ATM VCC

Usage: for the current VCC:-

  • Analysis only: Monitoring, and configuration of the receive connection.
  • UNI signalling: to support the Signalling behaviour.
  • Call simulator 1: to support the Data behaviour and first call simulation.
  • Call simulator 2: to support the Data behaviour and second call simulation.
  • AAL type: and relevant parameters of the panel are used.

  • AAL 5
  • AAL 1
  • AAL 3/4
  • PDU max length: for the VCC receive connection.

    Cell header: used for each ATM cell for the VCC. (transmit and receive connections)

    • GFC: Binary value. x for mask use in monitoring.
    • VPI: Decimal value.
    • VCI: Decimal value.
    • Set CLP bit
      • Yes: The CLP bit is set to 1.
      • No: The CLP bit is set to 0.

    Rate mode: (for the VCC transmit connection)

    • VBR: The attached I and L GCRA parameters will be in use.
      • Increment. Values according to ATM UNI 3.1 Generic Cell Rate Algorithm specifications, and defined in cell slots + thousands (max 16383.999).
    • UBR: see specifications.

    AAL 3/4: parameters for the current VCC, if this AAL type is used:

    • Enable CRC10 field checking: (receive connection)
      • Yes
      • No
    • Enable BASIZE checking: (receive connection)
      • Yes
      • No
    • Significant bits for MID field: (receive connection)
      • MID processing disabled
      • 1 active bits
      • ...
      • 10 active bits (1-1023)
    • MID value: (transmit and receive connections)
    • CPI value: (transmit connection)
    • Initial SN: (transmit connection)

    AAL 5: parameters for the current VCC, if this AAL type is used:

    • UU value: (transmit connection)

     


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