As enterprise networks migrate to converged and integrated architectures in order to achieve new business flexibility and efficiencies, enterprise IT planners are discovering an increased need to ramp up security considerations. Security must be planned for and built into converged communications networks and applications to achieve their design objectives.

One of the results of security and business planning is to develop and adopt an appropriate communications architecture that can deliver a systematic approach to secure and continuous communications. A systematic approach helps ensure that the best practices of creating security in depth are applied across all dimensions of enterprise communications including:

• Secure infrastructure elements
• Secure access, authentication and authorization
• Secure applications
• Survivability and failover