Reading Time: 2 minutes One propertiers of VMware (standard) virtual switches was the number of ports per switch. A parameter (120 was the default in ESXi 5.x) that define how many virtual NIC and/or vmkernel interfaces you can connect to the virtual switch portgroups. This parameter was static and any changes require a host reboot.┬áBut starting with vSphere 5.5 (see KB 2064511) this parameter has become “elastic”.