It is difficult to overestimate the importance of Information Technology today. If, a few years ago, this statement was mainly applicable to large enterprises, now it is certainly true for any business, regardless of its size or industry. Information is power in the current economic climate. So, having the right information available whenever it’s needed will help businesses remain competitive in the marketplace. This increased dependence on up-to-date information creates reliance on IT in general and networking infrastructure in particular. Highly available and reliable infrastructure is required for secure information delivery. Network performance means availability of information, and thus, business performance. Reliability and fault tolerance are crucial for maintaining continuous network operations. Planning for disaster recovery that allows information availability under any circumstance is one of the necessary tasks for business continuity in the short term and is a critical success factor for any business over the much longer term.