Cisco Systems uBR7200 Series manual Set Cable Flap List Aging, Set Cable Flap List Insertion Time

Chapter 4 Troubleshooting the System

Troubleshooting Using Cable Flap Lists

Set Cable Flap List Aging

You can specify the number of days to record and retain flapping activity on cable modems currently in the flap-list table. This value is known as the age of the flap list. The valid range is from 1 to 60 days.

To set the age of the flap list, use the following command in global configuration mode.

Table 4-21 Instructions to Set Cable Flap List Aging

Command	Purpose
CMTS01(config)# cable flap-list aging days	Specify the number of days to record and retain
	flapping activity for the cable modems connected to
	this Cisco uBR7200 series.

Verify Cable Flap List Aging

To verify that cable flap list aging is set, 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 Insertion Time

You can set the cable flap list insertion time. When a cable modem makes an insertion request more frequently than the amount of insertion time defined by this command, the cable modem is placed in the flap list for activity recording. The valid range is from 60 to 86400 seconds.

To set the cable flap list insertion time, use the following command in global configuration mode.

Table 4-22 Instructions to Set Cable Flap List Insertion Time

Command	Purpose
CMTS01(config)# cable flap-list insertion-time seconds	Specify the insertion time in seconds. Any cable
	modem that makes an insertion request more
	frequently than this period of time is placed in the
	flap list.

Verify Cable Flap List Insertion Time

To verify cable flap list insertion time, 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
	Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
78-5897-01										4-41