1. Routing Information Protocol (RIP) :
RIP, in which distance vector routing protocol is used for data/packet transmission. In Routing Information protocol (RIP), the maximum number of Hop is 15, because it prevents routing loops from source to destination. Mechanism like split horizon, route poisoning and holdown are used to prevent from incorrect or wrong routing information. Sally Floyd and Van Jacobson  suggest that, without slight randomization of the timer, the timers are synchronized overtime. Compared to other routing protocol, RIP (Routing Information Protocol) is poor and limit size i.e., small network. The main advantage of using RIP is it uses the UDP (User Datagram Protocol).
2. Interior Gateway Routing protocol (IGRP) :
IGRP, in which uses distance vector protocol (interior) to exchange data within a system. It supports multiple metrics for each node which includes delay, load and bandwidth, in order to compare the 2 routes which are combined into single metrics. The port number for IGRP is 9 which are used for communication and by default every 90 seconds it updates the routing information.
Difference between RIP and IGRP :
|1||RIP stands for Routing Information Protocol.||IGRP Stands For Interior Gateway Routing protocol.|
|2||RIP works on Bellman Ford algorithm.||IGRP also works on Bellman ford Algorithm.|
|3||It is a industry standard dynamic routing protocol.||It is a Cisco standard routing protocol.|
|4||It is basically use for smaller size organization.||It is basically use for medium to larger size organization in the network.|
|5||RIP is a distance vector protocol.||IGRP is also a distance vector protocol.|
|6||It allow maximum hop count upto 15.||It allow maximum hop count upto 255.|
|7||It’s administrative distance is 120.||It’s administrative distance is 100.|
|8||It is not a more intelligent dynamic routing protocol.||It is a more intelligent routing protocol than RIP.|
|9||It calculates the metric In terms of Hop Count.||It calculates the metric In terms of bandwidth, load and delay.|
|10||RIP routing protocol creates two table in the router: Routing Table, Topology Table.||EIGRP routing protocol creates three table In the router : Neighbor Table, Topology Table, Routing Table.|
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