| /* |
| * Copyright 2016-present Open Networking Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.pce.pceservice; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.JsonNodeFactory; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableSet; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.onlab.graph.AbstractGraphPathSearch; |
| import org.onlab.graph.AdjacencyListsGraph; |
| import org.onlab.graph.DijkstraGraphSearch; |
| import org.onlab.graph.Graph; |
| import org.onlab.graph.GraphPathSearch; |
| import org.onlab.graph.ScalarWeight; |
| import org.onlab.graph.Weight; |
| import org.onlab.packet.ChassisId; |
| import org.onlab.util.Bandwidth; |
| import org.onosproject.net.AnnotationKeys; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.DefaultAnnotations; |
| import org.onosproject.net.DefaultDevice; |
| import org.onosproject.net.DefaultLink; |
| import org.onosproject.net.DefaultPath; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.Device.Type; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Link; |
| import org.onosproject.net.LinkKey; |
| import org.onosproject.net.Path; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.config.Config; |
| import org.onosproject.net.config.ConfigApplyDelegate; |
| import org.onosproject.net.config.ConfigFactory; |
| import org.onosproject.net.config.NetworkConfigRegistryAdapter; |
| import org.onosproject.net.device.DeviceServiceAdapter; |
| import org.onosproject.net.intent.Constraint; |
| import org.onosproject.net.provider.ProviderId; |
| import org.onosproject.net.topology.DefaultTopologyEdge; |
| import org.onosproject.net.topology.DefaultTopologyVertex; |
| import org.onosproject.net.topology.LinkWeigher; |
| import org.onosproject.net.topology.TopologyEdge; |
| import org.onosproject.net.topology.TopologyVertex; |
| import org.onosproject.pce.pceservice.constraint.CapabilityConstraint; |
| import org.onosproject.pce.pceservice.constraint.CostConstraint; |
| import org.onosproject.pce.pceservice.constraint.PceBandwidthConstraint; |
| import org.onosproject.pce.pceservice.constraint.SharedBandwidthConstraint; |
| import org.onosproject.pcep.api.DeviceCapability; |
| import org.onosproject.pcep.api.TeLinkConfig; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static com.google.common.collect.ImmutableSet.of; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.core.Is.is; |
| import static org.onlab.graph.GraphPathSearch.ALL_PATHS; |
| import static org.onosproject.core.CoreService.CORE_PROVIDER_ID; |
| import static org.onosproject.net.DeviceId.deviceId; |
| import static org.onosproject.net.Link.State.ACTIVE; |
| import static org.onosproject.net.Link.Type.DIRECT; |
| import static org.onosproject.pce.pceservice.constraint.CostConstraint.Type.COST; |
| import static org.onosproject.pce.pceservice.constraint.CostConstraint.Type.TE_COST; |
| |
| /** |
| * Test for CSPF path computation. |
| */ |
| public class PathComputationTest { |
| |
| private final MockDeviceService deviceService = new MockDeviceService(); |
| private final MockNetConfigRegistryAdapter netConfigRegistry = new MockNetConfigRegistryAdapter(); |
| private PceManager pceManager = new PceManager(); |
| private final MockBandwidthMgmtService bandwidthMgmtService = new MockBandwidthMgmtService(); |
| public static ProviderId providerId = new ProviderId("pce", "foo"); |
| public static final String DEVICE1 = "D001"; |
| public static final String DEVICE2 = "D002"; |
| public static final String DEVICE3 = "D003"; |
| public static final String DEVICE4 = "D004"; |
| public static final String DEVICE5 = "D005"; |
| public static final String PCEPDEVICE1 = "PD001"; |
| public static final String PCEPDEVICE2 = "PD002"; |
| public static final String PCEPDEVICE3 = "PD003"; |
| public static final String PCEPDEVICE4 = "PD004"; |
| public static final TopologyVertex D1 = new DefaultTopologyVertex(DeviceId.deviceId("D001")); |
| public static final TopologyVertex D2 = new DefaultTopologyVertex(DeviceId.deviceId("D002")); |
| public static final TopologyVertex D3 = new DefaultTopologyVertex(DeviceId.deviceId("D003")); |
| public static final TopologyVertex D4 = new DefaultTopologyVertex(DeviceId.deviceId("D004")); |
| public static final TopologyVertex D5 = new DefaultTopologyVertex(DeviceId.deviceId("D005")); |
| private static final String ANNOTATION_COST = "cost"; |
| private static final String ANNOTATION_TE_COST = "teCost"; |
| private static final String UNKNOWN = "unknown"; |
| public static final String LSRID = "lsrId"; |
| public static final String L3 = "L3"; |
| public static final String PCECC_CAPABILITY = "pceccCapability"; |
| public static final String SR_CAPABILITY = "srCapability"; |
| public static final String LABEL_STACK_CAPABILITY = "labelStackCapability"; |
| |
| @Before |
| public void startUp() { |
| pceManager.deviceService = deviceService; |
| pceManager.netCfgService = netConfigRegistry; |
| } |
| |
| /** |
| * Selects path computation algorithm. |
| * |
| * @return graph path search algorithm |
| */ |
| public static AbstractGraphPathSearch<TopologyVertex, TopologyEdge> graphSearch() { |
| return new DijkstraGraphSearch<>(); |
| } |
| |
| /** |
| * Returns link for two devices. |
| * |
| * @param device source device |
| * @param port source port |
| * @param device2 destination device |
| * @param port2 destination port |
| * @return link |
| */ |
| public static Link addLink(String device, long port, String device2, long port2, boolean setCost, int value) { |
| ConnectPoint src = new ConnectPoint(DeviceId.deviceId(device), PortNumber.portNumber(port)); |
| ConnectPoint dst = new ConnectPoint(DeviceId.deviceId(device2), PortNumber.portNumber(port2)); |
| Link curLink; |
| DefaultAnnotations.Builder annotationBuilder = DefaultAnnotations.builder(); |
| |
| //TODO:If cost not set cost : default value case |
| curLink = DefaultLink.builder().src(src).dst(dst).state(ACTIVE).type(DIRECT) |
| .providerId(PathComputationTest.providerId).annotations(annotationBuilder.build()).build(); |
| return curLink; |
| } |
| |
| @After |
| public void tearDown() { |
