Networking - IP Routing - Discussion

Discussion :: IP Routing - IP Routing (Q.No.5)

5. 

What is split horizon?

[A]. Information about a route should not be sent back in the direction from which the original update came.
[B]. It splits the traffic when you have a large bus (horizon) physical network.
[C]. It holds the regular updates from broadcasting to a downed link.
[D]. It prevents regular update messages from reinstating a route that has gone down.

Answer: Option A

Explanation:

A split horizon will not advertise a route back to the same router it learned the route from.

Phioman said: (Jul 24, 2017)  
What happens if Information about a route is sent back in the direction from which the original update came?

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