TS Supplement (Includes RFC-1006 Support)

Introduction to the Tandem TCP/IP Subsystem

Introduction to RFC-1006

107751 Tandem Computers Incorporated 1–9

See the Tandem TCP/IP Configuration and Management Manual for more information on

Tandem TCP/IP components.

TCP/IP Internet Addressing This section provides summary information on the Internet and Internet addressing.

More detailed information on addressing is provided in the TCP/IP Configuration and

Management Manual.

Internet Concepts

The Internet is a virtual network that consists of large numbers of interconnected,

independent (often dissimilar) networks. Networks in the Internet are connected to

each other by devices called either gateways or protocol converters, which function to

translate dissimilar protocols. Each network consists of a number of systems, or hosts,

connected by a common communications medium, or protocol.

The addressing scheme used within TCP/IP provides a mechanism for all the parts to

appear as a single network. Figure 1-7 illustrates an example of internetworking that

is made up of two networks, several hosts and one gateway. In this figure, networks

NETA and NETB are connected by the gateway system, HOST4. The three systems

labeled HOST1, HOST2, and HOST3 belong to NETA. The other systems are

connected to NETB.