Examples with Bgp org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.Bgp used on opensource projects

Example 76 with Bgp

use of org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.Bgp in project netvirt by opendaylight.

the class VpnSubnetRouteHandler method electNewDpnForSubnetRoute.

// TODO Clean up the exception handling
@SuppressWarnings("checkstyle:IllegalCatch")
private void electNewDpnForSubnetRoute(SubnetOpDataEntryBuilder subOpBuilder, BigInteger oldDpnId, Uuid subnetId, Uuid networkId, boolean isBgpVpn) {
    List<SubnetToDpn> subDpnList = null;
    boolean isRouteAdvertised = false;
    subDpnList = subOpBuilder.getSubnetToDpn();
    String rd = subOpBuilder.getVrfId();
    String subnetIp = subOpBuilder.getSubnetCidr();
    String vpnName = subOpBuilder.getVpnName();
    long elanTag = subOpBuilder.getElanTag();
    boolean isAlternateDpnSelected = false;
    long l3vni = 0;
    long label = 0;
    String networkName = networkId != null ? networkId.getValue() : null;
    LOG.info("{} electNewDpnForSubnetRoute: Handling subnet {} subnetIp {} vpn {} rd {} TaskState {}" + " lastTaskState {}", LOGGING_PREFIX, subnetId.getValue(), subnetIp, subOpBuilder.getVpnName(), subOpBuilder.getVrfId(), subOpBuilder.getRouteAdvState(), subOpBuilder.getLastAdvState());
    if (!isBgpVpn) {
        // blended more better into this design.
        if (VpnUtil.isL3VpnOverVxLan(subOpBuilder.getL3vni())) {
            l3vni = subOpBuilder.getL3vni();
        } else {
            label = getLabel(rd, subnetIp);
            subOpBuilder.setLabel(label);
        }
        isRouteAdvertised = addSubnetRouteToFib(rd, subnetIp, null, /* nhDpnId */
        null, /* nhTepIp */
        vpnName, elanTag, label, l3vni, subnetId, isBgpVpn, networkName);
        if (isRouteAdvertised) {
            subOpBuilder.setRouteAdvState(TaskState.Advertised);
        } else {
            LOG.error("{} electNewDpnForSubnetRoute: Unable to find TepIp for subnet {} subnetip {} vpnName {}" + " rd {}, attempt next dpn", LOGGING_PREFIX, subnetId.getValue(), subnetIp, vpnName, rd);
            subOpBuilder.setRouteAdvState(TaskState.PendingAdvertise);
        }
        return;
    }
    String nhTepIp = null;
    BigInteger nhDpnId = null;
    Iterator<SubnetToDpn> subnetDpnIter = subDpnList.iterator();
    while (subnetDpnIter.hasNext()) {
        SubnetToDpn subnetToDpn = subnetDpnIter.next();
        if (subnetToDpn.getDpnId().equals(oldDpnId)) {
            // Is this same is as input dpnId, then ignore it
            continue;
        }
        nhDpnId = subnetToDpn.getDpnId();
        if (vpnNodeListener.isConnectedNode(nhDpnId)) {
            // but does it have a TEP configured at all?
            try {
                nhTepIp = InterfaceUtils.getEndpointIpAddressForDPN(dataBroker, nhDpnId);
                if (nhTepIp != null) {
                    isAlternateDpnSelected = true;
                    break;
                }
            } catch (Exception e) {
                LOG.warn("{} electNewDpnForSubnetRoute: Unable to find TepIp for rd {} subnetroute subnetip {}" + " for dpnid {}, attempt next", LOGGING_PREFIX, rd, subnetIp, nhDpnId.toString(), e);
                continue;
            }
        }
    }
    if (!isAlternateDpnSelected) {
        // If no alternate Dpn is selected as nextHopDpn, withdraw the subnetroute if it had a nextHop already.
        if (isRouteAdvertised(subOpBuilder) && oldDpnId != null) {
            LOG.info("{} electNewDpnForSubnetRoute: No alternate DPN available for subnet {} subnetIp {} vpn {}" + " rd {} Prefix withdrawn from BGP", LOGGING_PREFIX, subnetId.getValue(), subnetIp, vpnName, rd);
            // Withdraw route from BGP for this subnet
            boolean routeWithdrawn = deleteSubnetRouteFromFib(rd, subnetIp, vpnName, isBgpVpn);
            subOpBuilder.setNhDpnId(null);
            subOpBuilder.setLastAdvState(subOpBuilder.getRouteAdvState());
            if (routeWithdrawn) {
                subOpBuilder.setRouteAdvState(TaskState.Withdrawn);
            } else {
                LOG.error("{} electNewDpnForSubnetRoute: Withdrawing NextHopDPN {} for subnet {} subnetIp {}" + " vpn {} rd {} from BGP failed", LOGGING_PREFIX, oldDpnId, subnetId.getValue(), subnetIp, vpnName, rd);
                subOpBuilder.setRouteAdvState(TaskState.PendingWithdraw);
            }
        }
    } else {
        // If alternate Dpn is selected as nextHopDpn, use that for subnetroute.
        subOpBuilder.setNhDpnId(nhDpnId);
        if (VpnUtil.isL3VpnOverVxLan(subOpBuilder.getL3vni())) {
            l3vni = subOpBuilder.getL3vni();
        } else {
            label = getLabel(rd, subnetIp);
            subOpBuilder.setLabel(label);
        }
        // update the VRF entry for the subnetroute.
        isRouteAdvertised = addSubnetRouteToFib(rd, subnetIp, nhDpnId, nhTepIp, vpnName, elanTag, label, l3vni, subnetId, isBgpVpn, networkName);
        subOpBuilder.setLastAdvState(subOpBuilder.getRouteAdvState());
        if (isRouteAdvertised) {
            subOpBuilder.setRouteAdvState(TaskState.Advertised);
        } else {
            LOG.error("{} electNewDpnForSubnetRoute: Swapping to add new NextHopDpn {} for subnet {} subnetIp {}" + " vpn {} rd {} failed", LOGGING_PREFIX, nhDpnId, subnetId.getValue(), subnetIp, vpnName, rd);
            subOpBuilder.setRouteAdvState(TaskState.PendingAdvertise);
        }
    }
}

