Cisco uBR10012 Universal Broadband Router Software Configuration Guide Cisco IOS® Software - 12.3 BC, 12.2 BC, 12.2 CY November 2006 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.
C ON TE NT S Preface ix Document Revision History Purpose ix ix Audience x Document Organization Conventions x xi Terms and Acronyms Additional References Standards xv MIBs xvi xii xiv Obtaining Documentation xvi World Wide Web xvi Documentation CD-ROM xvi Ordering Documentation xvii Documentation Feedback xvii Obtaining Technical Assistance xvii Cisco.
Contents DOCSIS 1.0 Feature Support 1-19 DOCSIS 1.0+ Feature Support 1-28 DOCSIS 1.
Contents Assigning the Downstream Channel ID 3-6 Setting the Downstream Helper Address 3-6 Setting the Downstream Interleave Depth 3-7 Setting the Downstream Modulation 3-8 Setting the Downstream MPEG Framing Format 3-9 Setting Downstream Rate Limiting and Traffic Shaping 3-9 Configuring the Upstream Cable Interface 3-11 Activating Upstream Admission Control 3-12 Activating Upstream Differential Encoding 3-13 Activating Upstream Forward Error Correction 3-14 Activating the Upstream Ports 3-14 Activating
Contents Configuring Maximum Hosts Attached to a CM Configuring Per-Modem Filters 4-9 Configuring Sync Message Interval CHA PTER 5 4-9 4-10 Configuring Basic Broadband Internet Access 5-1 Overview of Basic Broadband Internet Access 5-1 Recommended Basic Configuration for High-Speed Internet Access Basic Internet Access Sample Configuration File CHA PTER 6 Troubleshooting the System 5-2 5-3 6-1 Understanding show Command Responses 6-2 Using a Headend CM to Verify Downstream Signals Perform
Contents APPENDIX A DOCSIS and CMTS Architectural Overview A-1 DOCSIS Specification Summary A-1 Overview of DOCSIS NTSC Cable Plants A-2 QoS Policy Propagation on Border Gateway Protocol A-3 Overview of DOCSIS-Compliant Downstream Signals A-3 Overview of DOCSIS-Compliant Upstream Signals A-4 Overview of DOCSIS Two-Way Server Requirements A-5 CMTS Traffic Engineering APPENDIX B A-5 Configuration Register Information for the Cisco uBR10012 Universal Broadband Router Configuration Bit Meanings Bits 0–3
Contents Cisco uBR10012 Universal Broadband Router Software Configuration Guide viii OL-1520-06
Preface This preface explains the objectives, software options, intended audience, and organization of the Cisco uBR10012 Universal Broadband Router Software Configuration Guide, which describes the following release trains: • Cisco IOS Release 12.1 BC, 12.2 BC, and 12.3 BC • Cisco IOS Release 12.2 CY This preface also defines this document’s conventions for conveying instructions and information.
Preface Audience Audience This guide is intended for system administrators and support engineers who configure and maintain the Cisco uBR10012 router. Many different delivery models exist for Cisco uBR10000 series equipment: • In smaller networks, a single service provider manages all equipment and infrastructure. • In larger networks, multiple service operators (MSOs) and ISPs share responsibility for provisioning and managing the cable plant and IP network.
Preface Conventions Table 2 Guide Contents and Organization (continued) Title Description Chapter 5, “Configuring Basic Broadband Internet Access” Provides a recommended basic configuration for high-speed Internet access and a basic Internet access sample configuration file. Chapter 6, “Troubleshooting the System” Provides troubleshooting instructions for the configuration of the Cisco uBR10000 series CMTS.
Preface Terms and Acronyms Note This symbol means reader take note. Notes contain helpful suggestions or references to material not covered in the publication. Tip This symbol means the following are useful tips. Timesaver Caution This symbol means the described action saves time. You can save time by performing the action described in the paragraph. This symbol means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.
Preface Terms and Acronyms • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • DSR—data set ready DSU—data service unit DTE—data terminal equipment DTR—data terminal ready EMC—electromagnetic compliance EMI—electromagnetic interference ESD—electrostatic discharge FRU—field-replaceable unit (router components that do not require replacement by a Cisco certified service provider) FTP—foil twisted-pair HCCP—Hot Standby Connection-to-Connection Protocol HDLC—High-Le
Preface Additional References • • • • • • • • • • • • • • • • • • • • RP—route processor RPR(+)—Route Processor Redundancy (plus) RTS—Request To Send SA—spectrum analyzer SDRAM—synchronous dynamic random-access memory SFID—Service Flow Identifier SID—Service ID SIMM—single in-line memory module SM—subscriber modem or spectrum manager SMI—single-mode intermediate reach SNMP—Simple Network Management Protocol TCP/IP—Transmission Control Protocol/Internet Protocol TDM—time-division multiplexing TFTP—Trivial
Preface Additional References Related Topic Document Title Cisco uBR10012 Software, Configuration and Features • Cisco IOS Command Reference • Additional Cable/Broadband Information Resources • Cisco uBR10012 Universal Broadband Router Release Notes http://www.cisco.com/univercd/cc/td/doc/product/cable/ubr10k/ub10krns/index.htm • Cisco uBR10012 Universal Broadband Router Software Configuration Guide http://www.cisco.com/univercd/cc/td/doc/product/cable/ubr10k/ubr10012/scg/index.
Preface Obtaining Documentation MIBs The Cisco uBR10012 router supports the following categories of Management Information Bases (MIBs): • Cable-specific MIBs—Provide information about the cable interfaces and related information on the Cisco uBR10012 router. They include both Data-over-Cable Service Interface Specifications (DOCSIS)-specific MIBs and enterprise MIBs specific to Cisco.
Preface Obtaining Technical Assistance Ordering Documentation Cisco documentation is available in the following ways: • Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from the Networking Products MarketPlace: http://www.cisco.com/cgi-bin/order/order_root.pl • Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store: http://www.cisco.com/go/subscription • Nonregistered Cisco.
Preface Obtaining Technical Assistance • Order Cisco learning materials and merchandise • Register for online skill assessment, training, and certification programs You can self-register on Cisco.com to obtain customized information and service. To access Cisco.com, go to the following URL: http://www.cisco.com Technical Assistance Center The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution.
Preface Obtaining Technical Assistance Cisco TAC Escalation Center The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority level 2; these classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer will automatically open a case.
