Page 1: Configuration Guide
Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide Cisco IOS® Software 12.3 BC, 12.2 BC, 12.2CX, 12.1 EC May 2009 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387)
Page 2 Cisco Stackpower, Cisco StadiumVision, Cisco TelePresence, Cisco WebEx, DCE, and Welcome to the Human Network are trademarks; Changing the Way We Work, Live, Play, and Learn and Cisco Store are service marks; and Access Registrar, Aironet, AsyncOS, Bringing the Meeting To You, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, CCVP, Cisco, the...
Page 3: Table Of Contents
1-18 Overview of Cisco uBR7200 Series Software C H A P T E R Cisco IOS Releases and Images for the Cisco uBR7200 Series Determining Your Cisco IOS Software Release Upgrading to a New Software Release 12.3 BC Release Train Images and Requirements 12.2 BC Release Train Images and Requirements...
Page 4 Booting and Logging onto the Cisco uBR7200 Series Setting Password Protection on the Cisco uBR7200 Series Recovering Passwords on the Cisco uBR7200 Series Configuring the Cisco uBR7200 Series Using AutoInstall 2-10 Autoinstall Requirements 2-10 Understanding AutoInstall 2-11 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-04...
Page 5 Setting Up the BOOTP or RARP Server for Autoinstall 2-16 Connecting the New Router to the Network 2-16 Configuring the Cisco uBR7200 Series Using the Setup Facility 2-17 Introduction to the Setup Facility 2-17 Configuring Global Parameters with the Setup Facility...
Page 6 3-33 Activating IP Multicast Echo 3-33 Activating IP Broadcast Echo 3-34 Configuring DOCSIS Baseline Privacy Interface on the Cisco uBR7200 Series C H A P T E R Baseline Privacy Interface Overview BPI Key Management Differentiating Traffic Streams CM Communication with BPI Enabling DOCSIS BPI DOCSIS 1.1 Baseline Privacy Interface Plus Overview...
Page 7 Create Selection Tag Scopes General Telco Return Create Network Scopes Create Policies for Class of Service or for Upgrading Cable Modem Cisco IOS Images CNR Steps to Support Subinterfaces Troubleshooting the System C H A P T E R Understanding show Command Responses...
Page 8 Resolving Common Image Installation Problems A P P E N D I X Before You Begin Resolving Default Gateway Issues Troubleshooting Problems During Software Transfer Troubleshooting Problems by Verifying the Software Image Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-04...
Page 9 C-12 Telco Return Example C-14 Frequency Allocation for the Cisco uBR7200 Series Universal Broadband Routers A P P E N D I X Configuration Register Information for the Cisco uBR7200 Series Universal Broadband A P P E N D I X...
Page 10 Contents Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-04...
Page 11: Preface
Preface This preface describes the objectives, intended audience, organization and terminology of this Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide. The Cisco uBR7200 series CMTS and this guide support the following Cisco IOS release trains: • 12.3 BC 12.2 BC...
Page 12: Audience
Cisco uBR7200 series hardware, DOCSIS or EuroDOCSIS requirements, and networking. Document Organization This guide focuses on configuration of Cisco IOS software for the Cisco uBR7200 series. Table 2 summarizes the chapters and procedures in this guide. Table 2...
Page 13: Conventions
Provides troubleshooting instructions for the configuration of the Cisco uBR7200 series CMTS. Appendix A, “Installing or Upgrading Cisco Explains how to install Cisco IOS software onto "Run from RAM" Cisco routers IOS Software” using a TFTP server or remote copy protocol (rcp) server application.
Page 14: Terms And Acronyms
ASIC—Application Specific Integrated Circuit • AWG—American wire gauge • • BGP—Border Gateway Protocol BPI—Baseline Privacy Interface • • CATV—cable television CM—cable modem • • CMTS—cable modem termination system (headend) CoS—class of service • Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-04...
Page 15 HFC—Hybrid Fiber Coax HOME—Subscriber Unit • • HS—Head-end Shelf HSRP—Hot-Standby Router Protocol • • IP—Internet Protocol IPSec—IP Security Protocol • ISL—Inter-Switch Link protocol • ISS—Instruction Set Simulator • Kbps—kilo-bits per second • Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-04...
Page 16 • RTS—Request To Send • SDRAM—synchronous dynamic random-access memory • SIMM—single in-line memory module • SM—Subscriber Modem or Spectrum Manager • SMI—single-mode intermediate reach • SNMP—Simple Network Management Protocol • Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-04...
Page 17: Related Documentation
If the hypertext link to any external document does not operate, you can access the desired document by Note typing or pasting the full document title in the Search field of the Cisco.com home page. Click Go. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-04...
Page 18: Cisco Cable Modem Termination System Reference Documentation
(Cisco.com login ID and password required). Obtaining Documentation and Submitting a Service Request For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at: http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed...
Page 19: Overview Of Cisco Ubr7200 Series Software
C H A P T E R Overview of Cisco uBR7200 Series Software The Cisco uBR7200 series uses Cisco IOS® software to offer enhanced stability, features, performance and investment protection. This chapter summarizes system and software features of the Cisco uBR7200 series Cable Modem Termination System (CMTS).
Page 20: C H A P T E R 1 Overview Of Cisco Ubr7200 Series Software
Upgrading to a New Software Release An upgrade is an order placed for a Cisco IOS feature set that contains more functionality than the feature set that you are replacing. An upgrade is not an “update.” An update consists of installing a more recent version of the same feature set.
Page 21: 12.3 Bc Release Train Images And Requirements
Cisco uBR7200 series universal broadband routers for Cisco IOS Release 12.3(9a)BC. Cisco uBR7200 series routers are only available with a 48 MB or 128 MB of Flash disk memory on the I/O Controller cards. The UBR7200-NPE-G1 uses compact Flash disk only.
Page 22: 12.2 Bc Release Train Images And Requirements
None — UBR7200 Boot Image ubr7200-boot-mz None None — 1. 32 MB of Flash is required for Cisco IOS Release 12.2(15)BC2a and later releases in the Cisco IOS BC train. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-05...
Page 23: 12.2 Cx Images And Requirements
Working and Protect interfaces. 12.2 CX Images and Requirements The 12.2 CX releases are based on Cisco IOS Release 12.2(15)BC1, which is a child of Cisco IOS Release 12.2(15)T. The 12.2 BC train is an interim release train that provides DOCSIS 1.1 two-way support, along with fixes for software caveats and support for selected new features.
Page 24 Chapter 1 Overview of Cisco uBR7200 Series Software Cisco IOS Releases and Images for the Cisco uBR7200 Series Flash disks, an alternative to linear Flash memory, are Flash memory-based devices that can be used as file storage media in the PCMCIA card slots of the I/O Controllers. Each I/O Controller has two PCMCIA slots and can be configured with up to 256 MB of Flash disk memory.
Page 25: 12.1 Ec Images And Requirements
1. The 12.1 EC UBR7200 boot image is provided for the IUBR7200-I/O-2FE/E input/output controller, which must use the Cisco IOS 12.1(10)EC1 or later 12.1 EC release boot image. This image cannot be used on any other I/O controllers. The image subset legend for...
Page 26: Cisco Ubr7200 Series Chassis Overview
The cards currently require external upconverters to connect to the cable system. Cisco port adapters connect to the IP backbone and external networks. Your cable plant, combined with your planned and installed subscriber base, service offering, and external network connections, determine the Cisco uBR7200 Series chassis, cable interface line cards, port adapters, and other components you use.
Page 27: Cisco Ubr7200 Series Universal Broadband Routers
Overview of Cisco uBR7200 Series Software Cisco uBR7200 Series Chassis Overview Cisco 6 MHz products can be used in 8 MHz cable plants. The products, however, operate at a Note maximum downstream bandwidth of 27 Mbps, ignoring 2 MHz of available channel width, and limiting upstream channel choices to the range below 42 MHz.
Page 28 Note Cisco uBR7246 Universal Broadband Router The Cisco uBR7246 offers an industry-proven CMTS and carrier-class router in a scalable platform to support data, voice, and video services for medium to large network installations. The Cisco uBR7246 provides the following major hardware features: Network processing engine •...
Page 29: Supported Hardware On The Cisco Ubr7200 Series
Earlier release notes stated that the NPE-175 was also supported on the Cisco uBR7200 series routers. Note Because the NPE-175 has reached its end of life and was never made available for order on the Cisco uBR7200 series routers, it has been removed from the table.
Page 30 Memory Replacement Instructions for the Network Processing Engine or Network Services Engine and • Input/Output Controller I/O Controllers The Cisco uBR7200 series universal broadband routers support the following input/output (I/O) controllers: • UBR7200-I/O-2FE/E input/output controller Features two Fast Ethernet ports and one Ethernet port.
Page 31 For the latest information about supported port adaptors, refer to Cisco uBR7200 Series Software Release Notes on Cisco.com: http://www.cisco.com/en/US/docs/cable/cmts/ubr7200/release/notes/12_3bc/123BCu72.html Not all Cisco uBR7200 series routers support all port adapters. Some port adapters must be at certain Note revision levels to be used in the Cisco uBR7246 VXR router.
Page 32: System Interoperability
Networks (VPNs). Telco-return Cable modems • To support telco return, use a Cisco uBR7200 series software image that contains “t” in its file name. The telco-return cable modem must be DOCSIS-based or compliant and must be configured to support telco return.
Page 33: Cisco Ubr7200 Series Router Configuration Overview
Port Adapter and Line Card Slot and Logical Interface Numbering For Cisco uBR7200 series components, the slot number is the chassis slot in which a port adapter or a cable interface card is installed. The logical interface number is the physical location of the interface port on a port adapter.
Page 34 • Activating the RF carrier on each upstream port to support data from CMs or set top boxes on your network to the Cisco uBR7200 series router. Enable upstream data traffic, using the following command: Router (config-int)# no cable upstream port shutdown The specified upstream port LED lights.
Page 35: Mac-Layer Addressing
These addresses are not used by other devices in the network; they are specific and unique to each port. The Cisco uBR7200 series uses a specific method to assign and control the MAC-layer addresses for port adapters.
Page 36 Cisco IOS software where it is analyzed for indications of significant ingress or impulse noise. From this analysis, the Cisco IOS software draws informed conclusions on the cleanest portion(s) of the upstream frequency spectrum to switch to and initiates a frequency hop.
Page 37: Cable Interface Line Card Slots
Overview of Cisco uBR7200 Series Software Cisco uBR7200 Series Router Configuration Overview While most Cisco cable interface line cards transmit downstream signals to upconverters using a Note 44 MHz frequency, the MC16E transmits downstream IF signals to an upconverter using the 36.125 MHz frequency.
Page 38: Interfaces And Physical Ports
DS, US0, US1, US2, US3, US4, US5 Port Adapter Slots You can display information on a specific port adapter or all port adapters in the Cisco uBR7200 series. To display information about all port adapter slots, use the show interfaces command. To display information about a specific port adapter slot, use the show interfaces command with the port adapter type and slot number in the format of show interfaces [type slot/port].
Page 39 Cisco uBR7200 Series Router Configuration Overview The follow example illustrates the show interfaces command with status information (including the physical port adapter number) for each port adapter and cable interface card in the Cisco uBR7246 router: Router# sh int FastEthernet0/0 is administratively up, line protocol is up Hardware is DEC21140, address is 0000.0000.0000 (bia 0000.0000.0000)
Page 40: Supported Software Features For The Cisco Ubr7200 Series
Many additional features were introduced in release trains prior to those listed above, such as 12.0 T, 12.0 SC, 12.1 XF and other earlier releases that may no longer be supported on the Cisco uBR7200 Series. Refer to the release notes for your respective Cisco IOS release for additional feature support and image information.
Page 41 Chapter 1 Overview of Cisco uBR7200 Series Software Supported Software Features for the Cisco uBR7200 Series Table 1-9 Cisco uBR7200 Series Routers Features by Cisco IOS Release (continued) Feature Supporting Cisco IOS Releases Cisco IOS Release 12.3(9a)BC 12.3(9a) enhancements to or introductions of the following...
Page 42 DOCSIS 1.1 Quality of Service 12.2 BC and 12.3 BC release trains, with additional DOCSIS 1.1 Features features supported in certain earlier Cisco IOS 12.1 EC and 12.0 SC release trains. Includes: Concatenation for DOCSIS 1.1 •...
Page 43 Chapter 1 Overview of Cisco uBR7200 Series Software Supported Software Features for the Cisco uBR7200 Series Table 1-9 Cisco uBR7200 Series Routers Features by Cisco IOS Release (continued) Feature Supporting Cisco IOS Releases DOCSIS 1.1 Two-way 12.2 BC, 12.3 BC...
Page 44 Chapter 1 Overview of Cisco uBR7200 Series Software Supported Software Features for the Cisco uBR7200 Series Table 1-9 Cisco uBR7200 Series Routers Features by Cisco IOS Release (continued) Feature Supporting Cisco IOS Releases IP Broadcast and Multicast Features Multicast QoS Support on the Cisco 12.3(13a)BC and later 12.3 BC releases...
Page 45 Chapter 1 Overview of Cisco uBR7200 Series Software Supported Software Features for the Cisco uBR7200 Series Table 1-9 Cisco uBR7200 Series Routers Features by Cisco IOS Release (continued) Feature Supporting Cisco IOS Releases Dynamic Ranging Support 12.1 EC and later releases in this and multiple release trains Load Balancing for the Cisco CMTS 12.2(15)BC1 and later releases in the 12.2 BC and 12.3 BC...
Page 46 Chapter 1 Overview of Cisco uBR7200 Series Software Supported Software Features for the Cisco uBR7200 Series Table 1-9 Cisco uBR7200 Series Routers Features by Cisco IOS Release (continued) Feature Supporting Cisco IOS Releases Cisco IOS Firewall Feature Set 12.0(1)T and later releases in this and additional release trains Cisco IOS Firewall Feature 12.1 XM and later releases in this and additional release trains...
Page 47 Chapter 1 Overview of Cisco uBR7200 Series Software Supported Software Features for the Cisco uBR7200 Series Table 1-9 Cisco uBR7200 Series Routers Features by Cisco IOS Release (continued) Feature Supporting Cisco IOS Releases Cable Modulation Profile Default 12.1 EC and later releases in this and additional release trains...
