About the X.25 Product

Introduction

 

Introduction

 

The Hewlett-Packard X.25 link for HP 9000 systems provides

 

networking link hardware and software to allow HP computer systems to

 

communicate with other HP and non-HP computers over X.25 packet

 

switching networks.

 

The X.25 link implements the CCITT X.25 Recommendations and

 

contains the components necessary to connect an HP 9000 to a public or

 

private packet switching network conforming to the CCITT X.25

 

Recommendation (1980, 1984 or 1988), or to another system in a

 

back-to-back configuration.

 

The information in this manual applies to HP 9000 Series 700 and 800

 

systems that use single, dual, or quad-port communications hardware.

 

Any differences are specifically noted.

 

 

NOTE

In a diskless cluster, X.25 software is only supported on the server

 

system. It is not supported on client systems for this type of

 

environment.

 

 

The following diagram illustrates the X.25 link architecture where:

•solid white boxes represent the product’s integral components.

•lightly shaded boxes represent the product’s protocol components.

•heavily shaded boxes represent optional components (external to the product) that can be added to the product.

Each component depends on the component(s) below it and must be installed and running in order to support higher-level components.

16

Chapter 1