Rapid Spanning Tree Capsule

RSTP defined new 4 port roles:- 1. Root Port (Old One) 2. Designated Port (Old One) 3. Alternate Port (New One) 4. Backup Port (New One) Alternate Port:- The alternate port is the port blocked by superior BPDU from a different bridge. Backup Port:- The backup port is the port blocked by the BPDU sent from the same switch.
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