RFC 449 · UNKNOWN · 1973
MON · 15 JUN 2026
Current flow-control scheme for IMPSYS
Overview
RFC 449, “Current flow-control scheme for IMPSYS”, is an Unknown document published in January 1973 by D.C. Walden. It updates RFC 442. 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 449 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1973
- RFC 448 Print files in FTP
- RFC 450 MULTICS sampling timeout change
- RFC 447 IMP/TIP memory retrofit schedule
- RFC 451 Tentative proposal for a Unified User Level Protocol
- RFC 446 Proposal to consider a network program resource notebook
- RFC 452 TELNET Command at Host LL
- RFC 445 IMP/TIP preventive maintenance schedule
- RFC 453 Meeting announcement to discuss a network mail system