
17-54
17.1.35 switchport trunk native vlan
Command:
switchport trunk native vlan <
vlan-id>
no
switchport trunk native vlan
Function:
Set the PVID for Trunk port; the “
no
switchport trunk native vlan
” command restores the default setting.
Parameter:
<
vlan-id>
is the PVID for Trunk port.
Command mode:
Port Mode.
Default:
The default PVID of Trunk port is 1.
Usage Guide:
PVID concept is defined in 802.1Q. PVID in Trunk port is used to tag untagged frames. When an untagged frame
enters a Trunk port, the port will tag the untagged frame with the native PVID set with this commands for VLAN
forwarding.
Example:
Set the native VLAN for a Trunk port to 100.
Switch(config)#interface ethernet 1/5
Switch(Config-If-Ethernet1/5)#switchport mode trunk
Switch(Config-If-Ethernet1/5)#switchport trunk native vlan 100
Switch(Config-If-Ethernet1/5)#exit
17.1.36 vlan
Command:
vlan WORD
no vlan WORD