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In [3] author proposes protect the network routing protocol and management protocols. Because

insider attacks are probably one of the most challenging research problem in network 

management. In OSPF, a group of router make the network, these routers in that network exchange information and forward packet to each other. In this paper the researcher analyzes the

OSPF and identifying the problems that create in that network during forwarding packets.

Because if one router have a problem then whole network disturbed due to this one. So thatresearcher applies one attack to this OSPF network to analyze the performance of the OSPF

routing protocol. That attack very powerful and block the router to update in 60 minutes by

simple inter one wrong OSPF data unit. This work fully based on simulation and practice.

In [4] author proposes OSPF routing protocol simulation in different categories. First one isDesignated Router (DR) elect for constant time. In this case 50 routers can also accept the

convergence time, and if any problem create then retransmission possible. Second one is if router 

has limited input buffers, then the compare the results between election and flooding protocols

increase the election time. In that effect create oscillatory behavior. In fact that 20-50 router network has very low impact of buffer size. Third one is that in which DR and BDR are both

fails in same time, then convergence time increase. If convergence time increase then the router cannot updated and data dropped in any condition. So that if interval increases then the

convergence time decrease.

In [5] author proposes the traffic engineering for adapting the routing of traffic to check the

 performance and be able to use of network recourses. In this article, researcher describes theintra domain traffic engineering that works base on the interior gateway protocol. Such as most

useful interior gateway protocol is OSPF routing protocol. In this report researcher describe theOSPF configuration of links, based on a wide network view of traffic and topology with in adomain. The researcher also compares different optimization results and collects the data. Main

idea of this research paper is also analyze the short path routing protocol are able to flow of 

traffic in large IP network.

In [6] author describes the internet growth with the passage of time. Internet service Provider (ISPs) increase the traffic demand with new technology and also recourses that utilization. In a

network packet also sent from source to destination with following protocol. The most

commonly use Intra domain routing protocol is OSPF. In OSPF routing protocol every link haveitself cast, but that cast set by a specific formula. The OSPF weight setting is also directly impact

on network performance. So that main problem is that which algorithm is more suitable for this

 purpose. For this purpose researcher collect the results from different optimization scenarios for comparisons. Researcher also applies the linear programming for this purpose, but most

commonly algorithm is used for this OSPF is Link State Algorithm.

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References:

[1] Tatiana Brito, Lee Luan Ling., An OPNET Modeler Based Simulation Platform for 

 Adaptive Routing Protocol. Brazil : FEEC,UNICAMP Campanies,S.P.

[2] Anindya Basu, Jon G.Rieck., Stability Issues in OSPF Routing. Newyork : Bell

Laboraties Aleri lnc.

[3] Brain Vetter,Feiyi Wang,S.Felix Wu., An Experimental Study of Insider Attacks for 

the OSPF Routing Protocol. Carolina : secure and Highly Available networking

Group,Dept.of Computer Science.North Carolina State University. 5-30183.

[4] Deepinder Sidhu,Tayang Fu,Shukri Abdallah and Raj Nair., Open Shortest Path

First (OSPF) Routing Protocol Simulation. Maryland : Rob Coltun. 20742 .

[5] Bernard Fortz,Jennifer Rexford and Mikkel Thorup., "Traffic Engineering With

 Traditional IP Routing Protocols." IEEE Communications Magazine. October 2002, pp.

118-124.

[6] M.Ericsson,M.G.C.Resend And P.M. Pardalos., A Generic Algorithm for the weight 

setting problem in OSPF Routing . Gainesville, USA. : s.n., October 9,2001.