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Re: [DNSOP] Benjamin Kaduk's Discuss on draft-ietf-dnsop-session-signal-12: (with DISCUSS and COMMENT)

Benjamin Kaduk <kaduk@mit.edu> Mon, 30 July 2018 18:16 UTC

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Date: Mon, 30 Jul 2018 13:14:55 -0500
From: Benjamin Kaduk <kaduk@mit.edu>
To: "Mirja Kuehlewind (IETF)" <ietf@kuehlewind.net>
Cc: The IESG <iesg@ietf.org>, tjw.ietf@gmail.com, dnsop@ietf.org, dnsop-chairs@ietf.org, draft-ietf-dnsop-session-signal@ietf.org
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Subject: Re: [DNSOP] Benjamin Kaduk's Discuss on draft-ietf-dnsop-session-signal-12: (with DISCUSS and COMMENT)
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Hi Mirja,

On Mon, Jul 30, 2018 at 08:11:52PM +0200, Mirja Kuehlewind (IETF) wrote:
> Hi Ben, hi all,
> 
> as you summoned an TSV AD...
> 
> > Am 27.07.2018 um 17:24 schrieb Benjamin Kaduk <kaduk@MIT.EDU>:
> > 
> > I should probably leave this to my (transport-area?) colleagues to discuss
> > further, but I'm not sure that the interaction of this mechanism with
> > high-RTT connections is fully covered -- for example, the inactivity
> > timeout in Section 6.4(.x) could behave poorly when the timeout is set to a
> > smaller value than the RTT, as the server would potentially end up starting
> > the "forcibly abort" process (and potentially causing the client to lose
> > for an hour) because the server's timer starts when it sends the DSO
> > response that initiates its idea of the session, and would not recieve
> > graceful shutdown messages from a properly-behaving client in time.
> 
> My understanding is that they require a minimum time-out of 5 second at the server side, which seems reasonably safe to me. However, maybe this could be further clarified or explained in the doc.

I'm happy to defer to your expertise -- thanks!

-Benjamin

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