Several vSphere components can benefit from using a larger network frame size (MTU) than the regular size of 1500 bytes. vMotion, Storage: NFS, iSCSI and VSAN are examples that would gain some performance by increasing the frame size. In most cases, you would configure the MTU to a jumbo frame size, which is 9000.
Configuring the MTU size throughout your infrastructure can be tedious though, as you need to make sure you configure the entire chain of the network flow. If you’re not using Host Profiles for your ESXi host configuration, you have to make sure that you configure the … Read more