Dear Ryu developers,
I'm trying to initiate the sending of a packet from within a Ryu app but
not sure how to do it right. The main problem is that I'm not sure how to
create a new Datapath/OFPPacketIn event object so that I can send an event.
Right now I have the following code snippet:
from ryu.base import app_manager
from ryu.controller import ofp_event
from ryu.lib.packet import ethernet, ipv4, icmp
from ryu.ofproto import ofproto_v1_3
class RyuEventSender(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
def send_packet(self):
pkt = ethernet.ethernet(dst='5e:cc:cc:b1:49:4b') / \
ipv4.ipv4(src='192.168.70.2',
dst='192.168.70.3',
proto=1) / \
icmp.icmp()
pkt.serialize()
ev = ... # Create an ofp_event.EventOFPPacketIn event
self.send_event_to_observers(ev)
print('[SENDER]:', ev.msg)
def start(self):
super().start()
self.send_packet()
Can you point me to how to create a Datapath object or a valid OFPPacketIn
event or any other way of sending a packet from within Ryu?
Thanks in advance.
Best,
Martin
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