def test_ecmp(self):
model8 = Model()
model8.rsvp_lsp_objects = set([])
model8.demand_objects = set([])
int_list = [{
'name': 'E-to-A',
'cost': 10,
'capacity': 300,
'node': 'E',
'remote_node': 'A',
'address': 1,
'failed': False
}, {
'name': 'C-to-D',
'cost': 30,
'capacity': 150,
'node': 'C',
'remote_node': 'D',
'address': 5,
'failed': False
}, {
'name': 'D-to-C',
'cost': 30,
'capacity': 150,
'node': 'D',
'remote_node': 'C',
'address': 5,
'failed': False
}, {
'name': 'A-to-E',
'cost': 10,
'capacity': 300,
'node': 'A',
'remote_node': 'E',
'address': 1,
'failed': False
}, {
'name': 'A-to-D',
'cost': 40,
'capacity': 20,
'node': 'A',
'remote_node': 'D',
'address': 2,
'failed': False
}, {
'name': 'D-to-A',
'cost': 40,
'capacity': 20,
'node': 'D',
'remote_node': 'A',
'address': 2,
'failed': False
}, {
'name': 'G-to-D',
'cost': 10,
'capacity': 100,
'node': 'G',
'remote_node': 'D',
'address': 7,
'failed': False
}, {
'name': 'C-to-A',
'cost': 30,
'capacity': 150,
'node': 'C',
'remote_node': 'A',
'address': 3,
'failed': False
}, {
'name': 'D-to-F',
'cost': 10,
'capacity': 300,
'node': 'D',
'remote_node': 'F',
'address': 6,
'failed': False
}, {
'name': 'F-to-D',
'cost': 10,
'capacity': 300,
'node': 'F',
'remote_node': 'D',
'address': 6,
'failed': False
}, {
'name': 'D-to-G',
'cost': 10,
'capacity': 100,
'node': 'D',
'remote_node': 'G',
'address': 7,
'failed': False
}, {
'name': 'B-to-A',
'cost': 20,
'capacity': 125,
'node': 'B',
'remote_node': 'A',
'address': 4,
'failed': False
}, {
'name': 'D-to-B',
'cost': 20,
'capacity': 125,
'node': 'D',
'remote_node': 'B',
'address': 8,
'failed': False
}, {
'name': 'B-to-G',
'cost': 10,
'capacity': 100,
'node': 'B',
'remote_node': 'G',
'address': 9,
'failed': False
}, {
'name': 'A-to-C',
'cost': 30,
'capacity': 150,
'node': 'A',
'remote_node': 'C',
'address': 3,
'failed': False
}, {
'name': 'B-to-D',
'cost': 20,
'capacity': 125,
'node': 'B',
'remote_node': 'D',
'address': 8,
'failed': False
}, {
'name': 'G-to-B',
'cost': 10,
'capacity': 100,
'node': 'G',
'remote_node': 'B',
'address': 9,
'failed': False
}, {
'name': 'A-to-B',
'cost': 20,
'capacity': 125,
'node': 'A',
'remote_node': 'B',
'address': 4,
'failed': False
}]
model8.add_network_interfaces_from_list(int_list)
demands = [
{
'source': 'A',
'dest': 'F',
'traffic': 40,
'name': 'dmd_a_f_1'
},
]
for demand in demands:
model8.add_demand(demand['source'], demand['dest'],
demand['traffic'], demand['name'])
int_a_b = model8.get_interface_object('A-to-B', 'A')
int_b_d = model8.get_interface_object('B-to-D', 'B')
int_b_g = model8.get_interface_object('B-to-G', 'B')
int_g_d = model8.get_interface_object('G-to-D', 'G')
int_d_f = model8.get_interface_object('D-to-F', 'D')
int_a_c = model8.get_interface_object('A-to-C', 'A')
int_c_d = model8.get_interface_object('C-to-D', 'C')
int_a_d = model8.get_interface_object('A-to-D', 'A')
model8.update_simulation()
self.assertEqual(int_a_b.traffic, 20)
self.assertEqual(int_b_d.traffic, 10)
self.assertEqual(int_d_f.traffic, 40)
self.assertEqual(int_b_g.traffic, 10)
self.assertEqual(int_g_d.traffic, 10)
self.assertEqual(int_a_c.traffic, 0)
self.assertEqual(int_c_d.traffic, 0)
self.assertEqual(int_a_d.traffic, 20)
def test_int_bw(self):
model = Model()
model.rsvp_lsp_objects = set([])
model.demand_objects = set([])
int_list = [{'name': 'E-to-A', 'cost': 10, 'capacity': 300, 'node': 'E', 'remote_node': 'A', 'address': 1,
'failed': False},
{'name': 'C-to-D', 'cost': 30, 'capacity': 150, 'node': 'C', 'remote_node': 'D', 'address': 5,
'failed': False},
