H3C S5120-SI Series Command Reference Manual page 157

In port group view, this command applies to all ports in the port group. For information about port
groups, refer to Ethernet Interface Configuration.
In Layer 2 aggregate interface view, this command applies to the Layer 2 aggregate interface and
all its member ports. After you perform the configuration, 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. For information about Layer 2 aggregate interfaces, refer to Link Aggregation Configuration.
The local and remote trunk ports must use the same default VLAN ID for the traffic of the default
VLAN to be transmitted properly.
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 port can forward packets from the default VLAN.
Related commands: port link-type, port trunk permit vlan.
Examples
# Configure VLAN 100 as the default VLAN of the trunk port GigabitEthernet1/0/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] port link-type trunk
[Sysname-GigabitEthernet1/0/1] port trunk pvid vlan 100
# Configure VLAN 100 as the default VLAN of the trunk Layer 2 aggregate interface
Bridge-aggregation 1, assuming Bridge-aggregation 1 does not have member ports.
<Sysname> system-view
[Sysname] interface bridge-aggregation 1
[Sysname-Bridge-Aggregation1] port link-type trunk
[Sysname-Bridge-Aggregation1] port trunk pvid vlan 100
# Configure VLAN 100 as the default VLAN of the trunk Layer 2 aggregate interface
Bridge-aggregation 1. Among the member ports of the aggregation group corresponding to
Bridge-aggregation 1, GigabitEthernet1/0/2 is an access port and GigabitEthernet1/0/3 is a trunk port.
<Sysname> system-view
[Sysname] interface bridge-aggregation 1
[Sysname-Bridge-Aggregation1] port link-type trunk
[Sysname-Bridge-Aggregation1] port trunk pvid vlan 100
Error: Failed to configure on interface GigabitEthernet1/0/2! This port is not a Trunk port!
The output above shows that the configuration on Bridge-aggregation 1 and the member port
GigabitEthernet1/0/3 succeeded; the configuration on GigabitEthernet1/0/2 failed because
GigabitEthernet1/0/2 was not a trunk port.
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