from emuvim.dcemulator.node import Datacenter, EmulatorCompute
from emuvim.dcemulator.resourcemodel import ResourceModelRegistrar
-
class DCNetwork(Dockernet):
"""
Wraps the original Mininet/Dockernet class and provides
This class is used by topology definition scripts.
"""
- def __init__(self, controller=RemoteController,
+ def __init__(self, controller=RemoteController, monitor=False,
dc_emulation_max_cpu=1.0, # fraction of overall CPU time for emulation
dc_emulation_max_mem=512, # emulation max mem in MB
**kwargs):
self.DCNetwork_graph = nx.MultiDiGraph()
# monitoring agent
- self.monitor_agent = DCNetworkMonitor(self)
+ if monitor:
+ self.monitor_agent = DCNetworkMonitor(self)
+ else:
+ self.monitor_agent = None
# initialize resource model registrar
self.rm_registrar = ResourceModelRegistrar(
Dockernet.start(self)
def stop(self):
- # stop Ryu controller
+
+ # stop the monitor agent
+ if self.monitor_agent is not None:
+ self.monitor_agent.stop()
+
+ # stop emulator net
Dockernet.stop(self)
+
+ # stop Ryu controller
self.stopRyu()
+
def CLI(self):
CLI(self)
# to remove chain do setChain( src, dst, cmd='del-flows')
- def setChain(self, vnf_src_name, vnf_dst_name, cmd='add-flow'):
+ def setChain(self, vnf_src_name, vnf_dst_name, vnf_src_interface=None, vnf_dst_interface=None, cmd='add-flow'):
#check if port is specified (vnf:port)
- try:
- vnf_source_interface = vnf_src_name.split(':')[1]
- except:
+ if vnf_src_interface is None:
# take first interface by default
connected_sw = self.DCNetwork_graph.neighbors(vnf_src_name)[0]
link_dict = self.DCNetwork_graph[vnf_src_name][connected_sw]
- vnf_source_interface = link_dict[0]['src_port_id']
+ vnf_src_interface = link_dict[0]['src_port_id']
#vnf_source_interface = 0
- vnf_src_name = vnf_src_name.split(':')[0]
for connected_sw in self.DCNetwork_graph.neighbors(vnf_src_name):
link_dict = self.DCNetwork_graph[vnf_src_name][connected_sw]
for link in link_dict:
#logging.info("{0},{1}".format(link_dict[link],vnf_source_interface))
- if link_dict[link]['src_port_id'] == vnf_source_interface:
+ if link_dict[link]['src_port_id'] == vnf_src_interface:
# found the right link and connected switch
#logging.info("{0},{1}".format(link_dict[link]['src_port_id'], vnf_source_interface))
src_sw = connected_sw
src_sw_inport = link_dict[link]['dst_port']
break
- try:
- vnf_dest_interface = vnf_dst_name.split(':')[1]
- except:
+ if vnf_dst_interface is None:
# take first interface by default
connected_sw = self.DCNetwork_graph.neighbors(vnf_dst_name)[0]
link_dict = self.DCNetwork_graph[connected_sw][vnf_dst_name]
- vnf_dest_interface = link_dict[0]['dst_port_id']
+ vnf_dst_interface = link_dict[0]['dst_port_id']
#vnf_dest_interface = 0
vnf_dst_name = vnf_dst_name.split(':')[0]
for connected_sw in self.DCNetwork_graph.neighbors(vnf_dst_name):
link_dict = self.DCNetwork_graph[connected_sw][vnf_dst_name]
for link in link_dict:
- if link_dict[link]['dst_port_id'] == vnf_dest_interface:
+ if link_dict[link]['dst_port_id'] == vnf_dst_interface:
# found the right link and connected switch
dst_sw = connected_sw
dst_sw_outport = link_dict[link]['src_port']
logging.info("Next node: {0} is not a switch".format(next_hop))
return "Next node: {0} is not a switch".format(next_hop)
else:
+ # take first link between switches by default
index_edge_out = 0
switch_outport = self.DCNetwork_graph[current_hop][next_hop][index_edge_out]['src_port']
current_node.dpctl(cmd, ofcmd)
logging.info("add flow in switch: {0} in_port: {1} out_port: {2}".format(current_node.name, switch_inport,
switch_outport))
-
- switch_inport = self.DCNetwork_graph[current_hop][next_hop][index_edge_out]['dst_port']
- current_hop = next_hop
+ # take first link between switches by default
+ if isinstance( next_node, OVSSwitch ):
+ switch_inport = self.DCNetwork_graph[current_hop][next_hop][0]['dst_port']
+ current_hop = next_hop
return "path added between {0} and {1}".format(vnf_src_name, vnf_dst_name)
#return "destination node: {0} not reached".format(vnf_dst_name)