Router information protocol is an intra domain routing protocol.

1. Presented By:-
Arvind Singh Tanwar

2.  RIP is a routing protocol for exchanging
routing table information between routers.
› Routing updates must be passed between
routers so that they can make the proper
choice on how to route a packet.

3.  Distance Vector routing Protocol which employs hop count as routing
metric
 Maximum hop count is 15
 A hop count of 16 is considered as unreachable
 Sends routing table updates in every 30 seconds
 Administrative Distance is 120
 Classful routing protocol
 Good for small networks
 Uses bellman ford Algorithm
 Uses UDP port 250

4.  Update timer – 30 sec
 Invalid Timer - 180 sec
 Flush Time Timer - 240 sec
 Hold Down Timer – 180 sec

5. o Split horizon – Not useful to send
information about a route back in the direction
from which it came.
o Poison Reverse – Updates that are sent to
invalidate a route and place it in hold-Down

6.  Classful routing
 Does not support VLSM
 Does not send subnet mask
with periodic updates
 Uses 255.255.255.255 to
send periodic updates
 Does not support
authentication
 Low convergence time
 Classless routing
 Support VLSM
 Sends Subnet mask with
periodic update
 Uses 224.0.0.9 to send the
periodic update
 Supports authentication
 First convergence time