[124197] in North American Network Operators' Group
Re: "Is TDM going the way of dial-up?"
daemon@ATHENA.MIT.EDU (Jared Mauch)
Fri Mar 26 12:10:40 2010
From: Jared Mauch <jared@puck.nether.net>
In-Reply-To: <63AF18E6CB3D3A47A965A11168C9736F01ED810F@MAIL3P.dvuadmin.net>
Date: Fri, 26 Mar 2010 12:09:56 -0400
To: "Olsen, Jason" <jolsen@devry.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Mar 26, 2010, at 11:44 AM, Olsen, Jason wrote:
>> From: Rick Ernst [mailto:nanog@shreddedmail.com]
>=20
>=20
>> an even bigger bite out of DS-3. The bigger pipes seem to favor
>> ethernet. A recent upgrade from OC-3 to GigE transport actually saved
> us a large
>> chunk of money.
>=20
> We recently had exactly the opposite experience, unfortunately. =
During
> relocation of our datacenter we asked our MPLS WAN provider to provide
> GigE transport rather than the multiple OC-3s we were using today. To =
us
> it seemed like it would be cheaper - GigE interfaces, even WAN-PHY =
rated
> ones, were orders of magnitude cheaper than SONET. Unfortunately the
> provider came back with absolutely outrageous costs for the port,
> claiming they had to do non-standard agreements with incumbents to
> provide the lines to us (despite the amount of circuits already in the
> site).
>=20
> This may be more a function of that particular provider, however.
What I've been hearing rumors of is ---
unregulated services (eg: gigaman, opteman) typically have a better =
price-point if you are going with the carrier of choice.
TDM services (DSn/OCn) where there is a standard interconnection method =
tend to have higher costs than ethernet services, but are available when =
you have multiple carriers involved. (eg: VZ/MCI/XO/QWEST to SBC/ATT) =
territory.
I see this as a two-fold issue, one, the carriers (ATT) are trying to =
provide an incentive for shifting away from the TDM based services. At =
the same time, it's more difficult to deliver service if you're not =
building to the market.
I would take into account the filing that ATT gave to the FCC recently =
asking to set a sunset date for their POTS (read: TDM) network elements. =
This will allow them to leave the markets that are unprofitable, while =
delivering the unregulated (ethernet/IP) services where it currently is =
profitable.
- Jared=