Example 77 with Bgp

use of org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.Bgp in project netvirt by opendaylight.

the class VpnSubnetRouteHandler method onInterfaceUp.

// TODO Clean up the exception handling
@SuppressWarnings("checkstyle:IllegalCatch")
public void onInterfaceUp(BigInteger dpnId, String intfName, Uuid subnetId) {
    // TODO(vivek): Change this to use more granularized lock at subnetId level
    SubnetToDpn subDpn = null;
    if (dpnId == null || Objects.equals(dpnId, BigInteger.ZERO)) {
        LOG.error("{} onInterfaceUp: Unable to determine the DPNID for port {} on subnet {}", LOGGING_PREFIX, intfName, subnetId.getValue());
        return;
    }
    try {
        VpnUtil.lockSubnet(lockManager, subnetId.getValue());
        try {
            InstanceIdentifier<SubnetOpDataEntry> subOpIdentifier = InstanceIdentifier.builder(SubnetOpData.class).child(SubnetOpDataEntry.class, new SubnetOpDataEntryKey(subnetId)).build();
            Optional<SubnetOpDataEntry> optionalSubs = VpnUtil.read(dataBroker, LogicalDatastoreType.OPERATIONAL, subOpIdentifier);
            if (!optionalSubs.isPresent()) {
                LOG.trace("{} onInterfaceUp: SubnetOpDataEntry for subnet {} is not available." + " Ignoring interfaceUp for port{}", LOGGING_PREFIX, subnetId.getValue(), intfName);
                return;
            }
            subOpDpnManager.addPortOpDataEntry(intfName, subnetId, dpnId);
            subDpn = subOpDpnManager.addInterfaceToDpn(subnetId, dpnId, intfName);
            if (subDpn == null) {
                return;
            }
            SubnetOpDataEntry subnetOpDataEntry = optionalSubs.get();
            SubnetOpDataEntryBuilder subOpBuilder = new SubnetOpDataEntryBuilder(subnetOpDataEntry);
            LOG.info("{} onInterfaceUp: Updating the SubnetOpDataEntry node for subnet {} subnetIp {} vpn {}" + " rd {} TaskState {} lastTaskState {}", LOGGING_PREFIX, subnetId.getValue(), subOpBuilder.getSubnetCidr(), subOpBuilder.getVpnName(), subOpBuilder.getVrfId(), subOpBuilder.getRouteAdvState(), subOpBuilder.getLastAdvState());
            boolean isExternalSubnetVpn = VpnUtil.isExternalSubnetVpn(subnetOpDataEntry.getVpnName(), subnetId.getValue());
            List<SubnetToDpn> subDpnList = subOpBuilder.getSubnetToDpn();
            subDpnList.add(subDpn);
            subOpBuilder.setSubnetToDpn(subDpnList);
            if (subOpBuilder.getRouteAdvState() != TaskState.Advertised) {
                if (subOpBuilder.getNhDpnId() == null) {
                    // No nexthop selected yet, elect one now
                    electNewDpnForSubnetRoute(subOpBuilder, null, /* oldDpnId */
                    subnetId, null, /*networkId*/
                    !isExternalSubnetVpn);
                } else if (!isExternalSubnetVpn) {
                    // Already nexthop has been selected, only publishing to bgp required, so publish to bgp
                    getNexthopTepAndPublishRoute(subOpBuilder, subnetId);
                }
            }
            SubnetOpDataEntry subOpEntry = subOpBuilder.build();
            MDSALUtil.syncWrite(dataBroker, LogicalDatastoreType.OPERATIONAL, subOpIdentifier, subOpEntry);
            LOG.info("{} onInterfaceUp: Updated subnetopdataentry to OP Datastore port {} up for subnet {}" + " subnetIp {} vpnName {} rd {} TaskState {} lastTaskState {} ", LOGGING_PREFIX, intfName, subnetId.getValue(), subOpEntry.getSubnetCidr(), subOpEntry.getVpnName(), subOpEntry.getVrfId(), subOpEntry.getRouteAdvState(), subOpEntry.getLastAdvState());
        } catch (Exception ex) {
            LOG.error("{} onInterfaceUp: Updation of SubnetOpDataEntry for subnet {} on port {} up failed", LOGGING_PREFIX, subnetId.getValue(), intfName, ex);
        } finally {
            VpnUtil.unlockSubnet(lockManager, subnetId.getValue());
        }
    } catch (RuntimeException e) {
        LOG.error("{} onInterfaceUp: Unable to handle interface up event for port {} in subnet {}", LOGGING_PREFIX, intfName, subnetId.getValue(), e);
    }
}

Example 78 with Bgp

use of org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.Bgp in project netvirt by opendaylight.

the class InterVpnLinkUtil method leakRoute.