| pceManager.deviceService = null; |
| pceManager.netCfgService = null; |
| } |
| |
| /** |
| * Returns an edge-weight capable of evaluating links on the basis of the |
| * specified constraints. |
| * |
| * @param constraints path constraints |
| * @return edge-weight function |
| */ |
| private LinkWeigher weight(List<Constraint> constraints) { |
| return new MockTeConstraintBasedLinkWeight(constraints); |
| } |
| |
| private Set<Path> computePath(Link link1, Link link2, Link link3, Link link4, List<Constraint> constraints) { |
| Graph<TopologyVertex, TopologyEdge> graph = new AdjacencyListsGraph<>(of(D1, D2, D3, D4), |
| of(new DefaultTopologyEdge(D1, D2, link1), |
| new DefaultTopologyEdge(D2, D4, link2), |
| new DefaultTopologyEdge(D1, D3, link3), |
| new DefaultTopologyEdge(D3, D4, link4))); |
| |
| GraphPathSearch.Result<TopologyVertex, TopologyEdge> result = |
| graphSearch().search(graph, D1, D4, weight(constraints), ALL_PATHS); |
| ImmutableSet.Builder<Path> builder = ImmutableSet.builder(); |
| for (org.onlab.graph.Path<TopologyVertex, TopologyEdge> path : result.paths()) { |
| builder.add(networkPath(path)); |
| } |
| return builder.build(); |
| } |
| |
| private class MockDeviceService extends DeviceServiceAdapter { |
| List<Device> devices = new LinkedList<>(); |
| |
| private void addDevice(Device dev) { |
| devices.add(dev); |
| } |
| |
| @Override |
| public Device getDevice(DeviceId deviceId) { |
| for (Device dev : devices) { |
| if (dev.id().equals(deviceId)) { |
| return dev; |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public Iterable<Device> getAvailableDevices() { |
| return devices; |
| } |
| } |
| |
| private class MockTeConstraintBasedLinkWeight implements LinkWeigher { |
| |
| private final List<Constraint> constraints; |
| |
| /** |
| * Creates a new edge-weight function capable of evaluating links |
| * on the basis of the specified constraints. |
| * |
| * @param constraints path constraints |
| */ |
| MockTeConstraintBasedLinkWeight(List<Constraint> constraints) { |
| if (constraints == null) { |
| this.constraints = Collections.emptyList(); |
| } else { |
| this.constraints = ImmutableList.copyOf(constraints); |
| } |
| } |
| |
| @Override |
| public Weight getInitialWeight() { |
| return ScalarWeight.toWeight(0.0); |
| } |
| |
| @Override |
| public Weight getNonViableWeight() { |
| return ScalarWeight.NON_VIABLE_WEIGHT; |
| } |
| |
| @Override |
| public Weight weight(TopologyEdge edge) { |
| if (!constraints.iterator().hasNext()) { |
| //Takes default cost/hopcount as 1 if no constraints specified |
| return ScalarWeight.toWeight(1.0); |
| } |
| |
| Iterator<Constraint> it = constraints.iterator(); |
| double cost = 1; |
| |
| //If any constraint fails return -1 also value of cost returned from cost constraint can't be negative |
| while (it.hasNext() && cost > 0) { |
| Constraint constraint = it.next(); |
| if (constraint instanceof CapabilityConstraint) { |
| cost = ((CapabilityConstraint) constraint).isValidLink(edge.link(), deviceService, |
| netConfigRegistry) ? 1 : -1; |
| } else if (constraint instanceof PceBandwidthConstraint) { |
| cost = ((PceBandwidthConstraint) constraint).isValidLink(edge.link(), |
| bandwidthMgmtService) ? 1 : -1; |
| |
| } else if (constraint instanceof SharedBandwidthConstraint) { |
| cost = ((SharedBandwidthConstraint) constraint).isValidLink(edge.link(), |
| bandwidthMgmtService) ? 1 : -1; |
| |
| } else if (constraint instanceof CostConstraint) { |
| cost = ((CostConstraint) constraint).isValidLink(edge.link(), netConfigRegistry); |
| } else { |
| cost = constraint.cost(edge.link(), null); |
| } |
| } |
| return ScalarWeight.toWeight(cost); |
| } |
| } |
| |
| /** |
| * Returns the path in Path object format. |
| */ |
| public static Path networkPath(org.onlab.graph.Path<TopologyVertex, TopologyEdge> path) { |
| List<Link> links = path.edges().stream().map(TopologyEdge::link).collect(Collectors.toList()); |
| return new DefaultPath(CORE_PROVIDER_ID, links, path.cost()); |
| } |
| |
| public static class MockBandwidthMgmtService extends BandwidthMgmtServiceAdapter { |
| private Map<LinkKey, Double> teCost = new HashMap<>(); |
| // Locally maintain unreserved bandwidth of each link. |
| private Map<LinkKey, Set<Double>> unResvBw = new HashMap<>(); |
| |
| // Mapping tunnel with link key with local reserved bandwidth |
| private Map<LinkKey, Double> localReservedBw = new HashMap<>(); |
| |
| @Override |
| public boolean allocLocalReservedBw(LinkKey linkkey, Double bandwidth) { |
| Double allocatedBw = localReservedBw.get(linkkey); |
| if (allocatedBw != null) { |
| localReservedBw.put(linkkey, (allocatedBw + bandwidth)); |
| } else { |
| localReservedBw.put(linkkey, bandwidth); |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public boolean releaseLocalReservedBw(LinkKey linkkey, Double bandwidth) { |
| Double allocatedBw = localReservedBw.get(linkkey); |
| if (allocatedBw == null || allocatedBw < bandwidth) { |
| return false; |
| } |
| |
| Double releasedBw = allocatedBw - bandwidth; |
| if (releasedBw == 0.0) { |
| localReservedBw.remove(linkkey); |
| } else { |
| localReservedBw.put(linkkey, releasedBw); |
| } |
| return true; |
| } |
| |
| @Override |
| public Double getAllocatedLocalReservedBw(LinkKey linkkey) { |
| return localReservedBw.get(linkkey); |
| } |
| |
| @Override |
| public boolean addUnreservedBw(LinkKey linkkey, Set<Double> bandwidth) { |
| unResvBw.put(linkkey, bandwidth); |
| return true; |
| } |
| |
| @Override |
| public boolean removeUnreservedBw(LinkKey linkkey) { |
| unResvBw.remove(linkkey); |
| return true; |
| } |
| |
| @Override |
| public Set<Double> getUnreservedBw(LinkKey linkkey) { |
| checkNotNull(linkkey); |
| return unResvBw.get(linkkey); |
| } |
| |
| @Override |
| public boolean isBandwidthAvailable(Link link, Double bandwidth) { |
| LinkKey linkKey = LinkKey.linkKey(link); |
| Double localAllocBw = getAllocatedLocalReservedBw(linkKey); |
| |
| Set<Double> unResvBw = getUnreservedBw(linkKey); |
| |
| Double prirZeroBw = unResvBw.iterator().next(); |
| return (bandwidth <= prirZeroBw - (localAllocBw != null ? localAllocBw : 0)); |
