Examples with TransportZone org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.transport.zones.TransportZone used on opensource projects

Example 41 with TransportZone

use of org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.transport.zones.TransportZone in project genius by opendaylight.

the class ItmManagerRpcService method getTunnelEndPointByDpnIdFromTranPortZone.

private Map<BigInteger, ComputesBuilder> getTunnelEndPointByDpnIdFromTranPortZone(Collection<BigInteger> dpnIds) throws ReadFailedException {
    TransportZones transportZones = singleTransactionDataBroker.syncRead(LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.builder(TransportZones.class).build());
    if (transportZones.getTransportZone() == null || transportZones.getTransportZone().isEmpty()) {
        throw new IllegalStateException("Failed to find transport zones in config datastore");
    }
    Map<BigInteger, ComputesBuilder> result = new HashMap<>();
    for (TransportZone transportZone : transportZones.getTransportZone()) {
        if (transportZone.getSubnets() == null || transportZone.getSubnets().isEmpty()) {
            LOG.debug("Transport Zone {} has no subnets", transportZone.getZoneName());
            continue;
        }
        for (Subnets sub : transportZone.getSubnets()) {
            if (sub.getVteps() == null || sub.getVteps().isEmpty()) {
                LOG.debug("Transport Zone {} subnet {} has no vteps configured", transportZone.getZoneName(), sub.getPrefix());
                continue;
            }
            for (Vteps vtep : sub.getVteps()) {
                if (dpnIds.contains(vtep.getDpnId())) {
                    result.putIfAbsent(vtep.getDpnId(), new ComputesBuilder().setZoneName(transportZone.getZoneName()).setPrefix(sub.getPrefix()).setDpnId(vtep.getDpnId()).setPortName(vtep.getPortname()).setNodeId(getNodeId(vtep.getDpnId())).setTepIp(Collections.singletonList(vtep.getIpAddress())));
                }
            }
        }
    }
    for (BigInteger dpnId : dpnIds) {
        if (!result.containsKey(dpnId)) {
            throw new IllegalStateException("Failed to find dpn id " + dpnId + " in transport zone");
        }
    }
    return result;
}

Example 42 with TransportZone

use of org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.transport.zones.TransportZone in project genius by opendaylight.

the class TepCommandHelperTest method setupMocks.

