Cisco 7609 User Manual

15-31
Cisco 7600 Series Router Cisco IOS Software Configuration Guide—12.1E
78-14064-04
Chapter 15 Configuring STP and IEEE 802.1s MST
Configuring STP
To configure the STP bridge priority of a VLAN when the extended system ID is disabled, perform this
task:
To configure the STP bridge priority of a VLAN when the extended system ID is enabled, perform this
task:
This example shows how to configure the bridge priority of VLAN 200 to 33792 when the extended
system ID is disabled:
Router# configure terminal
Router(config)# spanning-tree vlan 200 priority 33792
Router(config)# end
Router#
This example shows how to verify the configuration:
Router# show spanning-tree vlan 200 bridge
Hello Max Fwd
Vlan Bridge ID Time Age Delay Protocol
---------------- -------------------- ---- ---- ----- --------
VLAN200 33792 0050.3e8d.64c8 2 20 15 ieee
Router#
Command Purpose
Step 1
Router(config)# spanning-tree vlan vlan_ID
priority bridge_priority
Configures the bridge priority of a VLAN when the
extended system ID is disabled. The bridge_priority
value can be from 1 to 65535. The vlan_ID value can be
1 through 4094, except reserved VLANs (see Table 9-1
on page 9-2).
Router(config)# no spanning-tree vlan vlan_ID
priority
Reverts to the default bridge priority value.
Step 2
Router(config)# end
Exits configuration mode.
Step 3
Router# show spanning-tree vlan vlan_ID bridge
[detail]
Verifies the configuration.
Command Purpose
Step 1
Router(config)# [no] spanning-tree vlan vlan_ID
priority {0 | 4096 | 8192 | 12288 | 16384 | 20480
| 24576 | 28672 | 32768 | 36864 | 40960 | 45056 |
49152 | 53248 | 57344 | 61440}
Configures the bridge priority of a VLAN when the
extended system ID is enabled. The vlan_ID value can be
1 through 4094, except reserved VLANs (see Table 9-1
on page 9-2).
Router(config)# no spanning-tree vlan vlan_ID
priority
Reverts to the default bridge priority value.
Step 2
Router(config)# end
Exits configuration mode.
Step 3
Router# show spanning-tree vlan vlan_ID bridge
[detail]
Verifies the configuration.

Cisco 7609 Specifications

General

Chassis Slots	9
Switch Fabric Capacity	720 Gbps
Power Supply Options	AC or DC
Product Type	Router
Form Factor	Rack-mountable
Supported Line Cards	Various Cisco 7600 Series line cards
Operating System	Cisco IOS
Management	CLI, SNMP
Forwarding Performance	400 Mpps
Maximum Power Consumption	4000 Watts
Redundancy	Yes
Interfaces/Ports	Various, depending on line cards installed