User's Manual

Chapter 4 - Operation and Administration
BreezeNET B System Manual
4-24
Wireless Link Counters
The unit submits data frames received from the Ethernet port to the
internal bridge, as well as self generated control and wireless
management frames. After a data frame is transmitted, the unit waits
for an acknowledgement (ACK) message from the receiving unit. Some
control and wireless management frames are not acknowledged. If an
ACK is not received after a predefined time, which is determined by the
Maximum Link distance parameter, the unit retransmits the frame
until an ACK is received. If an ACK is not received before the number of
retransmissions has reached a maximum predefined number, which is
determined by the Number of HW Retries and Number of SW Retries
parameters, the frame is dropped.
The Wireless Link Counters include the following statistics:
 Total transmitted frames to wireless: The number of frames
transmitted to the wireless media. The total includes one count for
each successfully transmitted frame (excluding retransmissions),
and the number of transmitted control and wireless management
frames. In the BU, there are also separate counters for the following:
¾ Beacons
¾ Data and Other Management frames, including successfully
transmitted unicast frames and multicast/broadcast data
frames (excluding retransmissions, excluding Beacons in BU)
 Total submitted frames (bridge): The total number of data frames
submitted to the internal bridge for transmission to the wireless
media. The count does not include control and wireless
management frames, or retransmissions. There are also separate
counts for each priority queue to which the frames were routed,
which are Low, Mid and High (currently the High queue is not used
for data frames).
 Frames dropped (too many retries): The number of dropped
frames, which are the frames unsuccessfully retransmitted until the
maximum permitted number of retransmissions without being
acknowledged. This count includes dropped data frames as well as
dropped control and wireless management frames.
 Total retransmitted frames: The total number of retransmissions,
including all unsuccessful transmissions and retransmissions.