D-Link DGS-1510/ME Series Reference Manual page 630

DGS-1510/ME Series Metro Ethernet Switch CLI Reference Guide
Restrictions
Only Administrators can issue this command.
Example
To disable the VLAN Trunk:
DGS-1510-28XMP/ME:admin# disable vlan_trunk
Command: disable vlan_trunk
Success.
DGS-1510-28XMP/ME:admin#
80-3 config vlan_trunk
Description
This command is used to configure a port as a VLAN trunk port. By default, none of the port is a VLAN trunk port.
If the user enables the global VLAN trunk function and configure the VLAN trunk ports, then the trunk port will be
member port of all VLANs. That is, if a VLAN is already configured by the user, but the trunk port is not member
port of that VLAN, this trunk port will automatically become tagged member port of that VLAN. If a VLAN is not
created yet, the VLAN will be automatically created, and the trunk port will become tagged member of this VLAN.
When the user disables the VLAN trunk globally, all VLANs automatically created by VLAN Trunk enabled shall be
destroyed, and all the automatically added port membership will be removed.
A VLAN trunk port and a non-VLAN trunk port cannot be grouped as an aggregated link. To change the VLAN
trunk setting for an aggregated link, the user must apply the command to the master port. However, this setting will
disappear as the aggregated link is destroyed, and the VLAN trunk setting of the individual port will follow the
original setting of the port.
If the command is applied to link aggregation member port excluding the master, the command will be rejected.
The ports with different VLAN configurations are not allowed to form an aggregated link. However, if they are
specified as VLAN trunk port, they are allowed to form an aggregated link.
For a VLAN trunk port, the VLANs on which the packets can be by passed will not be advertised by GVRP on this
port. However, since the traffic on these VLANs are forwarded, this VLAN trunk port should participate the MSTP
instances corresponding to these VLAN.
Format
config vlan_trunk ports [<portlist> | all] | state [enable | disable]
Parameters
<portlist> - Enter a list of ports used for the configuration here.
all - Specifies that all the ports will be used for this configuration.
state - Specifies that the port is a VLAN trunk port or not.
enable - Specifies that the port is a VLAN trunk port.
disable - Specifies that the port is not a VLAN trunk port.
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