By default, UPnP port forwarding is set to Off. To configure UPnP port forwarding: Browse to My Fiber; then select Network from the Navigation menu ( ). From the Network settings pane, select Advanced; then click Ports to display the Ports tab.
Variable refrigerant flow. Variable refrigerant flow (VRF), also known as variable refrigerant volume (VRV), is an HVAC technology invented in Japan by Daikin company in 1982. Like ductless minisplits VRFs use refrigerant as the cooling and heating medium.
Each routing table is called a VRF table, and has its own table ID. You configure VRF using NCLU, then place the layer 3 interface in the VRF. You can have a maximum of 64 VRFs on a switch. When you configure a VRF, you follow a similar process to other network interfaces.