The RIP metric can go up to a maximum of 15 hops. If a network has more than 15 hops, RIP is not a suitable protocol for it.
Figure 3-17 shows a network setup that produces a RIP hop-count limit problem.
Figure 3-17. Network Setup That Can Produce a RIP Hop-Count Limit
R2 is receiving an update for a RIP route, which is several (more than 15) hops away. R2 doesn't install that route in the routing table, as demonstrated in the output in Example 3-56.
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