WESM zl Management and Configuration Guide WT.01.28 and greater

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Wireless Network Management
Monitoring the Wireless Network
terms of packets per second, total throughput in Mbps, and average speed in Mbps.
The Web browser interface further breaks down statistics into received and transmit-
ted traffic.
The RF Status section displays statistics dealing with the status of the radio medium.
The statistics apply to all radios mapped to the WLAN:
■ Avg Station Signal (dBm)—average signal level detected for all stations associ-
ated to the WLAN
■ Avg Station Noise (dBm)—average background noise for all stations associated
to the WLAN
■ Avg Station SNR (dBm)—average SNR for all stations associated to the WLAN
In the Errors section, the Web browser interface reports the total number of error
packets in the entire WLAN:
■ Avg Number of Retries—average number of attempts radios must make to
successfully transmit a packet to stations in this WLAN
A high value (over 10 or 20 percent) may indicate excessive congestion or
interference from another wireless device.
■ % Gave Up Pkts—number of packets that the Wireless Edge Services zl Module
never successfully transmitted to a station associated to this WLAN
■ % of Undecipherable Pkts—percentage of packets in this WLAN that could not
be deciphered
A high percentage might indicate that someone is attempting to guess a static
WEP key or WPA/WPA2 PSK.
The statistics in black apply to the last 30 seconds, giving you a snapshot of current
performance. The statistics in blue show activity in the WLAN over the last hour.
Viewing a Graph of WLAN Statistics
The Wireless Edge Services zl Module can create a graph of statistics for a WLAN,
which displays how the statistics change over time.
To view this graph, follow these steps:
1. Select Network Setup > WLAN.
2. Select the Statistics tab.