Cisco Catalyst 2960-XR Configuration Guide

SUMMARY STEPS
1.
configure terminal
2.
interface interface-id
3.
spanning-tree cost cost
4.
spanning-tree vlan vlan-id cost cost
5.
end
DETAILED STEPS
PurposeCommand or Action
Enters the global configuration mode.configure terminal
Example:
Switch# configure terminal
Step 1
Specifies an interface to configure, and enters interface configuration mode.
Valid interfaces include physical ports and port-channel logical interfaces
(port-channel port-channel-number).
interface interface-id
Example:
Switch(config)# interface
gigabitethernet1/0/1
Step 2
Configures the cost for an interface.
spanning-tree cost cost
Step 3
Example:
Switch(config-if)# spanning-tree
cost 250
If a loop occurs, spanning tree uses the path cost when selecting an interface
to place into the forwarding state. A lower path cost represents higher-speed
transmission.
For cost, the range is 1 to 200000000; the default value is derived from the
media speed of the interface.
Configures the cost for a VLAN.
spanning-tree vlan vlan-id cost cost
Step 4
Example:
Switch(config-if)# spanning-tree
vlan 10,12-15,20 cost 300
If a loop occurs, spanning tree uses the path cost when selecting an interface
to place into the forwarding state. A lower path cost represents higher-speed
transmission.
•
For vlan-id, you can specify a single VLAN identified by VLAN ID
number, a range of VLANs separated by a hyphen, or a series of
VLANs separated by a comma. The range is 1 to 4094.
•
For cost, the range is 1 to 200000000; the default value is derived from
the media speed of the interface.
Returns to privileged EXEC mode.end
Example:
Switch(config-if)# end
Step 5
Catalyst 2960-XR Switch Layer 2 Configuration Guide, Cisco IOS Release 15.0(2)EX1
OL-29424-01 33
Configuring Spanning Tree Protocol
Configuring Path Cost

Cisco Catalyst 2960-XR Specifications

General

Stacking Bandwidth	80 Gbps
Layer Support	Layer 2 and Layer 3
Jumbo Frame Support	9198 bytes
RAM	512 MB
Input Voltage	100-240V AC
Model	Catalyst 2960-XR
Uplink Interfaces	4 x 1G SFP or 2 x 10G SFP+
Downlink Interfaces	24 or 48 x Gigabit Ethernet ports
Power Supply	Internal
MAC Address Table Size	16, 000 entries
PoE	Available on PoE models
Weight	4.5 kg
Features	energy efficiency
Stacking	Up to 8 switches
Operating Temperature	0 to 45°C