question about forward

[JudahXIII]

hi everyone.
i've had a question for a long time.
when i set my dns server (via bind) as "forward only" server, i set two
destination dns addresses.
now, when the first destination dns server is down, will my server still
send requests to it?
when does my server send request to the second one?
thank so much!!!!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/bind-users/attachments/20110902/fe1eb1e9/attachment.html>