Re: switch 10G standalone TOR, core to DC

[Bao Nguyen <ngqbao () gmail com>]

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