1-16port trunk permit vlanSyntaxport trunk permit vlan { vlan-id-list | all }undo port trunk permit vlan { vlan-id-list | all }ViewEthernet interface view, port group view, Layer 2 aggregate interface viewDefault Level2: System levelParametersvlan-id-list: VLANs that the trunk port(s) will be assigned to. This argument is expressed in the format of[vlan-id1 [ to vlan-id2 ] ]&<1-10>, where vlan-id ranges from 1 to 4094 and &<1-10> indicates that youcan specify up to 10 VLAN IDs or VLAN ID ranges.all: Permits all VLANs to pass through the trunk port(s). On GVRP-enabled trunk ports, you mustconfigure the port trunk permit vlan all command to ensure that the traffic of all dynamically registeredVLANs can pass through. However, When GVRP is disabled on a port, you are discouraged toconfigure the command on the port. This is to prevent users of unauthorized VLANs from accessingrestricted resources through the port.DescriptionUse the port trunk permit vlan command to assign the current trunk port(s) to the specified VLAN(s).Use the undo port trunk permit vlan command to remove the trunk port(s) from the specified VLANs.By default, a trunk port allows only packets from VLAN 1 to pass through.A trunk port can carry multiple VLANs. If you execute the port trunk permit vlan command multipletimes, the VLANs the trunk port carries are the set of VLANs specified by vlan-id-list in each execution.Note that on a trunk port, only traffic of the default VLAN can pass through untagged.z In port group view, this command applies to all ports in the port group. For information about portgroups, refer to Ethernet Interface Configuration.z In Layer 2 aggregate interface view, this command applies to the Layer 2 aggregate interface andall its member ports. After you perform the configuration, the system starts applying theconfiguration to the aggregate interface and its aggregation member ports. If the system fails to dothat 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 nextport. For information about Layer 2 aggregate interfaces, refer to Link Aggregation Configuration.Related commands: port link-type.Examples# Assign the trunk port GigabitEthernet1/0/1 to VLAN 2, VLAN 4, and VLAN 50 through VLAN 100. system-view[Sysname] interface gigabitethernet 1/0/1[Sysname-GigabitEthernet1/0/1] port link-type trunk[Sysname-GigabitEthernet1/0/1] port trunk permit vlan 2 4 50 to 100
