Configuring Spanning Tree
167
Designated Root 00-e0-34-88-fc-00
Designated Root Priority 32768
Designated Root Cost 0
Designated Root Port 1/0
Root Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec
Bridge ID MAC ADDR 00-e0-34-88-fc-00
Bridge ID Priority 32768
Bridge Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec
Port Vlan Port-State Cost Priority Fast-Start Group-Method
----- ---- ------------- ----- -------- ---------- -----
1/1 1 forwarding 19 32 disabled
1/2 1 not-connected 19 32 disabled
2/1 1 not-connected 100 32 disabled
2/2 1 not-connected 100 32 disabled
2/3 1 not-connected 100 32 disabled
2/4 1 not-connected 100 32 disabled
2/5 1 not-connected 100 32 disabled
--More--
By default, the show spantree command provides information about
VLAN 1. You can gather spanning tree information about other VLANs by
using the show spantree [vlan #] command.
The show spantree command will provide you with the following
information:
Designated Root The MAC address of the root bridge.
Designated Root Priority The priority of the root bridge. All bridges
have a default of 32768.
Designated Root Cost The cost of the shortest path to the root bridge.
Designated Root Port The port that is chosen as the lowest cost to the
root bridge.
Root Timers The timers received from the root bridge.
Bridge ID MAC Address This bridge's ID. This plus the Bridge Priority
make up the Bridge ID.
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