Page 48 Chapter 1 Overview of Cisco uBR7200 Series Software Supported Software Features for the Cisco uBR7200 Series Table 1-9 Cisco uBR7200 Series Routers Features by Cisco IOS Release (continued) Feature Supporting Cisco IOS Releases Overlapping Subinterface IP 12.1(3)EC and later releases in this and additional release trains...
Page 49: Cisco Ubr7200 Series Router Configuration Tools
The Extended Setup facility enhances the Setup Facility by prompting you to configure each interface on the system as you progress through the CMTS configuration. The Configuration mode allows you to configure the Cisco uBR7200 series router manually if you prefer not to use Autoinstall or the Setup Facility. Refer to the “Configuring the Cable Interface with the Extended Setup Facility”...
Page 50 This feature adds support for internal DOCSIS cable modem configuration file storage and generation. The cable modem configuration file is generated and stored as part of the Cisco IOS configuration file. The DOCSIS configuration files are not stored in Flash memory but are automatically generated when requested for TFTP downloads to cable modems.
Page 51: Bandwidth Management Features
However, this default form of load balancing affects the cable modems only when they initially register with the Cisco CMTS. It does not dynamically rebalance the cable modems at later times, such as when they might change upstream channels in response to RF noise problems, or when bandwidth conditions change rapidly because of real-time traffic such as Voice over IP (VoIP) and video services.
Page 52 A new global configuration command, [no] parser cache, allows you to enable or disable the parser cache feature on the Cisco uBR7200 series.The parser cache feature is enabled by default on all platforms using Cisco IOS Release 12.1(5)T or later.
Page 53 The show cable qos command is changed to show cable qos profile n command, where the optional argument n can be used to display a specific profile. The release notes up to and including Cisco IOS Release 12.0(12)SC stated that the show cable qos Note command was changed to show cable qos-profile n command, with a hyphen between “qos”...
Page 54 Syntax Description This command has no additional arguments or keywords. Defaults DOCSIS events are saved to the general logging buffer on the Cisco CMTS by default. Command Modes Global configuration mode Command History Release Modification 12.3(9a)BC...
Page 55 Indicates whether the logging feature is enabled and the status of the logging buffer. For additional information about logging events on the Cisco CMTS, refer to the following document on Cisco.com: Cisco IOS CMTS Cable Command Reference Guide •...
Page 56 (Optional) Specifies that queries will be sent to verify unknown source IP addresses in upstream data packets. Do not enable the local DHCP server on the Cisco CMTS and Note configure local DHCP address pools, using the ip dhcp pool command, when using this option, because this prevents DHCP address validation.
Page 57 To enable the Cisco CMTS Static CPE Override feature on the Cisco CMTS, use the cable submgmt default command in global configuration mode. This command enables field technicians to add a temporary CPE device behind the subscriber’s cable modem. The temporary CPE device shares the same SID settings as the original CPE device, even though the temporary CPE device has a different MAC address.
Page 58 (dynamic) DHCP IP address to a static IP address without first clearing the DHCP CPE host entries from the Cisco CMTS. The CPE IP state changes from dhcp to static cpe. This static override allows a second CPE device with a second MAC address behind the same cable •...
Page 59 Overview of Cisco uBR7200 Series Software Supported Software Features for the Cisco uBR7200 Series The following example configures the Cisco CMTS to accept a maximum of five temporary CPE devices behind a subscriber’s cable modem: Router(config)# cable submgmt default max-cpe 5...
Page 60 Additional and related improvements are also available for the show tech-support command. To display information about the interface controllers for a cable interface on the Cisco CMTS router, use the show controllers cable command in user EXEC or privileged EXEC mode.
Page 61 (for example, the Cisco uBR-MC16C card). Examples The following is sample output for the downstream connection for slot 3 on port 0 on Cisco CMTS router from the show controllers cable downstream command: CMTS01# show controllers cable 3/0 downstream Cable 3/0 Downstream is up Frequency not set, Channel Width 6 MHz, 64-QAM, Symbol Rate 5.056941 Msps...
Page 62 R/S Interleave I/J Indicates Reed Solomon framing based on ITU S.83-B. The following example illustrates the information from the show controllers cable command on a Cisco uBR7246VXR router on which Cisco IOS Release 12.3(9a)BC is installed. Router# show controllers cable x/y For additional information about this and other commands, refer to the following document on Cisco.com:...
Page 63: Cisco Quality Of Service Features
Quality of Service (QoS) by managing delay, delay variation (jitter), bandwidth, and packet loss parameters on a network becomes the secret to a successful end-to-end business solution. Cisco QoS is the set of techniques to manage network resources. The Cisco uBR7200 series CMTS offers the following Cisco QoS features, in addition to supporting additional DOCSIS QoS features.
Page 64 • Packet coloring The Cisco IOS NBAR feature can also be used to detect and respond to denial-of-service and other types of network attacks. Cisco IOS NBAR uses a protocol description language module (PDLM) to define the rules by which the NBAR processes recognize an application. New PDLM definitions can usually be loaded without the need for a Cisco IOS software upgrade or a router reboot, allowing for a rapid response to discovered attacks.
Page 65: Dhcp Servers And Feature Support
DHCP features. Configurable Leasequery Server Previously, lease query requests could only be sent to the DHCP server. Beginning with Cisco IOS Release 12.3(17a)BC, an alternate server may be configured to receive the requests. There are a few restrictions: Lease queries are sent to the DHCP server unless an alternate server is configured.
Page 66 The service ID (SID) and the source IP address of the packet must match those in the ARP host database on the Cisco CMTS. If the packet check succeeds, the packet is allowed to pass. Rejected packets are discarded in either of these two checks.
Page 67: Docsis 1.0 Feature Support
To enable BPI, choose software at both the CMTS and cable modem 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.
Page 68: Docsis 1.0 Concatenation Override Featurette
Cisco uBR7200 series universal broadband router. The key management protocol defined by baseline privacy allows Cisco uBR7200 series universal broadband routers to provide two types of keys to cable modems. The Key Exchange Key (KEK) decrypts the Traffic Exchange Keys (TEK). The TEK is the key used to encrypt and decrypt data packets.
Page 69: Docsis 1.0 Extensions
Cisco uBR7200 series software supports a concatenated burst of multiple MAC frames from a cable modem that supports concatenation. All DOCSIS 1.0 extensions are activated only when a cable modem or Cisco uBR924 that Note supports these extensions solicits services using dynamic MAC messages or the feature set.
Page 70: Docsis Quality Of Service Enhancements Prior To Docsis 1.1
New fields in the DOCSIS configuration file can be used so that when a cable modem requests a voice or fax SID, the MAC scheduler on the Cisco uBR7200 series router schedules fixed periodic slots on the upstream for that traffic flow. The cable modem does not have to contend for these slots, and because the Cisco uBR7200 series router controls the timing of the slots, it has a very precise control over potential delay and jitter.
Page 71: Docsis Customer Premises Equipment Configurator
Supported Software Features for the Cisco uBR7200 Series In addition, the Cisco uBR7200 series router can create QoS profiles for G.711 fax traffic and G.729 voice traffic. These profiles can be customized with the scheduling parameters required for the G.711 and G.729 CODECs being used at the subscriber's site.
Page 72: Enhanced Rate Bandwidth Allocation (Erba) Support For Docsis 1.0 Cable Modems
The QoS profile’s downstream burst size in bytes. To display ERBA settings as applied to DOCSIS 1.0 cable modems and QoS profiles on the Cisco CMTS, use the show cable qos profile command in Privileged EXEC mode. The following example of the cable qos profile command in global configuration mode illustrates changes to the cable qos profile command.
Page 73 Baseline Privacy Enabled Usage Guidelines If a cable modem registers with a QoS profile that matches one of the existing QoS profiles on the Cisco CMTS, then the maximum downstream burst size, as defined for that profile, is used instead of the default DOCSIS QoS profile of 1522.
Page 74: Docsis 1.0+ Feature Support
In response to the limitations of DOCSIS 1.0 in handling real-time traffic, such as voice calls, Cisco created the DOCSIS 1.0+ extensions to provide the more important QoS enhancements that were expected in DOCSIS 1.1. The main enhancements provide basic Voice-over IP (VoIP) service over the...
Page 75: Docsis 1.1 Feature Support
Concatenation allows a cable modem to send several packets in one large burst, instead of having to make a separate grant request for each. All DOCSIS 1.0 extensions are available only when using a cable modem (such as the Cisco uBR924 Caution cable access router) and CMTS (such as the Cisco uBR7200 series router) that support these extensions.
Page 76 • Baseline Privacy Interface Plus (BPI+) Baseline Privacy Interface Plus (BPI+) is available and supported on the Cisco uBR7200 series with Cisco IOS Release 12.2(4)BC1 and subsequent BC1 releases. DOCSIS 1.1 enhances these security features with Baseline Privacy Interface Plus (BPI+), which includes the following enhancements: •...
Page 77 This feature is separate from the cable modem's ability to support multiple CPE devices. For example, Note depending on the Cisco IOS software release being used, Cisco uBR900 series cable access routers can support a maximum of either 3 or 254 CPE devices. Also, by default, a DOCSIS-based cable modem supports one CPE device, but this can be changed by modifying the MAX CPE parameter in the modem's DOCSIS configuration file.
Page 78 The Cisco uBR7200 series routers support onboard Dynamic Host Configuration Protocol (DHCP) servers, Time of Day (ToD) and TFTP servers. This allows the Cisco uBR7200 series routers to provide cable modems with IP address information, to supply an RFC 868-compliant time-of-day timestamp, and to download a DOCSIS configuration file, without requiring separate and external servers.
Page 79 DOCSIS 1.0 and 1.0+ Cable Modem Support DOCSIS 1.1 cable modems can coexist with DOCSIS 1.0 and 1.0+ cable modems in the same network—the Cisco uBR7200 series provides the levels of service that are appropriate for each cable modem. DOCSIS 1.1 Service Flow Model DOCSIS 1.1 offers enhanced Quality of Service (QoS) features that give priority for real-time traffic...
Page 80 A CMTS administrator can enhance the upstream throughput from a cable modem connected to the Cisco Cisco uBR7200 series CMTS. The system employs a new algorithm that automatically tunes the lookahead time in MAPs, based on several input parameters for the corresponding upstream channel.
Page 81 ToD server, it contacts a TFTP server to download a DOCSIS configuration file. If a binary DOCSIS configuration file can be copied to a Flash device on a Cisco CMTS, then the router can act as a TFTP server for that file.
Page 82 IP address from the DHCP server. If a user on a second PC or cable interface statically assigns the same IP address to a PC, the Cisco uBR7200 series CMTS reports this. Using customer databases, administrators can cross-reference the spoofing cable modem and PC to prevent further usage.
Page 83: Downstream Frequency Override
The Cisco uBR7200 series routers allow DOCSIS 1.1 two-way transmission of digital data and Voice over IP (VoIP) traffic over a hybrid fiber-coaxial (HFC) network. The Cisco uBR7200 series 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.
Page 84 Downstream Rate Shaping with IP Type of Service Bits Cisco uBR7200 series routers support downstream data rate shaping on a per-modem basis. The Type of Service (ToS) bits in the IP packet header can be set to specify that packet's class of service, allowing packets for certain traffic flows (such as VoIP) to be given precedence over packets for other flows (such as data).
Page 85: Docsis 2.0 Feature Support
DOCSIS 2.0 A-TDMA Support, page 1-67 DOCSIS 2.0 A-TDMA Support Support for DOCSIS 2.0 A-TDMA on the Cisco uBR7200 series commences with Cisco IOS Release 12.2(15)CX and continues with later releases in the 12.2 CX, 12.2 BC and 12.3 BC release trains.
Page 86: High Availability Features
• Cisco DDC (Dual DOCSIS Channel) The Cisco Dual DOCSIS Channel (DDC) feature provides redundancy to cable voice and data customers by using two or three CMTSs with connected RF upstreams and downstreams. Redundancy is provided by controlling each CMTS on which the cable modems register, and by allowing movement of the cable modems between the Cisco CMTS systems.
Page 87: Drp Server Agent
In this High Availability configuration, four Working router chassis are supported with one Protect router chassis. These five routers are further cabled and configured with two Cisco RF Switches in the same rack using the Cisco Hot Standby Connection to Connection (HCCP) protocol.
Page 88: Hccp Support For The Cisco Ubr-Mc16S Cable Interface Line Card
In Cisco IOS Release 12.1(7)EC and later releases, the Cisco uBR-MC16S card can be used as the protect cable interface or working cable interface, with either another Cisco uBR-MC16S card or a Cisco uBR-MC16C card.
Page 89: High Availability Support For Encrypted Ip Multicast
Cisco IOS Release 12.3(13a)BC removes support for HCCP N+1 Redundancy on the Cisco uBR7200 series routers. Associated configuration, show, and debug commands are not supported in this release. The latest release to support HCCP N+1 Redundancy for the Cisco uBR7200 Series is Cisco IOS release Note 12.3(9a)BC.
Page 90: Intercept Features
Configuration for 1+1 redundancy takes place at the cable interface line 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.
Page 91 To configure access control lists (ACLs) for inbound connections to all COPS listener applications on the Cisco CMTS, user the cops listeners access-list command in global configuration mode. To remove this setting from the Cisco CMTS, us the no form of this command.
Page 92 This feature allows you to change the DSCP marking for COPS messages that are transmitted or received by the Cisco router. Differentiated Services Code Point (DSCP) values are used in Quality of Service (QoS) configurations on a Cisco router. DSCP summarizes the relationship between DSCP and IP precedence.
Page 93 To specify the marking for COPS messages that are transmitted by the Cisco router, use the cops ip dscp command in global configuration mode. To remove this configuration, use the no form of this command.