private void setupMocks() {
    System.setOut(new PrintStream(outContent));
    instanceIdentifierList.add(transportZoneIdentifier);
    instanceIdentifierList.add(vtepsIdentifier);
    instanceIdentifierList.add(subnetsIdentifier);
    DeviceVteps deviceVteps = new DeviceVtepsBuilder().setIpAddress(ipAddress1).setKey(new DeviceVtepsKey(ipAddress1, sourceDevice)).setNodeId(sourceDevice).setTopologyId(destinationDevice).build();
    vteps = new VtepsBuilder().setPortname(portName1).setDpnId(dpId2).setIpAddress(ipAddress1).setKey(new VtepsKey(dpId2, portName1)).build();
    vtepsTest = new VtepsBuilder().build();
    deviceVtepsList.add(deviceVteps);
    vtepsList.add(vteps);
    subnetsTest = new SubnetsBuilder().setGatewayIp(gtwyIp1).setVlanId(vlanId).setKey(new SubnetsKey(ipPrefixTest)).setDeviceVteps(deviceVtepsList).setVteps(vtepsList).build();
    subnetsList.add(subnetsTest);
    transportZone = new TransportZoneBuilder().setZoneName(transportZone1).setTunnelType(tunnelType1).setKey(new TransportZoneKey(transportZone1)).setSubnets(subnetsList).build();
    transportZoneNew = new TransportZoneBuilder().setZoneName(transportZone1).setTunnelType(tunnelType2).setKey(new TransportZoneKey(transportZone1)).setSubnets(subnetsList).build();
    transportZoneList.add(transportZone);
    transportZones = new TransportZonesBuilder().setTransportZone(transportZoneList).build();
    transportZonesNew = new TransportZonesBuilder().setTransportZone(transportZoneListNew).build();
    tunnelMonitorInterval = new TunnelMonitorIntervalBuilder().setInterval(10000).build();
    tunnelMonitorParams = new TunnelMonitorParamsBuilder().setEnabled(true).build();
    InternalTunnel internalTunnelTest = new InternalTunnelBuilder().setSourceDPN(dpId1).setDestinationDPN(dpId2).setTunnelInterfaceNames(Collections.singletonList(tunnelInterfaceName)).setKey(new InternalTunnelKey(dpId1, dpId2, tunnelType1)).setTransportType(tunnelType1).build();
    internalTunnelList.add(internalTunnelTest);
    StateTunnelList stateTunnelListTest = new StateTunnelListBuilder().setTunnelInterfaceName(tunnelInterfaceName).setOperState(TunnelOperStatus.Up).build();
    stateTunnelList.add(stateTunnelListTest);
    lowerLayerIfList.add(dpId1.toString());
    interfaceTest = new InterfaceBuilder().setOperStatus(Interface.OperStatus.Up).setAdminStatus(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.AdminStatus.Up).setPhysAddress(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress.getDefaultInstance("AA:AA:AA:AA:AA:AA")).setIfIndex(100).setLowerLayerIf(lowerLayerIfList).setType(L2vlan.class).build();
    interfaceTestNew = ItmUtils.buildTunnelInterface(dpId1, tunnelInterfaceName, destinationDevice, enabled, TunnelTypeVxlan.class, ipAddress1, ipAddress2, gtwyIp1, vlanId, true, enabled, monitorProtocol, interval, false, null);
    doReturn(mockReadTx).when(dataBroker).newReadOnlyTransaction();
    doReturn(mockWriteTx).when(dataBroker).newWriteOnlyTransaction();
    doReturn(Futures.immediateCheckedFuture(null)).when(mockWriteTx).submit();
}

Example 43 with TransportZone

use of org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.transport.zones.TransportZone in project genius by opendaylight.

the class ItmExternalTunnelAddTest method testBuildHwVtepsTunnels.

