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C.1.2 NMD - Network management data message

One system creates an unsolicited update (UU) Network Management Data message (NMD) to transmit network management information to another system. In this case, the initiating system sends an NMD message as an unsolicited update (UU) containing network management information to a receiving system, which responds with a generic acknowledgement message (ACK).

For example, a system going down for backups (or starting up again after backups) might issue such a message to one or more applications. A system switching to another CPU or file-server may also need to use this transaction to notify other systems.

               Chapter/
NMD     Network Management Data     Appendix
MSH     Message Header        2
{
  [NCK    System Clock        C
    [{NTE}]   Notes and Comments       2
  ]
  [NST   Statistics         C
    [{NTE}]   Notes and Comments       2
  ]
  [NSC    Network Status Change       C
    [{NTE}]   Notes and Comments       2
  ]
}
               Chapter/
ACK     Generic Acknowledgement     Appendix
MSH     Message Header        2
MSA     Message Acknowledgement      2

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