D-Link DXS-3250 - xStack Switch - Stackable, Cli Manual

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VLAN Commands
Page 409
switchport protected
The switchport protected Interface Configuration mode command overrides the FDB decision, and sends all
Unicast, Multicast and Broadcast traffic to an uplink port. To disable overriding the FDB decision, use the no form
of this command..
Syntax
switchport protected { ethernet port | port-channel port-channel-number }
no switchport protected
Parameters
•
port — Specifies the uplink Ethernet port.
•
port-channel-number — Specifies the uplink port-channel.
Default Configuration
Switchport protected is disabled.
Command Mode
Interface Configuration (Ethernet, port-channel) mode
User Guidelines
Private VLAN Edge (PVE) supports private communication by isolating PVE-defined ports and ensuring that all
Unicast, Broadcast and Multicast traffic from these ports is only forwarded to uplink port(s).
PVE requires only one VLAN on each devcie, but not on every port; this reduces the number of VLANs required
by the device. Private VLANs and the default VLAN function simultaneously in the same device.
Example
This example configures ethernet port 1/7 as a protected port, so that all traffic is sent to its uplink (ethernet port 1/
9).
Console(config)# interface ethernet 1/7
Console(config-if)# switchport forbidden vlan add 234-256
Console(config-if)# exit
Console(config)# interface ethernet 1/9
Console(config-if)# switchport protected ethernet 1/7