VMware takes advantage of many of the performance features from modern network adaptors.
In this section we are going to talk about two of them and those are:
TCP checksum offload
TCP segmentation offload
To step through this recipe, you will need a running ESXi Server and a SSH Client (Putty). No other prerequisites are required.
The list of network adapter features that are enabled on your NIC can be found in the file /etc/vmware/esx.conf on your ESXi Server. Look for the lines that start with /net/vswitch
.
However, do not change the default NIC's driver settings unless you have a valid reason to do so. A good practice is to follow any configuration recommendations that are specified by the hardware vendor. Carry out the following steps in order to check the settings:
Open up your SSH Client and connect to your ESXi host.
Open the file
etc/vmware/esx.conf
Look for the line that starts with
/net/vswitch
Your output should look like...