The Current Landscape of Switch Fabrics and RapidIO
The increasing use of high-bandwidth smart peripherals, as well as the advantages of direct communications between various system devices and elements, has brought bus-based interconnect technologies under further scrutiny.
To combat the inadequacies of traditional interconnect structures that have risen from the modern requirements of embedded system designers, several switch fabric technologies have come into playeach vying for its own foothold in the market.
Although there are over 60 switch fabrics currently documented, with several more anticipated to show up on the scene, there are only a few that utilize an open architecture platform, thereby making them available to the broadest number of users and increasing their chances of utilization in the marketplace.
Here, we'll examine some of the most widely adopted open architecture fabrics to provide an overview and comparison of each, then we'll focus on some recent developments to RapidIO, one of the leading open architecture switch fabrics.