I am having a problem that I cant seem to find anything wrong with. The setup is as following.
A 5508 with interface LAG. 2 of a total of 4 interfaces are connected to a Nexus 2k that is connected to a 5k fabric and the other 2 5508 interface are connected to another set of 2k-5k nexus and the 5ks are also interconnected.
The issue is that the 5508 controller is complaining that it has decteted a duplicate IP being used by MAC H:H:H which is in fact the MAC of it self. So basically it can see it self as another device via the LAG.
The setup is working and there is no problem reaching the controller in anyway. I dont know about parsing traffic or APs as this is a 3rd backup controller so I havnt anything to test with but when the controller was connected to a 6500 setup running VSS there was no problem so I was just wondering if any of you had run into a similar problem?
I know the most likely place to look is at the nexus but that setup is a by the book design and configuration and there are no logs that indicate anything on any device other than the WLC is reporting duplicate IP.
You are correct. But it sounds like the Etherchannel on the Nexus is either not configured or not configured correctly. Make sure the Etherchannel is configured Mode On, ie no LACP. The WLC can be configured as 8 individual ports or a single 8 port Etherchannel.
Were you ever able to get this issue resolved? I am just wondering if this setup is supported at this time. I am looking at connecting a WLC 5508 LAG via a VPC on 2 2K's that are Single homed to upstream 5548's.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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