[Users] Re: Hosts not responding, kinda urgent

[Gregor at HostGIS]

> Any ideas as to what could have caused this "outage" in the first place, 
> and why sending a ping would have fixed it?

I can supply some further info, which may be useful.

* The bonding driver is in use, slaving eth0 and eth1 into bond0.

* There are 2 switches. eth0 goes into one and eth1 into the other. The 
two switches have a cross-connect. The Internet uplink is on one of the 
two switches.

Perhaps there's some ARP-related issue happening between the bonding and 
the switches?

* During the time of the outage, "arping" to the IP address continued 
working. Then again, this was probably proxy ARP from the HN.

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