Which type of RSTP link type is full duplex and assumes that the port is connected to a single device at the other end of the link?
- shared
- serial
- multilink
- point-to-point
Explanation: In Rapid Spanning Tree Protocol (RSTP), link types are used to categorize ports to determine how quickly they can transition to a forwarding state. The point-to-point link type is specifically used for ports operating in full-duplex mode. This link type assumes that the port is connected to only a single device (such as another switch) at the other end of the link.
Because there is only one other device on the segment, the switch can use a proposal-and-agreement handshake to allow the designated port to make a rapid transition to the forwarding state without waiting for traditional timer-based delays. While this link type is typically determined automatically based on the duplex setting of the interface, it can also be manually overwritten with a specific port configuration. In contrast, links that are not point-to-point are considered shared links (labeled as "Shr" in command outputs), which occur on half-duplex interfaces and do not support rapid transitions.
Related exam: Modules 1 – 7: Checkpoint Exam: Network Switching Answers (CCNP ENCOR v9)
