2005 Survivor's Guide
Although such security policies aren't new, 802.1X makes them much easier to set up based on user. These resources require additional layers of authentication, but the standard still hardens the center of the network. You don't have to sacrifice performance to add security to internal networks. Most vendors can do access lists in ASICs on their core routers, so there's no penalty for the extra overhead of filtering every packet.
Wireless features also continue to cross into the wired network. Extreme Networks, Foundry Networks and other vendors have edge switches that incorporate intelligence formerly found on the access points. This is done to simplify security and make it possible to roam from one AP to another. Cisco Systems released its WLSM (Wireless LAN Services Module) card this year for the high-end 6500 chassis. That card forces all wireless traffic to the core.