Examples with VpnInterface org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.vpn.interfaces.VpnInterface used on opensource projects

Example 56 with VpnInterface

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.vpn.interfaces.VpnInterface in project netvirt by opendaylight.

the class EvpnDnatFlowProgrammer method onRemoveFloatingIp.

public void onRemoveFloatingIp(final BigInteger dpnId, final String vpnName, final String externalIp, final String floatingIpInterface, final String floatingIpPortMacAddress, final long routerId, WriteTransaction removeFlowInvTx) {
    /*
     *  1) Remove the flow INTERNAL_TUNNEL_TABLE (table=36)-> PDNAT_TABLE (table=25) (SNAT VM on DPN1 is
     *     responding back to FIP VM on DPN2) {SNAT to DNAT traffic on different Hypervisor}
     *
     *  2) Remove the flow L3_FIB_TABLE (table=21)-> PDNAT_TABLE (table=25) (FIP VM1 to FIP VM2
     *    Traffic on Same Hypervisor) {DNAT to DNAT on Same Hypervisor}
     *
     *  3) Remove the flow L3_GW_MAC_TABLE (table=19)-> PDNAT_TABLE (table=25)
     *    (DC-GW is responding back to FIP VM) {DNAT Reverse traffic})
     *
     */
    String rd = NatUtil.getVpnRd(dataBroker, vpnName);
    if (rd == null) {
        LOG.error("onRemoveFloatingIp : Could not retrieve RD value from VPN Name {}  ", vpnName);
        return;
    }
    long vpnId = NatUtil.getVpnId(dataBroker, vpnName);
    if (vpnId == NatConstants.INVALID_ID) {
        LOG.error("onRemoveFloatingIp : Invalid Vpn Id is found for Vpn Name {}", vpnName);
        return;
    }
    long l3Vni = NatEvpnUtil.getL3Vni(dataBroker, rd);
    if (l3Vni == NatConstants.DEFAULT_L3VNI_VALUE) {
        LOG.debug("onRemoveFloatingIp : L3VNI value is not configured in Internet VPN {} and RD {} " + "Carve-out L3VNI value from OpenDaylight VXLAN VNI Pool and continue with installing " + "DNAT flows for FloatingIp {}", vpnName, rd, externalIp);
        l3Vni = NatOverVxlanUtil.getInternetVpnVni(idManager, vpnName, routerId).longValue();
    }
    String fibExternalIp = NatUtil.validateAndAddNetworkMask(externalIp);
    // Remove Prefix from BGP
    NatUtil.removePrefixFromBGP(bgpManager, fibManager, rd, fibExternalIp, vpnName, LOG);
    // Remove custom FIB routes flow for L3_FIB_TABLE (table=21)-> PDNAT_TABLE (table=25)
    RemoveFibEntryInput input = new RemoveFibEntryInputBuilder().setVpnName(vpnName).setSourceDpid(dpnId).setIpAddress(fibExternalIp).setServiceId(l3Vni).setIpAddressSource(RemoveFibEntryInput.IpAddressSource.FloatingIP).build();
    Future<RpcResult<Void>> future = fibService.removeFibEntry(input);
    ListenableFuture<RpcResult<Void>> futureVxlan = JdkFutureAdapters.listenInPoolThread(future);
    final long finalL3Vni = l3Vni;
    Futures.addCallback(futureVxlan, new FutureCallback<RpcResult<Void>>() {

        @Override
        public void onFailure(@Nonnull Throwable error) {
            LOG.error("onRemoveFloatingIp : Error {} in custom fib routes remove process for Floating " + "IP Prefix {} on DPN {}", error, externalIp, dpnId);
        }

