2013/2/26 oshiba <[email protected]>:
> Hi all,
>
> I would like to proceed some works when switch disconnected.
> But I don't found handler for switch disconnected.
> Please tell me handler of this and how to use it.
>
> Note:
> I found DEAD_DISPATCHER, but I cannot found event name of this.
> And I use Ryu with verbose mode, but display event of change dispather when
> we disconnect switch.
>
> Best Regards,
Hi,
Ryu app can handle datapath join/leave event with the following code:
--
from ryu.base import app_manager
from ryu.controller import dpset
from ryu.controller.handler import set_ev_cls
from ryu.ofproto import ofproto_v1_0
from ryu.ofproto import ofproto_v1_2
class TestDPSet(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_0.OFP_VERSION,
ofproto_v1_2.OFP_VERSION]
_CONTEXTS = {
'dpset': dpset.DPSet,
}
def __init__(self, *args, **kwargs):
super(TestDPSet, self).__init__(*args, **kwargs)
self.dpset = kwargs['dpset']
@set_ev_cls(dpset.EventDP, dpset.DPSET_EV_DISPATCHER)
def handler_datapath(self, ev):
if ev.enter:
print 'datapath join'
else:
print 'datapath leave'
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