Text Part Number: 78-6482-04 Release Notes for Cisco uBR904 Cable Access Router for Cisco IOS Release 12.0(7)T December 13, 1999 These release notes for the Cisco uBR904 cable access router support Cisco IOS Release 12.0 T, up to and including Release 12.0(2)XC, 12.0(3)T, 12.0(4)T, 12.0(5)T, 12.0(7)T, or higher interim images.
Introduction Introduction The Cisco uBR904 cable access router gives residential or small office/home office (SOHO) subscribers, high-speed Internet or Intranet access via a shared two-way cable system and IP backbone network. The router connects computers and other customer premises devices at a subscriber site to the service provider’s hybrid/fiber coax (HFC) and IP backbone network.
Headend Interoperability Table 1 Memory Requirements for the Cisco uBR904 Cable Access Router (continued) Image Name Required Flash Memory Required DRAM Memory Runs From Feature Status Home Office ubr900-k1y5-mz 4 MB Flash 8 MB DRAM RAM Added in Release 12.0(3)T Telecommuter/IPSec 56 ubr900-k1sy556i-mz 4 MB Flash 8 MB DRAM RAM Encryption image added in Release 12.0(3)T Small Office/FW ubr900-k1oy5-mz 4 MB Flash 8 MB DRAM RAM Added in Release 12.
System Requirements Determining the Software Version To determine the version of Cisco IOS software running on your Cisco uBR904 cable access router, log in to the Cisco uBR904 cable access router and enter the show version EXEC command: router>show version Cisco Internetwork Operating System Software IOS (tm) 904 Software (UBR900-k1y5-mz), Version 12.
New and Changed Information 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.
New and Changed Information as the peer’s IP address). The dynamic crypto map allows you to accept requests for new security associations from previously unknown peers. These requests, however, are not processed until the ISAKMP (IKE) authentication has completed successfully. When the firewall receives a negotiation request via IKE from another IPSec peer, the request is examined to see if it matches a crypto map entry.
No New Software Features In Release 12.0(4)T No New Software Features In Release 12.0(4)T There are no new software features supported by the Cisco uBR904 cable access router in Cisco IOS Release 12.0(4)T. No New Hardware Features In Release 12.0(3)T There are no new hardware features supported by the Cisco uBR904 cable access router in Cisco IOS Release 12.0(3)T. New Software Features In Release 12.
New and Changed Information • • • • • CISCO-SYSLOG-MIB CISCO-FLASH-MIB BRIDGE-MIB IF-MIB CiscoWorks/CiscoView 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 the Cisco Network Management Toolkit on Cisco Connection Online (CCO).
New Software Features In Release 12.
New and Changed Information Traditional dial-up networking services only supported registered IP addresses, which limited the types of applications that could be implemented over VPNs. L2TP supports multiple protocols and unregistered and privately administered IP addresses over the Internet. This allows the existing access infrastructure, such as the Internet, modems, access servers, and ISDN terminal adapters (TAs), to be used.
Limitations and Restrictions Limitations and Restrictions This section describes warnings and cautions about using Cisco IOS Release 12.0 T software. Using Multiple PCs with a Cisco uBR904 Cable Access Router The MAX CPE parameter in a Cisco uBR904 cable access router’s DOCSIS configuration file determines how many PCs (or other CPE devices) are supported by that Cisco uBR904 cable access router.
Important Notes Caution After you connect a laptop PC to the Cisco uBR904 cable access router console port and save configuration changes (provided your network supports remote configuration) power cycle the Cisco uBR904 cable access router if you’re not using the laptop at the subscriber site. This is important when the Cisco uBR904 cable access router is configured to operate in a DOCSIS-compliant bridging mode.
Supplemental and Corrected Text for the Cisco uBR904 Cable Access Router The correction should read: “For the Cisco uBR904 cable access router, both the IRC (Incrementally Related Carrier) and HRC (Harmonically Related Carrier) plans are supported. Most of the IRC channel slots overlap the EIA plan. For the Cisco uBR904 cable access router, both the IRC and HRC plans are supported. The list of downstream search bands added for HRC have appropriate center frequencies and step values for an HRC channel plan.
Important Notes Table 3 Cisco uBR904 Cable Access Router Data Specifications (continued) Description Downstream Values Upstream Values Signal-to-Noise Ratio (SNR) 64 QAM: >23.5 dB @ BER<10^8 QPSK: >15 dB @ BER<10^-8 (QPSK will work at 98% successful ping rate for SNR>13 dB. An SNR of 15 dB is needed to get almost optimal packets per minute transition.) 256 QAM*: >30 dB @ BER <10^-8 (For input level between +15 and -8 dBmV, SNR must be greater than 30 dB.
Supplemental and Corrected Text for the Cisco uBR904 Cable Access Router This service class assigns a primary SID for the unit. In addition to being used as a data SID, the router uses this SID for all MAC message exchanges with the CMTS. Any SNMP management traffic from the network to the Cisco uBR904 cable access router also uses this SID. While this class is strictly “best effort,” you can prioritize data traffic within this class into eight different priority levels.
