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Re: [core] Request for clarification of NSTART and concurrent requests

Achim Kraus <achimkraus@gmx.net> Tue, 16 August 2022 08:47 UTC

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Date: Tue, 16 Aug 2022 10:41:58 +0200
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To: Bryan Green <bryan@aetheros.com>
Cc: core@ietf.org
References: <CAOxiEDYnxj5qtavNQ-vPKC_eo4NPJD8sEPZLjmYS5WCAsY1Tbw@mail.gmail.com> <8B08FFA2-7EB7-49EE-BEEA-7678DCAC9995@tzi.org> <C7D01F99-8710-44F8-8048-B6FC3D25EA3E@tzi.org> <CAOxiEDY0T6CgXPZwmwWazXYhNBXk+HFhoy+VBHZMdxkddj3mPA@mail.gmail.com> <CAOxiEDYZoR18Qm5=2G-f3q+9DZsPuFLFyhhwi7ijSZSFsUJD2g@mail.gmail.com>
From: Achim Kraus <achimkraus@gmx.net>
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Subject: Re: [core] Request for clarification of NSTART and concurrent requests
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Hi Bryan,

there are two options:

- 4.29 "Too many requests"
- 5.03 "Service unavailable"

both with a proper value for "Max. Age." (option 14).

best regards
Achim

Am 15.08.22 um 22:40 schrieb Bryan Green:
> What would be the appropriate response to a CON request from a
> constrained coap server that had reached its limit of concurrent
> requests from a single client?
> For example if a server was only capable of handling one CON request per
> client at a time, and a CON request was received while the prior request
> was still being processed, should the server silently ignore the packet,
> or is there an appropriate response code to inform the client of the
> need to wait?
>
>
> On Mon, Aug 15, 2022 at 1:13 PM Bryan Green <bryan@aetheros.com
> <mailto:bryan@aetheros.com>> wrote:
>
>     Thank you very much for the response.  That answers my question.
>
>     -Bryan
>
>
>     On Mon, Aug 15, 2022 at 12:22 PM Carsten Bormann <cabo@tzi.org
>     <mailto:cabo@tzi.org>> wrote:
>
>         On 15. Aug 2022, at 21:19, Carsten Bormann <cabo@tzi.org
>         <mailto:cabo@tzi.org>> wrote:
>          >
>          > heavily suggested
>
>         heavily CONgested
>
>         Sorry about that surprising auto-correct.
>
>         Grüße, Carsten
>
>
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