Development issues regarding the cerowrt test router project
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From: Mikael Abrahamsson <swmike@swm.pp.se>
To: dpreed@reed.com
Cc: "cerowrt-devel@lists.bufferbloat.net"
	<cerowrt-devel@lists.bufferbloat.net>
Subject: Re: [Cerowrt-devel] Build instructions for regular OpenWRT with Ceropackages
Date: Tue, 30 Jun 2015 21:58:08 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.02.1506302151240.9487@uplift.swm.pp.se> (raw)
In-Reply-To: <1435681242.435511455@apps.rackspace.com>

On Tue, 30 Jun 2015, dpreed@reed.com wrote:

> What happens if the SoC ports aren't saturated, but the link is GigE? 
> That is, suppose this is an access link to a GigE home or office LAN 
> with wired servers?

As far as I can tell, the device looks like this:

wifi2------
wifi1----\|
 	SOC2 6-|
 	SOC1 5-|
 	WAN  4-|
 	LAN1 3-| (switch)
 	LAN2 2-|
 	LAN3 1-|
 	LAN4 0-|

LAN1-4 and SOC2 is in one vlan, and SOC1 and WAN is in a second vlan. This 
basically means there is no way to get traffic into SOC1 that goes out 
SOC2 that will saturate either port, because they're both gige. Only way 
to saturate the SOC port would be if the SOC itself "created" traffic, for 
instance by being a fileserver, or if there is significant traffic on the 
wifi (which has PCI-E connectivity).

So it's impossible to congest SOC1 or SOC2 (egress) by running traffic 
LAN<->WAN alone.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se

  reply	other threads:[~2015-06-30 19:58 UTC|newest]