        @Override
        public void onSuccess(@Nonnull RpcResult<Void> result) {
            if (result.isSuccessful()) {
                LOG.info("onRemoveFloatingIp : Successfully removed custom FIB routes for Floating " + "IP Prefix {} on DPN {}", externalIp, dpnId);
                /*  check if any floating IP information is available in vpn-to-dpn-list for given dpn id.
                      *  If exist any floating IP then do not remove
                      *  INTERNAL_TUNNEL_TABLE (table=36) -> PDNAT_TABLE (table=25) flow entry.
                      */
                if (!NatUtil.isFloatingIpPresentForDpn(dataBroker, dpnId, rd, vpnName, externalIp, false)) {
                    // Remove the flow for INTERNAL_TUNNEL_TABLE (table=36)-> PDNAT_TABLE (table=25)
                    removeTunnelTableEntry(dpnId, finalL3Vni, removeFlowInvTx);
                }
                // Remove the flow for L3_GW_MAC_TABLE (table=19)-> PDNAT_TABLE (table=25)
                NatEvpnUtil.removeL3GwMacTableEntry(dpnId, vpnId, floatingIpPortMacAddress, mdsalManager, removeFlowInvTx);
                NatUtil.waitForTransactionToComplete(removeFlowInvTx);
            } else {
                LOG.error("onRemoveFloatingIp : Error {} in rpc call to remove custom Fib entries for Floating " + "IP Prefix {} on DPN {}", result.getErrors(), externalIp, dpnId);
            }
        }
    }, MoreExecutors.directExecutor());
    // Read the FIP vpn-interface details from Operational l3vpn:vpn-interfaces model and delete from Operational DS
    InstanceIdentifier<VpnInterface> vpnIfIdentifier = NatUtil.getVpnInterfaceIdentifier(floatingIpInterface);
    Optional<VpnInterface> optionalVpnInterface = SingleTransactionDataBroker.syncReadOptionalAndTreatReadFailedExceptionAsAbsentOptional(dataBroker, LogicalDatastoreType.CONFIGURATION, vpnIfIdentifier);
    if (optionalVpnInterface.isPresent()) {
        WriteTransaction writeOperTxn = dataBroker.newWriteOnlyTransaction();
        for (VpnInstanceNames vpnInstance : optionalVpnInterface.get().getVpnInstanceNames()) {
            if (!vpnName.equals(vpnInstance.getVpnName())) {
                continue;
            }
            InstanceIdentifier<VpnInterfaceOpDataEntry> vpnOpIfIdentifier = NatUtil.getVpnInterfaceOpDataEntryIdentifier(floatingIpInterface, vpnName);
            writeOperTxn.delete(LogicalDatastoreType.OPERATIONAL, vpnOpIfIdentifier);
            break;
        }
        ListenableFuture<Void> futures = writeOperTxn.submit();
        String errorText = "onRemoveFloatingIp : Could not remove vpnInterface " + floatingIpInterface + " vpnName " + vpnName + " from Operational odl-l3vpn:vpn-interface-op-data";
        ListenableFutures.addErrorLogging(futures, LOG, errorText);
        LOG.debug("onRemoveFloatingIp : Remove vpnInterface {} vpnName {} " + "to Operational odl-l3vpn:vpn-interface-op-data", floatingIpInterface, vpnName);
    } else {
        LOG.debug("onRemoveFloatingIp : No vpnInterface {} found " + "in Operational odl-l3vpn:vpn-interface-op-data", floatingIpInterface);
    }
}

Example 57 with VpnInterface

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.vpn.interfaces.VpnInterface in project netvirt by opendaylight.

the class EvpnDnatFlowProgrammer method onAddFloatingIp.

