What is the main benefit of RSTP over STP?
- RSTP has less port roles than STP.
- RSTP achieves faster convergence than STP.
- RSTP has more port states than STP.
- BPDUs are only initiated by the root bridge in RSTP, whereas in STP all switches initiate BPDUs.
Explanation: RSTP can achieve much faster convergence than STP in a properly configured network, sometimes in as little as a few hundred milliseconds. All switches in an RSTP network send BPDUs as a "keepalive" mechanism. RSTP has fewer port states but more port roles making it leaner and quicker to converge and reconverge after issues. RSTP minimizes downtime and ensures efficient data transmission.
Related exam: 17.3.2 Module Quiz Answers - CCNA 200-301 Exam v1.1 Supplemental Module
