Which is a valid combination of configuration statements to set up a simple MPLS VPN on a PE?
A.
ip vrf yellow
rd 122:23
route-target both 122:23
ip vrf forwarding interface serial 0/0
interface s0/0
ip address 10.3.0.1 255.255.255.252
B.
ip vrf yellow
route-target both 122:23
interface s0/0
ip vrf forwarding yellow
ip address 10.3.0.1 255.255.255.252
C.
ip vrf yellow
route-target both 122:23
interface s0/0
rd 122:23
ip vrf forwarding yellow
ip address 10.3.0.1 255.255.255.252
D.
ip vrf yellow
rd 122:23
interface s0/0
route-target both 122:23
ip vrf forwarding yellow
ip address 10.3.0.1 255.255.255.252
Explanation:
Note: the correct option B lacks route distinguisher configuration (rd 122:23).
This is what IOS 15.1S returns when you try to configure RT before RD
%vrf aaaa does not have “rd” configured, please configure “rd” before configuring route-target
Right answer is B
0
0