System information

Configuring the CMTS
6-99
Viewing Flap List Statistics to Identify Network Health
This section describes the different show cable flap list sorting options and describes
the command output fields. CMs appear in the flap list when any of the following
conditions are detected:
• The CM re-registers more frequently than the configured insertion time.
• Intermittent keepalive messages are detected between the BSR and the CM.
• The CM upstream transmit power changes beyond the configured power adjust
threshold.
Follow these steps to view flap list statistics by using different sorting options:
1. To view all flap list statistics for CMs, use the show cable flap list command in
Privileged EXEC mode as shown below:
MOT#show cable flap-list
The following output displays:
Figure 6-8 show cable flap-list Command Output
2. To sort the flap list statistics by the CM flap, use the show cable flap-list
sort-flap command in Privileged EXEC mode as shown below:
MOT#show cable flap-list sort-flap
3. To sort the flap list statistics by the time at which the CM flap occurred, use the
show cable flap-list sort-time command in Privileged EXEC mode as shown
below:
MOT#show cable flap-list sort-time
4. To sort the flap list statistics by the cable upstream interface on which the CM
flap occurred, use the show cable flap-list sort-interface command in Privileged
EXEC mode as shown below:
MOT#show cable flap-list sort-interface