Only 'start' and 'abort' are writable values; 'success', 'failure' and 'inProgress' are readeable (or returned) values. Writing 'start' to this object to initiate the trace route operation. snRtIpTraceRouteDestAddr must have been init- ialized before 'start' is writen. This object will return 'inProgress' after trace route operation has started. During the 'inProgress' state, writing 'abort' to this object will stop the current trace route operation. If the destination address is reached, this object returned 'success'. snRtIpTraceRouteResultTable contains the routes (and the target address) to reach the destination address. If the destination address does not reach, timeout, or ending TTL reached, 'failure' is returned.