| } |
| |
| @Override |
| public Double getTeCost(LinkKey linkKey) { |
| if (teCost.get(linkKey) != null) { |
| return teCost.get(linkKey); |
| } |
| return null; |
| } |
| |
| @Override |
| public Double getAvailableBandwidth(LinkKey linkKey) { |
| if (unResvBw.get(linkKey) != null && localReservedBw.get(linkKey) != null) { |
| |
| return unResvBw.get(linkKey).iterator().next().doubleValue() |
| - localReservedBw.get(linkKey).doubleValue(); |
| } |
| return unResvBw.get(linkKey).iterator().next().doubleValue(); |
| } |
| } |
| |
| /* Mock test for network config registry. */ |
| public static class MockNetConfigRegistryAdapter extends NetworkConfigRegistryAdapter { |
| private ConfigFactory cfgFactory; |
| private Map<DeviceId, DeviceCapability> classConfig = new HashMap<>(); |
| private Map<LinkKey, TeLinkConfig> teLinkConfig = new HashMap<>(); |
| |
| @Override |
| public void registerConfigFactory(ConfigFactory configFactory) { |
| cfgFactory = configFactory; |
| } |
| |
| @Override |
| public void unregisterConfigFactory(ConfigFactory configFactory) { |
| cfgFactory = null; |
| } |
| |
| @Override |
| public <S, C extends Config<S>> C addConfig(S subject, Class<C> configClass) { |
| if (configClass == DeviceCapability.class) { |
| DeviceCapability devCap = new DeviceCapability(); |
| classConfig.put((DeviceId) subject, devCap); |
| |
| JsonNode node = new ObjectNode(new MockJsonNode()); |
| ObjectMapper mapper = new ObjectMapper(); |
| ConfigApplyDelegate delegate = new InternalApplyDelegate(); |
| devCap.init((DeviceId) subject, null, node, mapper, delegate); |
| return (C) devCap; |
| } else if (configClass == TeLinkConfig.class) { |
| TeLinkConfig teConfig = new TeLinkConfig(); |
| teLinkConfig.put((LinkKey) subject, teConfig); |
| |
| JsonNode node = new ObjectNode(new MockJsonNode()); |
| ObjectMapper mapper = new ObjectMapper(); |
| ConfigApplyDelegate delegate = new InternalApplyDelegate(); |
| teConfig.init((LinkKey) subject, null, node, mapper, delegate); |
| return (C) teConfig; |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public <S, C extends Config<S>> void removeConfig(S subject, Class<C> configClass) { |
| if (configClass == DeviceCapability.class) { |
| classConfig.remove(subject); |
| } else if (configClass == TeLinkConfig.class) { |
| teLinkConfig.remove(subject); |
| } |
| } |
| |
| @Override |
| public <S, C extends Config<S>> C getConfig(S subject, Class<C> configClass) { |
| if (configClass == DeviceCapability.class) { |
| return (C) classConfig.get(subject); |
| } else if (configClass == TeLinkConfig.class) { |
| return (C) teLinkConfig.get(subject); |
| } |
| return null; |
| } |
| |
| private class MockJsonNode extends JsonNodeFactory { |
| } |
| |
| // Auxiliary delegate to receive notifications about changes applied to |
| // the network configuration - by the apps. |
| private class InternalApplyDelegate implements ConfigApplyDelegate { |
| @Override |
| public void onApply(Config config) { |
| //configs.put(config.subject(), config.node()); |
| } |
| } |
| } |
| |
| /** |
| * All links with different costs with L1-L2 as least cost path. |
| */ |
| @Test |
| public void testpathComputationCase1() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, true, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, true, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, true, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, true, 50); |
| |
| CostConstraint costConst = CostConstraint.of(COST); |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(costConst); |
| |
| TeLinkConfig teLinkConfig = netConfigRegistry.addConfig(LinkKey.linkKey(link1), TeLinkConfig.class); |
| teLinkConfig.igpCost(50) |
| .apply(); |
| |
| |
| TeLinkConfig teLinkConfig2 = netConfigRegistry.addConfig(LinkKey.linkKey(link2), TeLinkConfig.class); |
| teLinkConfig2.igpCost(20) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig3 = netConfigRegistry.addConfig(LinkKey.linkKey(link3), TeLinkConfig.class); |
| teLinkConfig3.igpCost(100) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig4 = netConfigRegistry.addConfig(LinkKey.linkKey(link4), TeLinkConfig.class); |
| teLinkConfig4.igpCost(50) |
| .apply(); |
| |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| List<Link> links = new LinkedList<>(); |
| |
| links.add(link1); |
| links.add(link2); |
| |
| assertThat(paths.iterator().next().links(), is(links)); |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(70.0))); |
| } |
| |
| /** |
| * Links with same cost 100 except link3. |
| */ |
| @Test |
| public void testpathComputationCase2() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, true, 100); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, true, 100); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, true, 1000); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, true, 100); |
| |
| CostConstraint costConst = CostConstraint.of(COST); |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(costConst); |
| |
| TeLinkConfig teLinkConfig = netConfigRegistry.addConfig(LinkKey.linkKey(link1), TeLinkConfig.class); |
| teLinkConfig.igpCost(100) |
| .apply(); |
| |
| |
| TeLinkConfig teLinkConfig2 = netConfigRegistry.addConfig(LinkKey.linkKey(link2), TeLinkConfig.class); |
| teLinkConfig2.igpCost(100) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig3 = netConfigRegistry.addConfig(LinkKey.linkKey(link3), TeLinkConfig.class); |
| teLinkConfig3.igpCost(1000) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig4 = netConfigRegistry.addConfig(LinkKey.linkKey(link4), TeLinkConfig.class); |
| teLinkConfig4.igpCost(100) |
| .apply(); |
| |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| List<Link> links = new LinkedList<>(); |
| links.add(link1); |
| links.add(link2); |
| |
| assertThat(paths.iterator().next().links(), is(links)); |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(200.0))); |
| } |
| |
| /** |
| * Path which satisfy bandwidth as a constraint with 10bps. |
| */ |
| @Test |
