Isolated PVLAN. It is a secondary VLAN that exists inside the primary VLAN. Nodes attached to the isolated PVLAN are able to send packets to, and receive packets from, ports in the promiscuous PVLAN only.

Which component of private virtual local area network (PVLANs) is only capable to send packets to, or receive packets from, ports in the promiscuous PVLAN? - Isolated PVLAN - Promiscuous PVLAN - Community PVLAN - Primary PVLAN