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

Example 71 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 SubnetRouteInterfaceStateChangeListener method update.

@Override
public void update(InstanceIdentifier<Interface> identifier, Interface original, Interface update) {
    String interfaceName = update.getName();
    if (L2vlan.class.equals(update.getType())) {
        LOG.trace("{} update: Operation Interface update event - Old: {}, New: {}", LOGGING_PREFIX, original, update);
        List<Uuid> subnetIdList = getSubnetId(update);
        if (subnetIdList.isEmpty()) {
            LOG.error("SubnetRouteInterfaceListener update: Port {} doesn't exist in configDS", update.getName());
            return;
        }
        for (Uuid subnetId : subnetIdList) {
            jobCoordinator.enqueueJob("SUBNETROUTE-" + subnetId, () -> {
                Uint64 dpnId = Uint64.ZERO;
                try {
                    dpnId = InterfaceUtils.getDpIdFromInterface(update);
                } catch (NullPointerException e) {
                    LOG.error("{} remove: Unable to retrieve dpnId for interface {} in subnet  {}. " + "Fetching from vpn interface itself", LOGGING_PREFIX, update.getName(), subnetId, e);
                }
                List<ListenableFuture<Void>> futures = new ArrayList<>();
                try {
                    InstanceIdentifier<VpnInterface> id = VpnUtil.getVpnInterfaceIdentifier(interfaceName);
                    Optional<VpnInterface> cfgVpnInterface = SingleTransactionDataBroker.syncReadOptional(dataBroker, LogicalDatastoreType.CONFIGURATION, id);
                    if (!cfgVpnInterface.isPresent()) {
                        return futures;
                    }
                    boolean interfaceChangeEligible = false;
                    for (VpnInstanceNames vpnInterfaceVpnInstance : cfgVpnInterface.get().nonnullVpnInstanceNames().values()) {
                        String vpnName = vpnInterfaceVpnInstance.getVpnName();
                        InstanceIdentifier<VpnInterfaceOpDataEntry> idOper = VpnUtil.getVpnInterfaceOpDataEntryIdentifier(interfaceName, vpnName);
                        Optional<VpnInterfaceOpDataEntry> optVpnInterface = SingleTransactionDataBroker.syncReadOptional(dataBroker, LogicalDatastoreType.OPERATIONAL, idOper);
                        if (optVpnInterface.isPresent()) {
                            Uint64 dpnIdLocal = dpnId;
                            if (Uint64.ZERO.equals(dpnIdLocal)) {
                                dpnIdLocal = optVpnInterface.get().getDpnId();
                            }
                            if (!Uint64.ZERO.equals(dpnIdLocal)) {
                                interfaceChangeEligible = true;
                                break;
                            }
                        }
                    }
                    if (interfaceChangeEligible) {
                        if (Interface.OperStatus.Up.equals(update.getOperStatus())) {
                            LOG.info("{} update: Received port UP event for interface {} in subnet {}", LOGGING_PREFIX, update.getName(), subnetId);
                            vpnSubnetRouteHandler.onInterfaceUp(dpnId, update.getName(), subnetId);
                        } else if (Interface.OperStatus.Down.equals(update.getOperStatus()) || Interface.OperStatus.Unknown.equals(update.getOperStatus())) {
                            /*
                                 * If the interface went down voluntarily (or) if the interface is not
                                 * reachable from control-path involuntarily, trigger subnetRoute election
                                 */
                            LOG.info("{} update: Received port {} event for interface {} in subnet {} ", LOGGING_PREFIX, Interface.OperStatus.Unknown.equals(update.getOperStatus()) ? "UNKNOWN" : "DOWN", update.getName(), subnetId);
                            vpnSubnetRouteHandler.onInterfaceDown(dpnId, update.getName(), subnetId);
                        }
                    }
                } catch (InterruptedException | ExecutionException e) {
                    LOG.error("update: Failed to read data store for interface {} dpn {}", interfaceName, dpnId);
                }
                return futures;
            });
        }
    }
    LOG.info("{} update: Processed Interface {} update event", LOGGING_PREFIX, update.getName());
}

Example 72 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 TunnelInterfaceStateListener method handleTunnelEventForDPN.

