[ovs-dev] How do we set fields for selection_method=hash?

[Simon Horman]

Thanks,

I was pretty pleased with the design :)

On Mon, Mar 20, 2017 at 01:36:27PM +0000, Yang, Yi Y wrote:
> Thanks Simon, I know how I can use it correctly from tests/ofproto.at, but it requires OpenFlow 1.5. I tried a new field I added, it is ok. This is really a good feature:-)
> 
> -----Original Message-----
> From: Simon Horman [mailto:simon.horman at netronome.com] 
> Sent: Monday, March 20, 2017 9:28 PM
> To: Yang, Yi Y <yi.y.yang at intel.com>
> Cc: ovs-dev at openvswitch.org
> Subject: Re: How do we set fields for selection_method=hash?
> 
> On Tue, Mar 14, 2017 at 06:32:30AM +0000, Yang, Yi Y wrote:
> > Hi, Simon
> > 
> > I notice you Netronome implemented selection_method support in ovs, 
> > now I just want to use the specified match fields as hash input, I 
> > checked ovs-ofctl man pages, for such use case, I must use 
> > "selection_method=hash fields=...", I'm not sure how I set fields I 
> > want, can you help give an example? We don't use IP 5 tuple for this, 
> > because they are almost same for our use case, it will be great if we 
> > can use a match field we can set as hash input. Thank you in advance.
> 
> Hi,
> 
> its a while since I have used the code in question but I believe you can use something like this:
> 
> 	type=select,selection_method=hash,fields(eth_dst,ip_dst,tcp_dst)
> 
> Where I believe fields can include any of the fields documented in ovs-fields(7).