1-9
Follow these steps to assign a trunk port to one or multiple VLANs:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter
Ethernet
interface view
interface interface-type
interface-number
Enter Layer-2
aggregate
interface view
interface bridge-aggregation
interface-number
Enter
interface view
or port group
view
Enter port
group view
port-group manual
port-group-name
Required
Use either command.
z
In Ethernet interface view, the
subsequent configurations
apply to the current port.
z
In port group view, the
subsequent configurations
apply to all ports in the port
group.
z
In Layer-2 aggregate
interface view, the
subsequent configurations
apply to the Layer-2
aggregate interface and all its
member ports.
Configure the link type of the
port or ports as trunk
port link-type
trunk
Required
Assign the trunk port(s) to the
specified VLAN(s)
port trunk permit vlan
{
vlan-id-list
|
all
}
Required
By default, a trunk port carries
only VLAN 1.
Configure the default VLAN of
the trunk port(s)
port trunk pvid vlan
vlan-id
Optional
VLAN 1 is the default VLAN by
default.
z
To change the link type of a port from trunk to hybrid or vice versa, you must set the link type to
access first.
z
After you use the
port link-type
{
access
|
hybrid
|
trunk
} command to change the link type of an
interface, the loopback detection action configured on the interface with the
loopback-detection
action
command will be restored to the default. For details about the
port link-type
command, see
VLAN Commands
in the
Access Volume.
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After configuring the default VLAN for a trunk port, you must use the
port trunk permit vlan
command to configure the trunk port to allow packets from the default VLAN to pass through, so
that the egress port can forward packets from the default VLAN.
z
After you configure a command on a Layer-2 aggregate interface, the system starts applying the
configuration to the aggregate interface and its aggregation member ports. If the system fails to do
that on the aggregate interface, it stops applying the configuration to the aggregation member ports.
If it fails to do that on an aggregation member port, it simply skips the port and moves to the next
port.
Assigning a Hybrid Port to a VLAN
A hybrid port can carry multiple VLANs. You can assign it to a VLAN in interface view or port group view.
