Hi all,
I’m working in a app that gives me the topology of the network. I’ve been
reading about how to use events and I wrote a very simple app, based on
simple_switch.py with few additional lines:
from ryu.topology import switches, event
from ryu.controller import dpset
from ryu.base import app_manager
from ryu.controller import mac_to_port
from ryu.controller import ofp_event
from ryu.controller.handler import MAIN_DISPATCHER
from ryu.controller.handler import set_ev_cls
from ryu.ofproto import ofproto_v1_0
from ryu.lib.mac import haddr_to_bin
from ryu.lib.packet import packet
from ryu.lib.packet import ethernet
class SimpleSwitch(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_0.OFP_VERSION]
__CONTEXTS = {'switches': switches.Switches, 'dpset': dpset.DPSet }
@set_ev_cls(event.EventLinkAdd, MAIN_DISPATCHER)
def switch_enter_handler(self, ev):
print("Swtich added")
The other lines of code are exactly the same as in simple_switch.py.
My problem is it seems that EventLinkAdd isn’t happening.
I’m working with a very simple custom topology with 1 switch and 2 hosts.
I run my app with the following command:
sudo PYTHONPATH=. ./bin/ryu-manager --verbose ryu/app/my_simple_switch.py
Can anyone help me?
I’ve looking for info, and I don’t find anything that helps me.
Thanks!!!
Regards,
Julián------------------------------------------------------------------------------
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