H12-811_V1.0 · Question #824
As specified by the RSTP protocol, when a root port fails, which type of port will function as a new root port and enter the forwarding state without any delay?
The correct answer is A. Alternate Port. In RSTP (Rapid Spanning Tree Protocol), the Alternate Port is the backup path to the root bridge. If the current root port fails, the Alternate Port immediately transitions to the forwarding state, providing a new path to the root bridge with minimal delay. This rapid…
Question
As specified by the RSTP protocol, when a root port fails, which type of port will function as a new root port and enter the forwarding state without any delay?
Options
- AAlternate Port
- BForwarding Port
- CBackup Port
- DEdge Port
How the community answered
(30 responses)- A73% (22)
- B17% (5)
- C7% (2)
- D3% (1)
Explanation
In RSTP (Rapid Spanning Tree Protocol), the Alternate Port is the backup path to the root bridge. If the current root port fails, the Alternate Port immediately transitions to the forwarding state, providing a new path to the root bridge with minimal delay. This rapid transition is one of the key improvements of RSTP over the older STP protocol. Backup ports, on the other hand, provide redundancy on the same switch, and edge ports are used to connect directly to end devices.
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