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Dune rolls traffic management chips

Posted: 10 Jun 2004 ?? ?Print Version ?Bookmark and Share

Keywords:dune networks? line card? terachip? erlang? fap20v?

Dune Networks expanded its line card offerings with the release of two devices that combine traffic management and a serial interface for linking up line cards to a centralized switch fabric card.

Founded in October of 2000, Sunnyvale, California-based Dune has joined Terachip, Erlang and other companies in delivering an off-the-shelf backplane solution for networking designers that combines a switch fabric IC sitting on a centralized card with an interface chip that gets placed on line card designs. Now, Dune is hoping to set itself apart from competitors by combining the functionality of an external traffic manager with its interface chip to form a fabric access processor (FAP).

By combining the two capabilities, Mikhal Kahan, VP of Marketing, said that Dune is providing the ability for traffic management capabilities to be distributed across line cards in a system design. And by offering this distributed capability, "we can provide end-to-end weight and rate point-to-point guarantees," Kahan added.

Dune is initially offering two flavors of its fabric access processor. The FAP20V is a 20Gb device that sports two SPI 4.2 interfaces for linking up with network processors while the FAP10V is a 10Gb device that is equipped with a single SPI 4.2 link for linking up with NPUs.

In their traffic management section, both chips deliver 8K input queues, 16K output queues and a scheduler supporting 64 channels. Both chips also provide DDR channels for linking up with external memory, an optional ZBT SRAM interface and serial interfaces for linking to a switch fabric device across a backplane.

The FAP10V and FAP20V devices consume <12W power. Both chips are currently sampling.

- Robert Keenan

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