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Disconnect Indication

Direction

MTP 2 -> Layer 3

Description

The DISCONNECT INDICATION notifies the application (layer 3) that a link has been disconnected.

Format

Service User ID Application's reference number for this link (from BIND REQUEST)

Reason The reason for the disconnect. Possible values are:

   0  Layer Manager request 
   1  Intolerably high signal unit error 
      rate
   2  Excessive length of realignment period
   3  Excessive delay of acknowledgments
   4  Failure of signaling terminal 
      equipment
   5  Two out of three unreasonable backward
      sequence numbers
   6  Two out of three unreasonable forward
      indicator bits
   7  Reception of consecutive LSSUs
      indicating out of alignment, out of
      service, normal or emergency terminal
      status
   8  Excessive periods of layer 2 
      congestion


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