[ovs-discuss] data path limit

faicker mo faicker.mo at gmail.com
Tue Aug 28 10:19:40 UTC 2012


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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