A method of managing communications in a packet switching network, the
method including: associating a connection protocol and an application
name with connection information from an IP datagram, the connection
information including an IP address of a computer originating the IP
datagram, a port number in the computer originating the IP datagram, an
IP address of a remote computer, and a port number in the remote
computer; storing communication session data in a file storage of the
computer originating the IP datagram, the communication session data
indicating the connection protocol, the application name, and the
connection information; storing the communication session data in a file
storage of a packet transmission device; storing a policy statement in
the file storage of the packet transmission device; and applying the
policy statement to a plurality of TCP/IP packets including the
connection information to manage communication of the plurality of TCP/IP
packets.