Re: identity persistence and comparison issues

Erik Nordmark wrote:
>>Now, the initiator may not need to have such a stable identifier, since 
>>the initiator does not receive communications. what the initiator needs 
>>is an identifier that is stable during the communication lifetime so, 
>>if the locator change, the identifier is maintained so it is the 
>>communication.
> 
> I agree in principle, but I'm concerned this is a theoretical
> observation because I don't think we can build systems that
> know what the lifetime of the communication is.

We do know. The lifetime is unlimited. A TCP connection can stay up as 
long as the two endpoints stay up.

The identifier needs to be stable at the endpoints as long as the 
endpoints care - which is why I like how HIP negotiates these labels, 
and maintains the mapping at the endpoints. The endpoints are the only 
place that can or should know about whether they change.

Joe

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