From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Date: Mon, 28 May 2018 18:56:40 +0000
Subject: Re: [PATCH net] sctp: not allow to set rto_min with a value below 200 msecs
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To: Michael Tuexen <michael.tuexen@lurchi.franken.de>
Cc: Dmitry Vyukov <dvyukov@google.com>, Neil Horman <nhorman@tuxdriver.com>, Xin Long <lucien.xin@gmail.com>, network dev <netdev@vger.kernel.org>, linux-sctp@vger.kernel.org, David Miller <davem@davemloft.net>, David Ahern <dsa@cumulusnetworks.com>, Eric Dumazet <edumazet@google.com>, syzkaller <syzkaller@googlegroups.com>

On Sun, May 27, 2018 at 10:58:35AM +0200, Michael Tuexen wrote:
...
> >>> Patch looks fine, you probably want to note this hard minimum in man(7) sctp as
> >>> well
> >>> 
> >> I'm aware of some signalling networks which use RTO.min of smaller values than 200ms.
> >> So could this be reduced?
> > 
> > Hi Michael,
> > 
> > What value do they use?
> I have seen values of
> RTO.Min     =  50ms
> RTO.Max     = 200ms
> RTO.Initial = 100ms

Those look doable to me.

Thanks,
Marcelo