Tuesday, September 27, 2016

OSPF Versus RIP




Which is the type of OSPF protocol
Interior gateway protocol

How OSPF is used
To distribute routing information within single AS

Which technology used by OSPF
Link state technology

Which new concept has been introduced in OSPF
  • Authentication of routing updates
  • Variable length Subnet Mask VLSM
  • Route summarization


OSPF versus RIP


What is the maximum hop counts supported by RIP
15

Does RIP support VLSM
No

How RIP send updates
Periodic broadcast of full routing table
Consume a large amount of bandwidth


1) RIP converges _____ than OSPF

Which concept RIP does not support
Network delay and lick costs

How routing decision done by RIP
Based on hop counts

Which path is preferred in RIP?
Path with a lowest hop count to a destination

What is the drawback of selecting path based on hop count
Longer path having better bandwidth and less delay not preferred

2) RIP networks are ___ networks

Does RIP network support areas or boundaries
No

Which enhancement were introduced in RIP version 2
VLSM , authentication and multicast routing updates

What are limitation with RIP version 2
Routing decision on hop counts
Slow convergence


Is there any limitation of hop count on OSPF network
No

How OSPF send link state updates
Using multicast address

When OSPF send updates
In case routing changes

Does OSPF routers send periodic updates?
no


3)OSPF has better ____ than RIP


How OSPF network is design
Logical divided into areas
Hierarchical design

What is the advantage of logically dividing network into areas
Limits link state updates


What are the various features of OSPF
  • Routing authentication based on various method
  • Provide better load balancing
  • Transfer and tagging of external routes injected in to an Autonomous System
  • Keep track of external routes injected by protocol like BGP 





Answer
1) Slower
2) Flat
3) Convergence


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