Port Vlan Trunking; Select The Vlan Type; Figure 30 Port Vlan Trunking; Figure 31 Switch Setup: Select Vlan Type - ZyXEL Communications GS-2724 User Manual

8.3 Port VLAN Trunking

Enable VLAN Trunking on a port to allow frames belonging to unknown VLAN groups to
pass through that port. This is useful if you want to set up VLAN groups on end devices
without having to configure the same VLAN groups on intermediary devices.
Refer to the following figure. Suppose you want to create VLAN groups 1 and 2 (V1 and V2)
on devices A and B. Without VLAN Trunking, you must configure VLAN groups 1 and 2 on
all intermediary switches C, D and E; otherwise they will drop frames with unknown VLAN
group tags. However, with VLAN Trunking enabled on a port(s) in each intermediary switch
you only need to create VLAN groups in the end devices (A and B). C, D and E automatically
allow frames with VLAN group tags 1 and 2 (VLAN groups that are unknown to those
switches) to pass through their VLAN trunking port(s).

Figure 30 Port VLAN Trunking

8.4 Select the VLAN Type

Select a VLAN type in the Switch Setup screen.

Figure 31 Switch Setup: Select VLAN Type

GS-2724 User's Guide
Chapter 8 VLAN
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