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| Sun Ethernet Fabric Operating System ### PVRST+ Administration Guide

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## Configuring RSTP in PVRST+

The RSTP used in the PVRST+ module is based on the IEEE 802.1w rapid reconfiguration. The existing STP takes significant time to reconfigure and to restore the service on link failure or restoration. RSTP avoids reconvergence delay by calculating an alternate root port and immediately switching over to the alternate port if the root port becomes unavailable.

This section contains procedures for configuring RSTP in the PVRST+ software. Throughout this chapter the instructions use, Topology Example.

- Enable IPv6 Support and Assign IPv6 Addresses

- Configure the Spanning-Tree Path Cost

- Configure the Spanning Tree Link Type

- Configure the Spanning-Tree `portfast` Setting

- Configure Spanning Tree Timers

- Display the Spanning Tree Status

- Configure the Transmit Hold Count

- Configure Encapsulation

- Configure the BPDU Guard

- Configure the Root Guard

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