[ovs-discuss] ovs-vswitchd number of datapaths
blp at nicira.com
Sat May 12 13:19:41 PDT 2012
On Fri, May 11, 2012 at 09:35:57PM -0700, Vjekoslav Brajkovic wrote:
> I'm running into a problem that should not be happening. According to
> the ovs-dpctl manpage, a single machine may host up to 256 datapaths
> (numbered 0 to 255).
> I'm successively creating a switch and specifying the same controller
> for each of them. In a nutshell:
> for n in nodes: # length(nodes) = 100
> command_create = 'ovs-vsctl add-br sw%s' %(n)
> command_set = 'ovs-vsctl set-controller sw%s tcp:127.0.0.1' %(n)
> Syslog does not report anything out of ordinary (ovs-appctl vlog/set
> [84876.575065] device sw70 entered promiscuous mode
> [84878.019359] device sw79 entered promiscuous mode
> [84879.115090] device sw78 entered promiscuous mode
> However, on the controller side, only 50 switches end up registering
> with the controller no matter what I do. If I remove one of the
> connected switches, a new (51th) switch instantiates a connection
> towards the controller.
There's no 50-datapath limit. There's not even really a 256-datapath
What version of OVS are you using?
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