Method for a root path calculation in a shortest path bridge

摘要

A method for root path calculation in a shortest path bridge, including: in the case that there are a plurality of equivalent paths whose total path cost to a root bridge is equal, determining a root path corresponding to the root bridge based on the minimum/maximum value of bridge ID in the plurality of equivalent paths. The method can generate symmetric paths for different root bridges under a multiple spanning tree circumstance of shortest path bridge.