/**
 * Leaks a route from one VPN to another. By default, the origin for this leaked route is INTERVPN.
 *
 * @param broker dataBroker service reference
 * @param bgpManager Used to advertise routes to the BGP Router
 * @param interVpnLink Reference to the object that holds the info about the link between the 2 VPNs
 * @param srcVpnUuid UUID of the VPN that has the route that is going to be leaked to the other VPN
 * @param dstVpnUuid UUID of the VPN that is going to receive the route
 * @param prefix Prefix of the route
 * @param label Label of the route in the original VPN
 */
// TODO Clean up the exception handling
@SuppressWarnings("checkstyle:IllegalCatch")
public static void leakRoute(DataBroker broker, IBgpManager bgpManager, InterVpnLink interVpnLink, String srcVpnUuid, String dstVpnUuid, String prefix, Long label) {
    Preconditions.checkNotNull(interVpnLink);
    // The source VPN must participate in the InterVpnLink
    Preconditions.checkArgument(interVpnLink.getFirstEndpoint().getVpnUuid().getValue().equals(srcVpnUuid) || interVpnLink.getSecondEndpoint().getVpnUuid().getValue().equals(srcVpnUuid), "The source VPN {} does not participate in the interVpnLink {}", srcVpnUuid, interVpnLink.getName());
    // The destination VPN must participate in the InterVpnLink
    Preconditions.checkArgument(interVpnLink.getFirstEndpoint().getVpnUuid().getValue().equals(dstVpnUuid) || interVpnLink.getSecondEndpoint().getVpnUuid().getValue().equals(dstVpnUuid), "The destination VPN {} does not participate in the interVpnLink {}", dstVpnUuid, interVpnLink.getName());
    boolean destinationIs1stEndpoint = interVpnLink.getFirstEndpoint().getVpnUuid().getValue().equals(dstVpnUuid);
    String endpointIp = destinationIs1stEndpoint ? interVpnLink.getSecondEndpoint().getIpAddress().getValue() : interVpnLink.getFirstEndpoint().getIpAddress().getValue();
    VrfEntry newVrfEntry = FibHelper.getVrfEntryBuilder(prefix, label, endpointIp, RouteOrigin.INTERVPN, null).build();
    String dstVpnRd = VpnUtil.getVpnRd(broker, dstVpnUuid);
    InstanceIdentifier<VrfEntry> newVrfEntryIid = InstanceIdentifier.builder(FibEntries.class).child(VrfTables.class, new VrfTablesKey(dstVpnRd)).child(VrfEntry.class, new VrfEntryKey(newVrfEntry.getDestPrefix())).build();
    VpnUtil.asyncWrite(broker, LogicalDatastoreType.CONFIGURATION, newVrfEntryIid, newVrfEntry);
    // Finally, route is advertised it to the DC-GW. But while in the FibEntries the nexthop is the other
    // endpoint's IP, in the DC-GW the nexthop for those prefixes are the IPs of those DPNs where the target
    // VPN has been instantiated
    Optional<InterVpnLinkState> optVpnLinkState = getInterVpnLinkState(broker, interVpnLink.getName());
    if (optVpnLinkState.isPresent()) {
        InterVpnLinkState vpnLinkState = optVpnLinkState.get();
        List<BigInteger> dpnIdList = destinationIs1stEndpoint ? vpnLinkState.getFirstEndpointState().getDpId() : vpnLinkState.getSecondEndpointState().getDpId();
        List<String> nexthops = new ArrayList<>();
        for (BigInteger dpnId : dpnIdList) {
            nexthops.add(InterfaceUtils.getEndpointIpAddressForDPN(broker, dpnId));
        }
        try {
            LOG.debug("Advertising route in VPN={} [prefix={} label={}  nexthops={}] to DC-GW", dstVpnRd, newVrfEntry.getDestPrefix(), label.intValue(), nexthops);
            bgpManager.advertisePrefix(dstVpnRd, null, /*macAddress*/
            newVrfEntry.getDestPrefix(), nexthops, VrfEntry.EncapType.Mplsgre, label.intValue(), 0, /*l3vni*/
            0, /*l2vni*/
            null);
        } catch (Exception ex) {
            LOG.error("Could not advertise prefix {} with label {} to VPN rd={}", newVrfEntry.getDestPrefix(), label.intValue(), dstVpnRd, ex);
        }
    } else {
        LOG.warn("Error when advertising leaked routes: Could not find State for InterVpnLink={}", interVpnLink.getName());
    }
}

Example 79 with Bgp

use of org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.Bgp in project netvirt by opendaylight.

the class BgpConfigurationManager method replay.

