OPNET offers professional services for capacity planning, performance optimization, and configuration auditing to ensure network integrity, security, and policy compliance. OPNET uses its best practice methodologies to model the behavior of complex Layer 2/3 networks, including routers, switches, protocols, servers, and the individual applications they support. OPNET engineers can effectively plan the deployment of new services and technologies; audit network device configurations; tune server performance; properly size capacity to support projected traffic growth; achieve service level compliance through QoS and traffic engineering; and ensure network survivability and security.