A File Transfer Protocol

1st Edition - August 12, 1986

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  • Author: Author Unknown
  • eBook ISBN: 9781483293950

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This authoritative, all-in-one introduction, manual, and complete reference shows readers - at all levels of technical expertise - how to use Kermit to transfer diverse data between different computer systems and data communications environments. Using tutorials, case studies, and examples of actual Kermit codes, it provides instructions for basic use and a detailed description of the Kermit protocols: * File management through protocols * Command referencing and extended features * Telecommunications protocols


Data communications specialists

Table of Contents

  • List of Figures

    List of Tables




    Part I-The Basics

    1. Introduction


    Sharing Versus Selling

    Kermit Versus Networks

    Why is This Book So Thick?

    How to Get Kermit

    2. The Basics

    What is a Protocol?

    How the Kermit Protocol Works

    Conventions Used in This Book

    Getting Connected

    How to Transfer Files with Kermit

    The End of the Easy Part

    Part II-Primers

    3. Computers and Files

    Hardware and Software

    How Computers Represent Data

    Operating Systems

    The Console Terminal

    Disks, Diskettes, Formats

    Directories, Files

    Naming Conventions for Files

    File Organization

    File Management

    Encoding of Text

    Versions of Files

    End of File

    Other File Attributes

    Characteristics of Selected Systems

    Data Communication

    Serial Transmission

    Asynchronous Transmission

    Connectors and Pin Assignments

    Duplex and Echo

    Flow Control



    Other Communication Equipment

    Public Data Networks

    Cables and Connectors Revisited

    The IBM World

    Data Communications Parameters of Selected Systems

    Part III-User Guide

    5. Kermit Command Reference

    Terminology and Syntax Review

    The Command Dialog

    Invoking Kermit Programs

    Terminal Emulation Commands

    Commands for Transferring Files

    Commands for Server Operation

    Bureaucratic Commands

    The SET Command

    Login Scripts

    Raw Download and Upload

    6. Common Problems and How to Fix Them

    Basic Connection Problems

    File Transfer Problems

    ASCII/EBCDIC Translation

    If All Else Fails

    7. Bootstrapping

    Bootstrapping to the Local Micro

    Bootstrapping in the Other Direction

    For Many, the End

    Part IV-Programmer Guide

    8. How to Write a Kermit Program

    Programming Language

    Programming Style

    The User Interface





    9. Protocol Specification

    Basic File Transfer


    Encoding and Decoding of Data

    Initial Connection Negotiation

    The Missing Pieces

    10. Optional Features

    Eighth-Bit Prefixing

    Run-Length Encoding

    Encoding Summary

    Encoding Performance

    Sacred Characters

    Block Check Options

    Graceful Interruption of File Transfer

    11. The Client/Server Model

    The I Packet

    The Client

    The Server

    12. Advanced Options

    The Capabilities Mask

    Transmitting and Preserving File Attributes

    Performance Options

    13. Discussion and Analysis

    Kermit Implementation Tricks

    Kermit versus Other Protocols

    It's Too Late Now


    A. Remaining Pieces of the Kermit Program

    B. Kermit Command Summary

    C. Kermit Packet Summary

    D. The ASCII Character Set

    E. Binary, Octal, and Hexadecimal Numbers




Product details

  • No. of pages: 379
  • Language: English
  • Copyright: © Digital Press 1986
  • Published: August 12, 1986
  • Imprint: Digital Press
  • eBook ISBN: 9781483293950

About the Author

Author Unknown

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