Release Notes for Cisco uBR7200 Series for Cisco IOS Release 12.1 T November 27, 2000 Note You can find the most current Cisco IOS documentation on Cisco Connection Online (CCO). These electronic documents may contain updates and modifications made after the hardcopy documents were printed. These release notes for the Cisco uBR7200 Series Universal Broadband Routers describe the enhancements provided in Cisco IOS Release 12.1(5)T. These release notes are updated as needed.
Introduction Introduction The Cisco uBR7200 Series Universal Broadband Routers—the Cisco uBR7223, the Cisco uBR7246, and the Cisco uBR7246 VXR—are based on the Data Over Cable Service Interface Specification (DOCSIS) standards. Each is designed to be installed at a service provider’s headend facility. 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.
Introduction 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.
Introduction Table 1 Note Cisco uBR7200 Series Universal Broadband Routers Overview Hardware Supported Cisco uBR7246 VXR Cisco uBR7246 Cisco uBR7223 Removable Power Supplies up to 2 up to 2 1 PCMCIA Slots 2 2 2 Earlier release notes stated that the NPE-175 was also supported on the Cisco uBR7200 series routers. Because the NPE-175 has reached its end of life and was never made orderable on the Cisco uBR7200 series routers, it has been removed from the table.
Introduction Table 2 Early Deployment Releases for the CiscouBR7200Series Universal Broadband Routers ED Release Release 12.1(3)T Release 12.1(2)T Release 12.
System Requirements System Requirements This section describes the system requirements for Release 12.
System Requirements System Interoperability This section clarifies the operation of certain features in the Cisco uBR7200 Series Universal Broadband Routers: • 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 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.
System Requirements – CM-initiated dynamic MAC messages: Dynamic Service Addition (DSA) and Dynamic Service Deletion (DSD). These messages allow dynamic SIDs to be created and deleted at run-time on a per-VoIP call basis. – Unsolicited grant service (constant bit-rate scheduling) on the upstream: This helps provide a higher-quality channel for upstream VoIP packets from an Integrated Telephony Cable Modem (ITCM) such as the Cisco uBR924 Cable Access Router.
System Requirements Network Processing Engines The Cisco uBR7223 and the Cisco uBR7246 support the following Network Processing Engines (NPEs) in Cisco IOS Release 12.1(5)T: • NPE-150 • NPE-200 • NPE-225 The Cisco uBR7246 VXR supports the following NPEs in Cisco IOS Release 12.1(5)T: NPE-225 NPE-300 Note The NPE-300 is not supported on the Cisco uBR7223 and the Cisco uBR7246. The NPE-150 and NPE-200 are not supported on the Cisco uBR7246 VXR. Cable Modem Cards Cisco IOS Release 12.
System Requirements • MC16S spectrum management cable modem cards offer the following ports: – six upstream ports, with dedicated hardware support for enhanced hardware-based spectrum management – one downstream port Table 4 provides a quick overview of the cable modem cards that are supported in Cisco IOS Release 12.1(5)T.
System Requirements Table 5 Cisco uBR7200 Series Universal Broadband Routers Port Adapter Releases (continued) Cisco uBR72461 Cisco uBR7246 VXR1 PA-FE-FX—1-port 100BaseFX Fast Ethernet port adapter 12.0(5)T1 12.0(5)T1 12.0(7)T PA-2FEISL-TX—2-port 100BaseTX Fast Ethernet port adapter with Inter-Switch Link (ISL) support 12.0(5)T1 12.0(5)T1 12.0(7)T PA-2FEISL-FX—2-port 100BaseFX Fast Ethernet port adapter with Inter-Switch Link (ISL) support 12.0(5)T1 12.0(5)T1 12.
System Requirements Table 5 Cisco uBR7200 Series Universal Broadband Routers Port Adapter Releases (continued) Product Number Cisco uBR72231 Cisco uBR72461 Cisco uBR7246 VXR1 PA-2H—2-port HSSI port adapter 12.0(5)T1 12.0(5)T1 12.0(7)T6 12.0(5)T1 12.0(5)T1 Not applicable PA-A1-OC3MM—1-port ATM OC-3c/STM-1 multimode 12.0(5)T1 port adapter 12.0(5)T1 Not applicable PA-A2-4E1XC-OC3SM—5-port ATM CES7 (4 E1 Not applicable 120-ohm CBR8 ports and 1 OC-3 ATM single-mode port) port adapter 12.
System Requirements Determining Your Software Release To determine the version of Cisco IOS software running on the Cisco uBR7200 Series Universal Broadband Router, log in to the router and enter the show version EXEC command: router> show version Cisco Internetwork Operating System Software IOS (tm) 12.1 T Software (ubr7200-is-mz), Version 12.
