Specifications

cable-modem fast-search
Bridging and Routing Features for the Cisco uBR904 Cable Modem 23
cable-modem fast-search
To enable a faster downstream search algorithm on a cable modem interface, use the cable-modem
fast-search command 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.
Default
Disabled
Command Mode
Interface configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.3 NA.
This feature speeds up the frequency search performed by the cable modem. Normally it takes the
cable modem about 30 to 50 seconds to sample 30 to 50 frequencies. The cable-modem fast-search
command 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.
Example
The following example shows how to enter the cable-modem fast-search command, starting from
global configuration mode:
uBR904(config)# interface cable-modem 0
uBR904(config-if)# cable-modem fast-search
uBR904(config-if)#
Related Commands
cable-modem compliant bridge
cable-modem downstream saved channel
cable-modem upstream preamble qpsk
interface cable-modem