4A0-115: Nokia Ethernet Virtual Private Network ServicesDemo

By Nokia · Question Mode

QuestionQ8

EVPN for Layer-3 services

In the exhibit, an interface-less forwarding model is used for the Layer 3 EVPN service. Which statement about traffic forwarding from Host 1 to Host 2 is FALSE?

Question Image

  • A PE1 consults the FDB of RVPLS 1 and forwards the traffic to the local interface of VPRN 11.
  • B PE1 encapsulates the packet with two labels: an outer transport label and an inner service label.
  • C PE2 inspects the service label and determines that it is associated with RVPLS 2.
  • D PE2 consults the FDB of RVPLS 2 and forwards the traffic to Host 2.
Explanation

With EVPN interface-less forwarding over MPLS, PE1 encapsulates the IP packet with an EVPN service label and transport label(s). Once the MPLS tunnel terminates at PE2, the EVPN service label identifies the VPRN service for an IP route lookup; it does not identify RVPLS 2. Local R-VPLS forwarding may subsequently use its FDB to deliver traffic to the attached host.

Learn more

Community Discussion

No comments yet. Be the first to start the discussion!