Vlan Config - TP-Link T1700X-16TS 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
Untagged When untagged
packets are
received, the port
will add the default
VLAN tag, i.e. the
PVID of the ingress
Tagged
port, to the 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.
Choose the menu VLAN→802.1Q VLAN→VLAN Config to load the following page.
To ensure the normal communication of the factory switch, the default VLAN of all ports is set to
VLAN1.
Receiving Packets
Tagged Packets
If the VID of packet
is allowed by the
port, the packet will
be received.
If the VID of packet
is forbidden by the
port, the packet will
be dropped.
Figure 6-3 VLAN Table
62
Forwarding Packets
Untagged Packets Tagged Packets
The packet will
The packet will be
be forwarded
forwarded
after removing
unchanged.
its VLAN tag
The packet will be The packet will
forwarded with the be forwarded
PVID of egress port with its current
as its VLAN tag. VLAN tag.