Fujitsu has taken the wraps of its most powerful 20-port, 10Gbps Ethernet switch integrated circuit (IC) chip. The firm's MB8AA3020 component has been designed for data centre and carrier network equipment and supports virtualisation, backward congestion management notification (BCN) and priority PAUSE features.
The 20-port 10GbE switch chip delivers 400+Gbps, non-blocking, aggregate switching bandwidth through 3Mbytes of proprietary, multi-stream shared buffer memory, with on-chip 10Gbps serial SerDes.
An on-chip micro-engine drives the management interface. The IC also supports the CX4 interface and adaptive equalisation with on-chip SerDes.
"With the introduction of 10Gbps connectivity for blade servers, the increasing need for high-speed aggregation in the enterprise core, and the proliferation of Ethernet into service provider networks, 10Gbps Ethernet is now becoming an important market. It will account for a significant share of Ethernet switching equipment revenues by 2010," said Peter Middleton, principal research analyst with Gartner.
Jag Bolaria, senior analyst with the Linley Group agreed: "The bladed equipment market's sharp turn toward ASSPs to develop standards-based blade server and ATCA architectures in the past two years translates into solid demand for a chip with these features."
Fujitsu's switch chip embeds 20 high-bandwidth, full-duplex 10Gbps ports in a single, integrated 1,156-pin FCBGA package. The firm claims its 10Gbps serial ports provide two advantages. First, they eliminate the need for expensive off-chip XAUI to XFI SerDes, allowing direct connections to optical XFP modules on any port and helping to significantly reduce cost, latency, power consumption, and board space. Secondly, the ports reduce the routing overhead inherent in running 4 x 3.125G lanes.
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