public void onAddFloatingIp(final BigInteger dpnId, final String routerName, final long routerId, final String vpnName, final String internalIp, final String externalIp, final Uuid networkId, final String interfaceName, final String floatingIpInterface, final String floatingIpPortMacAddress, final String rd, final String nextHopIp, final WriteTransaction writeFlowInvTx) {
    /*
     *  1) Install the flow INTERNAL_TUNNEL_TABLE (table=36)-> PDNAT_TABLE (table=25) (SNAT VM on DPN1 is
     *     responding back to FIP VM on DPN2) {SNAT to DNAT traffic on different Hypervisor}
     *
     *  2) Install the flow L3_FIB_TABLE (table=21)-> PDNAT_TABLE (table=25) (FIP VM1 to FIP VM2
     *    Traffic on Same Hypervisor) {DNAT to DNAT on Same Hypervisor}
     *
     *  3) Install the flow L3_GW_MAC_TABLE (table=19)-> PDNAT_TABLE (table=25)
     *    (DC-GW is responding back to FIP VM) {DNAT Reverse traffic})
     *
     */
    long vpnId = NatUtil.getVpnId(dataBroker, vpnName);
    if (vpnId == NatConstants.INVALID_ID) {
        LOG.error("onAddFloatingIp : Invalid Vpn Id is found for Vpn Name {}", vpnName);
        return;
    }
    long l3Vni = NatEvpnUtil.getL3Vni(dataBroker, rd);
    if (l3Vni == NatConstants.DEFAULT_L3VNI_VALUE) {
        LOG.debug("onAddFloatingIp : L3VNI value is not configured in Internet VPN {} and RD {} " + "Carve-out L3VNI value from OpenDaylight VXLAN VNI Pool and continue with installing " + "DNAT flows for FloatingIp {}", vpnName, rd, externalIp);
        l3Vni = NatOverVxlanUtil.getInternetVpnVni(idManager, vpnName, routerId).longValue();
    }
    FloatingIPListener.updateOperationalDS(dataBroker, routerName, interfaceName, NatConstants.DEFAULT_LABEL_VALUE, internalIp, externalIp);
    String fibExternalIp = NatUtil.validateAndAddNetworkMask(externalIp);
    // Inform to FIB and BGP
    NatEvpnUtil.addRoutesForVxLanProvType(dataBroker, bgpManager, fibManager, vpnName, rd, fibExternalIp, nextHopIp, l3Vni, floatingIpInterface, floatingIpPortMacAddress, writeFlowInvTx, RouteOrigin.STATIC, dpnId);
    /* Install the flow table L3_FIB_TABLE (table=21)-> PDNAT_TABLE (table=25)
         * (SNAT to DNAT reverse traffic: If the DPN has both SNAT and  DNAT configured )
         */
    List<ActionInfo> actionInfoFib = new ArrayList<>();
    actionInfoFib.add(new ActionSetFieldEthernetDestination(new MacAddress(floatingIpPortMacAddress)));
    List<Instruction> instructionsFib = new ArrayList<>();
    instructionsFib.add(new InstructionApplyActions(actionInfoFib).buildInstruction(0));
    instructionsFib.add(new InstructionGotoTable(NwConstants.PDNAT_TABLE).buildInstruction(1));
    CreateFibEntryInput input = new CreateFibEntryInputBuilder().setVpnName(vpnName).setSourceDpid(dpnId).setIpAddress(fibExternalIp).setServiceId(l3Vni).setIpAddressSource(CreateFibEntryInput.IpAddressSource.FloatingIP).setInstruction(instructionsFib).build();
    Future<RpcResult<Void>> future1 = fibService.createFibEntry(input);
    ListenableFuture<RpcResult<Void>> futureVxlan = JdkFutureAdapters.listenInPoolThread(future1);
    LOG.debug("onAddFloatingIp : Add Floating Ip {} , found associated to fixed port {}", externalIp, interfaceName);
    if (floatingIpPortMacAddress != null) {
        WriteTransaction writeTx = dataBroker.newWriteOnlyTransaction();
        vpnManager.addSubnetMacIntoVpnInstance(vpnName, null, floatingIpPortMacAddress, dpnId, writeTx);
        vpnManager.addArpResponderFlowsToExternalNetworkIps(routerName, Collections.singleton(externalIp), floatingIpPortMacAddress, dpnId, networkId, writeTx);
        writeTx.submit();
    }
    final long finalL3Vni = l3Vni;
    Futures.addCallback(futureVxlan, new FutureCallback<RpcResult<Void>>() {

