[AusNOG] Gig BX optics

[Mitchell Warden]

The 40 and 80km variants are available and affordable nowadays. We use them quite a bit.
The 80km are typically 1550/1490nm to get the extra reach.

10G SFP+ on single fibre are available now too, for ~10km distances at least.

Cheers.
Mitchell

----- Original Message -----
From: Tom Storey [mailto:tom at snnap.net]
To:
Craig Askings [mailto:craig at askings.com.au]
Cc: Ausnog
[mailto:ausnog at lists.ausnog.net]
Sent: Fri, 22 Mar 2013 12:12:51
+1100
Subject: Re: [AusNOG] Gig BX optics


> Although isn't the head end supposed to be the "Downstream" optic, while
> the client gets the "Upstream" optic?
> 
> At least this makes it comparable to the way PON networks operate.
> 
> Reason not to use BX might be tx power/rx sensitivity. If your links are
> particularly long (> 10km), you might need a typical dual fibre working
> optic like a ZX/ER for the reach. In which case there are circulators as
> mentioned.
> 
> 
> On 22 March 2013 00:41, Craig Askings <craig at askings.com.au> wrote:
> 
> > I used them extensively at PIPE, they worked quite well. Just don't try to
> > use them in 2 gig Fibre channel switches.
> >
> > From an operational perspective, standardise on having the headend / core
> > switch using one type (D or U) and all the aggregation / CPE using the
> > other type. This takes away the guess work when another staff member goes
> > to maintain the setup.
> >
> >
> > Craig.
> >
> > On 22/03/2013, at 10:30 AM, Andrew Jones <aj at jonesy.com.au> wrote:
> >
> > > Hey all,
> > > I'm setting up some Gig-E connectivity over SMOF and am looking at using
> > BX optics, to get better efficiency out of the number of cores I have. Is
> > there any reason not to use them instead of LX? On paper, it looks like a
> > good way to go.
> > > Thanks,
> > > Andrew
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