[nsd-users] startup race leading to NOT IMPL on AXFR?

Anand Buddhdev anandb at ripe.net
Thu Mar 9 12:03:57 UTC 2017

On 09/03/2017 12:50, Miek Gieben wrote:

> NOTIMPL when doing an IXFR? I thought the proper reponse was just to send
> an AXFR at that point. At least RFC 1995 Section 4 says this. Has this been
> updated by a more recent doc?

If the master doesn't support IXFR and force-feeds the slave with a full
AXFR, then the slave has choice. Instead, if the master sends NOTIMPL,
then the slave can choose to try another master first, for example. I'm
guessing this was the thinking behind the implementation.


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