@Test
public void testBuildHwVtepsTunnels() {
    final Interface extTunnelIf1 = ItmUtils.buildTunnelInterface(dpId1, "tun030025bd04f", String.format("%s %s", tunnelType1.getName(), "Trunk Interface"), true, tunnelType1, tunnelEndPointsVxlan.getIpAddress(), ipAddress1, gtwyIp1, vlanId, false, false, monitorProtocol, ITMConstants.BFD_DEFAULT_MONITOR_INTERVAL, false, null);
    final Interface hwTunnelIf2 = ItmUtils.buildHwTunnelInterface("tun9a55a9c38f2", String.format("%s %s", tunnelType1.getName(), "Trunk Interface"), true, hwVtep1.getTopoId(), hwVtep1.getNodeId(), tunnelType1, ipAddress1, ipAddress3, gtwyIp1, false, monitorProtocol, ITMConstants.BFD_DEFAULT_MONITOR_INTERVAL);
    final Interface extTunnelIf3 = ItmUtils.buildTunnelInterface(dpId1, "tun17c6e20c283", String.format("%s %s", tunnelType1.getName(), "Trunk Interface"), true, tunnelType1, tunnelEndPointsVxlan.getIpAddress(), ipAddress2, gtwyIp1, vlanId, false, false, monitorProtocol, ITMConstants.BFD_DEFAULT_MONITOR_INTERVAL, false, null);
    final Interface hwTunnelIf4 = ItmUtils.buildHwTunnelInterface("tunaa109b6c8c5", String.format("%s %s", tunnelType1.getName(), "Trunk Interface"), true, hwVtep1.getTopoId(), destination, tunnelType1, ipAddress2, ipAddress3, gtwyIp1, false, monitorProtocol, ITMConstants.BFD_DEFAULT_MONITOR_INTERVAL);
    final Interface hwTunnelIf5 = ItmUtils.buildHwTunnelInterface("tund903ed434d5", String.format("%s %s", tunnelType1.getName(), "Trunk Interface"), true, hwVtep1.getTopoId(), hwVtep1.getNodeId(), tunnelType1, ipAddress1, ipAddress2, gtwyIp1, false, monitorProtocol, ITMConstants.BFD_DEFAULT_MONITOR_INTERVAL);
    final Interface hwTunnelIf6 = ItmUtils.buildHwTunnelInterface("tunc3315b110a6", String.format("%s %s", tunnelType1.getName(), "Trunk Interface"), true, hwVtep1.getTopoId(), destination, tunnelType1, ipAddress2, ipAddress1, gtwyIp1, false, monitorProtocol, ITMConstants.BFD_DEFAULT_MONITOR_INTERVAL);
    final ExternalTunnel externalTunnel1 = ItmUtils.buildExternalTunnel(getExternalTunnelKey(dpId1.toString()), getExternalTunnelKey(source), tunnelType1, "tun030025bd04f");
    final ExternalTunnel externalTunnel2 = ItmUtils.buildExternalTunnel(getExternalTunnelKey(source), getExternalTunnelKey(dpId1.toString()), tunnelType1, "tun9a55a9c38f2");
    final ExternalTunnel externalTunnel3 = ItmUtils.buildExternalTunnel(getExternalTunnelKey(dpId1.toString()), getExternalTunnelKey(destination), tunnelType1, "tun17c6e20c283");
    final ExternalTunnel externalTunnel4 = ItmUtils.buildExternalTunnel(getExternalTunnelKey(destination), getExternalTunnelKey(dpId1.toString()), tunnelType1, "tunaa109b6c8c5");
    final ExternalTunnel externalTunnel5 = ItmUtils.buildExternalTunnel(getExternalTunnelKey(source), getExternalTunnelKey(destination), tunnelType1, "tund903ed434d5");
    final ExternalTunnel externalTunnel6 = ItmUtils.buildExternalTunnel(getExternalTunnelKey(destination), getExternalTunnelKey(source), tunnelType1, "tunc3315b110a6");
    InstanceIdentifier<TransportZone> transportZoneIdentifier = InstanceIdentifier.builder(TransportZones.class).child(TransportZone.class, new TransportZoneKey(transportZone1)).build();
    final InstanceIdentifier<Interface> ifIID1 = InstanceIdentifier.builder(Interfaces.class).child(Interface.class, new InterfaceKey("tun030025bd04f")).build();
    final InstanceIdentifier<Interface> ifIID2 = InstanceIdentifier.builder(Interfaces.class).child(Interface.class, new InterfaceKey("tun9a55a9c38f2")).build();
    final InstanceIdentifier<Interface> ifIID3 = InstanceIdentifier.builder(Interfaces.class).child(Interface.class, new InterfaceKey("tun17c6e20c283")).build();
