def testMultipleLevelForwardingConsistency(self):
"""Testing DRAGON route consistency filtering on Figure 4 topology with multiple level of prefixes"""
if active_tests['testMultipleLevelForwardingConsistency']:
print "Running testMultipleLevelForwardingConsistency ..."
for (a,b,c) in itertools.permutations([1,2,3]):
grand_parent = '1.0.0.0/20'
parent = '1.0.0.0/22'
child = '1.0.0.0/24'
bgp_sim.init()
bgp_sim.DRAGON_FILTERING_MODE = bgp_sim.DRAGON_FWD_CONSISTENCY
bgp_sim.readConfigFile(config_dir + "dragon_fig4.cfg")
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(a)), ['4.1', grand_parent], bgp_sim.EVENT_ANNOUNCE_PREFIX))
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(b)), ['5.1', parent], bgp_sim.EVENT_ANNOUNCE_PREFIX))
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(c)), ['6.1', child], bgp_sim.EVENT_ANNOUNCE_PREFIX))
bgp_sim.run()
# Everybody can reach the grandparent
for router_id in bgp_sim._router_list:
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(grand_parent) is not None)
# either filter or cannot even reach the prefix anymore
for router_id in ['1.1', '2.1']:
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(parent) is None) or \
parent in bgp_sim._router_list[router_id].filtered_prefixes)
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(child) is None) or \
child in bgp_sim._router_list[router_id].filtered_prefixes)
for router_id in ['4.1']:
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(child) is None) or \
child in bgp_sim._router_list[router_id].filtered_prefixes)
# can only filter q, not p
for router_id in ['3.1']:
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(child) is None) or \
child in bgp_sim._router_list[router_id].filtered_prefixes)
self.assertFalse((bgp_sim._router_list[router_id].loc_rib.search_exact(parent) is None) or \
parent in bgp_sim._router_list[router_id].filtered_prefixes)
# cannot filter
for router_id in ['5.1']:
self.assertFalse((bgp_sim._router_list[router_id].loc_rib.search_exact(child) is None) or \
child in bgp_sim._router_list[router_id].filtered_prefixes)
self.assertFalse((bgp_sim._router_list[router_id].loc_rib.search_exact(parent) is None) or \
parent in bgp_sim._router_list[router_id].filtered_prefixes)
# can only filter p, not q
for router_id in ['6.1']:
self.assertFalse((bgp_sim._router_list[router_id].loc_rib.search_exact(child) is None) or \
child in bgp_sim._router_list[router_id].filtered_prefixes)
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(parent) is None) or \
parent in bgp_sim._router_list[router_id].filtered_prefixes)
def testConvergenceEventBGPOnly(self): if active_tests['testConvergenceEventBGPOnly']: print "Running testConvergenceEventBGPOnly ..." for (a,b) in itertools.permutations([1,2]): parent = '10.0.0.0/22' child = '10.0.0.0/24' bgp_topology = nx.DiGraph() ## Edge (1,2) bgp_topology.add_edge(1, 2, type = 2) bgp_topology.add_edge(2, 1, type = 2) ## Edge (2,3) bgp_topology.add_edge(2, 3, type = 1) bgp_topology.add_edge(3, 2, type = 3) ## Edge (1,5) bgp_topology.add_edge(1, 5, type = 1) bgp_topology.add_edge(5, 1, type = 3) ## Edge (3,4) bgp_topology.add_edge(3, 4, type = 1) bgp_topology.add_edge(4, 3, type = 3) ## Edge (4,6) bgp_topology.add_edge(4, 6, type = 1) bgp_topology.add_edge(6, 4, type = 3) ## Edge (5,6) bgp_topology.add_edge(5, 6, type = 1) bgp_topology.add_edge(6, 5, type = 3) ## Edge (4,1) bgp_topology.add_edge(1, 4, type = 1) bgp_topology.add_edge(4, 1, type = 3) sim_config = output_configuration(bgp_topology) bgp_sim.init(output="simulation_output") bgp_sim.DRAGON_ACTIVATED = False