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RSVP-Based Video on Demand Support Over DOCSIS

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RSVP-Based Video on Demand Support Over DOCSIS

Finding Feature Information

Contents

Prerequisites for Configuring RSVP-Based Video on Demand Support Over DOCSIS

Restrictions for Configuring RSVP-Based Video on Demand Support Over DOCSIS

Information About RSVP-Based Video on Demand Support Over DOCSIS

How to Configure RSVP-Based Video over DOCSIS

Configuring the RSVP Service Class

Displaying the RSVP-DOCSIS Flow Data

Configuration Examples for RSVP-Based Video over DOCSIS

Configuring the RSVP Service Class: Example

Displaying the RSVP-DOCSIS Flow Data: Example

Additional References

Related Documents

Standards

MIBs

RFCs

Technical Assistance

Command Reference

Feature Information for RSVP-Based Video over DOCSIS


RSVP-Based Video on Demand Support Over DOCSIS

First Published: December 17, 2008
Last Updated: December 17, 2008

The Cisco universal broadband router supports Video on Demand (VoD) over DOCSIS (Data Over Cable Service Interface Specification) services using a Resource ReSerVation Protocol (RSVP) bandwidth request from the VoD server. RSVP is used by the Cable Modem Termination System (CMTS) to request video data from the network for specific application data flows.

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release.

Use Cisco Feature Navigator to find information about platform support and Cisco IOS, Catalyst OS, and Cisco IOS XE software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

Contents

•Prerequisites for Configuring RSVP-Based Video on Demand Support Over DOCSIS

•Restrictions for Configuring RSVP-Based Video on Demand Support Over DOCSIS

•Information About RSVP-Based Video on Demand Support Over DOCSIS

•How to Configure RSVP-Based Video over DOCSIS

•Configuration Examples for RSVP-Based Video over DOCSIS

•Additional References

•Command Reference

•Feature Information for RSVP-Based Video over DOCSIS

Prerequisites for Configuring RSVP-Based Video on Demand Support Over DOCSIS

Table 1shows the hardware compatibility prerequisites for RSVP-Based video on demand support over DOCSIS.

Table 1 Cable Hardware Compatibility Matrix for RSVP-Based Video on Demand Support Over DOCSIS

CMTS Platform
Processor Engine
Cable Interface Line Cards

Cisco uBR10012 Universal Broadband Router

Cisco IOS Release 12.2(33)SCB

•PRE2

•PRE4

Cisco uBR10-MC5X20S/U/H


The software prerequisites for the RSVP-based video on demand support over DOCSIS are:

•This feature does not require DOCSIS3.0 setup.

•The cable modems should be compliant with DOCSIS 1.1 or higher.

•The ip rsvp bandwidth command on the cable bundle interface should provide actual reserved bandwidth available.

•This feature is supported on all CMTS platforms.

•The ip rsvp bandwidth command should be configured on the WAN interface on the CMTS.

•IP routing is configured on CMTS so that the bundle interface can be reached from the video source.

Restrictions for Configuring RSVP-Based Video on Demand Support Over DOCSIS

•RSVP implementation supports IPv4 only.

•Upstream service flow creation is not supported.

•RSVP receiver proxy supports controlled-load service only.

•RSVP over MPLS VPN is not supported.

Information About RSVP-Based Video on Demand Support Over DOCSIS

RSVP is used by a host to request specific quality of service (QoS) from the network for particular application data streams or flows. RSVP is used by the CMTS to deliver video requests along the data path of the flows and maintains the state to provide the requested service. RSVP requests generally result in resources being reserved in each node along the data path.

Figure 1 Configuring RSVP-Based Video on Demand Support Over DOCSIS

The following process is used to reserve DOCSIS resources on CMTS based on RSVP:

1. The CMTS intercepts the RSVP requests that are intended for the set-top boxes in the CMTS service area and reserves DOCSIS resources.

2. When a path message reaches the CMTS, it determines the DOCSIS resources required.

3. The CMTS creates a service flow and classifier to the cable modem.

4. The CMTS responds with a RSVP reserve message in the direction of the streamer.

How to Configure RSVP-Based Video over DOCSIS

This section describes the configuration tasks that are performed when using the RSVP-based video over DOCSIS feature on the Cisco CMTS platforms. You can use the command-line interface (CLI) commands to complete the configuration.

1. Configuring the RSVP Service Class

2. Displaying the RSVP-DOCSIS Flow Data

Configuring the RSVP Service Class

This section describes the configuration tasks to configure the RSVP service class.

To specify the default service class for RSVP, use the cable rsvp default-scn command in global configuration mode. This command is used to specify DOCSIS service flow parameters such as activity time-out and service-flow attribute mask.

SUMMARY STEPS

1. enable

2. configure terminal

3. cable rsvp default-scn service-class name

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

enable

Example:

Router> enable

Enables privileged EXEC mode. Enter your password if prompted.

