4A0-105: Nokia Virtual Private LAN ServicesDemo

By Nokia · Question Mode

QuestionQ13

VPLS redundancy techniques

What effect does implementing fast reroute in facilities mode on the LSP have on 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

FRR facility mode uses a shared MPLS bypass tunnel, which adds one MPLS label during protection. Because an MPLS label consumes 4 bytes, the usable SDP path MTU decreases by 4 bytes.

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