PVLAN - Private VLAN
What is PVLAN?
PVLAN (Private VLAN) is a VLAN technology that partitions a VLAN into smaller isolated sub-VLANs to provide layer 2 isolation between ports within the same VLAN.
Why is PVLAN useful?
PVLAN enhances security by preventing direct communication between devices on the same VLAN while still allowing shared access to common resources like gateways.
How it works?
PVLAN divides a VLAN into primary and secondary VLANs: - Promiscuous ports communicate with all other ports. - Isolated ports cannot communicate with any other ports except promiscuous. - Community ports can communicate with other ports within the same community VLAN and promiscuous ports.
Where is PVLAN used?
PVLAN is used in service provider networks, data centers, and shared hosting environments to isolate clients while maintaining shared infrastructure access.
Which OSI layer does PVLAN belong to?
PVLAN operates at Layer 2 (Data Link Layer) of the OSI model.
Is PVLAN Windows specific?
No, PVLAN is not Windows specific. It is a network switch feature implemented in network infrastructure devices.
Is PVLAN Linux specific?
No, PVLAN is not Linux specific. It depends on network hardware support, not the operating system.
Which Transport Protocol is used by PVLAN?
PVLAN does not use any transport protocol as it is a Layer 2 switching technology.
Which Port is used by PVLAN?
PVLAN does not use TCP/UDP ports since it operates at the Data Link Layer.
Is PVLAN using Client server model?
No, PVLAN is a switching mechanism and does not use a client-server model.
In this section, you are going to learn
Terminology
Version Info
rfc details
setup
setup
packet details
usecases
features
Reference links