Question
AOC-S25G-i2S  2x 25GbE SFP28,LP network card.  Customer had a 25G DAC cable between Ciena 5171 switch and the Dell 25G card and it would sync and green up. 
The Dell had this model: “QLogic Corp. QLogic FastLinQ QL41xxx 1/10/25 GbE Ethernet Adapter”.  When they moved cable to the Supermicro it will not sync and green up. 
They tried from one port on server to another port on the server and nothing.  Hooking up a 10G DAC cable and it works but not 25G.
Do you have any recommendations on what cable to use with this Intel NIC?
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Answer
You may please go below link to download AOC-S25G-i2S  manual – Page 1-5 Optional Parts List shows cables part numbers for this card.
"https://www.supermicro.com/manuals/other/AOC-S25G-i2S.pdf"
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FAQ ID:
32745
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Date Posted:
09/11/20
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