clib_memset (&elt->evt, 0, sizeof (session_event_t));
elt->evt.session_handle = session_handle (s);
elt->evt.event_type = SESSION_CTRL_EVT_CLOSE;
clib_memset (&elt->evt, 0, sizeof (session_event_t));
elt->evt.session_handle = session_handle (s);
elt->evt.event_type = SESSION_CTRL_EVT_CLOSE;