Bug 8599 - updating metadata endpoints
[groupbasedpolicy.git] / neutron-mapper / src / main / java / org / opendaylight / groupbasedpolicy / neutron / mapper / mapping / NeutronPortAware.java
index 2b7ed54607d47f3122172f7776408edeeef33123..368699ddaf02db78419d56c475d8dc4fed89e591 100644 (file)
@@ -10,17 +10,22 @@ package org.opendaylight.groupbasedpolicy.neutron.mapper.mapping;
 import static com.google.common.base.Preconditions.checkNotNull;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.Set;
+import java.util.concurrent.ExecutionException;
+import java.util.stream.Collectors;
 
 import javax.annotation.Nullable;
 
 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
+import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
 import org.opendaylight.groupbasedpolicy.domain_extension.l2_l3.util.L2L3IidFactory;
 import org.opendaylight.groupbasedpolicy.neutron.gbp.util.NeutronGbpIidFactory;
 import org.opendaylight.groupbasedpolicy.neutron.mapper.EndpointRegistrator;
+import org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure.MetadataService;
 import org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure.NetworkClient;
 import org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure.NetworkService;
 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.MappingUtils;
@@ -28,7 +33,9 @@ import org.opendaylight.groupbasedpolicy.neutron.mapper.util.PortUtils;
 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.SubnetUtils;
 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
 import org.opendaylight.groupbasedpolicy.util.IidFactory;
-import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev100924.MacAddress;
+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.IpPrefix;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInputBuilder;
@@ -36,6 +43,7 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpo
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.UnregisterEndpointInputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.NetworkContainmentBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.network.containment.containment.NetworkDomainContainmentBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.address.endpoints.AddressEndpoint;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.address.endpoints.AddressEndpointKey;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.has.child.endpoints.ChildEndpoint;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.has.child.endpoints.ChildEndpointBuilder;
@@ -60,9 +68,9 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.r
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L2Builder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L3;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L3Builder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev160427.IpPrefixType;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev160427.L3Context;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev160427.MacAddressType;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev170511.IpPrefixType;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev170511.L3Context;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev170511.MacAddressType;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.ForwardingContext;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.ForwardingContextBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.NetworkDomain;
@@ -73,9 +81,13 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gb
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.neutron.by.gbp.mappings.ports.by.endpoints.PortByEndpoint;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.L2BridgeDomain;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.L2BridgeDomainBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.binding.rev150712.PortBindingExtension;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIps;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIpsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIpsKey;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.Ports;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.PortBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
@@ -84,6 +96,7 @@ import org.slf4j.LoggerFactory;
 
 import com.google.common.base.Optional;
 import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
 
 public class NeutronPortAware implements NeutronAware<Port> {
 
@@ -92,14 +105,20 @@ public class NeutronPortAware implements NeutronAware<Port> {
             InstanceIdentifier.builder(Neutron.class).child(Ports.class).child(Port.class).build();
     private final DataBroker dataProvider;
     private final EndpointRegistrator epRegistrator;
+    private final IpPrefix metadataIpPrefix;
 
-    public NeutronPortAware(DataBroker dataProvider, EndpointRegistrator epRegistrator) {
+    public NeutronPortAware(DataBroker dataProvider, EndpointRegistrator epRegistrator,
+            @Nullable IpPrefix metadataIpPrefix) {
         this.dataProvider = checkNotNull(dataProvider);
         this.epRegistrator = checkNotNull(epRegistrator);
+        this.metadataIpPrefix = checkNotNull(metadataIpPrefix);
     }
 
