Chapter 15
Configuring STP and IEEE 802.1s MST
To configure the STP bridge priority of a VLAN when the extended system ID is disabled, perform this
task:
Command
Step 1
Router(config)# spanning-tree vlan vlan_ID
priority bridge_priority
Router(config)# no spanning-tree vlan vlan_ID
priority
Step 2
Router(config)# end
Step 3
Router# show spanning-tree vlan vlan_ID bridge
[detail]
To configure the STP bridge priority of a VLAN when the extended system ID is enabled, perform this
task:
Command
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}
Router(config)# no spanning-tree vlan vlan_ID
priority
Step 2
Router(config)# end
Step 3
Router# show spanning-tree vlan vlan_ID bridge
[detail]
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
Vlan
---------------- -------------------- ---- ---- -----
VLAN200
Router#
78-14064-04
Purpose
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
on page
Reverts to the default bridge priority value.
Exits configuration mode.
Verifies the configuration.
Purpose
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
on page
Reverts to the default bridge priority value.
Exits configuration mode.
Verifies the configuration.
Hello Max
Bridge ID
Time
33792 0050.3e8d.64c8
Cisco 7600 Series Router Cisco IOS Software Configuration Guide—12.1E
9-2).
9-2).
Fwd
Age Delay
Protocol
--------
2
20
15
ieee
Configuring STP
Table 9-1
Table 9-1
15-31