Cisco Systems uBR7200 Series Spectrum Management Debug and Test Commands, Show Cable Hop Command

Chapter 4 Troubleshooting the System

Managing Cable Modems on the HFC Network

Sample output:

noisy1#show	cable hop
Upstream	Port	Poll Missed		Min	Missed Hop		Hop	Corr	Uncorr
Port	Status	Rate Poll		Poll	Poll	Thres	Period	FEC	FEC
		(ms) Count		Sample Pcnt		Pcnt	(sec)	Errors	Errors
Cable3/0/U0	down	1000	* * *	frequency not set			* * * 0		0
Cable3/0/U1	admindown	1000	* * *	interface is down			* * * 0		0
Cable3/0/U2	admindown	1000	* * *	interface is down			* * * 0		0
Cable3/0/U3	admindown	1000	* * *	interface is down			* * * 0		0
Cable3/0/U4	admindown	1000	* * *	interface is down			* * * 0		0
Cable3/0/U5	admindown	1000	* * *	interface is down			* * * 0		0
Cable4/0/U0	10.800 Mhz	1000	0	0	-----	100%	300	0	0
Cable6/0/U0	down	1000	* * *	frequency not set			* * * 0		0

Spectrum Management Debug and Test Commands

To enable display of frequency hopping debugging messages, enter:

debug cable freqhop

To enable display of spectrum management debugging messages, enter:

debug cable specmgmt

This command also enables display of channel width list and offer list for the show cable spectrum-groupcommand.

To force a frequency hop decision on the port or ports, enter:

test cable hop cable-if [upstream portnum]

Show Cable Hop Command

Using Cisco IOS Release 12.0(5)T1 or higher headend images, you can use the following command to obtain specific upstream interface information:

show cable hop cable-if[upstream <portnum>]

Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide

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