[AusNOG] 10GBs

[Luca Salvatore]

This should be pretty simple... $vendor NIC with $vendor switch should just
work for the most part.
Why are you using fiber + SFPs for this?  Get yourself some 10G DAC cables
and it will just work.

On Wed, Nov 8, 2017 at 6:03 PM, John Edwards <jaedwards at gmail.com> wrote:

> Always clean brand new patch cables.
>
> There is a specific exception for some cable systems designed to be
> installed at heights while wearing rigging gloves, the kind of environment
> where a cleaning attempt could make things worse. In that case, the
> manufacturer warrants a consistent lab-tested dB loss from gunk on the ends
> of new patch leads.
>
> John
>
>
> > On 9 Nov 2017, at 9:24 am, Bob Purdon <bobp at purdon.id.au> wrote:
> >
> >
> >> Grab an optical fibre scope while you're at it. It's amazing how dirty
> >> your cable ends and recepticals can actually be.
> >
> > Absolutely - even brand new cables directly out of the manufacturer's
> > plastic bags can be filthy.  I did have some fibre scope photos of this
> > somewhere...
> >
> >> with fibre, the major carrier datacentre operators less so - yes, they
> >> did it too) as plugging SC cables into SCA recepticals or vice versa.
> >
> > This..  ..or connectors not properly mated.  High attenuation.  Push.
> > Click.  Problem solved.
> >
> >> Have you done optical loss testing? Some network gear can tell you
> >> directly what your tx and rx power levels are.
> >
> > Be careful with this - while it can often be a good guide, I have seen
> > many cases where the diagnostic data says the SFP is transmitting, but
> > an optical power meter shows nada, zilch, zero, nuffin' (as in no light,
> > /not/ 0dBm, lol).  ..or the launch level is vastly below what the SFP is
> > reporting it is.
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