
Stackable NWay Ethernet Switch User’s Guide
44
Switch Management Concepts
other port (Port 10) is a member of VLAN 2 (and can therefore
receive VLAN 2 packets). If port 10 is not a member of VLAN 2, then
the packet will be dropped by the switch and will not reach it’s
destination. If Port 10 is a member of VLAN 2, the packet will go
through. This selective forwarding feature based on VLAN criteria is
how VLANs segment networks. The key point being that Port 1 will
only transmit on VLAN 2, because it’s Port VLAN ID number is 2
(PVID=2).
Sharing Resources Across VLANs
Network resources such as printers and servers however, can be
shared across VLANs. This is achieved by setting up overlapping
VLANs as shown in the diagram below.
Port
VIDs=1
Network Server
Graphics
Workstation
Port
VIDs=3
Port
VIDs=2
VLAN1
VLAN2
VLAN3
Workstations
Figure 5-4. Example of typical VLAN configuration
In the above example, there are three different VLANs and each port
can transmit packets on one of them according to their Port VLAN
ID (PVID). However, a port can receive packets on all VLANs (VID)
that it belongs to. The assignments are as follows:
Содержание TEG-S224 Series
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