em device hangs on ifconfig alias ...

[User Freebsd]

On Fri, 30 Jun 2006, Michael Vince wrote:

> The thing that have to ask is if Atanas has 100's why can't he just boot 
> Freebsd have have them all prebound to the interface at startup, why 
> would you need to add and remove them constantly by the hundreds during 
> normal server uptime?
>
> I do restart my jails now and then, but because the IPs are already 
> bound to the interface I don't have any pause issues.

In my case, I move jails around between machines for load balancing 
reasons ... so, a physical server may be up for, hell, in one case, 211 
days, but a vServer may only have been on it a few days ...

The other funny thing about the current em driver is that if you move an 
IP to it from a different server, the appropriate ARP packets aren't sent 
out to redirect the IP traffic .. recently, someone pointed me to arping, 
which has solved my problem *external* to the driver ...

I have a third machine that uses an em driver, but its an older 4.x 
kernel, and it operates perfectly ... no timeouts/hangs and sends out the 
appropriate ARP packet ... all three servers are connected to the same 
Cisco switch, with all ports configured identically, so it isn't a switch 
issue, as someone else intimated ...

----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email . scrappy at hub.org                              MSN . scrappy at hub.org
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