Augment vxlan to support decap-next: YANG model

Change-Id: I97571254c7da7d010d542515864d8f39ea1499d1
Signed-off-by: Hongjun Ni <hongjun.ni@intel.com>

5 files changed, 147 insertions, 75 deletions

diff --git a/v3po/api/src/main/yang/v3po.yang b/v3po/api/src/main/yang/v3po.yang
index fff8293d5..c1c0ce23d 100644
--- a/v3po/api/src/main/yang/v3po.yang
+++ b/v3po/api/src/main/yang/v3po.yang
@@ -328,6 +328,28 @@ module v3po {
     }
   }
 
+  /*
+   * Defines the supported decap node for vxlan.
+   */
+  identity decap-node {
+    description
+    "Define the supported decap node";
+  }
+  identity l2-input {
+    base decap-node;
+    description
+    "The next decap node is l2-input";
+  }
+  identity nsh-proxy {
+    base decap-node;
+    description
+    "The next decap node is nsh-proxy";
+  }
+  typedef vxlan-decap-node {
+    type identityref {
+      base "decap-node";
+    }
+  }
   grouping vxlan-base-attributes {
     // FIXME: this should be in an vxlan-specific extension
     leaf src {
@@ -345,6 +367,10 @@ module v3po {
     leaf encap-vrf-id {
       type uint32;
     }
+    leaf decap-next {
+      type vxlan-decap-node;
+      default "l2-input";
+    }
   }
 
   grouping gre-base-attributes {
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/VxlanCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/VxlanCustomizer.java
index ec2193476..2e5da5adb 100644
--- a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/VxlanCustomizer.java
+++ b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/VxlanCustomizer.java
@@ -18,28 +18,34 @@ package io.fd.hc2vpp.v3po.interfaces;
 
 import static com.google.common.base.Preconditions.checkArgument;
 
-import com.google.common.net.InetAddresses;
-import io.fd.hc2vpp.v3po.DisabledInterfacesManager;
-import io.fd.hc2vpp.common.translate.util.AbstractInterfaceTypeCustomizer;
-import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
-import io.fd.hc2vpp.common.translate.util.NamingContext;
-import io.fd.honeycomb.translate.write.WriteContext;
-import io.fd.honeycomb.translate.write.WriteFailedException;
-import io.fd.vpp.jvpp.core.dto.VxlanAddDelTunnel;
-import io.fd.vpp.jvpp.core.dto.VxlanAddDelTunnelReply;
-import io.fd.vpp.jvpp.core.future.FutureJVppCore;
 import java.net.InetAddress;
 import java.util.concurrent.CompletionStage;
+
 import javax.annotation.Nonnull;
+
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfaceType;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.L2Input;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.NshProxy;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VxlanTunnel;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces._interface.Vxlan;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.google.common.net.InetAddresses;
+
+import io.fd.hc2vpp.common.translate.util.AbstractInterfaceTypeCustomizer;
+import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.hc2vpp.v3po.DisabledInterfacesManager;
+import io.fd.honeycomb.translate.write.WriteContext;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import io.fd.vpp.jvpp.core.dto.VxlanAddDelTunnel;
+import io.fd.vpp.jvpp.core.dto.VxlanAddDelTunnelReply;
+import io.fd.vpp.jvpp.core.future.FutureJVppCore;
+
 public class VxlanCustomizer extends AbstractInterfaceTypeCustomizer<Vxlan> implements JvppReplyConsumer {
 
     private static final Logger LOG = LoggerFactory.getLogger(VxlanCustomizer.class);
@@ -48,8 +54,8 @@ public class VxlanCustomizer extends AbstractInterfaceTypeCustomizer<Vxlan> impl
     private final DisabledInterfacesManager interfaceDisableContext;
 
     public VxlanCustomizer(@Nonnull final FutureJVppCore vppApi,
-                           @Nonnull final NamingContext interfaceNamingContext,
-                           @Nonnull final DisabledInterfacesManager interfaceDisableContext) {
+            @Nonnull final NamingContext interfaceNamingContext,
+            @Nonnull final DisabledInterfacesManager interfaceDisableContext) {
         super(vppApi);
         this.interfaceNamingContext = interfaceNamingContext;
         this.interfaceDisableContext = interfaceDisableContext;
@@ -62,44 +68,51 @@ public class VxlanCustomizer extends AbstractInterfaceTypeCustomizer<Vxlan> impl
 
