Home / IT Certifications / CCNP Routing and Switching / CCNP SWITCH / STP vs RSTP: Topology change

STP vs RSTP: Topology change

topology change event trigger:
STP: occurs when a port moves:
– from FWD to BLK
– from BLK to FWD
RSTP: occurs when a nonedge port moves from BLK to FWD

topology change detection time:
STP: after MaxAge and no BPDU received (~20sec)–> TCN sent towards Root Bridge.
RSTP: 3 Hellos missed in a row from a neighbor (~6sec)–> Neighbor seen as “down” and MAC addresses learned on that port are flushed.

Top Courses in IT & Software 300x250

Leave a Reply

Your email address will not be published. Required fields are marked *


Adsense black background: