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How does MSTP maintain compatibility with RSTP?

Posted: Sat Jul 23, 2022 7:04 pm
by answerhappygod
How does MSTP maintain compatibility with RSTP?

A. The system ID of an RSTP BPDU is added with extra bytes to match the format of an MSTPBPDU.
B. MSTP sends all spanning-tree information in one BPDU.
C. MSTP supports five port states in the same way as RSTP.
D. RSTP implements a TTL that is compatible with the MSTP max age timer.
E. RSTP encodes region information from an MSTP BPDU into a single instance.