12.1(2) EC1

Dynamic Packet Transport (DPT)

PA-SRP-OC12SML—2-port OC-12c (STM4c) single-mode fiber, long reach DPT port adapter

Not applicable

12.1(2) EC1

Not applicable

PA-SRP-OC12SMI—2-port OC-12c (STM4c) single-mode fiber, intermediate reach DPT port adapter

Not applicable

12.1(2) EC1

Not applicable

PA-SRP-OC12MM—2-port OC-12c (STM4c) multimode fiber DPT port adapter

Not applicable

12.1(2) EC1

Not applicable

1The 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 12.1(2) EC1.
2To 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.
3To 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.
4CES = circuit emulation services.
5CBR = 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 EC Software (ubr7200-is-mz), Version 12.1(3) EC, 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.

Table 6 lists the features and feature sets supported by the Cisco uBR7200 series in Cisco IOS Release 12.1(3a) EC and uses the following conventions:

Note   This feature set table only contains a selected list of features. This table is not cumulative nor does it list all the features in each image.


Table 6: 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

DHCP2 Server

Yes

Yes

Yes

Yes

Yes

Yes

Dynamic Mobile Hosts

Yes

Yes

Yes

Yes

Yes

Yes

DRP3 Server Agent

Yes

Yes

Yes

Yes

Yes

Yes

Enhanced Modem Status Display

Yes

Yes

Yes

Yes

Yes

Yes

Enhanced Per-Modem Error Counter

Yes

Yes

Yes

Yes

Yes

Yes

MC16S LED4 Enhancements

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 1+1 Redundancy

12.1(3a) EC

Yes

Yes

Yes

Yes

Yes

Yes

HSRP5 over ISL6 in Virtual LAN Configurations

No

No

Yes

Yes

Yes

Yes

IP Type of Service and Precedence for GRE7 Tunnels

Yes

Yes

Yes

Yes

Yes

Yes

IP Enhanced IGRP8 Route Authentication

Yes

Yes

Yes

Yes

Yes

Yes

Per-Modem Filters

Yes

Yes

Yes

Yes

Yes

Yes

Management

Cable Interface Setup Facility

12.1(3a) EC

Yes

Yes

Yes

Yes

Yes

Yes

Cable Monitor

12.1(3a) EC

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

DOCSIS Ethernet MIB Objects Support (RFC 2665)

Yes

Yes

Yes

Yes

Yes

Yes

DOCSIS OSSI Objects Support (RFC 2233)

Yes

Yes

Yes

Yes

Yes

Yes

Dynamic Ranging Support

Yes

Yes

Yes

Yes

Yes

Yes

Entity MIB, Phase 1

Yes

Yes

Yes

Yes

Yes

Yes

Interface Command Enhancements

Yes

Yes

Yes

Yes

Yes

Yes

Internal Modem Configuration File Editor

Yes

Yes

Yes

Yes

Yes

Yes

MIB Enhancements

Yes

Yes

Yes

Yes

Yes

Yes

Multicast MPI MIB

Yes

Yes

Yes

Yes

Yes

Yes

LinkUp/Down Traps Support (RFC 2233)

Yes

Yes

Yes

Yes

Yes

Yes

RF Interface MIB

Yes

Yes

Yes

Yes

Yes

Yes

SNMPv2C9 and SNMPv310

Yes

Yes

Yes

Yes

Yes

Yes

SNMP Cable Modem Remote Query

Yes

Yes

Yes

Yes

Yes

Yes

Multimedia

Bi-Directional PIM11

Yes

Yes

Yes

Yes

Yes

Yes

IP Multicast Load Splitting across Equal-Cost Paths

Yes

Yes

Yes

Yes

Yes

Yes

IP Multicast over ATM12 Point-to-Multipoint Virtual Circuits

Yes

Yes

Yes

Yes

Yes

Yes

IP Multicast over Token Ring LANs

Yes

Yes

Yes

Yes

Yes

Yes

Stub IP Multicast Routing

Yes

Yes

Yes

Yes

Yes

Yes

Quality of Service

Dynamic Upstream Modulation

12.1(3a) EC

Yes

Yes

Yes

Yes

Yes

Yes

DOCSIS 1.0+ 13QoS Enhancements

Yes

Yes

Yes

Yes

Yes

Yes

Downstream QoS Handling

Yes

Yes

Yes

Yes

Yes

Yes

Downstream Traffic Shaping

Yes

Yes

Yes

Yes

Yes

Yes

Dynamic SID support

Yes

Yes

Yes

Yes

Yes

Yes

Dynamic Map-Advance

Yes

Yes

Yes

Yes

Yes

Yes

Improved Upstream QoS

Yes

Yes

Yes

Yes

Yes

Yes

Multiple SID Support (static only)