| public void testpathComputationCase3() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, true, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, true, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, true, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, true, 50); |
| |
| Set<Double> unreserved = new HashSet<>(); |
| unreserved.add(new Double(50)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link1), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link1), new Double(0)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link2), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link2), new Double(0)); |
| |
| unreserved.remove(new Double(50)); |
| unreserved.add(new Double(100)); |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link3), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link3), new Double(0)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link4), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link4), new Double(0)); |
| |
| PceBandwidthConstraint bandwidthConst = new PceBandwidthConstraint(Bandwidth.bps(10.0)); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(bandwidthConst); |
| |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(2.0))); |
| } |
| |
| /** |
| * Path which satisfy bandwidth as a constraint with 60bps. |
| */ |
| @Test |
| public void testpathComputationCase4() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, true, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, true, 50); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, true, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, true, 100); |
| |
| Set<Double> unreserved = new HashSet<>(); |
| unreserved.add(new Double(50)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link1), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link1), new Double(0)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link2), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link2), new Double(0)); |
| |
| unreserved.remove(new Double(50)); |
| unreserved.add(new Double(100)); |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link3), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link3), new Double(0)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link4), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link4), new Double(0)); |
| |
| PceBandwidthConstraint bandwidthConst = new PceBandwidthConstraint(Bandwidth.bps(60.0)); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(bandwidthConst); |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(2.0))); |
| } |
| |
| /** |
| * Shared bandwidth as L1, L2 with its value 10 bps and bandwidth constraint as 20 bps. |
| */ |
| @Test |
| public void testpathComputationCase5() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, true, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, true, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, true, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, true, 80); |
| |
| Set<Double> unreserved = new HashSet<>(); |
| unreserved.add(new Double(50)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link1), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link1), new Double(0)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link2), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link2), new Double(0)); |
| |
| unreserved.remove(new Double(50)); |
| unreserved.add(new Double(100)); |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link3), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link3), new Double(0)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link4), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link4), new Double(0)); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| |
| List<Link> sharedLinks = new LinkedList<>(); |
| |
| List<Link> links = new LinkedList<>(); |
| links.add(link1); |
| links.add(link2); |
| |
| CostConstraint costConst = CostConstraint.of(COST); |
| |
| |
| TeLinkConfig teLinkConfig = netConfigRegistry.addConfig(LinkKey.linkKey(link1), TeLinkConfig.class); |
| teLinkConfig.igpCost(50) |
| .apply(); |
| |
| |
| TeLinkConfig teLinkConfig2 = netConfigRegistry.addConfig(LinkKey.linkKey(link2), TeLinkConfig.class); |
| teLinkConfig2.igpCost(20) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig3 = netConfigRegistry.addConfig(LinkKey.linkKey(link3), TeLinkConfig.class); |
| teLinkConfig3.igpCost(100) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig4 = netConfigRegistry.addConfig(LinkKey.linkKey(link4), TeLinkConfig.class); |
| teLinkConfig4.igpCost(50) |
| .apply(); |
| |
| sharedLinks.addAll(links); |
| SharedBandwidthConstraint sharedBw = new SharedBandwidthConstraint(sharedLinks, Bandwidth.bps(10), |
| Bandwidth.bps(20.0)); |
| constraints.add(sharedBw); |
| constraints.add(costConst); |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| assertThat(paths.iterator().next().links(), is(links)); |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(70.0))); |
| } |
| |
| /** |
| * Shared bandwidth as L1, L2 with its value 20 bps and bandwidth constraint as 10 bps. |
| */ |
| @Test |
| public void testpathComputationCase6() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, true, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, true, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, true, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, true, 80); |
| |
| Set<Double> unreserved = new HashSet<>(); |
| unreserved.add(new Double(50)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link1), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link1), new Double(0)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link2), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link2), new Double(0)); |
| |
| unreserved.remove(new Double(50)); |
| unreserved.add(new Double(100)); |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link3), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link3), new Double(0)); |
| |
| bandwidthMgmtService.addUnreservedBw(LinkKey.linkKey(link4), unreserved); |
| bandwidthMgmtService.allocLocalReservedBw(LinkKey.linkKey(link4), new Double(0)); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| |
| List<Link> sharedLinks = new LinkedList<>(); |
| |