System Requirements Table 6 Feature List by Feature Sets for Cisco uBR7200 Series Universal Broadband Routers (continued) Feature Set DOCSIS Two-way, IP Plus with BPI DOCSIS Two-way, IP Plus, Telco Return with BPI DOCSIS Two-way DOCSIS Two-way with BPI DOCSIS Two-way, IP Plus DOCSIS Two-way, IP Plus, Telco Return DRP2 Server Agent Yes Yes Yes Yes Yes Yes Telco Return No No No Yes No Yes Time of Day (ToD) Server Yes Yes Yes Yes Yes Yes Easy IP (Phase 1) Yes Yes Yes Yes Yes
System Requirements Table 6 Feature List by Feature Sets for Cisco uBR7200 Series Universal Broadband Routers (continued) Feature Set 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 Feature In1 DOCSIS Two-way DOCSIS Two-way with BPI Interface Index Persistence (5) Yes Yes Yes Yes Yes Yes Interface Range Specification (5) Yes Yes Yes Yes Yes Yes Individual SNMP Trap Support (3) Yes Yes
System Requirements Table 6 Feature List by Feature Sets for Cisco uBR7200 Series Universal Broadband Routers (continued) Feature Set DOCSIS Two-way, IP Plus with BPI DOCSIS Two-way, IP Plus, Telco Return with BPI DOCSIS Two-way DOCSIS Two-way with BPI DOCSIS Two-way, IP Plus DOCSIS Two-way, IP Plus, Telco Return Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Improved Upstream QoS Yes Yes Yes Yes Yes Yes QoS Configuration Yes Yes Yes Yes Yes Yes QoS Profile Enforcement
System Requirements Table 6 Feature List by Feature Sets for Cisco uBR7200 Series Universal Broadband Routers (continued) Feature Set 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 In1 DOCSIS Two-way DOCSIS Two-way with BPI MPLS VPN Support for Subinterfaces and Interface Bundles (2)14 Yes Yes Yes Yes Yes Yes Cable Subinterfaces and Interface Bundling Support for Virtual Private Networks (1) Y
New and Changed Information 6. RF = radio frequency 7. SNMPv2 = Simple Network Management Protocol version 2 8. SNMPv3 = Simple Network Management Protocol version 3 9. ATM = Asynchronous Transfer Mode 10. The DOCSIS 1.0+ QoS Enhancements is a set of Cisco's Quality of Service extensions to DOCSIS 1.0 to enable basic VoIP service over the DOCSIS link before DOCSIS 1.1 becomes available.
New and Changed Information AutoInstall Using DHCP for LAN Interfaces feature also allows the routing device to recognize IP address allocation messages coming from regular BOOTP servers, providing a seamless transition for those devices already using BOOTP servers for AutoInstall. Additionally, this feature allows for the uploading of configuration files using unicast Trivial File Transfer Protocol (TFTP). For further details, see the following document on CCO: http://www.cisco.
New and Changed Information Although there is no requirement in the relevant Request for Comments (RFCs) that the correspondence between particular ifIndex values and their interfaces be maintained across reboots, applications such as device inventory, billing, and fault detection increasingly depend on the maintenance of this correspondence. Cisco IOS Release 12.
New and Changed Information objects, including an NTP server peers table and an NTP server filter register table. For complete details on the Cisco implementation of the NTP MIB, see the MIB file itself at ftp://ftp.cisco.com/pub/mibs/v2/CISCO-NTP-MIB.my. Parser Cache The Parser Cache feature optimizes the parsing (translation) of Cisco IOS software configuration command lines by remembering how to parse recently encountered command lines.
New and Changed Information New Software Features in Release 12.1(3)T The following new software features are supported by the Cisco uBR7200 Series Universal Broadband Routers in Cisco IOS Release 12.1(3)T. Circuit Interface Identification MIB The Circuit Interface Identification MIB feature adds support for a new Cisco enterprise MIB, used to assist in SNMP monitoring of circuit-based interfaces.
New and Changed Information For a complete description of Expression MIB functionality, see the "Distributed Management Expression MIB" Internet-Draft document, available through the ITEF at http://www.ietf.org/ids.by.wg/disman.html. Individual SNMP Trap Support The Individual SNMP Trap Support feature adds the ability to enable or disable SNMP system management notifications (traps) individually. SNMP traps that can be specified are “authentication”, “linkup”, “linkdown”, and “coldstart”.
New and Changed Information . Table 7 Cable Modem Card LEDs LED Label Color State Description Enabled Green On Indicates that the cable modem card is operating normally: receiving DC power from the router midplane and enabled for operation. N/A Off Either the card is shut down or the slot is not working. Green On For each upstream port, indicates that the upstream path is enabled. N/A Off Either the port is not configured, shut down, or the slot is not working.
