Specifications

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
How to Configure EtherSwitch HWICs
36
• Configuring the Forward-Delay Time for a VLAN, page 42
• Configuring the Maximum Aging Time for a VLAN, page 43
• Configuring the Root Bridge, page 44
Enabling Spanning Tree
You can enable spanning tree on a per-VLAN basis. The switch maintains a separate instance of
spanning tree for each VLAN (except on VLANs on which you disable spanning tree).
SUMMARY STEPS
1. enable
2. configure terminal
3. spanning-tree vlan vlan-ID
4. end
5. show spanning-tree vlan vlan-id
DETAILED STEPS
Example
Command or Action Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
spanning-tree vlan vlan-ID
Example:
Router(config)# spanning-tree vlan 200
Enables spanning tree on a per-VLAN basis
Step 4
end
Example:
Router(config)# end
Returns to privileged EXEC mode.
Step 5
show spanning-tree vlan vlan-id
Example:
Router# show spanning-tree vlan 200
Verifies spanning tree configuration