def apply_meter(meter_id):
"""Return instruction to apply a meter."""
return parser.OFPInstructionMeter(meter_id, ofp.OFPIT_METER)
def switch_features_handler(self, event):
""" Switche sent his features, check if Beba supported """
msg = event.msg
datapath = msg.datapath
LOG.info("Configuring switch %d..." % datapath.id)
for table in range(0, 2):
""" Set tables as stateful """
req = bebaparser.OFPExpMsgConfigureStatefulTable(datapath=datapath,
table_id=table,
stateful=1)
datapath.send_msg(req)
""" Set lookup extractor = {ip_src, ip_dst, tcp_src, tcp_dst} """
req = bebaparser.OFPExpMsgKeyExtract(
datapath=datapath,
command=bebaproto.OFPSC_EXP_SET_L_EXTRACTOR,
fields=[
ofproto.OXM_OF_IPV4_SRC, ofproto.OXM_OF_IPV4_DST,
ofproto.OXM_OF_TCP_SRC, ofproto.OXM_OF_TCP_DST
],
table_id=table)
datapath.send_msg(req)
""" Set update extractor = {ip_src, ip_dst, tcp_src, tcp_dst} (same as lookup) """
req = bebaparser.OFPExpMsgKeyExtract(
datapath=datapath,
command=bebaproto.OFPSC_EXP_SET_U_EXTRACTOR,
fields=[
ofproto.OXM_OF_IPV4_SRC, ofproto.OXM_OF_IPV4_DST,
ofproto.OXM_OF_TCP_SRC, ofproto.OXM_OF_TCP_DST
],
table_id=table)
datapath.send_msg(req)
""" Configure meter 1 """
b1 = ofparser.OFPMeterBandDscpRemark(rate=10, prec_level=1)
req = ofparser.OFPMeterMod(datapath,
command=ofproto.OFPMC_ADD,
flags=ofproto.OFPMF_PKTPS,
meter_id=1,
bands=[b1])
datapath.send_msg(req)
""" Table 0 """
match = ofparser.OFPMatch(eth_type=0x0800,
ipv4_dst="10.0.0.2",
state=0)
actions = [
bebaparser.OFPExpActionSetState(state=1,
table_id=0,
idle_timeout=30)
]
inst = [
ofparser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
actions),
ofparser.OFPInstructionMeter(meter_id=1),
ofparser.OFPInstructionGotoTable(table_id=1)
]
mod = ofparser.OFPFlowMod(datapath=datapath,
table_id=0,
priority=10,
match=match,
instructions=inst)
datapath.send_msg(mod)
match = ofparser.OFPMatch(eth_type=0x0800,
ipv4_dst="10.0.0.2",
state=1)
inst = [ofparser.OFPInstructionGotoTable(table_id=1)]
mod = ofparser.OFPFlowMod(datapath=datapath,
table_id=0,
priority=10,
match=match,
instructions=inst)
datapath.send_msg(mod)
match = ofparser.OFPMatch(eth_type=0x0800, ipv4_dst="10.0.0.1")
actions = [ofparser.OFPActionOutput(1)]
inst = [
ofparser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
actions)
]
mod = ofparser.OFPFlowMod(datapath=datapath,
table_id=0,
priority=10,
match=match,
instructions=inst)
datapath.send_msg(mod)
""" Table 1 """
match = ofparser.OFPMatch(state=0,
eth_type=0x0800,
ipv4_dst="10.0.0.2",
ip_dscp=10)
actions = [ofparser.OFPActionOutput(2)]
inst = [
ofparser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
actions)
]
mod = ofparser.OFPFlowMod(datapath=datapath,
table_id=1,
priority=10,
match=match,
instructions=inst)
datapath.send_msg(mod)
match = ofparser.OFPMatch(eth_type=0x0800,
ipv4_dst="10.0.0.2",
ip_dscp=12)
actions = [
bebaparser.OFPExpActionSetState(state=1,
table_id=1,
idle_timeout=30)
]
inst = [
ofparser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
actions)
]
mod = ofparser.OFPFlowMod(datapath=datapath,
table_id=1,
priority=10,
match=match,
instructions=inst)
datapath.send_msg(mod)
match = ofparser.OFPMatch(state=1,
eth_type=0x0800,
ipv4_dst="10.0.0.2",
ip_dscp=10)
actions = []
inst = [
ofparser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
actions)
]
mod = ofparser.OFPFlowMod(datapath=datapath,
table_id=1,
priority=10,
match=match,
instructions=inst)
datapath.send_msg(mod)
def apply_meter(meter_id):
return parser.OFPInstructionMeter(meter_id, ofp.OFPIT_METER)
def set_meter(meter_id):
#instruction to add meter
return parser.OFPInstructionMeter(meter_id)
