Which DAC cable will work between a CX 10000 QSFP28 100Gbs ports and the
HPE InfiniBand EDR/Ethernet 100Gb 2-port 841QSFP28 Adapter part# 872726-B21(Short, ~2 - 3 meters)
A note says that Aruba DACs are supported with Aruba ToR infrastructure only (and I read that note as it says "with Aruba CX 83xx and Aruba CX 10000 series")...indeed looking at the Aruba AOS-S and AOS-CX Transceiver Guide Edition 11 (December 2021) supported passive 100G DACs by the Aruba CX 10000 are respectively:R0Z25A Aruba 100G QSFP28 to QSFP28 1m Direct Attach Copper CableJL307A 100G QSFP28 to QSFP28 3m Direct Attach Copper CableR0Z26A 100G QSFP28 to QSFP28 5m Direct Attach Copper CableAnd there is the statement that the Aruba CX 10000 48Y6C model (R8S96A displayed by CLI) supports exactly JL307A and R0Z25A/R0Z26A (these two since AOS-CX 10.09.0010).Long story short to say only that I suspect that using either JL307A or R0Z25A/R0Z26A would work with your Aruba CX 10000...at least looking at the switch side.On the other hand, specifically looking at supported options of your adapter it looks like that supported passive DACs are only:834973-B21 HPE 0.5m InfiniBand EDR QSFP Copper Cable834973-B22 HPE 1m InfiniBand EDR QSFP Copper Cable834973-B23 HPE 1.5m InfiniBand EDR QSFP Copper Cable834973-B24 HPE 2m InfiniBand EDR QSFP Copper Cable834973-B25 HPE 3m InfiniBand EDR QSFP Copper Cable
Again if there could be an issue, if any, it could be eventually fall on the Adapter side especially if your approach requires to use Aruba supported DACs on the Aruba CX 10000 (which is a good thing to do) as the very first and essential requirement...
Thank you so much, I will investigate this carefully
Thank you for pointing out another card option,
I do not need infiniBand,
It stands between dac cables and a number of transceivers
HPE 100Gb QSFP28 Bidirectional XCVR)
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