@SuppressWarnings("checkstyle:IllegalCatch")
public synchronized boolean replay() throws InterruptedException, TimeoutException, ExecutionException {
    boolean replaySucceded = true;
    String host = getConfigHost();
    int port = getConfigPort();
    LOG.error("connecting  to bgp host {} ", host);
    boolean res = bgpRouter.connect(host, port);
    if (!res) {
        LOG.error("Cannot connect to BGP config server at {}:{}{}", host, port, config != null ? "; Configuration Replay aborted" : "");
        return replaySucceded;
    }
    config = getConfig();
    if (config == null) {
        LOG.error("bgp config is empty nothing to push to bgp");
        return replaySucceded;
    }
    BgpRouter br = bgpRouter;
    AsId asId = config.getAsId();
    if (asId == null) {
        LOG.error("bgp as-id is null");
        return replaySucceded;
    }
    long asNum = asId.getLocalAs();
    IpAddress routerId = asId.getRouterId();
    String rid = routerId == null ? "" : new String(routerId.getValue());
    int stalepathTime = (int) getStalePathtime(RESTART_DEFAULT_GR, config.getAsId());
    boolean announceFbit = true;
    boolean replayDone = false;
    final int numberOfStartBgpRetries = 3;
    RetryOnException startBgpRetry = new RetryOnException(numberOfStartBgpRetries);
    do {
        try {
            LOG.debug("Replaying BGPConfig ");
            br.startBgp(asNum, rid, stalepathTime, announceFbit);
            LOG.debug("Replay BGPConfig successful");
            replayDone = true;
            break;
        } catch (BgpRouterException bre) {
            if (bre.getErrorCode() == BgpRouterException.BGP_ERR_ACTIVE) {
                LOG.debug("Starting the routesync for exception", bre);
                startBgpRetry.errorOccured();
                if (!startBgpRetry.shouldRetry()) {
                    LOG.debug("starting route sync for BgpRouter exception");
                    doRouteSync();
                }
            } else {
                LOG.error("Replay: startBgp() received exception error {} : ", bre.getErrorCode(), bre);
                startBgpRetry.errorOccured();
            }
        } catch (TApplicationException tae) {
            if (tae.getType() == BgpRouterException.BGP_ERR_ACTIVE) {
                LOG.debug("Starting the routesync for exception", tae);
                startBgpRetry.errorOccured();
                if (!startBgpRetry.shouldRetry()) {
                    LOG.debug("starting route sync for Thrift BGP_ERR_ACTIVE exception");
                    doRouteSync();
                }
            } else if (tae.getType() == BgpRouterException.BGP_ERR_COMMON_FAILURE) {
                LOG.debug("Starting the routesync for AS-ID started exception", tae);
                startBgpRetry.errorOccured();
                if (!startBgpRetry.shouldRetry()) {
                    LOG.debug("starting route sync for Thrift BGP_ERR_COMMON_FAILURE exception");
                    doRouteSync();
                }
            } else {
                LOG.error("Replay: startBgp() received exception type {}: ", tae.getType(), tae);
                startBgpRetry.errorOccured();
            }
        } catch (Exception e) {
            // not unusual. We may have restarted & BGP is already on
            LOG.error("Replay:startBgp() received exception: ", e);
            startBgpRetry.errorOccured();
        }
    } while (startBgpRetry.shouldRetry());
    replaySucceded = replayDone;
    startBgpCountersTask();
    startBgpAlarmsTask();
    /*
         * commenting this due to a bug with QBGP. Will uncomment once QBGP fix is done.
         * This wont have any functional impacts
         */
    // try {
    // br.delayEOR(delayEorSeconds);
    // } catch (TException | BgpRouterException e) {
    // LOG.error("Replay: delayEOR() number of seconds to wait for EOR from ODL:", e);
    // }
    List<Neighbors> neighbors = config.getNeighbors();
    if (neighbors != null) {
        LOG.error("configuring existing Neighbors present for replay total neighbors {}", neighbors.size());
        boolean neighborConfigReplayResult = replayNbrConfig(neighbors, br);
        if (neighborConfigReplayResult == false) {
            replaySucceded = false;
        }