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

RTP14 Header Compression

Yes

Yes

Yes

Yes

Yes

Yes

Upstream Address Verification

Yes

Yes

Yes

Yes

Yes

Yes

Upstream Traffic Shaping

Yes

Yes

Yes

Yes

Yes

Yes

Security

Automated Double Authentication

Yes

Yes

Yes

Yes

Yes

Yes

BPI Encryption

No

Yes

No

No

Yes

Yes

Cable Modem and Multicast Authentication using RADIUS15

No

Yes

No

No

Yes

Yes

Cisco IOS Firewall Enhancements

Yes

Yes

Yes

Yes

Yes

Yes

HTTP16 Security

Yes

Yes

Yes

Yes

Yes

Yes

Named Method Lists for AAA17 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 TACACS18+ Servers

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

Yes

Yes

Yes

Yes

Yes

Yes

WAN Optimization

PAD19 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

Yes

Yes

Yes

Yes

Yes

Yes

Frame Relay MIB Extensions

Yes

Yes

Yes

Yes

Yes

Yes

Frame Relay Router ForeSight

Yes

Yes

Yes

Yes

Yes

Yes

ISDN20 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 NFAS21

Yes

Yes

Yes

Yes

Yes

Yes

Microsoft Point-to-Point Compression (MPPC)

Yes

Yes

Yes

Yes

Yes

Yes

National ISDN Switch Types for BRI22 and PRI23

Yes

Yes

Yes

Yes

Yes

Yes

VPDN24 MIB and Syslog Facility

Yes

Yes

Yes

Yes

Yes

Yes

X.25 Enhancements

Yes

Yes

Yes

Yes

Yes

Yes

X.25 Switching between PVCs25 and SVCs26

Yes

Yes

Yes

Yes

Yes

Yes

1If no release is mentioned in this column, the feature was introduced in Cisco IOS Release 12.1(2) EC1, which was the base release.
2DHCP = Dynamic Host Configuration Protocol
3DRP = Director Response Protocol
4LED = light emitting diode
5HSRP = Hot-Standby Routing Protocol
6ISL = Inter-Switch Link
7GRE = generic routing encapsulation
8IGRP = Interior Gateway Routing Protocol
9SNMPv2 = Simple Network Management Protocol version 2
10SNMPv3 = Simple Network Management Protocol version 3
11PIM = Protocol Independent Multicast
12ATM = Asynchronous Transfer Mode
13The DOCSIS 1.0+ QoS Enhancements is a set of Cisco's Quality of Service extensions to DOCSIS 1.0 to enable basic VoIP service over the DOCSIS link before DOCSIS 1.1 becomes available.
The main enhancements include support for dynamic creation and teardown of flows during voice calls, support for one new slot scheduling mechanism (UGS) for voice slots, and per IP-precedence rate shaping on the downstream.
14RTP = Real-Time Transport Protocol
15RADIUS = Remote Access Dial-In User Service
16HTTP = Hypertext Transfer Protocol
17AAA =authentication, authorization, and accounting
18TACACS = Terminal Access Controller Access Control System
19PAD = packet assembler/disassembler
20ISDN = Integrated Services Digital Network
21NFAS = non-facility-associated signaling
22BRI = Basic Rate Interface
23PRI = Primary Rate Interface
24VPDN = virtual private dial-up network
25PVC = permanent virtual circuit
26SVC = switched virtual circuit

New and Changed Information

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

New Hardware Features in Release 12.1(3a) EC

The following new hardware features are supported by the Cisco uBR7200 series routers in Cisco IOS Release 12.1(3a) EC.

MC28 Cable Modem Card

The Cisco uBR-MC28C cable modem card contains two downstream modulators and eight upstream demodulators. The card supports all DOCSIS 1.0-specified Annex B Radio Frequency (RF) data rates, channel widths, and modulation schemes.

While the card contains a total of two downstream and eight upstream ports, upstream ports are fixed to a specific downstream. You cannot mix and match upstreams to downstreams. Instead, the card is configured to support a dual one-downstream-to-four-upstream port arrangement.

