IBM-supplied APPN Classes of Service

Descriptions of the seven IBM-supplied APPN Classes of Service follow. These classes define seven generic types of session traffic. See APPN Class of Service (CoS) definitions (COSAPPN) for samples.

See z/OS Communications Server: SNA Network Implementation Guide for more details.

The IBM-supplied Classes of Service are shipped with the name COSAPPN in SYS1.ASAMPLIB and should be copied into SYS1.VTAMLST at VTAM® installation.

Note: The COSAPPN member is automatically activated.
See z/OS Communications Server: SNA Network Implementation Guide for more details.
#BATCH
An APPN CoS for LU-LU sessions that specifies a general batch-oriented CoS that uses low transmission priority, and for which high bandwidth and low cost are considered more important than short delay.
#BATCHSC
An APPN CoS for LU-LU sessions that specifies a general batch-oriented CoS that uses low transmission priority, and for which high bandwidth and low cost are considered more important than short delay. A minimum security level is required.
#CONNECT
An APPN CoS for LU-LU sessions that provides connectivity at medium transmission priority.

#CONNECT should not be changed.

CPSVCMG
An APPN CoS for CP-CP sessions that is used for network flows. It provides connectivity at network transmission priority.

CPSVCMG should not be changed.

#INTER
An APPN CoS for LU-LU sessions that specifies a general, interactive Class of Service that uses high transmission priority, and for which short delay is considered more important than high bandwidth and lost cost.
#INTERSC
An APPN CoS for a LU-LU session that specifies a general, interactive CoS that uses high transmission priority, and for which short delay is considered more important than high bandwidth and lost cost. A minimal security level is required.
SNASVCMG
An APPN CoS for LU-LU CNOS sessions that provides connectivity at network transmission priority.

SNASVCMG should not be changed.