Spanning tree strange behaviou

Hi experts,

I have a strange case in which the two connected switches are working as a
root for the same VLAN??

SW1#sho spanning-tree vlan 1

VLAN0001

  Spanning tree enabled protocol ieee

  Root ID Priority 32769

             Address ec30.91b7.b000

             This bridge is the root

             Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

  Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)

             Address ec30.91b7.b000

             Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

             Aging Time 300

Interface Role Sts Cost Prio.Nbr Type

---------------- ---- --- --------- --------
--------------------------------

Fa0/5 Desg FWD 19 128.6 P2p

SW2#sho spanning-tree vlan 1

VLAN0001

  Spanning tree enabled protocol ieee

  Root ID Priority 32769

             Address ec30.91f9.7580

             This bridge is the root

             Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

  Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)

             Address ec30.91f9.7580

             Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

             Aging Time 300

Interface Role Sts Cost Prio.Nbr Type

---------------- ---- --- --------- --------
--------------------------------

Fa0/6 Desg FWD 19 128.7 P2p

Regards,

Amin

Blogs and organic groups at http://www.ccie.net
Received on Sun Jun 13 2010 - 17:29:10 ART