Note   For those familiar with current Cisco cable modem cards, you can think of the Cisco uBR-MC28C card as two Cisco uBR-MC14C cable modem cards in one. The Cisco uBR-MC28C card supports a pair of downstream - Quadrature Amplitude Modulation (QAM) 64 or QAM 256 - and four upstream - Quadrature Phase Shift Keying (QPSK) or QAM 16 - ports. Each port set is independent of the other and is configured in two independent CMTS MAC domains. Upstream and downstream ports are not shared across the two MAC domains. Instead, both domains operate independently of each other.

The Cisco uBR-MC28C is configured similar to all other C-based cable modem cards. Using the interface type slot/port command, configure the interface where:

  type = cable
slot = downstream number on card; 0 or 1
port = upstream port number associated with specific downstream; 0, 1, 2, or 3

Domain #1 Port Set: D0, U0, U1, U2, U3
Cable interface; CableX/0//UY where:

  0 represents the first downstream port
U represents the upstream port associated with the downstream; U is followed by the specific upstream port; 0, 1, 2 or 3

Domain #2 Port Set: D1, U0, U1, U2, U3
Cable interface; CableX/1//UY where:

  1 represents the second downstream port
U represents the upstream port associated with the downstream; U is followed by the specific upstream port; 0, 1, 2 or 3

New Hardware Features in Release 12.1(2) EC1

The following new hardware features are supported by the Cisco uBR7200 series routers in Cisco IOS Release 12.1(2) EC1.

PA-SRP-OC12SML, PA-SRP-OC12SMI, and PA-SRP-OC12MM Port Adapters

The OC-12c dynamic packet transport (DPT) port adapters are dual-width OC-12c port adapters that provide a shared IP over Synchronous Optical Network (SONET) capability. The DPT port adapter is available in three models: multimode fiber, single-mode fiber intermediate reach, and single-mode fiber long reach. These port adapters are newly supported in Cisco IOS Release 12.1(2) EC1.

The DPT port adapters provide the Cisco uBR7246 universal broadband router with two SC duplex ports. Each SC duplex port provides the physical connection to a device in a SONET OC-12 DPT ring. DPT rings can also be connected to SONET add-drop multiplexers (ADMs), thus allowing for the creation of small or very large DPT rings.

See the port adapter matrix (Cisco uBR7200 Series Port Adapter Releases on page 11) for information about port adapters supported on each chassis.

Other Port Adapters

The following port adapters are newly supported by Cisco IOS Release 12.1(2) EC1:

See the Table 5 on page 11 for information about port adapters supported on each chassis.

New Software Features in Release 12.1(3a) EC

The following new software features are supported by the Cisco uBR7200 series routers in Cisco IOS Release 12.1(3a) EC.

Cable Interface Setup Facility

The Cable Interface Setup Facility is an alternative mechanism to enable or configure Cisco uBR7200 series parameters. Using Cisco IOS Release 12.1(3a) EC, the setup facility is expanded to automate configuration of upstream parameters for all currently supported cable modem cards. This includes the newly introduced Cisco uBR-MC28C cable modem card.

In previous revisions, upstream ports were put in a default shut-down state after the setup facility was run. You had to use the CLI to configure a fixed frequency or create a spectrum group, assign an interface to it, and enable each upstream port on a cable modem card. The setup facility now supports configuring and enabling upstream parameters.

In the following example, the upstream parameters for a cable modem card in slot 5 are configured and enabled. Press Return to accept the default.

Do you want to configure Cable 5/0 interface? [no]: yes

Downstream setting frequency: 531000000

For cable upstream [0]

Shut down this upstream? [yes/no]: no

Frequency: 33808000

Would you like to configure the DHCP server? [yes/no]: yes

IP address for the DHCP server [X.X.X.X]: 10.0.0.2

Configure IP on this interface? [yes]:

IP address for this interface [10.20.133.65]:

Subnet mask for this interface [255.0.0.0]: 255.255.255.248

Class A network is 10.0.0.0, 29 subnet bits; mask is /29

In this example, the input above generates the following command interface script:

interface Cable 5/0

no shutdown

cable downstream frequency 531000000

no shutdown

cable downstream modulation 64qam

cable downstream annex B

cable downstream interleave-depth 32

no cable upstream 0 shutdown

cable upstream 0 frequency 33808000

cable helper-address 10.0.0.2

ip address 10.20.133.65 255.255.255.248
Note   Cable modems or set top boxes with integrated cable modems are brought on-line once the utility is run.
Note   For Dynamic Host Configuration Protocol (DHCP)/time of day (TOD)/Trivial File Transfer Protocol (TFTP), a static route must exist to the host.

