r/ccie • u/Major11223344 • 1d ago
MPLS FEC
Hi
I`m review now MPLS FEC topic.
R1----R2----R3----R4----R5----10/8,20/8
FEC is a group of packet one or more packet are treated the exact same way. Does that means if R1 received :
10.1.1.1,10.2.2.2,20.1.1.1,20.2.2.2
and these 4 packets are treated on R1 the exact same way
and on R2 are treated a different way, R3 another way,R4 another way. Does that mean each hop must treat these 4 packets as the exact same way like R1 in order to be on the same MPLS FEC ?
OR
It`s normal for each hop to treat them on a different way and still on the same MPLS FEC?
What i mean does the MPLS FEC is controlled on the ingress PE only ?
OR
MPLS FEC could be controlled on each hop and the FEC is locally significant?