I am using WCS 18.104.22.168 and WLC 22.214.171.124., and SNMP just stopped working last Friday. We had a situation where a user created several hundred ID's, in WCS, then deleted them and created similar ones again, and I think the database may have been corrupted somehow. I have erased the invalid ID's directly on the WLC, and they stay in sync now for new ID's, but the overnight sync, and the config audit both fail with SNMP error messages. SNMP exception while syncing with WLC from the Guest Account Sync task, and Failed for all devices from the config sync. I found the error below in the log, bit I have no idea about how to fix it.
5/29/10 01:00:00.136 INFO[stspoll]  Configuration Sync for device 126.96.36.199 started. 5/29/10 01:00:09.387 ERROR[snmpmed]  SNMP Operation Error: Table too large for class LocalNetUser 5/29/10 01:00:09.387 INFO[stspoll]  Configuration Sync for device 188.8.131.52 failed with reason : MEDIATION-1,Table too large, possible agent loop,LocalNetUser 5/29/10 01:00:09.387 TRACE[com.aes]  [ThreadPoolCallbackImpl:onTaskException] THROW com.cisco.server.common.errors.SnmpOperationException: MEDIATION-1,Table too large, possible agent loop,LocalNetUser
Did you try to refresh the config from the WLC and did you delete the old entries or did you retain them. this might be the reason you see these errors. On WCs you can manually run an audit to see what differences you have between the two.
Good to know... I was once told by TAC that as long as the WCS and WLC code train are on the same main version I should be fine. Since it is based off the main code train and the upgrades are usually certain bug fixes or enhancements. Seems like every new code the comes out on the WLC requires the WCS to be upgraded nowadays. So even if the 184.108.40.206 is ED, WCS 220.127.116.11 is also ED, you would need to upgrade to WCS 18.104.22.168 or would you suggest 22.214.171.124 MD?
With newer WLC release, the mib do change and the WCS needs to be aware of those changes. Hence the WCS version needs to be released after the WLC code and not the other way around, so in your case, we need to upgrade WCS.
I do encourage you to run the latest and greatest WCS to support the WLC version you have.
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
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I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...