Step 2 

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 3 

cable rsvp default-scn service-class name

Example:

Router(config)# cable rsvp default-scn RSVPClass

Specifies the default service class for RSVP.

•service-class name— The DOCSIS service class name.

Displaying the RSVP-DOCSIS Flow Data

This section describes the tasks to display the RSVP-DOCSIS flow data. The flow data contains details of the RSVP session and DOCSIS service flow identifier data structure.

SUMMARY STEPS

1. enable

2. configure terminal

3. show cable rsvp flow-db [mac-addr]

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

enable

Example:

Router> enable

Enables privileged EXEC mode. Enter your password if prompted.

Step 2 

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 3 

show cable rsvp flow-db [mac-addr]

Example:

Router(config)# show cable rsvp flow-db

Displays contents of the RSVP to DOCSIS service flow mapping database.

•mac-addr—(Optional) The MAC address of the specific cable modem in hexadecimal format.

Configuration Examples for RSVP-Based Video over DOCSIS

This section describes a sample configuration example for configuring the RSVP-based Video over DOCSIS feature.

•Configuring the RSVP Service Class: Example

•Displaying the RSVP-DOCSIS Flow Data: Example

Configuring the RSVP Service Class: Example

The following example shows how to configure the RSVP service class. This command is used to specify DOCSIS service flow parameters such as latency and service-flow attribute mask. 

Router(config)# cable rsvp default-scn RSVPClass

Displaying the RSVP-DOCSIS Flow Data: Example

The following example displays the RSVP-DOCSIS flow data such as contents of the RSVP session and handle to DOCSIS service flow identifier data structure. 

Router(config)# show cable rsvp flow-db 

CM Count   : 1

Flow Count : 1

Mac Address    Src IP          Src   Dest IP         Dest  Pr Sfid  Dir Handle  

                               Port                  Port  ot           (Hex)

0019.474a.c5f6 200.0.0.1       1000  40.1.1.62       1000  6  11    DS  7000406

!

Table 2 describes the significant fields shown in the display.

Table 2 cable rsvp flow-db Field Descriptions 

Field
Description

Mac Address

The MAC address of the specific cable modem.

Src IP

RSVP path source IP address.

Src Port

RSVP path source port number.

Dest IP

Destination IP address.

Dest Port

Destination port number.

Prot

IP protocol type.

Sfid

Service flow ID.

Dir

Direction of the DOCSIS service flow.


Additional References

The following sections provide references related to configuring RSVP-based Video over DOCSIS.

Related Documents

Related Topic
Document Title

CMTS cable commands

Cisco IOS CMTS Cable Command Reference http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html

Cisco uBR10012 Universal Broadband Router Documentation

Cisco uBR10012 Universal Broadband Router Hardware http://www.cisco.com/en/US/docs/cable/cmts/ubr10012/installation/guide/hig.html

Cisco uBR10012 Universal Broadband Router Software Configuration Guide http://www.cisco.com/en/US/docs/cable/cmts/ubr10012/configuration/guide/scg.html

Cisco uBR10012 Universal Broadband Router Release Notes

http://www.cisco.com/en/US/products/hw/cable/ps2209/prod_release_notes_list.html


Standards

Standard
Title

None

 

MIBs

MIB
MIBs Link

None

To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

http://www.cisco.com/go/mibs


RFCs

RFC
Title

RFC 2205

Resource ReSerVation Protocol

RFC 2210

The Use of RSVP with IETF Integrated Services


Technical Assistance

Description
Link

The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies.

To receive security and technical information about your products, you can subscribe to various services, such as the 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.

http://www.cisco.com/support


Command Reference

For information about commands, see the Cisco IOS CMTS Command Reference at http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html. For information about all Cisco IOS commands, use the Command Lookup Tool at http://tools.cisco.com/Support/CLILookup or the Cisco IOS Master Command List, All Releases, at http://www.cisco.com/en/US/docs/ios/mcl/allreleasemcl/all_book.html.

Feature Information for RSVP-Based Video over DOCSIS

Table 3 lists the features in this module and provides links to specific configuration information. Only features that were introduced or modified in Cisco IOS Release 12.2(33)SCB or a later release appear in the table.

Not all commands may be available in your Cisco IOS software release. For release information about a specific command, see the command reference documentation.

Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which Cisco IOS, Catalyst OS, and Cisco IOS XE software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

Note Table 3 lists only the Cisco IOS software release that introduced support for a given feature in a given Cisco IOS software release. Unless noted otherwise, subsequent releases of that Cisco IOS software release also support that feature.

Table 3 Feature Information for RSVP-Based Video over DOCSIS

Feature Name
Releases
Feature Information

RSVP-Based Video on Demand Support Over DOCSIS

12.2(33)SCB

The Cisco universal broadband router supports VoD over DOCSIS services using a RSVP bandwidth request from the VoD server. RSVP is used by the CMTS to request video data from the network for specific application data flows.

The following sections provide information about this feature:

•Configuring the RSVP Service Class

•Displaying the RSVP-DOCSIS Flow Data


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