Page 94 Use default dscp (000000) Use EF dscp (101110) Additional COPS Information Cisco 12.3(13a)BC also supports Access Control Lists (ACLs) for use with COPS. Refer to the “Access Control List Support for COPS Intercept” section on page 1-72. For additional information about configuring COPS on the Cisco CMTS, refer to the following documents on Cisco.com:...
Page 95 To override the default TCP receive window size on the Cisco CMTS, use the cops tcp window-size command in global configuration mode. This setting allows you to prevent the COPS server from sending too much data at one time. To return the TCP window size to a default setting of 4K, use the no form of this command.
Page 96 Cisco IOS Release 12.3(13a)BC introduces support for Service Independent Intercept (SII) on the Cisco uBR7200 CMTS. Cisco SII provides a more robust level of the lawful intercept (LI) options offered in the Packet Intercept feature. Cisco SII is the next level of support for judicially authorized electronic intercept, to include dial access, mobile wireless, tunneled traffic, and Resilient Transport Protocol (RTP) for voice and data traffic on the Cisco CMTS.
Page 97: Ip Broadcast And Multicast Features
• Multicast QoS Support on the Cisco uBR7246VXR CMTS Cisco IOS Release 12.3(13a)BC introduces support for Multicast downstream QoS feature. This feature t provides the ability to assign static mapping to a multicast group. The Multicast downstream QoS feature uses the existing infrastructure (DOCSIS 1.1 service flow) to assign a multicast service identifier (SID) to a multicast group used in the Baseline Privacy Interface (BPI) encryption feature.
Page 98: Ip Routing Features
Use this command to turn on CMTS Multicast Qos debugging. router# debug cable mcast-qos IP Routing Features The Cisco uBR7200 series router offers you several features to assist with IP routing configuration and performance. Cable ARP Filter Enhancement, page 1-80 •...
Page 99: Cable Intercept Command
ARP requests. The valid range is 1 to 5 seconds, with a default of 2 seconds. Cisco IOS Release 12.3(9a)BC also removes a prior caveat with HCCP Protect interfaces. Previously, in the event of a revert-back HCCP N+1 switchover, manual removal of cable arp filter reply and cable arp filter request configurations may have been required afterward on Protect interfaces.
Page 100: Cable Interface Bundling And Cable Subinterfaces
12.2(4)XF1 and continues with later Cisco 12.2 BC releases. To reduce the number of subnets consumed per Cisco CMTS, cable interface bundling is used. Multiple cable interfaces can share a single IP subnet. An IP subnet is required for each bundle. You can bundle all cable interfaces on a Cisco CMTS into a single bundle.
Page 101: Configurable Alternate Termination System Information Messages
Internet using this single registered IP address. The ability of multiple LAN devices to use the same globally unique IP address is known as overloading. Because Easy IP (Phase 1) uses existing port-level multiplexed NAT functionality within the Cisco IOS software, IP addresses on the remote LAN are invisible to the Internet.
Page 102: Ip Enhanced Igrp Route Authentication
Network Address Translation (NAT) is a mechanism for conserving registered IP addresses in large networks and simplifying IP addressing management tasks. As its name implies, Cisco IOS NAT translates IP addresses within private “internal” networks to “legal” IP addresses for transport over public “external” networks (such as the Internet).
Page 103: Router-Port Group Management Protocol
• User Datagram Protocol (UDP) • Be aware that when configuring a routing protocol, the Cisco IOS software must reset the interfaces to Note enable the change. This normally does not significantly affect operations on the interface, except that when this is done on a cable interface, it causes all cable modems on that particular downstream to reinitialize, potentially interfering with data transmission on that downstream.
Page 104: Management Features
Quality of Service (QoS) policy on the CMTS Headend. Admission Control establishes efficient resource and bandwidth utilization in a way that was not possible in prior Cisco IOS releases. Admission Control monitors multiple system-level resources on the Cisco CMTS, and performs automatic resource allocation on a service-request basis.
Page 105: Cable Arp And Proxy Arp
Cisco IOS Release 12.3(13a)BC introduces new configuration, debug and show commands for Admission Control on the Cisco CMTS. For additional information, refer to the following document on Cisco.com: Admission Control for the Cisco Cable Modem Termination System •...
Page 106: Cable Monitor Command
Your Cisco IOS platform automatically displays 8-bit and multibyte character sets and prints the ESC character as a single character instead of as the caret and bracket symbols (^[) when the Cisco Web browser interface is enabled with the ip http server command.
Page 107 Prior Cisco IOS releases may not have distributed cable modems evenly over individual upstream channels, nor in a way that accounted for downstream and upstream segment loads that account for one another.
Page 108: Dynamic Ranging Support
Enhanced Modem Status Display The Cisco uBR7200 series universal broadband router supports polling of the CMs to obtain parameter and status information on an ongoing basis. Two new Cisco IOS commands are added to support this feature. • The cable modem remote command configures the router for the polling interval; the no version of this command disables the status polling.
Page 109: Entity Mib, Phase 1
Enhancements for the Cisco uBR7200 Series Cable Router on Cisco.com. Entity MIB, Phase 1 For a complete list of MIBs supported by the Cisco uBR7200 series platform, refer to the Cisco uBR7200 Series Software Release Notes on Cisco.com: http://www.cisco.com/en/US/docs/cable/cmts/ubr7200/release/notes/12_3bc/123BCu72.html For descriptions of supported MIBs and how to use MIBs, refer to the Cisco MIBs web page on Cisco.com.
Page 110: Max-Cpe Override For Cable Modems
• http://www.cisco.com/en/US/tech/tk86/tk168/technologies_tech_note09186a00800a7609.shtml Per-Modem Error Counter Enhancements The Cisco uBR7200 Series supports display of per-modem error counters with the following new command: show cable modem [<ip-addr> | <mac-addr>] error Below is an example display from the show cable modem error command:...
Page 111: Pre-Equalization Control For Cable Modems
Identifier for the OUI or cable modem to be excluded. Command Default Pre-equalization is enabled by default on the Cisco router, and for cable modems that have a valid and operational DOCSIS configuration file. When enabled, pre-equalization sends ranging messages for the respective cable modems.
Page 112 Router# show running-config | inc oui cable pre-equalization exclude oui 00.09.04 Router# On the line card console for the same Cisco uBR7246VXR router, verify the configuration with the following command: clc_7_1# show running-config | inc oui cable pre-equalization exclude oui 00.09.04...
Page 113: Subscriber Traffic Management (Stm) Version 1.1
Monitoring and application of traffic management policies are applied on a service-flow basis. • Monitoring window duration increased from seven to 30 days. • For additional information about STM 1.1 and Cisco CBT 3.2, refer to the following document on Cisco.com: Subscriber Traffic Management for the Cisco CMTS •...
Page 114: Multicast Features
Multicast (PIM) suite of routing protocols for IP multicast. In PIM, packet traffic for a multicast group is routed according to the rules of the mode configured for that multicast group. The Cisco IOS implementation of PIM supports three modes for a multicast group: Bidirectional mode •...
Page 115: Bidirectional Pim
Cisco IOS IP Configuration Guide, Release 12.2 on Cisco.com. DOCSIS Set-top Gateway (DSG) 1.0 The following DSG 1.0 features were added for multiple Cisco CMTS platforms in Cisco IOS release 12.3(9a)BC: • Vendor names are supported to 20 characters per SNMP requirements (all platforms).
Page 116 Cisco DSG 1.1 does not support the PRE1 module on the Cisco uBR10012 router. • Cisco DSG 1.1 does not support Service Flow Quality of Service (QoS), which is available at Layer 3. • Cisco DSG 1.1 does not support tunnel security, but strictly access control lists (ACLs).
Page 117: Advanced-Mode Docsis Set-Top Gateway Issue 1.2
DSG 1.2 offers substantial support for enhanced DOCSIS implementation in the Broadband Cable environment. The set-top box dynamically learns the overall environment from the Cisco Cable Modem Termination System (CMTS), to include MAC address, traffic management rules, and classifiers. For additional information, refer to the following document on Cisco.com:...
Page 118: Ip Multicast Over Atm Point-To-Multipoint Virtual Circuits
Token Ring interfaces. Only 31 functional addresses are available. A bit in the destination MAC address designates it as a functional address. The implementation used by Cisco complies with RFC 1469, IP Multicast over Token-Ring Local Area Networks. If you configure this feature, IP multicast transmissions over Token Ring interfaces are more efficient than they formerly were.
Page 119: Packetcable And Voice Support Features
SSM is a datagram delivery model that best supports one-to-many applications, also known as broadcast applications. SSM is the core networking technology for the Cisco implementation of the IP Multicast lite suite of solutions targeted for audio and video broadcast application environments.
Page 120: Security Features
It also provides an integrated approach to end-to-end call signaling, provisioning, quality of service (QoS), security, billing, and network management. Cisco IOS Release 12.2(11)BC1 and later releases in the Cisco IOS 12.3 release train support the PacketCable 1.0 specifications and the CALEA intercept capabilities of the PacketCable 1.1 specifications.
Page 121: Access Control Lists
Vendor-Proprietary RADIUS Attributes, page 1-109 • For additional BPI information and configuration steps, refer to the DOCSIS 1.1 for the Cisco uBR7200 Series Universal Broadband Routers feature module on Cisco.com, and to additional documents cited below: http://www.cisco.com/en/US/docs/cable/cmts/feature/DOCSIS11.html...
Page 122: Cable Source Verification (Cable Source-Verify Command)
Cisco.com. Cisco IOS Firewall Feature Set The Cisco IOS Firewall feature set interoperates in seamless fashion with Cisco IOS software, providing great value for the many benefits it delivers. The most outstanding benefits include: Flexibility — installed on a Cisco router, this all-in-one scalable solution performs multiprotocol •...
Page 123: Dynamic Mobile Hosts
• Configurable real-time alerts and audit trail logs. • For general information, see the description of the Cisco IOS Firewall Feature Set in the Cisco Product Catalog. For detailed information, refer to these documents on Cisco.com: • Cisco IOS Firewall Feature Set...
Page 124: Dynamic Shared Secret (Dmic) With Oui Exclusion For Docsis
Dynamic Shared Secret feature is not invoked for that particular cable modem. Verify that a cable modem is able to register with the Cisco CMTS before enabling the Dynamic Shared Secret feature.
Page 125: Named Method Lists For Aaa Authorization & Accounting
The original number can be sent as a Cisco vendor-specific attribute (VSA) for TACACS+ servers and as RADIUS Attribute 93 (Ascend-Redirect-Number) for RADIUS servers.
Page 126: Reflexive Access Lists
Secure Shell (SSH) Supported in "k1" Images for Cisco uBR7200 In Cisco IOS Release 12.1 T, the definition of “k1” images for Cisco uBR924 cable access routers was changed from support for BPI only, to also include support for Secure Shell (SSH). This change caused an inconsistency with Cisco uBR7200 series images, since the definition of “k1”...
Page 127: Snmp Features And Enhancements
Remote Authentication Dial-In User Service (RADIUS) attributes are used to define specific authentication, authorization, and accounting elements in a user profile, which is stored on the RADIUS daemon. Cisco supports a variety of vendor-proprietary RADIUS attributes. For additional information, refer to the appendix “Radius Attributes”...
Page 128: Individual Snmp Trap Support
IF-MIB. Since IF-MIB supports subinterfaces, all objects in this varbind list are also supported for subinterfaces. The feature allows you to base the Link Up/Down trap varbind list on a Cisco-specific or IETF standard with a new CLI configuration command.
Page 129: Snmpv3
Cisco.com. SNMP Management Information Base (MIB) Enhancements Obtaining Current Management Information Bases To obtain lists of supported MIBs by platform and Cisco IOS release, and to download MIB modules, refer to the Cisco MIB web page on Cisco.com. For additional information, refer to the Cisco uBR7200 Series Software Release Notes on Cisco.com:...
Page 130 (http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml). Most MIBs are available in both SNMPv1 and SNMPv2 versions; the SNMPv1 versions have V1SMI as part of their filenames. MIB files from the Cisco IOS 12.0 SC release train that are no longer supported in the subsequent Note 12.1 EC, 12.2 XF, or 12.2 BC release trains are not listed in the table below.
Page 131 CISCO-CABLE- SPECTRUM-MIB-V1SMI.my 1. The Cisco IOS 12.2 BC release train continues the MIBs and most features introduced in the Cisco IOS 12.2 XF release train. 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.
Page 132 “cdxCmtsCmOnOffNotification” will be sent for every online/offline cable modem state change when “cdxCmtsCmOnOffTrapEnable” is set to true (1). Alternatively, you can set the SNMP object “cdxCmtsCmOnOffTrapInterval” to The default for “cdxCmtsCmOnOffTrapInterval” is 0. Note Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 1-114 OL-2239-05...
Page 133 Cisco MIBs web page. RF Interface MIB For a complete list of MIBs supported by the Cisco uBR7200 Series, refer to the refer to the Cisco uBR7200 Series Software Release Notes on Cisco.com: http://www.cisco.com/en/US/docs/ios/12_2/12_2b/12_2bc/release/notes/u7208bc1.html Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide...
Page 134 The NTP MIB defines a set of NTP server system 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, refer to the MIB file itself at ftp://ftp.cisco.com/pub/mibs/v2/CISCO-NTP-MIB.my.
Page 135: Snmp Mibs Changes And Updates In Cisco Ios Release 12.3(9A)Bc
Host or cable modems can be cleared using the “cdxCmCpeResetNow” MIB object. The number of current CPEs can be displayed using the “cdxCmtsCmCurrCpeNumber” MIB object. SNMP MIBs Changes and Updates in Cisco IOS Release 12.3(9a)BC Cisco IOS Release 12.3(9a)BC adds the following new MIB support for the Cisco uBR7246VXR router. CISCO-CABLE-QOS-MONITOR MIB •...
Page 136 • (downstream). CISCO-PROCESS-MIB The CISCO-PROCESS-MIB enables you to monitor CPU and memory utilization for RF cards, cable interface line cards and broadband processing engines on the Cisco CMTS. This information is collected via SNMP. DOCS-IF-MIB The DOCS-IF-MIB (released as 2670) has been updated to conform to the version 5 of the DOCSIS 2.0 RF MIB Specification (draft-ietf-ipcdn-docs-rfmibv2-05.txt).
Page 137: Spectrum Management And Advanced Spectrum Management Features
