Cisco Catalyst 3030 Command Reference Manual page 507

Blade switch

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Chapter 2 Cisco Catalyst Blade Switch 3030 Cisco IOS Commands

This example shows how to set spanning-tree max-age to 30 seconds for VLAN 20:

Switch(config)# spanning-tree vlan 20 max-age 30

This example shows how to reset the max-age parameter to the default value for spanning-tree

instance 100 and 105 to 108:

Switch(config)# no spanning-tree vlan 100, 105-108 max-age

This example shows how to set the spanning-tree priority to 8192 for VLAN 20:

Switch(config)# spanning-tree vlan 20 priority 8192

This example shows how to configure the switch as the root switch for VLAN 10 with a network

diameter of 4:

Switch(config)# spanning-tree vlan 10 root primary diameter 4

This example shows how to configure the switch as the secondary root switch for VLAN 10 with a

network diameter of 4:

Switch(config)# spanning-tree vlan 10 root secondary diameter 4

You can verify your settings by entering the show spanning-tree vlan vlan-id privileged EXEC

Related Commands

show spanning-tree

spanning-tree cost

spanning-tree guard

spanning-tree port-priority

spanning-tree portfast (global

configuration)

spanning-tree portfast

(interface configuration)

spanning-tree uplinkfast

Displays spanning-tree information.

Sets the path cost for spanning-tree calculations.

Enables the root guard or the loop guard feature for all the VLANs

associated with the selected interface.

Sets an interface priority.

Globally enables the BPDU filtering or the BPDU guard feature on

Port Fast-enabled interfaces or enables the Port Fast feature on all

nontrunking interfaces.

Enables the Port Fast feature on an interface in all its associated

Enables the UplinkFast feature, which accelerates the choice of a

new root port.

Cisco Catalyst Blade Switch 3030 Command Reference

spanning-tree vlan