emulator on mac using switch controllers

SDN enables admins to control the way switches handle the data, provide QoS (Quality of Service), and automate the process to make it less tedious and erroneous.įigure 1: Abstract view of conventional networking versus SDNĪdvantages of SDN over traditional networking So, there has to be some interface between the forwarding plane and the controlling plane, which is provided by the OF (Open Flow) protocol. These control the path of packets coming to switches known as the OFvSwitch (Open Flow Virtual Switch). Unlike traditional networking, SDN has separate devices called SDN controllers which control the data path. The main difference between traditional networking and SDN is the way in which data is handled and forwarded. With the demand for cloud computing increasing, SDN has evolved as the most efficient way of controlling networking using some high level language to make the programming as flexible as possible.

Since the use of cloud computing is increasing, it is necessary to automate the configurations as much as possible.Īccording to the ONF (Open Network Foundation) definition, SDN is actually a decoupling of the network control plane and the forwarding plane. Fortunately, SDN couldnt have evolved at a better time. SDN has been introduced as a replacement for conventional networking, to meet market requirements. There has been a dramatic increase in Internet usage over the past few years, as compared to the use of networking technology, which hasnt been engaged as much.

SDN is all about controlling the network through software or, in other words, making the network programmable. SDN is a revolutionary idea in computer networking that ensures significant flexibility and simplicity in network control and management, apart from giving a broader scope for innovation through programmability.

Emulator on mac using switch controllers