Interoperability Testing

Reason and Refuse Codes

Session Refuse Codes

Table 1-8 describes the meanings defined by ISO 8327 for the reason codes carried on a negative Session connect confirmation. These values are logged after S_CONNECT_Resp (Negative) message, and on return from the ses_connect_rf() library call.

Table 1-8

Session Refuse Codes

 

 

 

 

Code

Meaning

 

 

 

 

0

Reason not specified.

 

 

 

 

1

Rejection by called Session service user due to

 

 

temporary congestion.

 

 

 

 

2

Rejection by called Session service user. The

 

 

following octets may be used for up to 512 octets of

 

 

user data.

 

 

 

 

81

SSAP identifier unknown.

 

 

 

 

82

Session service user not attached to SSAP.

 

 

 

 

83

SBM congestion at connect time.

 

 

 

 

84

Proposed protocol versions not supported.

 

 

 

Chapter 1

51