Hirschmann RS20 User Manual page 170

Network Load Control
Configuring the ports
Figure 47: Defining the VLAN membership of the ports.
Assign the ports of the device to the corresponding VLANs by
clicking on the related table cell to open the selection menu and
define the status. The selection options are:
- = currently not a member of this VLAN (GVRP allowed)
T = member of VLAN; send data packets with tag
U = Member of the VLAN; send data packets without tag
F = not a member of the VLAN (also disabled for GVRP)
Because terminal devices usually do not interpret data packets with
a tag, you select the U setting. You only select the T setting at the
uplink port at which the VLANs communicate with each other.
Click "Set" to temporarily save the entry in the configuration.
Select the Switching:VLAN:Port dialog.
170
8.6 VLANs
Basic Configuration
Release 6.0 07/2010