two router ports flapping on a c3550-12G

[magnumpi83]

May 13 11:02:14: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/10, changed state to down
May 13 11:02:17: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/10, changed state to up
May 13 11:02:38: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.0c9f.f000 in vlan 1141 is flapping between port Gi0/10 and port Gi0/6
May 13 11:02:38: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.0c9f.f000 in vlan 1140 is flapping between port Gi0/10 and port Gi0/6

Ports 6 and 10 are the router ports. The MAC address is the wireless controller's gateway and vlan 1140 is for the user's and 1141 is the management VLANs.. Any help?

[shine pothen]

please paste the entire runing config of the 3550.

try to shut down one of the port and see if you still see the port flapping ?

on which port is the wireless controller connected?

[Mandlenkosi Nkiwane]

Are these ports connected to the same router?

Could you give us a topology of how these connections are mapped and also the configs...

By the look of things you have one mac address showing up on two different ports intermittently...

[shine pothen]

Did the issue get fixed????