300-410 ENARSI: Implementing Cisco Enterprise Advanced Routing and ServicesDemo

By Cisco · Question Mode

QuestionQ452

Layer 3 Technologies

A newly installed router begins to establish an LDP session with another MPLS router that is not directly connected. Which LDP message type does the target router send back to the initiating router by using UDP?

  • A notification message
  • B session message
  • C advertisement message
  • D extended discovery message
Explanation

LDP peers that are not directly connected use targeted discovery. This discovery process exchanges targeted Hello packets as Extended Discovery messages over UDP, allowing the target router to respond to the initiating router before the LDP session is established.

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