[114609] in North American Network Operators' Group
Re: NPE-G2 vs. Sup720-3BXL
daemon@ATHENA.MIT.EDU (Azher Mughal)
Fri May 15 22:51:38 2009
Date: Fri, 15 May 2009 19:51:09 -0700
From: Azher Mughal <azher@hep.caltech.edu>
To: NANOG list <nanog@nanog.org>
In-Reply-To: <20090516024155.GA37325@ussenterprise.ufp.org>
Reply-To: azher@hep.caltech.edu
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
New architectures might be helpful to achieve such throughput e.g.
Myricom pci-e Gen2 10GE cards on new Intel Nehalem based servers.
-Azher
Leo Bicknell wrote:
> In a message written on Fri, May 15, 2009 at 10:25:12PM -0400, Valdis.Kletnieks@vt.edu wrote:
>> Did you check PCI bus bandwidth? That's probably going to be the biggest
>> constraint on "a few 10GBE interfaces" if they all get going full blast.
>> Remember that each packet is going to burn bandwidth twice - once in and
>> once out...
>
> PCIe, x8 or x16, which is serial point to point.
>
> http://www.csc.kth.se/~olofh/10G_OSR/10Gbps.pdf
>
> 25 Gb/sec across 4x10G ports on higher end but far from topped out
> hardware.
>
