Allied Telesis AT-S62 - Manual (Page 583)

AT-S62 Menus Interface User’s Guide
Section V: Virtual LANs 583
In contrast, the uplink port in a protected ports VLAN, which is shared by
the ports in the different groups, can be either tagged or untagged. The
device connected to it does not necessarily need to be 802.1Q
compliant.
Note
For explanations of VIDs and tagged and untagged ports, refer to
Chapter 25, ”Tagged and Port-based Virtual LANs” on page 513.
To create a protected ports VLAN, you perform many of the same steps
that you do when you create a new port-based or tagged VLAN. You
give it a name and a unique VID, and you indicate which of the ports will
be tagged and untagged. What makes creating this type of VLAN
different is that you must assign the ports of the VLAN to their respective
groups.
Here is an example of a protected ports VLAN. The first table lists the
name of the VLAN, the VID, and the tagged and untagged ports. It also
indicates which port will function as the uplink port, in this case port 22.
The second table lists the different groups in the VLAN and the ports for
each group.
Name Internet_VLAN_1
VID 8
Untagged Ports in
VLAN 1-10, 22, 25
Tagged Ports in
VLAN none
Uplink Port(s) 22
Group Number Port(s)
1 1-2
2 3
3 4
4 5-7
5 8
6 9-10