Whenever this occurs, a Failover Switchover SNMP trap is generated and appears to the SNMP server as a “Warm Start” trap. When a Cisco uBR7200 series router is powered up, an SNMP trap is generated and appears to the SNMP Note server as a “Cold Start”...
Page 138: Advanced Spectrum Management
Digital Signal Processors (DSPs), it is possible enforce guided hopping as used on the Cisco uBR-MCxC and Cisco uBR-MC16E line cards. Cisco does not recommend that you disable the optimal frequency hopping feature of the Cisco uBR-MC16S for normal operations.
Page 139: Dynamic Upstream Modulation
When return-path spectrum conditions improve, the software 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.
Page 140: Input Power Levels
Cisco Cable Modem Termination System Feature Guide on Cisco.com. Spectrum Management Enhancements in Cisco IOS Release 12.3(9a)BC Cisco IOS Release 12.3(9a)BC introduces enhancements to spectrum management for the Cisco uBR7246VXR router: • Supports the Cisco Broadband Troubleshooter (CBT) 3.2, page 1-123...
Page 141: Testing, Troubleshooting And Diagnostic Features
Cable Flap List The flap list is a patented tool that is incorporated in the Cisco IOS software for the Cisco Cable Modem Termination System (CMTS) universal broadband routers for troubleshooting cable modem connectivity problems. The flap list tracks “flapping” cable modems—cable modems that have intermittent connectivity problems—that could indicate a problem with the cable modem or with the upstream or...
Page 142 Overview of Cisco uBR7200 Series Software cops tcp window-size technicians need specialized tools to resolve RF problems in the cable plant. Cisco Broadband Troubleshooter 3.2 (CBT 3.2) is a simple, easy-to-use tool designed to accurately recognize and resolve such issues.
Page 143: Virtual Interfaces
Cisco uBR-MC28/U Broadband Processing Engine (BPE). In prior Cisco IOS releases, cable interface bundling was limited to physical interfaces as master or slave interfaces, and show commands did not supply bundle information. Virtual interface bundling removes the prior concepts of master and slave interfaces, and introduces...
Page 144: Vlan Features
Cisco IOS release 12.3(13a)BC introduces support for dynamic service ID (SID) and VRF mapping on the Cisco CMTS, to support VoIP with MPLS. Formerly, the MPLS SID mapping feature only applied to provisioned service flows. This feature enables the mapping of all PacketCable DQoS service flows to one particular VRF.
Page 145: Ip Type-Of-Service And Precedence For Gre Tunnels
Transparent LAN service with Layer 2 VPNs in Cisco IOS Release 12.3(13a)BC and later releases. As more Internet users switch to IPv6, the Cisco IPv6 protocol support helps enable the transition. IPv6 fixes a number of limitations in IPv4, such as limited numbers of available IPv4 addresses in addition to improved routing and network autoconfiguration.
Page 146: Mapping Service Flows To Mpls-Vpn
MAC address to match the packet to the proper packet classifier, which then identifies the correct SFID to use. The cable modem then transmits the packet to the Cisco uBR7200 series router using this upstream SFID.
Page 147: Overlapping Subinterface Ip Addresses
Cisco IOS Release 12.1(2)EC1 and earlier releases assumed that IP addresses were unique, but 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.
Page 148: Transparent Lan Services (Tls) And L2 Tunneling Atm/Sids
Configuring ATM L2VPN or 802.1q for a particular cable modem removes any previous cable modem Note configuration on the Cisco uBR7246VXR router. For example, if TLS with 802.1q is configured on the router for a particular cable modem, and then you configure ATM L2VPN for the same cable modem, the Cisco uBR7246VXR router supports the latter and removes the former with no additional warning or system messages.
Page 149: Wan Optimization And Services Features
“Configuring the Bandwidth Allocation Control Protocol” in the Cisco IOS Dial Services Configuration Guide: Network Services, Release 12.1 on Cisco.com. Closed User Group Selection Facility Suppress Option A closed user group (CUG) selection facility is a specific encoding element that allows a destination data terminal equipment (DTE) to identify the CUG to which the source and destination DTEs belong.
Page 150: Enhanced Local Management Interface (Elmi)
Solutions Configuration Guide, Release 12.2 Frame Relay MIB Extensions The Cisco Frame Relay MIB adds extensions to the standard Frame Relay MIB (RFC 1315). It provides additional link-level and VC-level information and statistics that are mostly specific to Cisco Frame Relay implementation.
Page 151: Frame Relay Router Foresight
Frame Relay Router ForeSight ForeSight is the network traffic control software used in some Cisco switches. The Cisco Frame Relay switch can extend ForeSight messages over a User-to-Network Interface (UNI), passing the backward congestion notification for VCs. ForeSight allows Cisco Frame Relay routers to process and react to ForeSight messages and adjust VC level traffic shaping in a timely manner.
Page 152: Isdn Multiple Switch Types
The Cisco IOS Multilink Point-to-Point Protocol (MLPPP) feature is now supported for selected line cards and port adapters on the Cisco uBR7100 series and the Cisco uBR7200 Series, which share the same MLPPP code as the Cisco 7200 series. There is no new hardware or software for MLPPP in this release.
Page 153: National Isdn Switch Types For Bri And Pri
PPPoE provides service-provider digital-subscriber line (DSL) support. The support of PPPoE on cable interfaces of the Cisco uBR7200 series routers allows customer premises equipment (CPE) behind the cable modem to use PPP as a mechanism to get their IP addresses and use it for all subsequent data traffic, just like a dial-up PPP client.
Page 154: Vpdn Mib And Syslog Facility
Overview of Cisco uBR7200 Series Software cops tcp window-size VPDN MIB and Syslog Facility For a complete list of MIBs supported by the Cisco uBR7200 Series, refer to the Cisco uBR7200 Series Software Release Notes on Cisco.com: http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/ub7200rn/index.htm For descriptions of supported MIBs and how to use MIBs, refer to the Cisco MIBs web page on Cisco.com.
Page 155: Docsis And Cmts Interoperability
Data over server network and filter cable service facility bank specification Security & (DOCSIS) Telco access return controller Upstream RF interface Cable modem Remote telco return server interface facility Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 1-137 OL-2239-05...
Page 156: Eurodocsis Cable Plants
CMTS MAC domains per cable interface line card. Cisco provides high-speed routers to route interactive traffic between the backbone and Ethernet in the headend internal network. Signaling protocols maintain the network intelligence needed to route traffic optimally, automatically building and maintaining routing tables to direct traffic and signal failures for rerouting in the network.
Page 157: Docsis-Compliant Downstream Signals
QAM-256), based on the cable interface card used, your cable plant, and the significance of the data. DOCSIS defines the messages and data types for CMTS to cable modem (or cable modem in an STB) Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 1-139...
Page 158: Docsis-Compliant Upstream Signals
Cisco uBR7200 Series software supports extensions to DOCSIS 1.0 to operate with DOCSIS 1.0-based Note CMs or cable RF CPE devices (such as Cisco uBR924 cable access routers or Cisco uBR910 series cable data service units) that also support DOCSIS 1.0 extensions.
Page 159 [no] cable upstream <port number> range backoff [automatic] | [<start> <end>] [no] cable upstream <port number> data-backoff [automatic] | [<start> <end>] In general, Cisco discourages adjusting default settings. Only personnel who have received the necessary Caution training should attempt to adjust values.
Page 160: Traffic Engineering
These plants produce more noise and signal level variances. Cisco recommends you keep input to all amplifiers at the same power level in the upstream direction and keep output of all amplifiers in the downstream direction at the same power level. This is called unity gain.
Page 161 • telecommuters exchange more data upstream than residential Internet access customers. Video, which can include digital video channels based on the services in your network; current Cisco • uBR7200 Series products support EuroDOCSIS operation where data is MPEG encoded and packed into an 8 MHz RF channel spacing based on the channel plan used and equipment at the headend or distribution hub.
Page 162 These items are addressed in DOCSIS 1.0 extensions. Refer to “This section summarizes Cisco uBR7200 series router software features for all supported Cisco IOS Release trains, and directs you to additional configuration information for each feature.”...
Page 163: Configuring The Cable Modem Termination System For The First Time
C H A P T E R Configuring the Cable Modem Termination System for the First Time This chapter describes how to start up and configure the Cisco uBR7200 series Cable Modem Termination System (CMTS) for the first time. This chapter contains the following sections: Section Purpose “Configuration Fundamentals...
Page 164: C H A P T E R 2 Configuring The Cable Modem Termination System For The First Time
• Be sure that you have appropriate addresses and values based on your network before you attempt to configure the router. Enter the show version command to display the release of Cisco IOS software on your router. Configuration Fundamentals for the Cisco uBR7200 Series This section describes the basic parameters of using passwords, and describes initial configuration utilities that are available to you.
Page 165 Ensure that your Cisco uBR7200 series router is installed installed in operational fashion. according to the instructions in the hardware installation guide that came with your CMTS (for example, the Cisco uBR7200 Series Hardware Installation Guide on Cisco.com: http://www.cisco.com/en/US/docs/cable/cmts/ubr7200/i nstallation/guide/ub72khig.html...
Page 166 Subnet masks • Device names • After these prerequisites are met, you are ready to configure the Cisco uBR7200 series CMTS. This includes, at a minimum: • Configuring a host name and password for the Cisco uBR7200 series router Configuring the router to support IP over the cable plant and network backbone •...
Page 167: Booting And Logging Onto The Cisco Ubr7200 Series
Connect a terminal to the I/O controller console port of the Cisco uBR7200 series router and establish a terminal session. Power on the Cisco uBR7200 series router. Enter no to choose the normal operating mode of the router. Continue to password definition or recovery and additional configuration.
Page 168: Recovering Passwords On The Cisco Ubr7200 Series
Recovering Passwords on the Cisco uBR7200 Series This section describes how to recover a lost enable or console login password and how to replace a lost enable secret password on your Cisco uBR7200 series router. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide...
Page 169 Complete the following steps to recover or replace a lost enable, enable secret, or console login password: Step 1 Attach an ASCII terminal to the console port on your Cisco uBR7200 series router. Step 2 Configure the terminal to operate at 9600 baud, 8 data bits, no parity, and 2 stop bits.
Page 170 ROM monitor and display the ROM monitor prompt ( rommon 1> To set the configuration register on a Cisco uBR7200 series router, use the configuration register utility Step 6 by entering the confreg command at the ROM monitor prompt as follows: rommon 1>...
Page 171 Router# copy running-config startup-config Enter the reload command to reboot the router: Step 20 Router# reload Log in to the router with the new or recovered passwords. Step 21 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 172: Configuring The Cisco Ubr7200 Series Using Autoinstall
TFTP server. The AutoInstall process begins any time a Cisco IOS software-based device is turned on and a valid configuration file is not found in nonvolatile random-access memory (NVRAM).
Page 173: Understanding Autoinstall
If a host name is not resolved, the new router attempts to load router-confg or ciscortr.cfg. Preparing for the AutoInstall Process Complete the following steps to prepare your Cisco uBR7200 series CMTS router for the AutoInstall process: Attach the appropriate synchronous serial cable to the synchronous serial interface 0 on the router.
Page 174: Performing The Autoinstall Procedure
Performing the AutoInstall Procedure This procedure provides the steps to configure your Cisco uBR7200 series router using AutoInstall. For a detailed description of the processes involved with AutoInstall, refer to the chapter titled “Using...
Page 175 Saves the configuration file to your startup configuration. On most platforms, this step saves the configuration to NVRAM. On the Cisco7000 family, this step saves the configuration to the location specified by the CONFIG_FILE environment variable. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 2-13 OL-2239-03...
Page 176 On most platforms, this step saves the configuration to Note NVRAM. On the Cisco 7000 family, this step saves the configuration to the location specified by the CONFIG_FILE environment variable. You must use a DTE interface on the new router because the network always provides the clock signal.
Page 177: Setting Up The Tftp Server For Autoinstall
131.108.170.1 The following host configuration file contains the minimal set of commands needed for AutoInstall using SLARP or BOOTP: enable-password letmein line vty 0 password letmein Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 2-15 OL-2239-03...
Page 178: Setting Up The Bootp Or Rarp Server For Autoinstall
On most platforms, this step saves the configuration to startup-config NVRAM. On the Cisco 7000 family, this step saves the configuration to the location specified by the CONFIG_FILE environment variable. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide...
Page 179: Configuring The Cisco Ubr7200 Series Using The Setup Facility
Configuring the Cisco uBR7200 Series Using the Setup Facility Introduction to the Setup Facility The Cisco uBR7200 series Setup facility (also called the System Configuration dialog) is a useful and efficient tool for configuring your CMTS. The Cable Interface Setup Facility is an alternative mechanism to enable or configure Cisco uBR7200 series parameters.
Page 180: Configuring Global Parameters With The Setup Facility
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR7200 Series Using the Setup Facility When the router determines that AutoInstall is not configured, it defaults to the Setup facility. If the LAN or WAN cable is not connected, the router boots from Flash memory and automatically runs the Setup facility.
Page 181 Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR7200 Series Using the Setup Facility Last reset from power-on Bridging software. X.25 software, Version 3.0.0. 2 FastEthernet/IEEE 802.3 interface(s) 4 Serial network interface(s) 4 Cable Modem network interface(s) 125K bytes of non-volatile configuration memory.
