On 8/14/2024 3:17 PM, Slavko via mailop wrote:
Dňa 14. augusta 2024 13:48:38 UTC používateľ Dave Crocker via
mailop<mailop@mailop.org> napísal:
Making a distance-sensitive assumption about traffic behavior is a suprisingly
bad idea for anything having to do with the Internet. Resources and their uses
can be -- and often are -- a long way away and using connections with wildly
varied performance characteristics.
But we talk about 300 sec vs. 30 sec timeout for **TLS handshake**.
That is why I was careful not to argue against timeouts, per se, but
merely not to consider expected distance as a factor.
There are a number of reasons for needing timeouts. And the choice of
how long or short one should be often is operationally subjective.
Just don't make an assumption about the distance between user and server
as part of the analysis.
Anyway, i understand original suggestion not as distance in meters, but
as distance to contact... And that distance is definitelly different for
SMTP and for Submission(S).
I mean distance in any terms at all. Don't assume the user is distant
or close in miles or fast or slow in response time. Or high or low in
bandwidth.
One of the serious problems with having excellent, high performance,
highly reliable connections for so many of us, for so much of the time,
is that it leads to designers and admins thinking that that operational
reality applies to everyone, all the time. It doesn't.
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
mast:@dcrocker@mastodon.social
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