// TODO Clean up the exception handling
@SuppressWarnings("checkstyle:IllegalCatch")
private void handleTunnelEventForDPN(StateTunnelList stateTunnelList, TunnelAction tunnelAction) {
    final Uint64 srcDpnId = stateTunnelList.getSrcInfo() != null ? Uint64.valueOf(stateTunnelList.getSrcInfo().getTepDeviceId()).intern() : Uint64.ZERO;
    final String srcTepIp = stateTunnelList.getSrcInfo() != null ? stateTunnelList.getSrcInfo().getTepIp().stringValue() : "0";
    String destTepIp = stateTunnelList.getDstInfo() != null ? stateTunnelList.getDstInfo().getTepIp().stringValue() : "0";
    String rd;
    Uint64 remoteDpnId = null;
    boolean isTepDeletedOnDpn = false;
    LOG.info("handleTunnelEventForDPN: Handle tunnel event for srcDpn {} SrcTepIp {} DestTepIp {} ", srcDpnId, srcTepIp, destTepIp);
    int tunTypeVal = getTunnelType(stateTunnelList);
    LOG.trace("handleTunnelEventForDPN: tunTypeVal is {}", tunTypeVal);
    try {
        if (tunnelAction == TunnelAction.TUNNEL_EP_ADD) {
            LOG.info("handleTunnelEventForDPN: Tunnel ADD event received for Dpn {} VTEP Ip {} destTepIp {}", srcDpnId, srcTepIp, destTepIp);
            if (isTunnelInLogicalGroup(stateTunnelList)) {
                return;
            }
        } else if (tunnelAction == TunnelAction.TUNNEL_EP_DELETE) {
            LOG.info("handleTunnelEventForDPN: Tunnel DELETE event received for Dpn {} VTEP Ip {} DestTepIp {}", srcDpnId, srcTepIp, destTepIp);
            // When tunnel EP is deleted on a DPN , VPN gets two deletion event.
            // One for a DPN on which tunnel EP was deleted and another for other-end DPN.
            // Update the adj for the vpninterfaces for a DPN on which TEP is deleted.
            // Update the adj & VRF for the vpninterfaces for a DPN on which TEP is deleted.
            // Dont update the adj & VRF for vpninterfaces for a DPN on which TEP is not deleted.
            String endpointIpForDPN;
            try {
                endpointIpForDPN = InterfaceUtils.getEndpointIpAddressForDPN(dataBroker, srcDpnId);
            } catch (Exception e) {
                LOG.error("handleTunnelEventForDPN: Unable to resolve endpoint IP for srcDpn {}", srcDpnId);
                /* this dpn does not have the VTEP */
                endpointIpForDPN = null;
            }
            if (endpointIpForDPN == null) {
                LOG.info("handleTunnelEventForDPN: Tunnel TEP is deleted on Dpn {} VTEP Ip {} destTepIp {}", srcDpnId, srcTepIp, destTepIp);
                isTepDeletedOnDpn = true;
            }
        }
        // Get the list of VpnInterfaces from Intf Mgr for a SrcDPN on which TEP is added/deleted
        Future<RpcResult<GetDpnInterfaceListOutput>> result;
        List<Interfaces> srcDpninterfacelist = new ArrayList<>();
        List<Interfaces> destDpninterfacelist = new ArrayList<>();
        try {
            result = intfRpcService.getDpnInterfaceList(new GetDpnInterfaceListInputBuilder().setDpid(srcDpnId).build());
            RpcResult<GetDpnInterfaceListOutput> rpcResult = result.get();
            if (!rpcResult.isSuccessful()) {
                LOG.error("handleTunnelEventForDPN: RPC Call to GetDpnInterfaceList for srcDpnid {} srcTepIp {}" + " destTepIP {} returned with Errors {}", srcDpnId, srcTepIp, destTepIp, rpcResult.getErrors());
            } else {
                srcDpninterfacelist = rpcResult.getResult().nonnullInterfaces();
            }
        } catch (Exception e) {
            LOG.error("handleTunnelEventForDPN: Exception when querying for GetDpnInterfaceList for srcDpnid {}" + " srcTepIp {} destTepIp {}", srcDpnId, srcTepIp, destTepIp, e);
        }
        // Get the list of VpnInterfaces from Intf Mgr for a destDPN only for internal tunnel.
