Alvarion BreezeNET B Release Note - Page 3

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Alvarion BreezeNET B Release Note
upgrade, this parameter is forced to the default value of 7, meaning no VLAN-based
prioritization.
•
IP ToS: IP Precedence (3-bits according to RFC791). This parameter replaces the ToS
Precedence Threshold parameter that was available in previous versions in the Bridging
menu. After version upgrade, this parameter is forced to the default value of 7, meaning no IP
Precedence based prioritization)
•
DSCP (6-bits according to RFC2474)
•
UDP and/or TCP ports. This classifier is intended primarily for prioritization of VoIP traffic,
including support for prioritization of only RTP packets or both RTP and RTCP packets.
Each one of these classifiers can be activated/deactivated. If more than one classifier is activated, the
priority of each packet will be determined by the highest priority given to it by the active classifiers.
MAC Pinpoint
The MAC Pinpoint feature enables identifying the RB or BU that is used by a certain Ethernet station to
access the wireless network. The MAC Pinpoint feature is available in BU using either SNMP or
Telnet.
Limiting Transmissions of Broadcast/Multicast Packets
The Ethernet Broadcast/Multicast Limiter option, available in both AU and SU, enables to limit the
number of broadcast and/or multicast packets that can be transmitted per second, in order to prevent
the potential flooding of the wireless media by certain ARP attacks or similar events.
In SUs, the limiter is placed after the Ethernet Broadcast Filters. For this reason, the limiter will receive
only the packets that pass through these filters. In case that the Ethernet filters of the SU are disabled,
the limiter will be applied to all relevant packets received from the Ethernet port.
When the Ethernet Broadcast/Multicast Limiter is enabled and the specified limit is reached, the unit
will send a trap. The trap will be sent periodically, informing the user how many packets were
discarded in the last period. The interval between two consecutive traps is configurable in the range
from 1 to 60 minutes.
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