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For questions about Spanning Tree Protocol (STP), a common protocol to prevent bridge loops at OSI layer-2.

13 votes

How is the root bridge elected in STP?

You're asking about STP theory: https://en.wikipedia.org/wiki/Spanning_Tree_Protocol But the basic idea is that each switch has a Bridge ID which is a combination of its priority and its MAC address …
A J Rossington's user avatar