RFC 347 · UNKNOWN · 1972
MON · 15 JUN 2026
Echo process
Overview
RFC 347, “Echo process”, is an Unknown document published in May 1972 by J. Postel. The canonical text is published by the RFC Editor.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 347 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 1972
- RFC 346 Satellite Considerations
- RFC 348 Discard Process
- RFC 345 Interest in Mixed Integer Programming
- RFC 349 Proposed Standard Socket Numbers
- RFC 344 Network Host Status
- RFC 350 User Accounts for UCSB On-Line System
- RFC 343 IMP System change notification
- RFC 351 Graphics information form for the ARPANET graphics resources notebook