User’s Manual of MGSW-28240F
4.6.10.1 Two separate 802.1Q VLANs
The diagram shows how the Managed Switch handles 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 4-6-8 appears and Table 4-1 describes the port configuration of the Managed
Switch.
Figure 4-6-8: Two Separate VLAN Diagrams
VLAN Group VID Untagged Members Tagged Members
VLAN Group 1 1 Port-7 ~ Port-10 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 follows:
Untagged packet entering VLAN 2
1. While [PC-1] transmit an untagged packet enters Port-1, the Managed Switch will tag it with a VLAN Tag=2.
[PC-2] and [PC-3] will receive 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.
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