Verifying That A Wideband Channel Is Configured Correctly - Cisco WCM300 - Channel Bonded Cable Modem Implementation Manual

Troubleshooting Wideband Components

Verifying That a Wideband Channel is Configured Correctly

To verify whether a wideband channel is configured correctly, use the show hw-module bay command
with the wideband-channel keyword and the association, config, or mapping keywords. The following
examples show the output for association keyword:
Router# show hw-module bay 1/0/0 association wideband-channel 0
WB
channel
Wideband-Cable1/0/0:0
In the preceding output, the Bundle num field indicates the virtual bundle interface to which the
wideband channel belongs. For a description of each field in the preceding output, see the
hw-module bay" section on page
The wideband channel and the primary downstream channel (NB channel) must be members of the same
virtual bundle interface. The CMTS running configuration file shows the virtual bundle (cable bundle)
for the primary downstream channel (Cable5/0/1):
interface Cable5/0/1
no ip address
load-interval 30
no cable packet-cache
cable bundle 123
cable downstream channel-id 120
...
The downstream modular-cable rf-channel command specifies the RF channels that are available for
wideband channels on a fiber node. If a wideband channel attempts to use an RF channel that has not
been made available for use on the fiber node, a misconfiguration error occurs. In this case, the show
hw-module bay command displays the following error message:
Router# show hw-module bay 1/0/0 association wideband-channel
WB
channel
Wideband-Cable1/0/0:0
The following example shows the show hw-module bay output for the config keyword:
Router# show
WB
channel
Wideband-Cable1/0/0:0
Wideband-Cable1/0/0:1
Wideband-Cable1/0/0:2
Wideband-Cable1/0/0:3
Wideband-Cable1/0/0:4
Wideband-Cable1/0/0:5
Wideband-Cable1/0/0:6
Wideband-Cable1/0/0:7
Wideband-Cable1/0/0:8
Wideband-Cable1/0/0:9
Wideband-Cable1/0/0:10
Wideband-Cable1/0/0:11
In the preceding output, each wideband channel that will be used should be configured as a member of
a virtual bundle interface. Channels 8 through 11 are not members of a virtual bundle interface.
The following example shows the show hw-module bay output for the mapping keyword:
Cisco Cable Wideband Solution Design and Implementation Guide, Release 1.0
5-18
BG Bundle
ID num
24
123
5-7.
BG Bundle
ID num
RF channel mismatch with Fiber Node 1
hw-module bay 1/0/0 config wideband-channel
BG Bundle
ID num
24 123
25 123
26 123
27 123
28 123
29 123
30 123
31 123
32 0
33 0
34 0
35 0
Chapter 5 Monitoring and Troubleshooting Wideband Components
NB NB chan Reserved
channel ID CIR
Cable5/0/1 120 0
NB NB chan Reserved
channel ID CIR
WB Host Primary
Slot/Subslot BG
5/0 Yes
5/0 Yes
5/0 Yes
5/0 Yes
5/0 Yes
5/0 Yes
5/0 Yes
5/0 Yes
5/0 Yes
5/0 Yes
5/0 Yes
5/0 Yes
Avail
CIR
0
"show
Avail
CIR
OL-10705-02