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Requirements for the design of a Substrate Protocol for User Datagrams (SPUD)

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Brian Trammell , Mirja Kühlewind
Last updated 2016-11-14 (Latest revision 2016-05-10)
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


We have identified the potential need for a UDP-based encapsulation protocol to allow explicit cooperation with middleboxes while using new, encrypted transport protocols. This document proposes an initial set of requirements for such a protocol, and discusses tradeoffs to be made in further refining these requirements.


Brian Trammell
Mirja Kühlewind

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)