[ovs-discuss] A tool to feel-up flow-tables in ofproto

Blue Lang blue at veracity.io
Wed Jul 19 17:05:47 UTC 2017


Sara,

Follow the mininet tutorials for creating large topologies with nox or pox,
then run dump-flows accordingly.

https://inside-openflow.com/2016/06/29/custom-mininet-topologies-and-introducing-atom/


Thanks,

On Wed, Jul 19, 2017 at 7:12 AM, Sara Gittlin <sara.gittlin at gmail.com>
wrote:

> On Mon, Jul 17, 2017 at 8:21 PM, Ben Pfaff <blp at ovn.org> wrote:
> > On Mon, Jul 17, 2017 at 10:47:12AM +0300, Sara Gittlin wrote:
> >> On Sun, Jul 16, 2017 at 09:37:05AM +0300, Sara Gittlin wrote:
> >> > On Wed, Jul 12, 2017 at 11:40:41AM +0300, Sara Gittlin wrote:
> >> > > Thank you Ben
> >> > >
> >> > > >> I need a tool to feel up the flow tables in ofproto.
> >> > > >> do you know what tool/other should i use ?
> >> > >
> >> > > >What does it mean "to feel up" a flow table?
> >> > >
> >> > > i want to be able to read ofctl tables and to get a big output ~
> 10000
> >> > > - 50000 flows.
> >> > > i need it to order to run some algo. on these flows (e.g. try to
> >> > > generate megaflows .. )
> >> > > i know that i can do it with sdn controller -  is there other tools
> ?
> >> >
> >> > >Do you just want to run "ovs-ofctl dump-flows"?
> >> > >
> >> >>  Thanks Ben
> >> >>  this can be an option, unless there is a better way to retrieve all
> >> > > flows in ofproto
> >>
> >> > So far, you've said that you don't want to use a controller and you
> want
> >> > something "better" than ovs-ofctl.  What would be better?  It's
> >> > difficult to help when you don't give us much information on what you
> >> > want.
> >>
> >> Ben,  i think i understand now.
> >> I should use SDN controller , but how to create a big topology so lot
> >> of flows can be created ?
> >> mininet ? openstack ? other ?
> >
> > I'll have to leave that question to others, because it's not my area of
> > expertise.  I do hear a lot of good things about mininet.
> Alternatively - where  can i find a real dataset of the output  of
> ovs-dpct dump-flows   or ovs-ofctl dump-flows br
> this should be a big dump  file  of the output of one of these commands
> above
> Thanks - Sara
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