Source: ZENworks Server Management; Management and Monitoring Services; MIB Compiler
Explanation: The OPTIONAL keyword signifies that the preceding term in the INDEX clause is not mandatory. It must be the last term in the clause and must be preceded by an INTEGER only.
Possible Cause: The OPTIONAL keyword is not the last term in the INDEX clause.
Action: Ensure that the keyword is the last term in the clause.
Possible Cause: The OPTIONAL keyword is preceded by a type other than INTEGER.
Action: Ensure that the term preceding the OPTIONAL keyword is INTEGER. Delete any invalid non-white-space characters (characters other than the white space characters such as a tab or space).