#create routers and cost tables for reaching neighbors
cost_D = {'H1': {0: 1}, 'RB': {1: 1}} # {neighbor: {interface: cost}}
router_a = network_1.Router(name='RA',
cost_D = cost_D,
max_queue_size=router_queue_size)
object_L.append(router_a)
cost_D = {'H2': {1: 3}, 'RA': {0: 1}} # {neighbor: {interface: cost}}
router_b = network_1.Router(name='RB',
cost_D = cost_D,
max_queue_size=router_queue_size)
object_L.append(router_b)
#create a Link Layer to keep track of links between network nodes
link_layer = link_1.LinkLayer()
object_L.append(link_layer)
#add all the links - need to reflect the connectivity in cost_D tables above
link_layer.add_link(link_1.Link(host_1, 0, router_a, 0))
link_layer.add_link(link_1.Link(router_a, 1, router_b, 0))
link_layer.add_link(link_1.Link(router_b, 1, host_2, 0))
#start all the objects
thread_L = []
for obj in object_L:
thread_L.append(threading.Thread(name=obj.__str__(), target=obj.run))
for t in thread_L:
t.start()
for item in object_L:
if isinstance(item, network.Host):
N.append(item.addr)
elif isinstance(item, network.Router):
N.append(item.name)
R.append(item.name)
for item in object_L:
if isinstance(item, network.Router):
item.update_network_nodes(N,R)
item.initialize_routing_table()
#create a Link Layer to keep track of links between network nodes
link_layer = link.LinkLayer()
object_L.append(link_layer)
#add all the links - need to reflect the connectivity in cost_D tables above
link_layer.add_link(link.Link(host_1, 0, router_a, 0))
link_layer.add_link(link.Link(router_a, 1, router_b, 0))
link_layer.add_link(link.Link(router_b, 1, host_2, 0))
#link_layer.add_link(link.Link(host_2, 0, router_b, 1))
#link_layer.add_link(link.Link(router_b, 0, router_a, 1))
#link_layer.add_link(link.Link(router_a, 0, host_1, 0))
#start all the objects
thread_L = []
for obj in object_L:
thread_L.append(threading.Thread(name=obj.__str__(), target=obj.run))
# create routers and cost tables for reaching neighbors
cost_D = {'H1': {0: 1}, 'RB': {1: 1}} # {neighbor: {interface: cost}}
router_a = network_2.Router(name='RA',
cost_D=cost_D,
max_queue_size=router_queue_size)
object_L.append(router_a)
# {neighbor: {interface: cost}}
cost_D = {'H2': {1: 3}, 'RA': {0: 1}}
router_b = network_2.Router(name='RB',
cost_D=cost_D,
max_queue_size=router_queue_size)
object_L.append(router_b)
# create a Link Layer to keep track of links between network nodes
link_layer = link_2.LinkLayer()
object_L.append(link_layer)
# add all the links - need to reflect the connectivity in cost_D tables above
link_layer.add_link(link_2.Link(host_1, 0, router_a, 0))
link_layer.add_link(link_2.Link(router_a, 1, router_b, 0))
link_layer.add_link(link_2.Link(router_b, 1, host_2, 0))
# start all the objects
thread_L = []
for obj in object_L:
thread_L.append(threading.Thread(name=obj.__str__(), target=obj.run))
for t in thread_L:
t.start()
