Thomas A Radogna

Title: Thomas A. Radogna: Innovator in High-Speed Cache Management

Introduction

Thomas A. Radogna is a notable inventor based in Westborough, MA (US). He has made significant contributions to the field of network technology, particularly in cache management systems. His innovative approach has led to the development of a unique patent that enhances the efficiency of data processing in network devices.

Latest Patents

Radogna holds a patent for a "High speed cache management unit for use in a bridge/router." This invention provides a method and cache management system that allows for high-speed, flexible address cache management. The unit is designed to maintain a network address cache and an age table, enabling it to search for layer 2 and layer 3 addresses from received frame headers and return address search results. The system includes an interface that allows processor manipulation of the cache and age table, supporting a 4-way set associative cache for storing network addresses. Additionally, it features multiple functions implemented in hardware for software manipulation of the associated cache, with four selectable cache operating modes. The unit can identify and select destination ports within a Load Balanced Port Group for frame forwarding, utilizing Virtual LAN identification alongside a MAC address for cache lookups. A cyclic redundancy code is employed for each address lookup, serving as an index into the cache, and if the cache thrash rate exceeds a predetermined threshold, CRC table values can be rewritten. The design includes four time-sliced cache lookup units, each with a cache lookup controller for comparing received network addresses to those retrieved from an identified cache set.

Career Highlights

Radogna's career is marked by his work at 3Com Corporation, where he has applied his expertise in network technology. His innovative contributions have played a crucial role in advancing the capabilities of network devices, particularly in the realm of cache management.

Collaborations

Throughout his career, Radogna has collaborated with notable colleagues, including Christopher P. Lawler and Shannon Q. Hill. These partnerships have fostered an environment of innovation and creativity, leading to advancements in technology.

Conclusion

Thomas A. Radogna's contributions to high-speed cache management have significantly impacted the field of network technology. His innovative patent showcases his expertise and commitment to enhancing data processing efficiency in network devices.