[ovs-discuss] Need help on extending OVS to monitor/control network devices via SNMP

Christian Esteve Rothenberg chesteve at dca.fee.unicamp.br
Fri Mar 9 20:55:01 UTC 2012


Giogio,

I think the LegacyFlow project may fit your needs:
http://code.google.com/p/legacyflow/

Check it out!

-Christian

-- 
Christian Esteve Rothenberg, Ph.D.
Converged Networks Division (DRC)
Tel.:+55 19-3705-4479 / Cel.: +55 19-8193-7087
esteve at cpqd.com.br
www.cpqd.com.br



On Sat, Jan 28, 2012 at 15:10, Ben Pfaff <blp at nicira.com> wrote:

> I guess that I would probably implement a new ofproto provider that
> includes the features that you can support.  You can register your new
> ofproto provider by inserting a call to ofproto_class_register() into
> ofproto_initialize(), in ofproto/ofproto.c.
>
> On Sat, Jan 28, 2012 at 07:10:45PM +0100, Giorgio Buffa wrote:
> > Hello Ben,
> > Yes, you're definitely right! But this is not about implementing
> OpenFlow:
> > I just want to realize a management interface translation for the
> features
> > that is possible to translate (e.g. port statistics retrieval).
> >
> > Is up to the legacy network device to provide switching, routing, VLAN
> > tagging and so on, via hardware. Open vSwitch would just provide to me an
> > OpenFlow library/codebase, management framework and tools to be used by
> the
> > adaptation module.
> >
> > Kind regards,
> > Giorgio Buffa
> >
> > On Sat, Jan 28, 2012 at 6:49 PM, Ben Pfaff <blp at nicira.com> wrote:
> >
> > > On Sat, Jan 28, 2012 at 06:49:36PM +0100, Giorgio Buffa wrote:
> > > > Two pictures with the scenario and the role of OVS in this scenario
> are
> > > > attached. Following a brief explanation.
> > > >
> > > > I would like to have a legacy network device (i.e. with no support to
> > > > OpenFlow) to be monitored and controlled by an OpenFlow Controller
> via
> > > the
> > > > OpenFlow Protocol.
> > > >
> > > > Thus, the OpenFlow Protocol is to be translated to the management
> > > protocol
> > > > exposed by the network device (e.g., SNMP) by an adaptation layer,
> and
> > > vice
> > > > versa.
> > >
> > > It seems unlikely to me that SNMP features exposed by any given legacy
> > > network device are adequate to implement OpenFlow.
> > >
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>



-- 
Christian
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