This value indicates whether or not the Backward Transition trap is used. This field can be changed at any time. However, if the field is changed while the peer is admin_status UP, the change will only take effect after the peer has been cycled admin_status DOWN and then UP, thus forcing the peer session to be restarted. In this case, until the peer is set admin_status DOWN, the peer will be marked as out of date (as reported by the config_state field in the AMB_BGP_PEER_STATUS row for the peer).