A CCESS G ATEWAY20 IntroductionLoad BalancingLoad balancing is available as an optional module. See “Load Balancing and Link Failover” onpage 33 for a more complete description and typical use cases.Logout Pop-Up WindowAs an alternative to the ICC, the NSE delivers a HTML-based pop-up window with thefollowing functions: Provides the opportunity to display a single logo. Displays the session’s elapsed/count-down time. Presents an explicit Logout button.See also, “Information and Control Console” on page 18.MAC FilteringMAC Filtering enhances Nomadix' access control technology by allowing systemadministrators to block malicious users based on their MAC address. Up to 50 MAC addressescan be blocked at any one time. See also, “Session Rate Limiting (SRL)” on page 25.Multi-Level Administration SupportThe NSE allows you to define 2 concurrent access levels to differentiate between managers andoperators, where managers are permitted read/write access and operators are restricted to readaccess only.Once the logins have been assigned, managers have the ability to perform all write commands(Submit, Reset, Reboot, Add, Delete, etc.), but operators cannot change any system settings.When Administration Concurrency is enabled, one manager and three operators can access theAccess Gateway platform at any one time.Multi-WAN Interface ManagementThe NSE supports multiple independently configurable WAN interfaces, to optimize ISPresource allocation, and provide load balancing (optional), fail-over and upsell capabilities.NTP SupportThe NSE supports Network Time Protocol (NTP), an Internet standard protocol that assuresaccurate synchronization (to the millisecond) of computer clock times in a network ofcomputers. NTP synchronizes the client’s clock to the U.S. Naval Observatory master clocks.
