[161150] in North American Network Operators' Group
Re: 10 Mbit/s problem in your network
daemon@ATHENA.MIT.EDU (Owen DeLong)
Wed Feb 27 01:01:46 2013
From: Owen DeLong <owen@delong.com>
In-Reply-To: <C12CA40900F4E0448A2D4E66DFA6A59B17F6B97D09@Demekin.FSI.local>
Date: Tue, 26 Feb 2013 21:55:52 -0800
To: Nathan Anderson <nathana@fsr.com>
Cc: 'NANOG' <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Feb 26, 2013, at 8:23 PM, Nathan Anderson <nathana@fsr.com> wrote:
> On Tuesday, February 26, 2013 7:58 PM, Owen DeLong =
<mailto:owen@delong.com> wrote:
>=20
>> In fact, many of the hotels that have solved this intelligently have
>> simply=20
>> placed DSLAMs in the phone room and run DSL to each room with
>> a relatively inexpensive (especially when you buy 500 of them at a =
time)
>> DSL modem in each room.
>=20
> ...or more likely (at least in my own probably limited experience), a =
CMTS and cable modems instead of a DSLAM and DSL modems. Probably =
because so many of these hotels have an existing digital PBX system that =
drives all the phones in the rooms which isn't going to take very kindly =
to sharing its copper with a DSLAM, and because they already have coax =
run throughout the place to drive the televisions. Easier to share the =
existing coax with a CMTS than it is to stretch a bunch of new telephone =
wire dedicated just to DSL; I mean, at that point, you might as well =
just pull some Ethernet.
>=20
I haven't encountered many CMTS-based systems in hotels where I've =
stayed (and I stay in quite a few every year).
In most cases, the digital phone system uses 1 pair of the 2-pair wiring =
and the DSL modem uses the other pair.
Owen
