[156954] in North American Network Operators' Group

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Re: So what's the deal with 10Gbase-T

daemon@ATHENA.MIT.EDU (Andreas Echavez)
Mon Oct 1 16:11:07 2012

In-Reply-To: <5069f62e.842f320a.1ea1.ffffee0eSMTPIN_ADDED@mx.google.com>
From: Andreas Echavez <andreas@livejournalinc.com>
Date: Mon, 1 Oct 2012 13:10:38 -0700
To: Jima <nanog@jima.tk>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Mostly backwards compatibility; simplicity. We're planning for some
super-high-density virtualization/storage projects mixed in with lower
bandwidth gear, and sticking to one type of cable for everything would be
convenient. I thought DAC had some distance limitations as well.

This is all speculation though, I don't have any personal experience with
the 10Gbase-T stuff either. I have no idea what to expect performance-wise.

-A

On Mon, Oct 1, 2012 at 12:58 PM, Jima <nanog@jima.tk> wrote:

> > Does anyone here have experience running copper 10Gbase-T networks? It
> > seems like the standard just died out. For us it would make a lot of
> sense
> > for our applications -- even if throughput and latency aren't as great.
> If
> > anyone out there knows of any *copper* 10 gig-t switches (48 port?), I'd
> > be
> > interested to hear your experiences. I can't seem to find any
> high-density
> > ones from major vendors.
>
>  Is there something unique about your environment that wouldn't allow you
> to use 10gbit SFP+-based switches with DAC (Direct Attach Copper) cables?
>  Those seem fairly well supported.
>
>      Jima
>
>
>

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