An engineer is troubleshooting a connectivity issue across the MPLS network and is verifying the forwarding behavior of packets. Which table does the engineer look at to verify the forwarding behavior of an IP packet as it enters the MPLS network at the ingress LSR?
A) LFIB
B) LIB
C) RIB
D) FIB

Question

Quizplus · Accepted Answer

LFIB (Label Forwarding Information Base) is the table that the engineer would look at to verify the forwarding behavior of an IP packet as it enters the MPLS network at the ingress LSR. LFIB contains the mapping between IP addresses and labels, and it is used to determine the next hop for a packet based on its destination IP address.

An Engineer Is Troubleshooting a Connectivity Issue Across the MPLS