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Cisco cBR Series Configuration Manual

Converged broadband routers application - voice and video configuration guide
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Cisco cBR Series Converged Broadband Routers Application—Voice
and Video Configuration Guide
First Published: March 26, 2015
Americas Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 527-0883

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Summary of Contents for Cisco cBR Series

  • Page 1 Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide First Published: March 26, 2015 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883...
  • Page 2 © 2015 Cisco Systems, Inc. All rights reserved.

  • Page 3: Table Of Contents

    DOCSIS 3.0 DSG MDF Support Source Specific Multicast Mapping How to Configure Advanced-Mode DSG Issue 1.2 Configuring the Default Multicast Quality of Service Configuring Global Tunnel Group Settings for Advanced-Mode DSG 1.2 Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...
  • Page 4 Cisco Network Registrar for the Cisco CMTS Routers C H A P T E R 3 Hardware Compatibility Matrix for Cisco cBR Series Routers Servers Required on the HFC Network Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...
  • Page 5 General Telco Return for the Cisco cBR-8 Router Creating Network Scopes Creating Policies for Class of Service or for Upgrading Cable Modem Cisco IOS Images CNR Steps to Support Subinterfaces Additional References Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...
  • Page 6 Contents Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 7: Hardware Compatibility Matrix For Cisco Cbr Series Routers

    Feature Information Table at the end of this document. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to http://tools.cisco.com/ITDIT/CFN/. An account on http:// www.cisco.com/...

  • Page 8: Chapter 1 Unique Device Identifier Retrieval

    Some entities, such as a chassis, will have sub-entities like slots. An Ethernet switch might be a member of a super-entity like a stack. Most Cisco entities that can be ordered leave the factory with an assigned UDI. The UDI information is printed on a label that is affixed to the physical hardware device, and it is also stored electronically on the device in order to facilitate remote retrieval.

  • Page 9: Retrieving The Unique Device Identifier

    Enter the show inventory command to retrieve and display information about all of the Cisco products installed in the networking device that are assigned a PID, VID, and SN. If a Cisco entity is not assigned a PID, that entity is not retrieved or displayed.
  • Page 10 PID: 10GE ZR , VID: A , SN: FNS11300AUH NAME: "Power Supply Module 0", DESCR: "Cisco cBR CCAP AC Power Supply" PID: PWR-3KW-AC-V2 , VID: V02, SN: DTM17370345 NAME: "Power Supply Module 2", DESCR: "Cisco cBR CCAP AC Power Supply"...

  • Page 11: Troubleshooting Tips

    , SN: Troubleshooting Tips If any of the Cisco products do not have an assigned PID, the output may display incorrect PIDs and the VID and SN elements may be missing, as in the following example. NAME: "POS3/0/0", DESCR: "Skystone 4302 Sonet Framer"...

  • Page 12: Additional References

    Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds. Access to most tools on the Cisco Support website requires a Cisco.com user ID and password. Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 13: Feature Information For Unique Device Identifier Retrieval

    Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://tools.cisco.com/ITDIT/CFN/. An account on http://www.cisco.com/...
  • Page 14 Unique Device Identifier Retrieval Feature Information for Unique Device Identifier Retrieval Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...
  • Page 15 Feature Information Table at the end of this document. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to http://tools.cisco.com/ITDIT/CFN/. An account on http:// www.cisco.com/...

  • Page 16: Chapter 2 Advanced-Mode Docsis Set-Top Gateway 1.2 For The Cisco Cmts Routers

    Feature Information for Advanced-Mode DSG 1.2 for the Cisco CMTS Routers, page 35 Hardware Compatibility Matrix for Cisco cBR Series Routers The hardware components introduced in a given Cisco IOS-XE Release are supported in all subsequent Note releases unless otherwise specified.

  • Page 17: Nat For Dsg Unicast-Only Mapping

    IP address. The unicast IP address is the unicast destination IP address of the DSG packets arriving at the Cisco CMTS router. The multicast IP address is the new destination IP address that is configured to map to one or a set of DSG tunnels.

