Solidum Systems was a fabless semiconductor company founded by Feliks Welfeld and Misha Nossik in Ottawa, Ontario Canada in 1997.
The company developed a series of rule-based network classification semiconductor devices.
IDT closed the Ottawa offices supporting the product in March 2009.
The NPF also released the Look-Aside Interface which is an important specification for Network Search Elements such as Solidum's devices.
Solidum produced a set of Traffic Classification devices called the PAX.port 1100,[2] PAX.port 1200, and PAX.port 2500[3] The classifier chips were used in Network Switches[4] and Load Balancers.