What is a port based VLAN

A Port-based VLAN (Port-based-vlan) is a router that can mark 4 LAN ports as a different virtual LAN, and hosts in different VLANs cannot communicate with each other.

For example, the LAN1 mouth, LAN2 mouth, LAN4 designated as VLAN1, the LAN3 designated as VLAN2, then LAN1 mouth, LAN2 Port, LAN4 the host can access each other, and the LAN3 under the host cannot access each other.

Specifically, if the LAN3 port below is a 24-port dump switch, the computer under the switch can access each other, but still cannot access the VLAN1.