Local (source) and remote (destination) service access point determination

The local (source) service access points (SAPs) and remote (destination) SAPs are determined as follows:

SAP type Predefined TGs Connection network
Local SAP XCA major node SAPADDR keyword on PORT statement. Default is 4. XCA major node, SAPADDR on PORT statement.
Remote SAP Switched major node, SAPADDR keyword on PATH statement. Default is 8. Learned during connection.
Note:
  1. These SAP pairs are used in LDLC signals.
  2. For more information on SAP pairs see z/OS Communications Server: SNA Network Implementation Guide.