I hope your problem won't be a regular issue and you don't see it again.
All of the servers I've installed have a few tools by default to make tests in this cases (tcpdump (wireshark if gui), iptraf, iptables/pf,netcat,sysinternals(windows),...) and have a monitoring packages (Nagios/Ntop) in other machine to obtain data. And one monitor port in our switches to plug my laptop and sniff all traffic on each vlan. I saw a lot of strange issues but if networks and systems have not tools, you only can reboot and try to obtain an answer from logs.
Best Regards,
Juan Carlos Díaz Fernández
IGN Solutions™
Director Técnico
mailto: juan.carlos.diaz@xxxxxxxxxxxxxxxxx
callto: +34638295207/+34617413903
Innova Galicia Networks Solutions SL
http://www.ign-solutions.com
Pazo de Feiras e Congresos de Lugo - Palomar s/n
27004 LUGO - Spain
callto: +34982284150 faxto: +34982284922
2010/3/7 Michael Schumacher <michael.schumacher@xxxxxxxx>
Dear Juan Carlos,
I couldn't make any further tests on that machine because I couldn't
> Are your netmask config Ok? Can you use wireshark to sniff traffic in the
> middle LANCOM <->Wireshark/tcpdump<->Xenserver and send me a trace?
install any software on that machine because of the failing network.
However, I took the opportunity and rebooted the machine last night.
Guess what, everything is up and running again.
Thanks for your assistance and sorry to the list for the disappeared
problem.
Reboot was no option through the week as this is a production machine
under heavy load.
--
Mit freundlichen Grüßen
Michael Schumacher
mailto:michael.schumacher@xxxxxxxx
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