     @Override
     protected final void writeInterface(@Nonnull final InstanceIdentifier<Vxlan> id, @Nonnull final Vxlan dataAfter,
-                                        @Nonnull final WriteContext writeContext)
-            throws WriteFailedException {
+            @Nonnull final WriteContext writeContext)
+                    throws WriteFailedException {
         final String swIfName = id.firstKeyOf(Interface.class).getName();
         createVxlanTunnel(id, swIfName, dataAfter, writeContext);
     }
 
     @Override
     public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<Vxlan> id, @Nonnull final Vxlan dataBefore,
-                                        @Nonnull final Vxlan dataAfter, @Nonnull final WriteContext writeContext)
-            throws WriteFailedException.UpdateFailedException {
+            @Nonnull final Vxlan dataAfter, @Nonnull final WriteContext writeContext)
+                    throws WriteFailedException.UpdateFailedException {
         throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter,
                 new UnsupportedOperationException("Vxlan tunnel update is not supported"));
     }
 
     @Override
     public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Vxlan> id, @Nonnull final Vxlan dataBefore,
-                                        @Nonnull final WriteContext writeContext)
-            throws WriteFailedException {
+            @Nonnull final WriteContext writeContext)
+                    throws WriteFailedException {
         final String swIfName = id.firstKeyOf(Interface.class).getName();
         deleteVxlanTunnel(id, swIfName, dataBefore, writeContext);
     }
 
     private void createVxlanTunnel(final InstanceIdentifier<Vxlan> id, final String swIfName, final Vxlan vxlan,
-                                   final WriteContext writeContext)
-            throws WriteFailedException {
+            final WriteContext writeContext)
+                    throws WriteFailedException {
         final byte isIpv6 = (byte) (isIpv6(vxlan)
                 ? 1
-                : 0);
+                        : 0);
         final InetAddress srcAddress = InetAddresses.forString(getAddressString(vxlan.getSrc()));
         final InetAddress dstAddress = InetAddresses.forString(getAddressString(vxlan.getDst()));
 
         int encapVrfId = vxlan.getEncapVrfId().intValue();
         int vni = vxlan.getVni().getValue().intValue();
 
+        int decapNext = -1;
+        if (vxlan.getDecapNext() == L2Input.class) {
+            decapNext = 1;
+        } else if (vxlan.getDecapNext() == NshProxy.class) {
+            decapNext = 2;
+        }
+
         LOG.debug("Setting vxlan tunnel for interface: {}. Vxlan: {}", swIfName, vxlan);
         final CompletionStage<VxlanAddDelTunnelReply> vxlanAddDelTunnelReplyCompletionStage =
                 getFutureJVpp().vxlanAddDelTunnel(getVxlanTunnelRequest((byte) 1 /* is add */, srcAddress.getAddress(),
-                        dstAddress.getAddress(), encapVrfId, -1, vni, isIpv6));
+                        dstAddress.getAddress(), encapVrfId, decapNext, vni, isIpv6));
 
         final VxlanAddDelTunnelReply reply =
                 getReplyForCreate(vxlanAddDelTunnelReplyCompletionStage.toCompletableFuture(), id, vxlan);
@@ -145,24 +158,31 @@ public class VxlanCustomizer extends AbstractInterfaceTypeCustomizer<Vxlan> impl
     private String getAddressString(final IpAddress addr) {
         return addr.getIpv4Address() == null
                 ? addr.getIpv6Address().getValue()
-                : addr.getIpv4Address().getValue();
+                        : addr.getIpv4Address().getValue();
     }
 
     private void deleteVxlanTunnel(final InstanceIdentifier<Vxlan> id, final String swIfName, final Vxlan vxlan,
-                                   final WriteContext writeContext) throws WriteFailedException {
+            final WriteContext writeContext) throws WriteFailedException {
         final byte isIpv6 = (byte) (isIpv6(vxlan)
                 ? 1
-                : 0);
+                        : 0);
         final InetAddress srcAddress = InetAddresses.forString(getAddressString(vxlan.getSrc()));
         final InetAddress dstAddress = InetAddresses.forString(getAddressString(vxlan.getDst()));
 
         int encapVrfId = vxlan.getEncapVrfId().intValue();
         int vni = vxlan.getVni().getValue().intValue();
 
