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Selecting an Address How do we know there is a problem? The address went away (certain) DPD failed (certain…but might be a transient problem) Lack of TCP progress, ICMP, … (hmm...) Picking another pair Existing protocols: SCTP, STUN/ICE Multi6, hip, and mobike looking at this too Probable that the solutions need to be integrated relatively closely to what is being done, e.g., SCTP or IKEv2 |