Hi all,
I am running my topology on mininet and I am trying to add VLAN tags for
the packets received on switches..
from ryu. ofproto. ether import ETH_TYPE_8021Q
//////////////////////////
field = parser.OFPMatchField.make(ofproto.OXM_OF_VLAN_VID,10)
actions = [datapath. ofproto_parser. OFPActionPushVlan (ETH_TYPE_8021Q),
datapath.ofproto_parser. OFPActionSetField (field)]
///////////////////////
When I try to run this actions, I get following error..
field = parser.OFPMatchField.make(ofproto.OXM_OF_VLAN_VID,10)
AttributeError: 'module' object has no attribute 'OFPMatchField'
I have attached my full code /////////
from ryu.base import app_manager
from ryu.controller import ofp_event
from ryu.controller.handler import CONFIG_DISPATCHER, MAIN_DISPATCHER
from ryu.controller.handler import set_ev_cls
from ryu.ofproto import ofproto_v1_3
from ryu.lib.packet import packet
from ryu.lib.packet import ethernet
from ryu.lib.mac import haddr_to_bin
from ryu.topology import switches
from ryu.topology.event import EventSwitchEnter, EventSwitchLeave
from ryu.controller import dpset
from ryu. ofproto. ether import ETH_TYPE_8021Q
class SwitchEventApp(app_manager.RyuApp):
_CONTEXTS = {'switches': switches.Switches,}
@set_ev_cls(EventSwitchEnter)
def _ev_switch_enter_handler(self, ev):
print('enter: %s' % ev)
datapath = ev.switch.dp
datapathID = datapath.id
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
field = parser.OFPMatchField.make(ofproto.OXM_OF_VLAN_VID,10)
actions = [datapath. ofproto_parser. OFPActionPushVlan
(ETH_TYPE_8021Q), datapath. ofproto_parser. OFPActionSetField (field)]
self.add_flow(datapath, 2,"00:00:00:00:00:03", actions)
actions2 = [datapath.ofproto_parser.OFPActionPopVlan(ETH_TYPE_8021Q)]
self.add_flow(datapath, 2,"00:00:00:00:00:03", actions2)
print ('DATAPATH ID: %s' % datapathID)
def add_flow(self, datapath, in_port, dst, actions):
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
actions = actions
match = parser.OFPMatch(in_port=in_port, dl_dst=haddr_to_bin(dst))
mod = datapath.ofproto_parser.OFPFlowMod(datapath=datapath,
cookie=0,idle_timeout=0, hard_timeout=0,priority=0,
buffer_id=ofproto.OFP_NO_BUFFER,flags=0, match=match, actions = actions2)
datapath.send_msg(mod)
Best Regards,
Windhya Rankothge,
Universitat Pompeu Fabra,
Barcelona.
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