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From the last post, I wrote Routing Protocol in general. Now, I want to make you more having fundamental knowledge about Routing Information Protocol (RIP). What is RIP? RIP is dynamic routing protocol based on distance vector algorithm, for delivering routing information between two or more routers. When you utilize this protocol?
1. when you want to make a small scale network
2. when your network is NOT supposed to have scalability
3. when you route in one autonomous system

RIP is still utilized until now. This protocol is the oldest among others. The types of RIP are RIP version 1 (RIPv1 or you just call it RIP), RIP version 2 (RIPv2), and RIP next generation (RIPng).

Characteristics of RIP
This protocol uses distance vector algorithm, when a node only knows the nearest neighbor. It doesn’t know the map itself. Then, the maximum hops are 15 hops. When you build 16 or more hops, your network are unreachable. On the other hand, router broadcasts update every 30 seconds to stabilize or converge the table routing. UDP port is 520. Administrative distance (AD)=120, utilize the Bellman-Ford algorithm.

There are two main types of RIP. They are RIPv1 and RIPv2.
The characteristics of RIPv1 are classfull, means no delivering subnet information when update, not supported VLSM, the update delivers all table routing details, and supporting automotic summarize. While RIPv2 characteristics are classless, means delivering subnet mask when update and supported VLSM.

Andvantages:
1. easy to be configured
2. low memory CPU usage

Disadvantages:
1. high bandwidth usage
2. hop counts 15 is very limited
3. long time to converge the routing table.

Source:
http://cisco.com

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1. Routing Protocol
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Tags: protocol, rip, routing