Re: [Cerowrt-devel] 10GigE nics and SFP+ modules?

[dpreed@reed.com]

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I agree with you if you have to install Cat6a and Cat7 structured wiring in a building! What a nightmare trying to find contractors who can meet spec on junction boxes, etc. and do the right testing.  Every connector on the path is problematic.

But for "casual" home networking use or research lab experiments, copper is fine.  That was my point.  I think in a "rack-scale" datascenter networking situation. probably better to go with fiber, but copper costs are attractive.
 
 


On Tuesday, September 9, 2014 12:06am, "Joel Wirāmu Pauling" <joel@aenertia.net> said:



> Note I know whilst you are talking copper. IME 10Gbit copper is
> nothing but a hassle. You are lucky to get 30Metres out of a run
> without Negotiation issues.
> 
> I encourage you strongly to look to using Optical LX style fibre if
> you are moving to 10G. The cost of structured cabling and the length
> of runs is a lot cheaper than Cat6a/7 runs needed for 10gbit copper.
> 
> On 9 September 2014 16:03, Joel Wirāmu Pauling <joel@aenertia.net>
> wrote:
> > Just a head's up I have had issues with the X5xx intel SFP+ optics
> > interoperating with other vendors. This may not be an issue for your
> > deployment.
> >
> > If you want good interop then Broadcom based optics seem to be the
> > best bet at the moment.
> >
> > On 9 September 2014 12:09, Wes Felter <wmf@felter.org> wrote:
> >> The Intel X710 just came out today; it's a little cheaper. (Note that the
> >> X710 is 10G and the XL710 is 40G because XL is 40 in Roman numerals.)
> >>
> >>
> http://www.colfaxdirect.com/store/pc/viewPrd.asp?idproduct=2227&idcategory=0
> >>
> >> (I've never bought from Colfax, but they carry a lot of "enterprise"
> >> equipment that isn't available on NewEgg/Amazon.)
> >>
> >> There are super-cheap optics and twinax available from China. You may
> have
> >> to hack the Intel driver since they're not "supported".
> >>
> >> http://www.fiberstore.com/c/10g-sfp+_63
> >> http://www.fiberstore.com/c/10g-sfp+-cables_1115
> >>
> >> Or you could just get an account at the Snabb Lab.
> >>
> >> --
> >> Wes Felter
> >> IBM Research - Austin
> >>
> >>
> >> _______________________________________________
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> >> Cerowrt-devel@lists.bufferbloat.net
> >> https://lists.bufferbloat.net/listinfo/cerowrt-devel
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