Activate TSO support on the network adapter of a Linux virtual machine so that the guest operating system redirects TCP packets that need segmentation to the VMkernel.

Prerequisites

  • Verify that ESXi supports the Linux guest operating system.

    See the VMware Compatibility Guide documentation.

  • Verify that the network adapter on the Linux virtual machine is VMXNET2 or VMXNET3.

Procedure

  • In a terminal window on the Linux guest operating system, to activate or deactivate TSO, run the ethtool command with the -K and tso options.
    • To activate TSO, run the following command:
      ethtool -K ethY tso on
    • To deactivate TSO, run the following command:
      ethtool -K ethY tso off

    where Y in ethY is the sequence number of the NIC in the virtual machine.