4-17
Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
78-5897-01
Chapter4 Troubleshooting the System Polling Cable Modems
Enable SNMPConfigure Remote Modem MonitoringVerifying Remote Query Information
Todisplay 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 thedebug 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 thesnmp-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