Hierarchically Federated Registration and Lookup within the perfSONAR Framework

A widely-distributed network monitoring system requires a scalable discovery mechanism. The "lookup service" component of the perfSONAR framework is able to manage component registration, distill resource data into tractable units, and respond to queries regarding system and performance information. A model of organizing and distributing information is presented to support both dynamic environments where services frequently change as well where different administrative configuration requirements exist. These interactions are accomplished by forming "federated hierarchies" to share information amongst the various logical overlays.