With the LDP-IGP Sync feature enabled, what happens immediately after the link is restored?

Click on the exhibit.

An LDP tunnel is established on R1-R2-R4-R6 because the link between routers R3 and R6 is down.

With the LDP-IGP Sync feature enabled, what happens immediately after the link is restored?
A . A new LDP session is established on R1-R3-R6 as soon as the FIB is updated.
B . The LDP session remains unchanged until the existing path R1-R2-R4-R6 goes down.
C . A new LDP session is established on R1-R3-R6 as soon as router R1 receives a new label for router R6.
D . The LDP session remains unchanged until router R3 stops advertising the maximum metric for the link to router R6.

View Answer

Answer: D