Transparent-Vlan - Siemens SCALANCE XM-400 Configuration Manual

Network structures
6.1 VLAN
6.1.4.6

transparent-vlan

Description
With this command, you change a VLAN to the transparent mode.
Ports that were assigned to this VLAN as members or untagged members now become
transparent ports.
This means the following:
● The port VLAN ID of the transparent ports is set to the ID of this VLAN.
● Untagged frames that are received at these ports are forwarded to all other transparent
ports once again without tag as long as they are not forwarded to a standard VLAN by a
protocol or subnet rule.
● Flags tagged with VLAN ID 0 and that are received at these ports are forwarded to all
other transparent ports once again tagged with VLAN ID 0 as long as they are not
forwarded to a standard VLAN by a protocol or subnet rule.
● Frames tagged with the VLAN ID of the transparent VLAN and that are received at these
ports are forwarded to all transparent ports once again tagged with the VLAN ID of the
transparent VLAN.
● Other frames are forwarded according to the normal VLAN rules and a transparent port
behaves like an untagged member in this VLAN.
Requirement
You are in the VLAN configuration mode.
The command prompt is as follows:
cli(config-vlan-$$$)#
Syntax
Call the command without parameters:
transparent-vlan
Result
The VLAN is changed to transparent mode.
Further notes
● All ports that were not members or untagged members in the relevant VLAN are
automatically set to the Forbidden status after the command executes.
● As long as a VLAN is configured as a transparent VLAN, the ports belonging to this VLAN
cannot be modified.
● Note that only one VLAN can become a transparent VLAN.
You disable the setting with the
174
command.
no transparent-vlan
SCALANCE XM-400/XR-500 Command Line Interface
Configuration Manual, 05/2014, C79000-G8976-C252-07