bgp_sim.loadConfig(sim_config) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(a)), ['4.1', parent], bgp_sim.EVENT_ANNOUNCE_PREFIX)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(b)), ['6.1', child], bgp_sim.EVENT_ANNOUNCE_PREFIX)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(9.00), None, bgp_sim.EVENT_RESET_COUNTERS)) #bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(45.00), None, bgp_sim.EVENT_SHOW_ALL_RIBS)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(60.00), ['5.1', '1.1'], bgp_sim.EVENT_LINK_DOWN)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(90.00), ['5.1', '1.1'], bgp_sim.EVENT_LINK_UP)) #bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(120.00), ['5.1', '1.1'], bgp_sim.EVENT_SHOW_ALL_RIBS)) bgp_sim.run()
def testFwdConsistencyFiltering(self): """Testing DRAGON forwarding consistency filtering on Figure 2 topology""" if active_tests['testFwdConsistencyFiltering']: print "Running testFwdConsistencyFiltering ..." for (a,b) in itertools.permutations([1,2]): parent = '1.0.0.0/22' child = '1.0.0.0/24' bgp_sim.init() bgp_sim.DRAGON_FILTERING_MODE = bgp_sim.DRAGON_FWD_CONSISTENCY bgp_sim.readConfigFile(config_dir + "dragon_fig2.cfg") bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(a)), ['7.1', parent], bgp_sim.EVENT_ANNOUNCE_PREFIX)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(b)), ['9.1', child], bgp_sim.EVENT_ANNOUNCE_PREFIX)) bgp_sim.run() # Everybody can reach the parent for router_id in bgp_sim._router_list: self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(parent) is not None) # The parent is never filtered for router_id in bgp_sim._router_list: self.assertTrue(parent not in bgp_sim._router_list[router_id].filtered_prefixes) for router_id in ['2.1', '3.1', '4.1', '5.1', '8.1']: self.assertTrue(child in bgp_sim._router_list[router_id].filtered_prefixes) for router_id in ['1.1', '6.1', '7.1', '9.1']: self.assertTrue(child not in bgp_sim._router_list[router_id].filtered_prefixes) # These routers reach the child via a CUST for router_id in ['2.1', '4.1', '6.1', '7.1']: self.assertEquals(bgp_sim._router_list[router_id].loc_rib.search_exact(child).data['type'], 1) self.assertEquals(bgp_sim._router_list['1.1'].loc_rib.search_exact(parent).data['best_path'].aspath, (3,4,7)) self.assertEquals(bgp_sim._router_list['2.1'].loc_rib.search_exact(parent).data['best_path'].aspath, (7,)) self.assertEquals(bgp_sim._router_list['3.1'].loc_rib.search_exact(parent).data['best_path'].aspath, (4,7)) self.assertEquals(bgp_sim._router_list['4.1'].loc_rib.search_exact(parent).data['best_path'].aspath, (7,)) self.assertEquals(bgp_sim._router_list['5.1'].loc_rib.search_exact(parent).data['best_path'].aspath, (1,3,4,7)) self.assertEquals(bgp_sim._router_list['6.1'].loc_rib.search_exact(parent).data['best_path'].aspath, (1,3,4,7)) self.assertEquals(bgp_sim._router_list['7.1'].loc_rib.search_exact(parent).data['best_path'].aspath, ()) self.assertEquals(bgp_sim._router_list['8.1'].loc_rib.search_exact(parent).data['best_path'].aspath, (5,1,3,4,7)) self.assertEquals(bgp_sim._router_list['9.1'].loc_rib.search_exact(parent).data['best_path'].aspath, (7,)) self.assertEquals(bgp_sim._router_list['6.1'].loc_rib.search_exact(child).data['best_path'].aspath, (9,)) self.assertEquals(bgp_sim._router_list['7.1'].loc_rib.search_exact(child).data['best_path'].aspath, (9,)) self.assertEquals(bgp_sim._router_list['9.1'].loc_rib.search_exact(child).data['best_path'].aspath, ())
