RE: [PATCH 1/1] tcp: Wrong timeout for SYN segments

On Thu, 2012-08-23 at 13:35 +0100, David Laight wrote:

quoted

I would suggest to increase TCP_SYN_RETRIES from 5 to 6.

180 secs is eternity, but 31 secs is too small.

Wasn't the intention of the long delay to allow a system
acting as a router to reboot?
I suspect that is why it (and some other TCP timers)
are in minutes.

One could argue that if an application really wants to connect to a
peer, it should probably handle failures and retries.

But for unaware (basic ?) applications, the 3 -> 1 change reduced by a 3
factor the timeout. So a transient network failure has now more
chance to impact them.

Not all applications run inside a browser or under human control...