On Fri, Mar 26, 2010 at 11:47 PM, Cord MacLeod <[email protected]>wrote:
> 3 days ago traffic started showing up on the trunk port connecting my top > of rack switches. Each of these switches has it's own better trunk path to > the root bridge. I can't see why any traffic at all would traverse these > links unless the other trunk on g0/45 was down, which it isn't. Also, > spanning tree doesn't claim any topology changes. > > switch3#sh spanning-tree root port > VLAN0001 GigabitEthernet0/45 > VLAN0100 GigabitEthernet0/45 > VLAN0101 GigabitEthernet0/45 > VLAN0102 GigabitEthernet0/45 > VLAN0120 GigabitEthernet0/45 > VLAN0200 GigabitEthernet0/45 > VLAN0231 GigabitEthernet0/45 > VLAN0250 GigabitEthernet0/45 > VLAN0321 GigabitEthernet0/45 > VLAN0450 GigabitEthernet0/45 > VLAN0777 GigabitEthernet0/45 > VLAN0888 GigabitEthernet0/45 > switch3# > > All vlans read same the Root and Desg port. > > VLAN0101 > Spanning tree enabled protocol ieee > Root ID Priority 24677 > Address 0017.e1d6.e111 > Cost 4 > Port 45 (GigabitEthernet0/45) > Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec > > Bridge ID Priority 32869 (priority 32768 sys-id-ext 101) > Address 001e.1494.4000 > Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec > Aging Time 300 > > Interface Role Sts Cost Prio.Nbr Type > ---------------- ---- --- --------- -------- > -------------------------------- > Gi0/45 Root FWD 4 128.45 P2p > Gi0/46 Desg FWD 4 128.46 P2p > > Any ideas? > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > Have you checked the type of traffic traversing the trunk between the top of rack switches? Perhaps that could give you a clue as to why this is happening. ( Maybe some kind of broadcast traffic?). -Yuri _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
