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Simultaneous Movements
Real simultaneous movement where rendezvous server is needed are outside of the scope of MOBIKE.
If we want recover from situations where link goes down along the path, we will see virtual simultaneous movements, i.e. both ends IP-addresses change at the same time (but to already known addresses).
The SGW will have fixed quite static set of IP-addresses, thus roaming host can know the IP-addresses of that SGW.
PPT Version