RSTP (Rapid Spanning Tree Protocol)
RSTP is a faster convergence version of STP that reduces downtime after topology changes.
Updated: 2026-03-05
Definition
RSTP (802.1w) improves STP by speeding up convergence using new port roles and rapid transition mechanisms.
It reduces timeouts after link failures, improving availability in switched networks.
Key points
- Faster convergence than classic STP (802.1D)
- Uses different port roles and rapid transitions
- Often implemented as Rapid-PVST+ on Cisco
Common mistakes
- Assuming default settings always pick the best root bridge.
- Not enabling edge/portfast on access ports (slower bring-up).
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