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D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch
Figure 5-4. Port VLAN ID (PVID)
The following fields can be set:
Parameter
Description
Unit
Displays the Unit ID of the switch
−
within the switch stack
−
that the VLAN
will be created on.
From/To
These two fields allow you to specify the range of ports that will be
included in the Port-based VLAN that you are creating using the
802.1Q
Port Settings
page.
PVID
A
Port VLAN Identifier is a classification mechanism that associates a port
with a specific VLAN and is used to make forwarding decisions for
untagged packets received by the port. For example, if port #2 is assigned
a PVID of 3, then all untagged packets received on port #2 will be assigned
to VLAN 3. This number is generally the same as the VID# number
assigned to the port in the Edit 802.1Q VLANs menu above.
Ingress Check
This field can be toggled using the space bar between
Enabled
and
Disabled
.
Enabled
enables the port to compare the VID tag of an incoming
packet with the PVID number assigned to the port. If the two are different,
the port filters (drops) the packet.
Disabled
disables Ingress filtering.
Ingress Checking is disabled by default.
Frame Type
Allows you to specify the action the switch will take when a packet is
received. If you specify
Admin_all
the switch will receive and forward all
packets to this VLAN regardless of whether or not the packet has an
802.1Q VLAN tag or not. If you specify
Tagged_only
the switch will drop
any untagged packets it receives for this VLAN.
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