{'name': 'D-to-C', 'cost': 30, 'capacity': 150, 'node': 'D', 'remote_node': 'C', 'address': 5,
'failed': False},
{'name': 'A-to-E', 'cost': 10, 'capacity': 300, 'node': 'A', 'remote_node': 'E', 'address': 1,
'failed': False},
{'name': 'A-to-D', 'cost': 40, 'capacity': 20, 'node': 'A', 'remote_node': 'D', 'address': 2,
'failed': False},
{'name': 'D-to-A', 'cost': 40, 'capacity': 20, 'node': 'D', 'remote_node': 'A', 'address': 2,
'failed': False},
{'name': 'G-to-D', 'cost': 10, 'capacity': 100, 'node': 'G', 'remote_node': 'D', 'address': 7,
'failed': False},
{'name': 'C-to-A', 'cost': 30, 'capacity': 150, 'node': 'C', 'remote_node': 'A', 'address': 3,
'failed': False},
{'name': 'D-to-F', 'cost': 10, 'capacity': 300, 'node': 'D', 'remote_node': 'F', 'address': 6,
'failed': False},
{'name': 'F-to-D', 'cost': 10, 'capacity': 300, 'node': 'F', 'remote_node': 'D', 'address': 6,
'failed': False},
{'name': 'D-to-G', 'cost': 10, 'capacity': 100, 'node': 'D', 'remote_node': 'G', 'address': 7,
'failed': False},
{'name': 'B-to-A', 'cost': 20, 'capacity': 125, 'node': 'B', 'remote_node': 'A', 'address': 4,
'failed': False},
{'name': 'D-to-B', 'cost': 20, 'capacity': 125, 'node': 'D', 'remote_node': 'B', 'address': 8,
'failed': False},
{'name': 'B-to-G', 'cost': 10, 'capacity': 100, 'node': 'B', 'remote_node': 'G', 'address': 9,
'failed': False},
{'name': 'A-to-C', 'cost': 30, 'capacity': 150, 'node': 'A', 'remote_node': 'C', 'address': 3,
'failed': False},
{'name': 'B-to-D', 'cost': 20, 'capacity': 125, 'node': 'B', 'remote_node': 'D', 'address': 8,
'failed': False},
{'name': 'G-to-B', 'cost': 10, 'capacity': 100, 'node': 'G', 'remote_node': 'B', 'address': 9,
'failed': False},
{'name': 'A-to-B', 'cost': 20, 'capacity': 125, 'node': 'A', 'remote_node': 'B', 'address': 4,
'failed': False}]
model.add_network_interfaces_from_list(int_list)
model.add_rsvp_lsp('A', 'D', 'lsp_a_d_1')
model.add_rsvp_lsp('A', 'D', 'lsp_a_d_2')
demands = [{'source': 'A', 'dest': 'D', 'traffic': 100, 'name': 'dmd_a_d_3'},
{'source': 'A', 'dest': 'D', 'traffic': 70, 'name': 'dmd_a_d_2'},
{'source': 'A', 'dest': 'D', 'traffic': 80, 'name': 'dmd_a_d_1'},
{'source': 'F', 'dest': 'E', 'traffic': 400, 'name': 'dmd_f_e_1'},
{'source': 'A', 'dest': 'F', 'traffic': 40, 'name': 'dmd_a_f_1'},
]
for demand in demands:
model.add_demand(demand['source'], demand['dest'],
demand['traffic'], demand['name'])
int_a_c = model.get_interface_object('A-to-C', 'A')
model.update_simulation()
print("int_a_c reserved and reservable bw = {} and {}".format(int_a_c.reserved_bandwidth,
int_a_c.reservable_bandwidth))
self.assertEqual(int_a_c.reserved_bandwidth, 125.0)
self.assertEqual(int_a_c.reservable_bandwidth, 25.0)
# find the best path from node A to B
best_A_B = model1.get_shortest_path(source, dest)
print("The best path from Node A to Node B is:", best_A_B)
print()
# display the traffic
print('Interface traffic with no failures:')
model1.update_simulation()
model1.display_interfaces_traffic()
print()
print()
# Find the remote interface for Node F, interface F-to-D
print("Find the remote interface for Node F, interface F-to-D:")
f_to_d = model1.get_interface_object('F-to-D', 'F')
remote_int = f_to_d.get_remote_interface(model1)
print("Remote interface is", remote_int)
print()
# Fail interface on node A, interface A-to-B
print('Failing interface A-to-B on node A')
int_to_fail = model1.get_interface_object('A-to-B', 'A')
int_to_fail.fail_interface(model1)
# Calculate new traffic on interfaces and display
# the new traffic after the failure
print('Here is the traffic after the failure:')
