Alvarion BreezeACCESS II System Manual page 201

Menus and Parameters
Show VLAN Parameters – Displays the current values of the
VLAN Support parameters.
ToS Priority Parameters (AU and SU)
ToS Priority – To set voice priority parameters to support
end-to-end IPv4 Type of Service (ToS) Layer 3 prioritization
according to RFC 791. The ToS Priority menu includes the following
parameters:
Voice Packets ToS (SU with voice support only) – Sets the value
of the Type of Service (ToS) field in the IP header of voice frames
(RTP packets). If the router/gateway in the base stations
supports quality of service based on IPv4 ToS, the value of this
parameter should be configured according to the definitions of
the router/gateway in order to take advantage of the QoS feature
and to ensure that voice packets will be handled accordingly.
ToS Precedence Threshold (AU and SU) – ToS based
prioritization is in accordance with the precedence bits of the
ToS field in the IP header. An IP packet received from the
Ethernet port will be routed to the Mid queue if one of the
following conditions is met:
a
b
Ethernet Broadcast Filtering (SU only)
Allows defining the Layer 2 (Ethernet) broadcast and multicast filtering
capability. The Ethernet Broadcast Filtering allows enhancing the
security of the system and saving bandwidth on the wireless media
through blocking protocols that are typically used in the customer's
LAN but are not relevant for other customers (e.g. NetBios that is used
by Microsoft Network Neighborhood). Enabling this feature blocks
Ethernet broadcasts and multicasts (the I/G bit at the destination
address is set to 1).
The Ethernet Broadcasting Filtering menu allows viewing and setting the
following parameters:
The default value is 4.
Valid values are 0-255.
The default value is 0.
The precedence in the ToS field is higher than the value of
the ToS Precedence Threshold parameter (applicable to both
tagged and untagged frames).
The VLAN Priority field in a tagged frame (hybrid or trunk
link) is higher than the value of the VLAN Priority Threshold
parameter.
All other packets received from the Ethernet port will be
routed to the Low queue.
Valid values are 0 to 7.
The default value is 3.
BreezeACCESS Version 4.3 System Manual
2-65