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Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide User Manual

Page 413

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FIGURE 93 Example PVLAN network with tagged ports

The following table lists the differences between PVLANs and standard VLANs.

Comparison of PVLANs and standard port-based VLANs

TABLE 56

Forwarding behavior

Private VLANs

Standard VLANs

All ports within a VLAN constitute a common layer broadcast domain

No

Yes

Broadcasts and unknown unicasts are forwarded to all the VLAN ports
by default

No (isolated VLAN)

Yes (community VLAN)

Yes (Primary)

Yes

Known unicasts

No (isolated VLAN)

Yes (community VLAN)

Yes (Primary)

Yes

VLANs

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