-    @Override
-    public void onCreated(Port port, Neutron neutron) {
+    @Override public void onCreated(Port createdItem, Neutron neutron) {
+        onCreated(createdItem, neutron, true);
+    }
+
+    public void onCreated(Port port, Neutron neutron, boolean addBaseEpMapping) {
         LOG.trace("created port - {}", port);
         if (PortUtils.isRouterInterfacePort(port)) {
             LOG.trace("Port is router interface port: {}", port.getUuid().getValue());
@@ -112,6 +131,39 @@ public class NeutronPortAware implements NeutronAware<Port> {
             }
             FixedIps portIpWithSubnet = potentialPortIpWithSubnet.get();
             ContextId routerL3Context = new ContextId(port.getDeviceId());
+            ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
+            AddressEndpointKey addrEpKey = new AddressEndpointKey(port.getMacAddress().getValue(),
+                MacAddressType.class, new ContextId(port.getNetworkId().getValue()), MappingUtils.L2_BRDIGE_DOMAIN);
+            UniqueId portId = new UniqueId(port.getUuid().getValue());
+            addBaseEndpointMappings(addrEpKey, portId, rwTx);
+            // Add Qrouter and VPProuter port as Endpoint
+            if (port.getAugmentation(PortBindingExtension.class) != null &&
+                PortUtils.DEVICE_VIF_TYPE.equals(port.getAugmentation(PortBindingExtension.class).getVifType())) {
+                LOG.trace("Port is QRouter port: {}", port.getUuid().getValue());
+                Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
+                if (!firstFixedIps.isPresent()) {
+                    LOG.warn("QRouter port does not have an IP address. {}", port);
+                    return;
+                }
+                FixedIps ipWithSubnet = firstFixedIps.get();
+                NetworkDomainId networkContainment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
+                List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
+                epgsFromSecGroups.add(NetworkService.EPG_ID);
+                // BUILD BASE ENDPOINT
+                AddressEndpointRegBuilder l2BaseEp = createBasicMacAddrEpInputBuilder(port, networkContainment,
+                    epgsFromSecGroups);
+                AddressEndpointRegBuilder l3BaseEp = createBasicL3AddrEpInputBuilder(port, networkContainment,
+                    epgsFromSecGroups, neutron);
+                setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
+                // BUILD ENDPOINT
+                org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder
+                    epInBuilder =
+                    createEndpointRegFromPort(
+                        port, ipWithSubnet, networkContainment, epgsFromSecGroups, neutron);
+                registerBaseEndpointAndStoreMapping(
+                    ImmutableList.of(l2BaseEp.build(), l3BaseEp.build()), port, rwTx, addBaseEpMapping);
+                registerEndpointAndStoreMapping(epInBuilder.build(), port, rwTx);
+            }
             // change L3Context for all EPs with same subnet as router port
             changeL3ContextForEpsInSubnet(portIpWithSubnet.getSubnetId(), neutron);
             // set L3Context as parent for bridge domain which is parent of subnet
@@ -123,7 +175,6 @@ public class NeutronPortAware implements NeutronAware<Port> {
                 return;
             }
             Subnet routerPortSubnet = potentialRouterPortSubnet.get();
-            ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
             ContextId l2BdId = new ContextId(routerPortSubnet.getNetworkId().getValue());
             ForwardingContext l2Bd = new ForwardingContextBuilder().setContextId(l2BdId)
                 .setContextType(MappingUtils.L2_BRDIGE_DOMAIN)
@@ -131,8 +182,7 @@ public class NeutronPortAware implements NeutronAware<Port> {
                 .build();
             rwTx.merge(LogicalDatastoreType.CONFIGURATION, L2L3IidFactory.l2BridgeDomainIid(tenantId, l2BdId), l2Bd, true);
             // set virtual router IP for subnet
-            NetworkDomain subnetDomain = NeutronSubnetAware.createSubnet(
-                    routerPortSubnet, portIpWithSubnet.getIpAddress());
+            NetworkDomain subnetDomain = NeutronSubnetAware.createSubnet(routerPortSubnet, neutron, null);
             rwTx.merge(LogicalDatastoreType.CONFIGURATION, L2L3IidFactory.subnetIid(tenantId, subnetDomain.getNetworkDomainId()), subnetDomain);
 
