The Extreme Networks, Inc. 98000-X460-24X EWP Premier TAC & OS X460-24X 98000X46024X is a 24x7x365 managed security appliance that provides comprehensive security for your network. The 98000-X460-24X EWP Premier TAC & OS X460-24X 98000X46024X features a TAC (Threat Assessment and Classification) engine that identifies and classifies threats, as well as an OS X (Operating System X) engine that protects your network against the latest threats. The 98000-X460-24X EWP Premier TAC & OS X460-24X 98000X46024X also includes a firewall, intrusion detection and prevention, and a web filtering capability.