Spanning Tree Protocol (Stp) - Fujitsu XG1200 User Manual

XG1200 User's Guide

4.5 Spanning Tree Protocol (STP)

The Spanning Tree Protocol (STP) is a function that prevents loops from occurring on a network. It is also possible to provide
network redundancy by intentionally creating a loop.
STP exclusively uses only one active path between network devices, and shuts out other paths, to avoid network loops. An
active path is selected by comparing path costs defined on each path. After the comparison, the lowest cost path will be
selected. If the selected path becomes disabled, STP will activate the lowest cost path among the paths remaining.
The XG1200 supports IEEE802.1w RSTP (Rapid Spanning Tree Protocol). The RSTP is upward compatible with IEEE9802.1D
STP (Spanning Tree Protocol) and serves as an STP if the destination device supports the STP only.
34/258
All Rights Reserved, Copyright (C) PFU LIMITED 2005