RFC 626 · UNKNOWN · 1974
WED · 17 JUN 2026
On a possible lockup condition in IMP subnet due to message sequencing
Overview
RFC 626, “On a possible lockup condition in IMP subnet due to message sequencing”, is an Unknown document published in March 1974 by L. Kleinrock, H. Opderbeck. 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 626 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 1974
- RFC 625 On-line hostnames service
- RFC 627 ASCII text file of hostnames
- RFC 624 Comments on the File Transfer Protocol
- RFC 628 Status of RFC numbers and a note on pre-assigned journal numbers
- RFC 623 Comments on on-line host name service
- RFC 629 Scenario for using the Network Journal
- RFC 622 Scheduling IMP/TIP down time
- RFC 630 FTP error code usage for more reliable mail service