RFC 447 · UNKNOWN · 1973
MON · 15 JUN 2026
IMP/TIP memory retrofit schedule
Overview
RFC 447, “IMP/TIP memory retrofit schedule”, is an Unknown document published in January 1973 by A.M. McKenzie. It obsoletes RFC 434. It has been obsoleted by RFC 476 — refer to the newer document for the authoritative version. 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 447 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1973
- RFC 446 Proposal to consider a network program resource notebook
- RFC 448 Print files in FTP
- RFC 445 IMP/TIP preventive maintenance schedule
- RFC 449 Current flow-control scheme for IMPSYS
- RFC 450 MULTICS sampling timeout change
- RFC 443 Traffic statistics
- RFC 451 Tentative proposal for a Unified User Level Protocol
- RFC 442 Current flow-control scheme for IMPSYS