Preface Obtaining Technical Assistance Cisco uBR10012 Universal Broadband Router Software Configuration Guide xx OL-1520-06
C H A P T E R 1 Overview of Cisco uBR10012 Universal Broadband Router Software This chapter describes the Cisco uBR10012 Universal Broadband Router Cable Modem Termination System (CMTS), supported service offerings, software, and related hardware features.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Cisco IOS Releases and Images for the Cisco uBR10012 Router Cisco IOS Releases and Images for the Cisco uBR10012 Router The Cisco uBR10012 router supports the following Cisco IOS methods and release trains: • Operational Overview • Cisco IOS Software Location • Determining Your Cisco IOS Software Release • Upgrading to a New Software Release • 12.3 BC Release Train and Images • 12.2 BC Release Train and Images • 12.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Cisco IOS Releases and Images for the Cisco uBR10012 Router Upgrading to a New Software Release An upgrade is an order placed for a Cisco IOS® feature set that contains more functionality than the one that you are replacing. And upgrade is not an update. An update consists of installing a more recent version of the SAME feature set.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Cisco IOS Releases and Images for the Cisco uBR10012 Router Table 2 displays the memory recommendations of the Cisco IOS feature sets for the Cisco uBR10012 universal broadband router for Cisco IOS Release 12.2(4)BC1b. Cisco uBR10012 universal broadband routers are available with a 48-MB or 120-MB Type II PCMCIA Flash memory card. Table 2 Memory Recommendations for the Cisco uBR10012 Routers, Cisco Release 12.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Cisco uBR10012 Universal Broadband Router Chassis Overview Cisco uBR10012 Universal Broadband Router Chassis Overview The Cisco uBR10012 router provides a cost-effective, scalable, and industry-proven CMTS, optimized for aggregating traffic at the edge of the cable network. It has eight broadband aggregation slots and four WAN backhaul slots.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Cisco uBR10012 Universal Broadband Router Chassis Overview Cisco uBR10012 Router Slot Numbering The Cisco uBR10012 router contains 16 card slots total for the following cards: • Front Access (refer to Figure 1): – One or two PRE1 or PRE2 modules (two modules for redundant configuration) • Rear Access (refer to Figure 2): – Eight cable interface line cards – Four network uplink line cards (either OC-12 POS or GigE) – One or two TC
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Cisco uBR10012 Universal Broadband Router Chassis Overview Tip The Fast Ethernet interface on the backup PRE module is not used unless the primary PRE module fails and the backup PRE module is activated. When the backup PRE module becomes the active PRE module, its FastEthernet interface automatically becomes the active FastEthernet interface at slot 0/0.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Cisco uBR10012 Universal Broadband Router Chassis Overview Hardware Supported on the Cisco uBR10012 Router Cisco IOS Release 12.3(9a)BC supports the following hardware on the Cisco uBR10012 router. This and earlier descriptions of supported hardware are available in the release notes for your respective Cisco IOS release.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Cisco uBR10012 Universal Broadband Router Chassis Overview Table 4 Cisco uBR10012 Universal Broadband Router Supported Hardware Performance Routing Engine (PRE1 or PRE2) One PRE1 or PRE2 module performs layer 2 and layer 3 packet processing, as well as routing and system management functions. Two PRE modules can be installed for redundancy.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Supported Software Features for the Cisco uBR10012 Router This section summarizes Cisco uBR10012 router software features for all supported Cisco IOS Release trains, and directs you to additional configuration information for each feature.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Table 5 Cisco uBR10012 Router Features by Cisco IOS Release (continued) Feature Supporting Cisco IOS Releases DOCSIS 1.1 CM Compatibility 12.2(1)XF1 and later 12.2 XF, 12.2 BC and 12.3 BC releases DOCSIS 1.1 Feature Support DOCSIS 1.1 Baseline Privacy Interface Plus Features 12.2(1)XF1 and later 12.2 XF, 12.2 BC and 12.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Table 5 Cisco uBR10012 Router Features by Cisco IOS Release (continued) Feature Supporting Cisco IOS Releases HCCP N+1 Redundancy Supporting DOCSIS 1.1 for the Cisco CMTS 12.2(1)XF1 and later 12.2 XF, 12.2 BC and 12.3 BC releases HCCP Timing and Error Enhancements in HCCP Redundancy Show Commands 12.3(13a)BC and later 12.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Table 5 Cisco uBR10012 Router Features by Cisco IOS Release (continued) Feature Supporting Cisco IOS Releases Broadband Internet Access 12.2(1)XF1 and later 12.2 XF, 12.2 BC and 12.3 BC releases Cable Interface Bundling 12.2(1)XF1 and later 12.2 XF, 12.2 BC and 12.3 BC releases CNEM Compliance 12.3(17a)BC and later 12.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Table 5 Cisco uBR10012 Router Features by Cisco IOS Release (continued) Feature Supporting Cisco IOS Releases PacketCable Emergency 911 Cable Interface Line Card Prioritization 12.3(13a)BC and later 12.3 BC releases PacketCable Emergency 911 Services Listing and History 12.3(13a)BC and later 12.3 BC releases Packetcable Multimedia for the Cisco CMTS 12.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Cisco uBR10012 Router Configuration Tools The Cisco uBR10012 Universal Broadband Router provides you with the following configuration tools, allowing you flexibility in choosing your configuration method: • AutoInstall • Cable Interface Setup Facility • Cisco Network Registrar • Configuration Mode (Command Line Interface Configuration) • Extended Setup Facility AutoI
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Cisco IOS Release 12.3 BC Command-line Enhancements This section describes general Cisco IOS commands introduced or enhanced in Cisco IOS Release 12.3(9a)BC and later releases in the 12.3 BC release train. Also refer to additional feature descriptions for new or enhanced commands that support specific new features. • Cisco IOS Release 12.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router To enable packets from trusted source MAC addresses in DHCP, use the cable trust command in global configuration mode. To remove a trusted MAC address from the MAC exclusion list, use the no form of this command. Removing a MAC address from the exclusion list subjects all packets from that source to standard DHCP source verification.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router DOCSIS 1.0 Feature Support The Cisco uBR10012 router and associated Cisco IOS software support multiple DOCSIS 1.0 enhancements, extensions, and features. • DOCSIS 1.0 Baseline Privacy Interface • DOCSIS 1.0 Concatenation Override • DOCSIS 1.0 Configuration File Settings • DOCSIS 1.0 Constant Bit Rate Extension • DOCSIS 1.0 MAC Driver • DOCSIS 1.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Note To conform with a recent change in the DOCSIS 1.0 Baseline Privacy Interface (BPI) Specification, Cisco IOS Release 12.2(8)BC1 and later releases require that the Baseline Privacy Configuration Settings Option (Type 17) must be included in the DOCSIS configuration file for all DOCSIS 1.0 cable modems attempting to register for BPI encryption.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router DOCSIS 1.0 Configuration File Settings Refer to these sections for additional information about DOCSIS configuration files: • “DOCSIS 1.0 Constant Bit Rate Extension” section on page 20 • “DOCSIS 1.0 Traffic Shaping and Rate Limiting Features” section on page 23 • “DOCSIS 1.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router In DOCSIS 1.0, the CM explicitly requests upstream bandwidth—either in contention or piggyback to grant minislots—for every single packet it wants to send upstream. This limits the maximum upstream data throughput that a CM can receive due to the inherent “request to grant” round-trip latency each packet incurs on the cable system.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router DOCSIS 1.0 Multi SID Support This feature allows the Cisco uBR10012 router to support the definition of multiple SIDs on the upstream. This includes multiple service classes per cable interface, enabling administrators to delegate higher priority as required.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • Maximum downstream rate in bps • Maximum transmit burst length • ToS overwrite byte Using these service class profiles, you can define a guaranteed-rate service queue to store bandwidth requests from CMs subscribing to a class with minimum upstream rate on the upstream channel, and a best-effort service queue for CMs subscribing to a class with no minimum upstream rate
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router DOCSIS 1.0 per SID Bandwidth Request and Grant Counters This feature promotes better control of higher-priority traffic, permitting per-SID bandwidth requests and grants. Profiles can be customized for scheduling parameters required at subscriber sites for the service offering.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Syntax Description burst-size 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.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router For example, a DOCSIS 1.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router 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. In particular, the DOCSIS 1.0+ enhancements provide basic Voice-over IP (VoIP) service over the DOCSIS link. Cisco DOCSIS 1.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • DOCSIS 1.1 Dynamic MAC Messages • DOCSIS 1.1 Enhanced Registration • DOCSIS 1.1 Fragmentation and Reassembly • DOCSIS 1.1 Layer 2 Fragmentation • DOCSIS 1.1 MAC Scheduler • DOCSIS 1.1 Payload Header Suppression and Restoration • DOCSIS 1.1 Quality of Service Support • DOCSIS 1.1 Rate Limiting and Traffic Shaping • DOCSIS 1.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router 40-bit and 56-bit Baseline Privacy Data Encryption Standard (DES) The Cisco uBR10012 router supports 40-bit and 56-bit encryption and decryption. When encryption and decryption is enabled, 56-bit is the default.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Note The cable source-verify [dhcp] command (for cable interfaces) specifies that DHCP lease query requests are sent to verify any unknown source IP address found in upstream data packets. Upstream Address Verification requires a DHCP server that supports the new LEASEQUERY message type. Cisco Network Registrar supports the LEASEQUERY message type in Cisco IOS Release 3.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Examples Router# show cable modem MAC Address IP Address I/F 0050.04f9.edf6 0050.04f9.efa0 0030.d002.41f5 0030.d002.4177 0030.d002.3f03 0050.04f9.ee24 0030.d002.3efd 0030.d002.41f7 0050.04f9.eb82 0050.f112.3327 0030.d002.3f8f 0001.64f9.1fb9 0030.d002.417b 0090.9600.6f7d 0010.9501.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router DOCSIS 1.1 Downstream Packet Classifier Packet classifiers help to map packets into DOCSIS service flows. The CMTS supports downstream IP packet classifiers.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router DOCSIS 1.1 Fragmentation and Reassembly The MAC scheduler fragments data slots to fill the gaps in-between Unsolicited Grant Service (UGS) slots. Fragmentation reduces the jitter experienced by voice packets when large data packets are transmitted on the shared upstream channel and preempt the UGS slots used for voice.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Commands Router# show interface cable x/0 service-flow [sfid] phs Router# debug cable error Router# debug cable phs For additional command information, refer to the Cisco Broadband Cable Command Reference Guide on Cisco.com. DOCSIS 1.1 Quality of Service Support Enhanced quality of service (QoS) gives priority for real-time traffic such as voice and video. • The DOCSIS 1.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Each service flow has a set of QoS attributes associated with it. These QoS attributes define a particular class of service and determine characteristics such as the maximum bandwidth for the service flow and the priority of its traffic.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router DOCSIS 1.1 Rate Limiting and Traffic Shaping Cisco IOS Release 12.2XF software supports rate limiting per DOCSIS-1.0-99, which limits the data rate to and from a CM; the MAC scheduler supports traffic-shaping capabilities for downstream and upstream traffic.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • Restricted QoS class assignment—Allows a CMTS administrator to override the class of service provisioned for a CM. When this feature is enabled, the user-defined QoS profile is enforced on the CM attempting to register with the CMTS, regardless of the provisioned class of service.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router The CMTS administrator defines and pushes DHCP and DOCSIS configuration files to appropriate servers so that each CM or CM in an STB on the network, when initialized, can transmit a DHCP request, receive its IP address, obtain its TFTP and ToD server addresses, and download its DOCSIS configuration file (and updated software image, if needed).