        @Override
        public void onFailure(@Nonnull Throwable error) {
            LOG.error("onAddFloatingIp : Error {} in custom fib routes install process for Floating " + "IP Prefix {} on DPN {}", error, externalIp, dpnId);
        }

        @Override
        public void onSuccess(@Nonnull RpcResult<Void> result) {
            if (result.isSuccessful()) {
                LOG.info("onAddFloatingIp : Successfully installed custom FIB routes for Floating " + "IP Prefix {} on DPN {}", externalIp, dpnId);
                List<Instruction> instructions = new ArrayList<>();
                List<ActionInfo> actionsInfos = new ArrayList<>();
                List<Instruction> customInstructions = new ArrayList<>();
                customInstructions.add(new InstructionGotoTable(NwConstants.PDNAT_TABLE).buildInstruction(0));
                actionsInfos.add(new ActionNxResubmit(NwConstants.PDNAT_TABLE));
                instructions.add(new InstructionApplyActions(actionsInfos).buildInstruction(0));
                /* If more than one floatingIp is available in vpn-to-dpn-list for given dpn id, do not call for
                  * installing INTERNAL_TUNNEL_TABLE (table=36) -> PDNAT_TABLE (table=25) flow entry with same tunnel_id
                  * again and again.
                  */
                if (!NatUtil.isFloatingIpPresentForDpn(dataBroker, dpnId, rd, vpnName, externalIp, true)) {
                    makeTunnelTableEntry(dpnId, finalL3Vni, instructions, writeFlowInvTx);
                }
                /* Install the flow L3_GW_MAC_TABLE (table=19)-> PDNAT_TABLE (table=25)
                  * (DNAT reverse traffic: If the traffic is Initiated from DC-GW to FIP VM (DNAT forward traffic))
                  */
                NatEvpnUtil.makeL3GwMacTableEntry(dpnId, vpnId, floatingIpPortMacAddress, customInstructions, mdsalManager, writeFlowInvTx);
                NatUtil.waitForTransactionToComplete(writeFlowInvTx);
            } else {
                LOG.error("onAddFloatingIp : Error {} in rpc call to create custom Fib entries for Floating " + "IP Prefix {} on DPN {}", result.getErrors(), externalIp, dpnId);
            }
        }
    }, MoreExecutors.directExecutor());
    // Read the FIP vpn-interface details from Configuration l3vpn:vpn-interfaces model and write into Operational DS
    InstanceIdentifier<VpnInterface> vpnIfIdentifier = NatUtil.getVpnInterfaceIdentifier(floatingIpInterface);
    Optional<VpnInterface> optionalVpnInterface = SingleTransactionDataBroker.syncReadOptionalAndTreatReadFailedExceptionAsAbsentOptional(dataBroker, LogicalDatastoreType.CONFIGURATION, vpnIfIdentifier);
    if (optionalVpnInterface.isPresent()) {
        WriteTransaction writeOperTxn = dataBroker.newWriteOnlyTransaction();
        for (VpnInstanceNames vpnInstance : optionalVpnInterface.get().getVpnInstanceNames()) {
            if (!vpnName.equals(vpnInstance.getVpnName())) {
                continue;
            }
            VpnInterfaceBuilder vpnIfBuilder = new VpnInterfaceBuilder(optionalVpnInterface.get());
            Adjacencies adjs = vpnIfBuilder.getAugmentation(Adjacencies.class);
            VpnInterfaceOpDataEntryBuilder vpnIfOpDataEntryBuilder = new VpnInterfaceOpDataEntryBuilder();
            vpnIfOpDataEntryBuilder.setKey(new VpnInterfaceOpDataEntryKey(interfaceName, vpnName));
            List<Adjacency> adjacencyList = adjs != null ? adjs.getAdjacency() : new ArrayList<>();
            List<Adjacency> adjacencyListToImport = new ArrayList<>();
            for (Adjacency adj : adjacencyList) {
                Subnetmap sn = VpnHelper.getSubnetmapFromItsUuid(dataBroker, adj.getSubnetId());
                if (!VpnHelper.isSubnetPartOfVpn(sn, vpnName)) {
                    continue;
                }
                adjacencyListToImport.add(adj);
            }
            AdjacenciesOp adjacenciesOp = new AdjacenciesOpBuilder().setAdjacency(adjacencyListToImport).build();
            vpnIfOpDataEntryBuilder.addAugmentation(AdjacenciesOp.class, adjacenciesOp);
            LOG.debug("onAddFloatingIp : Add vpnInterface {} to Operational l3vpn:vpn-interfaces-op-data ", floatingIpInterface);
            InstanceIdentifier<VpnInterfaceOpDataEntry> vpnIfIdentifierOpDataEntry = NatUtil.getVpnInterfaceOpDataEntryIdentifier(interfaceName, vpnName);
            writeOperTxn.put(LogicalDatastoreType.OPERATIONAL, vpnIfIdentifierOpDataEntry, vpnIfOpDataEntryBuilder.build(), WriteTransaction.CREATE_MISSING_PARENTS);
            break;
        }
        ListenableFuture<Void> futures = writeOperTxn.submit();
        String errorText = "onAddFloatingIp : Could not write Interface " + interfaceName + " vpnName " + vpnName;
        ListenableFutures.addErrorLogging(futures, LOG, errorText);
    } else {
        LOG.debug("onAddFloatingIp : No vpnInterface {} found in Configuration l3vpn:vpn-interfaces ", floatingIpInterface);
    }
}

