This article describes the concept and configuration of external switch tagging (EST) mode in vSphere ESXi versions7.x and above.
VMware vSphere ESXi 8.0.x
VMware vCenter Server 8.0.x
VMware vSphere ESXi 7.0.x
VMware vCenter Server 7.0.x
For additional information on dvPortGroup configuration, see vNetwork Distributed PortGroup (dvPortGroup) configuration
To configure EST mode on ESX 7.x and above refer the doc: Sample Configuration - ESX/ESXi connecting to physical switch via VLAN access mode and External Switch VLAN Tagging (EST Mode).