Page 182 Configuring interface Ethernet1/7: Is this interface in use? [no]: Configure your cable interface. The following example shows a Cisco uBR7200 series router with cable Step 9 interface. The Setup facility, for the most part, determines the status of all interfaces.
Page 183: Configuring Upstream Frequencies With The Setup Facility
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR7200 Series Using the Setup Facility Is this interface in use? [yes]: Configure this interface? [yes]: IP address for this interface [19.2.22.6]: Number of bits in subnet field [8]: Class A network is 19.0.0.0, 8 subnet bits;...
Page 184: Configuring Interfaces With The Setup Facility
Number of bits in subnet field [0]: Class A network is 1.0.0.0, 0 subnet bits; mask is 255.0.0.0 Do not enable Internetwork Package Exchange (IPX) on this interface; IPX is not supported on the Cisco Step 2 uBR7200 series universal broadband router:...
Page 185: Configuring Synchronous Serial Interfaces
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR7200 Series Using the Setup Facility Configuring Synchronous Serial Interfaces The synchronous serial interfaces are configured to allow connection to WANs through a CSU/DSU. Complete the following steps to configure the serial ports:...
Page 186 Use the enabled mode `configure' command to modify this configuration. Press RETURN to get started! Your Cisco uBR7200 series router is now minimally configured and is ready to use. Use the setup command in provileged EXEC mode if you want to modify the parameters after the initial configuration.
Page 187: Configuring The Cable Interface With The Extended Setup Facility
The following Cisco cable interfaces can be installed in a Cisco CMTS: The Cisco uBR7200 series router supports one downstream modulator and one upstream • demodulator. The Cisco uBR7200 series router supports the following defaults: QAM-256 at 40 MBps – downstream, and QAM-16 at 5 Mbps upstream. –...
Page 188: Configuring Global Parameters In Extended Setup
Identifying Cable Modem Line Card Slots On the Cisco uBR7200 series router, the cable interface line card is fixed and is always slot 1. To display information about a specific cable interface slot’s downstream channel, use the show interfaces cable command with the CM card’s slot number and downstream port number in the following format:...
Page 189: Configuring The Cisco Ubr7200 Series Manually Using Configuration Mode
Configuring the Cisco uBR7200 Series Manually Using Configuration Mode You can configure the Cisco uBR7200 series router manually if you prefer not to use the Setup facility or AutoInstall. Complete the following steps: Connect a console terminal to the console port on the I/O controller.
Page 190 Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR7200 Series Manually Using Configuration Mode Enter the configure terminal command (conf t)at the enable prompt to enter configuration mode from Step 4 the terminal: Router# configure terminal Enter configuration commands, one per line.
Page 191: Saving Your Configuration Settings
Baseline Privacy Interface Configuration Files The Cisco uBR7200 series CMTS supports 56-bit and 40-bit encryption and decryption; 56 bit is the default. After you choose a CMTS image that supports Baseline Privacy Interface (BPI), BPI is enabled by default for the Cisco uBR7200 series CMTS.
Page 192 (TEKs). A KEK is assigned to a CM, based on the CM’s service identifier (SID), and permits the CM to connect to the Cisco uBR7200 series router when Baseline Privacy is activated. The TEK is assigned to a CM when its KEK has been established. The TEK is used to encrypt data traffic between the CM and the Cisco uBR7200 series router.
Page 193: Configuring Cable Modem Interface Features
The Cisco IOS software command-line interface (CLI) can be used to configure the Cisco cable interface line card for correct operation on the hybrid fiber-coaxial (HFC) cable network. This chapter describes the several required and optional tasks that configure the Cisco cable interface line card.
Page 194: Configuring The Downstream Cable Modem Interface
This configuration is required. Address Resolution Protocol (ARP) is an Internet protocol used to map IP addresses to MAC addresses on computers and other equipment installed in a network. You must activate ARP requests on the cable interface so that the Cisco uBR7200 series CMTS can perform IP address resolution on the downstream path.
Page 195: C H A P T E R 3 Configuring Cable Modem Interface Features
ARP and when you entered the show interface cable command. Activating Downstream Ports To activate a downstream port on a Cisco uBR7200 series cable interface card for digital data transmissions over the HFC network, complete the steps in the following table. Command...
Page 196: Setting The Integrated Upconverter
FEC ITU-T J.83 Annex B, R/S Interleave I=32, J=4 Setting the Integrated Upconverter The Cisco uBR7200 series router supports an integrated upconverter that outputs a DOCSIS RF signal on the DS0 RF downstream port. To enable the integrated upconverter, you must do the following: Set the downstream frequency—The integrated upconverter must be configured for the digital...
Page 197: Assigning The Downstream Channel Id
Assigning the Downstream Channel ID To assign a numeric channel ID to the downstream port on the Cisco cable interface line card, use the following command in cable interface configuration mode. The acceptable range is 0 to 255.
Page 198: Configuring Downstream Rate Limiting And Traffic Shaping
The downstream frequency setting must match the setting on the upconverter. Caution After defining unique downstream IDs, test the CMs for correct operation. Cisco recommends that when using this feature, you re-test each subsequent software release of CM code to verify correct operation and to ensure reasonable acquisition time for new installations.
Page 199: Setting The Downstream Helper Address
Check DHCP options and the IP address of the Time-of-Day (ToD) server: Step 4 Ping the ToD server using the source IP address option. • Check IP routing. • Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 200: Setting The Downstream Interleave Depth
RF and a DHCP, but fail on ToD or TFTP. Setting the Downstream Interleave Depth Set the interleave depth for the downstream port on the Cisco cable interface line card. A higher interleave depth provides more protection from bursts of noise on the HFC network; however, it increases downstream latency.
Page 201: Setting The Downstream Mpeg Framing Format
Annex B is the DOCSIS MPEG framing format standard for North America. Annex B framing format is automatically set when configuring Cisco cable interface line cards. The Note cable interface line card’s downstream ports and the connected CMs on the network must be set to the same MPEG framing format and must support DOCSIS operations as appropriate.
Page 202: Setting Downstream Traffic Shaping
Downstream traffic shaping is disabled by default. To enable downstream traffic shaping for a downstream port on a Cisco cable interface line card, use one of the following commands in cable interface configuration mode.
Page 203: Configuring The Upstream Cable Modem Interface
Provides instructions to activate upstream ports. Each upstream section on page 3-15 port must be activated to enable upstream data transmission from the CMs on the HFC network to the Cisco uBR7200 series CMTS. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide...
Page 204: Activating Upstream Admission Control
Provides instructions to set the upstream input power level in Level” section on page 3-24 decibels per millivolt (dBmV), and provides additional information about the Cisco uBR7200 series controls the output power levels of CMs “Setting Upstream Traffic Shaping” Provides instructions to activate traffic shaping on the section on page 3-26 upstream.
Page 205: Activating Upstream Differential Encoding
Configuring Cable Modem Interface Features Configuring the Upstream Cable Modem Interface Cisco CMTS upstream admission control is turned off by default and must be activated. To set the upstream admission control as a percentage of the upstream channel capacity, use the following command in cable interface configuration mode.
Page 206: Activating Upstream Forward Error Correction
When FEC is activated, all CMs on the network also activate FEC. Although upstream FEC is an option, Cisco recommends that you use upstream FEC. FEC is activated Note by default and should not be disabled.
Page 207: Activating The Upstream Ports
0 output buffer failures, 0 output buffers swapped out Activating Upstream Frequency Adjustment To enable automatic upstream frequency adjustment for a specified cable interface, use the following commands in cable interface configuration mode. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 3-15 OL-2239-03...
Page 208: Activating Upstream Power Adjustment
Router(config-if)# no cable upstream usport power-adjust continue To return the automatic upstream power-adjustment noise value to the default of 30 percent, enter the following command in cable interface configuration mode: Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 3-16 OL-2239-03...
Page 209: Activating The Upstream Scrambler
Verify that you selected a valid frequency for your router. Step 5 Activating Upstream Timing Adjustment To enable upstream timing adjustment for a specified cable interface, use one of the following commands in cable interface configuration mode. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 3-17 OL-2239-03...
Page 210: Configuring Upstream Rate Limiting And Traffic Shaping
<n1> depends on the number of upstream channels on the specific cable interface line card. Using Cisco IOS Release 12.0(5)T1 or higher, the software supports: Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 3-18...
Page 211: Setting Upstream Backoff Values
You have the same options for ranging backoff. For both backoff windows, the default start value is 0; the default end value is 4. Valid values are from 0 to 15. Cisco does not recommend that you adjust default values, but that you enable the automatic dynamic Note backoff algorithm.
Page 212 All cable interfaces should recover in 0 to 10 minutes after all services are restored (Cisco uBR7200 series, RF transport, DHCP, TFTP, and ToD servers). A CM that takes longer than 10 minutes could be experiencing a problem with the modem itself, a problem with CMTS settings, or a problem in the DOCSIS provisioning servers.
Page 213: Setting The Upstream Channel Width
Note For QAM-16 channel widths of 400 kHz (320 ksps) or greater, Cisco recommends that you use QAM-16 modulation for long and short data, and that you use QPSK for request, initial, and station communications. For QAM-16 channel widths of 200 kHz (160 ksps), all communication must be able to use QAM-16.
Page 214: Setting The Upstream Frequency
Setting the Upstream Frequency The upstream channel frequency of your RF output must be set to comply with the expected input frequency of your Cisco cable interface line card. To configure upstream channel frequencies, perform one of the following tasks: •...
Page 215 (in MHz), the more difficulty you might have. Enter a center frequency between 20 and 38 MHz if you have difficulty. You can also select a default that does not set a specific fixed value. The Cisco uBR7200 series software Note instructs the cable interfaces to use this frequency as the center frequency.
Page 216: Setting The Upstream Input Power Level
Setting the Upstream Input Power Level The Cisco uBR7200 series CMTS controls the output power levels of CMs to meet the desired upstream input power level. The nominal input power level for the upstream RF carrier is specified in decibels per millivolt (dBmV).
Page 217: Specifying Upstream Minislot Size
Ensure that the captive installation screws are tight. Step 3 Verify that you have entered the correct slot and port numbers. Step 4 Verify that you selected a valid frequency for your router. Step 5 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 3-25 OL-2239-03...
Page 218: Setting Upstream Traffic Shaping
Token-bucket policing with shaping is the per-upstream default rate-limiting setting at the CMTS. Shaping can be enabled or disabled for the token-bucket algorithm. To enable upstream traffic shaping for an upstream port on a Cisco cable interface line card, use one of the following commands in cable interface configuration mode.
Page 219: Troubleshooting Tips
Configure a low-peak upstream rate limit for the CM in its QoS profile. Either use the command-line Step 1 interface (CLI) to modify the modem’s QoS profile, or edit the modem’s TFTP configuration file. refer theDOCSIS 1.1 for the Cisco uBR7200 Series Universal Broadband Routers feature module on Cisco.com.
Page 220: Configuring Optional Cable Modem Interface Features
Activating Host-to-Host Communication (Proxy ARP) Cable proxy ARP allows the Cisco uBR7200 series CMTS to issue cable ARP requests on behalf of CMs on the same cable network subnet. Because the downstream and upstreams are separate interfaces, modems cannot directly perform ARP Note with other modems on the cable plant.
Page 221: Activating Packet Intercept Capabilities
Router(config-if)# no cable intercept xxxx.xxxx.xxxx Configuring Cable Subinterfaces The command to create a subinterface over a cable interface is the same as that defined by Cisco IOS for other software applications: interface cable x/y.n where x is the slot number, y is the port number, and n is the subinterface number.
Page 222: Configuring And Monitoring Cable Interface Bundling
10.4.1.2 Configuring and Monitoring Cable Interface Bundling Cable interface bundling allows you to reduce the number of subnets consumed per Cisco uBR7200 series. Multiple cable interfaces can share a single IP subnet. An IP subnet is required for each bundle.
Page 223: Configuration Guidelines
If you shut down a slave interface, only the specific interface is affected. Cable Interface Bundling Examples In the following configuration example, interface 25 is configured as the master interface in the bundle: Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 3-31 OL-2239-03...
Page 224 The following example shows the error message you get if you try to configure an interface with an IP address that is not the master interface: Router(config-if)# cable bundle 5 Please remove ip address config first then reenter this command Router(config-if)# Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 3-32 OL-2239-03...
Page 225: Configuring Payload Header Suppression And Restoration
Cisco uBR7200 series CMTS. Activating IP Multicast Echo The Cisco uBR7200 series CMTS echos IP multicast packets by default. To activate IP multicast echo if it has been previously disabled, use the following command in cable interface configuration mode.
Page 226: Activating Ip Broadcast Echo
Activating IP Broadcast Echo By default, the Cisco uBR7200 series CMTS does not echo IP broadcast packets. To activate IP broadcast echo, use the following command in cable interface configuration mode. Command Purpose Enables IP broadcast echo.
Page 227: Chapter 4 Configuring Docsis Baseline Privacy Interface On The Cisco Ubr7200 Series
Cisco uBR7200 Series This chapter describes the DOCSIS 1.0 Baseline Privacy Interface (BPI), guidelines for configuring DOCSIS BPI on the Cisco uBR7200 series, and features of DOCSIS 1.1 Baseline Privacy Interface Plus (BPI+). This chapter contains the following sections:...
