Hi Helcio, BGP is also useful on SDN networks, I think. For example, BGP can exchange the network information which managed one SDN controller to other SDN controllers, so SDN controllers can cooperate each other in the controllers cluster or so.
Therefore, it is reasonable to support BGP service in Ryu. The above is just an example to use BGP on SDN controller, though. Thanks, Iwase On 2016年07月21日 02:24, helcio wagner wrote: > Thanks, Iwase. It worked perfectly. > > I think that BGP support is a strategy to facilitate a communication > between SDN networks and non-SDN networks. I mean, there's no reason to a > controller to implement a standard routing protocol like BGP in a SDN-enabled > environment. Am I right? > > Helcio. > > > > 2016-07-19 2:49 GMT-03:00 Iwase Yusuke <[email protected] > <mailto:[email protected]>>: > > Hi, > > On 2016年07月15日 00:41, helcio wagner wrote: > > Hi, people. > > I've found a code about BGP in Ryu at this URL: > > https://ryu.readthedocs.io/en/latest/library_bgp_speaker.html > > I suppose it is not an application that can be used on execution > of 'ryu-manager', so I think it should to be executed as an ordinary Python > module. Am I right? > > > To execute BGPSpeaker in your RyuApp in a simple way, please instantiate > BGPSpeaker in your RyuApp initialization process. > > http://ryu.readthedocs.io/en/latest/library_bgp_speaker_ref.html#ryu.services.protocols.bgp.bgpspeaker.BGPSpeaker > > Simultaneously, please note to register your > handlers(best_path_change_handler, > peer_down_handler, peer_up_handler) in order to get events from > BGPSpeaker. > > e.g.) > $ git diff > diff --git a/ryu/app/simple_switch_13.py b/ryu/app/simple_switch_13.py > index 3e7c598..9a31296 100644 > --- a/ryu/app/simple_switch_13.py > +++ b/ryu/app/simple_switch_13.py > @@ -21,6 +21,7 @@ from ryu.ofproto import ofproto_v1_3 > from ryu.lib.packet import packet > from ryu.lib.packet import ethernet > from ryu.lib.packet import ether_types > +from ryu.services.protocols.bgp.bgpspeaker import BGPSpeaker > class SimpleSwitch13(app_manager.RyuApp): > @@ -29,6 +30,15 @@ class SimpleSwitch13(app_manager.RyuApp): > def __init__(self, *args, **kwargs): > super(SimpleSwitch13, self).__init__(*args, **kwargs) > self.mac_to_port = {} > + self.bgpspeaker = BGPSpeaker( > + as_number=65000, router_id='10.0.0.1', > + best_path_change_handler=self._best_path_change_handler) > + > + @staticmethod > + def _best_path_change_handler(ev): > + print('Best path changed: remote_as=%s prefix=%s ' > + 'next_hop=%s iis_withdraw=%s' % > + (ev.remote_as, ev.prefix, ev.nexthop, ev.is_withdraw)) > @set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER) > def switch_features_handler(self, ev): > > > Thanks, > Iwase > > > On the other hand, there is such an application in > '/ryu/ryu/services/protocols/bgp' directory. Its name is 'application.py'. My > point is: Does the controller become a BGP node when running that application? > > Thanks in advance. > > Helcio. > > > > ------------------------------------------------------------------------------ > What NetFlow Analyzer can do for you? Monitors network bandwidth and > traffic > patterns at an interface-level. Reveals which users, apps, and > protocols are > consuming the most bandwidth. Provides multi-vendor support for > NetFlow, > J-Flow, sFlow and other flows. Make informed decisions using capacity > planning > reports.http://sdm.link/zohodev2dev > > > > _______________________________________________ > Ryu-devel mailing list > [email protected] > <mailto:[email protected]> > https://lists.sourceforge.net/lists/listinfo/ryu-devel > > > > > ------------------------------------------------------------------------------ > What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic > patterns at an interface-level. Reveals which users, apps, and protocols are > consuming the most bandwidth. Provides multi-vendor support for NetFlow, > J-Flow, sFlow and other flows. Make informed decisions using capacity planning > reports.http://sdm.link/zohodev2dev > > > > _______________________________________________ > Ryu-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ryu-devel > ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports.http://sdm.link/zohodev2dev _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
