Rapid STP (IEEE 802.1w) Concepts
As described in detail in Chapters 1 and 2, the IEEE defines STP in the 802.1D IEEE standard. The IEEE improved the 802.1D protocol with the definition of RSTP, as defined in standard 802.1w.
RSTP (802.1w) works just like STP (802.1D) in several ways:
It elects the root switch using the same parameters and tiebreakers.
It elects the root port on nonroot switches with the same rules.
It elects designated ports ...
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