4A0-105: Nokia Virtual Private LAN ServicesDemo

By Nokia · Question Mode

QuestionQ94

VPLS Features

A customer is being provided two VPLS services in two separate Metro networks. VPLS 500 is configured in Metro 1, and VPLS 900 is configured in Metro 2. The customer requests connectivity between the Metro networks using the existing VPLS services. Which configuration on the PE routers that link the metro networks enables VPLS 500 and VPLS 900 to operate as a single VPLS service? Assume default values for all VPLS parameters, and that SDP 999 exists between the metro networks.

Question Image

  • A Option A
  • B Option B
  • C Option C
  • D Option D
Explanation

Hierarchical VPLS interconnects VPLS nodes in separate networks through point-to-point spoke SDPs. Both endpoints of the interconnecting pseudowire must use the same VC-ID; using SDP 999 with VC-ID 500 at both ends establishes the spoke pseudowire between the locally distinct VPLS service instances. The local service IDs may differ because the common VC-ID identifies the interconnection circuit.

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