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17 VLANs
When the VLAN ID of a native VLAN is specified by the
vlan
The native VLAN is VLAN 1 (the default VLAN) unless explicitly specified otherwise
in the configuration.
To handle tagged frames (where the VLAN tag has a VLAN ID of 1) for the default
VLAN on a trunk port, change the native VLAN to another VLAN.
Command examples
1.
(config)# vlan 10,20
(config-vlan)# exit
Creates VLAN ID 10 and VLAN ID 20 as port VLANs.
2.
(config)# interface fastethernet 0/1
(config-if)# switchport mode trunk
Switches to the Ethernet interface configuration mode for port 0/1. Then, sets the
port as a trunk port. At this point, the native VLAN for trunk port 0/1 is the default
VLAN.
3.
(config-if)# switchport trunk allowed vlan 1,10,20
(config-if)# switchport trunk native vlan 10
(config-if)# exit
Sets VLAN 1, 10, and 20 for
VLAN 10. VLAN 1 (default VLAN) and VLAN 20 handle tagged frames, and VLAN 10,
which is a native VLAN, handles untagged frames.
264
configuration command, the VLAN handles untagged frames on the trunk port.
allowed vlan
on trunk port 0/1. Sets the native VLAN to
switchport trunk allowed
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