             // does the same for tenant forwarding domains
@@ -151,21 +201,18 @@ public class NeutronPortAware implements NeutronAware<Port> {
             NetworkDomainId networkContainment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
             List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
             epgsFromSecGroups.add(NetworkService.EPG_ID);
-
-            // BUILD BASE ENDPOINT
             AddressEndpointRegBuilder l2BaseEp = createBasicMacAddrEpInputBuilder(port, networkContainment,
-                    epgsFromSecGroups);
+                    Collections.emptyList());
             AddressEndpointRegBuilder l3BaseEp = createBasicL3AddrEpInputBuilder(port, networkContainment,
                     epgsFromSecGroups, neutron);
-            setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 
-            // BUILD ENDPOINT
+            setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder = createEndpointRegFromPort(
                     port, ipWithSubnet, networkContainment, epgsFromSecGroups, neutron);
-
             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
             registerBaseEndpointAndStoreMapping(
-                    ImmutableList.of(l2BaseEp.build(), l3BaseEp.build()), port, rwTx);
+                    ImmutableList.of(l3BaseEp.build(), l2BaseEp.build()), port, rwTx, addBaseEpMapping);
+            registerMetadataServiceForDhcpPort(port, neutron, l2BaseEp, rwTx, true);
             registerEndpointAndStoreMapping(epInBuilder.build(), port, rwTx);
             DataStoreHelper.submitToDs(rwTx);
         } else if (PortUtils.isNormalPort(port)) {
@@ -196,7 +243,7 @@ public class NeutronPortAware implements NeutronAware<Port> {
                 baseEpRegs.add(l3BaseEp.build());
             }
             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
-            registerBaseEndpointAndStoreMapping(baseEpRegs, port, rwTx);
+            registerBaseEndpointAndStoreMapping(baseEpRegs, port, rwTx, addBaseEpMapping);
             registerEndpointAndStoreMapping(epInBuilder.build(), port, rwTx);
             DataStoreHelper.submitToDs(rwTx);
         } else if (PortUtils.isRouterGatewayPort(port)) {
@@ -210,6 +257,39 @@ public class NeutronPortAware implements NeutronAware<Port> {
         }
     }
 
+    private Port cloneMetadataPortFromDhcpPort(Port port, IpPrefix metadataPrefix) {
+        IpAddress metadataIp = MappingUtils.ipPrefixToIpAddress(metadataPrefix);
+        List<FixedIps> metadataIps = port.getFixedIps().stream().map(fi -> {
+            FixedIpsKey key = new FixedIpsKey(metadataIp, fi.getKey().getSubnetId());
+            return new FixedIpsBuilder(fi).setKey(key).setIpAddress(metadataIp).build();
+        }).collect(Collectors.toList());
+        return new PortBuilder(port).setFixedIps(metadataIps).build();
+    }
+
+    private void registerMetadataServiceForDhcpPort(Port port, Neutron neutron, AddressEndpointRegBuilder childEpToAdd,
+            ReadWriteTransaction rwTx, boolean registerMapping) {
+        Optional<NetworkDomainId> resolveNetworkContainment = PortUtils.resolveNetworkContainment(port);
+        if (!resolveNetworkContainment.isPresent()) {
+            LOG.warn("DHCP port does not have an IP address. {}", port);
+            return;
+        }
+        AddressEndpointRegBuilder metadataEp =
+                createBasicL3AddrEpInputBuilder(cloneMetadataPortFromDhcpPort(port, metadataIpPrefix),
+                        resolveNetworkContainment.get(), Lists.newArrayList(MetadataService.EPG_ID), neutron);
+        AddressEndpointKey aek = new AddressEndpointKey(metadataEp.getAddress(), metadataEp.getAddressType(),
+                metadataEp.getContextId(), metadataEp.getContextType());
+        Optional<AddressEndpoint> optMetadataEp =
+                DataStoreHelper.readFromDs(LogicalDatastoreType.OPERATIONAL, IidFactory.addressEndpointIid(aek), rwTx);
+        if (!optMetadataEp.isPresent()) {
+            setParentChildRelationshipForEndpoints(metadataEp, childEpToAdd);
+        } else {
+            List<ChildEndpoint> childs = optMetadataEp.get().getChildEndpoint();
+            childs.add(createChildEndpoint(childEpToAdd));
+            metadataEp.setChildEndpoint(childs);
+        }
+        registerBaseEndpointAndStoreMapping(ImmutableList.of(metadataEp.build()), port, rwTx, registerMapping);
+    }
+
     private void setParentChildRelationshipForEndpoints(AddressEndpointRegBuilder parentEp,
             AddressEndpointRegBuilder childEp) {
         childEp.setParentEndpointChoice(new ParentEndpointCaseBuilder().setParentEndpoint(
@@ -248,16 +328,37 @@ public class NeutronPortAware implements NeutronAware<Port> {
     }
 