Cable Monitor

The cable monitor feature allows administrators to filter a selection of MAC messages, map messages & data packets to access lists, mac-address and upstream port numbers, as well as enable time stamping of each packet and permit the option of stripping away the DOCSIS header for data packets. This makes it easier to resolve interoperability issues, to understand network issues that can affect application performance and functionality, and to increase the ability to manage network variables.

The configuration CLI consists of the following sniffer commands (enter configuration commands, one per line, and end with CNTL-Z):

Router(config-if)# cable monitor [outbound | incoming] [timestamp] interface <interface> {access-list <name | number> | sid <n> | mac-addr <address> | upstream <n> }[ packet-type { mac [type { map-req | map-grant | dsa | dsc | dsd ... } ] | data packet-header {ethernet | docsis } } ]

For more information on the command line interface (CLI) and for syntax descriptions, see the Broadband Cable and Fixed Wireless Command Reference Guide. The section "Platform-Specific Documents" on page 34 provides details on how to access this document, which will be available as of September 29.

Dynamic Upstream Modulation

Available for both MC1xC and MC16S cards for the Cisco uBR7200 series routers, the Dynamic Upstream Modulation feature reduces the risks associated with transitioning to QAM16 modulation in the return path, and provides assurance that subscribers remain on-line and connected during periods of return path impairments.

This new feature actively monitors the signal-to-noise-ratio (SNR) and forward error correction (FEC) counters in the active return path of each upstream port. The software tracks whether the current upstream channel signal quality can adequately support the higher modulation scheme configured, and proactively adjusts to the more robust QPSK modulation scheme when necessary. When return-path spectrum conditions improve, the software proactively returns the upstream channel to the higher-modulation QAM scheme. This is done through modulation profiles supported in Cisco IOS, which can be configured in a variety of ways to support the unique environment at each user's facility.

The Dynamic Upstream Modulation feature can be configured on interfaces with fixed upstream frequencies or on interfaces with spectrum groups assigned. Cisco IOS provides one pre configured modulation profile resident in memory, which defines a typical profile for QPSK modulation. In order to use the Dynamic Upstream Modulation feature, a second profile must be created that is unique from the first profile and typically provides a higher modulation scheme.

Whether the MC1xC modem cards or the enhanced MC16S spectrum management modem card are used, the following CLI is the only configuration required:
cable upstream <n> modulation-profile <primary profile-number> <secondary profile-number>.

Dynamic Upstream Modulation can be used along with spectrum groups. If a Cisco uBR-MC16S card is used and the Dynamic Upstream Modulation and spectrum groups are configured on the same interface, the modulation switchover is chosen as the first corrective action, followed by a frequency hop, and finally a reduction in channel width. The user can configure how the higher-modulation profile is selected by setting priorities with the following CLI:
cable upstream <n> <hop-priority frequency> <bandwidth> <modulation>
The order of the frequency, bandwidth, and modulation in the CLI determines the priority.

For more information on the Dynamic Upstream Module feature, including information on creating modulation profiles using the cable modulation-profile command, see the Cisco uBR7200 Dynamic Upstream Modulation feature module. For information on creating spectrum groups using the cable spectrum-group command, see the Broadband Cable and Fixed Wireless Command Reference Guide. The section "Platform-Specific Documents" on page 34 provides details on how to access this document, which will be available as of September 29.

Hot-Standby 1+1 Redundancy

The Hot-Standby 1+1 Redundancy feature offers the ability to provide high system availability when configuring a Cisco uBR7200 series universal broadband router to wait in hot-standby mode to protect another Cisco uBR7200 series router in case of system failure.

The 1+1 redundancy feature is essential in a residential Voice over IP (VoIP) cable network, since it

provides a three-to-five-second automatic system recovery time, thus helping to eliminate "call drops" in the VoIP cable network. System failure in a non-redundancy (unprotected) deployment results in loss of all voice calls in progress as well as all voice calls in "setup" phase because the CMTS requires human intervention to reconfigure and bring the CMTS back on line.

Configuration for 1+1 redundancy takes place at the cable modem card interface level. That is, rather than assigning an entire Cisco uBR7200 series router to support another Cisco uBR7200 series router, individual interfaces on one Cisco uBR7200 series router are configured to protect individual interfaces installed in a different Cisco uBR7200 series router.

Note   1+1 redundancy protection takes place on an inter-chassis basis, only. That is, you cannot protect cable interfaces on a particular CMTS with cable interfaces installed in the same chassis.

