def installPathFlows(macHostA, macHostB, pathA2B):
##### YOUR CODE HERE #####
#flow=ryu_ofctl.FlowEntry()
for x in range(0, len(pathA2B)):
flow = ryu_ofctl.FlowEntry()
act = ryu_ofctl.OutputAction(pathA2B[x]['out_port'])
flow.in_port = pathA2B[x]['in_port']
flow.addAction(act)
dpid = pathA2B[x]['dpid']
#print dpid
#print pathA2B[x]['in_port']
#print pathA2B[x]['out_port']
ryu_ofctl.insertFlow(dpid, flow)
for x in reversed(range(0, len(pathA2B))):
flow = ryu_ofctl.FlowEntry()
act = ryu_ofctl.OutputAction(pathA2B[x]['in_port'])
flow.in_port = pathA2B[x]['out_port']
flow.addAction(act)
dpid = pathA2B[x]['dpid']
ryu_ofctl.insertFlow(dpid, flow)
print "installed"
return
def createFlow(dl_src, dl_dst, in_port, out_port, switch_dpid, priority=50001):
"""
create the flow and insert to the switch
:param dl_src: source mac, string
:param dl_dst: dest mac, string
:param in_port: in port, integer
:param out_port: out port for the action, integer
:return: the FlowEntry object with the associate action of out_port
"""
flow = ryu_ofctl.FlowEntry()
# for the constant
flow.priority = priority
# http protocol: tcp and port 80
flow.dl_type = 0x800 # IPV4
flow.nw_proto = 0x6 # TCP
flow.tp_dst = 80 # webserver port
# for src and dest mac
flow.dl_src = dl_src
flow.dl_dst = dl_dst
# for in and out_port
flow.in_port = in_port
act = ryu_ofctl.OutputAction(out_port)
# add the action to the flow
flow.addAction(act)
# insert the flow to the switch
print("the flow is")
flow.printMatch()
print(ryu_ofctl.insertFlow(switch_dpid, flow))
return flow
def installPathFlows(macHostA, macHostB, pathA2B):
for link in pathA2B:
flow1 = ryu.FlowEntry()
flow2 = ryu.FlowEntry()
#print link
action1 = ryu.OutputAction(link['out_port'])
action2 = ryu.OutputAction(link['in_port'])
flow1.in_port = link['in_port']
flow2.in_port = link['out_port']
flow1.addAction(action1)
flow2.addAction(action2)
ryu.insertFlow(str(link['dpid']), flow1)
ryu.insertFlow(str(link['dpid']), flow2)
print "added flows"
return
import ryu_ofctl flow = ryu_ofctl.FlowEntry() act = ryu_ofctl.OutputAction(2) flow.in_port = 1 flow.dl_dst = "00:00:00:00:00:02" flow.addAction(act) dpid2 = 1 ryu_ofctl.insertFlow(dpid2, flow) act1 = ryu_ofctl.OutputAction(1) act2 = ryu_ofctl.OutputAction(3) flow.in_port = 2 flow.addAction(act2) flow.addAction(act1) dpid3 = 1 ryu_ofctl.insertFlow(dpid3, flow)
import ryu_ofctl flow1 = ryu_ofctl.FlowEntry() flow2 = ryu_ofctl.FlowEntry() flow3 = ryu_ofctl.FlowEntry() output_1 = ryu_ofctl.OutputAction(1) output_2 = ryu_ofctl.OutputAction(2) output_3 = ryu_ofctl.OutputAction(3) flow1.in_port = 1 flow3.in_port = 3 flow1.addAction(output_2) flow3.addAction(output_2) flow2.addAction(output_1) flow2.addAction(output_3) dpid = '1' ryu_ofctl.insertFlow(dpid, flow1) ryu_ofctl.insertFlow(dpid, flow3) #ryu_ofctl.insertFlow(dpid, flow2)
#marinette - march 28, 2019
import ryu_ofctl
dpid = '1' # '0x1' or '0000000000000001' works as well
#Deleting flows
ryu_ofctl.deleteAllFlows(dpid)
print("Deleted all flows.")
flow = ryu_ofctl.FlowEntry()
flow2 = ryu_ofctl.FlowEntry()
flow3 = ryu_ofctl.FlowEntry()
flow4 = ryu_ofctl.FlowEntry()
act = ryu_ofctl.OutputAction(2)
flow.in_port = 1
flow.dl_dst = "00:00:00:00:00:03"
flow2.in_port = 1
flow2.dl_dst = "00:00:00:00:00:02"
flow2.addAction(act)
flow3.in_port = 3
flow3.dl_dst = "00:00:00:00:00:01"
flow4.in_port = 3
flow4.dl_dst = "00:00:00:00:00:02"
flow4.addAction(act)
ryu_ofctl.insertFlow(dpid, flow)
ryu_ofctl.insertFlow(dpid, flow2)
ryu_ofctl.insertFlow(dpid, flow3)
import ryu_ofctl as ryu dpid = 1 ryu.deleteAllFlows(dpid) flow = ryu.FlowEntry() act1 = ryu.OutputAction(1) act2 = ryu.OutputAction(2) flow.in_port = 3 flow.addAction(act1) flow.addAction(act2) ryu.insertFlow(dpid, flow) flow2 = ryu.FlowEntry() act3 = ryu.OutputAction(3) act4 = ryu.OutputAction(2) flow2.in_port = 1 flow2.addAction(act3) flow2.addAction(act4) ryu.insertFlow(dpid, flow2)