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router 6d17h:580447.466 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 94/79753900/85754200/6000300 6d17h:580447.470 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 95/175758700/211760500/6000300 6d17h:580447.474 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 96/121756000/169758400/6000300 6d17h:580447.478 CMAC_LOG_WILL_SEARCH_DS_FREQUENCY_BAND 97/217760800/397769800/6000300 6d17h:580447.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router 6d17h:580453.904 CMAC_LOG_TOD_REPLY_RECEIVED 3165851032 6d17h:580453.910 CMAC_LOG_TOD_COMPLETE 6d17h:580453.912 CMAC_LOG_STATE_CHANGE security_association_state 6d17h:580453.916 CMAC_LOG_SECURITY_BYPASSED 6d17h:580453.918 CMAC_LOG_STATE_CHANGE configuration_file_state 6d17h:580453.920 CMAC_LOG_LOADING_CONFIG_FILE gold.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Optional Upstream Scheduler Modes With this feature, the user is able to select either Unsolicited Grant Services (UGS) or Real Time Polling Service (rtPS) scheduling types, as well as packet-based or TDM-based scheduling. Low latency queueing (LLQ) emulates a packet-mode-like operation over the Time Division Multiplex (TDM) infrastructure of DOCSIS.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • High Availability Support for Encrypted IP Multicast • Shutdown and No Shutdown Enhancement for Cable Interfaces Automatic Revert Feature for HCCP N+1 Redundancy Switchover Events Cisco IOS release 12.3(13a)BC introduces the Auto-Revert feature for the Cisco uBR10012 router, to further enhance HCCP N+1 Redundancy on the Cisco CMTS.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router DSX Messages and Synchronized PHS Information Cisco IOS Release 12.3(17a)BC introduces support for PHS rules in a High Availability environment.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router previous Cisco IOS releases supporting 7+1 Redundancy. Global configuration makes this High Availability feature easier to configure and use. 7+1 Redundancy is the default redundancy scheme for the Cisco uBR10012 router in Cisco IOS Release 12.3(17a)BC.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router For additional information about this feature and HCCP N+1 Redundancy on the Cisco CMTS, refer to these documents on Cisco.com: • “N+1 Redundancy for the Cisco Cable Modem Termination System,” Cisco CMTS Feature Guide http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide_chapter09186a00 8015096c.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router For additional information about this feature and HCCP N+1 Redundancy on the Cisco CMTS, refer to these documents on Cisco.com: • “N+1 Redundancy for the Cisco Cable Modem Termination System,” Cisco CMTS Feature Guide http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide_chapter09186a00 8015096c.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Additional Information Refer also the Service Independent Interceopt (SII) feature in this document. For additional information, refer to the following documents on Cisco.com: • Configuring COPS for RSVP, Cisco IOS Versions 12.2 and 12.3 http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter 09186a00800b75c9.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Cable Monitor Support for Cisco MC5x20U-D and Cisco MC28U Broadband Processing Engines Cisco IOS Release 12.3(13a)BC introduces support for the Cable Monitor feature for the Cisco MC5x20U-D broadband processing engine (BPE) and the Cisco MC28U cable interface line card.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router output flow-control is XON, input flow-control is XON ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:08, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/5/0 (size/max/drops/flushes); Total output drops:361 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute out
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router COPS TCP Window Size for the Cisco CMTS This feature allows you to override the default TCP receive window size that is used by COPS processes. This setting can be used to prevent the COPS server from sending too much data at one time. Cisco IOS Release 12.3(13a)BC supports this function with the cops tcp window-size command in global configuration mode.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Usage Guidelines Examples • The cops ip dscp command allows the Cisco router to re-mark the COPS packets for either incoming or outbound connections. • This command affects all TCP connections with all COPS servers. • This command does not affect existing connections to COPS servers.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router cops tcp window-size 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.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Packet Intercept This feature allows you to intercept cable network activities according to the interface MAC address. To allow the CMTS to forward all traffic to and from a particular CM to a data collector located at particular User Datagram Protocol (UDP) port, use the cable intercept command in cable interface configuration mode.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Service Independent Intercept (SII) Support Cisco CMTS supports the Communications Assistance for Law Enforcement Act (CALEA) for voice and data. Cisco IOS Release 12.3(13a)BC introduces support for Service Independent Intercept (SII) on the Cisco uBR10012 CMTS.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • Cable Monitor and Intercept Features for the Cisco CMTS http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide_chapter09186a00 8019b571.html • PacketCable and PacketCable Multimedia on the Cisco CMTS http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide_chapter09186a00 8019b576.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Restrictions • The multicast definitions are per-bundle, not per interface. This means that all downstreams in a bundle share the same multicast to QoS association. The downstreams will create their own service flows according to the same QoS parameters.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router IP Routing Features The Cisco uBR10012 router offers you several features to assist with IP routing configuration and performance.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Syntax Description reply-accept number window-size request-send number window-size Configures the cable interface to accept only the specified number of ARP reply packets every window-size seconds for each active Service ID (SID) on that interface. The cable interface drops ARP reply packets for a SID that would exceed this number.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Host-to-Host Communication (Proxy Address Resolution Protocol) Proxy Address Resolution Protocol (ARP) allows the Cisco uBR10012 router to issue ARP requests on behalf of CMs on the same cable network subnet. Proxy ARP can help machines on a subnet reach remote subnets without configuring routing or a default gateway.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • set ip tos value • show route-map [map-tag] For more information on PBR, refer to the "Configuring Policy-Based Routing" chapter in the Cisco IOS Quality of Service Solutions Configuration Guide, Release 12.2 at the following URL: http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt1/qcfpbr.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • EtherChannel Support on the Cisco uBR10012 Universal Broadband Router • Management Information Base (MIB) Changes and Enhancements • MIBs Changes and Updates in Cisco IOS Release 12.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • Bandwidth utilization for upstream and downstream—Admission Control monitors upstream and downstream bandwidth utilization, and associated service classes, whether for data or dynamic service traffic. Cisco IOS Release 12.3(13a)BC introduces new configuration, debug and show commands for Admission Control on the Cisco CMTS.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Syntax Description cpe-num Specifies the number of CPEs. Valid range is 1 to 254. For additional command information, refer to the Cisco Broadband Cable Command Reference Guide and to the Cisco Cable Modem Termination System Feature Guide, both on Cisco.com. DOCSIS 2.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router A-DSG 1.1 introduces powerful support for DOCSIS 1.1 and DOCSIS 2.0, and the latest DOCSIS DSG specifications. The benefits provided by A-DSG include the following: • Retains the essential nature of out of band (OOB) messaging, but moves it to a modern technology base.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Prerequisites for DSG 1.1 • Cisco IOS release 12.3(13a)BC or a later 12.3 BC release are required. • Cisco DSG 1.1 is supported on the Cisco uBR10012 router with PRE1 or PRE2 performance routing engine modules. • Cisco DSG 1.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router For additional DSG 1.2 information, refer to the following documents on Cisco.com: • Advanced-mode DOCSIS Set-Top Gateway 1.2 for the Cisco CMTS http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guides_list.html • Cisco CMTS Universal Broadband Router MIB Specifications Guide, Rel 12.3(17a)BC2 http://www.cisco.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router DCC in DOCSIS 1.1 dynamically changes cable modem upstream or downstream channels without forcing a cable modem to go offline, and without re-registration after the change. DCC supports four different initializations, instead of one, as in earlier DOCSIS support.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • • • • • • Guard time size Last code word shortened or lengthened Maximum burst size (see also Preamble length and unique word length Scrambler enable and disable Scrambler seed value For additional information about configuring dynamic upstream modulation and modulation profiles, refer to the chapter titled Spectrum Management for the Cable Modem Termination System in the
