[ovs-discuss] data path limit
Ben Pfaff
blp at nicira.com
Tue Aug 28 14:37:42 UTC 2012
We haven't measured performance with a very large number of datapaths,
because this is not a common case. Perhaps the performance is fine.
You can create more than one tunnel per datapath. I don't know why
Quantum would create only one tunnel per datapath.
On Tue, Aug 28, 2012 at 06:19:40PM +0800, faicker mo wrote:
> Data path number affects the performance ?
> Ryu, an openstack quatumn plugin, uses the gre tunnel of OVS.
> The tunnel is created between any 2 hosts. The tunnel number will be N-1(N is the host number). The number will be greater than 255 one day.
>
> On 2012-8-27, at 21:42, Ben Pfaff <blp at nicira.com> wrote:
>
> > Perhaps you should explain a little bit. Usually, only a few datapaths
> > are needed. More than 255 is a surprising number.
> >
> > On Mon, Aug 27, 2012 at 02:21:57PM +0800, faicker mo wrote:
> >> I did a test, the data path number can be greater than 255.
> >> Yeah, we are estimating the project. With tunnel, it will be soon over 255.
> >>
> >> On 2012-8-27, at 12:16, Ben Pfaff <blp at nicira.com> wrote:
> >>
> >>> On Mon, Aug 27, 2012 at 11:57:23AM +0800, faicker mo wrote:
> >>>> Does the OVS really have the limit of data path number 256 per machine
> >>>> In OVS 1.7.0?
> >>>
> >>> No.
> >>>
> >>> Are you really approaching this number of datapaths?
> >>
>
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