I recently updated my vmware hosts from 6.5 U1 to U3. The hosts are Dell R620 with Intel i350-t4 NICs. For the most part all is well, but I have two hosts with frequent flapping (link down/up). Anyone else come across this?
I should mention one host is in an offsite DC so I haven’t changed the patch cable. The other host however I’ve changed the patch cable, patch panel location, switch port…
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I’ve had a similar problem before. Did you use dell custom iso when upgrading ESXi?
I solved a similar problem with the firmware update. Can you check the driver and firmware versions?Blog: https://www.tayfundeger.com
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igbn 1.4.6-1OEM.600.0.0.2768847 INT VMwareCertified 2019-09-16 ixgben 1.7.10-1OEM.600.0.0.2768847 INT VMwareCertified 2019-09-16 net-igb 5.3.3-1OEM.600.0.0.2494585 INT VMwareCertified 2019-09-16 net-ixgbe 4.5.3-1OEM.600.0.0.2494585 INT VMwareCertified 2019-09-16
Then I’m seeing versions 17.x and 15.x for firmware on the two affected NICs. Current version is 24.2.