def test_mininet_conversion_to_logical():
"""Test the conversion from a mininet logical network to a logical one."""
import networkx as nx
from distriopt import VirtualNetwork
from mininet.topo import Topo
virt_topo_mn = Topo()
# Add nodes
u = virt_topo_mn.addHost("u", cores=2, memory=1000)
v = virt_topo_mn.addHost("v", cores=2, memory=1000)
z = virt_topo_mn.addSwitch("z", cores=2, memory=1000)
# Add links
virt_topo_mn.addLink(u, v, rate=1000)
virt_topo_mn.addLink(v, z, rate=1000)
virt_topo_mn.addLink(u, z, rate=1000)
virtual_topo = VirtualNetwork.from_mininet(virt_topo_mn)
assert virtual_topo.number_of_nodes() == 3
assert len(virtual_topo.edges()) == 3
assert nx.is_connected(virtual_topo.g)
for node in virtual_topo.nodes():
assert virtual_topo.req_cores(node) == 2
assert virtual_topo.req_memory(node) == 1000
for i, j in virtual_topo.edges():
assert virtual_topo.req_rate(i, j) == 1000
def __init__(self, virtual, physical):
""""""
self.virtual = (VirtualNetwork.from_mininet(virtual) if isinstance(
virtual, Topo) else virtual)
self.physical = physical
self.solution = None
self.status = NotSolved
self.lb = 0
def __init__(self, virtual_topo, physical_topo, solver=EmbedGreedy):
""" virtual_topo: virtual topology to map
physical_topo: physical topology to map on
solver: solver class to use to solve the mapping"""
self.virtual_topo = VirtualNetwork.from_mininet(virtual_topo)
self.mininet_virtual = virtual_topo
self.physical_topo = PhysicalNetwork.from_files(physical_topo)
self.prob = None
self.solver = solver
self.solve()
self.places = self.__places()
def __init__(self, virtual_topo, cloud_prices, solver=BestFitDopProduct):
""" virtual_topo: virtual topology to map
physical_topo: physical topology to map on
solver: solver class to use to solve the mapping"""
self.virtual_topo = VirtualNetwork.from_mininet(virtual_topo)
self.cloud = CloudInstance.read_ec2_instances(vm_type=cloud_prices)
self.mininet_virtual = virtual_topo
self.prob = None
self.solver = solver
self.places = self.__places()