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Combined handover procedure MN P-AN N-AN PAR NAR HA AAA | |HO initiation | | | | (a) | |.........>| | | | | | | |AN-AR connection establishment | (b) | | |/------------------\| | | | | |\------------------/| | | | | | | HReq | | | (c) | | | |<--------| | | | | | | HRes | | | (d) | | | |-------->| | | | | | | HAck | | | (e) | | | |<- - - - | | | | | | |forward packets | | (f) | | | |========>| | | | | | | +-----------+ | | | | | | | buffering | | | | | | | +-----------+ | | handover | | | | | | |radio-link conn. est. & AN-AR conn. activation | | (g) |/------------------\|/------------------\| | | |\------------------/|\------------------/| | | | | deliver packets | | | | (h) |<========================================| | | | | | | | BU | | (i) | | | | |------->| | | | | | | | Auth. | (j) | | | | | |<------->| | | | | | BA | | (k) | | | | |<-------| | | | deliver packets | | | | (l) |<========================================|<=======| | | | IPv6CP + RA | | | | (m) |<--------------------------------------->| | | | | | BU/BA | | | Auth. | (n) |<------------------------------------------------>|<------->| | | | | | | | |