        if (tunTypeVal == VpnConstants.ITMTunnelLocType.Internal.getValue()) {
            remoteDpnId = Uint64.valueOf(stateTunnelList.getDstInfo() != null ? stateTunnelList.getDstInfo().getTepDeviceId() : "0").intern();
            try {
                result = intfRpcService.getDpnInterfaceList(new GetDpnInterfaceListInputBuilder().setDpid(remoteDpnId).build());
                RpcResult<GetDpnInterfaceListOutput> rpcResult = result.get();
                if (!rpcResult.isSuccessful()) {
                    LOG.error("handleTunnelEventForDPN: RPC Call to GetDpnInterfaceList for remoteDpnid {}" + " srcTepIP {} destTepIp {} returned with Errors {}", remoteDpnId, srcTepIp, destTepIp, rpcResult.getErrors());
                } else {
                    destDpninterfacelist = rpcResult.getResult().nonnullInterfaces();
                }
            } catch (Exception e) {
                LOG.error("handleTunnelEventForDPN: Exception when querying for GetDpnInterfaceList" + " for remoteDpnid {} srcTepIp {} destTepIp {}", remoteDpnId, srcTepIp, destTepIp, e);
            }
        }
        /*
             * Iterate over the list of VpnInterface for a SrcDpn on which TEP is added or deleted and read the adj.
             * Update the adjacencies with the updated nexthop.
             */
        List<Uuid> subnetList = new ArrayList<>();
        Map<Uint32, String> vpnIdRdMap = new HashMap<>();
        Set<String> listVpnName = new HashSet<>();
        for (Interfaces interfaces : srcDpninterfacelist) {
            if (!L2vlan.class.equals(interfaces.getInterfaceType())) {
                LOG.info("handleTunnelEventForDPN: Interface {} not of type L2Vlan", interfaces.getInterfaceName());
                continue;
            }
            String intfName = interfaces.getInterfaceName();
            VpnInterface vpnInterface = vpnUtil.getConfiguredVpnInterface(intfName);
            if (vpnInterface != null) {
                listVpnName.addAll(VpnHelper.getVpnInterfaceVpnInstanceNamesString(new ArrayList<VpnInstanceNames>(vpnInterface.nonnullVpnInstanceNames().values())));
                handleTunnelEventForDPNVpn(stateTunnelList, vpnIdRdMap, tunnelAction, isTepDeletedOnDpn, subnetList, TunnelEventProcessingMethod.POPULATESUBNETS, vpnInterface);
            }
        }
        /*
             * Iterate over the list of VpnInterface for destDPN and get the prefix .
             * Create remote rule for each of those prefix on srcDPN.
             */
        for (Interfaces interfaces : destDpninterfacelist) {
            if (!L2vlan.class.equals(interfaces.getInterfaceType())) {
                LOG.info("handleTunnelEventForDPN: Interface {} not of type L2Vlan", interfaces.getInterfaceName());
                continue;
            }
            String intfName = interfaces.getInterfaceName();
            VpnInterface vpnInterface = vpnUtil.getConfiguredVpnInterface(intfName);
            if (vpnInterface != null) {
                handleTunnelEventForDPNVpn(stateTunnelList, vpnIdRdMap, tunnelAction, isTepDeletedOnDpn, subnetList, TunnelEventProcessingMethod.MANAGEREMOTEROUTES, vpnInterface);
            }
        }
        // Iterate over the VpnId-to-Rd map.
        for (Map.Entry<Uint32, String> entry : vpnIdRdMap.entrySet()) {
            Uint32 vpnId = entry.getKey();
            rd = entry.getValue();
            if (tunnelAction == TunnelAction.TUNNEL_EP_ADD && tunTypeVal == VpnConstants.ITMTunnelLocType.External.getValue()) {
                fibManager.populateExternalRoutesOnDpn(srcDpnId, vpnId, rd, srcTepIp, destTepIp);
            } else if (tunnelAction == TunnelAction.TUNNEL_EP_DELETE && tunTypeVal == VpnConstants.ITMTunnelLocType.External.getValue()) {
                fibManager.cleanUpExternalRoutesOnDpn(srcDpnId, vpnId, rd, srcTepIp, destTepIp);
            }
        }
        if (listVpnName.size() >= 1) {
            if (tunnelAction == TunnelAction.TUNNEL_EP_ADD) {
                for (Uuid subnetId : subnetList) {
                    // Populate the List of subnets
                    vpnSubnetRouteHandler.updateSubnetRouteOnTunnelUpEvent(subnetId, srcDpnId);
                }
            }
            if (tunnelAction == TunnelAction.TUNNEL_EP_DELETE && isTepDeletedOnDpn) {
                for (Uuid subnetId : subnetList) {
                    // Populate the List of subnets
                    vpnSubnetRouteHandler.updateSubnetRouteOnTunnelDownEvent(subnetId, srcDpnId);
                }
            }
        }
        /*
             * Program the BGP routes of all the VPNs which have footprint on the source DPN.
