Network Working Group Steve Crocker Request for Comments: 1 UCLA 7 April 1969 Title: Host Software Author: Steve Crocker Installation: UCLA Date: 7 April 1969 Network Working Group Request for Comment: 1 CONTENTS INTRODUCTION I. A Summary of the IMP Software Messages Links IMP Transmission and Error Checking Open Questions on the IMP Software II. Some Requirements Upon the Host-to-Host Software Simple Use Deep Use Error Checking III. The Host Software Establishment of a Connection High Volume Transmission A Summary of Primitives Error Checking Closer Interaction Open Questions Crocker [Page 1]

RFC 1 Host Software 7 April 1969 I . A Summary of the IMP Software Crocker [Page 2]

RFC 1 Host Software 7 April 1969 Crocker [Page 3]

RFC 1 Host Software 7 April 1969 Crocker [Page 4]

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RFC 1 Host Software 7 April 1969 Crocker [Page 6]

RFC 1 Host Software 7 April 1969 Crocker [Page 7]

RFC 1 Host Software 7 April 1969 A . Before Link Establishment Crocker [Page 8]

RFC 1 Host Software 7 April 1969 Crocker [Page 9]

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RFC 1 Host Software 7 April 1969