Menus and Parameters

„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.

4.2.5.1.2WLAN 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 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/CIR mechanism (for more information see section 4.2.6.6.3).

Broadcasts/multicasts are routed to the Medium queue (applicable only for AU).

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 VL unit via the wireless port (as opposed to messages intended for stations behind other BreezeACCESS VL 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:

‘ Beacons (AU only)

Operation and Administration

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Alvarion SW VERSION 5.1 system manual Wlan Counters