Hello, We are having some discrepancies with the latencies xymon reports in it's conn tests as opposed to what we were seeing in other monitoring programs. What we're seeing is that xymon reports a much higher latency for certain hosts than what we're used to. We are using hobbitping from xymon 4.2.2 on x64, novell suse linux enterprise server 10 sp2.
We think we've tracked it down to the following:
We are testing with 3 hosts: 194.109.6.92 - www.xs4all.nl 195.130.131.39 - www.telenet.be 212.27.48.10 - www.free.fr
These are used as an example, but our real world tests with internal hosts show the same issue. Anyway, when we ping each of these hosts we don't see any issue:
% ./hobbitping 194.109.6.92 194.109.6.92 is alive (6 ms) ./hobbitping 195.130.131.39 195.130.131.39 is alive (2 ms) % ./hobbitping 212.27.48.10 212.27.48.10 is alive (16 ms)
However, as soon as we start combining hosts we see strange results: ./hobbitping 195.130.131.39 194.109.6.92 195.130.131.39 is alive (22 ms) 194.109.6.92 is alive (6 ms) ./hobbitping 195.130.131.39 194.109.6.92 212.27.48.10 195.130.131.39 is alive (44 ms) 194.109.6.92 is alive (22 ms) 212.27.48.10 is alive (16 ms)
Even multiple tests on the same host show this: % ./hobbitping 195.130.131.39 195.130.131.39 195.130.131.39 195.130.131.39 is alive (44 ms) 195.130.131.39 is alive (22 ms) 195.130.131.39 is alive (2 ms)
We've found a reference to someone who might have the same issue, but there wasn't any follow up to that: http://www.hswn.dk/hobbiton/2008/09/msg00188.html
Is anyone else seeing this issue?
thx
// nick