[Users] VE loses connectivity

[Gregor at HostGIS]

> in a period of time some of my VE's (both on subnet1 and 
> subnet2) loses connections.

I've had a long-standing problem, as well, with HNs and VPSs randomly 
losing connectivity for seconds at a time. It's been enough to set off 
Nagios, to delay SMTP, etc.

My workaround (I won't call it a "solution") was to write a simple 
"gratuitous ARP daemon" or "garpd" This works on the same principle as 
you discovered: if I retransmit ARP, it solves the problem for a little 
while.

If you want the garpd code, assuming the folks here can't provide a real 
fix, I'm glad to post it to the list and/or wiki.

-- 
HostGIS, Open Source solutions for the global GIS community
Greg Allensworth - SysAdmin, Programmer, GIS Person, Security
Network+   Server+   A+   Security+