case SESSION_STATE_ALLOC:

        return "Session Allocated";

    case SESSION_STATE_DUMMY:

        return "Dummy Session";

    case SESSION_STATE_READY:

        return "Session Ready";

    case SESSION_STATE_ROUTER_READY:

        return "Session ready for routing";

    case SESSION_STATE_LISTENER:

        return "Listener Session";

    case SESSION_STATE_LISTENER_STOPPED:

        return "Stopped Listener Session";

#ifdef SS_DEBUG

    case SESSION_STATE_STOPPING:

        return "Stopping session";

    case SESSION_STATE_TO_BE_FREED:

        return "Session to be freed";

    case SESSION_STATE_FREE:

        return "Freed session";

#endif

    default:

        return "Invalid State";