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The root bridge is the switch that 'anchors' the spanning tree: simplified, all switches evaluate their potential paths towards the root bridge and only the 'best' path is kept active, the other links are blocked. The root port of a switch is chosen by its path cost to the root bridge (lower is better), or the lowest priority value, if configured. If that ...


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1.So what can the root bridge do for the ethernet,what is its main function?i know it is important for the network,and all introductions of STP will teach us how to find it,but they don't why do we need to choose the root bridge from all switches? A spanning tree has to have a root. Here both terms are like in graphs. A root is a tree node which has no ...


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