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • A standards-based technology (SNMP) for monitoring faults and performance on the router. • Support for SNMP versions (SNMPv1, SNMPv2c, and SNMPv3). • Notification of faults, alarms, and conditions that can affect services. For additional information, refer to the following document on Cisco.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router CISCO-CABLE-QOS-MONITOR MIB Cisco IOS Release 12.3(9a)BC introduces additional features for the CISCO-CABLE-QOS-MONITOR MIB, including the following: Note • Clarified the descriptions of a number of objects. • Added a number of objects in the ccqmCmtsEnforceRuleTable to support DOCSIS 1.1 and DOCSIS 2.0 cable modems and to support peak and off-peak monitoring.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Note • ccsFlapListMaxSize—Reflects the flap list size, as configured by the cable flap-list size command. • ccsFlapListCurrentSize—Reflects the current size of the flap list for each MAC domain (downstream). Refer to the Cisco CMTS Universal Broadband Router MIB Specifications Guide on Cisco.com for additional information and MIBs constraints.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Note Refer to the Cisco CMTS Universal Broadband Router MIB Specifications Guide on Cisco.com for additional information and MIBs constraints. Pre-equalization Control for Cable Modems Cisco IOS Release 12.3(17a)BC introduces pre-equalization control for cable modems on a per-modem basis.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Command Modes Global configuration mode Command History Release Modification 12.3(17a)BC This command was introduced to the Cisco uBR10012 router and the Cisco uBR7246VXR router.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router clc_4_0# show running-config | inc oui cable pre-equalization exclude oui 00.09.24 clc_4_0# After either of these exclusion methods for pre-equalization are configured, you can verify that all ranging messages do not include pre-equalization data.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router For additional information, refer to the following document on Cisco.com: • Usage-Based Billing for the Cisco CMTS http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide09186a00801ef1d 7.html SFID Support for Multicast and Cable Interface Bundling Cisco IOS Release 12.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Spectrum Management Spectrum management is a software and hardware feature provided in the CMTS so that the CMTS may sense both downstream and upstream plant impairments, report them to a management entity, and automatically mitigate them where possible.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Note For additional information and examples, see “Configuring Proactive Channel Management” and “Verifying the Spectrum Management Configuration” in Spectrum Management for the Cisco CMTS, at the following URL : http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cmtsfg/ufg_spec.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Subscriber Traffic Management (STM) Version 1.1 Cisco IOS Release 12.3(9a)BC introduces support for Subscriber Traffic Management (STM) through Version 1.1 on the Cisco uBR10012 universal broadband router. STM 1.1 supports DOCSIS 1.1-compliant cable modems.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • PacketCable Emergency 911 Services Listing and History • Packetcable Multimedia for the Cisco CMTS PacketCable 1.0 With CALEA Cisco IOS Release 12.3(9a)BC introduces DOCSIS 1.1 support for PacketCable 1.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • PacketCable and PacketCable Multimedia on the Cisco CMTS http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide_chapter09186a00 8019b576.html • Cisco PacketCable Primer White Paper http://www.cisco.com/en/US/netsol/ns341/ns121/ns342/ns343/networking_solutions_white_paper 09186a0080179138.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Cable6/0/1 Cable7/0/0 Cable7/0/1 Cable8/1/0 Cable8/1/1 Cable8/1/2 Cable8/1/3 Cable8/1/4 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 1 1 0 0 The following command example illustrates the change on the Cisco uBR10012 router when this Emergency 911 calls ends: Router# show cable calls Interface Cable5/0/0 Cable5/0/1 Cable5/1/0 Cable5/1/1 Cable5
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Cable5/1/1 Cable5/1/2 Cable5/1/3 Cable5/1/4 Cable6/0/0 Cable6/0/1 Cable7/0/0 Cable7/0/1 Cable8/1/0 Cable8/1/1 Cable8/1/2 Cable8/1/3 Cable8/1/4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 Total 0 0 0 1 The following example illustrates the show cable modem calls command on the Cisco uBR10012 router over a pe
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Cable Modem Call Status Flags: H: Active high priority calls R: Recent high priority calls V: Active voice calls (including high priority) MAC Address IP Address I/F Prim Sid C8/1/1/U0 5 C8/1/1/U0 18 0000.ca36.f97d 10.10.155.25 0000.cab7.7b04 10.10.155.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router – Gate-Info – Gate-Info-Ack – Gate-Info-Err – Gate-Delete – Gate-Delete-Ack – Gate-Delete-Err – State-Report • Different COPS client and UDP port for COPS sessions—PCMM uses a different COPS client type than does basic PacketCable, and PCMM uses a different UDP port for its COPS sessions.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router For additional information about PacketCable and PacketCable Multimedia on the Cisco CMTS, refer to the following documents on Cisco.com: • PacketCable and PacketCable Multimedia on the Cisco CMTS http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide_chapter09186a00 8019b576.html • Cisco PacketCable Primer White Paper http://www.cisco.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Address Verification The Cisco uBR10012 router supports verification of cable interface and PC addresses to ensure that the cable interface service ID (SID) and MAC addresses are consistent. This security feature helps ensure that IP addresses are not spoofed. A PC behind a cable interface is assigned an IP address from the DHCP server.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router • Cisco uBR7246VXR universal broadband router • Cisco uBR10012 universal broadband router The Dynamic Shared Secret feature automatically creates a unique DOCSIS shared secret on a per-modem basis, creating a one-time use DOCSIS configuration file that is valid only for the current session.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router http://www.cisco.com/univercd/cc/td/doc/product/cable/trblshtr/cbt32/cbt32rn.htm • Spectrum Management for the Cisco CMTS http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cmtsfg/ufg_spec.htm • Subscriber Traffic Management for the Cisco CMTS http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122bc/122b c_15/ubsubmon.htm CBT 3.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router ranging slots at roughly the same time. Without theCisco uBR10012 router algorithms enabled, CMs can repeatedly collide and back off a random number of initial ranging slots independently before trying again.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Virtual Interfaces The Cisco uBR10012 router supports the following virtual interface features, primarily in the Cisco IOS 12.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router http://www.cisco.com/en/US/products/hw/cable/ps2217/products_feature_guide_chapter09186a00 8015096c.html • Configuring Virtual Interfaces on the Cisco uBR10-MC5X20S/U Card http://www.cisco.com/en/US/products/hw/modules/ps4969/products_feature_guide09186a00801b 17cd.html Virtual Interface Bundling on the Cisco uBR10-MC5X20S/U BPE Cisco IOS Release 12.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router VLAN Features Cisco IOS IEEE 802.1Q provides support for IEEE 802.1Q encapsulation for Virtual LANs (VLANs). VLANs can be implemented with Cisco IOS platforms in environments where the IEEE 802.1Q encapsulation standard is required. With the introduction of the Cisco IOS IEEE 802.1Q Support feature, Cisco IOS supported 802.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Generic Route Encapsulation (GRE) is a tunneling protocol that can encapsulate a variety of packet types inside IP tunnels, creating a virtual point-to-point link to Cisco routers at remote points over an IP internetwork. IPv6 over L2VPN Beginning with Cisco IOS Release 12.3(17a)BC, the Cisco uBR10012 router now supports IPv6 using Layer 2 VPNs based on SID to 802.1q mapping.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Export (NDE), you can export data to a remote workstation for data collection and further processing. Network planners can selectively invoke NDE on a router or on a per-subinterface basis to gain traffic performance, control, or accounting benefits in specific network locations.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Table 9 Netflow Version 5 Flow Record Format Bytes Content Description 0-3 srcaddr Source IP address. 4-7 dstaddr Destination IP address. 8-11 nexthop Next hop router's IP address. 12-15 input and output Input and output interface's SNMP index. 16-19 dPkts Packets in the flow. 20-23 dOctets Total number of Layer 3 bytes in the flow's packets.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Table 10 Terms and Definitions for Version 8 Headers Term Definition Version The flow export format version number. In this case, the number is “8”. Count The number of export records in the datagram. System Uptime The number of milliseconds since the router was last booted. UNIX Seconds The number of seconds since 0000 Universal Time Code (UTC) 1970.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router This feature allows service providers to create a Layer 2 tunnel by mapping an upstream service identifier (SID) to an IEEE 802.1Q Virtual Local Area Network (VLAN). For additional information about configuring TLS on the Cisco uBR10012 CMTS, refer to the following document on Cisco.com: • Transparent LAN Service over Cable http://www.cisco.
