8-6
vlan
command, the default VLAN of the port changes to VLAN 1. The removal of the VLAN
specified as the default VLAN of a trunk or hybrid port, however, does not affect the default VLAN
setting on the port.
z
It is recommended that you set the same default VLAN ID for the local and remote ports.
z
Ensure that a port is assigned to its default VLAN. Otherwise, when the port receives frames
tagged with the default VLAN ID or untagged frames (including protocol packets such as STP
BPDUs), it filters out these frames.
Ports of different link types handle frames as follows:
Actions (in the inbound direction)
Port link type
Untagged frame
Tagged frame
Actions (in the outbound direction)
Access
Tag the frame with
the default VLAN
tag.
z
Receive the frame if its
VLAN ID is the same as
the default VLAN ID.
z
Drop the frame if its VLAN
ID is different from the
default VLAN ID.
Remove the default VLAN tag and
send the frame.
Trunk
z
Remove the tag and send the
frame if the frame carries the
default VLAN tag and the port
belongs to the default VLAN.
z
Send the frame without removing
the tag if its VLAN is carried on the
port but is different from the
default one.
Hybrid
Check whether the
default VLAN is
carried on the port:
z
If yes, tag the
frame with the
default VLAN
tag.
z
If not, drop the
frame.
z
Receive the frame if its
VLAN is carried on the
port.
z
Drop the frame if its VLAN
is not carried on the port.
Send the frame if its VLAN is carried
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 default VLAN.
Assigning an Access Port to a VLAN
You can assign an access port to a VLAN in VLAN view, Ethernet interface view, or WLAN-BSS
interface view.
1) In VLAN view
Follow these steps to assign one or multiple access ports to a VLAN in VLAN view:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter VLAN view
vlan
vlan-id
Required
If the specified VLAN does not exist, this
command creates the VLAN first.