     private void changeL3ContextForEpsInSubnet(Uuid subnetUuid, Neutron neutron) {
+        if (neutron == null) {
+            LOG.debug("No new data are written, there is no L3 context in subnet {} to update", subnetUuid);
+            return;
+        }
+        java.util.Optional<Subnet> optSubnet = neutron.getSubnets()
+            .getSubnet()
+            .stream()
+            .filter(subnet -> subnet.getNetworkId() != null && subnet.getUuid().getValue().equals(subnetUuid.getValue()))
+            .findAny();
+        if (!optSubnet.isPresent()) {
+            LOG.error("Failed to update metadata endpoint in subnet {}. Could not resolve Network ID", subnetUuid);
+        } else {
+            AddressEndpointUnreg metadataEpUnreg =
+                    new AddressEndpointUnregBuilder().setAddress(String.valueOf(metadataIpPrefix.getValue()))
+                        .setAddressType(IpPrefixType.class)
+                        .setContextId(new ContextId(optSubnet.get().getNetworkId().getValue()))
+                        .setContextType(MappingUtils.L3_CONTEXT)
+                        .build();
+            epRegistrator.unregisterEndpoint(metadataEpUnreg);
+        }
         Set<Port> portsInSameSubnet = PortUtils.findPortsBySubnet(subnetUuid, neutron.getPorts());
         for (Port portInSameSubnet : portsInSameSubnet) {
-            if (PortUtils.isNormalPort(portInSameSubnet) || PortUtils.isDhcpPort(portInSameSubnet)) {
+            if (PortUtils.isNormalPort(portInSameSubnet) || PortUtils.isDhcpPort(portInSameSubnet)
+                || PortUtils.isQrouterOrVppRouterPort(portInSameSubnet)) {
                 // endpoints are created only from neutron normal port or DHCP port
                 Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(portInSameSubnet);
                 if (firstFixedIps.isPresent()) {
                     // endpoint has only one network containment therefore only first IP is used
                     FixedIps ipWithSubnet = firstFixedIps.get();
                     List<EndpointGroupId> endpointGroupIds = new ArrayList<>();
-                    if (PortUtils.isDhcpPort(portInSameSubnet)) {
+                    if (PortUtils.isDhcpPort(portInSameSubnet) || PortUtils.isQrouterOrVppRouterPort(portInSameSubnet)) {
                         endpointGroupIds.add(NetworkService.EPG_ID);
                     } else if (PortUtils.isNormalPort(portInSameSubnet)) {
                         endpointGroupIds.add(NetworkClient.EPG_ID);
@@ -274,8 +375,18 @@ public class NeutronPortAware implements NeutronAware<Port> {
                         .setContextType(l3BaseEp.getContextType())
                         .build();
                     epRegistrator.unregisterEndpoint(addrEpUnreg);
-                    epRegistrator.registerEndpoint(l3BaseEp.build());
-
+                    RegisterEndpointInput regBaseEpInput = new RegisterEndpointInputBuilder()
+                        .setAddressEndpointReg(ImmutableList.of(l2BaseEp.build(), l3BaseEp.build())).build();
+                    epRegistrator.registerEndpoint(regBaseEpInput);
+                    if(PortUtils.isDhcpPort(portInSameSubnet)) {
+                        ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
+                        registerMetadataServiceForDhcpPort(portInSameSubnet, neutron, l2BaseEp, rwTx, false);
+                        try {
+                            rwTx.submit().get();
+                        } catch (InterruptedException | ExecutionException e) {
+                            LOG.error("Failed to update metadata endpoint for DHCP port {}. {}", portInSameSubnet, e);
+                        }
+                    }
                     modifyL3ContextForEndpoints(portInSameSubnet, ipWithSubnet, l3BaseEp.getContextId());
                 }
             }
@@ -407,7 +518,7 @@ public class NeutronPortAware implements NeutronAware<Port> {
             Port port, ReadWriteTransaction rwTx) {
         boolean isRegisteredEndpoint = epRegistrator.registerEndpoint(regEpInput);
         if (!isRegisteredEndpoint) {
-            LOG.error("Failed to register an endpoint: {}", regEpInput);
+            LOG.error("Failed to register endpoint: {}", regEpInput);
             return;
         }
         UniqueId portId = new UniqueId(port.getUuid().getValue());
@@ -442,60 +553,71 @@ public class NeutronPortAware implements NeutronAware<Port> {
     }
 
     private void registerBaseEndpointAndStoreMapping(List<AddressEndpointReg> addrEpRegs, Port port,
-            ReadWriteTransaction rwTx) {
+            WriteTransaction wTx, boolean addBaseEpMappings) {
         RegisterEndpointInput regBaseEpInput = new RegisterEndpointInputBuilder().setAddressEndpointReg(addrEpRegs)
             .build();
 
