Alvarion BreezeACCESS EZ AU-EZ, System Manual

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Chapter 4 - Operation and Administration Menus and Parameters
BreezeACCESS EZ AU-EZ 57 System Manual
4.2.5.1 Traffic Statistics
The traffic statistics are used to monitor, interpret and analyze the performance of
the wired and wireless links. The counters display statistics relating to wireless
link and Ethernet frames. The Traffic Statistics menu includes the following
options:

Display Counters: Select this option to display the current value of the
Ethernet and wireless link (WLAN) counters.

Reset Counters: Select this option to reset the counters.
4.2.5.1.1 Ethernet Counters
The unit receives Ethernet frames from its Ethernet port and forwards the frames
to its internal bridge, which determines whether each frame should be
transmitted to the wireless medium. Frames discarded by the unit's hardware
filter are not counted by the Ethernet counters. The maximum length of an
Ethernet packet that can be accepted from or transmitted to the Ethernet port
(excluding CRC) is 1600 bytes, including VLAN(s) for tagged packets.
The unit transmits valid data frames received from the wireless medium to the
Ethernet port, as well as internally generated frames, such as responses to
management queries and pings received via the Ethernet port.
The Ethernet Counters include the following statistics:

Total received frames via Ethernet: The total number of frames received from
the Ethernet port. This counter includes both invalid frames (with errors) and
valid frames (without errors).

Transmitted wireless to Ethernet: The number of frames transmitted by the
unit to the Ethernet port. These are generally frames received from the
wireless side, but also include frames generated by the unit itself.
4.2.5.1.2 WLAN 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
unicast data frame is transmitted, the unit waits for an acknowledgement (ACK)
message from the receiving unit. Some control and wireless management frames,
as well as broadcast and multicast frames sent to more than one unit, are not
acknowledged. If an ACK is not received after a predefined time, which is
determined by the
Maximum Cell distance parameter, the unit retransmits the
frame until an ACK is received. If an ACK is not received before the number of