[160916] in North American Network Operators' Group
Re: switch 10G standalone TOR, core to DC
daemon@ATHENA.MIT.EDU (Bao Nguyen)
Tue Feb 19 23:21:20 2013
In-Reply-To: <511A6395.1060507@foobar.org>
Date: Tue, 19 Feb 2013 20:21:09 -0800
From: Bao Nguyen <ngqbao@gmail.com>
To: nanog@nanog.org
Reply-To: bn@ucsd.edu
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Anyone have worked with the switching vendor Quanta for their 10ge switching as
TOR? [1] Their spec looked interesting and they are quiet cheap.
[1]
http://www.quantaqct.com/en/01_product/02_detail.php?mid=30&sid=114&id=116&qs=63
-bn
0216331C
On Tue, Feb 12, 2013 at 7:45 AM, Nick Hilliard <nick@foobar.org> wrote:
> On 12/02/2013 14:23, Piotr wrote:
> > shared 9 MB packet buffer
> > pool that is allocated dynamically to ports that are congested
> >
> > 9MB is a standard size of port buffers..
>
> That's pretty standard for a cut-thru ToR switch of this style. Cut-thru
> switches generally need a lot less packet buffer space than store-n-forward
> switches. Also, ToR boxes tend not to have complex qos requirements.
>
> Having said that, you need to be careful deploying small-buffer boxes. If
> you're not careful, you will end up with bad packet loss.
>
> Nick
>
>
>
>
