def test_reserved_bandwidth(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'])
lsp_a_d_1 = model.get_rsvp_lsp('A', 'D', 'lsp_a_d_1')
lsp_a_d_2 = model.get_rsvp_lsp('A', 'D', 'lsp_a_d_2')
model.fail_interface('A-to-B', 'A')
model.update_simulation()
print("lsp_a_d_1.reserved_bandwidth = {}".format(lsp_a_d_1.reserved_bandwidth))
print('int_a_c reservable_bandwidth = {}'.format(model.get_interface_object('A-to-C',
'A').reservable_bandwidth))
self.assertIn(lsp_a_d_1.reserved_bandwidth, ['Unrouted', 125.0])
self.assertIn(lsp_a_d_2.reserved_bandwidth, ['Unrouted', 125.0])
self.assertNotEqual(lsp_a_d_1.reserved_bandwidth, lsp_a_d_2.reserved_bandwidth)
# test get_circuit call from Interface object
int1 = model1.get_interface_object('A-to-B', 'A')
ckt1 = int1.get_circuit_object(model1)
print("The circuit associated with %s is %s" % (int1, ckt1))
print()
# test a demand path before and after an interface it traverses fails;
# should go from 2 paths to one path
dmd_B_D = model1.get_demand_object('B', 'D')
print("dmd_B_D path before failing interface B-to-D is")
for path in dmd_B_D.path:
pprint(path)
print()
print()
model1.fail_interface('B-to-D', 'B')
model1.update_simulation()
print("dmd_B_D path after failing interface B-to-D is")
pprint(dmd_B_D.path)
print()
# Fail a node and interface and display a utilization graph
print("Failing node E and interface B-to-D on node B and displaying \
a network graph:")
model1.fail_node('E')
model1.fail_interface('B-to-D', 'B')
model1.update_simulation()
# Get a demand and view its path
print("Get a demand and view its path.")
dmd_A_D = model1.get_demand_object('A', 'D')
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)
