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DNS Anycast blackhole DNS traffic
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06-22-2020 09:59 PM
2141     1
Issue:
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.
Solution:
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?
DNS flapping issue
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12-11-2023 05:52 AM
2142     1
the external DNS services is flapping ... which is effecting for services