Lantronix SISPM1040-xxxx-L3 Web User Guide
33856 Rev. A https://www.lantronix.com/ 106
VLAN Management > Port Isolation
This page is used for enabling or disabling port isolation on ports in a Private VLAN. A port member of a VLAN
can be isolated to other isolated ports on the same VLAN and Private VLAN.
Port Isolation provides for an apparatus and method to isolate ports on layer 2 switches on the same VLAN to
restrict traffic flow. The apparatus comprises a switch having said plurality of ports, each port configured as a
protected port or a non-protected port. An address table memory stores an address table having a destination
address and port number pair. A forwarding map generator generates a forwarding map which is responsive to a
destination address of a data packet. The method for isolating ports on a layer 2 switch comprises configuring
each of the ports on the layer 2 switch as a protected port or a non-protected port. A destination address on a
data packet is matched with a physical address on said layer 2 switch and a forwarding map is generated for the
data packet based upon the destination address on the data packet. The data packet is then sent to the plurality
of ports pursuant to the forwarding map generated based on whether the ingress port was configured as a
protected or non-protected port.
Port Members: A check box is provided for each port of a private VLAN.
When checked, port isolation is enabled on that port.
When unchecked, port isolation is disabled on that port. By default, port isolation is disabled on all ports.
Buttons
Auto-refresh: Check this box to refresh the page automatically every 3 seconds.
Refresh: Click to refresh the page immediately.
Apply: Click to save changes.
Reset: Click to undo any changes made locally and revert to previously saved values.
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