RSVP Message Types for Cisco MPLS TE Tunnels
Question
You are creating new Cisco MPLS TE tunnels.
Which type of RSVP message does the headend router send to reserve bandwidth on the path to the tailend router?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.A.
https://packetpushers.net/rsvp-te-protocol-deep-dive/In MPLS Traffic Engineering (TE), Resource Reservation Protocol (RSVP) is used to reserve bandwidth on a specific path between two routers in a network. The headend router sends RSVP messages to reserve bandwidth on the path to the tailend router.
The RSVP messages are classified into three types: Path messages, Reservation messages, and Tear Down messages.
Path messages are sent by the headend router to discover and reserve a path with sufficient resources to the tailend router. These messages carry information such as the source and destination IP addresses, the amount of bandwidth required, and the constraints on the path.
Reservation messages are sent by each router along the path to reserve the required amount of bandwidth for the MPLS TE tunnel.
Tear Down messages are sent by the headend router to release the reserved resources when the MPLS TE tunnel is no longer required.
So, in this scenario, the headend router sends a Reservation message to reserve bandwidth on the path to the tailend router. Therefore, the correct answer is D. reservation.
