The network layer transfers user messages from a source host to a destination host. In TCP/IP, the heart and soul of this layer is the Internet Protocol, which is the IP of TCP/IP. IP receives data ...

A top-down exploration of networking using the 5-layer model and the TCP/IP stack. HTTP, FTP, DNS, BSD Sockets, concurrent servers, checksums, reliable transport with stop-and-wait, go-back-n, ...

Layer 5 provides coordination ... The most ubiquitous example is the IP protocol in TCP/IP (see TCP/IP). IPX, SNA and AppleTalk are examples of earlier routable protocols, which means that ...