Cisco Systems UBR900 User Manual
cable-modem downstream saved channel
Configuring the Cisco uBR900 Series Cable Access Routers 59
cable-modem downstream saved channel
To modify the saved downstream channel setting and upstream power value on a cable access router
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.
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
Defaults
Enabled
Command Modes
Interface configuration
Command History
Usage Guidelines
This command is auto-generated by the operation of the cable MAC layer process. The 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.
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.
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 uBR900 series cable
access router.
access router.
Examples
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.
upstream power level of 33 dBmV from the running configuration of a cable-modem interface,
starting from global configuration mode.
uBR924(config)# interface cable-modem 0
uBR924(config-if)# no cable-modem downstream saved channel 91000000 33
uBR924(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.
Release
Modification
11.3 NA
This command was introduced.