Re: Forwarding loops with squid 2.0 RELEASE

From: Duane Wessels <>
Date: Mon, 19 Oct 1998 10:32:20 -0600

John Sloan writes:

>We have 4 caches. One is internal, and parents through the other three.
>I have it set to use all 3 external caches as a parent with cache digests,
>and this appears to be working fine.
>The other three caches used to be ICP neighbours (till I decided that the
>latency overhead was too high). I wish to try to set these up as
>cache_digest neighbours.
>I tried to do this all at once, and ran into a storm of loop errors in
>cache_log on all three external caches. I backed off quickly.
>Testing more gently this time, I set just two of the caches, mist hail to
>peer with the other two. I still got loop errors:
>1998/10/19 15:22:22| WARNING: Forwarding loop detected for
>1998/10/19 15:22:22| --> 1.0 (Squid/2.0.RELEASE), 1.0
> (Squid/2.0.RELEASE)
>1998/10/19 15:22:23| WARNING: Forwarding loop detected for
>1998/10/19 15:22:23| --> 1.0 (Squid/2.0.RELEASE), 1.0
> (Squid/2.0.RELEASE)
>Having checked the FAQ and release notes, I can confirm there are no
>never_direct directives on any of the extenal caches, and I have commented
>out all visbile_hostname and unique_hostname entries I had. Still the
>warning persists.

Try Squid-2.0.PATCH2. It has fixes for digest forwarding loop bugs.

Duane W.
Received on Mon Oct 19 1998 - 10:30:05 MDT

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