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73 lines
2.9 KiB
Plaintext
73 lines
2.9 KiB
Plaintext
.NC "Introduction"
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.sh 1 "Introduction"
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.pp
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This document describes the usage of the ISO
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transport and network layers written for the ACIS Operating System,
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the IBM ACIS port of Berkeley 4.3 Unix\**
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.(f
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\** Unix is a registered trademark of AT&T.
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.)f
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for the IBM RT PC,
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hereafter called AOS, as modified by UC Berkeley.
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This document describes work in progress and is an extremely
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hasty job of editing an earlier document written by colleagues
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at the university of Wisconsin.
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It is to be regarded as an emergency manual prepared for testers
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at NIST and should not be redistributed further.
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As such, there are philosophical
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statements that Berkeley fundamentally disagrees with, which
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we do not presently have the time to rip out.
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Collectively, this work is called the Wisconsin ARGO kernel.
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The ARGO kernel supports the
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the connection-oriented ISO transport service (COTS), the
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ISO connectionless network service (CLNS)
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and a
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connection-oriented network service (CONS).
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The COTS is provided by the ISO transport protocol TP,
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ISO 8073 Revised.
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The CLNS is provided by the connectionless network protocol,
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ISO 8473.
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The CONS is provided by the X.25 protocols.
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The ARGO implementation of the CONS is not a complete
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ISO CONS, but contains enough of the CONS to support
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the COTS and the CLNS (in the latter case, the CONS can be
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viewed as a subnetwork service).
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.pp
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The purposes of this document are
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.ip "1) "
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to describe the transport service and the software interface
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between the user and provider of this service,
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.ip "2) "
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to describe the network service and the software interface it
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provides.
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.pp
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It is assumed that the reader is familiar with the \fBC\fR
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programming language,
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with Unix conventions, and with the ISO specifications listed in Appendix A.
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.sh 1 "Organization"
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.pp
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This document is composed of several chapters.
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Chapter One contains this introduction. Chapter Two presents a
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definition of terms and phrases used throughout the document.
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Chapter Three describes the transport service interface, which is
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the interface between the transport protocol implementation software and the transport user software.
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Chapter Four describes the network service interface, and the interface
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above and below the network layer.
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Chapter Five explains the format of an OSI address.
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Chapter Six describes the
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the architecture of the interprocess communication support in the
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kernel, which to a large degree mandates
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the design of a protocol implementation for a 4.3 Unix kernel.
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.\" Appendix A is a list of the applicable ISO standards.
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.\" The manual pages relevant to the transport and network layers
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.\" are included as Appendix B.
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.pp
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Several conventions are followed in this document.
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All procedure names and system call names are followed
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by a pair of parentheses, for example,
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.i read ().
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References to manual pages consist of the name of the
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manual page, followed by the section in which
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the man page is found:
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.i read (2).
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