def testSimpleTriangle(self): if active_tests['testSimpleTriangle']: print "Running testSimpleTriangle ..." for (a,b) in itertools.permutations([1,2]): parent = '1.0.0.0/22' child = '1.0.0.0/24' bgp_topology = nx.DiGraph() ## Edge (1,2) bgp_topology.add_edge(1, 2, type = 2) bgp_topology.add_edge(2, 1, type = 2) ## Edge (2,3) bgp_topology.add_edge(2, 3, type = 1) bgp_topology.add_edge(3, 2, type = 3) ## Edge (1,3) bgp_topology.add_edge(1, 3, type = 1) bgp_topology.add_edge(3, 1, type = 3) sim_config = output_configuration(bgp_topology) bgp_sim.init() bgp_sim.DRAGON_FILTERING_MODE = bgp_sim.DRAGON_ROUTE_CONSISTENCY bgp_sim.loadConfig(sim_config) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(a)), ['2.1', parent], bgp_sim.EVENT_ANNOUNCE_PREFIX)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(b)), ['3.1', child], bgp_sim.EVENT_ANNOUNCE_PREFIX)) bgp_sim.run() # Everybody can reach the child for router_id in bgp_sim._router_list: self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(child) is not None) # Everybody can reach the parent for router_id in bgp_sim._router_list: self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(parent) is not None) self.assertEquals(bgp_sim._router_list['1.1'].loc_rib.search_exact(parent).data['best_path'].aspath, (2,)) self.assertEquals(bgp_sim._router_list['1.1'].loc_rib.search_exact(child).data['best_path'].aspath, (3,)) self.assertEquals(bgp_sim._router_list['2.1'].loc_rib.search_exact(child).data['best_path'].aspath, (3,))
def testSimpleTriangleForAggregates(self): if active_tests['testSimpleTriangleForAggregates']: print "Running testSimpleTriangleForAggregates ..." #for (a,b) in itertools.permutations([1,2]): for (a,b) in [(1,2)]: child1 = '1.0.0.0/24' child2 = '1.0.1.0/24' bgp_topology = nx.DiGraph() ## Edge (3,1) bgp_topology.add_edge(3, 1, type = 1) bgp_topology.add_edge(1, 3, type = 3) ## Edge (3,2) bgp_topology.add_edge(3, 2, type = 1) bgp_topology.add_edge(2, 3, type = 3) ## Edge (4,3) bgp_topology.add_edge(4, 3, type = 1) bgp_topology.add_edge(3, 4, type = 3) sim_config = output_configuration(bgp_topology) bgp_sim.init() bgp_sim.DRAGON_FILTERING_MODE = bgp_sim.DRAGON_ROUTE_CONSISTENCY bgp_sim.loadConfig(sim_config) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(a)), ['1.1', child1], bgp_sim.EVENT_ANNOUNCE_PREFIX)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(b)), ['2.1', child2], bgp_sim.EVENT_ANNOUNCE_PREFIX)) bgp_sim.run()
def testSimpleChainWithOneASAnnouncingParentChild(self):
if active_tests['testSimpleChainWithOneASAnnouncingParentChild']:
print "Running testSimpleChainWithOneASAnnouncingParentChild ..."
for (a,b) in itertools.permutations([1,2]):
parent = '1.0.0.0/22'
child = '1.0.0.0/24'
bgp_topology = nx.DiGraph()
## Edge (1,2)
bgp_topology.add_edge(1, 2, type = 1)
bgp_topology.add_edge(2, 1, type = 3)
## Edge (2,3)
bgp_topology.add_edge(2, 3, type = 1)
bgp_topology.add_edge(3, 2, type = 3)
## Edge (3,4)
bgp_topology.add_edge(3, 4, type = 1)
bgp_topology.add_edge(4, 3, type = 3)
sim_config = output_configuration(bgp_topology)
bgp_sim.init()
bgp_sim.DRAGON_FILTERING_MODE = bgp_sim.DRAGON_ROUTE_CONSISTENCY
bgp_sim.loadConfig(sim_config)
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(a)), ['4.1', parent], bgp_sim.EVENT_ANNOUNCE_PREFIX))
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(b)), ['4.1', child], bgp_sim.EVENT_ANNOUNCE_PREFIX))
#bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(0.9), None, bgp_sim.EVENT_SHOW_ALL_RIBS))
bgp_sim.run()
def testGenerateAggregatesForNonCoveredPrefixesWithFailureAndBack(self):
if active_tests['testGenerateAggregatesForNonCoveredPrefixesWithFailureAndBack']:
bgp_sim.RESTRICT_AGGREGATES_TO_PARENTLESS_PREFIXES = False
print "Running testGenerateAggregatesForNonCoveredPrefixesWithFailureAndBack ..."
