Cisco WS-C4003 Software Guide - Page 145
Configuring BackboneFast
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Chapter 8 Configuring Spanning Tree PortFast, UplinkFast, and BackboneFast, and Loop Guard Figure 8-5 Adding a Switch in a Shared-Medium Topology Switch A (Root) Configuring BackboneFast Switch C Blocked port Switch B (Designated Bridge) Added switch 11245 Configuring BackboneFast These sections describe how to configure the BackboneFast feature: • Enabling BackboneFast, page 8-13 • Displaying BackboneFast Statistics, page 8-14 • Disabling BackboneFast, page 8-14 Enabling BackboneFast Note You must enable BackboneFast on all switches in the network. BackboneFast is not supported on Token Ring VLANs. This feature is supported for use with third-party switches. To enable BackboneFast on the switch, perform this task in privileged mode: Step 1 Step 2 Task Enable BackboneFast on the switch. Verify that BackboneFast is enabled. Command set spantree backbonefast enable show spantree backbonefast This example shows how to enable BackboneFast on the switch and how to verify the configuration: Console> (enable) set spantree backbonefast enable Backbonefast enabled for all VLANs Console> (enable) show spantree backbonefast Backbonefast is enabled. Console> (enable) 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 8-13
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