| List<Link> links = new LinkedList<>(); |
| links.add(link1); |
| links.add(link2); |
| CostConstraint costConst = CostConstraint.of(COST); |
| |
| |
| TeLinkConfig teLinkConfig = netConfigRegistry.addConfig(LinkKey.linkKey(link1), TeLinkConfig.class); |
| teLinkConfig.igpCost(50) |
| .apply(); |
| |
| |
| TeLinkConfig teLinkConfig2 = netConfigRegistry.addConfig(LinkKey.linkKey(link2), TeLinkConfig.class); |
| teLinkConfig2.igpCost(20) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig3 = netConfigRegistry.addConfig(LinkKey.linkKey(link3), TeLinkConfig.class); |
| teLinkConfig3.igpCost(100) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig4 = netConfigRegistry.addConfig(LinkKey.linkKey(link4), TeLinkConfig.class); |
| teLinkConfig4.igpCost(80) |
| .apply(); |
| |
| sharedLinks.addAll(links); |
| SharedBandwidthConstraint sharedBwConst = new SharedBandwidthConstraint(sharedLinks, Bandwidth.bps(20), |
| Bandwidth.bps(10.0)); |
| constraints.add(sharedBwConst); |
| constraints.add(costConst); |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| assertThat(paths.iterator().next().links(), is(links)); |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(70.0))); |
| } |
| |
| /** |
| * Path without constraints. |
| */ |
| @Test |
| public void testpathComputationCase7() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, true, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, true, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, true, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, true, 80); |
| List<Constraint> constraints = new LinkedList<>(); |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(2.0))); |
| } |
| |
| /** |
| * With TeCost as a constraints. |
| */ |
| @Test |
| public void testpathComputationCase8() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, false, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, false, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, false, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, false, 80); |
| |
| CostConstraint tecostConst = CostConstraint.of(TE_COST); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(tecostConst); |
| |
| |
| TeLinkConfig teLinkConfig = netConfigRegistry.addConfig(LinkKey.linkKey(link1), TeLinkConfig.class); |
| teLinkConfig.teCost(50) |
| .apply(); |
| |
| |
| TeLinkConfig teLinkConfig2 = netConfigRegistry.addConfig(LinkKey.linkKey(link2), TeLinkConfig.class); |
| teLinkConfig2.teCost(20) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig3 = netConfigRegistry.addConfig(LinkKey.linkKey(link3), TeLinkConfig.class); |
| teLinkConfig3.teCost(100) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig4 = netConfigRegistry.addConfig(LinkKey.linkKey(link4), TeLinkConfig.class); |
| teLinkConfig4.teCost(80) |
| .apply(); |
| |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| List<Link> links = new LinkedList<>(); |
| links.add(link1); |
| links.add(link2); |
| assertThat(paths.iterator().next().links(), is(links)); |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(70.0))); |
| } |
| |
| /** |
| * With device supporting RSVP capability as a constraints. |
| */ |
| @Test |
| public void testpathComputationCase9() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, false, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, false, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, false, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, false, 80); |
| |
| CostConstraint tecostConst = CostConstraint.of(TE_COST); |
| |
| TeLinkConfig teLinkConfig = netConfigRegistry.addConfig(LinkKey.linkKey(link1), TeLinkConfig.class); |
| teLinkConfig.teCost(50) |
| .apply(); |
| |
| |
| TeLinkConfig teLinkConfig2 = netConfigRegistry.addConfig(LinkKey.linkKey(link2), TeLinkConfig.class); |
| teLinkConfig2.teCost(20) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig3 = netConfigRegistry.addConfig(LinkKey.linkKey(link3), TeLinkConfig.class); |
| teLinkConfig3.teCost(100) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig4 = netConfigRegistry.addConfig(LinkKey.linkKey(link4), TeLinkConfig.class); |
| teLinkConfig4.teCost(80) |
| .apply(); |
| |
| |
| CapabilityConstraint capabilityConst = CapabilityConstraint |
| .of(CapabilityConstraint.CapabilityType.WITH_SIGNALLING); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(capabilityConst); |
| constraints.add(tecostConst); |
| //Device1 |
| DefaultAnnotations.Builder builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "1.1.1.1"); |
| addDevice(DEVICE1, builder); |
| |
| DeviceCapability device1Cap = netConfigRegistry.addConfig(DeviceId.deviceId("1.1.1.1"), DeviceCapability.class); |
| device1Cap.setLabelStackCap(false) |
| .setLocalLabelCap(false) |
| .setSrCap(false) |
| .apply(); |
| |
| //Device2 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "2.2.2.2"); |
| addDevice(DEVICE2, builder); |
| |
| DeviceCapability device2Cap = netConfigRegistry.addConfig(DeviceId.deviceId("2.2.2.2"), DeviceCapability.class); |
| device2Cap.setLabelStackCap(false) |
| .setLocalLabelCap(false) |
| .setSrCap(false) |
| .apply(); |
| |
| //Device3 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "3.3.3.3"); |
| addDevice(DEVICE3, builder); |
| |
| DeviceCapability device3Cap = netConfigRegistry.addConfig(DeviceId.deviceId("3.3.3.3"), DeviceCapability.class); |
| device3Cap.setLabelStackCap(false) |
| .setLocalLabelCap(false) |
| .setSrCap(false) |
| .apply(); |
| |
| //Device4 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "4.4.4.4"); |
| addDevice(DEVICE4, builder); |
| |
| DeviceCapability device4Cap = netConfigRegistry.addConfig(DeviceId.deviceId("4.4.4.4"), DeviceCapability.class); |
| device4Cap.setLabelStackCap(false) |
| .setLocalLabelCap(false) |
| .setSrCap(false) |
| .apply(); |
| |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| List<Link> links = new LinkedList<>(); |
| links.add(link1); |
| links.add(link2); |
| assertThat(paths.iterator().next().links(), is(links)); |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(70.0))); |
| } |
| |
| /** |
| * Devices supporting CR capability. |
| */ |
| @Test |
