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Author Topic: 10GBase-T vs. PCIe Switch  (Read 1783 times)
afar729
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« on: September 19, 2012, 05:20:58 AM »

I'm trying to wrap my head around whether and when 10GBase-T Ethernet and PCIe switches are substitutes or complements to one another. Ethernet and PCIe are both interconnects that can serve the same purpose for certain functions, correct? They can also go hand in hand for other functions. Please let me know if I'm on the right track here and please elaborate on what these products can do, where they compete, and where they are complementary.

Thanks!
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perkiset
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« Reply #1 on: September 19, 2012, 02:01:01 PM »

PCIe switching is ultimately faster than 10G, but more limited in scope and capability. Our Brocade fabric will integrate with PCIe switches and cards, but we've not chosen to go that way. It's (IMO) more proprietary and since we have to talk to devices that we can't put into a PCIe fabric, 10G with LAGs and multipathing are a better solution.

To me, PCIe is more in competition with InfiniBand. PCIe switching would be great for creating a computing cluster - a distributed super computer, rather than just traditional switching.
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afar729
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« Reply #2 on: September 20, 2012, 04:52:58 AM »

Thanks, man.

Could you explain what functions PCIe and 10GE are performing in the diagram on page 27 in this PDF?

http://www.plxtech.com/files/pdf/PLX_Corporate_Overview_July2012.pdf

I'm a rookie so feel free to explain what may otherwise appear obvious.

Thanks!
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