From: David Lamparter <equinox@diac24.net>
To: Hagen Paul Pfeifer <hagen@jauu.net>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
David Miller <davem@davemloft.net>,
equinox@diac24.net, hans.schillstrom@ericsson.com,
netdev@vger.kernel.org
Subject: Re: RFC Hanging clean-up of a namespace
Date: Thu, 19 Jan 2012 22:47:18 +0100 [thread overview]
Message-ID: <20120119214718.GC3347849@jupiter.n2.diac24.net> (raw)
In-Reply-To: <20120119214052.GA12249@hell>
On Thu, Jan 19, 2012 at 10:40:53PM +0100, Hagen Paul Pfeifer wrote:
> * Eric W. Biederman | 2012-01-19 13:24:13 [-0800]:
>
> >This thread is a fascinating disconnect from reality all of the way
> >around.
> >
> >- inet_twsk_purge already implements throwing out of timewait sockets
> > when a network namespaces is being cleaned up. So the RFC is nonsense.
>
> This is how it is implemented, not how it should be. TIME_WAIT is not the
> problem, it is there to keep the stack from sending wrong RST messages. Maybe
> the 2*MSL could be fixed by a more accurate 2*RTT.
I may have made that argument hidden behind a joke, but please refer to
the development of RFC 793's bootup "quiet time". The reason no one
sticks to this quiet time is that TCP timestamps have obsoleted it by
providing a better frame of reference. Refer to RFC 1323 Appendix B
"DUPLICATES FROM EARLIER CONNECTION INCARNATIONS".
-David
next prev parent reply other threads:[~2012-01-19 21:47 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-19 11:07 RFC Hanging clean-up of a namespace Hans Schillstrom
2012-01-19 13:31 ` David Lamparter
2012-01-19 17:40 ` David Miller
2012-01-19 19:01 ` David Lamparter
2012-01-19 19:06 ` David Miller
2012-01-19 19:25 ` David Lamparter
2012-01-19 19:31 ` David Miller
2012-01-19 19:53 ` David Lamparter
2012-01-19 20:27 ` David Miller
2012-01-19 21:03 ` David Lamparter
2012-01-19 21:24 ` Eric W. Biederman
2012-01-19 21:40 ` David Lamparter
2012-01-19 21:40 ` Hagen Paul Pfeifer
2012-01-19 21:47 ` David Lamparter [this message]
2012-01-19 22:10 ` Rick Jones
2012-01-19 22:16 ` Hagen Paul Pfeifer
2012-01-19 22:37 ` David Miller
2012-01-20 6:08 ` Hans Schillstrom
2012-01-20 10:08 ` Eric W. Biederman
2012-01-20 11:51 ` Hans Schillstrom
2012-01-20 20:55 ` Eric W. Biederman
2012-01-23 6:07 ` Hans Schillstrom
2012-01-23 6:25 ` Eric W. Biederman
2012-01-23 6:58 ` Hans Schillstrom
2012-01-23 7:17 ` Eric W. Biederman
2012-01-23 7:30 ` Hans Schillstrom
2012-01-23 7:55 ` Eric W. Biederman
2012-01-19 19:40 ` Hans Schillström
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