Defines an entry in the tnOamTrCtlTable. The first index element, tnOamTrCtlOwnerIndex, is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and allows an management application to identify its entries. The second index, tnOamTrCtlTestIndex (also an SnmpAdminString), enables the same management application to have multiple requests outstanding.