Modifying class of service
You can define the transmission priority and paths between systems with entries in a class of service (COS) table.
About this task
Each entry in the table is associated with a list of routes to be used with a particular class. For example, you might want to place interactive sessions on a faster route than a batch job.
Procedure
To specify a class of service for a specific mode:
Use the COS option of the MODEENT macro.
When
you specify a name of a COS entry in the mode description, you select
the list of routes that you want to be used for the session. When VTAM® establishes the session, it
chooses the first available route in the list of routes that you tell
it to use for that class.
If you do not specify a COS name, the mode gets the default list of routes from VTAM.