Mobile ad-hoc network is network where nodes communicate without any central administration or network infrastructure. This paper to enhancement the ad-hoc on-demand distance vector of network which the authors concentrate on link failure issue and its effect in the performance in Ad-hoc network. And that enhancement will be done by using AOMDV protocol. This paper stated to compare 3 popular routing protocols, AOMDV, AODV and DSR. Results show that DSR is best performance than others protocols (AOMDV and AODV) in throughput and goodput based on performance metrics Packet Delivery rate, delay, throughput and goodput. And that done by using NS2 simulator over Linux operating system environment.