SNMP object for Signal/Noise Ratio on Cisco UBR7100 series CMTS

[an-tech]

I've been searching for nearly a whole day now without result, so now I hope anyone here are sharper than I am.

I need to locate the SNMP object that holds the value of the signal/noise ratio for the upstream on a Cisco UBR7100 series Cable Modem Termination System.

I've spent most of this day trying to gather information online, and even tried the needle-in-a-haystack-method of trying to locate a value corresponding to the actual s/n ratio on the CMTS. However, a snmpwalk generates quite a few lines of objects, and since the s/n ratio constantly changes (not much, but enough to make searching impossible) I cannot find the value anywhere in the result of an snmpwalk.

To be sure I'm not misunderstood, the value I'm looking for, is the value shown by a 'show controllers cable 1/0 upstream'. The value I need is the line saying ie. 'SNR 30.1234 dB'.

Any help at all would be extremely appreciated!

Sincerely yours

Service Engineer

Casper Niebe

Arrownet A/S

Denmark

[rmushtaq · Accepted solution]

docsIfSigQSignalNoise from DOCS-IF-MIB, cdrqCmtsCmSigQSignalNoise from CISCO-DOCS-REMOTE-QUERY-MIB, cdxIfUpChannelInputPowerLevel from CISCO-DOCS-EXT-MIB can be looked at. It can be polled after enabling remote query.

Two links to useful Tech Tips that cover the details of using SNMP for Remote Query are:

http://www.cisco.com/warp/public/109/remote_query.shtml

http://www.cisco.com/warp/public/109/cable_snmp_faq.shtml