Subarea class-of-service mapping table

A class of service specifies a set of performance characteristics used in routing data between two subareas. To define subarea classes of service, create a class-of-service (COS) table with entries containing lists of routes grouped together based on characteristics such as security, transmission priority, and bandwidth.

VTAM® does not provide a default subarea COS table. Any user-specified COS table for routes entirely contained within the same network must be named ISTSDCOS. For information about COS tables for interconnected networks, see the z/OS Communications Server: SNA Network Implementation Guide.

A sample subarea COS table for routes contained entirely within a single network follows. The COSTAB macroinstruction begins the COS table. Each COS macroinstruction defines a class-of-service entry. The VR operand specifies one or more ordered pairs of numbers, where the first number is a virtual route number and the second number is a transmission priority indicator number. The SUBSTUT operand (which is defaulted in each of the COS entries to NO) indicates whether this entry will be substituted when VTAM does not recognize the COS name that is specified. Only one entry in the COS table is allowed to specify SUBSTUT=YES.

The COS entry named ISTVTCOS specifies the routes used for SSCP sessions (SSCP-SSCP, SSCP-PU, and SSCP-LU).

The unnamed COS entry is used when either of the following are true:

No class-of-service name is obtained from the logon mode entry for an LU-LU session
No ISTVTCOS entry exists in the COS table, and an SSCP session has been requested.

You need not define a COS table if the only COS names to be used are ISTVTCOS and the unnamed class of service; VTAM uses its own class-of-service defaults.

For more information about subarea class-of-service tables generally, see the z/OS Communications Server: SNA Network Implementation Guide and the z/OS Communications Server: SNA Resource Definition Reference.

ISTSDCOS COSTAB
COS1     COS   VR=((0,1),(1,1),(2,1),(3,1),(4,1),(5,1))
*
COS2     COS   VR=((0,1),(2,1),(1,1),(3,1),(4,1),(5,1))
*
COS3     COS   VR=((0,1),(3,1),(2,1),(1,1),(4,1),(5,1))
*
COS4     COS   VR=((0,1),(4,1),(2,1),(3,1),(1,1),(5,1))
*
COS5     COS   VR=((0,1),(5,1),(2,1),(3,1),(4,1),(1,1))
*
COS6     COS   VR=((1,1),(0,1),(2,1),(3,1),(4,1),(5,1))
*
COS7     COS   VR=((1,1),(2,1),(0,1),(3,1),(4,1),(5,1))
*
COS8     COS   VR=((1,1),(3,1),(2,1),(0,1),(4,1),(5,1))
*
COS9     COS   VR=((1,1),(4,1),(2,1),(3,1),(0,1),(5,1))
*
COS10    COS   VR=((1,1),(5,1),(2,1),(3,1),(4,1),(0,1))
*
COS11    COS   VR=((2,1),(0,1),(1,1),(3,1),(4,1),(5,1))
*
COS12    COS   VR=((2,1),(1,1),(0,1),(3,1),(4,1),(5,1))
*
COS13    COS   VR=((2,1),(3,1),(0,1),(1,1),(4,1),(5,1))
*
COS14    COS   VR=((2,1),(4,1),(0,1),(3,1),(1,1),(5,1))
*
COS15    COS   VR=((2,1),(5,1),(0,1),(3,1),(4,1),(1,1))
*
COS16    COS   VR=((3,1),(0,1),(2,1),(1,1),(4,1),(5,1))
*
COS17    COS   VR=((3,1),(1,1),(2,1),(0,1),(4,1),(5,1))
*
COS18    COS   VR=((3,1),(2,1),(1,1),(0,1),(4,1),(5,1))
*
COS19    COS   VR=((3,1),(4,1),(2,1),(0,1),(1,1),(5,1))
*
COS20    COS   VR=((3,1),(5,1),(2,1),(0,1),(4,1),(1,1))
*
COS21    COS   VR=((4,1),(0,1),(2,1),(3,1),(1,1),(5,1))
*
COS22    COS   VR=((4,1),(1,1),(2,1),(3,1),(0,1),(5,1))
*
COS23    COS   VR=((4,1),(2,1),(1,1),(3,1),(0,1),(5,1))
*
COS24    COS   VR=((4,1),(3,1),(2,1),(1,1),(0,1),(5,1))
*
COS25    COS   VR=((4,1),(5,1),(2,1),(3,1),(0,1),(1,1))
*
COS26    COS   VR=((5,1),(0,1),(2,1),(3,1),(4,1),(1,1))
*
COS27    COS   VR=((5,1),(1,1),(2,1),(3,1),(4,1),(0,1))
*
COS28    COS   VR=((5,1),(2,1),(1,1),(3,1),(4,1),(0,1))
*
COS29    COS   VR=((5,1),(3,1),(2,1),(1,1),(0,1),(0,1))
*
COS30    COS   VR=((5,1),(4,1),(2,1),(3,1),(1,1),(0,1))
*
COS31    COS   VR=((0,2),(1,2),(2,2),(3,2),(4,2),(5,2))
*
COS32    COS   VR=((0,2),(2,2),(1,2),(3,2),(4,2),(5,2))
*
COS97    COS   VR=((0,2),(3,2),(1,2),(2,2),(4,2),(5,2))
*
MINCOS1  COS   VR=((3,2),(0,2),(1,2),(2,2),(4,2),(5,2))
*
MINCOS2  COS   VR=((3,2),(1,2),(0,2),(2,2),(4,2),(5,2))
*
MINCOS3  COS   VR=((3,2),(2,2),(0,2),(1,2),(4,2),(5,2))
*
BTBCOS1  COS   VR=((4,2),(0,2),(1,2),(2,2),(3,2),(5,2))
*
BTBCOS2  COS   VR=((4,2),(1,2),(0,2),(2,2),(3,2),(5,2))
*
BTBCOS3  COS   VR=((4,2),(2,2),(0,2),(1,2),(3,2),(5,2))
*
SHR3COS1 COS   VR=((5,2),(0,2),(1,2),(2,2),(3,2),(4,2))
*
SHR3COS2 COS   VR=((5,2),(1,2),(0,2),(2,2),(3,2),(4,2))
*
SHR3COS3 COS   VR=((5,2),(2,2),(0,2),(1,2),(3,2),(4,2))
*
ROUTECOS COS   VR=((7,0))
*
         COS   VR=((7,2),(0,2),(1,2),(2,2),(3,2),(4,2))
*
ISTVTCOS COS   VR=((0,0),(1,0),(2,0),(3,0),(4,0),(5,0),(6,0))
*
         COSEND