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List:       bind9-users
Subject:    Re: Timeout intervals
From:       gson () nominum ! com (Andreas Gustafsson)
Date:       2001-02-21 18:53:05
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Gary McAfee writes:
> On BIND 9.0.1, is there a difference between the timeout interval when a
> query is forwarded vs. when a query is sent to another name server via
> recursion?  Just to be clear here, I'm talking about timeouts in the name
> server, and not client resolver timeouts.  I see an algorithm in
> fctx_setretryinterval() that says something about waiting 2 seconds the
> first two times on each address, then back off exponentially (which looks
> like doubling each new interval) up to a max of 30 seconds and a minimum of
> the doubled round-trip time.
> 
> Does this algorithm apply to both situations (forwarding and recursion)?

Yes.

> How many times is each address attempted before giving up?

The server gives up after a fixed timeout of 90 seconds.

> Is there any difference between 9.0.1 and 9.1.0?

I don't think so.
-- 
Andreas Gustafsson, gson@nominum.com

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