EDGE_DEVICES = ["of:00000000000000e1",
                "of:00000000000000e2",
                "of:00000000000000e3",
                "of:00000000000000e4"]
AGREGATION_DEVICES = ["of:00000000000000a1",
                    "of:00000000000000a2",
                    "of:00000000000000a3",
                    "of:00000000000000a4"]
CORE_DEVICES = ["of:00000000000000c1",
                "of:00000000000000c2"]

# Number of hosts connected to each edge switch
# Used to allow the use of default path when hosts are not all connected
HOST_IN_EDGE_DENSITY = [2,2,2,2] 