SMC Networks SMC7824M/FSW manual 4 Private VLAN Connections

NETWORK PLANNING

Private VLAN Connections

This switch can be configured for up to 255 VLANs. Also, it supports Private VLANs that allow traffic isolation for ports within a VLAN and restrict forwarding to only the designated uplink ports.

Each subscriber downlink port (or ports) can be configured into its own Private VLAN, so that traffic is forwarded only to and from the switch’s uplink ports. This provides robust port-based security for each subscriber.

Furthermore, the switch can control the bandwidth of downlink connections using traffic rate limiting. Each fiber port downlink can be limited to values from 1 Mbps to 100 Mbps depending on the needs of the individual user. The service provider can then charge subscribers according to the bandwidth provided.

The figure below illustrates Private VLAN connections to the switch.

To uplink Layer 2/3 switch

FTTH Switch

Ports 27, 28

Port 8

Private VLAN 1

Subscriber A

Ports 18, 19, 20

Private VLAN 2

Subscriber B

Fiber downlinks to subscribers

Figure 2-4 Private VLAN Connections

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