[TriLUG] at&t fiber

Wed Sep 6 12:46:49 EDT 2017

Speaking of the NVG599...

https://www.schneier.com/blog/archives/2017/09/security_vulner_9.html

https://www.nomotion.net/blog/sharknatto/

On Wed, Sep 6, 2017 at 12:34 PM, Wes Garrison via TriLUG <trilug at trilug.org>
wrote:

> They install an "ONT" (Optical Network Terminal) on the outside of the
> house that hands it off to a CAT 5e Ethernet straight to your "modem".
>
> Unfortunately the NVG599 router AT&T provides does not support true
> passthrough, only a sort of hybrid DMZ mode, so using your own router
> behind it is not as seamless as it could be.
> (google for NVG599 passthrough and you'll see what I mean; I think we've
> discussed that on this list before)
>
> It authenticates with 802.1x so you really can't replace it, even though
> it's standard Ethernet.  Yay for taking standards and making them not
> standard!
>
> AT&T and Google both use PON technology
> <https://en.wikipedia.org/wiki/Passive_optical_network> to do this, which
> means they literally split the fiber.
>
> The downstream bandwidth uses WDM (Wave Division Multiplexing), so everyone
> get's their own wavelength and essentially gets full "switched" bandwidth
> back to the OLT (Optical Light Terminal), where it splits.
>
> AT&T uses TDM (Time Division Multiplexing) for the upstream bandwidth,
> though, so you're sharing upstream with everyone on your split; usually
> about 32 houses, I think.  PONs can be split up to 128 ways, but I think
> AT&T only goes up to 32 ways - maybe 16, I can't recall properly.
>
> Google uses WDM for upstream too, so you effectively get all of your
> bandwidth in both directions.
>
> I'm not sure Google Fiber actually exists, though.
>
> -Wes
>
> _________________________________
> Wesley S. Garrison
> Network Engineer
> Xitech Communications, Inc.
> phone:  (919) 260-0803
> fax:       (919) 932-5051
> __________________________________
> "Lead us not into temptation, but deliver us from email."
>
> On Wed, Sep 6, 2017 at 12:18 PM, karl flores via TriLUG <trilug at trilug.org
> >
> wrote:
>
> > Q. Did you/they have to rewire house to get fiber to your devices?
> >
> > On Wed, Sep 6, 2017 at 12:06 PM, Ron Kelley via TriLUG <
> trilug at trilug.org>
> > wrote:
> >
> > > Have AT&T fiber for about 1yr now (in Apex) - full GigE connection
> > ($75/mo
> > > I think)
> > >
> > > Just ran Speed test again.  Still getting 720Mbps download and 915Mbps
> > > upload.  Really like the service.
> > >
> > >
> > > -Ron
> > >
> > >
> > >
> > >
> > > On Sep 6, 2017, at 11:50 AM, Hilmar Lapp via TriLUG <trilug at trilug.org
> >
> > > wrote:
> > >
> > > I may have missed earlier reports about the experience from folks who
> > > adopted AT&T Fiber. They’ve laid the fiber in our neighborhood a year
> ago
> > > and of course now they aggressively try to sell it to everyone.
> > >
> > > I can’t say their pricing is aggressive – we’re not cable TV customers
> so
> > > their bundles including TV don’t appeal to us, and internet-only is
> about
> > > the same as with TWC/Spectrum 300Mbps – but they claim that their
> > bandwidth
> > > is way more consistent high at >300 Mbps than TWC/Spectrum cable. Even
> if
> > > that were to be true right now, it seems like that could well be
> > explained
> > > by the network not being as crowded yet as far from everyone has signed
> > on
> > > yet.
> > >
> > > Any experience of folks out there with AT&T Fiber? If bandwidth was
> > indeed
> > > great and highly consistent at first, did it stay that way or
> > deteriorated
> > > as more people in the neighborhood signed on?
> > >
> > >  -hilmar
> > > --
> > > Hilmar Lapp -:- lappland.io
> > >
> > >
> > >
> > > --
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> >
> >
> >
> > --
> > Karl Flores
> > IT Specialist
> > Directl: 619-796-1329
> > Fax:  858-605-4265
> >
> >
> > "There are those who look at opportunities and contemplate limitations.
> > There are those who seek opportunities and discover limitations. And
> there
> > are those who find opportunities and challenge their own limitations."
> >
> >
> >
> > "My children are footprints that prove I existed"
> >
> >  "My life is based on a true story. The characters, incidents, and
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> >
> > "What I now know is that I never knew that I knew what I know"
> >
> >  "Finish Happy"
> > --
> > This message was sent to: Wes <wes at xitechusa.com>
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