A connection type
Second, the difference
Vmkernel Network Adapter
Mainly deal with the following ESXI traffic services, such as: vSphere vMotion, iSCSI, NFS, FCoE, Fault Tolerance, vSAN and host management.
Note: This type of connection, must be bound to a fixed IP address
Standard Switches virtual machine port group
Mainly used: traffic on the virtual machine process standard switch, a virtual machine is typically used for processing traffic or data traffic of each service system.
Note: This type of connection, do not need to bind any IP address, network administrator, usually the physical post card set to trunk mode, all virtual machines in the virtual machine hides pay, you can use a different VLAN.