             *
             * DC-GW LB groups are programmed in DJC Jobs, so DJC with same key is used here to make sure
             * groups are programmed first, then only BGP routes are programmed.
             */
        jobCoordinator.enqueueJob(FibHelper.getJobKeyForDcGwLoadBalancingGroup(srcDpnId), () -> {
            listVpnName.forEach(vpnName -> {
                Uint32 vpnId = vpnUtil.getVpnId(vpnName);
                final String vrfId = vpnIdRdMap.get(vpnId);
                if ((tunnelAction == TunnelAction.TUNNEL_EP_ADD) && (tunTypeVal == VpnConstants.ITMTunnelLocType.External.getValue())) {
                    fibManager.populateExternalRoutesOnDpn(srcDpnId, vpnId, vrfId, srcTepIp, destTepIp);
                }
            });
            return Collections.emptyList();
        }, RETRY_COUNT);
    } catch (RuntimeException e) {
        LOG.error("handleTunnelEventForDpn: Unable to handle the tunnel event for srcDpnId {} srcTepIp {}" + " remoteDpnId {} destTepIp {}", srcDpnId, srcTepIp, remoteDpnId, destTepIp, e);
    }
}

Example 73 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 TunnelInterfaceStateListener method handleTunnelEventForDPNVpn.

// TODO Clean up the exception handling
@SuppressWarnings("checkstyle:IllegalCatch")
private void handleTunnelEventForDPNVpn(StateTunnelList stateTunnelList, Map<Uint32, String> vpnIdRdMap, TunnelAction tunnelAction, boolean isTepDeletedOnDpn, List<Uuid> subnetList, TunnelEventProcessingMethod method, VpnInterface cfgVpnInterface) {
    String rd;
    String intfName = cfgVpnInterface.getName();
    final Uint64 srcDpnId = Uint64.valueOf(stateTunnelList.getSrcInfo() != null ? stateTunnelList.getSrcInfo().getTepDeviceId() : "0").intern();
    String destTepIp = stateTunnelList.getDstInfo() != null ? stateTunnelList.getDstInfo().getTepIp().stringValue() : null;
    String srcTepIp = stateTunnelList.getSrcInfo() != null ? stateTunnelList.getSrcInfo().getTepIp().stringValue() : null;
    int tunTypeVal = getTunnelType(stateTunnelList);
    Uint64 remoteDpnId = null;
    if (tunTypeVal == VpnConstants.ITMTunnelLocType.Internal.getValue()) {
        remoteDpnId = Uint64.valueOf(stateTunnelList.getDstInfo() != null ? stateTunnelList.getDstInfo().getTepDeviceId() : "0").intern();
    }
    if (cfgVpnInterface.getVpnInstanceNames() == null) {
        LOG.warn("handleTunnelEventForDpn: no vpnName found for interface {}", intfName);
        return;
    }
    try {
        for (VpnInstanceNames vpnInstance : cfgVpnInterface.getVpnInstanceNames().values()) {
            String vpnName = vpnInstance.getVpnName();
            if (method == TunnelEventProcessingMethod.POPULATESUBNETS) {
                Optional<VpnInterfaceOpDataEntry> opVpnInterface = vpnUtil.getVpnInterfaceOpDataEntry(intfName, vpnName);
                if (opVpnInterface.isPresent()) {
                    VpnInterfaceOpDataEntry vpnInterface = opVpnInterface.get();
                    jobCoordinator.enqueueJob("VPNINTERFACE-" + intfName, new UpdateVpnInterfaceOnTunnelEvent(tunnelAction, vpnInterface, stateTunnelList, isTepDeletedOnDpn));
                    // Populate the List of subnets
                    InstanceIdentifier<PortOpDataEntry> portOpIdentifier = InstanceIdentifier.builder(PortOpData.class).child(PortOpDataEntry.class, new PortOpDataEntryKey(intfName)).build();
                    Optional<PortOpDataEntry> optionalPortOp = SingleTransactionDataBroker.syncReadOptional(dataBroker, LogicalDatastoreType.OPERATIONAL, portOpIdentifier);
                    if (optionalPortOp.isPresent()) {
                        List<Uuid> subnetIdList = optionalPortOp.get().getSubnetIds();
                        if (subnetIdList != null) {
                            for (Uuid subnetId : subnetIdList) {
                                if (!subnetList.contains(subnetId)) {
                                    subnetList.add(subnetId);
