Allied Telesis AT-S39 - Manual (Page 127)

AT-S39 User’s Guide
127
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 interconnected 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 exchange Ethernet frames with the other VLANs
and to access the WAN.
❑ Engineering VLAN - This port-based VLAN uses Ports 9 to 11 on
the top switch and Ports 19 to 24 on the bottom switch as
connections to the workstations of the VLAN.
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 and 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 to only 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.
Switch Sales VLAN
(VID 2) Engineering VLAN
(VID 3) Production VLAN
(VID 4)
AT-8024 (top) Ports 1 - 6, 18 (PVID 2) Ports 9 - 11, 14, 20
(PVID 3) Ports 21 - 24 (PVID 4)
AT-8024 (bottom) Ports 1 - 6 (PVID 2) Ports 13, 19-24 (PVID 3) none