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_IW Academy
_IW Academy

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Table of Contents

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titleTable - Interface Statistics
ParameterDescription
Port
  • Displays all physical and logical set interfaces 
Status
  • Displays for each interface whether it is up and running or not
Mode
  • Displays the operation mode for the GE ports:
    • 10,100 or 1000 Mbps and half or full duplex 

Packets

Rx/Tx
  • Displays the number of received and transmitted packets for each interface since the unit is operational or since the counters were last reset

Errors

Rx/Tx
  • Displays the number of received and transmitted error packets for each interface since the unit is operational or since the counters were last reset

Load (Kbps)

Rx/Tx
  • Displays the packet flow through each interface in real-time (for the system and the data traffic) expressed in Kbps

Load (pps)

Rx/Tx
  • Displays the packet flow through each interface in real-time (for the system and the data traffic) expressed in packets per second (pps)

Additional statistics about the network packet types and error types for reception/transmission are displayed by clicking on any of the interfaces:

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title Table - General radio link parameters
ParameterDescription
Wireless Link Status
  • Displays the status of the radio link which can be “Up” or “Down” 
Measured Distance
  • Displays the measured distance of the radio link in meters
  • If the remote end stats is disabled, the measured distance is only shown at the slave unit
  • Channel Width
    • Displays the channel bandwidth that is in use
    DL/UL Ratio
    • Displays actual downlink/uplink ratio
      • "Downlink" - data transmission from Master to Slave
      • "Uplink" - data transmission from Slave to Master
    Frame Period
    • Frame length
    • "Real time radio link status" - displays the following parameters of the radio link in real time for both the local and remote unit:
    Center
    Scroll Title
    titleTable - Wireless Links Statistics
    ParameterDescription
    Tx capacity
    • Displays the maximum transmission capacity expressed in Kbps for the current modulation and coding scheme; if . If the MCS changes, the Tx capacity will also change accordingly
    Tx/Rx Frequency
    • Displays the center Tx frequency expressed in MHz
    DFS status
    • DFS status information. Possible statuses:
      • "NO_INIT" - utility is not initialized
      • "DISABLED" - DFS is disabled
      • "ENABLED" - DFS is enabled
      • "FG_RADAR_SEARCH" - selected frequency scanning for radars existence
      • "FG_RSSI_SCAN" - all available frequency grid noise level scanning
      • "RADAR_FOUND" - radar found
      • "RADAR_UP" - frequency with radar is blocked for selection
      • "BG_RSSI_V" - "background" RSSI on the vertical channel
      • "BG_RSSI_H" - "background" RSSI on the horizontal channel
      • "BG_RDRDT_MAIN" - radar "background" searching on the main frequency
      • "BG_RDRDT_ANNOUNCE" - radar "background" searching on the potential frequency
      • "BG_FF_UL" - uplink frequency changing
      • "BG_FF_DL" - downlink frequency changing
    Tx/Rx Frames
    • Displays the number of transmitted and received air frames
    Rx Bad frames
    • Displays the number of air frames received with errors for which the Control Block cannot be correctly decoded
    Rx Acc FER
    • Displays the Frame Error Ratio, meaning the percentage of frame loss (air frames that cannot be decoded divided by the total number of air frames received)
    Tx parameters
    MCS
    • Displays the modulation and coding scheme that is in use at Tx side. There are 11 MCS schemes available and if the AMC is set to auto, the MCS will dynamically change its value based on the link quality (at both units - local and remote). The maximum Tx capacity varies based on the MCS in use. 
    • For example, for QAM256 7/8 (8), “QAM256” is the modulation in use, “7/8” is the coding scheme in use (for every 7 data bits encoder produces 8 bits to be sent over the air) and “(8)” represents the index of the MCS in use
    Power
    • Displays the current power level of the Tx signal for each radio chain in dBm
    Rx parameters
    MCS
    • Displays the modulation and coding scheme that is in use at Rx side. The representation is similar to that for Tx part
    CINR
    • Displays Carrier to Interference and Noise Ratio measured in downlink and expressed in dB
    • CINR can be limited either due to too low signal level or because of the interference from other radios
    • AMC algorithm makes its decisions based on the CINR value
    • Higher CINR is better
    RSSI
    • Displays the Received Signal Strength Indicator measured in downlink and expressed in dBm
    • Represents the power of the received signal as a whole (useful signal plus noise and interferences) and if it goes below the level of the sensitivity, the link will go down
    Acc TBER
    • Displays the Transport Block Error Ratio, showing the percentage of errored transport blocks
    • Each application has an acceptable air block error rate defined as a minimum requirement
    • The values are presented in the table below

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