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

Rick Ernst nanog at shreddedmail.com
Fri Mar 26 15:15:36 UTC 2010


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.

Thoughts?

Thanks,



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