A.Resources consumed at the sender and receiver PEs can be reduced by using BGP ORF.

B.BGP ORF allows a receiving PE to filter out unnecessary inbound routes.

C.A PE indicates its ORF capabilities to its neighbor PE in a BGP Open message.

D.BGP ORF is most effective when a large number of routes is being exchanged between two peers, and most routes are filtered out on arrival.

A.Targeted LDP for exchanging VPRN labels with other PE devices

B.MPLS for exchanging labels with the CE devices

C.A routing protocol for exchanging customer routes with the CE

D.A label signaling protocol for defining transport tunnels between PE and CE devices

E.MP-BGP for exchanging customer routes with other PEs

F.MPLS for exchanging labels with other provider core devices

A.PE routers distribute VPN-IPv4 routes to their local ASBR.

B.Model B does not require the configuration of VPRN instances on ASBRs.

C.One single ASBR is required in each AS to hold the routes for all VPRNs.

D.The ASBRs peer with each other to transport VPN-IPv4 routes between autonomous systems.

A.PE2

B.CE2

C.PE1

D.CE1

A.It is used to make IPv4 addresses unique

B.It defines which routes are exported from the vrf

C.It defines which routes are imported into the vrf

D.It defines the VPN membership

E.It is used as the VPN label