| public void testpathComputationCase10() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, true, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, true, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, true, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, true, 80); |
| |
| CapabilityConstraint capabilityConst = CapabilityConstraint |
| .of(CapabilityConstraint.CapabilityType.WITHOUT_SIGNALLING_AND_WITHOUT_SR); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(capabilityConst); |
| CostConstraint costConst = CostConstraint.of(COST); |
| constraints.add(costConst); |
| TeLinkConfig teLinkConfig = netConfigRegistry.addConfig(LinkKey.linkKey(link1), TeLinkConfig.class); |
| teLinkConfig.igpCost(50) |
| .apply(); |
| |
| |
| TeLinkConfig teLinkConfig2 = netConfigRegistry.addConfig(LinkKey.linkKey(link2), TeLinkConfig.class); |
| teLinkConfig2.igpCost(20) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig3 = netConfigRegistry.addConfig(LinkKey.linkKey(link3), TeLinkConfig.class); |
| teLinkConfig3.igpCost(100) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig4 = netConfigRegistry.addConfig(LinkKey.linkKey(link4), TeLinkConfig.class); |
| teLinkConfig4.igpCost(80) |
| .apply(); |
| |
| //Device1 |
| DefaultAnnotations.Builder builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "1.1.1.1"); |
| addDevice(DEVICE1, builder); |
| DeviceCapability device1Cap = netConfigRegistry.addConfig(DeviceId.deviceId("1.1.1.1"), DeviceCapability.class); |
| device1Cap.setLabelStackCap(false) |
| .setLocalLabelCap(true) |
| .setSrCap(false) |
| .apply(); |
| |
| //Device2 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "2.2.2.2"); |
| addDevice(DEVICE2, builder); |
| DeviceCapability device2Cap = netConfigRegistry.addConfig(DeviceId.deviceId("2.2.2.2"), DeviceCapability.class); |
| device2Cap.setLabelStackCap(false) |
| .setLocalLabelCap(true) |
| .setSrCap(false) |
| .apply(); |
| |
| //Device3 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "3.3.3.3"); |
| addDevice(DEVICE3, builder); |
| DeviceCapability device3Cap = netConfigRegistry.addConfig(DeviceId.deviceId("3.3.3.3"), DeviceCapability.class); |
| device3Cap.setLabelStackCap(false) |
| .setLocalLabelCap(true) |
| .setSrCap(false) |
| .apply(); |
| |
| //Device4 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "4.4.4.4"); |
| addDevice(DEVICE4, builder); |
| DeviceCapability device4Cap = netConfigRegistry.addConfig(DeviceId.deviceId("4.4.4.4"), DeviceCapability.class); |
| device4Cap.setLabelStackCap(false) |
| .setLocalLabelCap(true) |
| .setSrCap(false) |
| .apply(); |
| |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| List<Link> links = new LinkedList<>(); |
| links.add(link1); |
| links.add(link2); |
| assertThat(paths.iterator().next().links(), is(links)); |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(70.0))); |
| } |
| |
| /** |
| * Device supporting SR capability. |
| */ |
| @Test |
| public void testpathComputationCase11() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, true, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, true, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, true, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, true, 80); |
| |
| CapabilityConstraint capabilityConst = CapabilityConstraint |
| .of(CapabilityConstraint.CapabilityType.SR_WITHOUT_SIGNALLING); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(capabilityConst); |
| CostConstraint costConst = CostConstraint.of(COST); |
| constraints.add(costConst); |
| |
| TeLinkConfig teLinkConfig = netConfigRegistry.addConfig(LinkKey.linkKey(link1), TeLinkConfig.class); |
| teLinkConfig.igpCost(50) |
| .apply(); |
| |
| |
| TeLinkConfig teLinkConfig2 = netConfigRegistry.addConfig(LinkKey.linkKey(link2), TeLinkConfig.class); |
| teLinkConfig2.igpCost(20) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig3 = netConfigRegistry.addConfig(LinkKey.linkKey(link3), TeLinkConfig.class); |
| teLinkConfig3.igpCost(100) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig4 = netConfigRegistry.addConfig(LinkKey.linkKey(link4), TeLinkConfig.class); |
| teLinkConfig4.igpCost(80) |
| .apply(); |
| //Device1 |
| DefaultAnnotations.Builder builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "1.1.1.1"); |
| addDevice(DEVICE1, builder); |
| DeviceCapability device1Cap = netConfigRegistry.addConfig(DeviceId.deviceId("1.1.1.1"), DeviceCapability.class); |
| device1Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| |
| //Device2 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "2.2.2.2"); |
| addDevice(DEVICE2, builder); |
| DeviceCapability device2Cap = netConfigRegistry.addConfig(DeviceId.deviceId("2.2.2.2"), DeviceCapability.class); |
| device2Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| |
| //Device3 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "3.3.3.3"); |
| addDevice(DEVICE3, builder); |
| DeviceCapability device3Cap = netConfigRegistry.addConfig(DeviceId.deviceId("3.3.3.3"), DeviceCapability.class); |
| device3Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| |
| //Device4 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "4.4.4.4"); |
| addDevice(DEVICE4, builder); |
| DeviceCapability device4Cap = netConfigRegistry.addConfig(DeviceId.deviceId("4.4.4.4"), DeviceCapability.class); |
| device4Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| List<Link> links = new LinkedList<>(); |
| links.add(link1); |
| links.add(link2); |
| assertThat(paths.iterator().next().links(), is(links)); |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(70.0))); |
| } |
| |
| /** |
| * Path with TE and SR capability constraint. |
| */ |
| @Test |
| public void testpathComputationCase12() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, false, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, false, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, false, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, false, 80); |
| |
| CostConstraint tecostConst = CostConstraint.of(TE_COST); |
| CapabilityConstraint capabilityConst = CapabilityConstraint |
| .of(CapabilityConstraint.CapabilityType.SR_WITHOUT_SIGNALLING); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| |