         boolean isRegisteredBaseEndpoint = epRegistrator.registerEndpoint(regBaseEpInput);
         if (!isRegisteredBaseEndpoint) {
-            LOG.error("Failed to register an address endpoint: {}", addrEpRegs);
+            LOG.error("Failed to register address endpoint: {}", addrEpRegs);
             return;
         }
         for (AddressEndpointReg addrEpReg : addrEpRegs) {
-            if (MappingUtils.L2_BRDIGE_DOMAIN.equals(addrEpReg.getContextType())) {
+            if (MappingUtils.L2_BRDIGE_DOMAIN.equals(addrEpReg.getContextType()) && addBaseEpMappings) {
                 UniqueId portId = new UniqueId(port.getUuid().getValue());
                 LOG.trace("Adding Port-BaseEndpoint mapping for port {} (device owner {}) and endpoint {}",
                         port.getUuid());
                 AddressEndpointKey addrEpKey = new AddressEndpointKey(addrEpReg.getAddress(),
                         addrEpReg.getAddressType(), addrEpReg.getContextId(), addrEpReg.getContextType());
-                BaseEndpointByPort baseEndpointByPort = MappingFactory.createBaseEndpointByPort(addrEpKey, portId);
-                rwTx.put(LogicalDatastoreType.OPERATIONAL, NeutronGbpIidFactory.baseEndpointByPortIid(portId),
-                        baseEndpointByPort, true);
-                PortByBaseEndpoint portByBaseEndpoint = MappingFactory.createPortByBaseEndpoint(portId, addrEpKey);
-                rwTx.put(LogicalDatastoreType.OPERATIONAL,
-                        NeutronGbpIidFactory.portByBaseEndpointIid(new PortByBaseEndpointKey(
-                                portByBaseEndpoint.getKey())), portByBaseEndpoint, true);
+                addBaseEndpointMappings(addrEpKey, portId, wTx);
             }
         }
     }
 
+    private void addBaseEndpointMappings(AddressEndpointKey addrEpKey, UniqueId portId, WriteTransaction wTx) {
+        BaseEndpointByPort baseEndpointByPort = MappingFactory.createBaseEndpointByPort(addrEpKey, portId);
+        wTx.put(LogicalDatastoreType.OPERATIONAL, NeutronGbpIidFactory.baseEndpointByPortIid(portId),
+                baseEndpointByPort, true);
+        PortByBaseEndpoint portByBaseEndpoint = MappingFactory.createPortByBaseEndpoint(portId, addrEpKey);
+        wTx.put(LogicalDatastoreType.OPERATIONAL,
+                NeutronGbpIidFactory.portByBaseEndpointIid(new PortByBaseEndpointKey(
+                        portByBaseEndpoint.getKey())), portByBaseEndpoint, true);
+    }
+
     private void unregisterEndpointAndRemoveMapping(UnregisterEndpointInput baseEpUnreg, Port port,
-            ReadWriteTransaction rwTx) {
+            ReadWriteTransaction rwTx, boolean removeBaseEpMappings) {
         boolean isUnregisteredBaseEndpoint = epRegistrator.unregisterEndpoint(baseEpUnreg);
         if (isUnregisteredBaseEndpoint) {
             UniqueId portId = new UniqueId(port.getUuid().getValue());
-            EndpointKey epKey = new EndpointKey(new L2BridgeDomainId(port.getNetworkId().getValue()), new MacAddress(
-                    port.getMacAddress().getValue()));
-            LOG.trace("Removing Port-BaseEndpoint mapping for port {} (device owner {}) and endpoint {}",
-                    port.getUuid().getValue(), port.getDeviceOwner(), epKey);
             PortByBaseEndpointKey portByBaseEndpointKey = new PortByBaseEndpointKey(port.getMacAddress().getValue(),
                     MacAddressType.class, new ContextId(port.getNetworkId().getValue()), MappingUtils.L2_BRDIGE_DOMAIN);
-            DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
-                    NeutronGbpIidFactory.baseEndpointByPortIid(portId), rwTx);
-            DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
-                    NeutronGbpIidFactory.portByBaseEndpointIid(portByBaseEndpointKey), rwTx);
+            LOG.trace("Removing Port-BaseEndpoint mapping for port {} (device owner {}) and endpoint {}",
+                    port.getUuid().getValue(), port.getDeviceOwner(), portByBaseEndpointKey);
+            if (removeBaseEpMappings) {
+                removeBaseEndpointMappings(portByBaseEndpointKey, portId, rwTx);
+            }
         }
     }
 