Chapter 1 Overview of Cisco uBR10012 Universal Broadband Router Software Supported Software Features for the Cisco uBR10012 Router Cisco uBR10012 Universal Broadband Router Software Configuration Guide 1-98 OL-1520-08
C H A P T E R 2 Configuring the Cable Modem Termination System for the First Time This chapter describes how to start up and configure the Cisco uBR10000 series Cable Modem Termination System (CMTS) for the first time. The chapter contains the following sections: Section Purpose “Preparing for Configuration” section on page 2 Identifies tasks and analysis that you must complete prior to powering on and configuring the Cisco uBR10012 router.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Preparing for Configuration Preparing for Configuration Complete these prerequisite steps before you power on and configure the Cisco uBR10012 router: • Ensure that your network supports reliable broadband data transmission. Your plant must be swept, balanced, and certified based on National Television Standards Committee (NTSC) or appropriate international cable plant recommendations.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Understanding Cisco uBR10012 Router Configuration Fundamentals Understanding Cisco uBR10012 Router Configuration Fundamentals This section describes the basic parameters of using passwords. Note These sections provide minimal configuration instructions. For additional configuration information, refer to subsequent chapters in this guide.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Understanding Cisco uBR10012 Router Configuration Fundamentals Note An enable secret password can contain from 1 to 25 uppercase and lowercase alphanumeric characters. An enable password can contain any number of uppercase and lowercase alphanumeric characters. A number cannot be the first character. Spaces are valid password characters; for example, “two words” is a valid password. Leading spaces are ignored.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Understanding Cisco uBR10012 Router Configuration Fundamentals Replacing or Recovering Passwords 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 uBR10012 router. Step 2 Configure the terminal to operate at 9600 baud, 8 data bits, no parity, and 2 stop bits.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Understanding Cisco uBR10012 Router Configuration Fundamentals Note The enable secret password is encrypted and cannot be recovered; it must be replaced. The enable and console passwords can be encrypted text or clear text. Proceed to the next step to replace an enable secret, console login, or enable password.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR10012 Router Using AutoInstall Configuring the Cisco uBR10012 Router Using AutoInstall The AutoInstall process is designed to configure the Cisco uBR10012 router automatically after connection to your WAN. For AutoInstall to work properly, a TCP/IP host on your network must be preconfigured to provide the required configuration files.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR10012 Router Using the Setup Facility Configuring the Cisco uBR10012 Router Using the Setup Facility The Cisco uBR10000 series Setup facility (also called the System Configuration dialog) is a useful and efficient tool for configuring your CMTS.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR10012 Router Using the Setup Facility Cisco Internetwork Operating System Software IOS (tm) 10000 Software (UBR10K-P6-M), Version 12.2(2)XF TAC Support: http://www.cisco.com/cgi-bin/ibld/view.pl?i=support Copyright (c) 1986-2001 by Cisco Systems, Inc. Compiled Fri 20-Jul-01 16:15 by test Image text-base: 0x60008960, data-base: 0x612E0000 cisco uBR10000 (PRE-RP) processor with 98304K/32768K bytes of memory.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR10012 Router Using the Setup Facility The enable password is used when there is no enable secret password and when using older software and some boot images. Enter enable password: ****** Enter virtual terminal password: ****** Step 6 The Simple Network Management Protocol (SNMP) is the most widely supported open standard for network management.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR10012 Router Using the Setup Facility Configuring interface cable 5/0/0: Is this interface in use? [yes]: Configure this interface? [yes]: IP address for this interface [19.2.22.5]: Number of bits in subnet field [8]: Class A network is 19.0.0.0, 8 subnet bits; mask is /16 Configuring interface cable 1/1: Is this interface in use? [yes]: Configure this interface? [yes]: IP address for this interface [19.2.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR10012 Router Using the Setup Facility Configuring Individual Upstream Modulation Profiles You can define individual modulation profiles. A modulation profile consists of a table of physical layer characteristics for the different types of upstream bursts such as initial maintenance, long grant, request data, request, short grant, and station maintenance.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cisco uBR10012 Router Manually Using Configuration Mode Configuring the Cisco uBR10012 Router Manually Using Configuration Mode You can configure the Cisco uBR10012 router manually if you prefer not to use the Setup facility or AutoInstall. Complete the following steps: Step 1 Connect a console terminal to the console port on the I/O controller.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cable Interface with the Extended Setup Facility Step 9 Repeat Step 8 for each upstream port on the cable interface line card. Step 10 Activate the upstream port: Router(config-int)# no cable upstream port shutdown Step 11 Repeat Step 10 to activate each port used on your cable interface line card.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cable Interface with the Extended Setup Facility The MAC addresses are assigned to the slots in sequence. This address scheme allows you to remove line cards and insert them into other Cisco uBR10012 router without causing the MAC addresses to move around the network or be assigned to multiple devices.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Configuring the Cable Interface with the Extended Setup Facility Configuring Global Parameters Step 1 Access the host by responding to the following prompt: Enter host name [cmts]: Step 2 The enable secret password is used to protect access to privileged EXEC and configuration modes. This password, after entered, becomes encrypted in the configuration.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Saving Your Configuration Settings Saving Your Configuration Settings To store the configuration or changes to your startup configuration in NVRAM, enter the copy running-config startup-config command at the Router# prompt: Router# copy running-config startup-config This command saves the configuration settings you set using configuration mode, the Setup facility, or AutoInstall.
Chapter 2 Configuring the Cable Modem Termination System for the First Time Reviewing Your Settings and Configurations When Baseline Privacy is enabled, the Cisco uBR10012 router routes encrypted and decrypted packets from a host or peer to another host or peer. BPI is configured with key encryption keys (KEKs) and traffic encryption keys (TEKs).
C H A P T E R 3 Configuring Cable Interface Features for the Cisco uBR10012 Router The cable interface in the Cisco uBR10012 router serves as the cable TV radio frequency (RF) interface, supporting downstream and upstream signals. The downstream is output as an intermediate-frequency (IF) signal suitable for use with an external upconverter.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Administratively Shutting Down and Restarting an Interface Administratively Shutting Down and Restarting an Interface You can disable an interface by shutting it down. Shutting down an interface disables all functions on the specified interface and marks the interface as unavailable on the display of all monitoring commands. This information is communicated to other network servers through all dynamic routing protocols.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Downstream Cable Interface Configuring the Downstream Cable Interface These configurations are required. The first step in configuring the Cisco cable interface is to configure the downstream cable interface.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Downstream Cable Interface Activating Downstream Cable Address Resolution Protocol Requests 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.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Downstream Cable Interface Activating Downstream Ports To activate a downstream port on a Cisco uBR10000 series cable interface card for digital data transmissions over the HFC network, complete the steps in the following table. Step 1 Step 2 Command Purpose Router> enable Enters enable (privileged EXEC) mode. Password: password Enter the password.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Downstream Cable Interface 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.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Downstream Cable Interface Verifying the Downstream Helper Address To verify the downstream helper address setting, enter the show running-config command and look for in the cable interface configuration information: cable helper-address Router# show running-config Building configuration... Current configuration: ! interface cable5/0/0 ip address 10.254.254.254 255.0.0.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Downstream Cable Interface Verifying the Downstream Interleave Depth To verify the downstream interleave depth setting, enter the show controllers cable command for the downstream port you have just configured: Router# show controllers cable5/0/0 downstream Cable5/0/0 Downstream is up Frequency=96000000, Channel Width 6 MHz, 64-QAM, Symbol Rate 5.056941 Msps FEC ITU-T J.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Downstream Cable Interface Step 1 Ensure that the cable connections are not loose or disconnected. Step 2 Ensure that the cable interface line card is firmly seated in its chassis slot. Step 3 Ensure that the captive installation screws are tight.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Downstream Cable Interface Command Purpose Step 1 Router(config-if)# cable downstream rate-limit token-bucket Router(config-if)# cable downstream rate-limit token-bucket shaping Router(config-if)# cable downstream rate-limit token-bucket shaping granularity 8 Router(config-if)# cable downstream rate-limit token-bucket shaping max-delay 256 Step 2 Router(config-if)# cable downstream rate-limit weighted-discar
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Configuring the Upstream Cable Interface These configurations are required. Upstream cable interface commands configure the frequency and input power level of the upstream signal, in addition to error detection and correction of the upstream signal. The configuration of the upstream cable interface depends on the characteristics of your cable plant.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Task Description “Setting the Upstream Input Power Level” section on page 22 Provides instructions to set the upstream input power level in decibels per millivolt (dBmV), and provides additional information about the Cisco uBR10000 series CMTS controls the output power levels of CMs “Setting Upstream Rate Limiting and Traffic Shaping” section on page 24 Provides instructions to activ
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Verifying Upstream Admission Control To determine if upstream admission control is configured and activated, enter the show running-config command in privileged EXEC mode and look for the cable interface configuration information.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Activating Upstream Forward Error Correction The Cisco uBR10000 series CMTS uses forward error correction (FEC) to attempt to correct any upstream data that might have been corrupted. When FEC is activated, all CMs on the network also activate FEC. Note Although upstream FEC is an option, Cisco recommends that you use upstream FEC. FEC is activated by default and should not be disabled.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Verifying the Upstream Ports To determine if the upstream ports are activated or deactivated, enter the show interface cable command for the upstream port just configured: Router# show interface cable5/0/0 Cable5/0/0 is up, line protocol is up Hardware is BCM3210 FPGA, address is 00e0.1e5f.7a60 (bia 00e0.1e5f.7a60) Internet address is 1.1.1.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Verifying Upstream Power Adjustment To determine if upstream power adjustment is configured and activated, enter the show running-config command and look for the cable interface configuration information. If upstream power adjustment is enabled, any or all three of the continue, noise, and threshold power-adjustment entries appear in the show running-config command output.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface To return the upstream time-adjustment ranging value to the default of 2 seconds, enter the following command in cable interface configuration mode: Router(config-if)# no cable upstream usport time-adjust continue To return the upstream time adjustment threshold value to the default of 1 second, enter the following command in cable interface configuration mode: Router(config-if)# no cable
