Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 824)

812 Brocade Mobility RFS Controller System Reference Guide
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FIGURE 44 Wireless Controller - Radio RF Statistics screen
The RF Statistics screen provides the following information:
5. Select Traffic Statistics from the expanded Radios menu.
Radio Displays the name assigned to each listed radio. Each radio name displays as a link that can be selected
to display radio information in greater detail.
Signal Displays the power of each listed radio signals in dBm.
SNR Displays the signal to noise ratio (SNR) of each listed radio.
SNR is a measure that compares the level of a desired signal to the level of background noise. It is
defined as the ratio of signal power to the noise power. A ratio higher than 1:1 indicates more signal
than noise.
Tx Physical Layer Rate Displays the data transmit rate for each radio’s physical layer. The rate is displayed in Mbps.
Rx Physical Layer Rate Displays the data receive rate for each radio’s physical layer. The rate is displayed in Mbps.
Avg Retry Rate Displays the average number of retries for each radio.
Error Rate Displays the average number of retries per packet. A high number indicates possible network or
hardware problems.
Quality Index Displays the client’s RF quality. The RF quality index is the overall effectiveness of the RF environment,
as a percentage of the connect rate in both directions as well as the retry rate and the error rate. RF
quality index value can be interpreted as:
•
0 – 20 - very poor quality
•
20 – 40 - poor quality
•
40 – 60 - average quality
•
60 – 100 - good quality
Refresh Select Refresh to update the statistics counters to their latest values.