Allied Telesis AT-S63 - Manual (Page 501)

AT-S63 Management Software Menus Interface User’s Guide
Section III: VLANs 501
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 19, ”Port-based and Tagged VLANs” on page 427.
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.
Following 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.
Allied Telesyn recommends that you create tables similar to this before
you create your own protected ports VLAN. You are prompted for this
Name Internet_VLAN_1
VID 8
Untagged Ports in
VLAN 1-10, 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