[124190] in North American Network Operators' Group
Re: "Is TDM going the way of dial-up?"
daemon@ATHENA.MIT.EDU (joel jaeggli)
Fri Mar 26 11:44:39 2010
Date: Fri, 26 Mar 2010 08:44:04 -0700
From: joel jaeggli <joelja@bogus.com>
To: nanog@nanog.org
In-Reply-To: <d066472f1003260815u10dc253eue351b91603689f0d@mail.gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 3/26/2010 8:15 AM, Rick Ernst wrote:
> I've noticed over the last 3 years or so that TDM, specifically T-1, access
> and transport has been in a steady decline. Customers are moving to FTTH
> and cable, or going WiMAX and Metro-Ethernet. Ethernet seems to have taken
> 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.
>
> I'm wondering if others are seeing the same behavior, if it's
> market-dependant, or if I'm just imagining things. I'm working on building
> new infrastructure and my current thoughts are to minimize my TDM
> footprint. It would be useful to get a better feel if this is an overall
> trend or something local.
>
Why I think it comes down to is do you want to use frame-relay, atm, sdh
and ethernet when you can just use ethernet?
lan-phy ethernet has economies of scale that result in lower cost along
virtually every dimension relative to the alternatives.
> Thoughts?
>
> Thanks,
>
>