The user can configure the system to switch-over automatically when the interface state of a cable modem card interface moves from "up" to "down." Alternatively, the user can manually force a switch-over.

For more information on the 1+1 redundancy feature, including information on configuration tasks and command reference, see the Hot-Standby 1+1 Redundancy feature module.

MIB Enhancements

Cisco IOS Release 12.1(3a) EC provides the following MIB enhancements:

  For an MC16E cable modem card in ANNEX A mode, DOCS-IF-MIB is compliant with Euro-DOCSIS; for any other cable modem card (that is, any "non-E" cable modem card), DOCS-IF-MIB is compliant with DOCSIS.

Overlapping Subinterface IP Addresses

Multiprotocol Label Switching (MPLS)-based Virtual Private Networks (VPNs), which are created in Layer 3, provide privacy and security by constraining the distribution of a VPN's routes to those routers that are members of the VPN only, and by using MPLS forwarding. Each Internet service provider's (ISP's) VPN is insulated from all others sharing the HFC and IP-over-cable infrastructure. MPLS VPN enforces traffic separation by assigning a unique VPN Routing/Forwarding (VRF) instance to each VPN. A VRF instance consists of an IP routing table, a derived forwarding table, a set of interfaces that use the forwarding table, and a set of rules and routing protocols that determine what is in the forwarding table.

Cisco IOS Release 12.1(2) EC1 and earlier releases assumed that IP addresses were unique, while it is possible with an MPLS VPN to configure overlapped IP addresses within a VRF. A configuration of overlapped IP addresses could have caused errors. Cisco IOS Release 12.1(3) EC supports a configuration of overlapping IP addresses for subinterfaces. The same IP subnet can now be configured for CPE on different VRFs using a Cisco uBR7200 to configure a MPLS VPN. See also the section "MPLS VPN Support for Subinterfaces and Interface Bundles" on page 26.

The following CLI commands have been updated in Cisco IOS Release 12.1(3a) EC to support overlapping IP addresses on subinterfaces:

New Software Features in Release 12.1(2) EC1

The following new software features are supported by the Cisco uBR7200 series routers in Cisco IOS Release 12.1(2) EC1.

Configurable Alternate Termination System Information Messages

The registration IP address that is included in Termination System Information messages is now configurable for telco return. Previously, the downstream channel IP address of the uBR7200 was used as the registration IP address. With the cable telco-return registration-ip command, the user can configure an alternate IP address to which the cable telco-return modem can send its registration requests.

DOCSIS Ethernet MIB Objects Support (RFC 2665)

Support for RFC 2665, the latest revision of the Ethernet MIB, is now mandatory for DOCSIS compliance.

The key changes are as follows:

DOCSIS OSSI Objects Support (RFC 2233)

Cisco uBR7200 series routers now support the required objects in RFC 2233 for DOCSIS OSSI compliance.

Dynamic Map-Advance

The Dynamic Map-Advance feature improves the upstream throughput for a cable modem. This feature enables the map-advance to be dynamic and self-adjusting to propagation delay, even for the furthest cable modem in the plant.

Dynamic Mobile Hosts

This feature addresses a security hole that occurs when the Cisco uBR7200 router supports mobile hosts. (Mobile host are hosts that can move from one modem to another modem). Anyone who knows the MAC address of a mobile host can "fake" the mobile host, thereby causing denial of access for the real mobile host.

To avoid this security hole, the Dynamic Mobile Hosts feature pings the mobile host on the old SID to verify that the host has indeed been moved.

Dynamic Ranging Support

The functionality of the clear cable modem <mac-address> reset command is extended to send a "Ranging Abort" message instead of just removing the SID.

A new modem state—Reset (display: resetting)— has been introduced into the modem state list. A modem is deprovisioned when moving into this state as if going off line. Move the modem to the Continue Ranging list. If a ranging request is received from the modem, send a "Ranging Abort" message. Continue until an "Initial Ranging" message is received or until normal timeout (16 attempts). If the modem does not go back to initial ranging, set it to offline.

The Reset modem state may show as follows in the output of show cable modem:

Cable4/0/U1 80 resetting 3575 0.25 3 0 10.30.160.26 0050.7318.e965

This is an intermediate state. A modem will not be in this state for more than a few seconds; if the modem does not respond, it may be in this state for up to 30 seconds. The subsequent modem state is off line.

