Cisco Systems UBR900 specifications Cable-modem fast-search

cable-modem fast-search

cable-modem fast-search

To enable a faster downstream search algorithm on a cable access router interface, use the cable-modemfast-searchcommand from interface configuration mode. Use the no form of this command to disable the downstream fast-search feature.

cable-modem fast-search

no cable-modem fast-search

Syntax Description

There are no keywords or arguments for this command.

Defaults

Disabled

Command Modes

Interface configuration

Command History

ReleaseModification

11.3 NA This command was introduced.

Usage Guidelines

This feature speeds up the frequency search performed by the cable access router. Normally it takes the cable access router about 30 to 50 seconds to sample 30 to 50 frequencies. The cable-modemfast-searchcommand can reduce this search time. However, there might be some cases where this fast-search algorithm might not perform as well as the default algorithm. Trial and error is the only way to discover how well this feature works for your environment.

Examples

The following example shows how to enter the cable-modemfast-searchcommand, starting from global configuration mode:

uBR924(config)# interface cable-modem 0

uBR924(config-if)#cable-modem fast-search

uBR924(config-if)#

Configuring the Cisco uBR900 Series Cable Access Routers 61