From: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
To: jean-pascal billaud <billaud@vmware.com>
Cc: netdev@vger.kernel.org
Subject: Re: delayed ack timer, slow start and LRO
Date: Wed, 23 Jul 2008 02:11:47 +0400 [thread overview]
Message-ID: <20080722221147.GA29276@2ka.mipt.ru> (raw)
In-Reply-To: <488654A5.5040905@vmware.com>
Hi.
On Tue, Jul 22, 2008 at 02:44:05PM -0700, jean-pascal billaud (billaud@vmware.com) wrote:
> Also as LRO adds some latency, it seems possible to me that the sender
> retransmission timer will expires before the delayed ack timer expires. In
> this case, how is this gonna work ? Is it possible that the sender will
> stay stuck in
> its slow start trying to retransmit endlessly the same n packets ?
You can check how your favourite driver handles lro and calls
lro_flush_all(), lro also aggregate packets upto predefined limits of
total size and numbr of 'inner' packets. It also self-destructs when
flow breaks (retransmit, pure ack and so on).
--
Evgeniy Polyakov
next prev parent reply other threads:[~2008-07-22 22:11 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-22 21:44 delayed ack timer, slow start and LRO jean-pascal billaud
2008-07-22 22:11 ` Evgeniy Polyakov [this message]
-- strict thread matches above, loose matches on Subject: below --
2008-07-22 21:58 jean-pascal billaud
2008-07-22 22:05 jean-pascal billaud
2008-07-23 10:41 ` Hagen Paul Pfeifer
2008-07-23 17:38 ` jean-pascal billaud
2008-07-23 12:01 ` Ilpo Järvinen
2008-07-23 17:58 ` jean-pascal billaud
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