Hi Xiaohu,

> My concern is how could the transport layer distinguish session A (Locator
> A, Identifier I, Nonce N, Destination D) from session B (Locator B,
> Identifier I, Nonce K, Destination D) once we use the trick mentioned below.

The transport layer connection lookup is keyed by (I, N, D).

Regards,
Tony


>>> "   With this proposal, transport protocols include only the
>>>    Identifier in their pseudo-header calculations, but do not
>>>    include the Locator in their pseudo-header calculations.
>>> 
>>>    To minimise the changes required within transport protocol
>>>    implementations, when this proposal is in use for a
>>>    communications session, the Locator fields are zeroed for
>>>    the purpose of transport-layer pseudo-header calculations.
>>> "
>> 
>> 
>> Since the current TCP/UDP checksum is just a straight summation, zeroing
> out
>> the bits or excluding them are functionally identical and that what you
>> propose binds us to one implementation approach unnecessarily.


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