VERIFY

Read syntax diagramSkip visual syntax diagram
   .-VERIFY--=--NONE---------.   
>>-+-------------------------+---------------------------------><
   |            .-NONE-----. |   
   '-VERIFY--=--+----------+-'   
                +-OPTIONAL-+     
                '-REQUIRED-'     

Specifies whether VTAM® performs session-level LU-LU verification during activation of LU-LU 6.2 sessions. The related SECLVL options specify the type of verification. If you do not code SECLVL, VTAM attempts to use the enhanced protocol if VERIFY=OPTIONAL or VERIFY=REQUIRED is specified, but will accept basic protocol.

If you code VERIFY=OPTIONAL or VERIFY=REQUIRED, a security management product, such as RACF®* 1.9 or later, must be installed and active, and a profile for the LU needs to be in the security management product's database. With RACF 1.9, the APPCLU class needs to be active and a profile of the LU needs to be in the APPCLU class; if not, the OPEN ACB will fail. If the application specifies PARMS=(NQNAMES=YES) on the ACB, the profile for the LU must include the remote partner LU's network identifier. See z/OS Communications Server: SNA Programmer's LU 6.2 Guide for more information.
VERIFY=NONE
Specifies that no verification of the partner LU’s identity takes place during session activation.

Note that a parameter conflict results if you code SECLVL on the same application program major node as VERIFY=NONE.

VERIFY=OPTIONAL
Specifies that identity verification is performed for certain partner LUs during session activation. Determination for which partner LUs the LU-LU verification is performed depends on whether there is a password defined for the LU-LU pair in the installed security manager product. See z/OS Communications Server: SNA Network Implementation Guide for information about how VTAM determines when to perform LU-LU verification.
VERIFY=REQUIRED
Specifies that VTAM verifies the identity of all partner LUs during activation of sessions between LU 6.2 applications. Every partner LU must have an LU-LU password defined. Any partner LUs that do not have an LU-LU password defined cannot establish LU 6.2 sessions with this application program.