Hi Nick,
>> Overall, then, it is desirable to remove overlapping routes from the
global routing table where possible.
People inject prefixes into the DFZ for specific reasons. If they are
pruned by some upstream providers but not others, then the traffic
engineering model is broken because you can no longer depend on
more-specifics having visibility around the dfz. Or am I reading this
incorrectly?
You are very correct. In fact there is documented prior attempt to only
remove more specifics where they do not matter any longer for routing.
The key is to adjust the removal/suppression location to the dynamic
topology of the inter-network.
http://www.watersprings.org/pub/id/draft-marques-idr-aggregate-00.txt
Otherwise I think we can do more harm then good.
Best,
R.
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