Examples with PathComputer org.openkilda.pce.PathComputer used on opensource projects

Example 51 with PathComputer

use of org.openkilda.pce.PathComputer in project open-kilda by telstra.

the class MaxLatencyPathComputationStrategyBaseTest method maxLatencyIssueTest.

@Test
public void maxLatencyIssueTest() throws Exception {
    createMaxLatencyIssueTopo();
    Flow flow = Flow.builder().flowId("test flow").srcSwitch(getSwitchById("00:01")).srcPort(15).destSwitch(getSwitchById("00:04")).destPort(15).bandwidth(500).encapsulationType(FlowEncapsulationType.TRANSIT_VLAN).pathComputationStrategy(PathComputationStrategy.MAX_LATENCY).maxLatency(30L).build();
    PathComputer pathComputer = pathComputerFactory.getPathComputer();
    GetPathsResult path = pathComputer.getPath(flow);
    assertNotNull(path);
    assertEquals(path.getForward().getSegments().size(), 3);
}

Example 52 with PathComputer

use of org.openkilda.pce.PathComputer in project open-kilda by telstra.

the class MaxLatencyPathComputationStrategyBaseTest method shouldUseSlowLinkInsidePath.

@Test
public void shouldUseSlowLinkInsidePath() throws Exception {
    createTwoLinksInsidePathTopo();
    Flow flow = Flow.builder().flowId("test flow").srcSwitch(getSwitchById("00:01")).srcPort(15).destSwitch(getSwitchById("00:06")).destPort(15).bandwidth(500).encapsulationType(FlowEncapsulationType.TRANSIT_VLAN).pathComputationStrategy(PathComputationStrategy.MAX_LATENCY).maxLatency(30L).build();
    PathComputer pathComputer = pathComputerFactory.getPathComputer();
    GetPathsResult path = pathComputer.getPath(flow);
    assertNotNull(path);
    assertEquals(path.getForward().getSegments().size(), 5);
    assertEquals(path.getForward().getLatency(), 14);
}

Example 53 with PathComputer

use of org.openkilda.pce.PathComputer in project open-kilda by telstra.

the class MaxLatencyPathComputationStrategyBaseTest method maxLatencyStratWithZeroLatency.

/**
 * Special case: flow with MAX_LATENCY strategy and 'max-latency' set to 0 should pick path with least latency.
 */
@Test
public void maxLatencyStratWithZeroLatency() throws RecoverableException, UnroutableFlowException {
    // 1 - 2 - 4
    // + 3 +
    // path 1>2>4 has less latency than 1>3>4
    createDiamond(IslStatus.ACTIVE, IslStatus.ACTIVE, 100, 100, "00:", 1, 100, 101);
    // when: request a flow with MAX_LATENCY strategy and 'max-latency' set to 0
    Flow flow = Flow.builder().flowId("test flow").srcSwitch(getSwitchById("00:01")).srcPort(15).destSwitch(getSwitchById("00:04")).destPort(15).bandwidth(500).encapsulationType(FlowEncapsulationType.TRANSIT_VLAN).pathComputationStrategy(PathComputationStrategy.MAX_LATENCY).maxLatency(0L).build();
    PathComputer pathComputer = new InMemoryPathComputer(availableNetworkFactory, new BestWeightAndShortestPathFinder(5), config);
    GetPathsResult pathsResult = pathComputer.getPath(flow);
    // then: system returns a path with least weight
    assertFalse(pathsResult.isBackUpPathComputationWayUsed());
    assertThat(pathsResult.getForward().getSegments().get(1).getSrcSwitchId(), equalTo(new SwitchId("00:02")));
    assertThat(pathsResult.getReverse().getSegments().get(1).getSrcSwitchId(), equalTo(new SwitchId("00:02")));
}

Example 54 with PathComputer

use of org.openkilda.pce.PathComputer in project open-kilda by telstra.

the class FlowUpdateHubBolt method init.

@Override
protected void init() {
    AvailableNetworkFactory availableNetworkFactory = new AvailableNetworkFactory(pathComputerConfig, persistenceManager.getRepositoryFactory());
    PathComputer pathComputer = new PathComputerFactory(pathComputerConfig, availableNetworkFactory).getPathComputer();
    FlowResourcesManager resourcesManager = new FlowResourcesManager(persistenceManager, flowResourcesConfig);
    service = new FlowUpdateService(this, persistenceManager, pathComputer, resourcesManager, config.getPathAllocationRetriesLimit(), config.getPathAllocationRetryDelay(), config.getResourceAllocationRetriesLimit(), config.getSpeakerCommandRetriesLimit());
}

Example 55 with PathComputer

use of org.openkilda.pce.PathComputer in project open-kilda by telstra.

the class FlowRerouteHubBolt method init.

@Override
protected void init() {
    AvailableNetworkFactory availableNetworkFactory = new AvailableNetworkFactory(pathComputerConfig, persistenceManager.getRepositoryFactory());
    PathComputer pathComputer = new PathComputerFactory(pathComputerConfig, availableNetworkFactory).getPathComputer();
    FlowResourcesManager resourcesManager = new FlowResourcesManager(persistenceManager, flowResourcesConfig);
    service = new FlowRerouteService(this, persistenceManager, pathComputer, resourcesManager, config.getPathAllocationRetriesLimit(), config.getPathAllocationRetryDelay(), config.getResourceAllocationRetriesLimit(), config.getSpeakerCommandRetriesLimit());
}