An international field demonstration on lambda-based Internet eXchange (IX) was conducted between China and Japan for the first time, by using Generalized Multiple Protocol Label Switching (GMPLS)-controlled Photonic Cross-connects (PXCs) and Layer 2 switches (L2SWs). The IX operation could be demonstrated to provide the resilient lambda interconnection as well as L2 interconnection to the Internet Service Providers (ISPs). Stable lambda LSP establishment, dynamic bandwidth management and fast restoration were successfully achieved in the field trial. Traffic transmission of video stream between two ISPs via the IX was also verified.
A distributed lambda-IX consisting of generalized multi-protocol label switching (GMPLS)-controlled photonic cross connects (PXCs) and GMPLS-controlled Layer-2 switches (L2SWs) is proposed, which enhances the conventional L2-IX features by interacting between GMPLS control plane and L2SW functionalities. The proposed IX enables lambda based connections to be automatically created via PXCs between L2SWs in the IX accommodating an Internet service provider's (ISP's) border routers, which indicates that the high reliable interconnection with low latency can be provided for ISPs, thanks to the PXC technologies and GMPLS functionalities. Furthermore, by interacting with L2SW
functionalities such as traffic monitoring and link aggregation, the proposed IX can provide the enhanced functionalities of a dynamic bandwidth modification according to traffic on a real time basis and a fast fault restoration of less than 50 milliseconds.