Frank, Thanks for the post, and the compliment. We are honored to have you here. Hope you can find the time to continue to monitor the dialog on this site. I think it is informative, intellectually stimulating, and sometimes provocative. Your insights are appreciated.
"But one thing deserves mention here. And that is, I've yet to see one of these disruptive state-of-the-art technolog[ies] including long and short haul DWDM, optical switching, and optical routing network elements emerge without full dependency on SONET framing and network management constructs...
This is not meant to be argumentative, rather it is meant to be illuminative in the hope of neutralizing all of this marketecture talk about next gen whatevers outshining SONET."
I agree, and a point that I'd like to make is that the existing SONET/SDH architecture and standards are very robust, and proven, especially when it comes to Quality of Service (QoS). The real beauty of DWDM is that it takes full advantage of this architecture, while permitting wide variation in telco architecture including ring, point-to-point, and mesh, but delivering bandwidth that legacy SONET/SDH gear cannot accomplish. DWDM adequately meets the soaring bandwidth demands of today, and tomorrow, while utilizing many of the robust characteristics of SONET/SDH architecture, at a small fraction of legacy SONET/SDH hardware cost. It may be some time before alternatives, such as MPLS over everything, attain the QoS of SONET architecture.
Ten Gig Ethernet appears to be one of the hottest things coming down the road, and it will greatly enhance the network edge, (which will in turn demand more DWDM capability). From my perspective, I see this promising technology on the verge of explosive movement, just as DWDM was five years ago.
Thanks again,
Jack Hutchison
PS: I enjoy your site on SI.
The New Frank Coluccio Technology Forum
Subject 34780 |
