Will QDR InfiniBand Leap Ahead of 40 Gig Ethernet?

David Gross from Freesky writes on the battle for high-speed network supremacy:

"What’s been impressive about QDR InfiniBand is not the fact that it’s here, but its cost, under $500 a port, or less than a 10GBASE-SR transceiver module. OC-768 data ports still cost the same as they did seven years ago, about $600,000, and will need a lot than the 100+ ports AT&T (T) has purchased for its MPLS core in order to come down in price. Moreover, OC-192 Packet-over-SONET ports still go for well over $100,000, even with intermediate range 1310nm optics."

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About Rich
FlexRex began his life as a cartoon character I created a Sun Microsystems. As the world's first "fictional blogger," he appeared in numerous parody films that made fun of the whole work-from-home thing. Somewhere along the line, the Sun IT department adopted FlexRex as their spokesman in a half-dozen security awareness films for employees. So when I left Sun recently, I started FlexRex Communications, a Marketing company in Portland, Oregon.

One Response to Will QDR InfiniBand Leap Ahead of 40 Gig Ethernet?

  1. Mark says:

    I believe the price per port assumes empty QFSP slots. Granted, the copper QSFP cables are inexpensive, but support very limited distances for QDR speeds (5m is all I see today, with a likely eventual max of 7m), which means optical solutions will be required for distances greater than 7m.
    Optical modules for InfiniBand are expensive just like optical modules for Ethernet are expensive. The need to bring optical costs down is what drove the idea of integrated optical solutions like Intel’s Connects cables.
    The promise of Intel Connects DDR optical cables never panned out, because it took years to mature (and ultimately was sold to EMCORE). Let’s hope the EMCORE Connects QDR cables mature much more quickly.
    Also, let’s hope the InfiniBand and other use cases for QSFP meke it a mature phy for 40 Gbps Ethernet, as 40GE should be ideal for 10GE switch uplinks.

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