+1 with Robert. So you expect the following RIB state after PUA has been advertised: 10.0.0.1 - drop 10/24 - forward
Unless there’s a recursively discarded next-hop (ala RTBH ) - how do you envision it? Regards, Jeff > On Nov 16, 2020, at 00:25, Robert Raszuk <rob...@raszuk.net> wrote: > > >> 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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