+        int decapNext = -1;
+        if (vxlan.getDecapNext() == L2Input.class) {
+            decapNext = 1;
+        } else if (vxlan.getDecapNext() == NshProxy.class) {
+            decapNext = 2;
+        }
+
         LOG.debug("Deleting vxlan tunnel for interface: {}. Vxlan: {}", swIfName, vxlan);
         final CompletionStage<VxlanAddDelTunnelReply> vxlanAddDelTunnelReplyCompletionStage =
                 getFutureJVpp().vxlanAddDelTunnel(getVxlanTunnelRequest((byte) 0 /* is add */, srcAddress.getAddress(),
-                        dstAddress.getAddress(), encapVrfId, -1, vni, isIpv6));
+                        dstAddress.getAddress(), encapVrfId, decapNext, vni, isIpv6));
 
         getReplyForDelete(vxlanAddDelTunnelReplyCompletionStage.toCompletableFuture(), id);
         LOG.debug("Vxlan tunnel deleted successfully for: {}, vxlan: {}", swIfName, vxlan);
@@ -177,8 +197,8 @@ public class VxlanCustomizer extends AbstractInterfaceTypeCustomizer<Vxlan> impl
     }
 
     private static VxlanAddDelTunnel getVxlanTunnelRequest(final byte isAdd, final byte[] srcAddr, final byte[] dstAddr,
-                                                           final int encapVrfId,
-                                                           final int decapNextIndex, final int vni, final byte isIpv6) {
+            final int encapVrfId,
+            final int decapNextIndex, final int vni, final byte isIpv6) {
         final VxlanAddDelTunnel vxlanAddDelTunnel = new VxlanAddDelTunnel();
         vxlanAddDelTunnel.isAdd = isAdd;
         vxlanAddDelTunnel.srcAddress = srcAddr;
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfacesstate/VxlanCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfacesstate/VxlanCustomizer.java
index d3174e643..485897d76 100644
--- a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfacesstate/VxlanCustomizer.java
+++ b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfacesstate/VxlanCustomizer.java
@@ -18,28 +18,20 @@ package io.fd.hc2vpp.v3po.interfacesstate;
 
 import static com.google.common.base.Preconditions.checkState;
 
-import io.fd.honeycomb.translate.read.ReadContext;
-import io.fd.honeycomb.translate.read.ReadFailedException;
-import io.fd.honeycomb.translate.spi.read.Initialized;
-import io.fd.honeycomb.translate.spi.read.InitializingReaderCustomizer;
-import io.fd.honeycomb.translate.util.RWUtils;
-import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
-import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
-import io.fd.hc2vpp.common.translate.util.NamingContext;
-import io.fd.vpp.jvpp.core.dto.VxlanTunnelDetails;
-import io.fd.vpp.jvpp.core.dto.VxlanTunnelDetailsReplyDump;
-import io.fd.vpp.jvpp.core.dto.VxlanTunnelDump;
-import io.fd.vpp.jvpp.core.future.FutureJVppCore;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.util.Arrays;
 import java.util.concurrent.CompletionStage;
+
 import javax.annotation.Nonnull;
+
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.L2Input;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.NshProxy;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VppInterfaceAugmentation;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VppInterfaceStateAugmentationBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VxlanTunnel;
@@ -52,8 +44,21 @@ import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
+import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.spi.read.Initialized;
+import io.fd.honeycomb.translate.spi.read.InitializingReaderCustomizer;
+import io.fd.honeycomb.translate.util.RWUtils;
+import io.fd.vpp.jvpp.core.dto.VxlanTunnelDetails;
+import io.fd.vpp.jvpp.core.dto.VxlanTunnelDetailsReplyDump;
+import io.fd.vpp.jvpp.core.dto.VxlanTunnelDump;
+import io.fd.vpp.jvpp.core.future.FutureJVppCore;
+
 public class VxlanCustomizer extends FutureJVppCustomizer
-        implements InitializingReaderCustomizer<Vxlan, VxlanBuilder>, InterfaceDataTranslator, JvppReplyConsumer {
+implements InitializingReaderCustomizer<Vxlan, VxlanBuilder>, InterfaceDataTranslator, JvppReplyConsumer {
 
