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TRENDnet User's Guide
VLAN
Port Isolation
The port isolation is a port-based virtual LAN feature. It partitions the switching ports into
virtual private domains designated on a per port basis. Data switching outside of the
port's private domain is not allowed. It will ignore the packets' tag VLAN information.
This feature is a per port setting to configure the egress port(s) for the specific port to
forward its received packets. If the CPU port (port 0) is not an egress port for a specific
port, the host connected to the specific port cannot manage the Switch.
If you wish to allow two subscriber ports to talk to each other, you must define the egress
port for both ports. CPU refers to the Switch management port. By default it forms a VLAN
with all Ethernet ports. If it does not form a VLAN with a particular port then the Switch
cannot be managed from that port.
Example: If you want to allow port-1 and port-3 to talk to each other, you must configure
as below:
[DEVICE_NAME](config)#interface 1/0/1
[DEVICE_NAME](config-if)#port-isolation ports 3
[DEVICE_NAME](config-if)#exit
; Allow the port-1 to send its ingress packets to port-3.
[DEVICE_NAME](config)#interface 1/0/3
[DEVICE_NAME](config-if)#port-isolation ports 1
[DEVICE_NAME](config-if)#exit
; Allow the port-3 to send its ingress packets to port-1
CLI Configuration
Node
Command
enable
show port-
isolation
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Description
This command displays the current port isolation
configurations.
interface
port-isolation
ports PORTLISTS
interface
no port-isolation
Example:
[DEVICE_NAME](config)#interface 1/0/2
[DEVICE_NAME](config-if)#port-isolation ports 3-6
Web Configuration
Advanced Settings > VLAN > Port Isolation
Managed Industrial L2 Switch
"V"
indicates the port's packets can be sent
to that port.
"-"
indicates the port's packets cannot be
sent to that port.
This command configures a port or a range of
ports to egress traffic from the specific port.
This command configures all ports to egress
traffic from the specific port.
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