user manual

Configuring Headend Broadband Access Router Features
Troubleshooting Using Cable Flap Lists
MC-606
Cisco IOS Multiservice Applications Configuration Guide
Setting Cable Flap List Size
You can specify the maximum number of cable modems that can be listed in the cable flap list tables.
The valid range is from 1 to 8192 cable modems. The default is 8192 cable modems.
To specify the maximum number of cable modems that can be recorded in the flap list, use the following
command in global configuration mode:
Verifying Cable Flap List Size
To verify the cable flap list size, enter the show cable flap list command:
CMTS01# show cable flap list
Mac Addr CableIF Ins Hit Miss CRC P-Adj Flap Time
0010.7b6b.5d1d C3/0 U0 0 688 169 0 0 3 Nov 5 12:28:50
0010.7b6b.5e15 C3/0 U0 1 707 185 0 0 5 Nov 5 12:29:52
0010.7b6b.5e27 C3/0 U0 1 707 198 0 0 5 Nov 5 12:29:55
0010.7b6b.5d29 C3/0 U0 1 709 205 0 0 5 Nov 5 12:29:52
0010.7b6b.5e2b C3/0 U0 1 710 204 0 0 7 Nov 5 12:30:16
Clearing Cable Flap List
To remove a single cable modem from the flap list or to remove all cable modems from the flap list, use
one of the following commands in global configuration mode:
Command Purpose
CMTS01(config)# cable flap-list size number
Specifies the maximum size of the flap list.
Command Purpose
CMTS01(config)# clear cable flap-list mac-addr
or
CMTS01(config)# clear cable flap-list all
Clears the entries in the cable flap list for the cable modem with
this MAC address.
Clears the entries for all of the cable modems in the flap list.