Cisco Systems uBR7200 Series Instrukcja Naprawy Pobierz pdf (Strona 17)

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Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide

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Chapter 4 Troubleshooting the System

Polling Cable Modems

Enable SNMP

Configure Remote Modem Monitoring

Verifying Remote Query Information

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

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-query command.

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

router# debug cable remote-query

remote-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.

Command Purpose

Router(config)# snmp-server manager

Opens the SNMP manager

Router(config)# snmp-server community [

Community String

]

[

Permissions

]

Deﬁnes user permissions

Command Purpose

Router(config)# cable modem remote-query

[polling interval]

[Community string]

Speciﬁes how often SNMP polls the modem and

allows you to conﬁgure access

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