Re: "Is TDM going the way of dial-up?"

[joel jaeggli <joelja () bogus com>]

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,
>
>