To enable Jumbo Frames for independent hardware iSCSI adapters in the vSphere Web Client, change the default value of the maximum transmission units (MTU) parameter.

Use the Advanced Options settings to change the MTU parameter for the iSCSI HBA.


Browse to the host in the vSphere Web Client navigator.


Click the Manage tab, and click Storage.


Click Storage Adapters, and select the independent hardware iSCSI adapter from the list of adapters.


Under Adapter Details, click the Advanced Options tab and click Edit.


Change the value of the MTU parameter.

ESXi supports the MTU size up to 9000 Bytes.