Vlan Config - TP-Link TL-SG2424 User Manual

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
port,
Tagged
packets.
Table 6-1 Relationship between Port Types and VLAN Packets Processing
IEEE 802.1Q VLAN function is implemented on the VLAN 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
ingress
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.
66
Tagged
Packets
The packet will
be forwarded
after removing
its VLAN tag
The packet will
be forwarded
with its current
VLAN tag.