Page 228: Bpi Key Management
Chapter 4 Configuring DOCSIS Baseline Privacy Interface on the Cisco uBR7200 Series Baseline Privacy Interface Overview When BPI is operational, downstream multicast traffic flow that typically does not have a SID associated with it, now has a SID. The Privacy Extended Header Element includes the SID associated with the MAC Packet Data Physical Data Unit (PDU).
Page 229: Differentiating Traffic Streams
To enable BPI, choose software images 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. For Cisco uBR924 cable access routers, all CM images from Cisco IOS Release 12.0(5)T1 or later support this by default.
Page 230: Docsis 1.1 Baseline Privacy Interface Plus Overview
“DOCSIS 1.0 Feature Support” section on page 1-49. When baseline privacy is enabled, the Cisco uBR7200 series generates Traffic Encryption Keys (TEKs) for each applicable SID; 56-bit encryption/decryption is the default for Cisco uBR7200 series equipment. The router uses the keys to encrypt downstream data and decrypt upstream traffic from two-way cable interfaces.
Page 231 “Activating Cable Modem Ensures that only CMs that have received DHCP leases through the Upstream Address Verification” Cisco uBR7200 series CMTS can access the HFC network. section on page 5-4 “Clearing Cable Modem Counters” Clears the counters for the CMs in the station maintenance list.
Page 232: C H A P T E R 5 Managing Cable Modems On The Hybrid Fiber-Coaxial Network
Activating Cable Modem Authentication The Cisco uBR7200 series router can be configured to require all CMs to return a known text string to register with the CMTS and gain access to the network. The text string can be from 1 to 80 characters in length.
Page 233: Activating Cable Modem Insertion Interval
Activating Cable Modem Insertion Interval When a CM is ready to transmit data, it requests a channel from the Cisco uBR7200 series. You can limit the amount of time that a CM requests a channel for the first time from the Cisco uBR7200 series.
Page 234: Activating Cable Modem Upstream Address Verification
Configuration Protocol (DHCP) leases through the Cisco uBR7200 series CMTS can access the HFC network. The Cisco uBR7200 series CMTS discards all packets received from or for hosts that have not received Dynamic Host Configuration Protocol (DHCP)-assigned addresses. The default setting is "off"...
Page 235: Clearing Cable Modem Counters
The clear cable modem reset command is useful if a Simple Network Management Protocol (SNMP) Note manager is not available, or if the CM is unable to obtain an IP address or respond to SNMP messages. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 236: Configuring Cable Modem Registration Timeout
Configuring Cable Modem Registration Timeout By default, registered CMs that have no upstream activity for three minutes are timed out and disconnected from the Cisco uBR7200 series CMTS. This timeout interval can be decreased to 2 minutes or increased up to 60 minutes.
Page 237: Configuring The Dynamic Map Advance Algorithm
This command specifies a value to enhance the upstream throughput from a CM connected to the Cisco uBR7200 series router. The n argument provides the safety factor for the dynamic map advance algorithm. This argument is specified in usecs and controls the amount of extra lookahead time in MAPs to account for inaccuracies of the measurement system and software latencies.
Page 238: Configuring Maximum Hosts Attached To A Cable Modem
Media Access Controller (MAC) or Internet Protocol (IP) address. Definition of filters follows standard Cisco IOS configuration practices for access lists and groups. Configuring per modem or host filters is supported in Cisco IOS Release 12.0(5)T1 or higher, as well as Note in Cisco IOS Release 12.0(6)SC or higher.
Page 239: Configuring Sync Message Interval
The login server sets per-CPE filter in the Cisco uBR7200 series. The per-CPE filter overrides the per modem filter settings. If the CM goes offline for a brief period of time, filters defined using the Cisco uBR7200 series remain active. If a CM stays offline for more than 24 hours, filter settings are reset.
Page 240 Chapter 5 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Configuring Sync Message Interval Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 5-10 OL-2239-03...
Page 241: Configuring Basic Broadband Internet Access
A Cisco uBR7200 series router and an intermediate frequency (IF)-to-radio frequency (RF) upconverter are installed at the headend or distribution hub to transmit digital data. The Cisco uBR7200 series router downstream ports transmit IF signals to the upconverter, which translates the downstream signals to RF for broadcast.
Page 242: C H A P T E R 6 Configuring Basic Broadband Internet Access
Recommended Basic Configuration for High-Speed Internet Access The Cisco uBR7200 series router is fully capable of self-provisioning all CMs and hosts to which it is attached. The router supports multiple IP subnets, including different subnets for hosts and CMs. Configuration options are limited only by available configuration file length.
Page 243: Basic Internet Access Sample Configuration File
Configuring Basic Broadband Internet Access Basic Internet Access Sample Configuration File Basic Internet Access Sample Configuration File General The following sample configuration file for the Cisco uBR7200 series router includes the following features: Basic DOCSIS Internet Access • DHCP Address Pools—The Cisco uBR7200 series router acts as a DHCP server, providing different •...
Page 244: Basic Internet Access Sample Configuration File
10.128.1.129 255.255.255.0 client-identifier 0100.1095.817f.66 bootfile gold.cm ip dhcp pool DisabledModem(0010.aaaa.0001) host 10.128.1.9 255.255.255.0 client-identifier 0100.1095.817f.66 bootfile disable.cm ip dhcp pool DisabledModem(0000.bbbb.0000) client-identifier 0100.00bb.bb00.00 host 10.128.1.10 255.255.255.0 bootfile disable.cm interface Cable5/0 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 245 40-MHz channel. If that channel is not suitable for the transmission scheme available, the upstream automatically moves over to transmitting at 20 MHz and increases the receive power rating by 2 dB. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 246 Later in the configuration file example, upstream port 0 on the cable interface card installed in slot 5 uses both the spectrum management and the modulation profile configured in the sample: cable upstream 0 spectrum-group 1 cable upstream 0 modulation-profile 3 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 247: Overview Of The Cisco Network Registrar For The Cisco Ubr7200 Series
Cisco uBR7200 Series This chapter supplements the Cisco Network Registrar (CNR) documentation by providing additional cable-specific instructions that are pertinent to the Cisco uBR7200 series and CMTS management. For additional information about CNR, refer to these documents on Cisco.com: Cisco Network Registrar for the Cisco uBR7200 Series Universal Broadband Routers •...
Page 248: C H A P T E R 7 Overview Of The Cisco Network Registrar For The Cisco Ubr7200 Series
Chapter 7 Overview of the Cisco Network Registrar for the Cisco uBR7200 Series Cisco Network Registrar Description post-client-lookup—Examines and takes action on results of the client-class process, places data items in • the environment dictionary to use at the pre-packet-encode extension point, includes DHCP relay option check-lease-acceptable •...
Page 249: Overview Of Scripts
Chapter 7 Overview of the Cisco Network Registrar for the Cisco uBR7200 Series Overview of Scripts Suboption 2, MAC address of the cable interface: • Type 2 (1 byte) Len 6 (1 byte) Value xxxx.xxxx.xxxx (6 bytes) For additional information about Overview of Scripts This section lists the scripts applicable to cable interface configuration.
Page 250: Activate Scripts In Cisco Network Registrar
• cable relay-agent-option This enables Option82 on the Cisco uBR7200 series. On Cisco IOS Release 12.0—Command has been changed to the following global option: • ip dhcp relay info option On Cisco IOS Release 12.0 to 12.5, use the following command: •...
Page 251: Configure The System Default Policy
Chapter 7 Overview of the Cisco Network Registrar for the Cisco uBR7200 Series Configure the System Default Policy Configure the System Default Policy Add these options to the system default policy for: Cable modems to support on your network •...
Page 252: Telco Return
Create Network Scopes Following is an example for creating scopes for your network. This example assumes two Cisco uBR7200 series universal broadband routers in two locations, with one cable interface card on one Cisco uBR7200 series configured for telco return.
Page 253: Create Policies For Class Of Service Or For Upgrading Cable Modem Cisco Ios Images
The Cisco uBR7200 series requires management subinterfaces to route DHCP packets from CMs when Note they first initialize because the Cisco uBR7200 series does not know the subinterfaces they belong to until it has seen the IP addresses assigned to them by gleaning DHCP reply message from CNR.
Page 254 Chapter 7 Overview of the Cisco Network Registrar for the Cisco uBR7200 Series CNR Steps to Support Subinterfaces Create client entries for CMs that belong to ISP2 and assign them to isp2-client-class. Also assign the Step 6 scope selection tag isp2-cm-tag...
Page 255: Troubleshooting The System
C H A P T E R Troubleshooting the System This chapter contains troubleshooting information for various functions of your Cisco uBR7200 series Cable Modem Termination System (CMTS) and includes the following sections: Section Purpose “Understanding show Command Provides show command options for deriving system Responses”...
Page 256: Chapter 8 Troubleshooting The System
EXEC mode. sort-flap | sort-time] For the Cisco uBR7200 series, the sort option applies to one line card at a time, then the list is merged together. For example, the flap list is sorted for cable7/0, appears on the console, and then is sorted for cable 7/1, which then appears on the console, and so on.
Page 257 CM is offline or unavailable. The show cable flap-list and show cable modem commands indicate when the Cisco uBR7200 series CMTS has detected an unstable return path for a particular modem and has compensated with a power adjustment. An asterisk (*) appears in the power-adjustment field for a modem when a power adjustment has been made;...
Page 258 The “r” in the “Create by” column means that the first two classes of Note service the CMTS creates are reserved for CMs that are not online. The optional argument n can be used to display a specific profile. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 259 800 initial maintenance information elements (slots) at the time the show command was issued. MAC scheduling statistics—Displays the percentage of the upstream • bandwidth that is used for each type of slot on an average. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 260: Using A Headend Cable Modem To Verify Downstream Signals
To verify the downstream signal from a Cisco uBR7200 series router using a Cisco uBR924, follow the procedure below: After the Cisco uBR924 is operational and you have an input signal between 0 and +5 dBmV, use the Step 1 show controller c0 tuner command.
Page 261: Performing Amplitude Averaging
Performing Amplitude Averaging Performing Amplitude Averaging The Cisco uBR7200 series CMTS uses an averaging algorithm to determine the optimum power level for a CM with low carrier-to-noise ratio that is making excessive power adjustments—known as flapping. To avoid dropping flapping CMs, the Cisco uBR7200 series CMTS averages a configurable number of RNG-REQ messages before it makes power adjustments.
Page 262 Default settings are adequate for system operation. Amplitude averaging is an automatic procedure. In Caution general, Cisco does not recommend that you adjust values. Cisco does recommend, however, that you clean up your cable plant should you encounter flapping CMs.
Page 263: Setting Downstream Test Signals
The interface is shut down. Step 2 Stops sending test signals. Router(config-if)# no cable downstream if-output Note Remember to reenable the interface to resume normal operations. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 264: Configuring Prbs Test Signals
Ping DOCSIS is a Cisco patent-pending feature that allows a cable system administrator to quickly diagnose the health of a channel between the Cisco uBR7200 series routers and the cable interface. The technology uses 1/64—the bandwidth of IP ping—and works with CMs that do not have an IP address.
Page 265: Using Cable Interface Debug Commands
When this command is activated, all cable ARP request messages are displayed on the Cisco uBR10000 series router console. When this command is activated, any errors that occur in the cable MAC protocol are displayed on the Cisco uBR10000 series router console.
Page 266: Debug Cable Keyman (For Baseline Privacy Activity)
MAC messages, use the no form of this command. debug cable mac-messages no debug cable mac-messages When this command is activated, messages generated by the cable MAC are displayed on the Cisco Cisco uBR7200 series console. debug cable map To display map debugging messages, use the debug cable map command in privileged EXEC mode.
Page 267: Debug Cable Privacy (For Baseline Privacy)
When this command is activated, ranging messages generated when cable interfaces request or change their upstream frequencies are displayed on the Cisco uBR10000 series router console. debug cable receive (for Upstream Messages) To activate the debugging of upstream messages from cable interfaces, use the debug cable receive command in privileged EXEC mode.
Page 268: Debug Cable Reg (For Modem Registration Requests)
When this command is activated, messages generated because of spectrum group activity are displayed on the Cisco uBR10000 series router console. Spectrum group activity can be additions or changes to spectrum groups, or frequency and power level changes controlled by spectrum groups.
Page 269: Debug Cable Transmit (For Cmts Transmissions)
HFC network are displayed on the Cisco uBR10000 series router console. debug cable transmit (for CMTS Transmissions) To activate the debugging of transmissions from the Cisco uBR10000 series router across the HFC network, use the debug cable transmit command in privileged EXEC mode. To deactivate debugging of cable transmissions, use the no form of this command.
Page 270 Chapter 8 Troubleshooting the System Using Cable Interface debug Commands Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 8-16 OL-2239-03...
Page 271: Appendix
If you do not yet have a Cisco IOS software image, or if you are not sure that the image you have meets...
Page 272: Installing Or Upgrading Cisco Ios Software
When prompted, enter the IP address of the TFTP server as in the following example: Step 4 Address or name of remote host [255.255.255.255]? 172.17.247.195 When prompted, enter the filename of the Cisco IOS software image to be installed, as in the following Step 5 example: Source file name? ubr7200-k8p-mz The image name varies depending on the filename of the image on the TFTP server.