    } else {
        LOG.error("no Neighbors present for replay config ");
    }
    Logging logging = config.getLogging();
    if (logging != null) {
        try {
            br.setLogging(logging.getFile(), logging.getLevel());
        } catch (TException | BgpRouterException e) {
            LOG.error("Replay:setLogging() received exception", e);
        }
    }
    GracefulRestart gracefulRestart = config.getGracefulRestart();
    if (gracefulRestart != null) {
        try {
            br.addGracefulRestart(gracefulRestart.getStalepathTime().intValue());
        } catch (TException | BgpRouterException e) {
            LOG.error("Replay:addGr() received exception", e);
        }
    }
    List<Vrfs> vrfs = config.getVrfs();
    if (vrfs == null) {
        vrfs = new ArrayList<>();
    }
    for (Vrfs vrf : vrfs) {
        for (AddressFamiliesVrf adf : vrf.getAddressFamiliesVrf()) {
            try {
                br.addVrf(BgpUtil.getLayerType(adf), vrf.getRd(), vrf.getImportRts(), vrf.getExportRts());
            } catch (TException | BgpRouterException e) {
                LOG.error("Replay:addVrf() received exception", e);
            }
        }
    }
    List<Networks> ln = config.getNetworks();
    if (ln != null) {
        for (Networks net : ln) {
            String rd = net.getRd();
            String pfxlen = net.getPrefixLen();
            String nh = net.getNexthop().getValue();
            Long label = net.getLabel();
            int lbl = label == null ? 0 : label.intValue();
            int l3vni = net.getL3vni() == null ? 0 : net.getL3vni().intValue();
            int l2vni = net.getL2vni() == null ? 0 : net.getL2vni().intValue();
            if (rd == null && lbl > 0) {
                // LU prefix is being deleted.
                rd = Integer.toString(lbl);
            }
            BgpControlPlaneType protocolType = net.getBgpControlPlaneType();
            int ethernetTag = net.getEthtag().intValue();
            String esi = net.getEsi();
            String macaddress = net.getMacaddress();
            EncapType encapType = net.getEncapType();
            String routerMac = net.getRoutermac();
            try {
                br.addPrefix(rd, pfxlen, nh, lbl, l3vni, l2vni, BgpUtil.convertToThriftProtocolType(protocolType), ethernetTag, esi, macaddress, BgpUtil.convertToThriftEncapType(encapType), routerMac);
            } catch (TException | BgpRouterException e) {
                LOG.error("Replay:addPfx() received exception", e);
            }
        }
    }
    List<Multipath> multipaths = config.getMultipath();
    if (multipaths != null) {
        for (Multipath multipath : multipaths) {
            if (multipath != null) {
                af_afi afi = af_afi.findByValue(multipath.getAfi().intValue());
                af_safi safi = af_safi.findByValue(multipath.getSafi().intValue());
                try {
                    if (multipath.isMultipathEnabled()) {
                        br.enableMultipath(afi, safi);
                    } else {
                        br.disableMultipath(afi, safi);
                    }
                } catch (TException | BgpRouterException e) {
                    LOG.info("Replay:multipaths() received exception", e);
                }
            }
        }
    }
    List<VrfMaxpath> vrfMaxpaths = config.getVrfMaxpath();
    if (vrfMaxpaths != null) {
        for (VrfMaxpath vrfMaxpath : vrfMaxpaths) {
            try {
                br.multipaths(vrfMaxpath.getRd(), vrfMaxpath.getMaxpaths());
            } catch (TException | BgpRouterException e) {
                LOG.info("Replay:vrfMaxPath() received exception", e);
            }
        }
    }
    // send End of Rib Marker to Qthriftd.
    final int numberOfEORRetries = 3;
    replayDone = false;
    RetryOnException eorRetry = new RetryOnException(numberOfEORRetries);
    do {
        try {
            br.sendEOR();
            LOG.debug("Replay sendEOR {} successful");
            replayDone = true;
            break;
        } catch (Exception e) {
            eorRetry.errorOccured();
            LOG.error("Replay:sedEOR() received exception:", e);
        }
    } while (eorRetry.shouldRetry());
    return replaySucceded && replayDone;
}