Enhanced Per-Modem Error Counter

The Cisco uBR7200 series supports display of per modem error counters. A 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 the Cyclic Redundancy Check (CRC) and Header Check Sum (HCS) are on a per CM basis.




 Internal Modem Configuration File Editor


 This feature will add support for internal cable modem configuration file storage and generation. The cable modem configuration file will be generated and stored as part of CLI configuration. Configuration files will not be stored in Flash memory.


 `max-cpe' CLI Override


 A new cable-specific configuration command has been added: 


 [no] cable modem max-cpe [<n> | unlimited ]


 When set to unlimited or n is larger than the max-cpe value in the config file of a cable modem, it overrides the config file value. 


 MPLS VPN Support for Subinterfaces and Interface Bundles


 Cisco  IOS Release 12.1(2) EC1 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 Internet service providers (ISPs) requires subinterfaces to be configured on cable interfaces or bundles. One subinterface is required for each ISP. The subinterfaces are tied to VPN Routing Forwarding (VRF) tables for respective ISPs. 


 For more feature information, refer to Cisco uBR7200 Series MPLS VPN Cable Enhancements, feature module.







Note   Cisco IOS Release 12.1(2) EC1 does not support overlapping IP addresses for subinterfaces. If the same IP subnet is configured for customer premises equipment (CPE) on different VFRs using a Cisco uBR7200 to configure an MPLS-VPN, the user receives a "OVERLAP IP error" message. The CPE devices are not able to send data.

Cisco IOS Release 12.1(3)EC supports overlapping IP addresses for subinterfaces. See the section "Overlapping Subinterface IP Addresses" on page 23.









Note   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.




 Multicast BPI MIB Support


 Because a multicast SID on CMTS will not be determined until the CMTS receives an Internet Group Management Protocol (IGMP) join request from a host, some limitations apply to "docsBpiIpMulticastServiceId" and "docsBpiMulticastServiceId": 



 Link Up/Down Traps Support (RFC 2233)


 The objects in the varbind list, based on Internet Engineering Task Force (IETF) standard, are defined in IF-MIB. Since IF-MIB supports sub interfaces, all objects in this varbind list are also supported for sub interfaces. The feature allows the user to base the Link Up/Down trap varbind list on a Cisco-specific or IETF standard with a new CLI configuration command:


 snmp-server link-trap [cisco | ietf]


 The default is a Cisco-specific link trap (snmp-server link-trap cisco). The user can switch between Cisco and IETF standard.


 SNMP Cable Modem Remote Query


 This feature provides a new MIB, CISCO-DOCS-REMOTE-QUERY-MIB, which, once implemented on a CMTS, facilitates SNMP polling of remote CMs. This MIB includes the configuration of the CMTS CM Poller, as well as status objects of remote CMs that are polled by the CMTS CM Poller.


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


 snmp-server enable cable cm-remote-quer


 SNMP Objects for Clear Host, Clear Cable Modem, and Show Current CPEs


 Host or cable modems can be cleared via the "cdxCmCpeResetNow" MIB object. The number of current CPEs can be displayed via the "cdxCmtsCmCurrCpeNumber" MIB object.


 Important Notes

 
 The following sections contain important notes about Cisco IOS Release 12.1(3a) EC that apply to Cisco uBR7200 series universal broadband routers.


 Deferral Notice for Cisco IOS Release 12.1(2) EC


 The following defect had caused all images in the Cisco IOS Release 12.1(2) EC to be removed from CCO and to be deferred:


 CSCdr94704: Cisco IOS Release 12.1(2) EC does not recognize the port adapters PA-SRP-OC12SMI, PA-SRP-OC12SML, and PA-SRP-OC12MM in the Cisco uBR7246 router.


 Cisco IOS Release 12.1(2) EC was replaced with Release 12.1(2) EC1.


 Supported MIBs


 The Cisco uBR7200 series universal broadband routers support the following categories of MIBs:



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


 Cable-Specific MIBs


 Table 7 shows the cable-specific 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 7 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 7: Cable-Specific MIBs Supported on Cisco uBR7200 Series Routers




MIB Filename
Description
Introduced in Release



 SNMPv2-SMI.my 


 SNMPv2-SMI-V1SMI.my 


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


 12.1(2)  EC




 SNMPv2-TC.my 


 SNMPv2-TC-V1SMI.my 


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


 12.1(2)  EC




 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.


 12.1(2)  EC




 CISCO-SMI.my 


 CISCO-SMI-V1SMI.my 


 This module specifies the SMI for Cisco's enterprise MIBs.


