In a network, routers use routing tables to select the best path for transferring data packets between a source and destination based on the network layer of the OSI model. There are two types of routing protocols: interior routing protocols that route packets within an autonomous system and exterior routing protocols that communicate between autonomous systems. Common interior routing protocols include RIP, OSPF, and EIGRP, which use different metrics and algorithms to determine the best path in the routing table.

1. ip routing
In a internetwork , routing refers to the process of transferring data from source to destination it occurs
at the network layer of Osi model . A router select the best path for the data packets based on its
routing table .
Dynamic routing can be defined as a phenomena in which the routing protocol
assigned the job or finding the path to route the packet and update the routing
table .its two types routing protocols .
 Interior
 Exterior

2. ip routing
Exterior routing protocol -Exterior routing protocol that communicate between the two
or more autonomous system are termed as exterior routing protocols.example EGP, BGP
Interior Routing protocols. The protocols used to route the packets inside
an autonomous system is termed as interior routing protocols autonomous
system are the independent network system these resposbilty to identify
best path for transmitting protocols.example-. RIP OSPF EIGRP
RIP OSPF EIGRP
Rip is distance vector
protocols.
Ospf is link state
protocols
It is derived from integrated
gateway routing protocols.
The metrics is use to
hop count
The metrics use are
bandwidth and delay
The metrics is use are
bandwidth delay load and
reliability.
Maximum hope
count 15
No hope count Maximum hop count 225
Its uses Distance
vector algorithm to
calculate the best
path
Its use to spf
algorithm to
calculate best path
Its use diffusing update
algorithm to calculate best
path.