Configuring and managing spanning tree protocol 457

Nortel WLAN—Security Switch 2300 Series Configuration Guide

Displaying STP bridge and port information

To display STP bridge and port information, use the following command:

show spantree [port port-list | vlan vlan-id] [active]

By default, STP information for all ports and all VLANs is displayed. To display STP information for specific ports or a
specific VLAN only, enter a port list or a VLAN name or number. For each VLAN, only the ports contained in the
VLAN are listed in the command output.
To list only the ports that are in the active (forwarding) state, enter the active option.
To display STP information for VLAN mauve, type the following command:

WSS# show spantree vlan mauve

VLAN 3
Spanning tree mode PVST+
Spanning tree type IEEE
Spanning tree enabled
Designated Root 00-02-4a-70-49-f7
Designated Root Priority 32768
Designated Root Path Cost 19
Designated Root Port 1
Root Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec
Bridge ID MAC ADDR 00-0b-0e-02-76-f7
Bridge ID Priority 32768
Bridge Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec
Port Vlan STP-State Cost Prio Portfast
------------------------------------------------------------------------------
1 1 Forwarding 19 128 Disabled
2 1 Blocking 19 128 Disabled
3 1 Blocking 19 128 Disabled
10 1 Forwarding 19 128 Disabled
15 1 Blocking 19 128 Disabled
16 1 Blocking 19 128 Disabled
In this example, VLAN mauve contains ports 1 through 3, 10, 15 and 16. Ports 1 and 10 are forwarding traffic. The other
ports are blocking traffic.
(For more information about the fields in the output, see the Nortel WLAN Security Switch 2300 Series Command Line
Reference.)