nanog mailing list archives

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


From: Andreas Echavez <andreas () livejournalinc com>
Date: Mon, 1 Oct 2012 13:10:38 -0700

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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