diff --git a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/web/OpenstackSubnetWebResource.java b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/web/OpenstackSubnetWebResource.java
index ca9f3ab..1897a3b 100644
--- a/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/web/OpenstackSubnetWebResource.java
+++ b/apps/openstacknetworking/src/main/java/org/onosproject/openstacknetworking/web/OpenstackSubnetWebResource.java
@@ -18,7 +18,13 @@
 /**
  * Handles Rest API call from Neutron ML2 plugin.
  */
+
+import com.fasterxml.jackson.databind.JsonNode;
+import org.onlab.osgi.DefaultServiceDirectory;
+import org.onosproject.openstacknetworking.api.OpenstackNetworkAdminService;
 import org.onosproject.rest.AbstractWebResource;
+import org.openstack4j.core.transport.ObjectMapperSingleton;
+import org.openstack4j.openstack.networking.domain.NeutronSubnet;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -29,36 +35,101 @@
 import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;
+import javax.ws.rs.core.Context;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
+import javax.ws.rs.core.UriBuilder;
+import javax.ws.rs.core.UriInfo;
 import java.io.InputStream;
 
+import static com.fasterxml.jackson.databind.SerializationFeature.INDENT_OUTPUT;
+import static javax.ws.rs.core.Response.created;
+import static javax.ws.rs.core.Response.noContent;
+import static javax.ws.rs.core.Response.status;
+
 @Path("subnets")
 public class OpenstackSubnetWebResource extends AbstractWebResource {
-    protected static final Logger log = LoggerFactory
-            .getLogger(OpenstackSubnetWebResource.class);
+    protected final Logger log = LoggerFactory.getLogger(getClass());
 
+    private static final String MESSAGE = "Received subnets %s request";
+    private static final String SUBNETS = "subnets";
+
+    private final OpenstackNetworkAdminService adminService =
+            DefaultServiceDirectory.getService(OpenstackNetworkAdminService.class);
+
+    @Context
+    private UriInfo uriInfo;
+
+    /**
+     * Creates a subnet from the JSON input stream.
+     *
+     * @param input subnet JSON input stream
+     * @return 201 CREATED if the JSON is correct, 400 BAD_REQUEST if the JSON
+     * is invalid or duplicated subnet already exists
+     */
     @POST
     @Consumes(MediaType.APPLICATION_JSON)
     @Produces(MediaType.APPLICATION_JSON)
     public Response createSubnet(InputStream input) {
-        return Response.status(Response.Status.OK).build();
+        log.trace(String.format(MESSAGE, "CREATE"));
+
+        final NeutronSubnet subnet = readSubnet(input);
+        adminService.createSubnet(subnet);
+        UriBuilder locationBuilder = uriInfo.getBaseUriBuilder()
+                .path(SUBNETS)
+                .path(subnet.getId());
+
+        // TODO fix networking-onos to send Network UPDATE when subnet created
+        return created(locationBuilder.build()).build();
     }
 
-
+    /**
+     * Updates the subnet with the specified identifier.
+     *
+     * @param id    subnet identifier
+     * @param input subnet JSON input stream
+     * @return 200 OK with the updated subnet, 400 BAD_REQUEST if the requested
+     * subnet does not exist
+     */
     @PUT
-    @Path("{subnetId}")
+    @Path("{id}")
     @Produces(MediaType.APPLICATION_JSON)
     @Consumes(MediaType.APPLICATION_JSON)
-    public Response updateSubnet(@PathParam("subnetId") String id,
-                                 final InputStream input) {
-        return Response.status(Response.Status.OK).build();
+    public Response updateSubnet(@PathParam("id") String id, InputStream input) {
+        log.trace(String.format(MESSAGE, "UPDATE " + id));
+
+        final NeutronSubnet subnet = readSubnet(input);
+        adminService.updateSubnet(subnet);
+
+        return status(Response.Status.OK).build();
     }
 
+    /**
+     * Removes the subnet.
+     *
+     * @param id subnet identifier
+     * @return 204 NO_CONTENT, 400 BAD_REQUEST if the subnet does not exist
+     */
     @DELETE
-    @Path("{subnetId}")
+    @Path("{id}")
+    @Consumes(MediaType.APPLICATION_JSON)
     @Produces(MediaType.APPLICATION_JSON)
-    public Response deleteSubnet(@PathParam("subnetId") String id) {
-        return Response.noContent().build();
+    public Response deleteSubnet(@PathParam("id") String id) {
+        log.trace(String.format(MESSAGE, "DELETE " + id));
+
+        adminService.removeSubnet(id);
+        return noContent().build();
+    }
+
+    private NeutronSubnet readSubnet(InputStream input) {
+        try {
+            JsonNode jsonTree = mapper().enable(INDENT_OUTPUT).readTree(input);
+            log.trace(mapper().writeValueAsString(jsonTree));
+            return ObjectMapperSingleton.getContext(NeutronSubnet.class)
+                    .readerFor(NeutronSubnet.class)
+                    .readValue(jsonTree);
+        } catch (Exception e) {
+            throw new IllegalArgumentException();
+        }
     }
 }