  • Page 18: Dsg 1.2 Clients And Agents

    During a Cisco IOS software reload or a route processor switchover, the router may fail to query the DNS server if the interfaces are down, and the router may not wait for the interval specified using the cable dsg name-update-interval command to perform a DNS query.

  • Page 19: A-Dsg Forwarding On The Primary Channel

    DOCSIS 2.0 hybrid CMs and DOCSIS 3.0 CMs use Dynamic Bonding Change (DBC) to get DSID information from the Cisco CMTS router, whereas DOCSIS 2.0 DSG hybrid embedded CMs and DOCSIS 3.0 DSG embedded CMs get DSID information from the Cisco CMTS router through MDD messages.

  • Page 20: How To Configure Advanced-Mode Dsg Issue 1.2

    Configures a service class name for the cable multicast group-qos default scn service-class-name aggregate QoS profile. Example: Router(config)# cable multicast group-qos default scn name1 aggregate Step 4 Returns to privileged EXEC mode. Example: Router(config)# end Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 21: Configuring Global Tunnel Group Settings For Advanced-Mode Dsg 1.2

    Configuring Global Tunnel Group Settings for Advanced-Mode DSG 1.2 This procedure configures global and interface-level commands on the Cisco CMTS router to enable DSG tunnel groups. A DSG tunnel group is used to bundle some DSG channels together and associate them to a MAC domain interface.
  • Page 22 Router(config)# end What to Do Next Troubleshooting Tips Refer to debug and show commands in the How to Monitor and Debug the Advanced-mode DOCSIS Set-Top Gateway Feature, on page Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 23: Adding Dsg Tunnel Group To A Subinterface

    Step 4 cable dsg tggroup-id Adds a DSG tunnel group to a subinterface. Example: Router(config-subif)# cable dsg tg 1 Step 5 Returns to privileged EXEC mode. Example: Router(config-subif)# end Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 24: Configuring The Dsg Client Settings For Advanced-Mode Dsg 1.2

    Configuring the DSG Client Settings for Advanced-Mode DSG 1.2 Configuring the DSG Client Settings for Advanced-Mode DSG 1.2 After the global configurations and DSG client configurations are set for DSG 1.2 on the Cisco CMTS, use the following procedure to continue DSG 1.2 client configurations.

  • Page 25: Configuring Downstream Dsg 1.2 Settings For Advanced-Mode Dsg 1.2

    Gateway Feature, on page Configuring Downstream DSG 1.2 Settings for Advanced-Mode DSG 1.2 When the global and client configurations are set for DSG 1.2 on the Cisco CMTS, use the following procedure to continue with DSG 1.2 downstream configurations. Procedure...

  • Page 26: Configuring Ip Multicast Operations

    This section describes how to configure the operation of IP multicast transmissions on the cable and WAN interfaces on the Cisco CMTS. You should perform this configuration on each cable interface being used for Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...
  • Page 27 DSG feature: Example: You must configure this command on each Note interface that forwards multicast traffic. Router(config-if)# ip pim dense-mode Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 28: Enabling Dns Query And Dsg Name Process

    Router(config-if)# end Enabling DNS Query and DSG Name Process The DSG name process enables the Cisco CMTS router to query the DNS server for faster classifier updates. Before You Begin Ensure that the IP DNS-based hostname-to-address translation is configured on the Cisco CMTS router using the ip domain-lookup command in global configuration mode.

