Myself and colleagues have been discussing optimal configuration for ESXi NICs using 10Gbe.
The general consensus was now that we’re moving away from splitting out all traffic onto a crazy amount of NICs like in the 1Gbe days and converging all traffic over 2 or 4 10Gbe NICs. But some people also said they would always dedicate NICs to iSCSI.
The issue that was raised was around iSCSI and Jumbo Frames. Jumbo Frames is set at vSwitch level I believe. So if we’re creating a single vSwitch and adding all our uplink ports to that vSwitch. Will setting the MTU on the vSwitch to 9000 affect the other traffic for VM networking, Mgmt etc?
Also, is there any guidance or official ‘best practices’ on best vSwitch/NIC configurations? I know it’s heavily defined by the requirements. But i’ve not really found much detail other than blogs.
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