Black Box LGB2118A Vlan Port Isolation Configuration, Function name Port Isolation Configuration

Chapter 5: Operation of Web-based Management

Figure 5-11. Add or Remove VLAN Member.

Parameter description:

ID (Group ID): When you want to edit a VLAN group, you must select the Group ID field. Then, you will enter the Tag Base VLAN Group Setting or Port Base VLAN Group Setting page, depending on which VLAN mode you select.

Member: In modify function, this is used to enable or disable if a port is a member of the newly added VLAN. “Enable” means it is a member of the VLAN. Just tick the check box beside the port x to enable it.

Add Group: Create a new port-based VLAN or tag-based VLAN, which depends on the VLAN mode you choose in the VLAN mode function.

Delete Group: Just tick the check box beside the ID, then press the “Delete” button to delete the group.

5.2.5 VLAN Port Isolation Configuration

Function name: Port Isolation Configuration

Function description: Port Isolation provides a method to isolate ports on layer 2 switches on the same VLAN to restrict traffic flow. It applies to a switch that has more than one port, and each port is configured as a protected port or a non-protected port. An address table memory stores an address table with a destination address and port number pair. A forwarding map generator generates a forwarding map that responds to a data packet’s destination address. 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 the 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 all the ports indicated by the forwarding map generated based upon whether the ingress port was configured as a protected or non-protected port.

Use this page 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.

Page 54 724-746-5500 blackbox.com