Example 58 with VpnInterface

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.vpn.interfaces.VpnInterface in project netvirt by opendaylight.

the class NeutronvpnManager method withdrawPortIpFromVpnIface.

protected void withdrawPortIpFromVpnIface(Uuid vpnId, Uuid internetVpnId, Port port, Subnetmap sn, WriteTransaction wrtConfigTxn) {
    String infName = port.getUuid().getValue();
    InstanceIdentifier<VpnInterface> vpnIfIdentifier = NeutronvpnUtils.buildVpnInterfaceIdentifier(infName);
    Optional<VpnInterface> optionalVpnInterface = null;
    LOG.debug("withdrawPortIpFromVpnIface vpn {} internetVpn {} Port {}", vpnId, internetVpnId, infName);
    try {
        optionalVpnInterface = SingleTransactionDataBroker.syncReadOptional(dataBroker, LogicalDatastoreType.CONFIGURATION, vpnIfIdentifier);
    } catch (ReadFailedException e) {
        LOG.error("withdrawPortIpFromVpnIface: Error reading the VPN interface for {}", vpnIfIdentifier, e);
        return;
    }
    if (!optionalVpnInterface.isPresent()) {
        return;
    }
    LOG.trace("withdraw adjacencies for Port: {} subnet {}", port.getUuid().getValue(), sn != null ? sn.getSubnetIp() : "null");
    List<Adjacency> vpnAdjsList = optionalVpnInterface.get().getAugmentation(Adjacencies.class).getAdjacency();
    List<Adjacency> updatedAdjsList = new ArrayList<>();
    boolean isIpFromAnotherSubnet = false;
    for (Adjacency adj : vpnAdjsList) {
        String adjString = FibHelper.getIpFromPrefix(adj.getIpAddress());
        if (sn == null || !Objects.equals(adj.getSubnetId(), sn.getId())) {
            if (adj.getAdjacencyType() == AdjacencyType.PrimaryAdjacency) {
                isIpFromAnotherSubnet = true;
            }
            updatedAdjsList.add(adj);
            continue;
        }
        if (adj.getAdjacencyType() == AdjacencyType.PrimaryAdjacency) {
            LOG.error("withdrawPortIpFromVpnIface: suppressing primaryAdjacency {} FixedIp for vpnId {}", adjString, vpnId);
            if (vpnId != null) {
                neutronvpnUtils.removeVpnPortFixedIpToPort(vpnId.getValue(), String.valueOf(adjString), wrtConfigTxn);
            }
            if (internetVpnId != null) {
                neutronvpnUtils.removeVpnPortFixedIpToPort(internetVpnId.getValue(), String.valueOf(adjString), wrtConfigTxn);
            }
        } else {
            if (port.getDeviceOwner().equals(NeutronConstants.DEVICE_OWNER_ROUTER_INF) && sn.getRouterId() != null) {
                Router rtr = neutronvpnUtils.getNeutronRouter(sn.getRouterId());
                if (rtr != null && rtr.getRoutes() != null) {
                    List<Routes> extraRoutesToRemove = new ArrayList<>();
                    for (Routes rt : rtr.getRoutes()) {
                        if (rt.getNexthop().toString().equals(adjString)) {
                            extraRoutesToRemove.add(rt);
                        }
                    }
