Mobile unexpected Networks (MANETs) may be a combination of wireless mobile nodes that exchanges data and dynamically type a network of self-configuring and self-organizing with none fastened infrastructure or centralized administration. MANETs is extremely necessary within the researches of the military and civilian applications. Routing may be a major half within the success of any communication between these mobile nodes, thus a routing protocols play a crucial role to find Associate in Nursing economical and reliable route between mobile nodes from supply to destination . This paper focuses on the performance analysis of those well-known routing protocols named DSR, AODV and OLSR and combined and it evaluates the performance supported the speed of file transfer protocol (FTP) traffic and ranging the quantity of nodes during a 2 entirely dissimilar situations to assess the performance of every protocol and confirm the simplest. During this work, the performance comparison between the AODV, DSR and OLSR and combined routing protocol in terms of load, finish to finish delay, and outturn are performed by victimization OPNET version fourteen.5 machine .In this analysis, work is finished by variable nodes at completely different quality. In Edouard MANET nodes move freely so that they work on battery. because of that it's potential that it's going to fail throughout operation and recover the network. might this can} may cause a few impact in Edouard MANET and during this impact is measured and impact of nodes failure is analyzed with operating of nodes with completely different protocol.
MANETs, AODV, DSR, OLSR, FTP, OPNET.