[edit chassis] Hierarchy Level

 chassis {
     aggregate-devices {
         ethernet {
             device-count number;
         }
     }
     alarm {
         interface-type {
             alarm-name (red | yellow | ignore);
         }
     }
     fpc slot-number {
         pic pic-number {
             framing (sdh | sonet);
             no-concatenate;
         }
     }
     (source-route | no-source-route);
     redundancy {
         failover on-loss-of-keepalives;
         keepalive-time seconds;
         routing-engine slot-number (master | backup | disabled);
         ssb slot-number (always | preferred);
     }
 } #End of [edit chassis] hierarchy level