  • Page 29: Configuring Nat To Support Unicast Messaging

    IP unicast addresses into the appropriate IP multicast address for the DSG traffic. For the Cisco cBR-8 router, A-DSG 1.2 can use an external router that is close to the Cisco CMTS to support unicast messaging. In this case, the nearby router must support NAT, and then send the address-translated multicast IP packets to the Cisco CMTS.
  • Page 30 Step 8, on page 24 for each cable interface to be configured for DSG unicast traffic. Step 10 Exits global configuration mode and returns to privileged EXEC mode. Example: Router(config)# end Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 31: Configuring Wan Interfaces For Multicast Operations

    Configuring WAN Interfaces for Multicast Operations Configuring WAN Interfaces for Multicast Operations In addition to basic WAN interface configuration on the Cisco CMTS, described in other documents, the following WAN interface commands should be configured on the Cisco CMTS to support IP multicast operations with A-DSG 1.2, as required.
  • Page 32 CPE device on the network, and destined to the multicast group. The multicast group contains the classifiers associated with A-DSG 1.1 rules enabled on the interface. Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 33: Configuring A Standard Ip Access List For Multicast Group Filtering

    Step 4 access-list access-list deny any Configures the access list so that it denies access to any IP addresses other than the ones previously configured. Example: Router(config)# access-list 90 deny Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 34: Disabling A-Dsg Forwarding On The Primary Channel

    Example: release. Router(config)# interface modular-cable 1/0/0:0 Step 3 cable downstream dsg disable Disables A-DSG forwarding and DCD messages on the primary capable interface. Example: Router(config-if)# cable downstream dsg disable Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 35: How To Monitor And Debug The Advanced-Mode Docsis Set-Top Gateway Feature

    To verify the detailed output for a single DSG classifier, use the show cable dsg cfr cfr-id verbose command. show cable dsg host To verify the mapping of the DSG hostnames and IP addresses on a Cisco CMTS router, use the show cable dsg host command.

  • Page 36: Show Cable Dsg Tg

    To verify all DSG static groups configured under a bundle interface, use the show cable dsg static-group bundle command in privileged EXEC mode. Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 37: Displaying Interface-Level Configurations For Advanced-Mode Dsg 1.2

    To display DSG tunnel information associated with the downstream, use the show interfaces cable dsg downstream tunnel command in privileged EXEC mode. Debugging Advanced-Mode DSG To enable debugging for A-DSG on a Cisco CMTS router, use the debug cable dsg command in privileged EXEC mode. Configuration Examples for Advanced-Mode DSG This configuration example illustrates a sample DSG network featuring these components: •...
  • Page 38 Example of Two DSG Tunnels with MAC DA Substitution In this configuration, and given the two Cisco CMTS Headends cited above, below are the two sets of DSG rules, with each set applying to each Cisco CMTS, in respective fashion.
  • Page 39 Example of Two DSG Tunnels with Full Classifiers and MAC DA Substitution In this configuration, and given the two Cisco CMTS Headends cited above, below are the two sets of DSG rules, with each set applying to each Cisco CMTS, in respective fashion.
  • Page 40 Example of One DSG Tunnel Supporting IP Multicast from Multiple DSG Servers In this configuration, and given the two Cisco CMTS Headends cited earlier in this topic, below is an example of one DSG Tunnel with multiple DSG servers supporting IP Multicast: •...

  • Page 41: Example: Enabling Dns Query

    Advanced-Mode DOCSIS Set-Top Gateway 1.2 for the Cisco CMTS Routers Example: Enabling DNS Query Example: Enabling DNS Query The following example shows how to enable a DNS query on the Cisco CMTS router: Router# configure terminal Router(config)# ip domain-lookup Router(config)# ip domain-name cisco.com Router(config)# ip name-server 131.108.1.111...
  • Page 42 The below table lists only the software release that introduced support for a given feature in a given Note software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature. Table 4: Feature Information for DOCSIS Set-Top Gateway and A-DSG for the Cisco CMTS Routers Feature Name Releases Feature Information DOCSIS Set-Top Gateway for the Cisco IOS-XE Release 3.15.0S...

  • Page 43: Cisco Network Registrar For The Cisco Cmts Routers

    Feature Information Table at the end of this document. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to http://tools.cisco.com/ITDIT/CFN/. An account on http:// www.cisco.com/...

  • Page 44: Hardware Compatibility Matrix For Cisco Cbr Series Routers

    Creating Selection Tag Scopes, page 48 • Creating Network Scopes, page 49 • Creating Policies for Class of Service or for Upgrading Cable Modem Cisco IOS Images, page 50 • CNR Steps to Support Subinterfaces, page 50 • Additional References, page 51...

