User Manual

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Throughput – Please note that the throughput value displayed here do not refer to the radio
link capacity. Rather, it refers to the instantaneous throughput over a short time period
measured by the unit. The value here is meaningful for estimating the traffic amount if such
traffic can be sustained over some time period. Due to framing overhead, actual IP throughput
will be less.
Total Frames: Total number of aggregated RF data frames received and sent by the unit.
NOTE – Total Frames number from RF port number should not be expected to
match the Ethernet frames count. Packet framing, aggregation and QoS operations
will all affect the manner in which data is transported from Ethernet to RF port.
Data Packets: Total number of data packets prior to aggregation, on the transmit side, and
following de-aggregation, on the receive side.
Receive Errors: Total number of Errored Frames received by the local unit.
NOTE - When diagnosing link problems, it’s useful to clear the RF statistics and
allow 5-20 minutes of new data to accumulate. This will provide an accurate
picture of the current link conditions. On occasion, it may be useful to sample a
longer time period, up to 24 hours in some cases, as the influence of external
interference sources can vary across time due to usage patterns. In many situations, some
amount of errors may be expected and unavoidable.
NOTE - RF Frames which are significantly damaged can not be accurately
attributed to a paired radio and will not be counted towards receiver errors.
NOTE - Some amount of error is expected and unavoidable in most wireless link.
Retransmissions will be transparently handled by the radios and by any TCP-IP
hosts connected to the link. For evaluating link quality, the figure of interest is the
Frame Error Rate, which can be obtained by dividing the number of errored frames
by the total number of frames.
In general, a Frame Error Rate less than 10% will have little or no noticeable effect on
throughput.