Protocol: ISO 8073 / TP TP PCI / Überblick
PDU Part: Fixed Part
Field: reason
Length: 1 byte
Contents: reason for connection release.
Defines the reason for disconnecting the transport connection. This field shall take one of the following values:
The following values may be used for classes 1 to 4:
1) 128 + 0: Normal disconnect initiated by session entity
2) 128 + 1: Remote transport entity congestion at connect
request time
3) 128 + 2: Connection negotiation failed [i.e. proposed
class(es) not supported]
4) 128 + 3: Duplicate source reference detected for the same pair of NSAPs.
5) 128 + 4: Mismatched references
6) 128 + 5: Protocol error
7) 128 + 6: Not used
8) 128 + 7: Reference overflow
9) 128 + 8: Connection request refused on this network connection
10) 128 + 9: Not used.
11) 128 + 10: Header or parameter length invalid.
The following values can be used for all classes:
12) 0: Reason not specified
13) 1: Congestion at TSAP
14) 2: Session entity not attached to TSAP
15) 3: Address unknown