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General Statistics

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Rx and Tx statistics parameters:

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Number of dropped frames Parameter Description Receive statistics Packets The total number of received packets Bytes The sum of lengths of all good Ethernet frames received Load (kbps) The link load, Kbit/s Load (pps) The link load, packets per second Frame size (bytes) The frame size in bytes CRC errors Total frames received with a CRC error Length errors Total abnormal length frames received Discards Discards Number of dropped frames Undersize Number of received too short packets Oversize Number of received too long packets Transmit statistics Packets The total number of transmitted packets Bytes The sum of lengths of all good Ethernet frames sent Load (kbps) The link load, Kbit/s Load (pps) The link load, packets per second Frame size (bytes) The frame size in bytes Late collisions The number of times a collision is detected later than 512 bits-times into the transmission of a frame Underrun The number of times the transmitter's packet processing rate exceeded the switch capabilities Retransmit limit Packets dropped due to queue overflow

For the pseudo- radio interface information about parent interface, MTU value current status, DFS mode and load statistics is available.

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Rx and Tx statistics parameters:

Number of fragments

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Parameter Description Receive statistics Broadcast Rate Current Bitrate for broadcast and multicast frames on the BS depends on the speed of the slowest subscriber Bytes Received Number of received bytes including headers  Packets Received OK Number of correctly received packets  Fragmented Multicas frames Number of fragmented packets	Fragments

received multicast frames
Load (kbps)	The link load, Kbit/s
Load (pps)	The link load, packets per second
Frame size (bytes)	The frame size in bytes

Scattered fragmentsNumber of frames where one or several fragments were lost, the frame cannot be restoredCorrupted packetsNumber of frames with the wrong length or structure

Transmit statistics

PacketsNumber of correctly transmitted packets FragmentedNumber of fragmented packetsFragmentsNumber of fragmentsLoad (kbps)The link load, Kbit/sLoad (pps)The link load, packets per secondFrame size (bytes)The frame size in bytesDouble encapsulated packets

Number of frames with double encapsulation

Out of fragbufsNumber of errors as a result of frame assembly buffer overflow due to too many fragments (neighbors) sources

For the SVI interface information about current status, RX and TX staistics is available.

For the pseudo-radio interface information about parent interface, MTU value and load statistics is available.

For the SVI interface information about current status, RX and TX staistics is available.

By clicking the «Close» button, you return to the "Device Status" page.

By clicking the «Reset» button, you clear all counters displayed in the page.

The "Auto Refresh" option is active by default and refreshes the statistics automatically. You can disable the auto refresh.

Modulation Statistics

The "Modulation Statistics" tool displays the information about modulation types, such as receive and transmit statistics for different coding scheme. 

Please note that lower modulation is used for service traffic transmission, therefore, if such traffic prevails in the network, the counter growth for low modulations is normal.

By clicking the «Close» button, you return to the "Device Status" page.

By clicking the «Reset» button, you clear all counters displayed in the page.

The "Auto Refresh" option is active by default and refreshes the statistics automatically. You can disable the auto refresh.

Errors/Drops Statistics/SNR/EVM 

The "Errors/Drops Statistics/SNR/EVM" window displays the number of errors, retries and droped packets during transmission for each link. This tool provides information about the SNR level for each polarization of the remote and local devices, as well as rates of lost and late delivery acknowledgments.

In addition, this section displays the estimated throughput per subscriber in Mbps. The lower values show the guaranteed throughput in the worst case scenario when all subscribers are actively transmitting. The upper values display the throughput in the best scenario, when data is transmitted only by the selected subscriber.

The EVM value is measured not at the operation modulation, but at the lowest possible. In case the misoctl option is enabled and VBR is disabled on Slave, the lowest possible modulation uses a single data stream. If misoctl is turned off or VBR is turned on, both channels will be used for transmission, and the EVM parameter values will be displayed for each modulation.

By clicking the «Close» button, you return to the "Device Status" page.

By clicking the «Reset» button, you clear all counters displayed in the page.

The "Auto Refresh" option is active by default and refreshes the statistics automatically. You can disable the auto refresh.

Radio Scanner

The "Radio Scanner" tool allows to estimate the efficiency of the radio links utilization, analyzing the radio-frequency environment for the current frequency, under the current channel bandwidth, without the radio link interruption and displays the following statistics:

• Radio parameters of every source in the radio link
• Number of sources, number of packets, including the skipped ones
• Number of pulses, their average level and average number of pulses per second

The abbreviations for each node type are also displayed in the interface:

By clicking the «Close» button, you return to the "Device Status" page.By clicking the «Reset» button, you clear all counters displayed in the page.

The "Auto Refresh" option is active by default and refreshes the statistics automatically. You can disable the auto refresh.

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By clicking the «Start Test»/«Stop Test» buttons at the bottom of the page, you can start/stop the alignment test.

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• It is recommended to start antenna alignment with searching the maximum signal level on a minimal possible bitrate. Afterwards, automatic MINT mechanisms will set the most appropriate bitrate when “Autobitrate” mode is enabled.
• Input signal level (CINR) should be between 12 dB and 50 dB.
• If signal level is more than 50 dB, it is recommended to lower the amplifier power.
• If maximal signal level is less than 12, it is recommended to lower the channel width (for example: from 20 MHz to 10 MHz).
• In some cases, a signal level that is less than 12 may be enough for the radio link operation. In this case, you should be guided by parameters such as the number of retries and Error Vector Magnitude. If the number of retries is low (close to “0”) and EVM is more than 21 (Input Signal stripe is green) then the radio link is most likely, operating properly.
• Retries value should be zero or as low as possible (less than 5%).
• The top of an Input Signal stripe should be located in the black area.
• The signal quality should be good: EVM value should be more than 21.
• Input signals of the two antennas of the device should have similar Cross fading values (Input Signal stripes should be symmetrically to the value of 0 dB).

ALL All described recommendations are applicable to both ("Local" and "Remote") sections.

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Critical events like link outages or frequency swaps are marked by small red balloons on the bottom of each graph. The link down periods are marked with red fields. Move the mouse over each balloon for details:

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