I'm lately seeing very frequent STP topology changes on all my switches. At times its two minutes apart and at times its 30 minutes. I have it all day. It cant be a flapping interface somewhere, because i'd see even more frequent changes. In this normal?
Is it possible to see from which switchport interface the STP topology change originated? If there is an issue id like to track it down. I have a whole lot of switches on my network, but if i could track the source interface on each switch, i could zero in on the issue.
<189> JUL 10 14:30:34 192.168.2.254-1 TRAPMGR[124139968]: traputil.c(611) 947261 %% Spanning Tree Topology Change: 0, Unit: 1
<189> JUL 10 14:32:17 192.168.2.254-1 TRAPMGR[124139968]: traputil.c(611) 947835 %% Spanning Tree Topology Change: 0, Unit: 1
<189> JUL 10 14:37:03 192.168.2.254-1 TRAPMGR[124139968]: traputil.c(611) 949421 %% Spanning Tree Topology Change: 0, Unit: 1
<189> JUL 10 14:43:31 192.168.2.254-1 TRAPMGR[124139968]: traputil.c(611) 951568 %% Spanning Tree Topology Change: 0, Unit: 1
<189> JUL 10 15:24:54 192.168.2.254-1 TRAPMGR[124139968]: traputil.c(611) 965234 %% Spanning Tree Topology Change: 0, Unit: 1
<189> JUL 10 15:36:19 192.168.2.254-1 TRAPMGR[124139968]: traputil.c(611) 969010 %% Spanning Tree Topology Change: 0, Unit: 1
<189> JUL 10 15:41:29 192.168.2.254-1 TRAPMGR[124139968]: traputil.c(611) 970728 %% Spanning Tree Topology Change: 0, Unit: 1