A.1

B.None

C.2

D.3

A.When the customer carrier uses the same autonomous system number in various sites, use the "loop-detect off" CLI command to disable the loop detection functionality on CSC-CE and PE routers.

B.Configure an iBGP session between PE1 and PE2 and use the "family vpn-ipv4" CLI command to directly exchange end-customer routes learned from CE1 and CE2.

C.In the CSC VPRN, configure an eBGP session between CSC-PE and CSC-CE and use the "advertise-label vpn-ipv4" CLI command to enable the advertisement of VPN-IPv4 routes.

D.On the CSC-PE routers, use the "carrier-carrier-vpn" CLI command to configure the VPRN service as CSC.

A.The vrf-target command is mandatory

B.The VPRN ID must be the same value as is used in the route-distinguisher command

C.There is nothing wrong with this configuration

D.The router-id command should not be used in this context

E.The VPRN ID must be the same value as is used in the vrf-target command

A.PE2 pushes two labels on the IP packet and label-switches the packet to ASBR2.

B.ASBR1 pushes two labels on the IP packet and label-switches the packet to PEL.

C.ASBR2 pops one label from the IP packet and label-switches it to ASBR1.

D.CE2 forwards an unlabeled IP packet to PE2 via the VPRN interface.

A.64492 64493 64491

B.64491 {64492 64493}

C.64491

D.{64492 64493)64491