| constraints.add(capabilityConst); |
| constraints.add(tecostConst); |
| |
| TeLinkConfig teLinkConfig = netConfigRegistry.addConfig(LinkKey.linkKey(link1), TeLinkConfig.class); |
| teLinkConfig.teCost(50) |
| .apply(); |
| |
| |
| TeLinkConfig teLinkConfig2 = netConfigRegistry.addConfig(LinkKey.linkKey(link2), TeLinkConfig.class); |
| teLinkConfig2.teCost(20) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig3 = netConfigRegistry.addConfig(LinkKey.linkKey(link3), TeLinkConfig.class); |
| teLinkConfig3.teCost(100) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig4 = netConfigRegistry.addConfig(LinkKey.linkKey(link4), TeLinkConfig.class); |
| teLinkConfig4.teCost(80) |
| .apply(); |
| //Device1 |
| DefaultAnnotations.Builder builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "1.1.1.1"); |
| addDevice(DEVICE1, builder); |
| DeviceCapability device1Cap = netConfigRegistry.addConfig(DeviceId.deviceId("1.1.1.1"), DeviceCapability.class); |
| device1Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| |
| //Device2 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "2.2.2.2"); |
| addDevice(DEVICE2, builder); |
| DeviceCapability device2Cap = netConfigRegistry.addConfig(DeviceId.deviceId("2.2.2.2"), DeviceCapability.class); |
| device2Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| |
| //Device3 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "3.3.3.3"); |
| addDevice(DEVICE3, builder); |
| DeviceCapability device3Cap = netConfigRegistry.addConfig(DeviceId.deviceId("3.3.3.3"), DeviceCapability.class); |
| device3Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| |
| //Device4 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "4.4.4.4"); |
| addDevice(DEVICE4, builder); |
| DeviceCapability device4Cap = netConfigRegistry.addConfig(DeviceId.deviceId("4.4.4.4"), DeviceCapability.class); |
| device4Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| List<Link> links = new LinkedList<>(); |
| links.add(link1); |
| links.add(link2); |
| assertThat(paths.iterator().next().links(), is(links)); |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(70.0))); |
| } |
| |
| /** |
| * Path with capability constraint and with default cost. |
| */ |
| @Test |
| public void testpathComputationCase13() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, false, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, false, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, false, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, false, 80); |
| |
| CapabilityConstraint capabilityConst = CapabilityConstraint |
| .of(CapabilityConstraint.CapabilityType.SR_WITHOUT_SIGNALLING); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(capabilityConst); |
| //Device1 |
| DefaultAnnotations.Builder builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "1.1.1.1"); |
| addDevice(DEVICE1, builder); |
| DeviceCapability device1Cap = netConfigRegistry.addConfig(DeviceId.deviceId("1.1.1.1"), DeviceCapability.class); |
| device1Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| |
| //Device2 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "2.2.2.2"); |
| addDevice(DEVICE2, builder); |
| DeviceCapability device2Cap = netConfigRegistry.addConfig(DeviceId.deviceId("2.2.2.2"), DeviceCapability.class); |
| device2Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| |
| //Device3 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "3.3.3.3"); |
| addDevice(DEVICE3, builder); |
| DeviceCapability device3Cap = netConfigRegistry.addConfig(DeviceId.deviceId("3.3.3.3"), DeviceCapability.class); |
| device3Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| |
| //Device4 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "4.4.4.4"); |
| addDevice(DEVICE4, builder); |
| DeviceCapability device4Cap = netConfigRegistry.addConfig(DeviceId.deviceId("4.4.4.4"), DeviceCapability.class); |
| device4Cap.setLabelStackCap(true) |
| .setLocalLabelCap(false) |
| .setSrCap(true) |
| .apply(); |
| |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| List<Link> links = new LinkedList<>(); |
| links.add(link1); |
| links.add(link2); |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(2.0))); |
| } |
| |
| /** |
| * Test case with empty constraints. |
| */ |
| @Test |
| public void testpathComputationCase14() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, false, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, false, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, false, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, false, 80); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(2.0))); |
| } |
| |
| /** |
| * Test case with constraints as null. |
| */ |
| @Test |
| public void testpathComputationCase15() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, false, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, false, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, false, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, false, 80); |
| |
| List<Constraint> constraints = null; |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(2.0))); |
| } |
| |
| /** |
| * Path with cost constraint. |
| */ |
| @Test |
| public void testpathComputationCase16() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, true, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, true, 100); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, true, 10); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, true, 10); |
| Link link5 = addLink(DEVICE4, 90, DEVICE5, 100, true, 20); |
| |
| CostConstraint costConst = CostConstraint.of(COST); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(costConst); |
| |
| TeLinkConfig teLinkConfig = netConfigRegistry.addConfig(LinkKey.linkKey(link1), TeLinkConfig.class); |
| teLinkConfig.igpCost(50) |
| .apply(); |
| |
| |
| TeLinkConfig teLinkConfig2 = netConfigRegistry.addConfig(LinkKey.linkKey(link2), TeLinkConfig.class); |
| teLinkConfig2.igpCost(100) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig3 = netConfigRegistry.addConfig(LinkKey.linkKey(link3), TeLinkConfig.class); |
