DNS Anycast blackhole DNS traffic

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729     1


DNS Anycast with BFD disabled cause DNS service to be non-responsive during restart. which leads to the black-hole of DNS traffic. and if there are any ZRQ happening at the same time it increases the downtime.




one fix is to enable BFD, but that will cause BGP to flap during every DNS service restart.


Is there a better way to fix it?

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