+    private void removeBaseEndpointMappings(PortByBaseEndpointKey portByBaseEndpointKey, UniqueId portId, ReadWriteTransaction rwTx) {
+        DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
+                NeutronGbpIidFactory.baseEndpointByPortIid(portId), rwTx);
+        DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
+                NeutronGbpIidFactory.portByBaseEndpointIid(portByBaseEndpointKey), rwTx);
+    }
+
     @Override
     public void onUpdated(Port oldPort, Port newPort, Neutron oldNeutron, Neutron newNeutron) {
         LOG.trace("updated port - OLD: {}\nNEW: {}", oldPort, newPort);
-        onDeleted(oldPort, oldNeutron, newNeutron);
-        onCreated(newPort, newNeutron);
+        onDeleted(oldPort, oldNeutron, newNeutron, false);
+        onCreated(newPort, newNeutron, false);
     }
 
-    @Override
-    public void onDeleted(Port port, Neutron oldNeutron, Neutron newNeutron) {
+    @Override public void onDeleted(Port deletedItem, Neutron oldNeutron, Neutron newNeutron) {
+        onDeleted(deletedItem, oldNeutron, newNeutron, true);
+    }
+
+    public void onDeleted(Port port, Neutron oldNeutron, Neutron newNeutron, boolean removeBaseEpMapping) {
         LOG.trace("deleted port - {}", port);
         if (PortUtils.isRouterInterfacePort(port)) {
             LOG.trace("Port is router interface port: {}", port.getUuid().getValue());
@@ -508,8 +630,8 @@ public class NeutronPortAware implements NeutronAware<Port> {
             }
             FixedIps portIpWithSubnet = potentialPortIpWithSubnet.get();
             L3ContextId l3Context = new L3ContextId(port.getNetworkId().getValue());
-            // change L3Context for all EPs with same subnet as router port
-            changeL3ContextForEpsInSubnet(portIpWithSubnet.getSubnetId(), oldNeutron);
+            // change L3Context for all new EPs with same subnet as router port
+            changeL3ContextForEpsInSubnet(portIpWithSubnet.getSubnetId(), newNeutron);
             // set L3Context as parent for bridge domain which is parent of subnet
             TenantId tenantId = new TenantId(port.getTenantId().getValue());
             Optional<Subnet> potentialRouterPortSubnet = SubnetUtils.findSubnet(portIpWithSubnet.getSubnetId(),
@@ -528,21 +650,23 @@ public class NeutronPortAware implements NeutronAware<Port> {
                 .build();
             rwTx.merge(LogicalDatastoreType.CONFIGURATION,
                     L2L3IidFactory.l2BridgeDomainIid(tenantId, fwdCtx.getContextId()), fwdCtx);
-            NetworkDomain subnet = NeutronSubnetAware.createSubnet(routerPortSubnet, null);
+            NetworkDomain subnet = NeutronSubnetAware.createSubnet(routerPortSubnet, newNeutron, null);
             rwTx.put(LogicalDatastoreType.CONFIGURATION, L2L3IidFactory.subnetIid(tenantId, subnet.getNetworkDomainId()),
                     subnet);
+            unregisterEndpointAndRemoveMapping(createUnregisterEndpointInput(port, oldNeutron), port, rwTx);
+            unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx, removeBaseEpMapping);
             DataStoreHelper.submitToDs(rwTx);
         } else if (PortUtils.isDhcpPort(port)) {
             LOG.trace("Port is DHCP port: {}", port.getUuid().getValue());
             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
             unregisterEndpointAndRemoveMapping(createUnregisterEndpointInput(port, oldNeutron), port, rwTx);
-            unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx);
+            unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx, removeBaseEpMapping);
             DataStoreHelper.submitToDs(rwTx);
         } else if (PortUtils.isNormalPort(port)) {
             LOG.trace("Port is normal port: {}", port.getUuid().getValue());
             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
             unregisterEndpointAndRemoveMapping(createUnregisterEndpointInput(port, oldNeutron), port, rwTx);
-            unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx);
+            unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx, removeBaseEpMapping);
             DataStoreHelper.submitToDs(rwTx);
         } else if (PortUtils.isRouterGatewayPort(port)) {
             // do nothing because actual trigger is detaching of port from router