    final InstanceIdentifier<Interface> ifIID4 = InstanceIdentifier.builder(Interfaces.class).child(Interface.class, new InterfaceKey("tunaa109b6c8c5")).build();
    final InstanceIdentifier<Interface> ifIID5 = InstanceIdentifier.builder(Interfaces.class).child(Interface.class, new InterfaceKey("tund903ed434d5")).build();
    final InstanceIdentifier<Interface> ifIID6 = InstanceIdentifier.builder(Interfaces.class).child(Interface.class, new InterfaceKey("tunc3315b110a6")).build();
    final InstanceIdentifier<ExternalTunnel> externalTunnelIdentifier1 = InstanceIdentifier.create(ExternalTunnelList.class).child(ExternalTunnel.class, new ExternalTunnelKey(getExternalTunnelKey(source), getExternalTunnelKey(dpId1.toString()), tunnelType1));
    final InstanceIdentifier<ExternalTunnel> externalTunnelIdentifier2 = InstanceIdentifier.create(ExternalTunnelList.class).child(ExternalTunnel.class, new ExternalTunnelKey(getExternalTunnelKey(dpId1.toString()), getExternalTunnelKey(source), tunnelType1));
    final InstanceIdentifier<ExternalTunnel> externalTunnelIdentifier3 = InstanceIdentifier.create(ExternalTunnelList.class).child(ExternalTunnel.class, new ExternalTunnelKey(getExternalTunnelKey(destination), getExternalTunnelKey(dpId1.toString()), tunnelType1));
    final InstanceIdentifier<ExternalTunnel> externalTunnelIdentifier4 = InstanceIdentifier.create(ExternalTunnelList.class).child(ExternalTunnel.class, new ExternalTunnelKey(getExternalTunnelKey(dpId1.toString()), getExternalTunnelKey(destination), tunnelType1));
    final InstanceIdentifier<ExternalTunnel> externalTunnelIdentifier5 = InstanceIdentifier.create(ExternalTunnelList.class).child(ExternalTunnel.class, new ExternalTunnelKey(getExternalTunnelKey(destination), getExternalTunnelKey(source), tunnelType1));
    final InstanceIdentifier<ExternalTunnel> externalTunnelIdentifier6 = InstanceIdentifier.create(ExternalTunnelList.class).child(ExternalTunnel.class, new ExternalTunnelKey(getExternalTunnelKey(source), getExternalTunnelKey(destination), tunnelType1));
    Optional<TransportZone> optionalTransportZone = Optional.of(transportZone);
    doReturn(Futures.immediateCheckedFuture(optionalTransportZone)).when(mockReadTx).read(LogicalDatastoreType.CONFIGURATION, transportZoneIdentifier);
    externalTunnelAddWorker.buildHwVtepsTunnels(cfgdDpnListVxlan, null);
    externalTunnelAddWorker.buildHwVtepsTunnels(null, cfgdHwVtepsList);
    verify(mockWriteTx, times(2)).merge(LogicalDatastoreType.CONFIGURATION, ifIID1, extTunnelIf1, true);
    verify(mockWriteTx, times(2)).merge(LogicalDatastoreType.CONFIGURATION, externalTunnelIdentifier1, externalTunnel1, true);
    verify(mockWriteTx, times(2)).merge(LogicalDatastoreType.CONFIGURATION, ifIID2, hwTunnelIf2, true);
    verify(mockWriteTx, times(2)).merge(LogicalDatastoreType.CONFIGURATION, externalTunnelIdentifier2, externalTunnel2, true);
    verify(mockWriteTx).merge(LogicalDatastoreType.CONFIGURATION, ifIID3, extTunnelIf3, true);
    verify(mockWriteTx).merge(LogicalDatastoreType.CONFIGURATION, externalTunnelIdentifier3, externalTunnel3, true);
    verify(mockWriteTx).merge(LogicalDatastoreType.CONFIGURATION, ifIID4, hwTunnelIf4, true);
    verify(mockWriteTx).merge(LogicalDatastoreType.CONFIGURATION, externalTunnelIdentifier4, externalTunnel4, true);
    verify(mockWriteTx).merge(LogicalDatastoreType.CONFIGURATION, ifIID5, hwTunnelIf5, true);
    verify(mockWriteTx).merge(LogicalDatastoreType.CONFIGURATION, externalTunnelIdentifier5, externalTunnel5, true);
    verify(mockWriteTx).merge(LogicalDatastoreType.CONFIGURATION, ifIID6, hwTunnelIf6, true);
    verify(mockWriteTx).merge(LogicalDatastoreType.CONFIGURATION, externalTunnelIdentifier6, externalTunnel6, true);
}

