{HEAD ~ The system} 12, wherein, {TAIL ~ the managed device} comprises: a second UDP transport module and a second management module; wherein, 
{ HEAD ~ The system } 12 , wherein , { TAIL ~ the managed device } comprises : a second UDP transport module and a second management module ; wherein ,
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH