3com WX2200 3CRWX220095A User Manual

C

HAPTER

 17: C

ONFIGURING

 

AND

 M

ANAGING

 S

PANNING

 T

REE

 P

ROTOCOL

To change the bridge priority of VLAN pink to 69, type the following 
command:

WX1200# set spantree priority 69 vlan pink
success: change accepted.

You can change the STP cost and priority of an individual port, on a 
global basis or an individual VLAN basis.

To change the cost of a port, use one of the following commands.

set spantree portcost port-list cost cost
set spantree portvlancost port-list cost cost {all | vlan 
vlan-id}

The set spantree portcost command changes the cost for ports in the 
default VLAN (VLAN 1) only. The set spantree portvlancost command 
changes the cost for ports in a specific other VLAN or in all VLANs. 

Specify a value from 1 through 65,535 for the cost. The default depends 
on the port speed and link type. (See Table 29 on page 353.)

The all option applies the change to all VLANs. Alternatively, specify an 
individual VLAN.

To change the cost on ports 3 and 4 in the default VLAN to 20, type the 
following command: 

WX1200# set spantree portcost 3,4 cost 20
success: change accepted.

To change the cost for the same ports in VLAN mauve, type the following 
command:

WX1200# set spantree portvlancost 3,4 cost 20 vlan mauve
success: change accepted.

To reset the STP port cost to the default value, use one of the following 
commands:

clear spantree portcost port-list
clear spantree portvlancost port-list {all | vlan vlan-id}