Customer Onboarding with VMware NSX L2VPN Service : Management Components and Feature Design : 5.1 vSphere Component Design : 5.1.3 Virtual Switches
   
5.1.3 Virtual Switches
Virtual switches provide L2VPN connectivity for VMs and NSX Edge appliances. For most VMware NSX L2VPN solutions, the vSphere Distributed Switch is used. However, it is possible to use the standard virtual switch for the configuration of the trunks ports that are used by the NSX Edge appliance. VMware recommends that the vSphere Distributed Switch be used for trunk port configurations because there is less management overhead during configuration of the L2VPN services at both sites. See Section 5.3.4, Trunk Port for more details about the use of trunk ports with VMware NSX L2VPN services.