RFC 680 · UNKNOWN · 1975
MON · 15 JUN 2026
Message Transmission Protocol
Overview
RFC 680, “Message Transmission Protocol”, is an Unknown document published in April 1975 by T.H. Myer, D.A. Henderson. It updates RFC 561. The canonical text is published by the RFC Editor.
Abstract
Extends message field definition beyond RFC 561 attempts to establish syntactic and semantic standards for ARPANET; see also RFCs 733 and 822.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 680 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1975
- RFC 679 February, 1975, survey of New-Protocol Telnet servers
- RFC 681 Network UNIX
- RFC 677 Maintenance of duplicate databases
- RFC 683 FTPSRV - Tenex extension for paged files
- RFC 684 Commentary on procedure calling as a network protocol
- RFC 685 Response time in cross network debugging
- RFC 686 Leaving well enough alone
- RFC 687 IMP/Host and Host/IMP Protocol changes