- Bronze, 100 points or more
I did quite abit of work on our wireless network last night and I'm seeing alot of these logs on our core switch after the work...
069130: Feb 16 12:36:20 CST: %SW_MATM-4-MACFLAP_NOTIF: Host 0018.de81.37ed in vlan 140 is flapping between port Gi1/0/37 and port Po2
069131: Feb 16 12:37:44 CST: %SW_MATM-4-MACFLAP_NOTIF: Host 0021.5c46.12cd in vlan 140 is flapping between port Po2 and port Gi1/0/37
069132: Feb 16 12:39:10 CST: %SW_MATM-4-MACFLAP_NOTIF: Host 001d.e058.f78b in vlan 140 is flapping between port Gi1/0/37 and port Po1
The network here is in the shape of a "V" using 3750-E stacks with the bottom of the "V" being the core 3750-E stack doing the routing for our vlan's. I have 20Gig channels (LACP) creating the "V" between the stacks...Po1 and Po2. I have about 20 1252's and six 1131's connecting back to a 4404 controller...the controller is connected to port 1/0/37 on the core stack.
My vlan's are..
900 - Management vlan
140 - secure wireless
144 - employee guests
145 - guest
I setup our guest networks and H-REAP local switching last night. All wireless networks seem to work fine including the web authentication page for my guest networks. I configured the controller switch interface as a trunk, native vlan 900, and allowed the four vlan's above on the trunk. I did the same to all my AP's...configured the switch interfaces as trunks, native vlan 900, and allowed the four vlan's above on the trunk.
All the AP's were set to H-REAP local switching, native vlan 900 on the controller H-REAP page and the VLAN ID's are correct on the three SSID's I have.
I initally had LAG configured on the controller (this is the last item I did) when I noticed the logs. I removed the three additional interfaces from LAG on the switch, removed the port-channel etc... but the flapping continues.
Did I do something wrong???