[ovs-discuss] Newbie and q. about implementing firewall-rules ala iptables with openflow for qemu-VMs

[Ben Pfaff]

On Fri, May 04, 2012 at 09:25:16PM +0200, Oliver Francke wrote:
> Am 04.05.2012 um 21:13 schrieb Ben Pfaff:
> 
> > On Fri, May 04, 2012 at 09:11:27PM +0200, Oliver Francke wrote:
> >> Am 04.05.2012 um 20:57 schrieb Ben Pfaff:
> >> 
> >>> On Fri, May 04, 2012 at 08:42:25PM +0200, Oliver Francke wrote:
> >>>> Does one have any experiences with workload for ca. 150 VMs, what
> >>>> das ovs-vswitchd say to this, with at least one rule for every VM?
> >>> 
> >>> It should be fine.  We regularly use 10000 rules or more.
> >> 
> >> … sounds cool.
> >> We just have our nodes running with 20-50% of ( one) CPU-usage.
> >> And another story, with 98% showing lines ala:
> > 
> > What's the network load look like?  20-50% is a lot of CPU.  5% or
> > less is more typical.
> 
> 5 minute input rate 5653000 bits/sec, 3550 packets/sec
>   5 minute output rate 4723000 bits/sec, 2999 packets/sec
> 
> not really that much I think…

No, that's not much.

How many flows are there?  "ovs-dpctl show" will display this, among
other useful information.