The device management in progress status associated with
this conceptual row in 'xcmHrDevMgmtTable'.
Usage: Conforming management agents SHALL 'reject' any
SNMP Set-Request to 'xcmHrDevMgmtCommand[Request|Data]'
while another management operation is already in progress
(ie, while 'xcmHrDevMgmtCommandInProgress' is 'true'),
with 'badValue' (SNMPv1) or 'inconsistentValue' (SNMPv2/v3).