Application-Oriented Networking (AON) initiative. AON “integrates application message-level communication, visibility, and security into the fabric of the network” AON is currently available in two products that integrate into Cisco switches and routers. It sounds like AON could be used to enforce protocol and security policies. I wonder if this might eventually happen on a per-port basis. Per-port security would move the job of enforcing security away from choke-point products like firewalls.”]
Source: https://taosecurity.blogspot.com/2005/12/brief-thoughts-on-cisco-aon-i-received.html