Page 273: Sample Output-Cisco Ubr7200 Series Router
The following documents on Cisco.com contain additional information related to software installation and upgrade: • How to Choose a Cisco IOS Software Release Field Notice: Cisco IOS TFTP Client Cannot Transfer Files Larger than 16MB in Size • Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 274: Copying A System Image From One Device To Another
[11173328 bytes used, 5603888 available, 16777216 total] 16384K bytes of processor board System flash (Read ONLY) Activate the TFTP server on the router that has the Cisco IOS software image that you want to copy. The Step 2 example below provides the command sequence to use:...
Page 275 TFTP server. The IP address of your TFTP server is the address of the router on which you configured the tftp-server Note command. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 276 Appendix A Installing or Upgrading Cisco IOS Software Copying a System Image from One Device to Another Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 277: Appendix
This appendix is designed to assist you with problems that may develop while you are installing Cisco IOS software images using a TFTP or remote copy protocol (rcp) server application. For rcp applications, substitute rcp for TFTP in the instructions.
Page 278: A P P E N D I X B Resolving Common Image Installation Problems
Look for the IP address command under the interface Ethernet statement in your configuration. Example Router> en Password: Router# show run Building configuration... Current configuration: version 11.3 service timestamps debug uptime ....interface Ethernet0 ip address 172.17.3.192 255.255.0.0 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 279: Troubleshooting Problems During Software Transfer
This is an example of the error message: Router# copy tftp flash Address or name of remote host [172.17.0.5]? Source filename [rsp-dsv-mz.112-19.P1.bin]? Destination filename [rsp-dsv-mz.112-19.P1.bin]? Accessing tftp://172.17.0.5/rsp-dsv-mz.112-19.P1.bin... %Error opening tftp://172.17.0.5/rsp-dsv-mz.112-19.P1.bin (No such file or directory) Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 280 2 .. config 631F0D8B 6FB1EC 6 1929 Oct 19 1999 06:15:49 config 3 .. config 631F0D8B 6FB9F8 7 1929 Oct 19 1999 06:16:03 config1 router# copy slot0: slot1: Source filename []? rsp-jsv-mz.120-8.0.2.T Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 281: Troubleshooting Problems By Verifying The Software Image
Troubleshooting Problems by Verifying the Software Image Resolving the show version Command not Displaying Proper Image If the show version command output does not display the Cisco IOS image that you just loaded, perform these steps: Verify that the new Cisco IOS software image has been stored properly. Use the show flash command...
Page 282 Resolving Common Image Installation Problems Resolving the Rxboot Prompt (Router(boot)>) Displaying After Reload Verify that the new Cisco IOS software image has been stored properly. Use the show flash command Step 1 to make sure that the file has been saved, that the size is correct, and that you do not have an invalid checksum message.
Page 283: Appendix
This appendix contains examples of Cisco uBR7200 series universal broadband router configuration files. To view the current configuration of a Cisco uBR7200 series router, enter the show running-config command at the CLI prompt in EXEC mode or privileged EXEC mode.
Page 284 2 dB. The command lines in the sample configuration file beginning with the string cable modulation-profile contain the critical elements necessary to set up a modulation profile in your overall configuration: Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 285 0 spectrum-group 1 cable upstream 0 modulation-profile 3 This section provides a Cisco Release 12.0(8)SC sample configuration file, showing roughly the same capabilities as in the Cisco IOS Release 12.0(5)T image: version 12.0...
Page 286 3 shutdown able upstream 4 description Santa Clara 20-26 cable upstream 4 power-level 0 no cable upstream 4 shutdown cable upstream 5 description Santa Clara 27-33 cable upstream 5 power-level 0 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 287 3 description Santa Theresa 1-5 cable upstream 3 power-level 0 no cable upstream 3 shutdown cable upstream 4 description Santa Theresa 6-11 cable upstream 4 power-level 0 no cable upstream 4 shutdown Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 288 The Cisco uBR7200 series supports 56-bit and 40-bit encryption/decryption; 56 bit is the default. After you choose a CMTS image that supports BPI, BPI is enabled by default for the Cisco uBR7200 series. Key commands that appear in the Cisco uBR7200 series configuration file that denote...
Page 289 CM to access the network. A lifetime key is used to assign a more permanent key to a CM. Each CM that has a lifetime key assigned will request a new lifetime key from the Cisco uBR7200 series router before the current one expires.
Page 290 30 no keepalive cable spectrum-group 1 cable helper-address 1.8.93.100 cable downstream annex A cable downstream modulation 64qam cable downstream frequency 669000000 cable upstream 0 frequency 5008000 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide OL-2239-03...
Page 291: Virtual Private Network (Vpn) Example
To properly transmit and receive encrypted/decrypted traffic, each peer in the VPN must activate encryption/decryption and have matching access key strings. The Cisco uBR7200 series allows encrypted traffic to pass over the cable network (and often the Note Internet) from one peer to the other, based on a routing table setup in its configuration file.
Page 292 Viewing Sample Configuration Files GRE Tunnel Example In the example that follows, a Cisco uBR7200 series connects two branch office networks to their respective head office using a GRE tunnel. Each branch office network is connected to the Cisco uBR7200 series using the cable interface. Each Note customer is assigned a separate subinterface over the physical cable interface.
Page 293 151.145.0.0 255.255.0.0 s0 !(static route to connect to IP Cloud) exec-timeout 0 0 login transport input none line aux 0 line vty 0 4 password lab login scheduler allocate 988 200 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide C-11 OL-2239-03...
Page 294: Ip Telephony Example
Following is a sample voice over IP configuration file for the Cisco uBR7246: version 12.0...
Page 295 Cisco IOS Release 12.1(1a)T1 or higher. The CM must also support VoIP and the clock mode. No configuration tasks are required to use the clock card after it is installed in the Cisco uBR7246 VXR. When the clock card is present, it becomes the midplane TDM clock reference source.
Page 296: Telco Return Example
Telco Return Example Cisco IOS Release CMTS software images that support telco return contain a “t” in the file name. To support telco return, a DOCSIS-compliant telco return cable modem must reside at the subscriber site and support the telco return path.
Page 297 1 phonenum 18005555555 cable telco-return spd 1 username test cable telco-return spd 1 password test router ospf 100 network 10.0.0.0 0.255.255.255 area 0 network 24.1.0.0 0.0.255.255 area 0 ip classless Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide C-15 OL-2239-03...
Page 298 Password Authentication Protocol (PAP) authentication method, or both methods for upstream data transmission. The command lines in the sample configuration file beginning with the string snmp-server contain the critical elements for minimal SNMP-server setup: Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide C-16 OL-2239-03...
Page 299 Note For more detailed information regarding AAA, telco return, SNMP server, and RADIUS dial server software functionality, you can access Cisco IOS software configuration documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com. Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide...
Page 300 Appendix C Viewing Sample Configuration Files Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide C-18 OL-2239-03...
Page 301: Appendix
A-3-97 102.0-108.0 103.25 106.83 107.75 A-2-98 108.0-114.0 109.25 112.83 113.75 A-1-99 114.0-120.0 115.25 118.83 119.75 A-14 120.0-126.0 121.25 124.83 125.75 B-15 126.0-132.0 127.25 130.83 131.75 C-16 132.0-138.0 133.25 136.83 137.75 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide 78-5897-03...
Page 302 Appendix D Frequency Allocation for the Cisco uBR7200 Series Universal Broadband Routers Table D-1 NTSC Cable Television Channels and Relative Frequencies in MHz (continued) Channel Number Bandwidth Video Carrier Color Carrier Audio Carrier D-17 138.0-144.0 139.25 142.83 143.75 E-18 144.0-150.0 145.25...
Page 303 Appendix D Frequency Allocation for the Cisco uBR7200 Series Universal Broadband Routers Table D-1 NTSC Cable Television Channels and Relative Frequencies in MHz (continued) Channel Number Bandwidth Video Carrier Color Carrier Audio Carrier JJ-46 354.0-360.0 355.25 358.83 359.75 KK-47 360.0-366.0 361.25...
Page 304 Appendix D Frequency Allocation for the Cisco uBR7200 Series Universal Broadband Routers Table D-1 NTSC Cable Television Channels and Relative Frequencies in MHz (continued) Channel Number Bandwidth Video Carrier Color Carrier Audio Carrier TTT-82 570.0-576.0 571.25 574.83 575.75 UUU-83 576.0-582.0 577.25...
Page 305 Appendix D Frequency Allocation for the Cisco uBR7200 Series Universal Broadband Routers Table D-1 NTSC Cable Television Channels and Relative Frequencies in MHz (continued) Channel Number Bandwidth Video Carrier Color Carrier Audio Carrier 123-123 786.0-792.0 787.25 790.83 791.75 124-124 792.0-798.0 793.25...
Page 306 Appendix D Frequency Allocation for the Cisco uBR7200 Series Universal Broadband Routers Table D-2 European Cable Television Channels and Relative Frequencies in MHz Channel Number Bandwidth Video Carrier Audio Carrier 47-54 48.25 48.25 54-61 55.25 55.25 61-68 62.25 62.25 111-118 112.25...
Page 307 Appendix D Frequency Allocation for the Cisco uBR7200 Series Universal Broadband Routers Table D-2 European Cable Television Channels and Relative Frequencies in MHz (continued) Channel Number Bandwidth Video Carrier Audio Carrier 350-358 351.25 351.25 358-366 359.25 359.25 366-374 367.25 367.25 374-382 375.25...
Page 308 Appendix D Frequency Allocation for the Cisco uBR7200 Series Universal Broadband Routers Table D-2 European Cable Television Channels and Relative Frequencies in MHz (continued) Channel Number Bandwidth Video Carrier Audio Carrier 662-670 663.25 663.25 670-678 671.25 671.25 678-686 679.25 679.25 686-694 687.25...
Page 309: Appendix
Series Universal Broadband Routers The following information is found in this appendix: Configuration Bit Meanings, page E-1 • Displaying the Configuration Register While Running Cisco IOS, page E-5 • Displaying the Configuration Register While Running ROM Monitor, page E-6 •...
Page 310: Bits
Stays at the system bootstrap prompt (ROM monitor) on a reload or power cycle Boots the boot helper image as a system image Full boot process, which loads the Cisco IOS image into Flash memory Specifies a default filename for booting over the network from a TFTP server The boot field specifies a number in binary.
Page 311: Bit 6
The server creates a default filename as part of the automatic configuration processes. To form the boot filename, the server starts with Cisco and links the octal equivalent of the boot field number, a dash, and the image name.
Page 312: Bit 10 And Bit 14
<zeros><zeros> <net><zeros> <net><ones> The console line rate on Cisco universal broadband routers is fixed at 9600 and cannot be changed. For Note additional information about configuring baud rates, refer to oneor more of these documents on Cisco.com: “Using the ROM Monitor on the Cisco CMTS” in the Cisco Broadband Cable Command Reference Guide: •...
Page 313: Bit 13
Displaying the Configuration Register While Running Cisco IOS The configuration register can be viewed by using the show version or show hardware command. The following example illustrates output from the show version command for a Cisco uBR7246 VXR router with the cable clock card installed:...
Page 314: Displaying The Configuration Register While Running Rom Monitor
Appendix E Configuration Register Information for the Cisco uBR7200 Series Universal Broadband Routers Displaying the Configuration Register While Running ROM Monitor Displaying the Configuration Register While Running ROM Monitor If the bootstrap prompt “>”, the o command displays the virtual configuration register currently in effect.
Page 315: Setting The Configuration Register While Running Rom Monitor
Appendix E Configuration Register Information for the Cisco uBR7200 Series Universal Broadband Routers Setting the Configuration Register While Running ROM Monitor Setting the Configuration Register While Running ROM Monitor If the prompt is “>”, the or0x<value> command sets the configuration register. See the following sample output: >o/r 0x2102...
Page 316 Appendix E Configuration Register Information for the Cisco uBR7200 Series Universal Broadband Routers Setting the Configuration Register While Running ROM Monitor Cisco 7200 VXR Installation and Configuration Guide OL-5013-02...
Page 317: I N D E X
Proxy broadcast echo 3-34 3-28 AutoInstall facility overview 1-31 Autoinstall facility cable commands configuring Cisco uBR7200 series with 2-10 cable bundle master 3-31 cable device 1-129 cable dhcp-giaddr 1-59 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide IN-1 OL-2239-02...
Page 318 Cisco Network Registrar, see CNR 3-26 cable upstream scrambler clear commands 3-17 cable upstream time-adjust clear cable host 3-17 1-129 cable interface clear cable modem counters Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide IN-2 OL-2239-02...
Page 319 2-15 DOCSIS 1.1 copy running start 1-16 Baseline Privacy Interface Plus (BPI+) copy slot certification for uBR7246VXR on Cisco IOS release 12.2(4)BC1 copy tftp flash A-2, A-4 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide IN-3 OL-2239-02...
Page 320 High Availability Support for Encrypted IP dynamic ranging 3-19 Multicast 1-71 Dynamic SID/VRF Mapping Support 1-126 host-to-host communication (Proxy ARP) 3-28 HSRP (Hot Standby Router Protocol) 1-126 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide IN-4 OL-2239-02...
Page 321 (KEK) 2-30 PHS (Payload Header Suppression) configuring 3-33 overview 1-62 ping docsis command 8-10 MAC (Media Access Control) port adapters Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide IN-5 OL-2239-02...
Page 322 1-17 rate limiting SNMP features 1-109 downstream 3-10 spectrum management 1-119 upstream 3-26, 3-27 status, cable interface 2-26 reboot, router downstream 1-19 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide IN-6 OL-2239-02...
Page 323 3-12, 3-13 backoff values 3-19, 3-20 cable interface 3-11, 3-22 channel width, configuring 3-21 differential encoding 3-13, 3-14 FEC (forward error correction) 3-14 frequency 3-22, 3-23 input power level 3-24 Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide IN-7 OL-2239-02...
Page 324 Index Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide IN-8 OL-2239-02...

