Manage Hardware LRO for All VMXNET3 Adapters on an ESXi Host

Activate the hardware capabilities of host physical adapters to aggregate incoming TCP packets for VXMNET3 VM adapters by using the LRO technology instead of consuming resources for assembling in the guest operating system.

Procedure

1. In the vSphere Client, navigate to the host.
2. On the Configure tab, expand System.
3. Click Advanced System Settings.
4. Edit the value of the Net.Vmxnet3HwLRO parameter.
   • To activate hardware LRO, set Net.Vmxnet3HwLRO to 1.
   • To deactivate hardware LRO, set Net.Vmxnet3HwLRO to 0.
5. Click OK to apply the changes.