I came into a site where the controller would go down every so often. Found that they had the Portchannel Mode set to Active, so I changed it to On, and it's good now. What i also found is that they had set the GigE ports to be access ports, not trunks which I thought was odd, so i made them trunks and tagged the Management interface. Everything works for about 5 minutes, then loss of connectivity. Just starting my troubleshooting process, but thought i would canvass the community to see f it was something obvious.
"spanning tree portfast trunk" should be the correct syntax in new config. But I do not think that would be a reason to connectivity go down. Also I noticed some odd vlans (like 1001) is in the allowed list. What do you observe when connectiviey is lost, is physical interface go down or remain up ?
Anyway provide following output to have a look
WLC: "show interface summary"
WLC: "show lag summary"
WLC: "show interface detailed management"
SW: "sh etherchannel summary"
SW: "show run interface x/x" where x/x are members of portchannel
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...