def __init__(self, logger, topo_file, routing_table_file):
self.logger = logger
# Read the Fixed routing table first
f = open(routing_table_file, "r")
routing_config = json.load(f)
f.close()
for rt in routing_config:
sn = Subnet(rt["subnet"], rt["router_port"], rt["router_mac"],
rt["gateway"])
self.subnets.append(sn)
# Read the fixed configuration from the topology file
topo_agraph = pgv.AGraph(topo_file)
switchnames = {}
# Read router name and dpid from topo
for node in topo_agraph.nodes():
if node.startswith("s"):
if node.attr["router"]:
router_name = str(node)
self.router_dpid = NetUtils.int_from_mac_colon_hex(
node.attr["dpid"])
else:
switchnames[str(node)] = NetUtils.int_from_mac_colon_hex(
node.attr["dpid"])
# Mark all the internal ports in the switches, since these need special attention
for link in topo_agraph.edges():
(src_node, dst_node) = link
if str(src_node) == router_name:
dpid = switchnames[str(dst_node)]
if dpid not in self.internal_ports:
self.internal_ports[dpid] = []
self.internal_ports[dpid].append(int(link.attr['dport']))
def __init__(self, logger, topo_file, routing_table_file):
self.logger = logger
# Read the Fixed routing table first
f = open(routing_table_file, "r")
routing_config = json.load(f)
f.close()
for rt in routing_config:
sn = Subnet(rt["subnet"],rt["router_port"],rt["router_mac"],rt["gateway"])
self.subnets.append(sn)
# Read the fixed configuration from the topology file
topo_agraph = pgv.AGraph(topo_file)
switchnames = {}
# Read router name and dpid from topo
for node in topo_agraph.nodes():
if node.startswith("s"):
if node.attr["router"]:
router_name = str(node)
self.router_dpid = NetUtils.int_from_mac_colon_hex(node.attr["dpid"])
else:
switchnames[str(node)] = NetUtils.int_from_mac_colon_hex(node.attr["dpid"])
# Mark all the internal ports in the switches, since these need special attention
for link in topo_agraph.edges():
(src_node, dst_node) = link
if str(src_node) == router_name:
dpid = switchnames[ str(dst_node) ]
if dpid not in self.internal_ports:
self.internal_ports[dpid] = []
self.internal_ports[dpid].append(int(link.attr['dport']))
