Allied Telesis AT-S62 - Manual (Page 394)

Chapter 20: Tagged and Port-based Virtual LANs
Section V: Virtual LANs 394
The table below lists the port assignments for the Sales, Engineering,
and Production VLANs on the switches:
❑ Sales VLAN - This VLAN spans both switches. It has a VID value of
2 and consists of seven untagged ports on the top switch and six
untagged ports on the bottom switch.
The two parts of the VLAN are connected by a direct link from port
6 on the top switch to port 5 on the bottom switch. This direct link
allows the two parts of the Sales VLAN to function as one logical
LAN segment.
Port 18 on the top switch connects to the router. This port allows
the Sales VLAN to exchanged Ethernet frames with the other
VLANs and to access the WAN.
❑ Engineering VLAN - The workstations of this VLAN are connected
to ports 9 to 11 on the top switch and ports 19 to 24 on the bottom
switch.
Since this VLAN spans multiple switches, it needs a direct
connection between its various parts to provide a
communications path. This is provided in the example with a
direct connection from port 14 on the top switch to port 13 on the
bottom switch.
This VLAN uses port 20 on the top switch as a connection to the
router and the WAN.
❑ Production VLAN - This is the final VLAN in the example. It has the
VLAN of 4 and its ports have been assigned the PVID also of 4.
The nodes of this VLAN are connected only to the top switch. So
this VLAN does not require a direct connection to the bottom
VLAN. However, it uses port 22 as a connection to the router.
Sales VLAN
(VID 2) Engineering VLAN
(VID 3) Production VLAN
(VID 4)
AT-8524M Switch (top) Ports 1 - 6, 18 (PVID 2) Ports 9 - 11, 14, 20
(PVID 3)
Ports 21 - 24 (PVID 4)
AT-8524M Switch (bottom) Ports 1 - 6 (PVID 2) Ports 13, 19-24 (PVID 3) none