diff --git a/core/api/src/main/java/org/onosproject/cluster/ClusterAdminService.java b/core/api/src/main/java/org/onosproject/cluster/ClusterAdminService.java
index 625183a..e680877 100644
--- a/core/api/src/main/java/org/onosproject/cluster/ClusterAdminService.java
+++ b/core/api/src/main/java/org/onosproject/cluster/ClusterAdminService.java
@@ -15,56 +15,14 @@
  */
 package org.onosproject.cluster;
 
-import org.onlab.packet.IpAddress;
-
-import java.util.Set;
-
 /**
  * Service for administering the cluster node membership.
+ * <p>
+ * This service has a view of the cluster membership that is isolated to the local node's version during upgrades.
+ * For an equivalent service that has control over all nodes during an upgrade use
+ * {@link UnifiedClusterAdminService}.
+ *
+ * @see UnifiedClusterAdminService
  */
-public interface ClusterAdminService extends ClusterService {
-
-    /**
-     * Forms cluster configuration based on the specified set of node
-     * information.&nbsp; This method resets and restarts the controller
-     * instance.
-     *
-     * @param nodes    set of nodes that form the cluster
-     */
-    void formCluster(Set<ControllerNode> nodes);
-
-    /**
-     * Forms cluster configuration based on the specified set of node
-     * information.&nbsp; This method resets and restarts the controller
-     * instance.
-     *
-     * @param nodes    set of nodes that form the cluster
-     * @param partitionSize number of nodes to compose a partition
-     */
-    void formCluster(Set<ControllerNode> nodes, int partitionSize);
-
-    /**
-     * Adds a new controller node to the cluster.
-     *
-     * @param nodeId  controller node identifier
-     * @param ip      node IP listen address
-     * @param tcpPort tcp listen port
-     * @return newly added node
-     */
-    ControllerNode addNode(NodeId nodeId, IpAddress ip, int tcpPort);
-
-    /**
-     * Removes the specified node from the cluster node list.
-     *
-     * @param nodeId controller node identifier
-     */
-    void removeNode(NodeId nodeId);
-
-    /**
-     * Marks the current node as fully started or not.
-     *
-     * @param started true indicates all components have been started
-     */
-    void markFullyStarted(boolean started);
-
+public interface ClusterAdminService extends MembershipAdminService {
 }