I've been trying to track down an issue with STP in one of our branch offices, for some reason STP has an immense amount of STP changes logged;
i.e
Topology Change Detected: FALSE Topology Change: FALSE
Number of Topology Changes: 4974700
Time Since Last Topology Change: 42s
It's worth to note that we have a mixed environment with HP's and EXTREME's, does this config look correct ?
Stpd: s1 Stp: ENABLED Number of Ports: 46
Rapid Root Failover: Disabled
Operational Mode: 802.1W Default Binding Mode: EMISTP
802.1Q Tag: (none)
Ports: 1:1*,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1:10,1:11,
1:12,1:13,1:14,1:15,1:16,1:17,1:18,1:19,1:20,1:21,
1:22,1:23,1:24,2:1*,2:3,2:4,2:5,2:6,2:7,2:8,
2:9,2:10,2:11,2:12,2:13,2:14,2:15,2:16,2:17,2:18,
2:19,2:20,2:21,2:22,2:23,2:24
Participating Vlans: Default
Auto-bind Vlans: Default
Bridge Priority: 28672
BridgeID: 70:00:02:04:96:51:b9:fd
Designated root: 70:00:02:04:96:51:b9:fd
RootPathCost: 0 Root Port: ----
MaxAge: 20s HelloTime: 2s ForwardDelay: 15s
CfgBrMaxAge: 20s CfgBrHelloTime: 2s CfgBrForwardDelay: 15s
Topology Change Time: 35s Hold time: 1s
Topology Change Detected: FALSE Topology Change: FALSE
Number of Topology Changes: 4974700
Time Since Last Topology Change: 192s
ON AN HP:
HP-2848-LA-CAR-R8-1# show spanning-tree
Rapid Spanning Tree (RSTP) Information
STP Enabled : Yes
Force Version : RSTP-operation
Switch Priority : 32768 Hello Time : 2
Max Age : 20 Forward Delay : 15
Topology Change Count : 405,614
Time Since Last Change : 4 mins
Root MAC Address : 020496-51b9fd
Root Path Cost : 22000
Root Port : 43
Root Priority : 28672
Any ideas?