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I was thinking the same thing. They're a few years out of support,
but the Zhone 42xx IP DSLAM provides a 1Gbps ethernet uplink and 24
ADSL2+ DSL user ports per 1U chassis (stackable to achieve 192 ports
total). Wish they were available in AC for non-telco use.<br>
<a class="moz-txt-link-freetext" href="http://support.zhone.com/support/manuals/docs/42/4200-A2-GN21-40.pdf">http://support.zhone.com/support/manuals/docs/42/4200-A2-GN21-40.pdf</a><br>
<br>
You could pair these with a pfSense appliance (or an x86 PC running
the free software) to provide DHCP, DNS, etc - or use the built in
pfSense captive portal to provide additional authentication and
accounting per user. pfSense can provide NAT and FW if needed, or
these features can be disabled to use globally routable IP4/IP6
addresses.<br>
<br>
As far as support goes, backup your pfsense and DLSAM configs when
you finish the project and the subscriber accounts and DSL modems
could be maintained by a local admin through the pfSense web
interface with no need to touch the DSLAMs or anything CLI.<br>
<br>
--Blake<br>
<br>
<div class="moz-cite-prefix">Shawn L via NANOG wrote on 1/4/2019
8:59 AM:<br>
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<p style="margin:0;padding:0;font-family: arial; font-size:
10pt; overflow-wrap: break-word;">Might want to look for old
Zhone ip bitstorm dslams. There should be a bunch on the used
market. They do all of the ATM conversions internally so you
just need to feed them with ethernet.</p>
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-----Original Message-----<br>
From: "Nick Edwards" <a class="moz-txt-link-rfc2396E" href="mailto:nick.z.edwards@gmail.com"><nick.z.edwards@gmail.com></a><br>
Sent: Friday, January 4, 2019 9:36am<br>
To: "Brandon Martin" <a class="moz-txt-link-rfc2396E" href="mailto:lists.nanog@monmotha.net"><lists.nanog@monmotha.net></a><br>
Cc: "NANOG" <a class="moz-txt-link-rfc2396E" href="mailto:nanog@nanog.org"><nanog@nanog.org></a><br>
Subject: Re: IP Dslams<br>
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<div>They don't have a large budget and although I'm yet to
get prices on adtran's (understandable, holidays 'n all) I
doubt it will fit within their budget, it's looking more
like getting a few planet dslams and configuring a linux
box as the bng, been 10 years since I've had to do that
kind of setup, memories hazy, but I know it worked, and
well, so thanks to all for suggestions but the adtrans and
nokias are not for those on shoe string budgets, which
wouldnt even allow me to include an asr1k for the bng, and
although it would allow for, I'd rather not grab an ebay
7200/7300 :)</div>
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<div dir="ltr">On Wed, Jan 2, 2019 at 10:52 PM Brandon
Martin <<a href="mailto:lists.nanog@monmotha.net"
moz-do-not-send="true">lists.nanog@monmotha.net</a>>
wrote:</div>
<blockquote class="gmail_quote" style="margin: 0px 0px 0px
0.8ex; border-left: 1px solid #cccccc; padding-left: 1ex;">On
1/2/19 6:47 AM, Nick Edwards wrote:<br>
> There are 260 villas, and no coax.<br>
<br>
Is there a logical way to distribute the termination? You
might be able <br>
to get better performance (not that you perhaps care, in
this case) at <br>
minimal additional cost if you can do building-local
termination of each <br>
customer circuit and then backhaul on e.g. bonded VDSL2 or
G.FAST over <br>
shorter distances (perhaps hopping building to building).<br>
<br>
I'm assuming there's no data grade copper or fiber if
there's no coax. <br>
Obviously if you've got those, distributed termination
makes even more <br>
sense.<br>
<br>
If you do want a centralized solution, an Adtran TA5006
(the small <br>
chassis) with 6x 48 port VDSL2 combo modules (with or
without vectoring, <br>
depending on your needs) would do the job (though it fills
the chassis <br>
and doesn't allow for expansion, so the full-size TA5000
may be <br>
desirable). I've played (and am playing with) the same
system but with <br>
GPON termination and have been happy with it so far.<br>
-- <br>
Brandon Martin</blockquote>
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