                                }
                            }
                        }
                    }
                    // Populate the map for VpnId-to-Rd
                    Uint32 vpnId = vpnUtil.getVpnId(vpnName);
                    rd = vpnUtil.getVpnRd(vpnName);
                    vpnIdRdMap.put(vpnId, rd);
                }
            } else if (method == TunnelEventProcessingMethod.MANAGEREMOTEROUTES) {
                Optional<VpnInterfaceOpDataEntry> opVpnInterface = vpnUtil.getVpnInterfaceOpDataEntry(intfName, vpnName);
                if (opVpnInterface.isPresent()) {
                    VpnInterfaceOpDataEntry vpnInterface = opVpnInterface.get();
                    AdjacenciesOp adjacencies = vpnInterface.augmentation(AdjacenciesOp.class);
                    Map<AdjacencyKey, Adjacency> adjacencyKeyAdjacencyMap = adjacencies != null && adjacencies.getAdjacency() != null ? adjacencies.getAdjacency() : Collections.<AdjacencyKey, Adjacency>emptyMap();
                    String prefix = null;
                    Uint32 vpnId = vpnUtil.getVpnId(vpnInterface.getVpnInstanceName());
                    if (vpnIdRdMap.containsKey(vpnId)) {
                        rd = vpnIdRdMap.get(vpnId);
                        LOG.info("handleTunnelEventForDPN: Remote DpnId {} VpnId {} rd {} VpnInterface {}" + " srcTepIp {} destTepIp {}", remoteDpnId, vpnId, rd, vpnInterface, srcTepIp, destTepIp);
                        for (Adjacency adj : adjacencyKeyAdjacencyMap.values()) {
                            prefix = adj.getIpAddress();
                            Uint32 label = adj.getLabel();
                            if (tunnelAction == TunnelAction.TUNNEL_EP_ADD && tunTypeVal == VpnConstants.ITMTunnelLocType.Internal.getValue()) {
                                fibManager.manageRemoteRouteOnDPN(true, srcDpnId, vpnId, rd, prefix, destTepIp, label);
                            }
                            if (tunnelAction == TunnelAction.TUNNEL_EP_DELETE && tunTypeVal == VpnConstants.ITMTunnelLocType.Internal.getValue()) {
                                fibManager.manageRemoteRouteOnDPN(false, srcDpnId, vpnId, rd, prefix, destTepIp, label);
                            }
                        }
                    }
                }
            }
        }
    } catch (InterruptedException | ExecutionException e) {
        LOG.error("handleTunnelEventForDPN: Failed to read data store for interface {} srcDpn {} srcTep {} " + "dstTep {}", intfName, srcDpnId, srcTepIp, destTepIp);
    }
}

Example 74 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 VpnInterfaceManager method removeVpnInterfaceCall.

private void removeVpnInterfaceCall(final InstanceIdentifier<VpnInterface> identifier, final VpnInterface vpnInterface, final String vpnName, final String interfaceName) {
    if (Boolean.TRUE.equals(vpnInterface.isRouterInterface())) {
        jobCoordinator.enqueueJob("VPNINTERFACE-" + vpnInterface.getName(), () -> {
            ListenableFuture<?> future = txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION, confTx -> {
                deleteFibEntryForRouterInterface(vpnInterface, confTx, vpnName);
                LOG.info("remove: Router interface {} for vpn {}", interfaceName, vpnName);
            });
            LoggingFutures.addErrorLogging(future, LOG, "Error removing call for interface {} on VPN {}", vpnInterface.getName(), vpnName);
            return Collections.singletonList(future);
        }, DJC_MAX_RETRIES);
    } else {
        Interface interfaceState = InterfaceUtils.getInterfaceStateFromOperDS(dataBroker, interfaceName);
        removeVpnInterfaceFromVpn(identifier, vpnInterface, vpnName, interfaceName, interfaceState);
    }
}

Example 75 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 VPNServiceChainHandler method programScfToVpnPipeline.