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Step 1 Command Purpose Router(config-if)# cable upstream usport data-backoff start end Optimizes the automatic setting for as many as 250 cable interfaces per upstream port. Sets manual values for data backoff windows only when operating with more than 250 cable interfaces per upstream port.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Tx Backoff Start 0, Tx Backoff End 4 Modulation Profile Group 1 part_id=0x3137, rev_id=0x03, rev2_id=0xFF nb_agc_thr=0x0000, nb_agc_nom=0x0000 Range Load Reg Size=0x58 Request Load Reg Size=0x0E Minislot Size in number of Timebase Ticks is = 8 Minislot Size in Symbols = 64 Bandwidth Requests = 0xFE Piggyback Requests = 0xD Invalid BW Requests= 0x2 Minislots Requested= 0x2963 Minislots Gran
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Verifying Upstream Channel Width To verify the current value of the upstream channel width, enter the show controllers cable command for the upstream port you just configured. A sample follows below: Router# show controllers cable5/0/0 u0 Cable5/0/0 Upstream 0 is up Frequency 24.016 MHz, Channel Width 0.800 MHz, QPSK Symbol Rate 0.640 Msps Spectrum Group is overridden SNR 33.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface To set a fixed upstream frequency, use the following commands in cable interface configuration mode. Command Purpose Step 1 Router(config-if)# cable upstream usport frequency up-freq-hz Enters the fixed center frequency for your upstream RF carrier in Hz. Step 2 Router(config-if)# no cable upstream usport shutdown Places the upstream port in the “admin up” state.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Setting the Upstream Input Power Level The Cisco uBR10012 router 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). The default setting of 0 dBmV is the optimal setting for the upstream power level.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Note Software adjustments of 1 to 3 dB can be used to adjust for minor variations in measurement or setup and port-to-port calibration differences. These adjustments can significantly improve cable interface performance, particularly in marginal situations. Larger adjustments should be made in conjunction with spectrum analyzer support at the headend or distribution hub.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Setting Upstream Rate Limiting and Traffic Shaping Upstream traffic shaping, available on the DOCSIS upstream channel, delays the scheduling of the upstream packet, which in turn causes the packet to be buffered on the cable customer premises equipment (CPE) device, instead of being dropped.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring the Upstream Cable Interface Router# show interface c5/0/0 sid 1 counters 00:02:23: %ENVM-3-LASTENV: Cannot save environmental data Sid Req-polls BW-reqs Grants Packets Frag issued received issued received complete 1 0 22 22 22 0 2 0 3 3 2 0 3 0 0 0 0 0 Concatpkts received 0 0 0 Verifying Upstream Traffic Shaping To determine if upstream traffic shaping is configured and activated, enter the show running-config comm
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring Optional Cable Interface Features Configuring Optional Cable Interface Features This section builds on the required cable interface features documented earlier in this chapter. This section provides instructions for several optional cable interface configurations. These interface features pertain to heightened performance and security measures.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring Optional Cable Interface Features Verifying Cable Proxy ARP Requests To verify if cable proxy ARP has been activated or deactivated, enter the more system:running-config command and look for the cable interface configuration information. If cable proxy ARP has been activated, it does not appear in the output. If cable proxy ARP has been deactivated, it appears in the output as no cable proxy-arp.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring Optional Cable Interface Features Setting Optional Broadcast and Cable IP Multicast Echo You can set additional IP parameters to enable downstream echoing of upstream data.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Configuring Optional Cable Interface Features Access Lists and the cable ip-multicast echo Command The cable ip-multicast-echo command is enabled by default on the Cisco uBR10012 router, so that multicast IP packets that arrive on the upstream at the Cisco CMTS are forwarded on the appropriate downstream ports so that they are delivered to the other CMs and CPE devices on that segment of the network.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Cable Interface Configuration Examples Cable Interface Configuration Examples This section provides the following configuration examples: • “Subinterface Configuration Example” section on page 30 • “Cable Interface Bundling Example” section on page 30 • “Cable Interface Bundle Master Configuration Example” section on page 31 • “PE Router Configuration Example” section on page 31 • “P Router Configuration Example” sectio
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Cable Interface Configuration Examples Subinterface Definition on Bundle Master Example The following example shows how to define subinterfaces on a bundle master and define Layer 3 configurations for each subinterface. In this example, the interfaces int c5/0/0 and int c4/0/0 are bundled.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Cable Interface Configuration Examples ! ! Allows the system to use a full range of IP addresses, including subnet zero, for ! interface addresses and routing updates. ip subnet-zero ! ! Enables Cisco Express Forwarding. ip cef ! ! Configures a Cisco IOS Dynamic Host Configuration Protocol (DHCP) server to insert the ! DHCP relay agent information option in forwarded BOOTREQUEST messages.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Cable Interface Configuration Examples ! they will be assigned instead to the logical subinterfaces. All other commands for ! this cable interface should be configured to meet the specific needs of your cable RF ! plant and cable network.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Cable Interface Configuration Examples ! Defines the DHCP server for PC host devices. cable helper-address 10.4.1.2 host ! ! Disables cable proxy Address Resolution Protocol (ARP) and IP multicast echo on this ! cable interface. no cable proxy-arp no cable ip-multicast-echo ! ! Configures the physical aspects of the 5/0.3 cable subinterface interface Cable5/0/0.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Cable Interface Configuration Examples P Router Configuration Example This example (system information display) identifies the version of Cisco IOS software installed and displays PE configurations: Building configuration... Current configuration: ! version 12.
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Cable Interface Configuration Examples BGP Routing Sessions Configuration Example To configure BGP routing sessions in a provider network, use the following commands in router configuration mode on the PE router: Step 1 Configure the BGP routing process with the autonomous system number: Router(config)# router bgp 42 Step 2 Specify a neighbor's IP address or BGP peer group, identifying it to the local autonomous system: Route
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Cable Interface Configuration Examples RIP PE-to-CE Routing Sessions Configuration Example To configure RIP PE-to-CE routing sessions, use the following commands in router configuration mode on the PE router: Step 1 Enable RIP, define RIP parameters for PE-to-CE routing sessions, and enable RIP on the PE-to-CE link: Router(config)# router rip Router(config-router)# address-family ipv4 unicast vrf go_fast_internet_company Router(
Chapter 3 Configuring Cable Interface Features for the Cisco uBR10012 Router Cable Interface Configuration Examples Cisco uBR10012 Universal Broadband Router Software Configuration Guide 3-38 OL-1520-05
C H A P T E R 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Note Writer’s Note - Reinstate all topics/procedures that were removed for uBR10K SCG. Use the previous uBR7200 SCG as first source. Verify that interface examples are taken from uBR7200, not from uBR10K. This chapter ready for update, and is confirmed for this pending edition.
Chapter 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Activating CM Authentication Section Purpose “Configuring the Dynamic Map Advance Algorithm” section on page 8 Enhances the upstream throughput from a CM connected to the Cisco uBR10000 series CMTS. The system employs a new algorithm that automatically tunes the lookahead time in MAC allocation and management messages (MAPs), based on several input parameters for the corresponding upstream channel.
Chapter 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Activating CM Insertion Interval Examples The following example shows how to activate CM authentication using 3344912349988...sf as the shared secret key and indicating that an encrypted message follows: Router(config-if)# cable shared-secret 7 3344912349988cisco@xapowenaspasdpuy230jhm...
Chapter 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Activating CM Authentication Activating CM Authentication The Cisco uBR10000 series CMTS 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. The default setting is "on" (CM authentication is activated).
Chapter 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Activating CM Upstream Address Verification Activating CM Upstream Address Verification CM upstream address verification ensures that only CMs that have received Dynamic Host Configuration Protocol (DHCP) leases through the Cisco uBR10012 router can access the HFC network. The Cisco uBR10012 router discards all packets received from or for hosts that have not received Dynamic Host Configuration Protocol (DHCP)-assigned addresses.
Chapter 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Clearing CM Reset Command Purpose clear cable modem mac-addr counters Clears the counters in the station maintenance list for the CM with a specific MAC address. clear cable modem ip-addr counters Clears the counters in the station maintenance list for the CM with a specific IP address. clear cable modem all counters Clears the counters in the station maintenance list for all CMs.
Chapter 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Configuring CM Registration Timeout Configuring CM Registration Timeout By default, registered CMs that have no upstream activity for three minutes are timed out and disconnected from the Cisco uBR10012 router. This timeout interval can be decreased to 2 minutes or increased up to 60 minutes.
Chapter 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Configuring the Dynamic Map Advance Algorithm Tip Command Purpose [no] cable insertion-interval [automatic [Imin [Imax]]] | [msecs] Enables or disables the dynamic ranging interval algorithm. If lower and upper bounds for varying the period are not specified, the system uses default frequency values of initial ranging upstream slots between 50 milliseconds to 2 seconds, respectively.
Chapter 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Configuring Maximum Hosts Attached to a CM To configure the dynamic map advance algorithm, use the following command in cable interface configuration mode. Command Purpose cable map-advance dynamic [n]|static Specifies a value to enhance the upstream throughput from a CM connected to the Cisco uBR10012 router. The n argument provides the safety factor for the dynamic map advance algorithm.
Chapter 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Configuring Sync Message Interval To configure per modem filters, use the following commands in cable interface configuration mode. Step 1 Command Purpose Router(config-if)# cable {modem | host | device} { | } access group Configure access lists to be specified on a per-interface and per-direction basis.
