LDP Configuration Outcome
Question
In your network, you have two LDP routers connected across four physical interfaces. You also have enabled LDP to separate on all four of those interfaces.
What is the resulting outcome of your configuration between those two devices?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.B
In this scenario, two LDP routers are connected through four physical interfaces, and LDP has been enabled separately on all four interfaces. Let's understand the outcomes of this configuration:
LDP is a protocol used for establishing label-switched paths (LSPs) in MPLS networks. When LDP is enabled on an interface, it sends an LDP hello message to its neighbors on that interface. If a neighbor router responds with a hello message and the LDP parameters match, the routers establish an LDP session and exchange label mapping information.
In this case, as LDP has been enabled separately on all four interfaces, each interface will send a hello message to its respective neighbor on that interface. If the neighbors respond with hello messages, then four LDP sessions will be established between the two routers. Therefore, the correct answer is D, "Four sessions are built across four neighbor relationships."
Each of the four sessions will have a unique LDP identifier and will exchange label mapping information for the respective interface. This allows for label-switched paths to be established between the two routers on each interface.
In summary, enabling LDP separately on each interface results in four LDP sessions being established between the two routers, one for each interface.