/**
 * L3VPN Service chaining: It moves traffic from a ServiceChain to a L3VPN.
 *
 * @param vpnName Vpn Instance Name. Typicall the UUID
 * @param scfTag ServiceChainForwarding Tag
 * @param servChainTag ServiceChain Tag
 * @param dpnId DpnId in which the egress pseudo logical port belongs
 * @param vpnPseudoLportTag VpnPseudo Logical port tag
 * @param isLastServiceChain Flag stating if there is no other ServiceChain
 *        using this VpnPseudoPort
 * @param addOrRemove States if pipeline must be installed or removed
 */
public void programScfToVpnPipeline(String vpnName, long scfTag, int servChainTag, long dpnId, int vpnPseudoLportTag, boolean isLastServiceChain, int addOrRemove) {
    // These Flows must be installed in the DPN where the last SF in the ServiceChain is located
    // + ScForwardingTable (75):  (This one is created and maintained by ScHopManager)
    // - Match:  scfTag + servChainId + lportTagOfvVSF    Instr: VpnPseudoPortTag + SI=L3VPN + GOTO LPortDisp
    // And these 2 flows must be installed in all Dpns where the Vpn is present:
    // + LPortDisp (17):
    // - Match:  VpnPseudoPortTag + SI==L3VPN    Instr: setVpnTag + GOTO FIB
    // + FIB (21): (one entry per VrfEntry, and it is maintained by FibManager)
    // - Match:  vrfTag==vpnTag + eth_type=IPv4  + dst_ip   Instr:  Output DC-GW
    // 
    LOG.info("L3VPN: Service Chaining programScfToVpnPipeline [Started]: Parameters Vpn Name: {} ", vpnName);
    String rd = VpnServiceChainUtils.getVpnRd(dataBroker, vpnName);
    if (rd == null || rd.isEmpty()) {
        LOG.warn("programScfToVpnPipeline: Could not find Router-distinguisher for VPN {}. No further actions", vpnName);
        return;
    }
    VpnInstanceOpDataEntry vpnInstance = getVpnInstance(rd);
    LOG.debug("programScfToVpnPipeline: rd={}, lportTag={} ", rd, vpnPseudoLportTag);
    // Find out the set of DPNs for the given VPN ID
    if (vpnInstance != null) {
        if (addOrRemove == NwConstants.ADD_FLOW || addOrRemove == NwConstants.DEL_FLOW && isLastServiceChain) {
            Long vpnId = vpnInstance.getVpnId();
            List<VpnToDpnList> vpnToDpnList = vpnInstance.getVpnToDpnList();
            if (vpnToDpnList != null) {
                List<BigInteger> dpns = new ArrayList<>();
                for (VpnToDpnList dpnInVpn : vpnToDpnList) {
                    dpns.add(dpnInVpn.getDpnId());
                }
                if (!dpns.contains(BigInteger.valueOf(dpnId))) {
                    LOG.debug("Dpn {} is not included in the current VPN Footprint", dpnId);
                    dpns.add(BigInteger.valueOf(dpnId));
                }
                for (BigInteger dpn : dpns) {
                    VpnServiceChainUtils.programLPortDispatcherFlowForScfToVpn(mdsalManager, vpnId, dpn, vpnPseudoLportTag, addOrRemove);
                }
            } else {
                LOG.debug("Could not find VpnToDpn list for VPN {} with rd {}", vpnName, rd);
            }
        }
        // We need to keep a fake VpnInterface in the DPN where the last vSF (before the VpnPseudoPort) is
        // located, because in case the last real VpnInterface is removed from that DPN, we still need
        // the Fib table programmed there
        String intfName = VpnServiceChainUtils.buildVpnPseudoPortIfName(dpnId, scfTag, servChainTag, vpnPseudoLportTag);
        vpnFootprintService.updateVpnToDpnMapping(BigInteger.valueOf(dpnId), vpnName, rd, intfName, null, /*ipAddressSourceValuePair*/
        addOrRemove == NwConstants.ADD_FLOW);
    }
    LOG.info("L3VPN: Service Chaining programScfToVpnPipeline [End]");
}