Example 44 with TransportZone

use of org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.transport.zones.TransportZone in project genius by opendaylight.

the class ItmExternalTunnelAddTest method setupMocks.

private void setupMocks() {
    ipAddress1 = IpAddressBuilder.getDefaultInstance(tepIp1);
    ipAddress2 = IpAddressBuilder.getDefaultInstance(tepIp2);
    ipAddress3 = IpAddressBuilder.getDefaultInstance(tepIp3);
    gtwyIp1 = IpAddressBuilder.getDefaultInstance(gwyIp1);
    gtwyIp2 = IpAddressBuilder.getDefaultInstance(gwyIp2);
    ipPrefixTest = IpPrefixBuilder.getDefaultInstance(subnetIp + "/24");
    tunnelEndPointsVxlan = new TunnelEndPointsBuilder().setVLANID(vlanId).setPortname(portName1).setIpAddress(ipAddress3).setGwIpAddress(gtwyIp1).setInterfaceName(parentInterfaceName).setTzMembership(ItmUtils.createTransportZoneMembership(transportZone1)).setTunnelType(tunnelType1).setSubnetMask(ipPrefixTest).build();
    tunnelEndPointsListVxlan.add(tunnelEndPointsVxlan);
    dpntePsInfoVxlan = new DPNTEPsInfoBuilder().setDPNID(dpId1).setUp(true).setKey(new DPNTEPsInfoKey(dpId1)).setTunnelEndPoints(tunnelEndPointsListVxlan).build();
    deviceVteps1 = new DeviceVtepsBuilder().setIpAddress(ipAddress1).setKey(new DeviceVtepsKey(ipAddress1, source)).setNodeId(source).setTopologyId("hwvtep:1").build();
    deviceVteps2 = new DeviceVtepsBuilder().setIpAddress(ipAddress2).setKey(new DeviceVtepsKey(ipAddress2, destination)).setNodeId(destination).setTopologyId("hwvtep:1").build();
    hwVtep1 = new HwVtep();
    hwVtep1.setTransportZone(transportZone1);
    hwVtep1.setGatewayIP(gtwyIp1);
    hwVtep1.setHwIp(ipAddress1);
    hwVtep1.setTunnelType(tunnelType1);
    hwVtep1.setVlanID(vlanId);
    hwVtep1.setTopoId("hwvtep:1");
    hwVtep1.setNodeId(source);
    hwVtep1.setIpPrefix(ipPrefixTest);
    cfgdDpnListVxlan.add(dpntePsInfoVxlan);
    cfgdHwVtepsList.add(hwVtep1);
    bigIntegerList.add(dpId1);
    deviceVtepsList.add(deviceVteps1);
    deviceVtepsList.add(deviceVteps2);
    vtepsTest = new VtepsBuilder().setDpnId(dpId1).setIpAddress(ipAddress3).setPortname(portName1).setKey(new VtepsKey(dpId1, portName1)).build();
    vtepsList.add(vtepsTest);
    dpnEndpointsVxlan = new DpnEndpointsBuilder().setDPNTEPsInfo(cfgdDpnListVxlan).build();
    transportZone = new TransportZoneBuilder().setTunnelType(tunnelType1).setZoneName(transportZone1).setKey(new TransportZoneKey(transportZone1)).setSubnets(subnetsList).build();
    idOutputOptional1 = RpcResultBuilder.success(expectedId1).buildFuture();
    getIdInput1 = new AllocateIdInputBuilder().setPoolName(ITMConstants.ITM_IDPOOL_NAME).setIdKey("1:phy0:100:192.168.56.101:192.168.56.40:VXLAN").build();
    doReturn(idOutputOptional1).when(idManagerService).allocateId(getIdInput1);
    idOutputOptional2 = RpcResultBuilder.success(expectedId2).buildFuture();
    getIdInput2 = new AllocateIdInputBuilder().setPoolName(ITMConstants.ITM_IDPOOL_NAME).setIdKey("1:phy0:100:192.168.56.101:192.168.56.30:VXLAN").build();
