Examples with Nexthops org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.l3vpn.lb.nexthops.Nexthops used on opensource projects

Example 11 with Nexthops

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.l3vpn.lb.nexthops.Nexthops 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 12 with Nexthops

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.l3vpn.lb.nexthops.Nexthops in project netvirt by opendaylight.

the class FibUtil method updateUsedRdAndVpnToExtraRoute.

public void updateUsedRdAndVpnToExtraRoute(WriteTransaction writeOperTxn, String tunnelIpRemoved, String primaryRd, String prefix) {
    Optional<VpnInstanceOpDataEntry> optVpnInstance = getVpnInstanceOpData(primaryRd);
    if (!optVpnInstance.isPresent()) {
        return;
    }
    VpnInstanceOpDataEntry vpnInstance = optVpnInstance.get();
    String vpnName = vpnInstance.getVpnInstanceName();
    long vpnId = vpnInstance.getVpnId();
    List<String> usedRds = VpnExtraRouteHelper.getUsedRds(dataBroker, vpnId, prefix);
    // which rd is allocated for the particular OVS.
    for (String usedRd : usedRds) {
        Optional<Routes> vpnExtraRoutes = VpnExtraRouteHelper.getVpnExtraroutes(dataBroker, vpnName, usedRd, prefix);
        if (vpnExtraRoutes.isPresent()) {
            // Since all the nexthops under one OVS will be present under one rd, only 1 nexthop is read
            // to identify the OVS
            String nextHopRemoved = vpnExtraRoutes.get().getNexthopIpList().get(0);
            Prefixes prefixToInterface = getPrefixToInterface(vpnId, getIpPrefix(nextHopRemoved));
            if (prefixToInterface != null && tunnelIpRemoved.equals(getEndpointIpAddressForDPN(prefixToInterface.getDpnId()))) {
                InstanceIdentifier<Adjacency> adjId = getAdjacencyIdentifier(prefixToInterface.getVpnInterfaceName(), prefix);
                Interface ifState = getInterfaceStateFromOperDS(prefixToInterface.getVpnInterfaceName());
                // Delete datastore only if extra route is deleted or VM interface is deleted/down
                if (!MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, adjId).isPresent() || ifState == null || ifState.getOperStatus() == OperStatus.Down) {
                    writeOperTxn.delete(LogicalDatastoreType.OPERATIONAL, getAdjacencyIdentifier(prefixToInterface.getVpnInterfaceName(), prefix));
                    writeOperTxn.delete(LogicalDatastoreType.OPERATIONAL, VpnExtraRouteHelper.getVpnToExtrarouteVrfIdIdentifier(vpnName, usedRd, prefix));
                    writeOperTxn.delete(LogicalDatastoreType.CONFIGURATION, VpnExtraRouteHelper.getUsedRdsIdentifier(vpnId, prefix, nextHopRemoved));
                    break;
                }
            }
        }
    }
}

Example 13 with Nexthops

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.l3vpn.lb.nexthops.Nexthops in project netvirt by opendaylight.

the class FibUtil method updateLbGroupInfo.

public static void updateLbGroupInfo(BigInteger dpnId, String destinationIp, String groupIdKey, String groupId, WriteTransaction tx) {
    InstanceIdentifier<DpnLbNexthops> id = getDpnLbNexthopsIdentifier(dpnId, destinationIp);
    DpnLbNexthops dpnToLbNextHop = buildDpnLbNextHops(dpnId, destinationIp, groupIdKey);
    tx.merge(LogicalDatastoreType.OPERATIONAL, id, dpnToLbNextHop);
    InstanceIdentifier<Nexthops> nextHopsId = getNextHopsIdentifier(groupIdKey);
    Nexthops nextHopsToGroupId = buildNextHops(dpnId, groupIdKey, groupId);
    tx.merge(LogicalDatastoreType.OPERATIONAL, nextHopsId, nextHopsToGroupId);
}

Example 14 with Nexthops

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.l3vpn.lb.nexthops.Nexthops in project netvirt by opendaylight.

the class NexthopManager method updateDcGwLoadBalancingGroup.

/**
 * This method is invoked when the tunnel status is updated.
 * The bucket is directly removed/added based on the operational status of the tunnel.
 */
public void updateDcGwLoadBalancingGroup(List<String> availableDcGws, BigInteger dpnId, String destinationIp, boolean isTunnelUp) {
    Preconditions.checkNotNull(availableDcGws, "There are no dc-gws present");
    WriteTransaction configTx = dataBroker.newWriteOnlyTransaction();
    // TODO : Place the logic to construct all possible DC-GW combination here.
    int bucketId = availableDcGws.indexOf(destinationIp);
    Optional<DpnLbNexthops> dpnLbNextHops = fibUtil.getDpnLbNexthops(dpnId, destinationIp);
    if (!dpnLbNextHops.isPresent()) {
        return;
    }
    List<String> nextHopKeys = dpnLbNextHops.get().getNexthopKey();
    nextHopKeys.forEach(nextHopKey -> {
        Optional<Nexthops> optionalNextHops = fibUtil.getNexthops(nextHopKey);
        if (!optionalNextHops.isPresent()) {
            return;
        }
        Nexthops nexthops = optionalNextHops.get();
        final String groupId = nexthops.getGroupId();
        final long groupIdValue = Long.parseLong(groupId);
        if (isTunnelUp) {
            Bucket bucket = buildBucketForDcGwLbGroup(destinationIp, dpnId, bucketId);
            LOG.trace("Added bucket {} to group {} on dpn {}.", bucket, groupId, dpnId);
            mdsalApiManager.addBucketToTx(dpnId, groupIdValue, bucket, configTx);
        } else {
            LOG.trace("Removed bucketId {} from group {} on dpn {}.", bucketId, groupId, dpnId);
            mdsalApiManager.removeBucketToTx(dpnId, groupIdValue, bucketId, configTx);
        }
    });
    configTx.submit();
    return;
}

Example 15 with Nexthops

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.l3vpn.lb.nexthops.Nexthops in project netvirt by opendaylight.

the class VrfEntryListener method update.

