The network-engineering team of a service provider is integrating several recently acquired networks into a more scalable common Unified MPLS architecture.
The new network architecture will support end-to-end VPNv4 and VPNv6 services with these requirements:
✑ The IGP of the core layer is IS-IS in Area 0.
✑ The IGP of the aggregation layers is OSPF in Area 0.
✑ The LDP protocol is used to distribute label bindings within each IGP domain.
Which task must the network engineer perform when implementing this new architecture?

A. Configure a BGP session between the ABR routers of each IGP domain to exchange VPNv4 or VPNv6 prefixes.

B. Configure mutual redistribution of each IGP domain's loopback prefix to provide end-to-end LDP LSP.

C. Configure the ABR in each IGP domain to preserve next-hop information on all VPNv4 and VPNv6 prefixes advertised by the PE.

D. Configure BGP-LU between ABR routers of each IGP domain to carry MPLS label information in NLRI.








 

Suggested Answer: B



This question is in 350-501 SPCOR exam 
For getting CCNP Service Provider Certificate


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