| teLinkConfig3.igpCost(10) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig4 = netConfigRegistry.addConfig(LinkKey.linkKey(link4), TeLinkConfig.class); |
| teLinkConfig4.igpCost(10) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig5 = netConfigRegistry.addConfig(LinkKey.linkKey(link5), TeLinkConfig.class); |
| teLinkConfig5.igpCost(20) |
| .apply(); |
| |
| Graph<TopologyVertex, TopologyEdge> graph = new AdjacencyListsGraph<>(of(D1, D2, D3, D4, D5), |
| of(new DefaultTopologyEdge(D1, D2, link1), |
| new DefaultTopologyEdge(D2, D4, link2), |
| new DefaultTopologyEdge(D1, D3, link3), |
| new DefaultTopologyEdge(D3, D4, link4), |
| new DefaultTopologyEdge(D4, D5, link5))); |
| |
| GraphPathSearch.Result<TopologyVertex, TopologyEdge> result = |
| graphSearch().search(graph, D1, D5, weight(constraints), ALL_PATHS); |
| ImmutableSet.Builder<Path> builder = ImmutableSet.builder(); |
| for (org.onlab.graph.Path<TopologyVertex, TopologyEdge> path : result.paths()) { |
| builder.add(networkPath(path)); |
| } |
| |
| List<Link> links = new LinkedList<>(); |
| links.add(link3); |
| links.add(link4); |
| links.add(link5); |
| assertThat(builder.build().iterator().next().links(), is(links)); |
| assertThat(builder.build().iterator().next().weight(), is(ScalarWeight.toWeight(40.0))); |
| } |
| |
| /** |
| * D3 doesn't support capability constraint, so path is L1-L2. |
| */ |
| @Test |
| public void testpathComputationCase17() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, false, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, false, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, false, 100); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, false, 80); |
| |
| CapabilityConstraint capabilityConst = CapabilityConstraint |
| .of(CapabilityConstraint.CapabilityType.WITHOUT_SIGNALLING_AND_WITHOUT_SR); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(capabilityConst); |
| //Device1 |
| DefaultAnnotations.Builder builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "1.1.1.1"); |
| addDevice(DEVICE1, builder); |
| DeviceCapability device1Cap = netConfigRegistry.addConfig(DeviceId.deviceId("1.1.1.1"), DeviceCapability.class); |
| device1Cap.setLabelStackCap(false) |
| .setLocalLabelCap(true) |
| .setSrCap(false) |
| .apply(); |
| |
| //Device2 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "2.2.2.2"); |
| addDevice(DEVICE2, builder); |
| DeviceCapability device2Cap = netConfigRegistry.addConfig(DeviceId.deviceId("2.2.2.2"), DeviceCapability.class); |
| device2Cap.setLabelStackCap(false) |
| .setLocalLabelCap(true) |
| .setSrCap(false) |
| .apply(); |
| |
| //Device4 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "4.4.4.4"); |
| addDevice(DEVICE4, builder); |
| DeviceCapability device4Cap = netConfigRegistry.addConfig(DeviceId.deviceId("4.4.4.4"), DeviceCapability.class); |
| device4Cap.setLabelStackCap(false) |
| .setLocalLabelCap(true) |
| .setSrCap(false) |
| .apply(); |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| List<Link> links = new LinkedList<>(); |
| links.add(link1); |
| links.add(link2); |
| |
| assertThat(paths.iterator().next().links(), is(links)); |
| assertThat(paths.iterator().next().weight(), is(ScalarWeight.toWeight(2.0))); |
| } |
| |
| /** |
| * L2 doesn't support cost constraint and D3 doesn't support capability constraint, both constraint fails hence no |
| * path. |
| */ |
| @Test |
| public void testpathComputationCase18() { |
| Link link1 = addLink(DEVICE1, 10, DEVICE2, 20, true, 50); |
| Link link2 = addLink(DEVICE2, 30, DEVICE4, 40, false, 20); |
| Link link3 = addLink(DEVICE1, 80, DEVICE3, 70, true, 10); |
| Link link4 = addLink(DEVICE3, 60, DEVICE4, 50, true, 10); |
| |
| CapabilityConstraint capabilityConst = CapabilityConstraint |
| .of(CapabilityConstraint.CapabilityType.WITHOUT_SIGNALLING_AND_WITHOUT_SR); |
| CostConstraint costConst = CostConstraint.of(COST); |
| |
| TeLinkConfig teLinkConfig = netConfigRegistry.addConfig(LinkKey.linkKey(link1), TeLinkConfig.class); |
| teLinkConfig.igpCost(50) |
| .apply(); |
| |
| |
| TeLinkConfig teLinkConfig2 = netConfigRegistry.addConfig(LinkKey.linkKey(link2), TeLinkConfig.class); |
| teLinkConfig2.igpCost(20) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig3 = netConfigRegistry.addConfig(LinkKey.linkKey(link3), TeLinkConfig.class); |
| teLinkConfig3.igpCost(10) |
| .apply(); |
| |
| TeLinkConfig teLinkConfig4 = netConfigRegistry.addConfig(LinkKey.linkKey(link4), TeLinkConfig.class); |
| teLinkConfig4.igpCost(10) |
| .apply(); |
| |
| List<Constraint> constraints = new LinkedList<>(); |
| constraints.add(capabilityConst); |
| constraints.add(costConst); |
| //Device1 |
| DefaultAnnotations.Builder builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "1.1.1.1"); |
| addDevice(DEVICE2, builder); |
| DeviceCapability device1Cap = netConfigRegistry.addConfig(DeviceId.deviceId("1.1.1.1"), DeviceCapability.class); |
| device1Cap.setLabelStackCap(false) |
| .setLocalLabelCap(true) |
| .setSrCap(false) |
| .apply(); |
| |
| //Device2 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "2.2.2.2"); |
| addDevice(DEVICE2, builder); |
| DeviceCapability device2Cap = netConfigRegistry.addConfig(DeviceId.deviceId("2.2.2.2"), DeviceCapability.class); |
| device2Cap.setLabelStackCap(false) |
| .setLocalLabelCap(true) |
| .setSrCap(false) |
| .apply(); |
| |
| //Device4 |
| builder = DefaultAnnotations.builder(); |
| builder.set(AnnotationKeys.TYPE, L3); |
| builder.set(LSRID, "4.4.4.4"); |
| addDevice(DEVICE4, builder); |
| DeviceCapability device4Cap = netConfigRegistry.addConfig(DeviceId.deviceId("4.4.4.4"), DeviceCapability.class); |
| device4Cap.setLabelStackCap(false) |
| .setLocalLabelCap(true) |
| .setSrCap(false) |
| .apply(); |
| Set<Path> paths = computePath(link1, link2, link3, link4, constraints); |
| |
| assertThat(paths, is(new HashSet<>())); |
| } |
| |
| private void addDevice(String device, DefaultAnnotations.Builder builder) { |
| deviceService.addDevice(new DefaultDevice(ProviderId.NONE, deviceId(device), Type.ROUTER, |
| UNKNOWN, UNKNOWN, UNKNOWN, |
| UNKNOWN, new ChassisId(), builder.build())); |
| } |
| } |