[olug] Fiber question for you guys

[Trent Melcher]

I would double check that the transmit and receive aren't crossed ( hitting light to light).  Definitely won't get link if trying to shoot light down both ends of the same cable ;)

Trent

----- Original Message -----
From: "Jay Bendon" <jaybocc2 at gmail.com>
To: "Omaha Linux User Group" <olug at olug.org>
Sent: Friday, April 29, 2016 1:02:28 PM
Subject: Re: [olug] Fiber question for you guys

First thing you should do is measure the light at both ends... you can
check 850nm with a cell phone camera, 1310 might be harder to see, just for
making sure you don't have them flipped.  But really gonna want a meter to
make sure you're within tolerance for your optics.

--Jay

On Fri, Apr 29, 2016 at 10:49 AM, Steve Busby <steve.busby at gmail.com> wrote:

> When you insert the optic on the Cisco switch, is anything being reported
> in SYSLOG?  Such as unsupported transceiver?
>
> We typically find we have to force Cisco to love 3rd party optics with a
> "service unsupported-transceiver" command.
>
> BuzB
>
> On Fri, Apr 29, 2016 at 10:45 AM, Aric Aasgaard <aric at omahax.com> wrote:
>
> > Are you sure it isn't multi-mode?
> > I would guess that the 10 footer is multimode and that probably won't
> work
> > with the single mode fiber patch cable that you are trying to use.
> >
> > Single mode is typically for long runs and takes much more expensive
> > optics.
> > It would be odd to have a 10 foot single mode run.
> >
> > -----Original Message-----
> > From: olug-bounces at olug.org [mailto:olug-bounces at olug.org] On Behalf Of
> > Justin Reiners
> > Sent: Friday, April 29, 2016 9:34 AM
> > To: Omaha Linux User Group <olug at olug.org>
> > Subject: [olug] Fiber question for you guys
> >
> > I currently have Cox fiber installed here at my location, It is a fiber
> > drop
> > with LC-LC connections, on single mode fiber. I purchased a couple cables
> > down in Bellevue to extend the run from about 10 feet to 25. The existing
> > thin, junk cable connects just fine, but both of my new cables do nothing
> > when plugged in. Does anyone have any ideas? I terminate fiber to a cisco
> > switch with a SMF dongle.
> >
> > These cables are much nicer and heavier, but I cannot get a link light
> with
> > them.
> >
> > --
> >
> > [image: Hotlines Inc] <http://www.partshotlines.com>
> >
> > Justin Reiners / System Administrator
> > 800.308.9712/ justin at hotlinesinc.com <Justin at HotlinesInc.com>
> >
> > Hotlines Inc Office: 800.807.2867 / Fax: 800.211.0843
> > 427 E. Kanesville Blvd. Suite 403, Council Bluffs, IA 51503
> > http://www.partshotlines.com
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