Isolation, Community, and Promiscuous Ports

B.

PVLANs or Private VLANs are a type of VLAN implementation that allows for further segmentation of network traffic within a VLAN. PVLANs divide a primary VLAN into sub-VLANs, called secondary VLANs, that can either be isolated or share traffic with other secondary VLANs through a promiscuous port.

To answer the question, the type of PVLAN ports that can communicate among themselves and with the promiscuous port are Community PVLAN ports.

Community PVLAN ports are the type of PVLAN ports that share traffic with other secondary VLANs through a promiscuous port while also communicating with other community PVLAN ports. These ports belong to the same secondary VLAN but are separated from one another. In this way, community PVLANs are useful for grouping ports that need to communicate with each other but need to be isolated from other devices on the network.

On the other hand, isolated PVLAN ports are completely isolated from other ports in the same primary VLAN and can only communicate with the promiscuous port. This type of port is often used for devices that require security, such as servers or clients that contain sensitive information.

Protected PVLAN ports are similar to isolated PVLAN ports, but they can communicate with other ports on the same protected PVLAN or with the promiscuous port. These ports are used to protect against attacks that originate from within the network.

Primary PVLAN ports are the ports that belong to the primary VLAN, and they cannot communicate with any other PVLAN port.

In conclusion, the type of PVLAN ports that can communicate among themselves and with the promiscuous port are Community PVLAN ports.