Nortel Secure Network Access for the enterprise LAN extends endpoint security-- threat mitigation and policy compliance -- to secure the enterprise LAN infrastructure. Because so many threats are from internal users on the network, endpoint security must include wired and wireless endpoints within the corporate network.. The Nortel Secure Network Access Switch (SNAS) is the intelligent policy engine that applies and enforces security policy to any/all LAN users/devices at the point of network access. The solution provides a set of capabilities to help customers protect their networks by inspecting PC health state, restricting network access for unhealthy clients, and updating unhealthy clients for full, role-based network access, thereby ensure LAN network integrity. This is an open solution but it is tightly integrated with Nortel Ethernet Routing Switches 8300 and 5500 series. It enables a highly integrated Layer 2 security solution from a management and ease of use perspective. With the solution, the enterprise can define, deploy, and enforce a robust, and consistent security policy across its varied network segments with role based access enablement premised on user identity and session context. All devices that access the LAN network can be evaluated including the operating system, patches, anti-virus software, personal firewall status, registry settings and other system configuration components. Verifying compliance and blocking connections from non-compliant systems can guarantee 100 percent compliance with corporate policy 100 percent of the time.