New and Changed Information subnet information can be derived by the IP address and the mask value configured for the subinterface. All other SIDs for the CM that are created after the initial DHCP configuration of CM are bound to the same subinterface by the Cisco uBR7200 series router. The SID-to-subinterface mapping created by gleaning DHCP reply is used to associate an incoming packet to the correct subinterface and switched using VRF configured on that subinterface.
New and Changed Information New Hardware Features in Release 12.1(1a)T1 The following new hardware features are supported by the Cisco uBR7200 Series Universal Broadband Routers in Cisco IOS Release 12.1(1a)T1. Broadband Wireless—Point-to-Point The Cisco high-speed point-to-point broadband fixed wireless system provides a fixed, dedicated wireless link from one site to another. This link delivers full-duplex data in the Unlicensed National Information Infrastructure (U-NII) band (5.725 to 5.825 GHz).
New and Changed Information Cisco Cable Clock Card The Cisco Cable Clock Card enables the uBR7246 VXR to synchronize to an external T1 timing source and propagate the clock to the downstream DOCSIS-based cable access routers. It is designed for cable networks running VoIP applications.
New and Changed Information New Software Features in Release 12.1(1a)T1 The following new software features are supported by the Cisco uBR7200 Series Universal Broadband Routers in Cisco IOS Release 12.1(1a)T1. Baseline Privacy Interface MIB Cisco uBR7200 Series Universal Broadband Routers now include support for the DOCSIS Baseline Privacy Interface (BPI) MIB.
New and Changed Information Concatenation is enabled by default for current cable modem cards (see the “Cable Modem Cards” section on page 9), but can be disabled with the Cisco IOS no cable upstream number concatenation interface command. The show controller command displays whether concatenation is enabled on an interface. Note • Concatenation is supported only with cable modems that support DOCSIS concatenation.
New and Changed Information The cable modem remote command configures the router for the polling interval; the no version of this command disables the status polling. The show cable modem remote-query command displays the collected information: • Downstream receive power level • Downstream signal/noise ratio (SNR) • Upstream power level • Transmit timing offset • Micro reflection (in dB) Firewall Enhancements Cisco IOS Release 12.
New and Changed Information Frame Relay features include the following: • Cisco and IETF encapsulation • Cisco, ANSI, and ITU LMI with auto-sensing • UNI DTE, DCE, and NNI • Inverse ARP • Traffic Shaping • Adaptive Shaping using BECN • Broadcast Queue • CDP over FR • TCP/IP Header Compression • RTP Header Compression • Cisco and IETF MIBs • Syslog Trap Alert for DLCI loss • Weighted Fair Queuing at the interface level based on DLCI classification • DLCI IP RTP priority support I
New and Changed Information occurs, instead of making large power adjustments for each correction, you can configure the Cisco uBR7200 series router to calculate the average value of the power corrections before making power adjustments. – The cable upstream power-adjust threshold command now accepts a range of 0–10 dB. The previous range was 0–2 dB.
New and Changed Information Redirect-Number Support for RADIUS and TACACS+ Servers If a telco-return customer is being authenticated by a RADIUS or TACACS+ server, and if the number dialed by the cable modem is being redirected to another number for authentication, Cisco IOS Release 12.1(1a)T1 can include the original number in the information sent to the authentication server.
New and Changed Information • show cable bundle number forwarding table — Displays all the currently known cable devices in the bundle. Administrators can create subinterfaces on cable interfaces or cable interface bundles to support VPN. Each subinterface can be assigned to a specific pool of IP addresses, mapping that subinterface to a particular VPN customer network.
New and Changed Information Note Cisco Network Registrar (CNR) supports the LEASEQUERY message type in software Release 3.01(T) and greater. New Hardware Features in Release 12.1(1) The following new hardware features are supported by the Cisco uBR7200 Series Universal Broadband Routers in Cisco IOS Release 12.1(1). • IEEE 802.
New and Changed Information • Downstream Rate Shaping with IP Type of Service Bits • Dynamic Map-Advance • Encrypted Baseline Privacy Key Exchange • Improved and Extended Command-Line Interface • Integrated Time-of-Day Server • Inter-Switch Link Support for Non-Cable Interfaces • Management Information Base Enhancements – “docsIfUpChannelFrequency” now has a range starting with 0, where 0 indicates that the frequency is unknown or not specified – “docsIfUpChannelWidth” now has a range of 0–16
Limitations and Restrictions Limitations and Restrictions Cisco IOS Release 12.1(5)T for the Cisco uBR7200 Series Universal Broadband Routers contains the following limitations and restrictions. Unless otherwise indicated, these limitations and restrictions apply to all previous software releases as well. Wireless Modem Card Support for Port Adapters Not all port adapters are supported with the point-to-point wireless modem card.
