Allied Telesis AT-S62 - Manual (Page 554)

Chapter 24: Port-based and Tagged Virtual LANs
554 Section V: VLANs
The table below lists the port assignments for the Sales, Engineering, and
Production VLANs on the switches:
ˆ 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.
ˆ 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.
ˆ 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 switch.
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