for (a,b) in itertools.permutations([1,2]):
child1 = '10.0.0.0/24'
child2 = '10.0.1.0/24'
bgp_topology = nx.DiGraph()
## Edge (0,1)
bgp_topology.add_edge(0, 1, type = 1)
bgp_topology.add_edge(1, 0, type = 3)
## Edge (1,3)
bgp_topology.add_edge(1, 3, type = 1)
bgp_topology.add_edge(3, 1, type = 3)
## Edge (1,4)
bgp_topology.add_edge(1, 4, type = 1)
bgp_topology.add_edge(4, 1, type = 3)
## Edge (1,2)
bgp_topology.add_edge(1, 2, type = 1)
bgp_topology.add_edge(2, 1, type = 3)
## Edge (2,3)
bgp_topology.add_edge(2, 3, type = 1)
bgp_topology.add_edge(3, 2, type = 3)
## Edge (2,4)
bgp_topology.add_edge(2, 4, type = 1)
bgp_topology.add_edge(4, 2, type = 3)
sim_config = output_configuration(bgp_topology)
bgp_sim.init()
bgp_sim.DRAGON_FILTERING_MODE = bgp_sim.DRAGON_ROUTE_CONSISTENCY
bgp_sim.loadConfig(sim_config)
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(a)), ['3.1', child1], bgp_sim.EVENT_ANNOUNCE_PREFIX))
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(b)), ['4.1', child2], bgp_sim.EVENT_ANNOUNCE_PREFIX))
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(10)), ['1.1', '2.1'], bgp_sim.EVENT_LINK_DOWN))
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(20)), ['1.1', '2.1'], bgp_sim.EVENT_LINK_UP))
bgp_sim.run()
# Everybody can reach the parent
for router_id in bgp_sim._router_list:
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact('10.0.0.0/23') is not None)
# Everybody except 2.1 can reach the parent with the 2 routes
for router_id in set(bgp_sim._router_list) - set(['2.1']):
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact('10.0.0.0/23').data['best_path'].aspath[-1] == 2)
# These guys can filter all the children
for router_id in ['0.1', '1.1']:
for pfx in [child1, child2]:
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(pfx) is None) or \
pfx in bgp_sim._router_list[router_id].filtered_prefixes)
# These guys can filter the other childs
for router_id in ['3.1']:
for pfx in [child2]:
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(pfx) is None) or \
pfx in bgp_sim._router_list[router_id].filtered_prefixes)
# These guys can filter the other childs
for router_id in ['4.1']:
for pfx in [child1]:
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(pfx) is None) or \
pfx in bgp_sim._router_list[router_id].filtered_prefixes)
def testConvergenceEvent(self): if active_tests['testConvergenceEvent']: print "Running testConvergenceEvent ..." #for (a,b) in itertools.permutations([1,2]): for (a,b) in [(1,2)]: parent = '10.0.0.0/22' deaggregated_prefixes = ['10.0.2.0/23', '10.0.1.0/24'] child = '10.0.0.0/24' bgp_topology = nx.DiGraph() ## Edge (1,2) bgp_topology.add_edge(1, 2, type = 2) bgp_topology.add_edge(2, 1, type = 2) ## Edge (2,3) bgp_topology.add_edge(2, 3, type = 1) bgp_topology.add_edge(3, 2, type = 3) ## Edge (1,5) bgp_topology.add_edge(1, 5, type = 1) bgp_topology.add_edge(5, 1, type = 3) ## Edge (3,4) bgp_topology.add_edge(3, 4, type = 1) bgp_topology.add_edge(4, 3, type = 3) ## Edge (4,6) bgp_topology.add_edge(4, 6, type = 1) bgp_topology.add_edge(6, 4, type = 3) ## Edge (5,6) bgp_topology.add_edge(5, 6, type = 1) bgp_topology.add_edge(6, 5, type = 3) ## Edge (4,1) bgp_topology.add_edge(1, 4, type = 1) bgp_topology.add_edge(4, 1, type = 3) sim_config = output_configuration(bgp_topology) bgp_sim.init() bgp_sim.DRAGON_FILTERING_MODE = bgp_sim.DRAGON_ROUTE_CONSISTENCY bgp_sim.loadConfig(sim_config) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(a)), ['4.1', parent], bgp_sim.EVENT_ANNOUNCE_PREFIX)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(b)), ['6.1', child], bgp_sim.EVENT_ANNOUNCE_PREFIX)) #bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(100.00), None, bgp_sim.EVENT_SHOW_ALL_RIBS)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(199.00), None, bgp_sim.EVENT_ACTIVATE_DEAGGREGATES)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(200.00), ['4.1', '6.1'], bgp_sim.EVENT_LINK_DOWN)) bgp_sim.run() # Everybody can reach the parent for router_id in bgp_sim._router_list: self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(parent) is