Chapter 48 Private Vlan; Private Vlan Overview - ZyXEL Communications XS3800-28 User Manual

28-port 10gbe l3 managed switch

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Use private VLAN if you want you to block traffic between ports in the same VLAN. Community and

Isolated VLANs are secondary private VLANs that must be associated with a Primary private VLAN.

• Primary: Ports in a Primary VLAN are promiscuous and they can communicate with all promiscuous

ports in the same primary VLAN, and all ports in associated community and isolated VLANs. They

cannot communicate with ports in different primary VLANs.

• Community: Ports in a Community VLAN can communicate with promiscuous ports in an associated

Primary VLAN and other community ports in the same Community VLAN. They cannot communicate

with ports in Isolated VLANs, non-associated Primary VLAN promiscuous ports nor community ports in

different Community VLANs.

• Isolated: Ports in an Isolated VLAN can communicate with promiscuous ports in an associated Primary

VLAN only. They cannot communicate with other isolated ports in the same Isolated VLAN, non-

associated Primary VLAN promiscuous ports nor any community ports.

Table 168 PVLAN Graphic Key

Tagged Private VLANs can span switches but trunking ports must be VLAN-trunking ports – see

Chapter 48 Private VLAN

Primary private VLAN

Community private VLAN

Isolated private VLAN

XS3800-28 User's Guide

Private VLAN