Cisco Systems uBR7200 Series manual Enable Snmp, Configure Remote Modem Monitoring

Chapter 4 Troubleshooting the System

Polling Cable Modems

Enable SNMP

Command	Purpose
Router(config)# snmp-server manager	Opens the SNMP manager
Router(config)# snmp-server community [Community String]	Defines user permissions
[Permissions]

Configure Remote Modem Monitoring

Command	Purpose
Router(config)# cable modem remote-query [polling interval]	Specifies how often SNMP polls the modem and
[Community string]	allows you to configure access

Verifying Remote Query Information

To display information from a queried modem, enter the show cable modem remote-querycommand.

	R7732-01-uBR7246#sh cable modem		remote-query
	IP address	MAC address	S/N	US	DS	Tx Time	Micro (dB) Modem
			Ratio	Power	Power	Offset	Reflection State
	5.108.1.2	0010.4bd7.ccf2	0.0	0.0	0.0	0	0	offline
	5.109.1.2	0000.0000.0022	0.0	0.0	0.0	0	0	offline
	5.110.1.2	0000.0000.0023	0.0	0.0	0.0	0	0	offline
	5.108.1.5	0000.0000.0026	0.0	0.0	0.0	0	0	offline
	5.108.1.4	0000.0000.0024	0.0	0.0	0.0	0	0	offline
	5.108.1.3	0000.0000.0025	0.0	0.0	0.0	0	0	offline
Tips	To display debugging information, enter the debug cable remote-querycommand.

See the following for an example debug message of a successful poll of a cable modem:

router# debug cable remote-queryremote-query debugging is on

.

For IP address 209.165.200.223

Nov 10 15:56:50.241: docsIfSignalQualityEntry.5.4 = 380

Nov 10 15:56:50.241: docsIfMibObjects.2.2.1.3.2 = 360

Nov 10 15:56:50.245: docsIfDownstreamChannelEntry.6.4 = -30

Nov 10 15:56:50.245: docsIfUpstreamChannelEntry.6.3 = 12422

Nov 10 15:56:50.249: docsIfSignalQualityEntry.6.4 = 0 Nov 10 15:56:50.477:

See the following for an example debug message when the waiting queue at the CMTS is empty:

SNMP proxy exec got event, but queue is empty

See the following for an example debug message when you try to modify the polling interval or community string while polling in is progress:

Community string if modified will not be reflected

Note The polling interval will be changed. To change the community string, you must unconfigure the snmp-server community command and reconfigure it with the new community string.

Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide

78-5897-01 4-17