Important Notes The last maintenance release was renamed from 12.1(4)T to 12.1(5)T to synchronize with its parent software base, the 12.1(5) mainline release, and to reflect that 12.1(5)T has all the bug fixes of the 12.1(5) mainline release. The 12.1 T release train is a superset of the 12.1 mainline release; hence any defect fixed in the 12.1 mainline is also fixed in 12.1 T. The set of features for 12.1(4)T is the same as that for 12.1(5)T. There was no change in the feature content of the release.
Important Notes Table 8 Cable-Specific and Wireless-Specific MIBs Supported on Cisco uBR7200 Series Universal Broadband Routers MIB Filename Description SNMPv2-TC.my This module defines the textual conventions as specified in 11.3 T RFC 1903. SNMPv2-TC-V1SMI.my SNMPv2-MIB.my Release SNMPv2-MIB-V1SMI.my The management protocol, SNMPv2, provides for the 11.3 T exchange of messages that convey management information between the agents and the management stations, as defined in RFC 1907. CISCO-SMI.
Important Notes Table 8 Cable-Specific and Wireless-Specific MIBs Supported on Cisco uBR7200 Series Universal Broadband Routers MIB Filename Description Release CISCO-WIRELESS-TC-MIB.my This module contains the textual conventions for the other wireless modem card MIB modules. 12.0(7)XR CISCO-WIRELESS-TC-MIB-V1SMI.my CISCO-WIRELESS-EXP-MIB.my CISCO-WIRELESS-EXP-MIB-V1SMI.my CISCO-WIRELESS-IF-MIB.my CISCO-WIRELESS-IF-MIB-V1SMI.my This module is the Cisco Wireless Radio Experimental MIB 12.
Caveats Note Some of the MIBs listed in Table 9 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, then go to Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB.
Caveats • CSCds02764 When a Cisco uBR7200 series router sends a LEASEQUERY packet to a Cisco Network Registrar (CNR), the Cisco uBR7200 router might misinterpret the LEASEQUERY reply from the CNR. There is no workaround. This is resolved in Cisco IOS Release 12.1(5)T.
Caveats • CSCdr52543 The upstream port of a line card might be poorly initialized and not receive upstream bursts from the cable modems. In that case, the modems are not able to complete the initial ranging and continue to power-cycle infinitely. This situation only occurs if the upstream port has non default physical-layer configuration parameters stored in the startup configuration.
Caveats Workaround: It is recommended that the user not use this non default upstream channel setting of 128 ticks/mslot, channel width = 200000, until an image with the fix is available. The problem will NOT happen with the default setting of minislot size = 8 ticks, channel width = 1600000. However, if for any reason user MUST use minislot size = 128 ticks, the following hidden command can be used to allow CMs to complete initial ranging.
Caveats • CSCdp85836 Spectrum Management task used many CPU cycles and caused CPU utilization to increase. This is resolved in Cisco IOS Release 12.1(2)T. • CSCdp82100 If VRFs were configured on cable subinterfaces and cable dhcp-giaddr policy was configured on the subinterface, then primary addresses configured on the cable subinterface were used for CMs and secondary address hosts. During testing, it was found that the giaddr was set to the primary address for both CMs and hosts.
Caveats Open Caveats for Wireless Modem Card Functionality for Release 12.1(1a)T1 This section describes possibly unexpected behavior by the point-to-point wireless modem card and wireless subsystem in Cisco IOS Release 12.1(1a)T1, which is the first release that supports the point-to-point wireless modem card. • CSCdm55663 When the point-to-point wireless modem card is configured for maximum IF cable loss, the receiver’s sensitivity may be reduced by 1.5 to 2 dB.
Related Documentation Closed and Resolved Caveats for Release 12.1(1a)T1 All the caveats listed in this section are closed or resolved in Cisco IOS Release 12.1(1a)T1. • CSCdp99255 The RM7000 processor used by C7140 and NPE-300 has a bug in version 1.X that may cause skipping or incorrect installation instruction execution. This leads to unpredictable results including memory corruption and crashes. Software has worked around the problem in accordance with manufacturer's recommendation.
Related Documentation 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 II to find caveats of any severity for any release. You can reach Bug Navigator II on CCO at Service & Support: Online Technical Support: Software Bug Toolkit or at http://www.
Related Documentation Note 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.
Related Documentation Feature Navigator Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS software images support a particular set of features and which features are supported in a particular Cisco IOS image. Feature Navigator is available 24 hours a day, 7 days a week. To access Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, e-mail the Contact Database Administration group at cdbadmin@cisco.com.
Related Documentation 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.
Related Documentation Table 10 Cisco IOS Software Release 12.
Obtaining Documentation Table 10 Cisco IOS Software Release 12.
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