Hi Trevor,
thanks for your monitoring observations,
I'll try to investigate local network behaviour!
cheers
Gergely
On Mon, 13 Oct 2003, Daniels, T (Trevor) wrote:
> Further to the various GOC monitoring reports, I've investigated further the
> high rate of failures of my authentication test at Budapest's CE,
> grid109.kfki.hu.
>
> Every 10 mins I have been sending out 10 pings and logging a failure if 10
> packets are not received back. This test fails to this host much more
> frequently than it does to others. In the 5-day period to 09:00 this
> morning there were 58 occasions when this test failed, and only 10 occasions
> when the same test failed to Budapest's RB, grid111.kfki.hu.
>
> For comparison, over the same period there were 3 such failures of the same
> test to both of CERN's CEs, adc0015.cern.ch and adc0018.cern.ch, and none to
> Taipei's.
>
> This suggests the problem is with the host or its immediate network
> connection rather than with the intervening network, and that it is nothing
> to do with LCG software, since this is unlikely to affect ping response.
>
> HTH
>
> Trevor
> .lf n25
>
> Dr Trevor Daniels
> c/o CCLRC eSC Department Phone: (+44)|(0) 1235 778093
> Rutherford Appleton Laboratory Fax: (+44)|(0) 1235 446626
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