 12.1(2)  EC




 CISCO-TC.my 


 CISCO-TC-V1SMI.my 


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


 12.1(2)  EC




 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 incorporates the extensions defined in RFC 2233.


 12.1(2)  EC




 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(2)  EC




 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.


 12.1(2)  EC




 CISCO-DOCS-EXT-MIB.my 


 CISCO-DOCS-EXT-MIB-V1 SMI.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.


 12.1(2)  EC




 CISCO-DOCS-REMOTE-QUERY-MIB


 This module facilitates SNMP polling of remote CMs on a CMTS.


 12.1(2)  EC




 CISCO-CABLE-SPECTRU M-MIB.my


 CISCO-CABLE-SPECTRU M-MIB-V1SMI.my


 This module describes the spectrum management flap list attributes.


 12.1(2)  EC














 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 Network Management System (NMS) applications. You can update from deprecated MIBs to the replacement MIBs as shown in Table 8.


  

Table 8: 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 in Table 8 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 then go to Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB.




 Caveats

 
 Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious.


 All caveats in Cisco IOS Release 12.1(1) are also in Cisco IOS Release 12.1(3a) EC.


 For information on caveats in Cisco IOS Release 12.1, see Caveats for  Cisco  IOS Release  12.1 .  This document 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(3a) EC


 This section describes possibly unexpected behavior for Cisco IOS Release 12.1(3a) EC.



  A Cisco uBR7246 VXR with an NPE-300 Revision B and more than one MC28C cable modem card reloads during bootup due to a watchdog timeout. There is no workaround.




 Closed and Resolved Caveats for Release 12.1(3a) EC


 All the caveats listed in this section are closed or resolved in Cisco IOS Release 12.1(3a) EC. This section includes severity 1 and 2 caveats. All caveats closed in previous releases are also closed or resolved in Release 12.1(3a) EC.



  When spectrum management is enabled on an upstream port and the upstream frequency changes due to the Dynamic Upstream Modulation feature or otherwise, the MAC scheduler/MAC-PHY chip on the CMTS resets. This unnecessary reset might cause jitter spikes for constant bit rate (CBR) voice slots.


  The VoIP packets at the cable modem that would have traveled in these slots get dropped at the cable modem. This results in a momentary drop of the voice quality. There is no workaround.


  This is resolved in Cisco IOS Release 12.1(3a) EC.





  The CM has to perform BPI reauthorization after an Upstream Channel Change (UCC) message; otherwise, upon a key request, the CMTS will send a traffic encryption keys (TEK) reject message to the CM. There is no workaround.


  This is resolved in Cisco IOS Release 12.1(3a) EC.





  Cable modems do not come on line when different modulation profiles are used for different upstreams on the same cable line card. There are two workarounds:


  Workaround 1: Use the same modulation profile for all upstreams, even those in the "admin down" state.


  Workaround 2: Use the cable upstream X shut and no cable upstream X shut commands to reset individual upstreams one at a time. Using the shutdown and no shutdown commands at interface level does not work.


  This is resolved in Cisco IOS Release 12.1(3a) EC.





  A Cisco uBR7200 series router does not allow "ip" as a match criteria when a route-map is configured, due to CLI inconsistencies caused by the "ifIndex" persistence feature.


  This is resolved in Cisco IOS Release 12.1(3a) EC, while "ifIndex" will not be persistent after an online insertion and removal (OIR).





  The configuration of the primary IP address on the first subinterface on a cable modem is treated as the user's intent to move cable modems to subinterfaces, but the cable modems do not learn the IP address. There is no workaround.


  This is resolved in Cisco IOS Release 12.1(3a) EC: After the configuration of the primary IP address on the first subinterface on a cable modem, all the underlying physical cable interfaces are reset so that cable modems can come up on newly defined subinterfaces.




 Open Caveats for Release 12.1(2) EC1


 Cisco IOS Release 12.1(2) EC1 includes bug fixes to Release 12.1(2) EC. Those caveats from Release 12.1(2) EC that are not closed or resolved in Release 12.1(2) EC1 are still open. Refer to the "Open Caveats for (Deferred) Release 12.1(2) EC" section on page 33 for details on those caveats not closed or resolved in Release 12.1(2) EC.


 Closed and Resolved Caveats for Release 12.1(2) EC1


 All the caveats listed in this section are closed or resolved in Cisco IOS Release 12.1(2) EC1. This section includes severity 1 and 2 caveats. All caveats closed or resolved in Release 12.1(2) EC are also closed or resolved in Release 12.1(2) EC1.



