RE: IP over SONET considered harmful?

And as much as an "IP over everything" bigot as I've been for the last 17 years or so, I still run into situations where what I *HAVE* to have is some kind of synchronous circuit. Wish it weren't so, but I can't just tell people "oh, you can't do that"...

So you put in a parallel SONET/TDM infrastructure for volume deployment of TDM services. There is no way that CBR over ATM is economic in the large. And if you are trying to solve a smaller TDM problem, there is lots of good gear that could be wedged into a WDM fabric to deliver smaller volumes. Either way, this use of ATM will not prolong its lifespan. The numbers just do not work. Eric Carroll Tekton Internet Associates