nanog mailing list archives

Re: ONTs


From: Josh Luthman <josh () imaginenetworksllc com>
Date: Wed, 12 Jan 2022 16:15:40 -0500

I would have to imagine any QOS/traffic shaping is done in the OMCI and
hence would probably be in the GPON spec, g.984.  I would look there.

Just guessing it would hold true with XG/s/PON, NGPON, etc.

Josh Luthman
24/7 Help Desk: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373


On Wed, Jan 12, 2022 at 3:33 PM Dave Taht <dave.taht () gmail com> wrote:

On Wed, Jan 12, 2022 at 12:27 PM Josh Luthman
<josh () imaginenetworksllc com> wrote:

That's usually an OMCI control thing on the OLT (traffic shaping, qos).
Do you have a specific question in mind?

My dream, of course, is fq_codel (nowadays, sch_cake) on every
potential bottleneck link. FQ for essentially zero latency for sparse
packets, AQM for achieving
far shorter queue lengths.

I'd settle for an ONT that applied ethernet pause frames sanely so a
smarter router upstream did the right things. There's a ton of smarter
routers nowadays. Any ONT's
that use pause frames and have very small onboard buffers?

Been working on getting mikrotik up to speed on this incredibly long
thread over here; https://forum.mikrotik.com/viewtopic.php?t=179307

Josh Luthman
24/7 Help Desk: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373


On Wed, Jan 12, 2022 at 3:04 PM Dave Taht <dave.taht () gmail com> wrote:

Does anyone have any insight as to the OS and overall capabilities of
various ONT's? Traffic shaping/QoS and statistics?

On Wed, Jan 12, 2022 at 12:01 PM Shawn L via NANOG <nanog () nanog org>
wrote:

Yes.  In our scenario the ONT is basically an ethernet bridge and
provides a SIP end-point for calls.  There are models that have the router
built-into them as well, but we've chosen not to use them at this point.



The battery we install is designed to run the voice portion for ~ 8
hours (customers are offered a longer run-time battery for an additional
fee).  There's some sensor wires from the ONT to the UPS so that we know
when power is out, the battery is low or needs to be replaced, etc.  It
also tells the ONT to turn off ethernet services when the power is out to
preserve battery for the phone portion.  Though that behavior can be
changed in software.







-----Original Message-----
From: "Michael Thomas" <mike () mtcc com>
Sent: Wednesday, January 12, 2022 2:48pm
To: nanog () nanog org
Subject: Re: home router battery backup



On 1/12/22 10:54 AM, Shawn L via NANOG wrote:

In $dayjob I work for a telco that deploys fiber to the home.  If we
are providing voice services over fiber a battery backup is installed (we
maintain) that powers the customer's phone in the event of a power outage.
It does not power their router, etc.  99% of the customers do not install a
UPS for their router, etc.  We try to explain that to customers, but we
still get calls that they can't get on the Internet when their power is out.

So your voice is part of the modem which isn't a router? I assume it
uses IP for voice.

Mike



--
I tried to build a better future, a few times:
https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org

Dave Täht CEO, TekLibre, LLC



--
I tried to build a better future, a few times:
https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org

Dave Täht CEO, TekLibre, LLC


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