Re: Optical Crossconnects and IP

| I agree that a more dynamic optical infrastructure allows an IP network | to be established faster and better (in terms of flexibility), but I | disagree with the point of view that expects routers to dynamically | establish, modify and tear-down circuits to other routers on | demand. The key words in this sentence are "on demand". I believe that we've demonstrated that traffic engineering is a viable and beneficial capability in large scale IP networks. I would agree that anyone attempting to perform traffic engineering with a very small time constant would be pushing the technology past what is beneficial today. Tony