     private static final Logger LOG = LoggerFactory.getLogger(VxlanCustomizer.class);
     private final NamingContext interfaceContext;
@@ -65,7 +70,7 @@ public class VxlanCustomizer extends FutureJVppCustomizer
 
     @Override
     public void merge(@Nonnull Builder<? extends DataObject> parentBuilder,
-                      @Nonnull Vxlan readValue) {
+            @Nonnull Vxlan readValue) {
         ((VppInterfaceStateAugmentationBuilder) parentBuilder).setVxlan(readValue);
     }
 
@@ -77,8 +82,8 @@ public class VxlanCustomizer extends FutureJVppCustomizer
 
     @Override
     public void readCurrentAttributes(@Nonnull final InstanceIdentifier<Vxlan> id,
-                                      @Nonnull final VxlanBuilder builder,
-                                      @Nonnull final ReadContext ctx) throws ReadFailedException {
+            @Nonnull final VxlanBuilder builder,
+            @Nonnull final ReadContext ctx) throws ReadFailedException {
 
         final InterfaceKey key = id.firstKeyOf(Interface.class);
         final int index = interfaceContext.getIndex(key.getName(), ctx.getMappingContext());
@@ -129,6 +134,17 @@ public class VxlanCustomizer extends FutureJVppCustomizer
         }
         builder.setEncapVrfId((long) swInterfaceVxlanDetails.encapVrfId);
         builder.setVni(new VxlanVni((long) swInterfaceVxlanDetails.vni));
+        switch (swInterfaceVxlanDetails.decapNextIndex) {
+        case 1:
+            builder.setDecapNext(L2Input.class);
+            break;
+        case 2:
+            builder.setDecapNext(NshProxy.class);
+            break;
+        default:
+            LOG.trace("Unsupported decap next index for vxlan: {}", swInterfaceVxlanDetails.decapNextIndex);
+            return;
+        }
         LOG.debug("Vxlan tunnel: {}, id: {} attributes read as: {}", key.getName(), index, builder);
     }
 
@@ -146,11 +162,12 @@ public class VxlanCustomizer extends FutureJVppCustomizer
             @Nonnull final InstanceIdentifier<Vxlan> id, @Nonnull final Vxlan readValue, @Nonnull final ReadContext ctx) {
         return Initialized.create(getCfgId(id),
                 new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces._interface.VxlanBuilder()
-                        .setDst(readValue.getDst())
-                        .setSrc(readValue.getSrc())
-                        .setEncapVrfId(readValue.getEncapVrfId())
-                        .setVni(new VxlanVni(readValue.getVni()))
-                        .build());
+                .setDst(readValue.getDst())
+                .setSrc(readValue.getSrc())
+                .setEncapVrfId(readValue.getEncapVrfId())
+                .setVni(new VxlanVni(readValue.getVni()))
+                .setDecapNext(readValue.getDecapNext())
+                .build());
     }
 
