Types of routing protocols:
1.Static routing.
2.Dynamic routing.
3.default static routing.
Static routing:
The administrator has to manually enter the networks he wants to connect.
Dynamic routing:
The administrator only needs to put the own directly connected networks only.
The protocol will find the best and shortest path.
e.g: RIP, IGRP, EIGRP, OSPF.
Default Static routing:
It is used to send packets with a remote destination network not in the routing table to
the next hop router.
We can use default routing only in the stub router.
stub router- it is having only one exit interface.
Classes of routing protocols:
-->Distance vector routing protocols(RIP IGRP).
-->Link state routing protocols(OSPF).
-->Hybrid routing protocols(EIGRP,RIP V2).
-->Distance vector routing protocols(RIP IGRP):
They find the best path to a remote network by judging the distance.
They send the entire routing table to directly connected neighbours.
Eg: RIP, IGRP.
-->Link state routing protocols(OSPF):
They maintain three tables (1) Neighbor table (2)Topology table(3)Routing
Information Table(RIT).
They send updates to the directly connected neighbors about their links.
Eg:OSPF.
-->Hybrid routing protocols(EIGRP,RIP V2):
They use both properties fo distance vector and link state(combination of both)
Eg: EIGRP
