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

[Ben Pfaff]

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.
> >