Dashboard
This section is intended to provide the main information about the wireless unit operation.
The Dashboard displays a read-only summary of the current link status information, local and remote device signal strength, capacity , current values of the basic configuration settings and Ethernet network status.
Device status
CPU load
Displays the load percentage of the CPU.
RAM usage
Displays the usage percentage of the random-access memory.
Device uptime
The device operating time since the last reboot.
Firmware version
The firmware version uploaded to the device.
Wired interface
In the "Wired interface status" tab, the wired interface status can be monitored, as well as media type, duplex mode and physical interface MAC-address.
Current interface load is displayed at the charts for both directions.
The wired interface statistic is available on the right side.
CRC errors (FCS)
Packets dropped due to checksum mismatch. The possible reasons for the error counter increasement are described in the "Troubleshooting" article.
Oversize packets
Packets larger than 9600 bytes.
Undresize packets (runt)
Packets less than 64 bytes in size.
Wireless link status
The left part of the section contains basic information about link status.
Radio interface status
Administrative interface status set in the "Switch" section.
Link status
Wireless connection state.
Link ID
Wireless link can be established only with devices which have the same link ID.
Link uptime
The link operating time since the last outage.
Remote device
Device name set at the remote side.
Center frequency
The downlink and uplink center frequency value set in the "Radio" section manually or by the automatic frequency selection mechanism.
Channel width
The channel width value set in the "Radio" settings.
The right part contains real-time parameters values for local and remote device.
TX parameters:
Tx power, dBm - transmit output power level for local and remote device. Automatic or manual if "Automatic transmit power control" is turned off.
MCS - selected modulation coding scheme. Automatic or manual if "Automatic modulation control" is turned off.
Throughput, Mbps - maximal available throughput at transmitter of local and remote device for selected MCS.
Frames - frames amount transmitted since the last reboot.
RX parameters display values for both polarization:
RSSI, dBm - the received signal level. Available values:
-90...-80 dBm - close to the receiver sensitivity level, only the lowest modulations are available.
-80...-60 dBm - average input range.
-60...-40 dBm - the recommended range for achieving best performance.
>-40 dBm - input signal level is too high.
EVM, dBm - Error vector magnitude is an indicator of the measured input signal quality, telling how far are the received constellation symbols compared to the ideal symbols of the constellation. The parameter value must be as high as possible in absolute value. The recommended level should be less than -21 dB.
Link statistic
The link statistics window can be displayed by clicking "Statistics" button.
The "Link Availability" section displays the following information:
The overall wireless link availability since the last device reboot, the number of wireless outages when the connection was unavailable.
Availability statistics for each modulation, for downlink and uplink streams.
The "MCS Usage" section displays amount of packets being transmitted on each modulation (bitrate) for downlink and uplink streams since the last reboot.
Wired link status PRF
This section contains information about Pseudo Radio Interface status.
The top part describes prf-interface name, id and role, and the physical parent interface MAC-address. The bottom part describes parameters of joined interfaces (listed on the right side) and link uptime.
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