I'm reading Comer's TCP/IP book, where (page 107 of the 4th edition, if you're interested) he states: <BR><BLOCKQUOTE class="ip_ubbcode_quote"><font size="-1">quote ...

The purpose of the network layer is to help route messages between different local networks. Central to this layer is the concept of exclusive network addresses, where every terminal connected to the ...

Breaking an IP datagram (packet) into pieces in order to be sent across a transmission link with a frame size smaller than the datagram. Performed in a router, the header of the original IP packet is ...