Hi,
After yesterday's YouTube/Pakistan Telecom debacle, I was thinking,
not for the first time, that the longest match first rule is more
trouble than it's worth.
I think it would probably be possible to get rid of it, although that
would be a it tricky. The only place you really need overlapping
prefixes in the table is your own BGP aggregate vs internal more
specifics. But that should be solvable.
Question for the hardware people: would this help with FIB lookups?
It would certainly end this whole deaggregation for traffic
engineering business. Although if not done carefully it could mean
that everything goes to maximum deaggregation at once, which wouldn't
be good. The right way to do it would be to have a fixed prefix length
for parts of the address space. This would work especially well in IPv6.
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