Important Notes Table 4 Configuring Operating Modes for the Cisco uBR904 Cable Access Router (continued) Step Command Purpose 6 uBR904(config-if)#Ctrl-z Return to the privileged EXEC mode. uBR904#copy running-config startup-config Building configuration... Save the configuration to nonvolatile RAM, so that it will not be lost in the event of a reset, power cycle, or power outage.
Downloading Specific Cisco IOS Images Note An easy way to do this on UNIX is to make sure the “ios.cfg” file is in /tftpboot; then enter the following command: chmod 777 ios.cfg Step 4 Start an Internet browser, such as NetScape 4.08, and create a generic DOCSIS configuration file by using the Cisco configuration file editor of your choice. Cisco provides a number of tools to help automate this process. Step 5 Follow the instructions provided in the specific Cisco tool.
Important Notes This prints out the man page. You can find the ASCII-to-decimal conversion chart needed.
Supported MIBs (h) Use a Cisco tool such as CNR to go into your DHCP server and change the value for “packet-file-name” to the new filename you just created: “gold-ios-config.cm.” (i) After you have reloaded the CNR DHCP server or the tool you are using, enter the following command from the CMTS: clear cable modem x.x.x.x reset The Cisco uBR904 cable access router reregisters with the CMTS. When it gets the new DOCSIS configuration file—“gold-ios-config.cm”—it sends the file “ios.cf” to itself via TFTP.
Important Notes • Cable-specific MIBs—These MIBs provide information about the cable interface and related information on the Cisco uBR904 cable access router. They include both DOCSIS-required MIBs and Cisco-specific enterprise MIBs. If your network management applications have not already been configured for the Cisco uBR904 cable access router, these MIBs must be loaded.
Supported MIBs Table 5 Supported MIBs for the Cisco uBR904 Cable Access Router (continued) MIB Filename CISCO-DOCS-EXT-MIB.my CISCO-DOCS-EXT-MIB-V1SMI.my Description Release 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. partial support: 12.0(4)XI full support: 12.0(5)T1 Note Cisco IOS releases prior to 12.
Caveats Table 6 Replacements for Deprecated MIBs (continued) Replacement MIBs Deprecated MIB SNMPv1 MIB SNMPv2 MIB OLD-CISCO-TCP-MIB CISCO-TCP-MIB-V1SMI CISCO-TCP-MIB CISCO-VINES-MIB-V1SMI CISCO-VINES-MIB OLD-CISCO-TS-MIB OLD-CISCO-VINES-MIB OLD-CISCO-XNS-MIB Note Some of the MIBs listed in Table 6 represent feature sets that are not supported on the Cisco uBR904 cable access router. Caveats Caveats describe unexpected behavior in Cisco IOS software releases.
Release-Specific 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, page 23 Platform-Specific Documents, page 24 Feature Modules, page 24 Cisco IOS Software Documentation Set, page 24 Release-Specific Documents The following documents are specific to Release 12.
Related Documentation Platform-Specific Documents These documents are available for the Cisco uBR904 cable access router on CCO and the Documentation CD-ROM: • • • • • • Cisco uBR904 Cable Access Router Installation and Configuration Guide Update to the uBR904 Cable Access Router Installation and Configuration Guide Bridging and Routing Features for the Cisco uBR904 Cable Access Router Regulatory Compliance and Safety Information for the Cisco uBR904 Troubleshooting Tips for the Cisco uBR904 Cable Access
Cisco IOS Software Documentation Set On CCO at: Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Configuration Guides and Command References On the Documentation CD-ROM at: Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.0: Configuration Guides and Command References Release 12.0 Documentation Set Table 7 describes the contents of the Cisco IOS Release 12.
Related Documentation Table 7 Cisco IOS Software Release 12.0 Documentation Set (continued) Books Chapter Topics • Dial Solutions Configuration Guide X.
Service and Support Table 7 Cisco IOS Software Release 12.
Cisco Connection Online Software Configuration Tips on the Cisco Technical Assistance Center Home Page If you have a CCO login account, you can access the following URL, which contains links and tips on configuring your Cisco products: http://www.cisco.com/kobayashi/serv_tips.shtml This URL is subject to change without notice. If it changes, point your Web browser to CCO and click on this path: Products & Technologies: Products: Technical Tips.
Documentation CD-ROM You can reach CCO in the following ways: • • • • • WWW: http://www.cisco.com WWW: http://www-europe.cisco.com WWW: http://www-china.cisco.com Telnet: cco.cisco.com Modem: From North America, 408 526-8070; from Europe, 33 1 64 46 40 82. Use the following terminal settings: VT100 emulation; databits: 8; parity: none; stop bits: 1; and connection rates up to 28.8 kbps. For a copy of CCO’s Frequently Asked Questions (FAQ), contact cco-help@cisco.com.
Documentation CD-ROM This document is to be used in conjunction with the documents listed in the “Related Documentation” section on page 22.
