switchport trunk allowed
Adds or removes VLANs on a Layer 2 interface in trunk mode.
Syntax
switchport trunk
allowed
{
vlan
}
{
add
vlan_id |
all
|
except
vlan_id
|
none
|
remove
vlan_id
}
Parameters
-
add
vlan_id
- Adds a VLAN to transmit and receive through
the Layer 2 interface. The VLAN can be an 802.1Q VLAN.
-
all
- Allows only 802.1Q VLANs to transmit and receive through the Layer 2 interface. This keyword does not apply to classified or transport VLANs.
-
except
vlan_id
- Allows only 802.1Q VLANs except the specified VLAN ID to transmit and receive through the Layer 2 interface.
-
none
- Allows only 802.1Q VLANs to transmit and receive through the Layer 2 interface. This keyword does not apply to service or transport VFs.
-
remove
vlan_id
- Removes a VLAN that transmits and receives through the Layer 2 interface.
Modes
Interface subtype configuration mode
Examples
To add the tagged VLAN 100 to a specific Ethernet interface:
device# configure terminal
switch(config)# interface ethernet 0/9
switch(conf-if-eth-0/9)# switchport trunk allowed vlan add 100
To remove the tagged VLAN 100 from the interface:
device# configure terminal
switch(config)# interface ethernet 0/9
switch(conf-if-eth-0/9)# switchport trunk allowed vlan remove 100