                    if (vpnId != null) {
                        LOG.error("withdrawPortIpFromVpnIface: suppressing extraRoute {} for vpnId {}", extraRoutesToRemove, vpnId);
                        removeAdjacencyforExtraRoute(vpnId, extraRoutesToRemove);
                    }
                /* removeAdjacencyforExtraRoute done also for internet-vpn-id, in previous call */
                }
            }
        }
    }
    Adjacencies adjacencies = new AdjacenciesBuilder().setAdjacency(updatedAdjsList).build();
    if (vpnId != null) {
        updateVpnInterfaceWithAdjacencies(vpnId, infName, adjacencies, wrtConfigTxn);
    }
    if (internetVpnId != null) {
        updateVpnInterfaceWithAdjacencies(internetVpnId, infName, adjacencies, wrtConfigTxn);
    }
    if (!isIpFromAnotherSubnet) {
        // no more subnetworks for neutron port
        if (sn != null && sn.getRouterId() != null) {
            removeFromNeutronRouterInterfacesMap(sn.getRouterId(), port.getUuid().getValue());
        }
        deleteVpnInterface(infName, null, /* vpn-id */
        wrtConfigTxn);
        return;
    }
    return;
}

Example 59 with VpnInterface

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.vpn.interfaces.VpnInterface in project netvirt by opendaylight.

the class NeutronvpnManager method writeVpnInterfaceToDs.

// TODO Clean up the exception handling
@SuppressWarnings("checkstyle:IllegalCatch")
private void writeVpnInterfaceToDs(@Nonnull Collection<Uuid> vpnIdList, String infName, Adjacencies adjacencies, Boolean isRouterInterface, WriteTransaction wrtConfigTxn) {
    if (vpnIdList.isEmpty() || infName == null) {
        LOG.error("vpn id or interface is null");
        return;
    }
    List<VpnInstanceNames> vpnIdListStruct = new ArrayList<>();
    for (Uuid vpnId : vpnIdList) {
        VpnInstanceNames vpnInstance = VpnHelper.getVpnInterfaceVpnInstanceNames(vpnId.getValue(), AssociatedSubnetType.V4AndV6Subnets);
        vpnIdListStruct.add(vpnInstance);
    }
    Boolean wrtConfigTxnPresent = true;
    if (wrtConfigTxn == null) {
        wrtConfigTxnPresent = false;
        wrtConfigTxn = dataBroker.newWriteOnlyTransaction();
    }
    InstanceIdentifier<VpnInterface> vpnIfIdentifier = NeutronvpnUtils.buildVpnInterfaceIdentifier(infName);
    VpnInterfaceBuilder vpnb = new VpnInterfaceBuilder().setKey(new VpnInterfaceKey(infName)).setName(infName).setVpnInstanceNames(vpnIdListStruct).setRouterInterface(isRouterInterface);
    if (adjacencies != null) {
        vpnb.addAugmentation(Adjacencies.class, adjacencies);
    }
    VpnInterface vpnIf = vpnb.build();
    try {
        LOG.info("Creating vpn interface {}", vpnIf);
        wrtConfigTxn.put(LogicalDatastoreType.CONFIGURATION, vpnIfIdentifier, vpnIf);
    } catch (Exception ex) {
        LOG.error("Creation of vpninterface {} failed", infName, ex);
    }
    if (!wrtConfigTxnPresent) {
        wrtConfigTxn.submit();
    }
}

