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Chapter 4 - Operation and Administration
retransmissions has reached a maximum predefined number, which is
determined by the Number of HW Retries parameter, the frame is dropped.
Each packet to be transmitted to the wireless link is transferred to one of three
queues: Low, Medium and High. Packets in the High queue have the highest
priority for transmission, and those in the Low queue have the lowest priority. The
packets in the High queue will be transmitted first. When this queue is emptied,
the packets in the Medium queue will be sent. Finally, when both the High and
Medium queues are empty, the packets in the Low queue will be sent.
Data packets are routed to either the High or Low queue, according to the queue
selected for them before the MIR mechanism (for more information see
Section
Broadcasts/multicasts are routed to the Medium queue.
Control and wireless management frames generated in the unit are routed to the
High queue.
Any frame coming from the Ethernet port, which is meant to reach another
BreezeACCESS unit, whose MAC address is present in the Association database,
via the wireless port (as opposed to messages intended for stations behind other
BreezeACCESS units), is sent to the High queue, regardless of the priority
configuration.
The Wireless Link Counters include the following statistics:
Total transmitted frames to wireless: The number of frames transmitted to
the wireless medium. The total includes one count for each successfully
transmitted unicast frame (excluding retransmissions), and the number of
transmitted multicast and broadcast frames, including control and wireless
management frames. In the AU, there are also separate counters for the
following:
»
»
Total Transmitted Unicasts: The number of unicast frames successfully
transmitted to the wireless medium, excluding retransmissions. This count is
useful for calculating the rates of retransmissions or dropped frames, as only
unicast frames are retransmitted if not acknowledged.
BreezeACCESS EZ AU-EZ
4.2.6.6.3).
Beacons
Management and Other Data frames, including successfully transmitted
unicast frames and multicast/broadcast data frames (excluding
retransmissions, excluding Beacons)
58
Menus and Parameters
System Manual
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