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Welcome to Network Interview Questions!

What is RIP and difference between Rip V1 & Rip V2?

RIP Stands for Routing information protocol. It is also called distance vector routing protocol. It is open standard for any vendor use. It uses metric as hop count (max hop count 15) AD 120. It sends periodic update for every 30 sec. It is used for small network.

Rip V1

1. It is a Class full Protocol.
2.Classful Protocol: - Supports networks with same Subnet Mask
3.RIPV1 uses Broadcast Address
4.RIPV1 Universal Broadcast (255.255.255.255)
5. RIPV1 does not VLSM.

Rip V2

1. It is a Classless Protocol.
2.Classless Protocol: - Supports subnetted networks; It carries the information of   subnet mask
3.RIP V2 uses Multicast Address
4. RIPV2 uses Multicast (224.0.0.9). 
5.RIPV2 supports VLSM


What is EIGRP?

EIGRP stands for Enhanced Interior Gateway Routing Protocol, it is also called balanced hybrid routing protocol or advanced distance vector routing protocol. Hello packets for every 5 sec, hold time 15 sec. It support for VLSM, the multicast address is 224.0.0.10. It maintain neighbour table, topology table & routing table

  1. Neighbour – directly connected neighbour (feasible successor)
  2. Topology – all path reach to destination (feasible successor)
  3. Routing – best path (successor)

DUAL:  Diffusion update algorithm

  1. Successor is available in routing table
  2. If successor failed means it will take the feasible successor

DUAL Parameter

  1. A.D = Advertised distance (Reported Distance)
  2. F.D = Feasible distance

Reported Distance: The metric for a route advertised by a neighbour
Feasible distance: The distance advertised by a neighbour plus the cost to get to that neighbour

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