    doReturn(idOutputOptional2).when(idManagerService).allocateId(getIdInput2);
    idOutputOptional3 = RpcResultBuilder.success(expectedId3).buildFuture();
    getIdInput3 = new AllocateIdInputBuilder().setPoolName(ITMConstants.ITM_IDPOOL_NAME).setIdKey("hwvtep:1:hwvtep://192.168.101.30:6640/physicalswitch/s3:192.168.56.30:192.168.56.101:VXLAN").build();
    doReturn(idOutputOptional3).when(idManagerService).allocateId(getIdInput3);
    idOutputOptional4 = RpcResultBuilder.success(expectedId4).buildFuture();
    getIdInput4 = new AllocateIdInputBuilder().setPoolName(ITMConstants.ITM_IDPOOL_NAME).setIdKey("hwvtep:1:hwvtep://192.168.101.40:6640/physicalswitch/s4:192.168.56.40:192.168.56.101:VXLAN").build();
    doReturn(idOutputOptional4).when(idManagerService).allocateId(getIdInput4);
    idOutputOptional5 = RpcResultBuilder.success(expectedId5).buildFuture();
    getIdInput5 = new AllocateIdInputBuilder().setPoolName(ITMConstants.ITM_IDPOOL_NAME).setIdKey("hwvtep:1:hwvtep://192.168.101.30:6640/physicalswitch/s3:192.168.56.30:192.168.56.40:VXLAN").build();
    doReturn(idOutputOptional5).when(idManagerService).allocateId(getIdInput5);
    idOutputOptional6 = RpcResultBuilder.success(expectedId6).buildFuture();
    getIdInput6 = new AllocateIdInputBuilder().setPoolName(ITMConstants.ITM_IDPOOL_NAME).setIdKey("hwvtep:1:hwvtep://192.168.101.40:6640/physicalswitch/s4:192.168.56.40:192.168.56.30:VXLAN").build();
    doReturn(idOutputOptional6).when(idManagerService).allocateId(getIdInput6);
    tunnelMonitorParams = new TunnelMonitorParamsBuilder().setEnabled(true).build();
    tunnelMonitorInterval = new TunnelMonitorIntervalBuilder().setInterval(interval).build();
    trunkInterfaceName = ItmUtils.getTrunkInterfaceName(parentInterfaceName, String.valueOf(tunnelEndPointsVxlan.getIpAddress().getValue()), String.valueOf(ipAddress2.getValue()), tunnelType1.getName());
    interfaceIdentifier = ItmUtils.buildId(trunkInterfaceName);
    externalTunnelIdentifier = InstanceIdentifier.create(ExternalTunnelList.class).child(ExternalTunnel.class, new ExternalTunnelKey(String.valueOf(ipAddress2.getValue()), dpId1.toString(), tunnelType1));
    iface = ItmUtils.buildTunnelInterface(dpId1, trunkInterfaceName, String.format("%s %s", ItmUtils.convertTunnelTypetoString(tunnelType1), "Trunk Interface"), true, tunnelType1, ipAddress3, ipAddress2, gtwyIp1, tunnelEndPointsVxlan.getVLANID(), false, false, monitorProtocol, null, false, null);
    externalTunnel = ItmUtils.buildExternalTunnel(dpId1.toString(), String.valueOf(ipAddress2.getValue()), tunnelType1, trunkInterfaceName);
    subnets = new SubnetsBuilder().setGatewayIp(gtwyIp1).setVlanId(vlanId).setKey(new SubnetsKey(ipPrefixTest)).setVteps(vtepsList).setDeviceVteps(deviceVtepsList).build();
    subnetsList.add(subnets);
    doReturn(mockReadTx).when(dataBroker).newReadOnlyTransaction();
    doReturn(mockWriteTx).when(dataBroker).newWriteOnlyTransaction();
    doReturn(Futures.immediateCheckedFuture(null)).when(mockWriteTx).submit();
}

