link_layer.add_link(Link(router_a, 3, router_c, 0))
link_layer.add_link(Link(router_b, 1, router_d, 0))
link_layer.add_link(Link(router_c, 1, router_d, 1))
link_layer.add_link(Link(router_d, 2, host_3, 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()
#create some send events
print('\nSending first message from H1. Path should be:\n\n H1-RA-RC-RD-H3\n')
host_1.udt_send('h3', 'MESSAGE_1_FROM_H1')
# give time for message to be received
sleep(3)
print('\nSending second message from H2. Path should be:\n\n H2-RA-RB-RD-H3\n')
host_2.udt_send('h3', 'message_2_from_h2')
sleep(3)
print('\nSending third message from H3. Path should be:\n\n H3-RD-RC-RA-H2\n')
host_3.udt_send('h2', 'message_3_from_h3')
# for i in range(5):
# priority = i%2
# host_1.udt_send('h2', 'message_%d_from_h1' % i, priority)
#give the network sufficient time to transfer all packets before quitting
sleep(simulation_time)
link_layer.add_link(Link(router_a, 2, router_b, 0))
link_layer.add_link(Link(router_a, 3, router_c, 0))
link_layer.add_link(Link(router_b, 1, router_d, 0))
link_layer.add_link(Link(router_c, 1, router_d, 1))
link_layer.add_link(Link(router_d, 2, host_3, 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()
# create some send events
for i in range(5):
priority = i % 2
host_1.udt_send('H3', 'MESSAGE_%d_FROM_H1' % i, priority)
host_2.udt_send('H3', 'MESSAGE_%d_FROM_H2' % i, priority)
# give the network sufficient time to transfer all packets before quitting
sleep(simulation_time)
# join all threads
for o in object_L:
o.stop = True
for t in thread_L:
t.join()
print("All simulation threads joined")
link_layer.add_link(Link(router_d, 2, router_b, 0))
link_layer.add_link(Link(router_d, 1, router_c, 1))
link_layer.add_link(Link(host_3, 0, router_d, 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()
#Currently, h1 and h2 will send through the same path, but h3 will send through different. Should be improved.
host_1.udt_send('H2', 'MESSAGE_%d_FROM_H1' % 0, 0)
host_1.udt_send('H3', 'MESSAGE_%d_FROM_H1' % 1, 1)
host_2.udt_send('H3', 'MESSAGE_%d_FROM_H2' % 0, 0)
host_3.udt_send('H1', 'MESSAGE_%d_FROM_H3' % 0, 1)
#create some send events
# for i in range(5):
# priority = i%2
# host_1.udt_send('H2', 'MESSAGE_%d_FROM_H1' % i, priority)
#give the network sufficient time to transfer all packets before quitting
sleep(simulation_time)
#join all threads
for o in object_L:
o.stop = True
link_layer.add_link(Link(router_a, 3, router_c, 0))
link_layer.add_link(Link(router_b, 1, router_d, 0))
link_layer.add_link(Link(router_c, 1, router_d, 2))
link_layer.add_link(Link(router_d, 1, host_3, 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()
# create some send events
priority = i = 2
host_1.udt_send('H3', 'MESSAGE_FROM_H1', priority)
print("Sending message: 'MESSAGE_FROM_H1'")
print("To: H3 From H1.")
print("With Priority: %d." % priority)
host_2.udt_send('H3', 'MESSAGE_FROM_H2', priority)
print("Sending message: 'MESSAGE_FROM_H2'")
print("To: H3 From H2.")
print("With Priority: %d." % priority)
# give the network sufficient time to transfer all packets before quitting
sleep(simulation_time)
# join all threads
0)) # router a to router b connections
link_layer.add_link(Link(router_b, 1, router_d, 0)) # router b to router d
link_layer.add_link(Link(router_c, 1, router_d, 1)) # router c to router d
link_layer.add_link(Link(router_d, 2, host_3, 0)) # host 3 to router d
#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()
#create some send events
for i in range(1):
priority = i % 2
host_1.udt_send('H3', 'MESSAGE_%d_FROM_H1' % i, 1)
# sleep tp give time for host 1's messege to reach host 3
sleep(2)
host_2.udt_send('H3', 'MESSAGE_%d_FROM_H2' % i, 0)
#give the network sufficient time to transfer all packets before quitting
sleep(simulation_time)
#join all threads
for o in object_L:
o.stop = True
for t in thread_L:
t.join()
print("All simulation threads joined")
link_layer.add_link(Link(router_b, 1, router_d, 1))
link_layer.add_link(Link(router_c, 1, router_d, 2))
link_layer.add_link(Link(router_d, 0, host_3, 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()
#create some send events
for i in range(1):
priority = i % 2
host_1.udt_send('H2', 'FIRST_%d_FROM_H1' % i, priority)
host_2.udt_send('H3', 'SECOND%d_FROM_H2' % i, priority)
host_1.udt_send('H3', 'THIRD%d_FROM_H1' % i, priority)
host_3.udt_send('H1', 'FOURTH%d_FROM_H3' % i, priority)
host_3.udt_send('H2', 'FIFTH%d_FROM_H3' % i, priority)
#give the network sufficient time to transfer all packets before quitting
sleep(simulation_time)
#join all threads
for o in object_L:
o.stop = True
for t in thread_L:
t.join()
print("All simulation threads joined")