| macroinstructions: | MODEENT |
| dependencies: | subarea only |
Specifies the name of the Class of Service to be used for a session that uses this logon mode. It should be a 1–8 character name. If COS is omitted, 8 blanks will be stored into the COS field in the mode entry. This blank name is the default COS.
Note: Because CP-CP session paths can include subarea VRs,
it is strongly recommended that you specify an appropriate COS=subarea_cos_name in
your logon mode tables (including the CPSVCMG and CPSVRMGR logon mode
table entries in the IBM-supplied logon mode table, ISTINCLM). Otherwise,
a blank COS name is used to determine the subarea VR and transmission
priority that will be used for the VR portion of the CP-CP session
path.