IETF OKs PGMIETF OKs PGM

LOS ALTOS, Calif. -- Talarian(R) Corporation (Nasdaq:TALR), a leading provider of software infrastructure solutions that deliver data and content in real time, today announced the Internet Engineering Task Force has granted experimental standard status to the Pragmatic General Multicast (PGM) protocol. PGM is the first and only multicast protocol to earn this designation. Experimental standard-status will help speed time-to-market and deployment for applications requiring one-to-many, reliable, real-time distribution. PGM is a reliable multicast transport protocol for applications that require duplicate-free multicast data delivery from multiple sources to multiple receivers. The PGM protocol (developed by Cisco, Nortel and Talarian) guarantees that a receiver in the group either receives all data packets or is able to detect unrecoverable loss. PGM is specifically intended as a solution for multicast applications with basic reliability requirements. Its central design goals are reliability and simplicity of operation with regard for scalability and network efficiency. "Talarian's SmartPGM product is the only commercially available host-side implementation of PGM," said Tom Laffey, co-founder and chief technology officer for Talarian. "As companies continue to work more and more in the `real-time' world, we believe PGM will become even more important for large-scale data distribution. SmartPGM is revolutionary in the multicast world because of its TCP-style information delivery, practically and viably combining reliable multicast with existing networks." Talarian Corp.Internet Engineering Task Force (IETF)