RFC 603 · UNKNOWN · 1973
MON · 15 JUN 2026
Response to RFC 597: Host status
Overview
RFC 603, “Response to RFC 597: Host status”, is an Unknown document published in December 1973 by J.D. Burchfiel. It updates RFC 597. It has since been updated by RFC 613. The canonical text is published by the RFC Editor.
Abstract
Questions about the ARPANET topology described in RFC 597.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 603 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1973