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[core] Stateless proxy and 5.04 (Gateway Timeout)

Christer Holmberg <christer.holmberg@ericsson.com> Sun, 03 November 2019 08:33 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: "core@ietf.org" <core@ietf.org>
Thread-Topic: Stateless proxy and 5.04 (Gateway Timeout)
Thread-Index: AQHVkA1UqhSd4EHH80awVRCwM08YrA==
Date: Sun, 03 Nov 2019 08:32:55 +0000
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Subject: [core] Stateless proxy and 5.04 (Gateway Timeout)
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Hi,

I have a couple of questions for clarification on Section 3.2. of  the stateless draft:

The text says:

   ”Such an intermediary might want to be "stateless" as well, i.e., be
   alleviated of storing the client's token and transport address for
   received requests.  This can be implemented by serializing this
   information along the request state into the token towards the origin
   server.  When the intermediary receives the response, it can recover
   the information from the token and use it to satisfy the client's
   request.”

Q1: If the intermediary does *not* receive a response to the request sent towards the origin server, how can it send the 5.04 (Gateway Timeout) response?

Q2: If the intermediary does not maintain request state, how can it even associate a request a timeout timer (that would trigger the 5.04 response) with the request sent towards the origin server?

Regards

Christer

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