From: "James Nichols" <jamesnichols3@gmail.com>
To: "Jan Engelhardt" <jengelh@computergmbh.de>
Cc: "Eric Dumazet" <dada1@cosmosbay.com>,
linux-kernel@vger.kernel.org,
"Linux Netdev List" <netdev@vger.kernel.org>
Subject: Re: After many hours all outbound connections get stuck in SYN_SENT
Date: Wed, 19 Dec 2007 13:12:41 -0500 [thread overview]
Message-ID: <83a51e120712191012r64783b7dk56cc4fbcbdd5685c@mail.gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0712191857270.12329@fbirervta.pbzchgretzou.qr>
> The router could be sooo crappy that it drops all packets from
> TCP streams that have SACK enabled and the client has opened
> 200+ SACK connections previously... something like that?
I don't know, maybe. My router is a fairly new model Cisco and is
pretty major (i.e. pretty expensive), so it's not just a total piece
of crap. Plus, I never restart it when I see these issues. I just
turn tcp_sack off, the problem goes away, and I'm able to renable
tcp_sack a few hours later and it works fine until many hours later
when I see the SYN_SENT problem again.
next prev parent reply other threads:[~2007-12-19 18:12 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-14 20:39 James Nichols
2007-12-17 23:14 ` Jan Engelhardt
2007-12-18 15:34 ` James Nichols
2007-12-18 16:05 ` Jan Engelhardt
2007-12-18 16:45 ` James Nichols
2007-12-18 17:19 ` Jan Engelhardt
2007-12-18 18:09 ` James Nichols
2007-12-18 18:14 ` Jan Engelhardt
2007-12-18 18:21 ` James Nichols
2007-12-18 18:30 ` Jan Engelhardt
2007-12-18 18:32 ` Eric Dumazet
2007-12-18 19:44 ` James Nichols
2007-12-18 20:37 ` Eric Dumazet
2007-12-18 21:20 ` Jan Engelhardt
2007-12-19 16:53 ` James Nichols
2007-12-19 17:07 ` Eric Dumazet
2007-12-19 17:43 ` James Nichols
2007-12-19 17:58 ` Jan Engelhardt
2007-12-19 18:12 ` James Nichols [this message]
2007-12-20 14:41 ` Glen Turner
2007-12-20 16:37 ` James Nichols
2007-12-20 21:05 ` Ilpo Järvinen
2007-12-21 6:06 ` Jan Engelhardt
2007-12-21 4:51 ` Glen Turner
2007-12-21 13:57 ` James Nichols
2007-12-19 18:03 ` Eric Dumazet
2007-12-19 21:27 ` Ilpo Järvinen
2007-12-20 16:08 ` James Nichols
2007-12-20 20:44 ` Ilpo Järvinen
2007-12-20 20:49 ` Justin Banks
2007-12-18 19:45 ` James Nichols
2007-12-18 20:28 ` Chuck Ebbert
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