--- /dev/null
+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.protocol.framework;
+
+import java.io.Closeable;
+
+/**
+ * Protocol Session represents the finite state machine in underlying protocol, including timers and its purpose is to
+ * create a connection between server and client. Session is automatically started, when TCP connection is created, but
+ * can be stopped manually. If the session is up, it has to redirect messages to/from user. Handles also malformed
+ * messages and unknown requests.
+ *
+ * This interface should be implemented by a final class representing a protocol specific session.
+ */
+public interface ProtocolSession<T> extends Closeable {
+ @Override
+ void close();
+}