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    QSFP-QSFP Cables - are they all the same?

    I need to buy 5x QSFP-QSFP passive 2m cables. I have mellanox cards and a mellanox switch. The prescribed parts are very expensive and rare in the used bin, but there are much cheaper 2m cables from NetApp that are QSFP-QSFP. So, in the infiniband world, are all QSFP cables equally compatible...
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    Help needed - Connecting IS-5022 to ConnectX2 for IPoIB - What Cable Options?

    My lab is 5x Windows Server 2016. I purchased 5x ConnectX2 and an IS-5022. I have 5x SFP+ to SFP+ Passive copper cables - 2m long. The IS-5022 has 8 QSFP ports (female). The ConnectX2 cards have SFP+ ports I believe, but documentation seems really difficult to get (these are HP Mellanox...