Example 80 with Bgp

use of org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.Bgp in project netvirt by opendaylight.

the class BgpConfigurationManager method createStaleFibMap.

/*
     * BGP restart scenario, ODL-BGP manager was/is running.
     * On re-sync notification, Get a copy of FIB database.
     */
public void createStaleFibMap() {
    totalStaledCount = 0;
    try {
        staledFibEntriesMap.clear();
        InstanceIdentifier<FibEntries> id = InstanceIdentifier.create(FibEntries.class);
        Optional<FibEntries> fibEntries = SingleTransactionDataBroker.syncReadOptional(dataBroker, LogicalDatastoreType.CONFIGURATION, id);
        if (fibEntries.isPresent()) {
            List<VrfTables> staleVrfTables = fibEntries.get().getVrfTables();
            for (VrfTables vrfTable : staleVrfTables) {
                Map<String, Long> staleFibEntMap = new HashMap<>();
                for (VrfEntry vrfEntry : vrfTable.getVrfEntry()) {
                    if (RouteOrigin.value(vrfEntry.getOrigin()) != RouteOrigin.BGP) {
                        // Stale marking and cleanup is only meant for the routes learned through BGP.
                        continue;
                    }
                    if (Thread.interrupted()) {
                        break;
                    }
                    totalStaledCount++;
                    // Create MAP from staleVrfTables.
                    vrfEntry.getRoutePaths().forEach(routePath -> staleFibEntMap.put(appendNextHopToPrefix(vrfEntry.getDestPrefix(), routePath.getNexthopAddress()), routePath.getLabel()));
                }
                staledFibEntriesMap.put(vrfTable.getRouteDistinguisher(), staleFibEntMap);
            }
        } else {
            LOG.error("createStaleFibMap:: FIBentries.class is not present");
        }
    } catch (ReadFailedException e) {
        LOG.error("createStaleFibMap:: error ", e);
    }
    LOG.error("created {} staled entries ", totalStaledCount);
}