The most recent service management data specified for this conceptual row in the 'xcmSvcMonServiceMgmtTable'. Usage: Conforming management agents SHALL 'reject' any SNMP Set-Request to 'xcmSvcMonServiceMgmt[Operation|Data]' while another management operation is already in progress (ie, while 'xcmSvcMonServiceMgmtInProgress' is 'true') with 'badValue' (SNMPv1) or 'inconsistentValue' (SNMPv2/v3). Usage: Conforming management stations SHALL set 'xcmSvcMonServiceMgmtOperation' (mgmt operation) and 'xcmSvcMonServiceMgmtData' (mgmt arguments) SIMULTANEOUSLY (in the same SNMP Set-Request PDU). Usage: Conformant implementations MUST encrypt passwords, keys, and other security information stored in this string object. Usage: Management strings will be formatted as specified in the 'XcmHrDevMgmtCommandDataTag' textual convention. This means that the 'TT=value:' string format will be used with all management strings. Usage: Strings that have been specified by XCMI are provided in the 'XcmSvcMonServiceMgmtData'.