This document discusses different spanning tree port configurations including port fast, uplinkfast, backbonefast, and RSTP. Port fast is enabled on individual interfaces to speed up topology changes while uplinkfast and backbonefast are configured globally to rapidly transition root ports and assist ports upon link failures for faster convergence. RSTP mode is set to PVST to implement the Rapid Spanning Tree Protocol.

1. Different Spanning-tree ports
WWW.TCPIPGURU.COM

3. Port fast:
 Enabling :  Disabling:
 Switch(config)#int  Switch(config-if-
range fa0/1 - 15 range)#spanning-tree
 Switch(config-if-
portfast disable
range)#spanning-tree
portfast

4. Uplink:
 Switch(config)#spanning-tree Uplinkfast

5. Backbonefast :
 Switch(config)#spanning-tree backbonefast

6. RSPT:
 Switch(config)#spanning-tree mode pvst