Example 60 with VpnInterface

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.vpn.interfaces.VpnInterface in project netvirt by opendaylight.

the class NeutronvpnManager method updateVpnInterfaceWithAdjacencies.

private void updateVpnInterfaceWithAdjacencies(Uuid vpnId, String infName, Adjacencies adjacencies, WriteTransaction wrtConfigTxn) {
    if (vpnId == null || infName == null) {
        LOG.error("vpn id or interface is null");
        return;
    }
    if (wrtConfigTxn == null) {
        wrtConfigTxn = dataBroker.newWriteOnlyTransaction();
    }
    InstanceIdentifier<VpnInterface> vpnIfIdentifier = NeutronvpnUtils.buildVpnInterfaceIdentifier(infName);
    boolean isLockAcquired = false;
    try {
        isLockAcquired = interfaceLock.tryLock(infName, LOCK_WAIT_TIME, TimeUnit.SECONDS);
        Optional<VpnInterface> optionalVpnInterface = SingleTransactionDataBroker.syncReadOptional(dataBroker, LogicalDatastoreType.CONFIGURATION, vpnIfIdentifier);
        if (optionalVpnInterface.isPresent()) {
            VpnInterfaceBuilder vpnIfBuilder = new VpnInterfaceBuilder(optionalVpnInterface.get());
            LOG.debug("Updating vpn interface {} with new adjacencies", infName);
            if (adjacencies == null) {
                if (isLockAcquired) {
                    interfaceLock.unlock(infName);
                }
                return;
            }
            vpnIfBuilder.addAugmentation(Adjacencies.class, adjacencies);
            if (optionalVpnInterface.get().getVpnInstanceNames() != null) {
                List<VpnInstanceNames> listVpnInstances = new ArrayList<>(optionalVpnInterface.get().getVpnInstanceNames());
                if (listVpnInstances.isEmpty() || !VpnHelper.doesVpnInterfaceBelongToVpnInstance(vpnId.getValue(), listVpnInstances)) {
                    VpnInstanceNames vpnInstance = VpnHelper.getVpnInterfaceVpnInstanceNames(vpnId.getValue(), AssociatedSubnetType.V4AndV6Subnets);
                    listVpnInstances.add(vpnInstance);
                    vpnIfBuilder.setVpnInstanceNames(listVpnInstances);
                }
            } else {
                VpnInstanceNames vpnInstance = VpnHelper.getVpnInterfaceVpnInstanceNames(vpnId.getValue(), AssociatedSubnetType.V4AndV6Subnets);
                List<VpnInstanceNames> listVpnInstances = new ArrayList<>();
                listVpnInstances.add(vpnInstance);
                vpnIfBuilder.setVpnInstanceNames(listVpnInstances);
            }
            LOG.info("Updating vpn interface {} with new adjacencies", infName);
            wrtConfigTxn.put(LogicalDatastoreType.CONFIGURATION, vpnIfIdentifier, vpnIfBuilder.build());
        }
    } catch (IllegalStateException | ReadFailedException ex) {
        LOG.error("Update of vpninterface {} failed", infName, ex);
    } finally {
        if (isLockAcquired) {
            interfaceLock.unlock(infName);
        }
    }
}