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Re: [RRG] Why delaying initial packets matters



Bill -

Sorry for responding late...

(1)  Localized mobility support within an edge network, because the
address indirection alone tracks host mobility only at the granularity
of edge networks, not access links.

(2) Dynamic and per-host mappings between edge and transit addresses,
because the mapping for a single edge address changes when a mobile
host moves to another edge network

(3) Trust relationships between edge networks so that a mobile host's
mapping can be changed by (or based on information of) a visited edge
network

I'm okay with your first two points but the third makes an assumption
that might not be warranted. You do need a trust relationship but it
doesn't necessarily need to be between edge networks. The trust
relationship can also be from the edge networks to one or many
third-party address authorities.

You are raising an interesting point.  3rd-party authorities are
typically used for authentication.  But apart from authentication,
there needs to be a trust relationship between two edge networks based
on which one of the two can update a mapping on behalf of the other.
Having such trust be transitive through the 3rd party would be an
option, but maybe not a desirable one...

- Christian



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