From: Hal Murray <hmurray@megapathdsl.net>
To: bloat@lists.bufferbloat.net
Cc: Hal Murray <hmurray@megapathdsl.net>
Subject: Re: [Bloat] ipspace.net: "QUEUING MECHANISMS IN MODERN SWITCHES"
Date: Wed, 28 May 2014 02:39:20 -0700 [thread overview]
Message-ID: <20140528093920.9351E406062@ip-64-139-1-69.sjc.megapath.net> (raw)
> in non discarding scheduling total delay is conserved,
> irrespective of the scheduling discipline
Is that true for all backplane/switching topologies?
> The question is if (codel/pie/whatever) AQM makes sense at all for 10G/40G
> hardware and higher performance irons? Igress/egress bandwidth is nearly
> identical, a larger/longer buffering should not happen. Line card memory is
> limited, a larger buffering is defacto excluded.
The simplest interesting case is where you have two input lines feeding the
same output line.
AQM may not be the best solution, but you have to do something. Dropping any
packet that won't fit into the buffer is probably simplest.
--
These are my opinions. I hate spam.
next reply other threads:[~2014-05-28 9:39 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-28 9:39 Hal Murray [this message]
2014-05-28 11:00 ` Jonathan Morton
2014-05-28 18:56 ` David Lang
2014-05-28 22:15 ` Bill Ver Steeg (versteb)
2014-05-29 7:20 ` Neil Davies
2014-05-29 14:06 ` Jonathan Morton
2014-05-29 16:58 ` Dave Taht
-- strict thread matches above, loose matches on Subject: below --
2014-05-27 8:21 Hagen Paul Pfeifer
2014-05-27 10:45 ` Neil Davies
2014-05-27 12:20 ` Hagen Paul Pfeifer
2014-05-27 12:34 ` Neil Davies
2014-05-28 18:44 ` David Lang
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