Cisco WLC polling issue

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1

Due to a bug in Cisco WLC (Cisco won’t fix) LibreNMS suddenly stopped polling our WLC.

Error message:
Caching OIDs: entPhysicalDescrSNMP[‘/usr/bin/snmpbulkwalk’ ‘-v2c’ ‘-c’ ‘COMMUNITY’ ‘-OQUs’ ‘-m’ ‘ENTITY-MIB’ ‘-M’ ‘/home/librenms/mibs:/home/librenms/mibs/cisco’ ‘udp:HOSTNAME:161’ ‘entPhysicalDescr’]
Exitcode: 1
Error: OID not increasing: entPhysicalDescr.1008

= entPhysicalDescr.936

The workaround is to use -Cc in snmpwalk, can this option be set for WLC devices only in LibreNMS?

2

Been seeing this popping up a few poor devices. I think I have an idea for how to cleanly work around it now, but will take some time to implement.

3

Ok, looking forward to it, thanks!

4

That was fast, thank you very much, seems to be working again after commit: Fix Cisco WLC AP cleanup (#13615)

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