diff --git a/core/api/src/main/java/org/onosproject/net/config/NetworkConfigService.java b/core/api/src/main/java/org/onosproject/net/config/NetworkConfigService.java
new file mode 100644
index 0000000..465751b
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/config/NetworkConfigService.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.net.config;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.annotations.Beta;
+import org.onosproject.event.ListenerService;
+
+import java.util.Set;
+
+/**
+ * Service for tracking network configurations which specify how the discovered
+ * network information should be interpreted and how the core or applications
+ * should act on or configure the network.
+ */
+@Beta
+public interface NetworkConfigService
+        extends ListenerService<NetworkConfigEvent, NetworkConfigListener> {
+
+    /**
+     * Returns the set of subject classes for which configuration may be
+     * available.
+     *
+     * @return set of subject classes
+     */
+    Set<Class> getSubjectClasses();
+
+    /**
+     * Returns the subject factory with the specified key.
+     *
+     * @param subjectKey subject class key
+     * @return subject class
+     */
+    SubjectFactory getSubjectFactory(String subjectKey);
+
+    /**
+     * Returns the subject factory for the specified class.
+     *
+     * @param subjectClass subject class
+     * @return subject class key
+     */
+    SubjectFactory getSubjectFactory(Class subjectClass);
+
+    /**
+     * Returns the configuration class with the specified key.
+     *
+     * @param subjectKey subject class key
+     * @param configKey  subject class name
+     * @return subject class
+     */
+    Class<? extends Config> getConfigClass(String subjectKey, String configKey);
+
+    /**
+     * Returns the set of subjects for which some configuration is available.
+     *
+     * @param subjectClass subject class
+     * @param <S>          type of subject
+     * @return set of configured subjects
+     */
+    <S> Set<S> getSubjects(Class<S> subjectClass);
+
+    /**
+     * Returns the set of subjects for which the specified configuration is
+     * available.
+     *
+     * @param subjectClass subject class
+     * @param configClass  configuration class
+     * @param <S>          type of subject
+     * @param <C>          type of configuration
+     * @return set of configured subjects
+     */
+    <S, C extends Config<S>> Set<S> getSubjects(Class<S> subjectClass, Class<C> configClass);
+
+    /**
+     * Returns all configurations for the specified subject.
+     *
+     * @param subject configuration subject
+     * @param <S>     type of subject
+     * @return set of configurations
+     */
+    <S> Set<? extends Config<S>> getConfigs(S subject);
+
+    /**
+     * Returns the configuration for the specified subject and configuration
+     * class if one is available; null otherwise.
+     *
+     * @param subject     configuration subject
+     * @param configClass configuration class
+     * @param <S>         type of subject
+     * @param <C>         type of configuration
+     * @return configuration or null if one is not available
+     */
+    <S, C extends Config<S>> C getConfig(S subject, Class<C> configClass);
+
+    /**
+     * Creates a new configuration for the specified subject and configuration
+     * class. If one already exists, it is simply returned.
+     *
+     * @param subject     configuration subject
+     * @param configClass configuration class
+     * @param <S>         type of subject
+     * @param <C>         type of configuration
+     * @return configuration or null if one is not available
+     */
+    <S, C extends Config<S>> C addConfig(S subject, Class<C> configClass);
+
+    /**
+     * Applies configuration for the specified subject and configuration
+     * class using the raw JSON object. If configuration already exists, it
+     * will be updated.
+     *
+     * @param subject     configuration subject
+     * @param configClass configuration class
+     * @param json        raw JSON node containing the configuration data
+     * @param <S>         type of subject
+     * @param <C>         type of configuration
+     * @return configuration or null if one is not available
+     */
+    <S, C extends Config<S>> C applyConfig(S subject, Class<C> configClass,
+                                           ObjectNode json);
+
+    /**
+     * Clears any configuration for the specified subject and configuration
+     * class. If one does not exist, this call has no effect.
+     *
+     * @param subject     configuration subject
+     * @param configClass configuration class
+     * @param <S>         type of subject
+     * @param <C>         type of configuration
+     */
+    <S, C extends Config<S>> void removeConfig(S subject, Class<C> configClass);
+
+}