model1.update_simulation()
model1.display_interfaces_traffic()
print()
def test_lsp_failover(self):
model1 = Model()
model1.rsvp_lsp_objects = set()
model1.demand_objects = set()
int_list = [{
'name': 'E-to-A',
'cost': 10,
'capacity': 300,
'node': 'E',
'remote_node': 'A',
'circuit_id': 1,
'failed': False
}, {
'name': 'C-to-D',
'cost': 30,
'capacity': 150,
'node': 'C',
'remote_node': 'D',
'circuit_id': 5,
'failed': False
}, {
'name': 'D-to-C',
'cost': 30,
'capacity': 150,
'node': 'D',
'remote_node': 'C',
'circuit_id': 5,
'failed': False
}, {
'name': 'A-to-E',
'cost': 10,
'capacity': 300,
'node': 'A',
'remote_node': 'E',
'circuit_id': 1,
'failed': False
}, {
'name': 'A-to-D',
'cost': 40,
'capacity': 20,
'node': 'A',
'remote_node': 'D',
'circuit_id': 2,
'failed': False
}, {
'name': 'D-to-A',
'cost': 40,
'capacity': 20,
'node': 'D',
'remote_node': 'A',
'circuit_id': 2,
'failed': False
}, {
'name': 'G-to-D',
'cost': 10,
'capacity': 100,
'node': 'G',
'remote_node': 'D',
'circuit_id': 7,
'failed': False
}, {
'name': 'C-to-A',
'cost': 30,
'capacity': 150,
'node': 'C',
'remote_node': 'A',
'circuit_id': 3,
'failed': False
}, {
'name': 'D-to-F',
'cost': 10,
'capacity': 300,
'node': 'D',
'remote_node': 'F',
'circuit_id': 6,
'failed': False
}, {
'name': 'F-to-D',
'cost': 10,
'capacity': 300,
'node': 'F',
'remote_node': 'D',
'circuit_id': 6,
'failed': False
}, {
'name': 'D-to-G',
'cost': 10,
'capacity': 100,
'node': 'D',
'remote_node': 'G',
'circuit_id': 7,
'failed': False
}, {
'name': 'B-to-A',
'cost': 20,
'capacity': 125,
'node': 'B',
'remote_node': 'A',
'circuit_id': 4,
'failed': False
}, {
'name': 'D-to-B',
'cost': 20,
'capacity': 125,
'node': 'D',
'remote_node': 'B',
'circuit_id': 8,
'failed': False
}, {
'name': 'B-to-G',
'cost': 10,
'capacity': 100,
'node': 'B',
'remote_node': 'G',
'circuit_id': 9,
'failed': False
}, {
'name': 'A-to-C',
'cost': 30,
'capacity': 150,
'node': 'A',
'remote_node': 'C',
'circuit_id': 3,
'failed': False
}, {
'name': 'B-to-D',
'cost': 20,
'capacity': 125,
'node': 'B',
'remote_node': 'D',
'circuit_id': 8,
'failed': False
}, {
'name': 'G-to-B',
'cost': 10,
'capacity': 100,
'node': 'G',
'remote_node': 'B',
'circuit_id': 9,
'failed': False
}, {
'name': 'A-to-B',
'cost': 20,
'capacity': 125,
'node': 'A',
'remote_node': 'B',
'circuit_id': 4,
'failed': False
}]
model1.add_network_interfaces_from_list(int_list)
model1.add_rsvp_lsp('A', 'D', 'lsp_a_d_1')
model1.add_rsvp_lsp('A', 'D', 'lsp_a_d_2')
model1.fail_interface('A-to-B', 'A')
int_a_b = model1.get_interface_object('A-to-B', 'A')
int_a_c = model1.get_interface_object('A-to-C', 'A')
demands = [
{
'source': 'A',
'dest': 'D',
'traffic': 70,
'name': 'dmd_a_d_2'
},
{
'source': 'A',
'dest': 'D',
'traffic': 80,
'name': 'dmd_a_d_1'
},
{
'source': 'F',
'dest': 'E',
'traffic': 400,
'name': 'dmd_f_e_1'
},
{
'source': 'A',
'dest': 'F',
'traffic': 40,
'name': 'dmd_a_f_1'
},
]
for demand in demands:
model1.add_demand(demand['source'], demand['dest'],
demand['traffic'], demand['name'])
model1.update_simulation()
self.assertTrue(int_a_b.failed)
# int_a_b should not have any LSPs
lsps_on_int_a_b = [lsp for lsp in int_a_b.lsps(model1)]
self.assertTrue(len(lsps_on_int_a_b) == 0)
# int_a_c should have lsp_a_d_1 and lsp_a_d_2
lsp_names_on_int_a_c = [lsp.lsp_name for lsp in int_a_c.lsps(model1)]
self.assertIn('lsp_a_d_1', lsp_names_on_int_a_c)
self.assertIn('lsp_a_d_2', lsp_names_on_int_a_c)
# reservable_bandwidth on int_a_c
self.assertEqual(int_a_c.reserved_bandwidth, 150.0)
self.assertEqual(int_a_c.reservable_bandwidth, 0.0)
