> > I was not bringing RIFT's negative routies example as something inherently > negative. I was just pointing it out to illustrate that today's data plane > lookup does not really support "if does not match" checks. > > *[WAJ] In data plane, the device do still the “match” check, not “does not > match” check. When the router receives the PUA information, it will > install one black hole route for a short time.* >
So your idea is that you install route for unreachable prefix to /dev/null ? And how would that help connectivity restoration ? Moreover it seems that it will just also prevent any local protection to locally bypass the failed destination. Bottom line is that I agree with one problem statement. However IMHO described actions upon reception of PUA are questionable at best. Cheers, R.
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