     private InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces._interface.Vxlan> getCfgId(
diff --git a/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfaces/VxlanCustomizerTest.java b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfaces/VxlanCustomizerTest.java
index e39c523d3..2ab72b159 100644
--- a/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfaces/VxlanCustomizerTest.java
+++ b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfaces/VxlanCustomizerTest.java
@@ -20,22 +20,13 @@ import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.eq;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
-import com.google.common.net.InetAddresses;
-import io.fd.hc2vpp.common.test.write.WriterCustomizerTest;
-import io.fd.hc2vpp.common.translate.util.NamingContext;
-import io.fd.hc2vpp.v3po.DisabledInterfacesManager;
-import io.fd.honeycomb.translate.write.WriteFailedException;
-import io.fd.vpp.jvpp.VppBaseCallException;
-import io.fd.vpp.jvpp.VppInvocationException;
-import io.fd.vpp.jvpp.core.dto.VxlanAddDelTunnel;
-import io.fd.vpp.jvpp.core.dto.VxlanAddDelTunnelReply;
 import org.junit.Test;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
@@ -44,12 +35,24 @@ import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.L2Input;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VppInterfaceAugmentation;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VxlanVni;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces._interface.Vxlan;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces._interface.VxlanBuilder;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 
+import com.google.common.net.InetAddresses;
+
+import io.fd.hc2vpp.common.test.write.WriterCustomizerTest;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.hc2vpp.v3po.DisabledInterfacesManager;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import io.fd.vpp.jvpp.VppBaseCallException;
+import io.fd.vpp.jvpp.VppInvocationException;
+import io.fd.vpp.jvpp.core.dto.VxlanAddDelTunnel;
+import io.fd.vpp.jvpp.core.dto.VxlanAddDelTunnelReply;
+
 public class VxlanCustomizerTest extends WriterCustomizerTest {
 
     private static final byte ADD_VXLAN = 1;
@@ -68,6 +71,7 @@ public class VxlanCustomizerTest extends WriterCustomizerTest {
         builder.setDst(new IpAddress(new Ipv4Address("192.168.20.11")));
         builder.setEncapVrfId(Long.valueOf(123));
         builder.setVni(new VxlanVni(Long.valueOf(vni)));
+        builder.setDecapNext(L2Input.class);
         return builder.build();
     }
 
@@ -78,14 +82,14 @@ public class VxlanCustomizerTest extends WriterCustomizerTest {
     @Override
     public void setUpTest() throws Exception {
         InterfaceTypeTestUtils.setupWriteContext(writeContext,
-            org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VxlanTunnel.class);
+                org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VxlanTunnel.class);
 
         customizer =
-            new VxlanCustomizer(api, new NamingContext("generateInterfaceNAme", "test-instance"), disableContext);
+                new VxlanCustomizer(api, new NamingContext("generateInterfaceNAme", "test-instance"), disableContext);
 
         ifaceName = "eth0";
         id = InstanceIdentifier.create(Interfaces.class).child(Interface.class, new InterfaceKey(ifaceName))
-            .augmentation(VppInterfaceAugmentation.class).child(Vxlan.class);
+                .augmentation(VppInterfaceAugmentation.class).child(Vxlan.class);
     }
 
     private void whenVxlanAddDelTunnelThenSuccess() {
@@ -101,11 +105,11 @@ public class VxlanCustomizerTest extends WriterCustomizerTest {
         verify(api).vxlanAddDelTunnel(argumentCaptor.capture());
         final VxlanAddDelTunnel actual = argumentCaptor.getValue();
         assertEquals(0, actual.isIpv6);
-        assertEquals(-1, actual.decapNextIndex);
+        assertEquals(1, actual.decapNextIndex);
         assertArrayEquals(InetAddresses.forString(vxlan.getSrc().getIpv4Address().getValue()).getAddress(),
-            actual.srcAddress);
+                actual.srcAddress);
         assertArrayEquals(InetAddresses.forString(vxlan.getDst().getIpv4Address().getValue()).getAddress(),
-            actual.dstAddress);
+                actual.dstAddress);
         assertEquals(vxlan.getEncapVrfId().intValue(), actual.encapVrfId);
         assertEquals(vxlan.getVni().getValue().intValue(), actual.vni);
         return actual;
@@ -161,7 +165,7 @@ public class VxlanCustomizerTest extends WriterCustomizerTest {
         // Remove the first mapping before putting in the new one
         verify(mappingContext).delete(eq(mappingIid(ifaceName, "test-instance")));
         verify(mappingContext)
-            .put(eq(mappingIid(ifaceName, "test-instance")), eq(mapping(ifaceName, ifaceId).get()));
+        .put(eq(mappingIid(ifaceName, "test-instance")), eq(mapping(ifaceName, ifaceId).get()));
     }
 
