Black Box LGB5128A Network Hardware User Manual


 
LGB5128A User Manual
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Figure 3-10.5.1: The Private VLAN Membership Configuration
Parameter description:
Delete :
To delete a private VLAN entry, check this box. The entry will be deleted during the next
save.
Private VLAN ID :
Indicates the ID of this particular private VLAN.
Port Members :
A row of check boxes for each port is displayed for each private VLAN ID. To include a port
in a Private VLAN, check the box. To remove or exclude the port from the Private VLAN,
make sure the box is unchecked. By default, no ports are members, and all boxes are
unchecked.
Adding a New Private VLAN :
Click to add a new private VLAN ID. An empty row is added to the table, and the private
VLAN can be configured as needed.
Buttons:
SaveClick to save changes.
Reset- Click to undo any changes made locally and revert to previously saved
values.
3-10.5.2 Port Isolation
Port Isolation provides for an apparatus and method to isolate ports on layer 2 switches on
the same VLAN to restrict traffic flow. Each port can be configured as a protected port or a
non-protected port. An address table memory stores an address table that has a destination
address and port number pair. A forwarding map generator generates a forwarding map that
is responsive to a destination address of a data packet. To isolate ports on a layer 2 switch,
configure 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 upon whether the ingress port was configured as a
protected or non-protected port.
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.
Web Interface
To configure Port Isolation configuration in the Web interface:
1. Click VLAN, Port Isolation.
2 Check the box(es) below the port(s) you want to isolate.
3. Click Save.