This command displays spanning tree information per VLAN and also lists out the port roles and states along with port cost. The vlan-list parameter is a list of VLANs or VLAN-ranges separated by commas and with no embedded blank spaces. VLAN ranges are of the form “X-Y” where X and Y are valid VLAN identifiers and X< Y. The vlanid corresponds to an existing VLAN ID.
| Format | show spanning-tree vlan {vlanid | vlan-list} |
| Mode |
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The following example shows CLI display output for the command.
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Download EPUB(Extreme 220) (Routing) #show spanning-tree vlan 1
VLAN 1
Spanning-tree enabled protocol rpvst
RootID Priority 32769
Address 00:0C:29:D3:80:EA
Cost 0
Port This switch is the root
Hello Time 2 Sec Max Age 15 sec Forward Delay 15 sec
BridgeID Priority 32769 (priority 32768 sys-id-ext 1)
Address 00:0C:29:D3:80:EA
Hello Time 2 Sec Max Age 15 sec Forward Delay 15 sec
Aging Time 300
Interface Role Sts Cost Prio.Nbr
--------- ---------- ------------- --------- --------
1/0/1 Designated Forwarding 3000 128.1
1/0/2 Designated Forwarding 3000 128.2
1/0/3 Disabled Disabled 3000 128.3
1/0/4 Designated Forwarding 3000 128.4
1/0/5 Designated Forwarding 3000 128.5
1/0/6 Designated Forwarding 3000 128.6
1/0/7 Designated Forwarding 3000 128.7
1/0/8 Designated Forwarding 3000 128.8
0/1/1 Disabled Disabled 3000 128.1026
0/1/2 Disabled Disabled 3000 128.1027
0/1/3 Disabled Disabled 3000 128.1028
0/1/4 Disabled Disabled 3000 128.1029
0/1/5 Disabled Disabled 3000 128.1030
0/1/6 Disabled Disabled 3000 128.1031