     @Test
@@ -177,7 +181,7 @@ public class VxlanCustomizerTest extends WriterCustomizerTest {
             verifyVxlanAddWasInvoked(vxlan);
             // Mapping not stored due to failure
             verify(mappingContext, times(0))
-                .put(eq(mappingIid(ifaceName, "test-instance")), eq(mapping(ifaceName, 0).get()));
+            .put(eq(mappingIid(ifaceName, "test-instance")), eq(mapping(ifaceName, 0).get()));
             return;
         }
         fail("WriteFailedException.CreateFailedException was expected");
diff --git a/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/VxlanCustomizerTest.java b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/VxlanCustomizerTest.java
index d59d13672..41b0c4927 100644
--- a/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/VxlanCustomizerTest.java
+++ b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/VxlanCustomizerTest.java
@@ -19,28 +19,32 @@ package io.fd.hc2vpp.v3po.interfacesstate;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
-import static org.mockito.Matchers.any;
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyZeroInteractions;
 
-import com.google.common.collect.Lists;
-import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
-import io.fd.hc2vpp.common.translate.util.NamingContext;
-import io.fd.hc2vpp.common.test.read.ReaderCustomizerTest;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.util.HashMap;
 import java.util.Map;
+
 import org.junit.Test;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesState;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.L2Input;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VppInterfaceStateAugmentation;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.VppInterfaceStateAugmentationBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces.state._interface.Vxlan;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev161214.interfaces.state._interface.VxlanBuilder;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+import com.google.common.collect.Lists;
+
+import io.fd.hc2vpp.common.test.read.ReaderCustomizerTest;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
 import io.fd.vpp.jvpp.VppInvocationException;
 import io.fd.vpp.jvpp.core.dto.SwInterfaceDetails;
 import io.fd.vpp.jvpp.core.dto.VxlanTunnelDetails;
@@ -55,7 +59,7 @@ public class VxlanCustomizerTest extends ReaderCustomizerTest<Vxlan, VxlanBuilde
 
     private NamingContext interfacesContext;
     static final InstanceIdentifier<Vxlan> IID =
-        InstanceIdentifier.create(InterfacesState.class).child(Interface.class, new InterfaceKey(IF_NAME))
+            InstanceIdentifier.create(InterfacesState.class).child(Interface.class, new InterfaceKey(IF_NAME))
             .augmentation(VppInterfaceStateAugmentation.class).child(Vxlan.class);
 
     public VxlanCustomizerTest() {
@@ -76,12 +80,12 @@ public class VxlanCustomizerTest extends ReaderCustomizerTest<Vxlan, VxlanBuilde
         final VxlanTunnelDetailsReplyDump value = new VxlanTunnelDetailsReplyDump();
         final VxlanTunnelDetails vxlanTunnelDetails = new VxlanTunnelDetails();
         vxlanTunnelDetails.isIpv6 = 0;
-        vxlanTunnelDetails.decapNextIndex = 1;
         vxlanTunnelDetails.dstAddress = InetAddress.getByName("1.2.3.4").getAddress();
         vxlanTunnelDetails.srcAddress = InetAddress.getByName("1.2.3.5").getAddress();
         vxlanTunnelDetails.encapVrfId = 55;
         vxlanTunnelDetails.swIfIndex = 0;
         vxlanTunnelDetails.vni = 9;
+        vxlanTunnelDetails.decapNextIndex = 1;
         value.vxlanTunnelDetails = Lists.newArrayList(vxlanTunnelDetails);
         doReturn(future(value)).when(api).vxlanTunnelDump(any(VxlanTunnelDump.class));
     }
@@ -93,6 +97,7 @@ public class VxlanCustomizerTest extends ReaderCustomizerTest<Vxlan, VxlanBuilde
 
         assertEquals(9, builder.getVni().getValue().intValue());
         assertEquals(55, builder.getEncapVrfId().intValue());
+        assertEquals(L2Input.class, builder.getDecapNext());
 
         assertNull(builder.getSrc().getIpv6Address());
         assertNotNull(builder.getSrc().getIpv4Address());