BackboneFast must be enabled on all switches in the Spanning Tree
instance. BackboneFast will interoperate with third-party switches. However it
is a Cisco proprietary feature and it is not supported on Token Ring VLANs.
Configure BackboneFast
To enable or disable BackboneFast, use
this command:
Switch(config)#[no] spanning-tree
backbonefast
Verify BackboneFast
To verify
BackboneFast configuration, use this command:
Switch#show spanning-tree
backbonefast