  In Cisco IOS Release 12.1(2) EC, the port adapters PA-SRP-OC12SMI, PA-SRP-OC12SML, and PA-SRP-OC12MM are not recognized and therefore not supported. There is no workaround.


  This is resolved in Cisco IOS Release 12.1(2) EC1.


  This caveat led to the deferral of the Cisco IOS Release 12.1(2) EC images.





  When a user advances the system clock (using the clock set EXEC command) on a Cisco uBR720 series router to pass the BPI key expiration period, the system expects the cable modem (CM) to renew BPI keys. Since the CM does not know about the system time change, it does not renew its BPI keys.


  As a result, the CM stays in an online (pk) or reject (pk) state until it renews its BPI keys. The CM cannot pass traffic in these states.


  The time stamp is used as an index to BPI key tables. The granularity of the time stamp is 4-msecs. If two or more CMs obtain or renew their BPI keys within the same 4-msecs interval, only the first BPI key information will be kept. The CM stays in the online (pk) or reject (pk) state until it renews its BPI key.


  Workaround: Set the system clock before enabling the cable interface.


  This is resolved in Cisco IOS Release 12.1(2) EC1.




 Open Caveats for (Deferred) Release 12.1(2) EC


 This section describes possibly unexpected behavior for Cisco IOS Release 12.1(2) EC.



  Current show cable modem remote command does not support SNMPv1. This command will not work for modems supporting SNMPv1.




 Closed and Resolved Caveats for (Deferred) Release 12.1(2) EC


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



  The remotely queried values were not displayed for cable modems with privacy enabled. Workaround was to disable privacy.


  This is resolved in Cisco IOS Release 12.1(2) EC.





  The show diag command output displayed format errors.


  This is resolved in Cisco IOS Release 12.1(2) EC.





  System would not set a "Link Up" or "Link Down" SNMP trap for a downstream or upstream port.


  This is resolved in Cisco IOS Release 12.1(2) EC.


  A trap can be configured to be set when the link fails.





  Clock card diagnosis information should not be displayed for every show diag slot # output.


  This is resolved in Cisco IOS Release 12.1(2) EC.





  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 might not boot correctly from flash after a power cycle. This is a timing issue. Port adapter hardware lacked sufficient time to stabilize after a reset, while the driver code started. 


  This is resolved in Cisco IOS Release 12.1(2) EC.


  To ensure that the router boots correctly with all supported port adapters, current software increases the reset delay from 400-ms to 600-ms to negate this timing issue.




 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:



  Technical Documents





  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









Note   If you have an account with CCO, you can use Bug Navigator Toolkit to find caveats of any severity for any release. You can reach Bug Navigator on CCO at Software Center: Tools: Software Bug Toolkit: Bug Navigator II or at http://www.cisco.com/support/bugtools.
  



 Platform-Specific Documents


 The following 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







Note   The Broadband Cable and Fixed Wireless Command Reference Guide will be available on CCO as of September 29 through the following path:
Technical Documents: Documentation Home Page: Broadband/Cable Solutions




 On the Documentation CD-ROM:


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







Note   The Broadband Cable and Fixed Wireless Command Reference Guide will be available on the Documentation CD-ROM through the following path:
Cisco Product Documentation: Broadband/Cable Solutions









Tips Information about features of the uBR7200 series universal broadband router, as well as software release notes, are available on CCO at:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_r_sw/index.htm
  





 Feature Modules


 Feature modules describe new software enhancements, committed as features, supported by Cisco IOS Release 12.1(2) EC1 and are updates to the Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, and 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, and Cisco IOS software functionality, and contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide with its corresponding command reference.


 On 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 9 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 9: 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 
    



 Transparent Bridging
Source-Route Bridging
Token Ring Inter-Switch Link
Remote Source-Route Bridging
DLSw+
Serial Tunnel and Block Serial Tunnel Commands
LLC2 and SDLC Commands
IBM Network Media Translation Commands 
SNA Frame Relay Access Support Commands 
NCIA Client/Server Commands 
Airline Product Set Commands 




  • 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 
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 Overview 
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 
    



 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 
Configuring Passwords and Privileges 
Neighbor Router Authentication
Configuring IP Security Options 




  • 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 
    



 Introduction: 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.  Translated documentation can be accessed at http://www.cisco.com/public/countries_languages.shtml.
  

 Documentation CD-ROM


 Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly. 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 TAC 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: Tue Sep 26 14:53:29 PDT 2000

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