Troubleshooting Wideband Cable Modems; Pinging A Wideband Cable Modem - Cisco WCM300 - Channel Bonded Cable Modem Implementation Manual

Chapter 5 Monitoring and Troubleshooting Wideband Components
Router# show hw-module bay 1/0/0 mapping wideband-channel
SPA
1/0/0
1/0/0
1/0/0
1/0/0
1/0/0
1/0/0
1/0/0
1/0/0
1/0/0
1/0/0
1/0/0
1/0/0
A channel-bonded wideband channel is associated with at least two RF channels depending on the
wideband channel's configuration. The cable rf-channel command associates an RF channel with a
wideband channel. The bandwidth percent (BW %) of each RF channel used for the wideband channel
is 100 percent by default but is configurable with the cable rf-channel command.

Troubleshooting Wideband Cable Modems

This section describes troubleshooting techniques for wideband cable modems. It includes the following
sections:
•
•
•

Pinging a Wideband Cable Modem

To determine whether a wideband cable modem or any DOCSIS cable CPE device is reachable from the
CMTS at the DOCSIS MAC layer, use the ping docsis command with either a MAC address or IP
address. For example:
Router# ping docsis 1.11.0.5
Queueing 5 MAC-layer station maintenance intervals, timeout is 25 msec:
!!!!!
Success rate is 100 percent (5/5)
OL-10705-02
WB RF
channel channel
0 0
1
1 2
3
2 4
5
3 6
7
4 8
9
5 10
11
6 12
13
7 14
15
8 16
17
9 18
19
10 20
21
11 22
23
Pinging a Wideband Cable Modem, page 5-19
Verifying That a Wideband-Capable Cable Modem is Registered as a Wideband Modem, page 5-20
Verifying Other Information for Wideband Cable Modems, page 5-21
Cisco Cable Wideband Solution Design and Implementation Guide, Release 1.0
BW %
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
Troubleshooting Wideband Components
5-19