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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 > Chilton, DIDCOT, Oxon, OX11 0QX, UK Email: [log in to unmask] > The contents of this email are sent in confidence for the use of the > intended recipient only. If you are not one of the intended recipients do > not take action on it or show it to anyone else, but return this email to > the sender and delete your copy of it. > --