Comcast is hosting a network trial of a 100G optical solution from Nortel. It’s the 1st time real traffic is running over an existing network carrying live 10G and 40G links. Some 1200 engineers are testing the tech at the Internet Engineering Task Force conference in Philly, which the MSO is hosting. The trial spans from Comcast infrastructure in Philly to McLean, VA. The tech promises to enable delivery of more HD, DOCSIS 3.0, faster broadband speeds, etc, without laying new fiber. Comcast said it expects the solution to be in production in ’09. “We haven’t determined when or how to use it in our network, but as a major carrier, we need to be ahead of traffic and technology,” a Comcast rep said.