This manual is also suitable for:

Ubr7223 - ubr 7223 modular expansion base Ubr7200 series

Cisco 7246VXR - uBR Router Software Configuration Manual

Table of Contents

CHAPTER 1 Overview of Cisco Ubr7200 Series Software

Docsis 1.0 Feature Support

High Availability Features

IP Routing Features

Management Features

Multicast Features

Security Features

Snmp Features and Enhancements

Spectrum Management and Advanced Spectrum Management Features

VLAN Features

WAN Optimization and Services Features

CHAPTER 2 Configuring the Cable Modem Termination System for the First Time

CHAPTER 3 Configuring Cable Modem Interface Features

Chapter 4 Configuring DOCSIS Baseline Privacy Interface on the Cisco Ubr7200 Series

CHAPTER 5 Managing Cable Modems on the Hybrid Fiber-Coaxial Network

CHAPTER 6 Configuring Basic Broadband Internet Access

CHAPTER 7 Overview of the Cisco Network Registrar for the Cisco Ubr7200 Series

Chapter 8 Troubleshooting the System

Appendix

Appendix

Appendix

Appendix

Appendix

Quick Links

Configuration Guide

Chapters

Troubleshooting

Related Manuals for Cisco 7246VXR - uBR Router

Summary of Contents for Cisco 7246VXR - uBR Router