not None) # 1 cannot filter anything self.assertTrue(len(bgp_sim._router_list['1.1'].filtered_prefixes) == 0) # 1 advertises the parent as aggregate self.assertTrue(bgp_sim._router_list['1.1'].aggregated_prefixes == [parent]) # 2, 3, 4 can filter 10.0.0.0/24 for router_id in ['2.1', '3.1', '4.1']: self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(child) is None) or \ child in bgp_sim._router_list[router_id].filtered_prefixes) # 1, 2, 3 reaches the de-aggregates via 4 for router_id in ['2.1', '3.1']: for pfx in deaggregated_prefixes: self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(pfx).data['best_path'].aspath[-1] == 4)) # 5 and 6 filter the de-aggregates from 4 for router_id in ['5.1', '6.1']: for pfx in deaggregated_prefixes: self.assertTrue((bgp_sim._router_list['5.1'].loc_rib.search_exact(pfx) is None) or \ pfx in bgp_sim._router_list['5.1'].filtered_prefixes)
def testMultipleConvergenceEvent(self):
if active_tests['testMultipleConvergenceEvent']:
print "Running testMultipleConvergenceEvent ..."
for (a,b) in itertools.permutations([1,2]):
parent = '10.0.0.0/22'
deaggregated_prefixes = ['10.0.2.0/23', '10.0.1.0/24']
child = '10.0.0.0/24'
bgp_topology = nx.DiGraph()
## Edge (1,2)
bgp_topology.add_edge(1, 2, type = 2)
bgp_topology.add_edge(2, 1, type = 2)
## Edge (2,3)
bgp_topology.add_edge(2, 3, type = 1)
bgp_topology.add_edge(3, 2, type = 3)
## Edge (1,5)
bgp_topology.add_edge(1, 5, type = 1)
bgp_topology.add_edge(5, 1, type = 3)
## Edge (3,4)
bgp_topology.add_edge(3, 4, type = 1)
bgp_topology.add_edge(4, 3, type = 3)
## Edge (4,6)
bgp_topology.add_edge(4, 6, type = 1)
bgp_topology.add_edge(6, 4, type = 3)
## Edge (5,6)
bgp_topology.add_edge(5, 6, type = 1)
bgp_topology.add_edge(6, 5, type = 3)
## Edge (4,1)
bgp_topology.add_edge(1, 4, type = 1)
bgp_topology.add_edge(4, 1, type = 3)
sim_config = output_configuration(bgp_topology)
bgp_sim.init()
bgp_sim.DRAGON_FILTERING_MODE = bgp_sim.DRAGON_ROUTE_CONSISTENCY
bgp_sim.loadConfig(sim_config)
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(a)), ['4.1', parent], bgp_sim.EVENT_ANNOUNCE_PREFIX))
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(b)), ['6.1', child], bgp_sim.EVENT_ANNOUNCE_PREFIX))
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(90.00), None, bgp_sim.EVENT_ACTIVATE_DEAGGREGATES))
y = 100.00
links = [
('4.1', '6.1'),
('3.1', '4.1'),
('2.1', '3.1'),
('1.1', '2.1'),
('1.1', '4.1'),
('1.1', '5.1'),
('5.1', '6.1')
]
i = 2
while (i>0):
link_to_fail = random.choice(links)
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(y), [link_to_fail[0], link_to_fail[1]], bgp_sim.EVENT_LINK_DOWN))
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(y + 200.00), [link_to_fail[0], link_to_fail[1]], bgp_sim.EVENT_LINK_UP))
y += 200.00
i -= 1
bgp_sim.run()
# Everybody can reach the grandparent
for router_id in bgp_sim._router_list:
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(parent) is not None)
# filter the prefix
for router_id in ['1.1', '3.1']:
self.assertTrue(child in bgp_sim._router_list[router_id].filtered_prefixes)
for router_id in ['1.1']:
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(parent).data['fwd_neighbors'] == set(['4.1']))
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(child).data['fwd_neighbors'] == set(['4.1', '5.1']))
# Routers 3 and 4 can reach the parent via 1 and 2
for router_id in ['3.1']:
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(child).data['fwd_neighbors'] == set(['4.1']))
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(parent).data['fwd_neighbors'] == set(['4.1']))
# become oblivious to the prefix
for router_id in ['2.1']:
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(child) is None)
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(parent).data['fwd_neighbors'] == set(['3.1']))
# cannot filter
for router_id in ['4.1', '5.1', '6.1']:
self.assertFalse((bgp_sim._router_list[router_id].loc_rib.search_exact(child) is None) or \
child in bgp_sim._router_list[router_id].filtered_prefixes)