Thread overview: 119+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-19 14:44 [Cerowrt-devel] Latest build test - new sqm-scripts seem to work; "cake overhead 40" didn't Alan Jenkins
2015-06-19 16:41 ` Sebastian Moeller
2015-06-19 17:35   ` Alan Jenkins
2015-06-19 20:12     ` Dave Taht
2015-06-19 20:40       ` Alan Jenkins
2015-06-19 20:51         ` Dave Taht
2015-06-19 20:57           ` Dave Taht
2015-06-19 20:57           ` Alan Jenkins
2015-06-19 21:06             ` Dave Taht
2015-06-19 21:24               ` Dave Taht
2015-06-19 21:52                 ` Luis E. Garcia
2015-06-19 23:32                   ` Dave Taht
2015-06-20  5:52                   ` Sebastian Moeller
2015-06-23  2:41                 ` Jim Reisert AD1C
2015-06-23  7:20                   ` Sebastian Moeller
2015-06-23 12:55                     ` [Cerowrt-devel] performance numbers from WRT1200AC (Re: Latest build test - new sqm-scripts seem to work; "cake overhead 40" didn't) Mikael Abrahamsson
2015-06-23 14:09                       ` Dave Taht
2015-06-23 17:25                       ` Sebastian Moeller
2015-06-23 18:15                         ` Jonathan Morton
2015-06-24  5:21                           ` Mikael Abrahamsson
2015-06-24  5:19                         ` Mikael Abrahamsson
2015-06-24 11:31                         ` Mikael Abrahamsson
2015-06-24 16:32                           ` Dave Taht
2015-06-25  1:53                             ` Aaron Wood
2015-06-25  3:07                               ` Mikael Abrahamsson
2015-06-25  3:32                                 ` Aaron Wood
2015-06-25  9:12                             ` Mikael Abrahamsson
2015-06-25 10:26                               ` Mikael Abrahamsson
2015-06-25 20:13                               ` Dave Taht
2015-06-25 20:16                                 ` Dave Taht
2015-06-25 20:24                                 ` Toke Høiland-Jørgensen
2015-06-25 22:14                                   ` Dave Taht
2015-06-26  6:58                                   ` Mikael Abrahamsson
2015-06-26  7:12                                 ` Mikael Abrahamsson
2015-06-26  9:46                           ` Sebastian Moeller
2015-06-26 12:26                             ` Mikael Abrahamsson
2015-06-26 14:17                               ` Sebastian Moeller
2015-06-26 14:49                               ` Mikael Abrahamsson
2015-06-26 16:18                                 ` Jonathan Morton
2015-06-26 16:31                                   ` Mikael Abrahamsson
2015-06-26 16:35                                     ` Jonathan Morton
2015-06-26 17:04                                       ` Dave Taht
2015-06-26 18:24                                         ` Dave Taht
2015-06-26 18:38                                           ` Mikael Abrahamsson
2015-06-26 18:58                                             ` Dave Taht
2015-06-26 18:59                                               ` Dave Taht
2015-06-26 19:11                                                 ` Mikael Abrahamsson
2015-06-26 19:13                                                   ` Dave Taht
2015-06-27  5:03                                               ` Mikael Abrahamsson
2015-06-27  5:18                                                 ` Dave Taht
2015-06-27  5:50                                                   ` Mikael Abrahamsson
2015-06-27 17:59                                                     ` Dave Taht
2015-06-27 18:23                                                       ` Mikael Abrahamsson
2015-06-27 18:52                                                         ` Dave Taht
2015-06-27 23:13                                                       ` Sebastian Moeller
2015-06-28  7:06                                                   ` Mikael Abrahamsson
2015-06-28  8:23                                                     ` Sebastian Moeller
2015-06-28 10:29                                                       ` Mikael Abrahamsson
2015-06-28 17:04                                                         ` Sebastian Moeller
2015-06-28 17:32                                                           ` Mikael Abrahamsson
2015-06-28 17:58                                                             ` Jonathan Morton
2015-06-28 18:04                                                               ` Dave Taht
2015-06-28 18:55                                                                 ` Sebastian Moeller
2015-06-28 19:17                                                                   ` Mikael Abrahamsson
2015-06-28 19:24                                                                     ` Sebastian Moeller
2015-06-28 20:48                                                                       ` Mikael Abrahamsson
2015-06-28 21:23                                                                         ` Sebastian Moeller
2015-06-29  4:58                                                                           ` Mikael Abrahamsson
2015-06-29  5:11                                                                             ` Mikael Abrahamsson
2015-06-29  7:46                                                                               ` Sebastian Moeller
2015-06-29  7:54                                                                                 ` Mikael Abrahamsson
2015-06-29  7:56                                                                                   ` Sebastian Moeller
2015-06-29  8:10                                                                                   ` Sebastian Moeller
2015-06-29  8:17                                                                                     ` Mikael Abrahamsson
2015-06-29  8:24                                                                                       ` Sebastian Moeller
2015-06-29  7:44                                                                             ` Sebastian Moeller
2015-06-29  8:09                                                                               ` Mikael Abrahamsson
2015-06-29  8:34                                                                                 ` Sebastian Moeller
2015-06-29  8:42                                                                                 ` Sebastian Moeller
2015-06-29  9:12                                                                                   ` Mikael Abrahamsson
2015-06-29 10:09                                                                                     ` Toke Høiland-Jørgensen
2015-06-29 13:00                                                                                       ` Mikael Abrahamsson
2015-06-29 13:34                                                                                         ` Sebastian Moeller
2015-06-29 13:46                                                                                           ` dpreed
2015-06-29 16:45                                                                                             ` Jonathan Morton
2015-06-30 13:58                                                                                             ` [Cerowrt-devel] Build instructions for regular OpenWRT with Ceropackages Mikael Abrahamsson
2015-06-30 16:20                                                                                               ` dpreed
2015-06-30 19:58                                                                                                 ` Mikael Abrahamsson [this message]
2015-07-01  8:23                                                                                                   ` David Lang
2015-07-01 10:32                                                                                                     ` Mikael Abrahamsson
2015-07-01 11:55                                                                                                       ` Sebastian Moeller
2015-07-01 15:37                                                                                                   ` dpreed
2015-06-29 13:42                                                                                         ` [Cerowrt-devel] performance numbers from WRT1200AC (Re: Latest build test - new sqm-scripts seem to work; "cake overhead 40" didn't) Sebastian Moeller
2015-06-29 16:44                                                                                           ` Dave Taht
2015-06-29 18:24                                                                                             ` Sebastian Moeller
2015-06-29 22:15                                                                                             ` Mikael Abrahamsson
2015-06-29 22:49                                                                                             ` Mikael Abrahamsson
2015-06-30  8:00                                                                                             ` Mikael Abrahamsson
2015-06-30  9:40                                                                                               ` Mikael Abrahamsson
2015-07-02 15:33                                                                                                 ` Mikael Abrahamsson
2015-07-02 15:39                                                                                                   ` Toke Høiland-Jørgensen
2015-07-02 15:43                                                                                                     ` Mikael Abrahamsson
2015-07-02 15:47                                                                                                       ` Toke Høiland-Jørgensen
2015-07-02 16:06                                                                                                         ` dpreed
2015-07-02 19:12                                                                                                           ` Mikael Abrahamsson
2015-07-07  1:07                                                                                                           ` David Lang
2015-07-02 16:09                                                                                                         ` Rich Brown
2015-07-02 16:12                                                                                                           ` Toke Høiland-Jørgensen
2015-07-03 11:38                                                                                                   ` Mikael Abrahamsson
2015-06-29  6:12                                                                       ` Mikael Abrahamsson
2015-06-28 18:48                                                             ` Sebastian Moeller
2015-06-26 16:34                                   ` Dave Taht
2015-06-26 16:27                                 ` Sebastian Moeller
2015-06-26 16:36                                   ` Mikael Abrahamsson
2015-06-26 16:43                                     ` Dave Taht
2015-06-26 17:01                                       ` Mikael Abrahamsson
2015-06-23 14:35                     ` [Cerowrt-devel] Latest build test - new sqm-scripts seem to work; "cake overhead 40" didn't Jim Reisert AD1C
2015-06-23 14:40                       ` Dave Taht
2015-06-19 20:37     ` Sebastian Moeller

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