Planet GSD-802PS [32/87] Vlan setting example

User’s Manual of GSD-800S / GSD-802S / GSD-802PS

4.5.3 VLAN setting example:

4.5.3.1 Two separate 802.1Q VLAN

The diagram shows how the switch handle Tagged and Untagged traffic flow for two VLANs. VLAN Group 2 and VLAN

Group 3 are separated VLAN. Each VLAN isolate network traffic so only members of the VLAN receive traffic from the

same VLAN members. The screen in Figure 4-11 appears and Table 4-1 describes the port configuration of switch.

Figure 4-11 two separate VLAN diagram

VLAN Group VID Untagged Members Tagged Members

VLAN Group 1 1 Port-7~Port-8 N/A

VLAN Group 2 2 Port-1,Port-2 Port-3

VLAN Group 3 3 Port-4,Port-5 Port-6

Table 4-1 VLAN and Port Configuration

The scenario described as follow:

 Untagged packet entering VALN 2

1. While [PC-1] transmit an untagged packet enters Port-1, the switch will tag it with a VLAN Tag=2. [PC-2] and

[PC-3] will received the packet through Port-2 and Port-3.

2. [PC-4],[PC-5] and [PC-6] received no packet.

3. While the packet leaves Port-2, it will be stripped away it tag becoming an untagged packet.

4. While the packet leaves Port-3, it will keep as a tagged packet with VLAN Tag=2.

 Tagged packet entering VLAN 2

5. While [PC-3] transmit a tagged packet with VLAN Tag=2 enters Port-3, [PC-1] and [PC-2] will received the

packet through Port-1 and Port-2.

6. While the packet leaves Port-1 and Port-2, it will be stripped away it tag becoming an untagged packet.