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Mohamed G. Gouda					CS 356
Spring 2019						Exercise 8
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Consider an AS whose routers use RIP to route packets within the
AS. Let A be a router in this AS and assume that the RIP 
routing table of A has the following entry:

	(dst subnet = x,
	# hops to reach dst subnet = 5,
	best ngh to reach dst subnet = B)

If A receives the routing table of ngh B which has the entry
	(x, 5, C)
then A uses this received entry to update the entry (x, 5, B) in 
its own routing table.

Describe the updated entry in A's routing table

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Solution:
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The updated entry is (x, 6, B)