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Re: statement regarding keepalives

Tom Herbert <tom@herbertland.com> Thu, 16 August 2018 15:04 UTC

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From: Tom Herbert <tom@herbertland.com>
Date: Thu, 16 Aug 2018 08:04:02 -0700
Message-ID: <CALx6S36cKu1dNWr2VbbGit4-b18tBap_LY7StXAgBRDY_1a=Xg@mail.gmail.com>
Subject: Re: statement regarding keepalives
To: Mikael Abrahamsson <swmike@swm.pp.se>
Cc: "Olle E. Johansson" <oej@edvina.net>, "netconf-chairs@ietf.org" <netconf-chairs@ietf.org>, "tls-ads@ietf.org" <tls-ads@ietf.org>, "tsv-area@ietf.org" <tsv-area@ietf.org>, "tsvwg-ads@tools.ietf.org" <tsvwg-ads@tools.ietf.org>
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On Thu, Aug 16, 2018 at 8:01 AM, Mikael Abrahamsson <swmike@swm.pp.se> wrote:
> On Thu, 16 Aug 2018, Tom Herbert wrote:
>
>> They are already on, TCP has a default keepalive for 2 hrs. The issue
>
>
> http://tldp.org/HOWTO/TCP-Keepalive-HOWTO/usingkeepalive.html says:
>
> "Remember that keepalive support, even if configured in the kernel, is not
> the default behavior in Linux."
>
> Which OSes default to this on?
>
Linux, but I misread the code. The default keepalive timeout is 2
hrs., but it needs to be enabled per socket.

Tom

>
> --
> Mikael Abrahamsson    email: swmike@swm.pp.se

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