Cisco Broadband Cable Command Reference Guide

Chapter 2 Cisco Cable Modem Termination System Commands
cable downstream override
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cable downstream override
To enable cable downstream frequency override, use the cable downstream override command in cable
interface configuration mode. To disable the override feature, use the no form of this command.
cable downstream override
no cable downstream override
Syntax Description This command has no keywords or arguments.
Defaults Cable downstream frequency override is enabled by default.
Command Modes Interface configuration (cable interface only)
Command History
Release Modification
12.0(13)SC This command was introduced.
12.1(5)EC1 This command was introduced to the EC train.
12.1(6) and 12.1(6)T This command was introduced to the main and T trains.
Usage Guidelines This command is never needed for normal operations, because downstream frequency override is
enabled by default for DOCSIS operations. However, this command can be used to disable the frequency
override feature for test and lab use, so as to force the CMs on that interface to use a particular
downstream frequency, regardless of the signal quality.
Note Because frequency override is enabled by default, this command does not appear as part of a cable
interface’s configuration section in the Cisco CMTS configuration file unless the no cable downstream
override command has been given.
Examples The following example shows how to disable the downstream frequency override feature on a particular
cable interface:
router# configure terminal
router(config)# interface cable 6/0
router(config-if)# no cable downstream override
router(config-if)# exit
router(config)#
Cisco Broadband Cable Command Reference Guide
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