netdev - Re: Channel bonding with e1000

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <alpine.WNT.1.10.0809081133290.7512@jbrandeb-MOBL1.amr.corp.intel.com>
Date:	Mon, 8 Sep 2008 11:37:47 -0700 (Pacific Daylight Time)
From:	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>
To:	Carsten Aulbert <carsten.aulbert@....mpg.de>
cc:	netdev@...r.kernel.org
Subject: Re: Channel bonding with e1000

On Fri, 5 Sep 2008, Carsten Aulbert wrote:
> I have a brief problem and would ask for a little assistance:
> 
> On a few data servers we intend to do channel bonding. The boxes have
> two NICs on the motherboard and two extra ones on an expansion card:
> 
> 04:00.0 Ethernet controller: Intel Corporation 631xESB/632xESB DPT LAN
> Controller Copper (rev 01)
> 04:00.1 Ethernet controller: Intel Corporation 631xESB/632xESB DPT LAN
> Controller Copper (rev 01)

To help you with your consideration: this chip is embedded in the ESB2 
southbridge, and is connected (technically) over PCIe.

> 05:02.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
> Controller (rev 03)
> 05:02.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet
> Controller (rev 03)

This chip is connected over PCI-X and should be significantly slower 
and/or higher CPU utilization than the ESB2 based chip.

Both have 64kB of internal FIFO per port, split between tx and rx.

> My simple question would be: Does it matter which two ports I can use to
> channel together when using in a set-up with MTU=9000?

It shouldn't matter, but I would take into consideration that the ESB2 
ports should be faster.

Jesse

PS in the future questions like this could be cc:'d to 
e1000-devel@...ts.sourceforge.net where all the Intel wired developers 
hang out (in addition to netdev)
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html