9-7 - Routing Requirements for IPv6 Connectivity over MPLS VPNs

Question 1

T/F: 6PE and 6VPE rely heavily on MP-BGP extensions in the IPv4 network configuration on the PE router to exchange IPv6 reachability information (in addition to an MPLS label) for each IPv6 address prefix.

Answer 1

True

Question 2

T/F: The maximum of eight OSPFv3 processes are supported.

Answer 2

False

Question 3

T/F: To support IPv6, routing protocols require additional extensions for operating in the VPN environment. Extensions to OSPFv3 are necessary for OSPFv3 to operate at the PE-CE links.

Answer 3

True

Question 4

T/F: The 6PE multipath feature uses MP-IBGP to distribute IPv6 routes over the MPLS IPv4 core network and to attach an MPLS label to each route.

Answer 4

True

Question 5

T/F: When you enable MP-IBGP multipath on the 6PE router, all labeled paths install in the forwarding table with MPLS information (label stack) when MPLS information is available. This functionality enables 6PE to perform load balancing.

Answer 5

True

Question 6

T/F: OSPFv3 also supports multiple VRFs in a single routing process that allows scaling to tens and hundreds of VRFs without consuming too much route processor resources.

Answer 6

True

Question 7

What is true about IPv6 MPLS VPN routing requirements?

A. Multiple OSPFv3 processes cannot be configured on a single router.
B. The OSPFv3 6VPE feature removes the PE-CE routing support.
C. 6PE and 6VPE use the existing MPLS IPv4 core infrastructure for IPv6 transport.
D. Internal and external BGP multipath for IPv6 disables load balancing between several paths.

Answer 7

C