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SPD Cache in 2401bis



Is it possible to remove all the discussion on SPD-cache out of
RFC2401bis and into an informational RFC?

The discussion of the cache within the text even pre-faced
with the caveat given that the cache is optional detracts
from the clarity of the text IMHO. 

This will leave the SPD as ordered and will also take 
all discussion of the decorrelation of the SPD out of 2401bis
as well.

The caching idea has merit by itself and can be either put
in an appendix altogether or removed and put into an informational
RFC.

As far speed of implementation is concerned, there are widely
available TCAMs
that can do millions of look-ups per second in an ordered database
using a 5-tuple or a 6-tuple lookup.
 
Regards,

Bora