From: Jonathan Morton <chromatix99@gmail.com>
To: "Richard Scheffenegger" <rscheff@gmx.at>
Cc: Stephen Hemminger <shemminger@vyatta.com>, bloat@lists.bufferbloat.net
Subject: Re: [Bloat] Random idea in reaction to all the discussion of TCPflavours - timestamps?
Date: Thu, 17 Mar 2011 02:10:38 +0200 [thread overview]
Message-ID: <AE5720C3-739C-421C-AE5E-81D0C95D6C47@gmail.com> (raw)
In-Reply-To: <9778FB1E95C54F4C96443A051B3E831B@srichardlxp2>
On 17 Mar, 2011, at 12:07 am, Richard Scheffenegger wrote:
> IEEE 802.1Qau is becoming available with CNA (converged network adapter), 10G NIC that also have FCoE hardware on-board.
>
> This throttles individual flows - provided the entire end-to-end network also supports 802.1Qau (Quantizied Congestion Notification), as a decent enough flow granularity.
>
> Deploying this in core networks will require a forklift upgrade, as current widely deployed 10G switches don't support QCN.
Well that's an engineering failure - unless, of course, non-TCP/IP traffic is predominant in the environments these are put into. In any case, this is not a solution for the Internet.
> On another page, cheap, widely deployed Broadcom L3 ASICs (found in the low-end hardware of major network vendors) support RED in hardware - however, OEM firmware typically doesn't allow the configuration of the full feature set. (DCTCP as a TCP-based QCN-like was demonstrated with custom broadcom firmware doing the ECN marking based, soley based on current queue depth).
Ah, market segmentation, how do I hate thee? Let me count the ways.
- Jonathan
next prev parent reply other threads:[~2011-03-17 0:10 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-15 10:36 [Bloat] Random idea in reaction to all the discussion of TCP flavours " Jim Gettys
2011-03-15 14:40 ` Jim Gettys
2011-03-15 16:47 ` Jonathan Morton
2011-03-15 17:59 ` Don Marti
2011-03-15 18:14 ` Rick Jones
2011-03-15 18:31 ` John W. Linville
2011-03-15 19:40 ` Jonathan Morton
2011-03-15 19:59 ` Rick Jones
2011-03-15 20:51 ` John W. Linville
2011-03-15 21:31 ` Rick Jones
2011-03-16 0:32 ` John W. Linville
2011-03-16 1:02 ` Rick Jones
2011-03-15 22:01 ` Jonathan Morton
2011-03-15 22:19 ` Stephen Hemminger
2011-03-15 22:26 ` Jonathan Morton
2011-03-15 22:36 ` Rick Jones
2011-03-15 22:40 ` Jonathan Morton
2011-03-15 22:42 ` Stephen Hemminger
2011-03-15 22:52 ` Eric Dumazet
2011-03-15 23:02 ` Rick Jones
2011-03-15 23:12 ` Jonathan Morton
2011-03-15 23:25 ` Rick Jones
2011-03-15 23:33 ` Jonathan Morton
2011-03-15 23:46 ` Dave Täht
2011-03-16 0:49 ` Jonathan Morton
2011-03-16 1:02 ` Dave Täht
2011-03-16 1:28 ` Jonathan Morton
2011-03-16 1:59 ` Dave Täht
2011-03-16 2:23 ` Jonathan Morton
2011-03-16 22:22 ` [Bloat] Random idea in reaction to all the discussion of TCPflavours " Richard Scheffenegger
2011-03-16 23:38 ` richard
2011-03-16 23:50 ` Rick Jones
2011-03-17 12:05 ` Fred Baker
2011-03-17 12:18 ` Fred Baker
2011-03-17 17:27 ` Dave Täht
2011-03-18 18:30 ` Richard Scheffenegger
2011-03-18 18:49 ` Fred Baker
2011-03-20 11:40 ` Jonathan Morton
2011-03-20 22:18 ` david
2011-03-20 22:45 ` Jonathan Morton
2011-03-20 22:50 ` Dave Täht
2011-03-20 22:55 ` grenville armitage
2011-03-20 23:04 ` Dave Täht
2011-03-20 23:14 ` Jonathan Morton
2011-03-20 23:19 ` Dave Täht
2011-03-20 23:23 ` Dave Täht
2011-03-20 22:58 ` Jonathan Morton
2011-03-21 1:28 ` david
2011-03-21 1:56 ` Wesley Eddy
2011-03-18 18:27 ` [Bloat] Random idea in reaction to all the discussion ofTCPflavours " Richard Scheffenegger
2011-03-16 22:07 ` [Bloat] Random idea in reaction to all the discussion of TCPflavours " Richard Scheffenegger
2011-03-17 0:10 ` Jonathan Morton [this message]
2011-03-16 0:47 ` [Bloat] Random idea in reaction to all the discussion of TCP flavours " John W. Linville
2011-03-16 20:07 ` Jim Gettys
2011-03-17 2:26 ` Jonathan Morton
2011-03-17 18:22 ` Rick Jones
2011-03-17 21:50 ` Jonathan Morton
2011-03-17 22:20 ` Rick Jones
2011-03-17 22:56 ` Jonathan Morton
2011-03-18 1:36 ` Justin McCann
2011-03-18 5:51 ` Eric Dumazet
2011-03-15 16:34 ` Jonathan Morton
2011-03-15 18:13 ` Stephen Hemminger
2011-03-16 5:41 ` Fred Baker
2011-03-16 6:26 ` Jonathan Morton
2011-03-16 8:55 ` [Bloat] Random idea in reaction to all the discussion of TCPflavours " Richard Scheffenegger
2011-03-16 9:04 ` [Bloat] Random idea in reaction to all the discussion of TCP flavours " BeckW
2011-03-16 22:48 ` Fred Baker
2011-03-16 23:23 ` Jonathan Morton
2011-03-17 8:34 ` BeckW
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