Niveo Professional NGS16TP - Manual (Page 102)

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NIVEO PROFESSIONAL Gigabit Management Switch
User's Manual
For 802.1Q VLAN, every port could be tag port or untag port.
Tag port will always send tagged packets and is used for switch-to-switch cascading. It is
a VLAN trunk connection because there could be more than one VLAN working through
it. And its role is a “Trunk” for 802.1Q VLAN groups operation between switches.
Untag port will always send untagged packets and is used for switch to users connection.
And its role is a “Access” connection for users.
You can define ports as “Trunk” or “Access” according to their connection devices and
your applications.
If a port is defined as “Hybrid”, it is a tag port basically. But it will act as an untag port for
packets working in VLAN defined in “Untag VID”. So, it is called a hybrid port.
For example, set Port 5 as “Hybrid” and its Untag VID as 10. Port 5 will act as a tag port
for all packets except packets for VLAN 10. Port 5 will act as an untag port for packets
working for VLAN 10.
1-3). VLAN Stacking