nanog mailing list archives
Re: ADSL Line Extenders
From: Josh Reynolds <josh () spitwspots com>
Date: Thu, 30 Apr 2015 18:41:04 -0800
1Gbps Aggregate.AF24/AF24HD are ~ 750Mbps/750Mbps at max modulation. That is a PtP system though, not PtMP.
If you need to carry ADSL traffic, you most likely need a "timing-enabled" (can't remember the RFC) radio. RadWin and Trango should fit the bill, likely others.
Honestly though, I'd ditch the ADSL if possible. Depending on the terrain, wireless may work. It's not magic, and won't shoot through acres and acres of trees, but if you have a good line-of-site (60% clear 1st Fresnel zone), those are prime subscribers for 5GHz Ubiquiti Rockets + Sectors and ~$100 CPE devices. Don't put more than 25 or 30 subscribers per sector, and you can easily hit 10Mbps per sub with a modest oversubscription ratio. If you went for the RM5-AC line in PtMP, you might be able to do 40Mbps per sub.
Josh Reynolds CIO, SPITwSPOTS www.spitwspots.com On 04/30/2015 06:32 PM, Rafael Possamai wrote:
Yes, you are correct, P2MP is what I meant to say. I'd also suggest Ubiquiti radios, some of their models being capable of doing 1gbps+. On Thu, Apr 30, 2015 at 7:59 AM, Shimon Hochbaum < shimon.hochbaum () teliswitch com> wrote:I second wholeheartedly the idea of wireless for this application, except that Rafael probably meant point to multipoint solutions: Trango https://www.trangosys.com/altum-ac or Waveip http://www.waveip.com/products/overview/ are 2 good options. Line extenders supporting ADSL2+ won't do much good: the 2 and the + denote improvements in the short range, less than 5000', probably not relevant in your case. If wired is your preferred option, you might want to consider HDSL based products, which are meant to drive 1.5M symmetric over long distances, power fed from the 2 sides for simplicity, with ability to go higher when pairs are bundled. Adtran should be the 1st place to look at. Good luck, Shimon-----Original Message----- From: Rafael Possamai [mailto:rafael () gav ufsc br] Sent: Wednesday, April 29, 2015 17:37 To: Jean-Francois Mezei Cc: nanog () nanog org Subject: Re: ADSL Line Extenders Semi-related question: in instances like this, wouldn't a point-to-pointlinkprovide larger throughput and be less expensive? Unless you are talkingaboutseveral subscribers that are already installed and operating. Depending on the situation, it might make sense to set a few sectorial antennas at a high-point and link everyone with small inexpensive CPE antennas. Just a quick thought. Good luck, Rafael On Tue, Apr 28, 2015 at 4:24 PM, Jean-Francois Mezei < jfmezei_nanog () vaxination ca> wrote:A friend on a rural DSl association asked about ADSL line extenders. A search on Google yields many products dating back to the days of ADSL-1 advertising 1mbps profiles, but a few seem more recent and support ADSL2+ (not sure if any support VDSL2). Are these thing out of date and no longer deployed ? Were they ever effective, or just vapourware that didn't really improve things ? Do any Telcos still deploy them ? Anyone know of deployments inCanada ?I just need a reality check on those devices. jf
Current thread:
- RE: ADSL Line Extenders Shimon Hochbaum (Apr 30)
- Re: ADSL Line Extenders Rafael Possamai (Apr 30)
- Re: ADSL Line Extenders Josh Reynolds (Apr 30)
- Re: ADSL Line Extenders Jean-Francois Mezei (May 01)
- Re: ADSL Line Extenders Josh Reynolds (May 02)
- Re: ADSL Line Extenders Josh Reynolds (Apr 30)
- Re: ADSL Line Extenders Rafael Possamai (Apr 30)