RFC 1063 · UNKNOWN · 1988
WED · 29 JUL 2026
IP MTU discovery options
Overview
RFC 1063, “IP MTU discovery options”, is an Unknown document published in July 1988 by J.C. Mogul, C.A. Kent, C. Partridge, K. McCloghrie. It has been obsoleted by RFC 1191 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
A pair of IP options that can be used to learn the minimum MTU of a path through an internet is described, along with its possible uses. This is a proposal for an Experimental protocol.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 1063 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1988
- RFC 1062 Internet numbers
- RFC 1064 Interactive Mail Access Protocol: Version 2
- RFC 1065 Structure and identification of management information for TCP/IP- based internets
- RFC 1066 Management Information Base for network management of TCP/IP-based internets
- RFC 1059 Network Time Protocol specification and implementation
- RFC 1067 Simple Network Management Protocol
- RFC 1058 Routing Information Protocol
- RFC 1068 Background File Transfer Program