I currently have two 2348TQ's connected in a vPC to two 7009's in a vPC running 7.2(2)D1(2) via four F312FQ-25's (two connections per 7009). I am running into an issue with some Dell 720's with Intel 520X NIC's connecting to the 2348's. We have installed the latest drivers for the NIC's on the servers. Once they are connected they will ping three times and drop off. If I wait about 30 minutes they will ping 3 times and drop off again. I have connected a laptop to the 2348's and verified pings to the laptop with no issues. The Dell servers have ESXI 6.7 installed.
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