Chapter 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Configuring Sync Message Interval Command Purpose cable sync-interval msec Specifies the interval in milliseconds between successive sync message transmissions from the Cisco uBR10000 series CMTS. Valid values are from 1 to 200 msec. Default = 10 msec. no cable sync-interval Returns the sync message interval to its default value of 10 msec.
Chapter 4 Managing Cable Modems on the Hybrid Fiber-Coaxial Network Configuring Sync Message Interval Cisco uBR10012 Universal Broadband Router Software Configuration Guide 4-12 OL-1520-05
C H A P T E R 5 Configuring Basic Broadband Internet Access This chapter describes the parameters of configuring and maintaining basic broadband Internet access.
Chapter 5 Configuring Basic Broadband Internet Access Recommended Basic Configuration for High-Speed Internet Access Figure 5-1 illustrates this general signal flow and associated processes in the CMTS. Figure 5-1 Note Two-Way Internet Access Network Example The external upconverter shown in Figure 5-1 is needed only if you are not using the router’s integrated upconverter.
Chapter 5 Configuring Basic Broadband Internet Access Basic Internet Access Sample Configuration File Basic Internet Access Sample Configuration File The following sample configuration file for the Cisco uBR10012 router includes the following features: • Basic DOCSIS Internet Access • DHCP Address Pools—The Cisco uBR10012 router acts as a DHCP server, providing different address spaces on the basis of the CM’s service level, including those customers whose network access should be denied access because
Chapter 5 Configuring Basic Broadband Internet Access Basic Internet Access Sample Configuration File cable config-file disable.cm access-denied service-class 1 max-upstream 1 service-class 1 max-downstream 1 service-class 1 max-burst 1600 cpe max 1 timestamp ! ip subnet-zero ip cef no ip domain-lookup ip dhcp excluded-address 10.128.1.1 10.128.1.15 ip dhcp excluded-address 10.254.1.1 10.254.1.15 ip dhcp ping packets 1 ! ip dhcp pool CableModems network 10.128.1.0 255.255.255.0 bootfile platinum.
Chapter 5 Configuring Basic Broadband Internet Access Basic Internet Access Sample Configuration File cable upstream 0 power-level 0 cable upstream 0 admission-control 150 no cable upstream 0 shutdown cable upstream 1 description Cable upstream interface, South cable upstream 1 frequency 37008000 cable upstream 1 power-level 0 cable upstream 1 admission-control 150 no cable upstream 1 shutdown cable upstream 2 description Cable upstream interface, East cable upstream 2 frequency 37008000 cable upstream 2
Chapter 5 Configuring Basic Broadband Internet Access Basic Internet Access Sample Configuration File In this case, the user has configured modulation profile number “3” to be available to upstream channels wherever they are configured to apply it. Note that this modulation profile has been configured to operate with a QAM-16 modulation scheme. The default modulation scheme for any upstream profile (if it is not set to QAM-16) is QPSK.
C H A P T E R 6 Troubleshooting the System This chapter contains troubleshooting information for various functions of your Cisco uBR10000 series Cable Modem Termination System (CMTS) and includes the following sections: Section Purpose “Understanding show Command Responses” section on page 2 Provides show command options for deriving system information.
Chapter 6 Troubleshooting the System Understanding show Command Responses Understanding show Command Responses This section summarizes cable-related show commands. For additional command information about these and other CMTS commands, refer to these additional resources on Cisco.
Chapter 6 Troubleshooting the System show cable flap-list Note The asterisk (*) in the P-Adj field indicates that a power adjustment has been made for that CM. The exclamation point (!) indicates that the CM has reached its maximum power transmit level and cannot increase its power level further. The following example shows the return for flap-list tables sorted by MAC address and by time: Router# show cable flap-list sort-flap Mac Addr CableIF Ins Hit Miss .1eab.2c0b C6/0/0 U0 108 318 27 .1eb2.
Chapter 6 Troubleshooting the System show cable modem show cable modem To display information for the registered and unregistered CMs, use the show cable modem command in privileged EXEC mode. show cable modem [ip-address | interface | mac-address] [options] Some command options differ between the Cisco uBR10012 router (Cisco IOS Release 12.2 XF) and the Cisco uBR7200 series routers (Cisco IOS 12.1 EC). Note Commencing with Cisco IOS Release 12.0(7)XR and 12.
Chapter 6 Troubleshooting the System show cable modem Available options when displaying information for a single CM classifiers Displays the classifiers for the modem. classifiers cache classifiers verbose cpe cnr Examples Displays the classifiers in the cache maintained for each CM. (This cache is based on IP header field values and speeds up classifier lookups and reduces per packet processing overhead.) Displays detailed information for the modem's classifiers.
Chapter 6 Troubleshooting the System show cable modem maintenance show cable modem maintenance To display station maintenance error statistics, use the show cable modem maintenance command in privileged EXEC mode. show cable modem maintenance Syntax Description maintenance Displays station maintenance error statistics. When a CM is detected to be offline by the CMTS—no reply after 16 retries of station maintenance requests—the CM is marked offline.
Chapter 6 Troubleshooting the System show cable modulation-profile Syntax Description profile (Optional) Profile number. Valid values are from 1 to 8. iuc-code (Optional) Internal usage code.
Chapter 6 Troubleshooting the System show cable qos profile show cable qos profile To display quality-of-service (QoS) profiles for a Cisco CMTS, use the show cable qos profile command in privileged EXEC mode. show cable qos profile profile-index [verbose] Note Syntax Description Examples Commencing with Cisco IOS Release 12.0(7)XR, the verbose option was added. Commencing with Cisco IOS Release 12.1(4)CX, this command was deprecated for DOCSIS 1.1 use because DOCSIS 1.
Chapter 6 Troubleshooting the System show interface cable show interface cable To display the current configuration and status of a cable interface, use the show interface cable command in privileged EXEC mode. show interface cable slot/port [options] Syntax Description Examples slot/port Identifies the Cisco CMTS chassis slot number and downstream port number.
Chapter 6 Troubleshooting the System show interface cable sid show interface cable sid To display the service identifier (SID) for a CM, use the show interface cable sid command in privileged EXEC mode. show interface cable x/y sid [counters | qos] [verbose] Syntax Description Examples x/y Identifies the Cisco CMTS chassis slot number and downstream port number in slot/port format. Valid values are from 3 to 6. sid Service identification number.
Chapter 6 Troubleshooting the System show cable modulation-profile show cable modulation-profile To display modulation profile group information for a Cisco CMTS, use the show cable modulation-profile command in privileged EXEC mode. show cable modulation-profile [profile] [iuc-code] Note Syntax Description The show cable modulation-profile command replaces the former show cable burst-profile command. profile (Optional) Profile number. Valid values are from 1 to 8.
Chapter 6 Troubleshooting the System Using a Headend CM to Verify Downstream Signals Using a Headend CM to Verify Downstream Signals You can use a Cisco uBR924 cable access modem to verify the downstream signal originating from a Cisco uBR10012 router. Be sure that you configure the Cisco uBR924 according to DOCSIS CM practices.
Chapter 6 Troubleshooting the System Performing Amplitude Averaging Output of the show cable modem command appears below: Router# show cable modem MAC Address IP Address I/F 0050.04f9.edf6 0050.04f9.efa0 0030.d002.41f5 0030.d002.4177 0030.d002.3f03 0050.04f9.ee24 0030.d002.3efd 0030.d002.41f7 0050.04f9.eb82 0050.f112.3327 0030.d002.3f8f 0001.64f9.1fb9 0030.d002.417b 0090.9600.6f7d 0010.9501.
Chapter 6 Troubleshooting the System Performing Amplitude Averaging Caution Note Default settings are adequate for system operation. Amplitude averaging is an automatic procedure. In 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.
Chapter 6 Troubleshooting the System Setting Downstream Test Signals Setting Downstream Test Signals This feature provides configuration commands that allow you to create downstream test signals. Both pseudo random bit stream (PRBS) and unmodulated carrier test signals are now supported. A PRBS test signal is a random data pattern that has been modulated to look like a real data stream. An unmodulated test signal is a continuous sine wave that looks like a carrier wave on the downstream transmission.
Chapter 6 Troubleshooting the System Pinging Unresponsive CMs Pinging Unresponsive CMs Pinging a CM 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 uBR10012 router 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.
Chapter 6 Troubleshooting the System Using Cable Interface debug Commands Using Cable Interface debug Commands To troubleshoot cable interfaces, use the following debug commands in enable (privileged EXEC) mode. Caution Command Purpose debug cable ? Displays all debug cable commands that are available. undebug all Turns off all debugging information to the console and chooses a more selective debug command. Note Refer to the debug commands that follow.
Chapter 6 Troubleshooting the System Using Cable Interface debug Commands debug cable map To display map debugging messages, use the debug cable map command in privileged EXEC mode. Use the no form of this command to disable debugging output. debug cable map sid [sid-num] no debug cable map debug cable phy To activate the debugging of messages generated in the cable PHY, use the debug cable phy command in privileged EXEC mode.
