EIGRP (Enhanced Interior Gateway Routing Protocol)
Today I'm going to talk about best routing protocol.That is EIGRP. It was Cisco Proprietary but in Mid-2013 it become open standard. Even it was very famous before become open standard.
Here are some reasons why I am saying it best-
1.Backup Routes-
EIGRP contain Backup Routes in it's Topology table, so in case of any failure this Backup Route goes up.So what OSPF and IS-IS also have topology table and backup path also so why EIGRP???
Yes right OSPF and IS-IS also have Topology table like EIGRP. But EIGRP have backup route as Feasible Successor (all pre-calculated paths in case of failure ) so in case of failure Feasible Successor become Successor in few millisecond. In OSPF and IS-IS they contains every possible path in topology table so in case of any failuer OSPF run SPF Algo. to calculate best path and it takes some time.
2.Simple Configuration-
Configuration of EIGRP are very simple and easy to understand.
3.Flexibility in Summarization -
In OSPF there is only specific places like ABR, ASBR where you can summarize route, but in EIGRP you can summarize route at any point of network.
4.Unequal cost Load- Balancing -
If you have to different bw connection and you want to do Load- balancing between them according to their bandwidth. For eg. I have two connection one is 2MPS and another is 1MBPS. And I want when I send 2 packet over 2 MBPS connection next packet should go on 1 MBPS or can say you want a packet sending ratio 2:1. So with help of EIGRP this is also possible.
5.Combines best of Distance Vector and Link State -
That's a topic of debate.Book says it is Hybrid. Cisco says it is Advance Distance Vector but I say it simply Distance Vector. And I haven't said that believe me ... :P :D
Today I'm going to talk about best routing protocol.That is EIGRP. It was Cisco Proprietary but in Mid-2013 it become open standard. Even it was very famous before become open standard.
Here are some reasons why I am saying it best-
1.Backup Routes-
EIGRP contain Backup Routes in it's Topology table, so in case of any failure this Backup Route goes up.So what OSPF and IS-IS also have topology table and backup path also so why EIGRP???
Yes right OSPF and IS-IS also have Topology table like EIGRP. But EIGRP have backup route as Feasible Successor (all pre-calculated paths in case of failure ) so in case of failure Feasible Successor become Successor in few millisecond. In OSPF and IS-IS they contains every possible path in topology table so in case of any failuer OSPF run SPF Algo. to calculate best path and it takes some time.
2.Simple Configuration-
Configuration of EIGRP are very simple and easy to understand.
3.Flexibility in Summarization -
In OSPF there is only specific places like ABR, ASBR where you can summarize route, but in EIGRP you can summarize route at any point of network.
4.Unequal cost Load- Balancing -
If you have to different bw connection and you want to do Load- balancing between them according to their bandwidth. For eg. I have two connection one is 2MPS and another is 1MBPS. And I want when I send 2 packet over 2 MBPS connection next packet should go on 1 MBPS or can say you want a packet sending ratio 2:1. So with help of EIGRP this is also possible.
5.Combines best of Distance Vector and Link State -
That's a topic of debate.Book says it is Hybrid. Cisco says it is Advance Distance Vector but I say it simply Distance Vector. And I haven't said that believe me ... :P :D
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