4A0-105: Nokia Virtual Private LAN ServicesDemo

By Nokia · Question Mode

QuestionQ189

VPLS Features

Which of the following statements regarding the VC-ID is false?

  • A The vc-id is signaled in the control plane.
  • B The vc-id is part of the data plane encapsulation.
  • C There is a vc-id to vc-label mapping.
  • D The vc-id has point to point significance.
Explanation

A VC-ID identifies a pseudowire during LDP control-plane signaling and is associated with a VC/PW label. In the data plane, the MPLS VC/PW label demultiplexes the pseudowire traffic; the VC-ID is not carried in the packet encapsulation. RFC 8077 specifies LDP procedures that bind a pseudowire demultiplexer value to a pseudowire and signal that binding to the remote endpoint.

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