Example 45 with TransportZone

use of org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.transport.zones.TransportZone in project genius by opendaylight.

the class OvsdbTepRemoveConfigHelper method removeTepReceivedFromOvsdb.

/**
 * Removes the TEP from ITM configuration/operational Datastore in one of the following cases.
 * 1) default transport zone
 * 2) Configured transport zone
 * 3) Unhosted transport zone
 * Function checks for above three cases and calls other sub-function to remove the TEP
 *
 * @param tepIp TEP-IP address in string
 * @param strDpnId bridge datapath ID in string
 * @param tzName transport zone name in string
 * @param dataBroker data broker handle to perform operations on config/operational datastore
 * @param wrTx WriteTransaction object
 */
public static void removeTepReceivedFromOvsdb(String tepIp, String strDpnId, String tzName, DataBroker dataBroker, WriteTransaction wrTx) {
    BigInteger dpnId = BigInteger.valueOf(0);
    LOG.trace("Remove TEP: TEP-IP: {}, TZ name: {}, DPID: {}", tepIp, tzName, strDpnId);
    if (strDpnId != null && !strDpnId.isEmpty()) {
        dpnId = MDSALUtil.getDpnId(strDpnId);
    }
    // Get tep IP
    IpAddress tepIpAddress = IpAddressBuilder.getDefaultInstance(tepIp);
    TransportZone transportZone = null;
    // Case: TZ name is not given from OVS's other_config parameters.
    if (tzName == null) {
        tzName = ITMConstants.DEFAULT_TRANSPORT_ZONE;
        // add TEP into default-TZ
        transportZone = ItmUtils.getTransportZoneFromConfigDS(tzName, dataBroker);
        if (transportZone == null) {
            LOG.error("Error: default-transport-zone is not yet created.");
            return;
        }
        LOG.trace("Remove TEP from default-transport-zone.");
    } else {
        // Case: Add TEP into corresponding TZ created from Northbound.
        transportZone = ItmUtils.getTransportZoneFromConfigDS(tzName, dataBroker);
        if (transportZone == null) {
            // Case: TZ is not configured from Northbound, then add TEP into
            // "teps-in-not-hosted-transport-zone"
            LOG.trace("Removing TEP from teps-in-not-hosted-transport-zone list.");
            removeUnknownTzTepFromTepsNotHosted(tzName, tepIpAddress, dpnId, dataBroker, wrTx);
            return;
        } else {
            LOG.trace("Remove TEP from transport-zone already configured by Northbound.");
        }
    }
    // Remove TEP from (default transport-zone) OR (transport-zone already configured by Northbound)
    // Get subnet list of corresponding TZ created from Northbound.
    List<Subnets> subnetList = transportZone.getSubnets();
    if (subnetList == null || subnetList.isEmpty()) {
        LOG.trace("No subnet list in transport-zone. Nothing to do.");
    } else {
        IpPrefix subnetMaskObj = ItmUtils.getDummySubnet();
        List<Vteps> vtepList = null;
        // subnet list already exists case; check for dummy-subnet
        for (Subnets subnet : subnetList) {
            if (subnet.getKey().getPrefix().equals(subnetMaskObj)) {
                LOG.trace("Subnet exists in the subnet list of transport-zone {}.", tzName);
                // get vtep list of existing subnet
                vtepList = subnet.getVteps();
                break;
            }
        }
        if (vtepList == null || vtepList.isEmpty()) {
            // case: vtep list does not exist or it has no elements
            LOG.trace("No vtep list in subnet list of transport-zone. Nothing to do.");
        } else {
            // case: vtep list has elements
            boolean vtepFound = false;
            Vteps oldVtep = null;
            for (Vteps vtep : vtepList) {
                if (vtep.getDpnId().equals(dpnId)) {
                    vtepFound = true;
                    oldVtep = vtep;
                    break;
                }
            }
            if (vtepFound) {
                // vtep is found, update it with tep-ip
                LOG.trace("Remove TEP from vtep list in subnet list of transport-zone.");
                dpnId = oldVtep.getDpnId();
                String portName = oldVtep.getPortname();
                removeVtepFromTZConfig(subnetMaskObj, tzName, dpnId, portName, wrTx);
            } else {
                LOG.trace("TEP is not found in the vtep list in subnet list of transport-zone. Nothing to do.");
            }
        }
    }
}