Switchport protected – Allied Telesis AT-S95 CLI (AT-8000GS Series) User Manual
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VLAN Commands
Page 347
Example
The following example gives VLAN number 19 the name Marketing.
switchport protected
The switchport protected Interface Configuration mode command enables Private VLAN Edge, by overriding the
FDB decision, and sends all Unicast, Multicast and Broadcast traffic to an uplink port. Use the no form of this
command to disable overriding the FDB decisiond.
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 device, 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.
The uplink must be a GE port.
Example
This example configures ethernet port 1/g8 as a protected port, so that all traffic is sent to its uplink (ethernet port
1/g9).
console(config)# interface vlan 19
console(config-if)# name Marketing
console(config)# interface ethernet 1/g8
console(config-if)# switchport forbidden vlan add 234-256
console(config-if)# exit
console(config)# interface ethernet 1/g9
console(config-if)# switchport protected ethernet 1/g1