An MSTP switch considers an RSTP switch to be an MSTP region that consists of only one switch and parses RST BPDUs into MST BPDUs, in which IRPC is 0.

Question

Quizplus · Accepted Answer

An MSTP switch interprets an RSTP switch as a single-switch MSTP region and converts RST BPDUs to MST BPDUs with an Internal Root Path Cost (IRPC) of 0, as there are no additional switches in the region.

An MSTP Switch Considers an RSTP Switch to Be an MSTP