RFC 442 · UNKNOWN · 1973
MON · 15 JUN 2026
Current flow-control scheme for IMPSYS
Overview
RFC 442, “Current flow-control scheme for IMPSYS”, is an Unknown document published in January 1973 by V. Cerf. It has since been updated by RFC 449. 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 442 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1973
- RFC 441 Inter-Entity Communication - an experiment
- RFC 443 Traffic statistics
- RFC 440 Scheduled network software maintenance
- RFC 439 PARRY encounters the DOCTOR
- RFC 445 IMP/TIP preventive maintenance schedule
- RFC 438 FTP server-server interaction
- RFC 446 Proposal to consider a network program resource notebook
- RFC 437 Data Reconfiguration Service at UCSB