Connection-oriented demux TCP socket identified Server host may support by 4-tuple: many simultaneous TCP o source IP address sockets: o source port number o each socket identified by o dest IP address its own 4-tuple o dest port number ▣Veb servers have recy host uses all four different sockets for values to direct each connecting client segment to appropriate o non-persistent HTTP will socket have different socket for each request Transport Layer 3-12Transport Layer 3-12 Connection-oriented demux  TCP socket identified by 4-tuple:  source IP address  source port number  dest IP address  dest port number  recv host uses all four values to direct segment to appropriate socket  Server host may support many simultaneous TCP sockets:  each socket identified by its own 4-tuple  Web servers have different sockets for each connecting client  non-persistent HTTP will have different socket for each request