Cisco WS-C2960S-24PD-L Software Guide - Page 173

Changing the Path Cost, Changing the Port Priority, Step 1

Page 173 highlights

Chapter 6 Configuring the System Configuring STP Changing the Path Cost Beginning in privileged EXEC mode, follow these steps to change the path cost for STP calculations. The STP command applies to the stp-list. Step 1 Step 2 Step 3 Command configure terminal interface interface spanning-tree [vlan stp-list] cost cost Step 4 end Step 5 show running-config Purpose Enter global configuration mode. Enter interface configuration mode, and enter the port to be configured. Configure the path cost for the specified spanning-tree instance. Enter a number from 1 to 65535. Return to privileged EXEC mode. Verify your entry. Changing the Port Priority Beginning in privileged EXEC mode, follow these steps to change the port priority, which is used when two switches tie for position as the root switch. The stp-list is the list of VLANs to which the STP command applies. Step 1 Step 2 Step 3 Command configure terminal interface interface spanning-tree [vlan stp-list] port-priority port-priority Step 4 end Step 5 show running-config Purpose Enter global configuration mode. Enter interface configuration mode, and enter the port to be configured. Configure the port priority for a specified instance of STP. Enter a number from 0 to 255. The lower the number, the higher the priority. Return to privileged EXEC mode. Verify your entry. 78-6511-08 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-45

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6-45
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
78-6511-08
Chapter 6
Configuring the System
Configuring STP
Changing the Path Cost
Beginning in privileged EXEC mode, follow these steps to change the path cost for STP calculations.
The STP command applies to the
stp-list
.
Changing the Port Priority
Beginning in privileged EXEC mode, follow these steps to change the port priority, which is used when
two switches tie for position as the root switch. The
stp-list
is the list of VLANs to which the STP
command applies.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
interface
interface
Enter interface configuration mode, and enter the port to be configured.
Step 3
spanning-tree
[
vlan
stp-list
]
cost
cost
Configure the path cost for the specified spanning-tree instance.
Enter a number from 1 to 65535.
Step 4
end
Return to privileged EXEC mode.
Step 5
show running-config
Verify your entry.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
interface
interface
Enter interface configuration mode, and enter the port to be configured.
Step 3
spanning-tree
[
vlan
stp-list
]
port-priority
port-priority
Configure the port priority for a specified instance of STP.
Enter a number from 0 to 255. The lower the number, the higher the priority.
Step 4
end
Return to privileged EXEC mode.
Step 5
show running-config
Verify your entry.