Which secondary Private VLAN (PVLAN) type can communicate and send packets to an Isolated PVLAN?

Community ports can communicate with other ports in the same Community PVLAN and with Promiscuous ports, but are blocked from sending packets to or receiving packets from Isolated ports.

Isolated ports cannot communicate with other Isolated ports; each Isolated port is restricted exclusively to Promiscuous ports, making same-type communication impossible by design.

Promiscuous ports can communicate with all secondary PVLAN types within the primary PVLAN, including both Isolated and Community ports. Isolated ports are by design restricted to communicate only with Promiscuous ports - they cannot exchange traffic with any other Isolated or Community port. Promiscuous ports are typically assigned to uplink interfaces such as routers or firewalls that must reach all hosts in the PVLAN.

Primary PVLAN is the outer enclosing VLAN that contains the secondary PVLANs - it is not itself a secondary PVLAN type assignable to ports, and the question asks about secondary PVLAN types.