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What you mean by RIP v1,v2,OSPF,IGRP,EIGRP?

Updated on August 31, 2008



RIP V1: It is a simple distance vector protocol. It has been enhance with various techniques, including Split Horizon and Poison Reverse in order to enable it to perform better in complicated network

The longest path cannot exceed 15 hops.

RIP uses static metrics to compare routes.



What you mean by RIP v2?

RIP V2: It added several new features.

External route tags.

Subnet masks

Next hop router addresses.


Multicast support.


Explain about OSPF?

OSPF: Open Shortest Path First is a dynamic routing protocol for use in Internt Protocol(IP networks).It is a link state routing protocols. It falls into the group of interior gateway protocols, operating within an autonomous system(AS). Link-State routing protocol that calls for the sending of link-state advertisements (LSAs) to all other routers within the same hierarchial area. Information on attached interfaces, metrics used, and other variables is included in OSPF LSAs. As OSPF routers accumulate link-state information, they use the SPF algorithm to calculate the shortest path to each node.

METRIC: COST=bandwidth/interface bandwidth


Explain about EIGRP?

EIGRP: EIGRP is a Cisco proprietary routing protocol derived from IGRP. EIGRP can be called as hybrid protocol or an advanced distance-vector routing protocol, with optimizations to minimize both the routing instability incurred after topology changes, as well as the use of bandwidth and procession power in the router. Routers that support EIGRP will automatically redistribute route information to IGRP neighbors by converting the 32 bit EIGRP metric to the 24 bit IGRP metric. Most of the routing optimizations are based on the Diffusing update Algorithm(DUAL).

MERIC: Load, delay,bandwidth, reliability and MTU

Explain about IGRP?

IGRP:IGRP is a distance vector Interior Gateway Protocol(IGP). Distance vector routing protocols mathematically compare routes using some measurement of distance. This measurement is know as distance vector. Routers using a distance vector protocol must send all or a portion of their routing table in a routing-update message at regular intervals to each of their neighboring routers. As routing information proliferates through the network, routers can identify new destinations as they are added to the network, learn of failures in the network, and, most improtanly, calculate distances to all know destinations. IGRP uses a composite metric that is calculated by factoring weighted mathematical values for internetwork delay, bandwidth, reliability, and load. Network administrators can set the weighting factors for each of these metrics. Default metrics are Reliability and load.

Administrative Distance:100

MERIC: Load, delay,bandwidth, reliability and MTU


Karthick M



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    • profile image

      vikash chauhan 

      6 years ago

      that is good learning point for me. so i like this site

    • profile image

      arun chauhan 

      6 years ago

      eigrp is good for routing on router, ospf is also but it is full of traffic conjuction.

    • karthickjck profile imageAUTHOR


      7 years ago from Bangalore

      My option would be OSPF

    • profile image


      7 years ago

      Thanks, which one will be the most preferred protocol if its implemented on the same network topology.

    • profile image


      8 years ago

      good defination


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