ITC/USA 2006 Conference Proceedings / The Forty-Second Annual International Telemetering Conference and Technical Exhibition / October 23-26, 2006 / Town and Country Resort & Convention Center, San Diego, California / As telemetry systems migrate toward network-centric distribution architectures, more efficient mechanisms are needed to distribute the telemetry data from the source to various users of the data. The most widely used network protocol for reliable delivery of telemetry data over IP networks is TCP/IP. With TCP/IP, the bandwidth required to distribute telemetry data increases linearly according to the number of point-to-point connections. An alternate approach to reliably deliver telemetry data to multiple end users in a network efficient manner is the Pragmatic General Multicast (PGM) protocol.