def testDomainIsolation(self):
#Create two connected domains
myNet = SimBGP.CIGPNetwork()
myNet.addRouter("1", 1)
myNet.addRouter("2", 1)
myNet.addRouter("3", 2)
myNet.addRouter("4", 2)
myNet.addIGPLink("1", "2", 1500)
myNet.addIGPLink("3", "4")
myNet.addIGPLink("2", "3")
myNet.compute()
self.assertFalse(myNet.isReachableFrom("1", "4"))
self.assertFalse(myNet.isReachableFrom("4", "1"))
#1 can join 3 because 3 is ASBR
self.assertTrue(myNet.isReachableFrom("1", "3"))
#3 cannot join 1 because 1 is not ASBR of AS1
self.assertFalse(myNet.isReachableFrom("3", "1"))
#2 ASBR => must be reachable
self.assertTrue(myNet.isReachableFrom("2", "3"))
#4 is not ASBR => not joignable from outside
self.assertFalse(myNet.isReachableFrom("2", "4"))
#2 is an ASBR
self.assertTrue(myNet.isReachableFrom("4", "2"))
#Reg link
self.assertTrue(myNet.isReachableFrom("3", "2"))
self.assertTrue(myNet.isReachableFrom("2", "3"))
#Inside domains
self.assertTrue(myNet.isReachableFrom("1", "2"))
self.assertTrue(myNet.isReachableFrom("3", "4"))
self.assertTrue(myNet.isReachableFrom("2", "1"))
self.assertTrue(myNet.isReachableFrom("4", "3"))
def testGetLink(self):
myNet = SimBGP.CIGPNetwork()
myNet.addRouter("1", 1)
myNet.addRouter("2", 1)
myNet.addRouter("3", 1)
myNet.addIGPLink("1", "2", 1500)
myNet.addIGPLink("2", "3")
myNet.addIGPLink("1", "3")
myNet.compute()
self.assertEqual(myNet.getIGPLink("3", "1").cost, 500)
self.assertEqual(myNet.getIGPLink("3", "2").cost, 500)
self.assertEqual(myNet.getIGPLink("1", "2").cost, 1500)
def testUnreachability(self):
#Create unconnected network
myNet = SimBGP.CIGPNetwork()
myNet.addRouter("1", 1)
myNet.addRouter("2", 1)
myNet.addRouter("4", 1)
myNet.addRouter("5", 1)
myNet.addIGPLink("1", "2", 1500)
myNet.addIGPLink("4", "5")
myNet.compute()
self.assertFalse(myNet.isReachableFrom("1", "5"))
self.assertFalse(myNet.isReachableFrom("5", "1"))
self.assertEquals(myNet.getShortestPathLength("1", "5"), None)
def testDelayBetweenRouters(self):
myNet = SimBGP.CIGPNetwork()
myNet.addRouter("1", 1)
myNet.addRouter("2", 1)
myNet.addRouter("3", 1)
myNet.addIGPLink("1", "2", 1500)
myNet.addIGPLink("2", "3")
myNet.addIGPLink("3", "1")
myNet.compute()
#Link delay must be twice the default delay with a cost of 1
# See class IGP Link test
self.assertEqual(myNet.getPathTransmissionDelay("1", "2", 100000000),
2 * 1000000 * (5.0 / 3000.0 + 1.0))
def testIGPShortestPath(self):
myNet = SimBGP.CIGPNetwork()
myNet.addRouter("1", 1)
myNet.addRouter("2", 1)
myNet.addRouter("3", 1)
myNet.addIGPLink("1", "2", 1500)
myNet.addIGPLink("2", "3", 500)
myNet.addIGPLink("3", "1", 500)
myNet.compute()
self.assertEqual(myNet.getShortestPathLength("1", "2"),
myNet.getShortestPathLength("2", "1"))
self.assertEqual(myNet.getShortestPathLength("1", "2"),
myNet.getShortestPathLength("2", "1"))
self.assertEqual(myNet.getShortestPathLength("1", "2"), 1000)
self.assertEqual(myNet.getShortestPathLength("1", "3"), 500)
self.assertEqual(myNet.getShortestPathLength("3", "1"), 500)
self.assertEqual(myNet.getShortestPathLength("3", "2"), 500)