4A0-105: Nokia Virtual Private LAN ServicesDemo

By Nokia · Question Mode

QuestionQ67

VPLS redundancy techniques

How does implementing fast reroute in one-to-one mode on the LSP affect the SDP path MTU?

  • A There will be no impact on the path-mtu.
  • B The path-mtu will decrease by4 bytes.
  • C The path-mtu will increase by 4 bytes.
  • D The path-mtu will decrease by 8 bytes.
  • E The path-mtu will increase by 8 bytes.
Explanation

One-to-one RSVP-TE fast reroute uses a dedicated detour LSP and replaces the protected LSP forwarding label at the point of local repair; it does not add another MPLS label to the packet’s forwarding stack. Therefore, it introduces no additional encapsulation overhead and leaves the SDP path MTU unchanged.

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