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Cached and Async meSsage Transport (CAST)

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Suhas Nandakumar , Cullen Fluffy Jennings
Last updated 2023-04-27 (Latest revision 2022-10-24)
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This Internet-Draft is no longer active.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:


This specification defines message transport, called CAST, based on publish/subscribe semantics for interoperable inter-server messaging that is rooted in modern, cloud friendly and scalable architectural underpinnings.


Suhas Nandakumar
Cullen Fluffy Jennings

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