With the arrangement as described above, it is possible to resolve a race condition between a PMIPv6 binding by {HEAD ~ a PBU message} of PMIPv6 and a CMIPv6 binding by a BU message of {TAIL ~ CMIPv6} 
With the arrangement as described above , it is possible to resolve a race condition between a PMIPv6 binding by { HEAD ~ a PBU message } of PMIPv6 and a CMIPv6 binding by a BU message of { TAIL ~ CMIPv6 }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL