Vlan Support - Alvarion BreezeACCESS VL 5.4 System Manual

Operation and Administration
Bridge Parameters
The Bridge Parameters menu provides a series of parameter sets that
enables configuring parameters such as control and filtering options for
broadcast transmissions, VLAN support, and Type of Service prioritization.

VLAN Support

The VLAN Support menu enables defining the parameters related to the
IEEE 802.1Q compliant VLAN-aware (Virtual LAN-aware) feature of the
BreezeACCESS VL units. Each VLAN includes stations that can
communicate with each other, but cannot communicate with stations
belonging to different VLANs. The VLAN feature also provides the ability to
set traffic priorities for transmission of certain frames. The information
related to the VLAN is included in the VLAN Tag Header, which is inserted
in each frame between the MAC header and the data. VLAN
implementation in BreezeACCESS VL units supports frame routing by port
information, whereby each port is connected to only one VLAN.
The VLAN Support menu enables configuring the following parameters:
VLAN ID-Data (SU only)
The VLAN-ID Data is applicable for Access Links only. It enables defining
the VLAN ID for data frames, which identifies the VLAN to which the unit
belongs.
Valid values range from 1 to 4094.
Default value: 1.
The VLAN ID-Data affects frames received from the wireless link port, as
follows:
♦ Only tagged frames with a VLAN ID (VID) equal to the VLAN ID - Data
defined in the unit are forwarded to the Ethernet port.
♦ The tag headers are removed from the data frames received from the
wireless link before they are transmitted on the Ethernet port.
The VLAN ID-Data affects frames received from the Ethernet port, as
follows:
♦ A VLAN Data Tag is inserted in all untagged frames received from the
Ethernet port before transmission on the wireless link. The tag
includes the values of the VLAN ID - Data and the
VLAN Priority - Data parameters.
♦ Tagged frames received on Ethernet port, which are meant to be
forwarded to the wireless link port, are discarded. This includes frames
with tagging for prioritization purpose only.
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