3Com 3CRWX120695A, Configuration Manual

Page: 354 / 728

354 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.
Changing STP Port
Parameters
You can change the STP cost and priority of an individual port, on a
global basis or an individual VLAN basis.
Changing the STP Port Cost
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.
Resetting the STP Port Cost to the Default Value
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 }