This object stores the trace option string input given by the user. To enable particular trace the user has to enter the corresponding string(given below) assigned for that. And for enabling more than once traces the user has to enter the corresponding strings with SPACE delimiter between each string. For example, to enable - Init and Shutdown traces - Management traces The input string is, enable init-shut mgmt For example to disable - Init and Shutdown traces - Management traces The input string is, disable init-shut mgmt first value should be either enable or disable. The entered input string is parsed to get the trace options. And the corresponding bits of the trace options are set in fsPbbTraceOption object. enable - Enables the corresponding option. disable - Disables the corresponding option. init-shut - Init and Shutdown traces mgmt - Management traces data - Data Path traces ctrl - Control Plane traces pkt-dump - Packet Dump traces resource - Traces related to all resources except buffers all-fail - All Failure traces buf - Buffer allocation/ release traces critical - PBB Critical traces redundancy - PBB Redundancy traces - - Reserved By default critical trace is enabled.