Specifications

cable-modem downstream saved channel
Bridging and Routing Features for the Cisco uBR904 Cable Modem 21
cable-modem downstream saved channel
To modify the saved downstream channel setting and upstream power value on a cable modem
interface, enter the cable-modem downstream saved channel command from interface
configuration mode. Use the no form of this command to remove the saved settings, which will be
resaved at the next initialization cycle.
cable-modem downstream saved channel ds-frequency us-power
no cable-modem downstream saved channel ds-frequency us-power
Syntax Description
Default
Enabled
Command Mode
Interface configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.3 NA.
This command is auto-generated by the operation of the cable MAC layer process. The MCNS
DOCSIS RFI specification requires that cable modems remember the downstream frequency and
upstream power of the last successfully ranged session. These parameters are called up as the first
downstream frequency and upstream power to use the next time the cable modem is booted. This
operation dramatically speeds up the channel search.
Use the no cable-modem downstream saved channel ds-frequency us-power command to remove
the saved frequency and power setting from the running configuration, which will be resaved at the
next initialization cycle.
Cisco recommends that this command NOT be used by end users of the Cisco uBR904 cable modem.
Example
The following example shows how to remove the downstream frequency of 91000000 Hz and the
upstream power level of 33 dBmV from the running configuration of a cable-modem interface,
starting from global configuration mode.
uBR904(config)# interface cable-modem 0
uBR904(config-if)# no cable-modem downstream saved channel 91000000 33
uBR904(config-if)#
ds-frequency Downstream channel frequency in Hz, which can be from 91000000 to 860000000.
us-power Upstream power level in decibels per millivolt (dBmV), which can be from 8 to 61.