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ASIC alliance pairs Fujitsu, Greenfield

Posted: 20 May 2004 ?? ?Print Version ?Bookmark and Share

Keywords:fujitsu microelectronics america? asic? switching product? packetry? greenfield networks?

Fujitsu Microelectronics America Inc. will provide ASICs for the Packetry switching products of Greenfield Networks Inc. Fujitsu announced the contract at last week's Networld+Interop, where it also rolled out XFP transceivers from the Fujitsu-Sumitomo joint venture, Eudyna Devices USA Inc.

Last month, Greenfield unveiled its first Ethernet switching family to support IPv6 and advanced multicast/unicast routing for IPv6. Fujitsu is providing three ASICs for the Greenfield line: a device that melds switching with a large buffer memory, another that supports RGMII and SPI-4.2 interfaces to the system and a device for physical-layer 10Gb interfaces.

The Greenfield parts combine the cores in the G525 packet engine, G750 shared memory fabric and G120 intelligent multiplexer.

At N+I, Fujitsu showed samples of its own 10Gb Ethernet switch-the MB87Q3070-which it unveiled last month. But the Greenfield devices are Layer 3 switches intended for the network edge, while the 3070 is a complex enterprise device mainly for Layer 2 tasks.

Fujitsu is working with two affiliates on physical-layer devices to support Ethernet switches at 10Gbps. For copper medium-distance connections, Fujitsu Components of America Inc. is introducing two modules that support CX4. The X2 x-mGC complies with the X2 multisource agreement to transmit 10Gb signals over 20m of Infiniband copper cable.

The X2 device also can be used with VSR parallel optics when it is combined with a second optical module from Fujitsu Components. In that device, a four-channel optical transceiver, an internal media converter extends a CX4 interface to 300m at 2.5Gbps.

For longer-reach pure optical interconnects, Fujitsu is relying on the Eudyna venture to design its first XFP optical transceiver products. XFP is a metro-area transmission standard that can carry 10-Gbit Sonet or Ethernet signals 25 miles at 1,550nm frequencies.

- Loring Wirbel

EE Times





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