  • Page 45: Cisco Network Registrar Description

    The DHCP and Domain Name System (DNS) server shown in Figure above must be the DHCP/DNS server available in Cisco Network Registrar version 2.0 or later. CNR is the only DHCP server that implements policy-based assignment of IP addresses. The headend must be a Cisco cBR-8 converged broadband router.

  • Page 46: Overview Of Dhcp Using Cnr

    • pre-dns-add-forward Overview of DHCP Using CNR Cisco Network Registrar (CNR) is a dynamic IP address management system that uses the Dynamic Host Configuration Protocol (DHCP) and assigns IP addresses to PCs and other devices on a network based on a predefined set of policies, such as class of service.

  • Page 47: How Cisco Converged Broadband Routers And Cable Modems Work

    • One of the parameters in the configuration file tells the cable modem which channel it can use. • If the assigned channel is not available on the Cisco cBR-8 router to which the cable modem is currently connected, it resets itself and comes up on the assigned channel.

  • Page 48: Dhcp Fields And Options For Cable Modems

    MCNS-security-server IP address of the security server. This should be set if security is required. See RFC 1533 for details. Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 49: Cisco Network Registrar Sample Configuration

    Cisco Network Registrar Sample Configuration Cisco Network Registrar Sample Configuration You can use the following information to set up Cisco Network Registrar in a trial configuration. The configuration describes DHCP-related setup only; it does not cover setting up DNS or configuring dynamic DNS (DDNS).
  • Page 50 24.1.1.1 scope S24.1.1.0 create 24.1.1.0 255.255.255.0 scope S24.1.1.0 addrange 24.1.1.5 24.1.1.254 scope S24.1.1.0 set policy=pPC scope S24.1.1.0 set selection-tags=tag-PC scope S10.1.1.0 create 10.1.1.0 255.255.255.0 scope S10.1.1.0 addrange 10.1.1.5 10.1.1.254 Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 51: Cable Modem Dhcp Response Fields

    If the DHCP server is on a different network that uses a relay agent, then the relay agent must set the Note gateway address field of the DHCP response. • IP address of the security server should be set if security is required Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 52: Dhcp Relay Option (Docsis Option 82)

    Telco Return Cable Modem Scripts To support telco return and two-way cable interface configurations on the same cable interface card or chassis, use these scripts: • PostClientLookup.tcl • PrePacketEncode.tcl Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 53: Placement Of Scripts

    IP addresses for each cable interface must be in sync with the CNR tool. To properly communicate with scripts in the system, use the following commands on the Cisco CMTS router: • To enable option 82, use the ip dhcp relay info option command.

  • Page 54: Configuring The System Default Policy

    Define these settings following the CNR tool documentation: • Domain name • Name servers (IP address of DNS servers) Creating Selection Tag Scopes General When you create your scope selection tags: Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

  • Page 55: Telco Return For The Cisco Cbr-8 Router

    Creating Network Scopes Following is an example for creating scopes for your network. This example assumes two Cisco cBR-8 converged broadband routers in two locations, with one cable interface card on one Cisco cBR-8 configured for telco return.

  • Page 56: Creating Policies For Class Of Service Or For Upgrading Cable Modem Cisco Ios Images

    The Cisco cBR-8 router requires management subinterfaces to route DHCP packets from CMs when they first initialize because the Cisco cBR-8 router does not know the subinterfaces they belong to until it has seen the IP addresses assigned to them by gleaning DHCP reply message from CNR.

  • Page 57: Additional References

    Although CNR can be configured with overlapping address range scopes, it cannot be used to allocate addresses from these scopes. Additional References The following sections provide references related to Cisco Network Registrar for use with the Cisco CMTS routers. Technical Assistance...
  • Page 58 Cisco Network Registrar for the Cisco CMTS Routers Additional References Cisco cBR Series Converged Broadband Routers Application—Voice and Video Configuration Guide...

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