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Cisco Broadband Cable Command Reference Guide
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Chapter 2 Cisco CMTS Configuration Commands
cable dsg keepalive
cable dsg keepalive
To enable keepalive messages over DOCSIS Set-Top Gateway (DSG) tunnels on all cable interfaces, use
the
cable dsg keepalive
command in global configuration mode. To disable DSG keepalives (the
default), use the
no
form of this command.
cable dsg keepalive
no cable dsg keepalive
Syntax Description
This command has no arguments or keywords.
Defaults
Keepalive messages are disabled (
no cable dsg keepalive
).
Command Modes
Global configuration
Command History
Usage Guidelines
By default, the Cisco CMTS does not send keepalive messages on any DSG tunnels. When keepalives
are enabled using the
cable dsg keepalive
command, the Cisco CMTS sends one keepalive message each
second on each DSG tunnel on each downstream. In Cisco IOS Release 12.2(15)BC2, the keepalive
packet is a null packet.
Note
Do not enable DSG keepalive messages unless your application and DSG set-top boxes require them.
Tip
Use the
show cable dsg
command to display whether keepalive messages are enabled.
Examples
The following example shows how to enable DSG keepalives on all cable interfaces on the router:
Router#
configure terminal
Router(config)#
cable dsg keepalive
Router(config)#
exit
Router#
The following example shows how to disable DSG keepalives on all cable interfaces, which is the default
configuration:
Router#
configure terminal
Router(config)#
no cable dsg keepalive
Router(config)#
exit
Router#
Release
Modification
12.2(15)BC2
This command was introduced for the Cisco uBR7100 series and
Cisco uBR7246VXR routers.