This is a simple idea on how to scale mapping. However personally I
feel the design is too incomplete to be considered a serious input to
RRG. Take the following 2 issues as example:
First, in this 2-phase scheme, an AS is essentially the unit of
destinations (i.e. sending ITRs find out destination AS D, then send
data to one of of D's ETR). This does not offer much choice for
traffic engineering.
Second, there is no consideration whatsoever on failure detection and
handling.
Lixia
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