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 ...

The current IP address scheme of 32-bit words is fast becoming inadequate. It would appear that 2 32 = 4 294 967 296 combinations of addresses should be enough for everybody, but in practice this is ...

The data transfer in a TCP/IP network is usually block-based. From a programmer’s point of view, sending data means issuing a series of “send data block” requests. On a system level, sending an ...

Networks function and flourish because they deliver reliable and fast communication over large distances. And while people often marvel at the speed, it's the reliability -- made possible through the ...

The TCP/IP access method for the OS/390 host uses routines in the SAS/C Transient Library for communications services. This library relies on an underlying layer of TCP/IP communications software such ...

You're probably familiar with the Internet Protocol. After all, it's the "IP" in IPv4 and IPv6. The set of rules that routes data across networks so that it gets to the correct destination. The ...

A network device that forwards traffic based on layer 3 information at very high speeds. Traditionally, routers, which inspect layer 3, were considerably slower than layer 2 switches. In order to ...