Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

two router ports flapping on a c3550-12G

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?

 

3 REPLIES

please paste the entire

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?

Are these ports connected to

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...

 

Did the issue get fixed????

Did the issue get fixed????

33
Views
0
Helpful
3
Replies
CreatePlease to create content