@Override
// originalRoutePath is a little dicey - safest to keep the checking even if not needed.
@SuppressFBWarnings("RCN_REDUNDANT_NULLCHECK_OF_NONNULL_VALUE")
protected void update(InstanceIdentifier<VrfEntry> identifier, VrfEntry original, VrfEntry update) {
    Preconditions.checkNotNull(update, "VrfEntry should not be null or empty.");
    final String rd = identifier.firstKeyOf(VrfTables.class).getRouteDistinguisher();
    LOG.debug("UPDATE: Updating Fib Entries to rd {} prefix {} route-paths {} origin {} old-origin {}", rd, update.getDestPrefix(), update.getRoutePaths(), update.getOrigin(), original.getOrigin());
    // Handle BGP Routes first
    if (RouteOrigin.value(update.getOrigin()) == RouteOrigin.BGP) {
        bgpRouteVrfEntryHandler.updateFlows(identifier, original, update, rd);
        LOG.info("UPDATE: Updated BGP advertised Fib Entry with rd {} prefix {} route-paths {}", rd, update.getDestPrefix(), update.getRoutePaths());
        return;
    }
    if (RouteOrigin.value(update.getOrigin()) == RouteOrigin.STATIC) {
        List<RoutePaths> originalRoutePath = original.getRoutePaths();
        List<RoutePaths> updateRoutePath = update.getRoutePaths();
        LOG.info("UPDATE: Original route-path {} update route-path {} ", originalRoutePath, updateRoutePath);
        // Updates need to be handled for extraroute even if original vrf entry route path is null or
        // updated vrf entry route path is null. This can happen during tunnel events.
        Optional<VpnInstanceOpDataEntry> optVpnInstance = fibUtil.getVpnInstanceOpData(rd);
        List<String> usedRds = new ArrayList<>();
        if (optVpnInstance.isPresent()) {
            usedRds = VpnExtraRouteHelper.getUsedRds(dataBroker, optVpnInstance.get().getVpnId(), update.getDestPrefix());
        }
        // has nexthop , route needs to be created on remote Dpns
        if (originalRoutePath == null || originalRoutePath.isEmpty() && updateRoutePath != null && !updateRoutePath.isEmpty() && usedRds.isEmpty()) {
            // TODO(vivek): Though ugly, Not handling this code now, as each
            // tep add event will invoke flow addition
            LOG.trace("Original VRF entry NH is null for destprefix {}. And the prefix is not an extra route." + " This event is IGNORED here.", update.getDestPrefix());
            return;
        }
        // has nexthop empty'ed out, route needs to be removed from remote Dpns
        if (updateRoutePath == null || updateRoutePath.isEmpty() && originalRoutePath != null && !originalRoutePath.isEmpty() && usedRds.isEmpty()) {
            LOG.trace("Original VRF entry had valid NH for destprefix {}. And the prefix is not an extra route." + "This event is IGNORED here.", update.getDestPrefix());
            return;
        }
        // Update the used rds and vpntoextraroute containers only for the deleted nextHops.
        List<String> nextHopsRemoved = FibHelper.getNextHopListFromRoutePaths(original);
        nextHopsRemoved.removeAll(FibHelper.getNextHopListFromRoutePaths(update));
        WriteTransaction writeOperTxn = dataBroker.newWriteOnlyTransaction();
        nextHopsRemoved.parallelStream().forEach(nextHopRemoved -> fibUtil.updateUsedRdAndVpnToExtraRoute(writeOperTxn, nextHopRemoved, rd, update.getDestPrefix()));
        CheckedFuture<Void, TransactionCommitFailedException> operFuture = writeOperTxn.submit();
        try {
            operFuture.get();
        } catch (InterruptedException | ExecutionException e) {
            LOG.error("Exception encountered while submitting operational future for update vrfentry {}", update, e);
        }
        createFibEntries(identifier, update);
        LOG.info("UPDATE: Updated static Fib Entry with rd {} prefix {} route-paths {}", rd, update.getDestPrefix(), update.getRoutePaths());
        return;
    }
    // Handle all other routes only on a cluster reboot
    if (original.equals(update)) {
        // Reboot use-case
        createFibEntries(identifier, update);
        LOG.info("UPDATE: Updated Non-static Fib Entry with rd {} prefix {} route-paths {}", rd, update.getDestPrefix(), update.getRoutePaths());
        return;
    }
    LOG.info("UPDATE: Ignoring update for FIB entry with rd {} prefix {} route-origin {} route-paths {}", rd, update.getDestPrefix(), update.getOrigin(), update.getRoutePaths());
}