Does BIND always query the other authorative nameserver if the first authorative nameserver is down or unreachable

Mon Mar 27 08:08:29 UTC 2006

On Mon, Mar 27, 2006 at 02:34:24PM +0800,
 Robert Gomezi <robertgomezi at gmail.com> wrote 
 a message of 20 lines which said:

> I would expect BIND or any other proxy caching nameserver to ask the
> other authorative nameserver for the answer.

Of course. This is the whole point of having several authoritative
nameservers.

> are there some cases (or some toolchains) where if the first
> authorative namserver is not reachable then due to timeout an
> NXDOMAIN is returned

If so, they are terribly broken.