Cisco Systems EA6500 Manual De Usuario

VLAN0006         Back BLK 1000      160.196  P2p 

VLAN0007         Back BLK 1000      160.196  P2p 

VLAN0008         Back BLK 1000      160.196  P2p 

VLAN0009         Back BLK 1000      160.196  P2p 

VLAN0010         Back BLK 1000      160.196  P2p 

Router#

This example shows how to configure the port priority at an individual port VLAN cost for VLAN 200:

Router# configure terminal 

Enter configuration commands, one per line.  End with CNTL/Z.

Router(config)# interface fastEthernet 4/4

Router(config-if)# spanning-tree vlan 200 cost 2000 

Router(config-if)# ^Z 

Router#

This example shows how to verify the configuration:

Router# show spanning-tree vlan 200 interface fastEthernet 4/4

Interface        Role Sts Cost      Prio.Nbr Status

---------------- ---- --- --------- -------- --------------------------------

Fa4/4            Desg FWD 2000       64.196  P2p 

In the following output other VLANs (VLAN 1 for example) have not been affected by this 
configuration.

Router# show spanning-tree vlan 1 interface fastEthernet 4/4 

Interface        Role Sts Cost      Prio.Nbr Status

---------------- ---- --- --------- -------- --------------------------------

Fa4/4            Back BLK 1000      160.196  P2p 

Router#

The show spanning-tree command only displays information for ports that are in link-up operative state 
and are appropriately configured for DTP. If these conditions are not met, you can enter a show 
running-config command to confirm the configuration.

Be careful when using this command. For most situations, we recommend that you enter the 
spanning-tree vlan vlan_ID root primary and the spanning-tree vlan vlan_ID root secondary 
commands to modify the bridge priority.