Terapaths: A QoS Data Sharing Infrastructure for Petascale Computing Research

The primary goal of this project is to develop the ability to manage the network for High Energy Physics (HEP) experiments as a critical resource; much as resource scheduler/batch managers currently manage CPU resources in a multi-user environment. Multi-Protocol Label Switching (MPLS) based Quality of Service (QoS) technology although well developed has been very little used or even tested in HEP. MPLS technology will be integrated with other Local Area Network QoS technologies in the A Toroidal LHC Apparatus (ATLAS), an HEP experiment, data intensive distributed computing environment to achieve end-to-end network management capability.