Cisco Systems 3750E manual Configuring a Layer 2 Interface as a Private-VLAN Host Port, 16-12

Chapter 16 Configuring Private VLANs

Configuring Private VLANs

Configuring a Layer 2 Interface as a Private-VLAN Host Port

Beginning in privileged EXEC mode, follow these steps to configure a Layer 2 interface as a private-VLAN host port and to associate it with primary and secondary VLANs:

Note Isolated and community VLANs are both secondary VLANs.

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	interface interface-id	Enter interface configuration mode for the Layer 2
		interface to be configured.
Step 3
	switchport mode private-vlan host	Configure the Layer 2 port as a private-VLAN host port.
Step 4
	switchport private-vlan host-association	Associate the Layer 2 port with a private VLAN.
	primary_vlan_id secondary_vlan_id
Step 5
	end	Return to privileged EXEC mode.
Step 6
	show interfaces [interface-id]switchport	Verify the configuration.
Step 7
	copy running-config startup config	(Optional) Save your entries in the switch startup
		configuration file.

This example shows how to configure an interface as a private-VLAN host port, associate it with a private-VLAN pair, and verify the configuration:

Switch# configure terminal

Switch(config)# interface gigabitethernet1/0/22

Switch(config-if)#switchport mode private-vlan host

Switch(config-if)#switchport private-vlan host-association 20 25

Switch(config-if)# end

Switch# show interfaces gigabitethernet1/0/22 switchport

Name: Gi1/0/22

Switchport: Enabled

Administrative Mode: private-vlan host

Operational Mode: private-vlan host

Administrative Trunking Encapsulation: negotiate

Operational Trunking Encapsulation: native

Negotiation of Trunking: Off

Access Mode VLAN: 1 (default)

Trunking Native Mode VLAN: 1 (default)

Administrative Native VLAN tagging: enabled

Voice VLAN: none

Administrative private-vlan host-association: 20 (VLAN0020) 25 (VLAN0025)

Administrative private-vlan mapping: none

Administrative private-vlan trunk native VLAN: none

Administrative private-vlan trunk Native VLAN tagging: enabled

Administrative private-vlan trunk encapsulation: dot1q

Administrative private-vlan trunk normal VLANs: none

Administrative private-vlan trunk private VLANs: none

Operational private-vlan:

20 (VLAN0020) 25 (VLAN0025)

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	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
16-12	OL-9775-02