Chapter 6 Troubleshooting the System Using Cable Interface debug Commands 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. To deactivate debugging of upstream messages, use the no form of this command.
Chapter 6 Troubleshooting the System Using Cable Interface debug Commands debug cable startalloc (for Channel Allocations) To activate the debugging of channel allocations on the HFC network, use the debug cable startalloc command in privileged EXEC mode. To deactivate debugging of cable channel allocations, use the no form of this command.
A P P E N D I X A DOCSIS and CMTS Architectural Overview This appendix provides a brief overview of general DOCSIS architecture and enhancements, all of which highlight the power and performance of the Cisco uBR10000 series CMTS. • “DOCSIS Specification Summary” section on page A-1 • “CMTS Traffic Engineering” section on page A-5 For a more comprehensive explanation of DOCSIS concepts and features, refer to these documents on Cisco.com: Note • DOCSIS 1.
Appendix A DOCSIS and CMTS Architectural Overview DOCSIS Specification Summary Overview of DOCSIS NTSC Cable Plants DOCSIS-compliant cable plants that support North American channel plans use ITU J.83 Annex B RF. Figure 0-1 illustrates a DOCSIS two-way architecture.
Appendix A DOCSIS and CMTS Architectural Overview DOCSIS Specification Summary QoS Policy Propagation on Border Gateway Protocol BGP typically operates between the cable operator’s regional network and external networks, providing routing information exchange between different networks. The Open Shortest Path First (OSPF) protocol is used in regional networks usually.
Appendix A DOCSIS and CMTS Architectural Overview DOCSIS Specification Summary Overview of DOCSIS-Compliant Upstream Signals The upstream channel is characterized by many CMs (or CMs in STBs) transmitting to the CMTS. These signals typically operate in a burst mode of transmission. Time in the upstream channel is slotted. The CMTS provides time slots and controls the usage for each upstream interval. The CMTS sends regular mappings of minislot structure in downstream broadcast MAP messages.
Appendix A DOCSIS and CMTS Architectural Overview CMTS Traffic Engineering Upstream signals are demodulated using Quadrature Phase Shift Keying (QPSK) or quadrature amplitude modulation (QAM). QPSK carries information in the phase of the signal carrier, whereas QAM uses both phase and amplitude to carry information. Tip If your cable plant is susceptible to ingress or noise, Cisco recommends QPSK, based on the importance of the data.
Appendix A DOCSIS and CMTS Architectural Overview CMTS Traffic Engineering When configuring your system, configure downstream and upstream parameters based on the fiber nodes involved, the required services the CM or STB supports, the importance of the data, and desired performance capabilities. Your cable plant determines its data performance. Design your network to maximize its performance and capacity at minimum cost, while meeting subscriber data requirements.
Appendix A DOCSIS and CMTS Architectural Overview CMTS Traffic Engineering Note The minimum data rate has the greatest impact on the network. The network must be sized to accommodate this level of traffic to fulfill the defined service data requirements. The amount of bandwidth available to a group of subscribers establishes where, within the defined maximum and minimum data rates, a subscriber within a group is able to operate.
Appendix A DOCSIS and CMTS Architectural Overview CMTS Traffic Engineering Cisco uBR10012 Universal Broadband Router Software Configuration Guide A-8 OL-1520-05
A P P E N D I X B Configuration Register Information for the Cisco uBR10012 Universal Broadband Router The following information is found in this appendix: • Configuration Bit Meanings, page B-9 • Displaying the Configuration Register While Running Cisco IOS, page B-13 • Displaying the Configuration Register While Running ROM Monitor, page B-14 • Setting the Configuration Register While Running Cisco IOS, page B-15 • Setting the Configuration Register While Running ROM Monitor, page B-15 Configu
Appendix B Configuration Register Information for the Cisco uBR10012 Universal Broadband Router Configuration Bit Meanings Table B-1 Configuration Register Bit Settings (continued) Bit No.
Appendix B Configuration Register Information for the Cisco uBR10012 Universal Broadband Router Configuration Bit Meanings in ROMmon. If bit 13 is not set, the router will continue to netboot images indefinitely. The default setting for bit 13 is 0. If bit 13 is set, the system boots the boot helper image found in boot flash memory without any retries. The server creates a default filename as part of the automatic configuration processes.
Appendix B Configuration Register Information for the Cisco uBR10012 Universal Broadband Router Configuration Bit Meanings Bit 8 Bit 8 controls the console Break key. Setting bit 8 (the factory default) causes the processor to ignore the console Break key. Clearing bit 8 causes the processor to interpret Break as a command to force the system into the bootstrap monitor, halting normal operation.
Appendix B Configuration Register Information for the Cisco uBR10012 Universal Broadband Router Displaying the Configuration Register While Running Cisco IOS Note The console line rate on Cisco universal broadband routers is fixed at 9600 and cannot be changed. For additional information about configuring baud rates, refer to oneor more of these documents on Cisco.com: • “Replacing or Recovering Passwords” in the Cisco uBR10012 Universal Broadband Router Troubleshooting Guide: http://www.cisco.
Appendix B Configuration Register Information for the Cisco uBR10012 Universal Broadband Router Displaying the Configuration Register While Running ROM Monitor Last reset from power-on Toaster processor tmc0 is running. Toaster processor tmc1 is running. 1 OC12 POS controller (1 POS) 1 TCCplus card(s) 1 FastEthernet/IEEE 802.3 interface(s) 1 Gigabit Ethernet/IEEE 802.3 interface(s) 3 Packet over SONET network interface(s) 2 Cable Modem network interface(s) 509K bytes of non-volatile configuration memory.
Appendix B Configuration Register Information for the Cisco uBR10012 Universal Broadband Router Setting the Configuration Register While Running Cisco IOS Setting the Configuration Register While Running Cisco IOS The configuration register can be set in the configuration mode with the config-register 0x command. See the following sample output: Router# config t Enter configuration commands, one per line. End with CNTRL/Z.
Appendix B Configuration Register Information for the Cisco uBR10012 Universal Broadband Router Setting the Configuration Register While Running ROM Monitor B-16
INDE X ARP (Address Resolution Protocol) A Access Control List support for COPS Intercept 1-47 host-to-host communication, activating Proxy ARP 3-26 1-30 per-modem and per-host overview xii acronyms, list of 1-60 AutoInstall address facility overview 3-6, 3-7 downstream helper address dynamic IP address allocation 2-14 B 1-30, 1-88 admission control Basic Wiretap Support 3-12, 3-13 Advanced-mode DOCSIS Set-Top Gateway 1.1 Advanced-mode DOCSIS Set-Top Gateway Issue 1.
Index 3-16 cable upstream scrambler command C 3-16 cable upstream time-adjust command cable arp filter command 1-17 cable commands cable arp filter 1-17 cable interface 3-9 cable downstream annex command 3-6 cable interface bundling counters, clearing 4-7 insertion interval 1-17 sync message interval, configuring 3-12 troubleshooting authentication cable upstream differential-encoding command 3-13 3-14 1-49 CDP (Cisco Discovery Protocol) configuring 3-15 3-22 cable upstream rate-l
Index configuring 3-19, 3-20 1-16 configuration mode 12.2 BC release train and images 1-3, 1-4 12.
Index Annex B 3-9 1-21 CBR (constant bit rate) extension overview 1-19 1-22 1-19 extensions and enhancements DOCSIS 1.0+ extensions and enhancements 1-28 DOCSIS 1.1 two-way server requirements A-4 upstream signals DOCSIS 1.0 downstream packet classifier 1-33 downstream packet scheduler 1-33 DOCSIS 1.
Index signal overview A-3 flap list (cable) 6-12 troubleshooting downstream CM signals 1-91 3-9 framing format, MPEG DSG 1.1 1-64 frequency, setting upstream DSG 1.
Index 1-55 Service Independent Intercept multicast echo 1-54 interception, packet Interior Gateway Routing Protocol, see IGRP 1-41 interoperability, DOCSIS 1.
Index 3-4 downstream, activating routing protocols 3-4 downstream, verifying supported 1-61 overview 1-60, 3-26 Proxy ARP CDP (Cisco Discovery Protocol) S 1-61 1-61 DNS (Domain Name System) A-3 2-10 IGRP (Internet Gateway Routing Protocol) 2-10 Secure Socket Layer Server for Usage-Based Billing SNMP (Simple Network Management Protocol) 1-61 TFTP (Trivial File Transfer Protocol) 1-61 1-61 1-19 1-29, 1-30 DOCSIS 1.
Index symbols, defined xii U 4-10, 4-11 sync message interval 1-61 UDP (User Datagram Protocol) upstream T 1-30 address verification 3-12, 3-13 admission control Tables command syntax and emphasis conventions Guide Contents and Organization xi x memory recommendations for Cisco IOS release 12.
