1 of 4 bundled uplink ports in portchannel shown in RED text was shutdown deliberately during this time the Prime Infra 1.3 reports that APs was disassociated from the controller and 1 minute later Prime Infra reports that the APs was now associated to the controller without touching any devices.
Is this a normal behaviour of a CAPWAP? If not then, what should I do?
What is the load-balancing mechanism of your switch etherchannels ? "show etherchannel load-balance" should tells you this.
If AP to WLC capwap traffic went through the interface you shutdown, then there is possibility your AP lost connectivity to WLC momentarily. But should not take that long to revert traffic to any other interfaces.
You can do a test like this. Enable Telnet for one your AP (via WLC GUI : Wireless -> select your AP -> Advanced -> tick Telnet checkbox). Then telnet to AP & ping your WLC IP from there. Then shutdown one of your (out of 4) your switch etherchannel interface & see whether you will see ping drops for short period of time). If packet drops see how many drops before getting the connectivity back.
This is the preferred load balancing method you should use. This will help AP<-----> WLC traffic always goes through the same physical link of your ether channel.
To confirm what happen to ap registration, you have to do a test like I mentioned earlier & get the AP console output while your are doing this test. It will prove whether AP disassociate when a physical interface goes down in a etherchannel which carry the CAPWAP traffic.
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
Please feel ...
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...