self.assertFalse((bgp_sim._router_list[router_id].loc_rib.search_exact(parent) is None) or \
parent in bgp_sim._router_list[router_id].filtered_prefixes)
for router_id in ['5.1']:
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(parent).data['fwd_neighbors'] == set(['1.1']))
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(child).data['fwd_neighbors'] == set(['6.1']))
for router_id in ['6.1']:
self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(parent).data['fwd_neighbors'] == set(['5.1', '4.1']))
def testSimpleTriangleWithFailedLink(self): if active_tests['testSimpleTriangleWithFailedLink']: print "Running testSimpleTriangleWithFailedLink ..." for (a,b) in itertools.permutations([1,2]): parent = '1.0.0.0/22' deaggregated_parent1 = '1.0.2.0/23' deaggregated_parent2 = '1.0.1.0/24' child = '1.0.0.0/24' bgp_topology = nx.DiGraph() ## Edge (1,2) bgp_topology.add_edge(1, 2, type = 2) bgp_topology.add_edge(2, 1, type = 2) ## Edge (2,3) bgp_topology.add_edge(2, 3, type = 1) bgp_topology.add_edge(3, 2, type = 3) ## Edge (1,3) bgp_topology.add_edge(1, 3, type = 1) bgp_topology.add_edge(3, 1, type = 3) sim_config = output_configuration(bgp_topology) bgp_sim.init() bgp_sim.DRAGON_FILTERING_MODE = bgp_sim.DRAGON_ROUTE_CONSISTENCY bgp_sim.loadConfig(sim_config) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(a)), ['2.1', parent], bgp_sim.EVENT_ANNOUNCE_PREFIX)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(b)), ['3.1', child], bgp_sim.EVENT_ANNOUNCE_PREFIX)) bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(10)), ['2.1', '3.1'], bgp_sim.EVENT_LINK_DOWN)) #bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(100)), None, bgp_sim.EVENT_SHOW_ALL_RIBS)) bgp_sim.run() # Everybody can reach the child for router_id in bgp_sim._router_list: self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(child) is not None) # No one can filter anything for router_id in bgp_sim._router_list: self.assertTrue(len(bgp_sim._router_list[router_id].filtered_prefixes) == 0) # No one can reach the parent (because of the link failure) for router_id in bgp_sim._router_list: self.assertTrue(bgp_sim._router_list[router_id].loc_rib.search_exact(parent) is None, msg=router_id + " can reach the parent " + str(parent)) self.assertEquals(bgp_sim._router_list['1.1'].loc_rib.search_exact(child).data['type'], 1) self.assertEquals(bgp_sim._router_list['1.1'].loc_rib.search_exact(deaggregated_parent1).data['type'], 2) self.assertEquals(bgp_sim._router_list['1.1'].loc_rib.search_exact(deaggregated_parent2).data['type'], 2) self.assertEquals(bgp_sim._router_list['2.1'].loc_rib.search_exact(child).data['type'], 2) self.assertEquals(bgp_sim._router_list['2.1'].loc_rib.search_exact(deaggregated_parent1).data['type'], 0) self.assertEquals(bgp_sim._router_list['2.1'].loc_rib.search_exact(deaggregated_parent2).data['type'], 0) self.assertEquals(bgp_sim._router_list['3.1'].loc_rib.search_exact(child).data['type'], 0) self.assertEquals(bgp_sim._router_list['3.1'].loc_rib.search_exact(deaggregated_parent1).data['type'], 3) self.assertEquals(bgp_sim._router_list['3.1'].loc_rib.search_exact(deaggregated_parent2).data['type'], 3) self.assertEquals(bgp_sim._router_list['3.1'].loc_rib.search_exact(child).data['fwd_neighbors'], set([None])) self.assertEquals(bgp_sim._router_list['3.1'].loc_rib.search_exact(deaggregated_parent1).data['fwd_neighbors'], set(['1.1'])) self.assertEquals(bgp_sim._router_list['3.1'].loc_rib.search_exact(deaggregated_parent2).data['fwd_neighbors'], set(['1.1'])) self.assertEquals(bgp_sim._router_list['1.1'].loc_rib.search_exact(child).data['best_path'].aspath, (3,)) self.assertEquals(bgp_sim._router_list['2.1'].loc_rib.search_exact(child).data['best_path'].aspath, (1,3,)) for pfx in [deaggregated_parent1, deaggregated_parent2]: self.assertEquals(bgp_sim._router_list['1.1'].loc_rib.search_exact(pfx).data['best_path'].aspath, (2,))
def testAnycastAnnouncementOfAggregate(self):
if active_tests['testAnycastAnnouncementOfAggregate']:
print "Running testAnycastAnnouncementOfAggregate ..."
