Vlan Config - TP-Link JetStream T1500G-10MPS User Manual

（1） Untagged: The untagged port can be added in multiple VLANs. If a VLAN-tagged
packet arrives at a port and the VLAN ID in its VLAN tag does not match any of the
VLAN the ingress port belongs to, this packet will be dropped. The packets forwarded
by the untagged port are untagged.
（2） Tagged: The tagged port can be added in multiple VLANs. If a VLAN-tagged packet
arrives at a port and the VLAN ID in its VLAN tag does not match any of the VLAN the
ingress port belongs to, this packet will be dropped. When the VLAN-tagged packets
are forwarded by the Tagged port, its VLAN tag will not be changed.
PVID

PVID (Port VLAN ID) is the default VID of the port. When the switch receives an
un-VLAN-tagged packet, it will add a VLAN tag to the packet according to the PVID of its
received port and forward the packets.
When creating VLANs, the PVID of each port, indicating the default VLAN to which the port
belongs, is an important parameter with the following two purposes:
（1） When the switch receives an un-VLAN-tagged packet, it will add a VLAN tag to the
packet according to the PVID of its received port
（2） PVID determines the default broadcast domain of the port, i.e. when the port receives
UL packets or broadcast packets, the port will broadcast the packets in its default
VLAN.
Different packets, tagged or untagged, will be processed in different ways, after being received
by ports of different link types, which is illustrated in the following table.
Port Type
Untagged
Packets
When untagged
packets
Untagged
received,
port will add the
default
tag, i.e. the PVID
of the ingress
Tagged
port,
packets.
Table 6-1 Relationship between Port Types and VLAN Packets Processing
IEEE 802.1Q VLAN function is implemented on the VLAN Config and Port Config pages.

6.1.1 VLAN Config

On this page, you can configure the 802.1Q VLAN and its ports.
Receiving Packets
Tagged Packets
If the VID of packet
are
is allowed by the
the
port, the packet will
be received.
VLAN
If the VID of packet
is forbidden by the
port, the packet will
to the
be dropped.
Forwarding Packets
Untagged
Packets
The packet will be
forwarded
unchanged.
The packet will be
forwarded with the
PVID of egress port
as its VLAN tag.
65
Tagged
Packets
The packet will
be forwarded
after removing
its VLAN tag
The packet will
be forwarded
with its current
VLAN tag.