Enabling Backbonefast - Cisco 6500 Series Software Configuration Manual

Chapter 16 Configuring Optional STP Features
This example shows how to verify that UplinkFast is enabled:
Router# show spanning-tree uplinkfast
UplinkFast is enabled
Router#

Enabling BackboneFast

BackboneFast operates correctly only when enabled on all network devices in the network.
Note
BackboneFast is not supported on Token Ring VLANs. This feature is supported for use with third-party
network devices.
To enable BackboneFast, perform this task:
Command
Step 1
Router(config)# spanning-tree backbonefast
Router(config)# no spanning-tree backbonefast
Step 2
Router(config)# end
Step 3
Router# show spanning-tree vlan vlan_ID
This example shows how to enable BackboneFast:
Router# configure terminal
Router(config)# spanning-tree backbonefast
Router(config)# end
Router#
This example shows how to verify that BackboneFast is enabled:
Router# show spanning-tree backbonefast
BackboneFast is enabled
BackboneFast statistics
-----------------------
Number of transition via backboneFast (all VLANs) : 0
Number of inferior BPDUs received (all VLANs)
Number of RLQ request PDUs received (all VLANs)
Number of RLQ response PDUs received (all VLANs)
Number of RLQ request PDUs sent (all VLANs)
Number of RLQ response PDUs sent (all VLANs)
Router#
78-14099-04
Purpose
Enables BackboneFast.
Disables BackboneFast.
Exits configuration mode.
Verifies that BackboneFast is enabled.
Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
Enabling BackboneFast
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