def __init__(self, instance_number):
"""
:param instance_number: the controller instance number
:param net: the subnet allocated for the fibbing nodes
"""
self.leader = False
self.instance = instance_number
self.name = 'c%s' % instance_number
self.nodes = {}
self.bridge = Bridge('br0', self.name)
self.root = None
net = ip_network(CFG.get(DEFAULTSECT, 'base_net'))
controller_prefix = CFG.getint(DEFAULTSECT, 'controller_prefixlen')
host_prefix = net.max_prefixlen - controller_prefix
controller_base = (int(net.network_address) +
(instance_number << host_prefix))
controller_net = ip_address(controller_base)
self.net = ip_network('%s/%s' % (controller_net, controller_prefix))
self.graph_thread = daemon_thread(target=self.infer_graph,
name="Graph inference thread")
self.json_proxy = SJMPServer(hostname=CFG.get(DEFAULTSECT,
'json_hostname'),
port=CFG.getint(DEFAULTSECT,
'json_port'),
invoke=self.proxy_connected,
target=FakeNodeProxyImplem(self))
self.json_thread = daemon_thread(target=self.json_proxy.communicate,
name="JSON proxy thread")
# Used to assign unique router-id to each node
self.next_id = 1
self.links = []
# The fibbing routes
self.routes = {}
self.route_mappings = {}
