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Background documentationNI Control Messages Locate this document in the navigation structure


Control messages are used for handshakes and other communication, located in the NI layer. These messages are based on the same structure as the NI Error Information. None zero operation code indicates a message. The following control messages are known in NI version 36:

NI control messages
  • NI version request

  • NI version response

  • NI send handle (4 messages)

SNC control messages:
  • SNC request from client side

  • SNC request from server side

  • SNC handshake completed