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•
Make sure a port permits its PVID. Otherwise, when the port receives frames tagged with the
PVID or untagged frames, the port drops these frames.
Frame handling methods
The following table shows how ports of different link types handle frames:
Actions
In the inbound
direction for an
untagged
frame
In the inbound
direction for a
tagged frame
In the outbound
direction
Restrictions and guidelines
The device supports a maximum of 64 VLANs. The configurable VLAN IDs are in the range of 1 to
4094.
Recommended VLAN configuration procedures
Recommended configuration procedure for assigning an
access port to a VLAN
Step
Creating
1.
Configuring the link type of a
2.
Setting the PVID for a
3.
Configuring the access ports as untagged
4.
members of a VLAN:
Access
Tags the frame with the
PVID tag.
•
Receives the
frame if its VLAN
ID is the same as
the PVID.
•
Drops the frame if
its VLAN ID is
different from the
PVID.
Removes the VLAN tag
and sends the frame.
VLANs.
port.
port.
Trunk
Checks whether the PVID is permitted on the port:
•
If yes, tags the frame with the PVID tag.
•
If not, drops the frame.
•
Receives the frame if its VLAN is permitted on the port.
•
Drops the frame if its VLAN is not permitted on the port.
•
Removes the tag and
sends the frame if the
frame carries the PVID tag
and the port belongs to the
PVID.
•
Sends the frame without
removing the tag if its
VLAN is carried on the port,
but is different from the
PVID.
Remarks
Required.
Create one or multiple VLANs.
Optional.
Configure the link type of the port as access.
By default, the link type of a port is access.
Configure the PVID of the
access port.
N/A
109
Hybrid
Sends the frame if its
VLAN is permitted on the
port. The frame is sent with
the VLAN tag removed or
intact depending on your
configuration with the port
hybrid vlan command.
This is true of the PVID.
Required.
An access port has only
one untagged VLAN and
the untagged VLAN is its
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