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PAD Ser vices

Introduction

Chapter 6130

Introduction

This section describes X.25/9000 PAD (Packet Assembler/Disassembler)

Services which enable HP 9000 computers to connect and communicate

with remote systems over a Packet Switching Network (PSN).

NOTE Refer to “Configuring PAD Services” in Chapter 3 for information on

configuring PAD Services with SMH.

PAD Services include the following commands and functions:

• x29server – for PAD support for remote terminals:

A daemon process that allows a local HP 9000 system to function as

a host for (real or emulated) terminals attached to a remote PAD.

• x29printd – for remote PAD printer support:

A daemon process that allows local HP 9000 computers to print at

printers attached to a remote PAD.

• x29uucpd – for PAD-UUCP connectivity:

A daemon process that allows HP 9000 computers to originate

UNIX-to-UNIX copy services over an X.25 Switched Virtual Circuit

(SVC).

• padem – for local PAD emulation:

A user command that allows a local HP 9000 system to emulate both

a terminal and a PAD for connection with remote systems over a

PSN.

CCITT Recommendations

X.25/9000 PAD Services are compliant with the X.25, X.28, X.29, and X.3

CCITT Recommendations of 1984.

Recommendation X.28 defines the exchange of messages between PAD

terminals and the PAD. A superset of the commands defined by this

protocol are performed by padem.

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HP CommonIO Products Manual de usuario Pagina 130