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Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
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Chapter21 Configuring Port-Based Traffic Control
Configuring Protected Ports
Protected Port Configuration Guidelines
You can configure protected ports on a physical interface that is configured as an NNI (for example,
Gigabit Ethernet port 1) or an EtherChannel group (for example , por t-c hanne l 5 ). Wh en yo u en able
protected ports for a port channel, it is enabled for all ports in the port-channel group.
Do not configure a private-VLAN port as a protected port. Do not configure a protected port as a
private-VLAN port. A private-VLAN isolated port does not forward traffic to other is olat ed por ts or
community ports. For more information about private VLANs, see Chapter 12, “Configuring Private
VLANs.”
Configuring a Protected Port
Beginning in privileged EXEC mode, follow these steps to define a port as a protected port:
To disable protected port, use the no switchport protected interface configuration command.
This example shows how to configure a port as a protected port:
Switch# configure terminal
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# switchport protected
Switch(config-if)# end
This example shows how to configure a FastEthernet port as a protected port.
Switch# configure terminal
Switch(config)# interface fastethernet 0/1
Switch(config-if)# port-type NNI
Switch(config-if)# no shutdown
Switch(config-if)# switchport protected
Switch(config-if)# end
Note There can only be four NNIs on the Cisco ME switch at the same time.
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 interface interface-id Specify the interface to configure, and enter interface
configuration mode. The interface must be an NNI.
Note By default, UNIs are protected ports.
Step3 switchport protected Configure the interface to be a protected port.
Step4 end Return to privileged EXEC mode.
Step5 show interfaces interface-id switchport Verify your entries.
Step6 copy running-config startup-config (Optional) Save your entries in the configuration file.