On Wednesday 12 October 2011 03:43, the following was written:
> Hi,
> This is a Centos 5.5 host with one xen guest.
> About 2 weeks ago, the host randomly lost network connection. By
> this I mean I could not connect to the services on it, or ping it.
> Also was the status of the guest.
> From serial console, I connected to the host, trying to see what
> happened. No clue (any error messages) in messages or dmesg.
> ifdown/ifup the interface did not help, either. Only rebooting was my
> only choice.
> Searching through Google, I got the information that some other guys
> met similar problem, and resolved by setting stp on with the bridge
> interface.
> I set it, too. And the problem still occurs.
> Any idea what I should check now?
I am no expert but it sounds like you might be in the early stages of hardware
failure.
Next time this system stop responding check the following:
1. System interface state
2. Connected switch interface
If the switch shows down but the system shows up I wold start by replacing the
NIC on the system.
--
Regards
Robert
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