bgp_sim.RESTRICT_AGGREGATES_TO_PARENTLESS_PREFIXES = False
for (a,b,c) in itertools.permutations([1,2,3]):
child1 = '10.0.0.0/23'
child2 = '10.0.2.0/24'
child3 = '10.0.3.0/24'
bgp_topology = nx.DiGraph()
## Edge (1,2)
bgp_topology.add_edge(1, 2, type = 2)
bgp_topology.add_edge(2, 1, type = 2)
## Edge (1,3)
bgp_topology.add_edge(1, 3, type = 1)
bgp_topology.add_edge(3, 1, type = 3)
## Edge (2,4)
bgp_topology.add_edge(2, 4, type = 1)
bgp_topology.add_edge(4, 2, type = 3)
## Edge (5,3)
bgp_topology.add_edge(3, 5, type = 1)
bgp_topology.add_edge(5, 3, type = 3)
## Edge (5,4)
bgp_topology.add_edge(4, 5, type = 1)
bgp_topology.add_edge(5, 4, type = 3)
## Edge (6,3)
bgp_topology.add_edge(3, 6, type = 1)
bgp_topology.add_edge(6, 3, type = 3)
## Edge (6,4)
bgp_topology.add_edge(4, 6, type = 1)
bgp_topology.add_edge(6, 4, type = 3)
## Edge (7,3)
bgp_topology.add_edge(3, 7, type = 1)
bgp_topology.add_edge(7, 3, type = 3)
## Edge (7,4)
bgp_topology.add_edge(4, 7, type = 1)
bgp_topology.add_edge(7, 4, type = 3)
sim_config = output_configuration(bgp_topology)
bgp_sim.init()
bgp_sim.DRAGON_FILTERING_MODE = bgp_sim.DRAGON_ROUTE_CONSISTENCY
bgp_sim.loadConfig(sim_config)
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(a)), ['5.1', child1], bgp_sim.EVENT_ANNOUNCE_PREFIX))
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(b)), ['6.1', child2], bgp_sim.EVENT_ANNOUNCE_PREFIX))
bgp_sim._event_Scheduler.add(bgp_sim.CEvent(bgp_sim.toSystemTime(float(c)), ['7.1', child3], bgp_sim.EVENT_ANNOUNCE_PREFIX))
bgp_sim.run()
# These guys can filter the other childs
for router_id in ['1.1', '2.1']:
for pfx in [child1, child2, child3]:
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(pfx) is None) or \
pfx in bgp_sim._router_list[router_id].filtered_prefixes)
for router_id in ['5.1']:
for pfx in [child2, child3]:
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(pfx) is None) or \
pfx in bgp_sim._router_list[router_id].filtered_prefixes)
for router_id in ['6.1']:
for pfx in [child1, child3]:
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(pfx) is None) or \
pfx in bgp_sim._router_list[router_id].filtered_prefixes)
for router_id in ['7.1']:
for pfx in [child1, child2]:
self.assertTrue((bgp_sim._router_list[router_id].loc_rib.search_exact(pfx) is None) or \
pfx in bgp_sim._router_list[router_id].filtered_prefixes)
self.assertTrue(bgp_sim._router_list['3.1'].aggregated_prefixes == ['10.0.0.0/22'])
self.assertTrue(bgp_sim._router_list['4.1'].aggregated_prefixes == ['10.0.0.0/22'])