Cisco Systems uBR7200 Series manual Set Cable Flap List Size, Clear Cable Flap List

Chapter 4 Troubleshooting the System

Troubleshooting Using Cable Flap Lists

Verify Cable Flap List Miss Threshold

To verify the cable flap list miss threshold, 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

Set 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.

Table 4-25 Instructions to Set Cable Flap List Size

Command	Purpose
CMTS01(config)# cable flap-list size number	Specify the maximum size of the flap list.

Verify 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

Clear 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.

Table 4-26 Instructions to Clear Cable Flap List

Command	Purpose
CMTS01(config)# clear cable flap-list mac-addr	Clear the entries in the cable flap list for the cable
	modem with this MAC address.
CMTS01(config)# clear cable flap-list all	Clear the entries for all of the cable modems in the
	flap list.

Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide

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