The Optical Internetworking Forum (OIF) is launching a new External Network-Network-Interface (E-NNI) Routing project aimed at formalizing routing inter-domain interfaces.The Forum's Architecture & Signaling Working Group will lead the project to define information to be shared by ASON network elements and allow paths to be calculated for a connection through multiple network domains of optical switching equipment. The new specification, titled E-NNI 1.0 Routing Implementation Agreement (IA), will be based on the provisional routing protocol...