Due to frequent topology changes and routing overhead, selection of routing protocol in Mobile Ad-hoc Network (MANET) is a great challenge. A design issue for an efficient and effective routing protocol is to achieve optimum values of performance parameters under network scenarios. There are various routing protocols available for MANET. This paper involves study of four routing protocols (Ad-hoc On Demand Distance Vector Routing, Optimized Link State Routing, Dynamic Source Routing and Distance Sequenced Distance Vector), and performance comparisons between these routing protocols on the basis of performance metrics (throughput, packet delivery ratio, Packet dropped, jitter and end to end delay measured after simulation of network) with the help of NS3 Simulator.

This paper presents a complete guideline for developing OpenFlow infrastructure. OpenFlow is standard network protocol to manage traffic between routers and Ethernet Switches. This approach will help to create the next generation virtual network, which provides the solution for network management, flow control of packets, delay optimization etc without interfering the backbone network. Here a brief idea about all the supporting tools involved in the journey of OpenFlow has been introduced. This paper provides a solution with top to bottom approach to install OpenFlow network tools. On the basis of one by one approach user is able to solve the problem appeared during the installation with proper justifications.