Software defined networks (SDN)

Server virtualization has become a reality for almost any company looking to stay competitive in the global market as virtualization enables much better management, flexibility and reliability. In the past, communication traffic was routed through external dedicated switches and separate management systems. This required companies to manage servers and networks separately, resulting in a slow and laborious process. At the same time, this approach gave rise to security concerns as all servers were a part of server clusters, which means that an attack on a single server put the entire system at risk.

Network virtualization opens a completely new dimension of IT infrastructure management, mainly by delivering significantly improved security through the ability to define the manner of network access for each server individually. This delivers a high level of security as each server is isolated and ensures that when a server is attacked other servers are unaffected.

For companies that often deploy new services (servers or applications) network virtualization means network definitions are automatically applied immediately after the server is deployed without requiring additional switch configuration, which means significant time savings.