[edit chassis] Hierarchy Level

chassis {

    aggregated-devices {

        ethernet {

            device-count number;

        }

         sonet {

            device-count number;

        } 

    }

    alarm {

        interface-type {

            alarm-name (red | yellow | ignore);

        }

    }

    fpc slot-number {

        pic pic-number {

            atm-cell-relay-accumulation;

    atm-l2circuit-mode(cell | aal5);

    vtmapping number;

    ce1 {

        e1 port-number {

            channel-group group-number timeslots slot-number;

        } 

    } 

    ct3 {

        port port-number {

            t1 link-number {

                 channel-group group-number timeslots slot-number;

            } 

        } 

    }         

            framing (sdh | sonet);

            idle-cell-format {

                itu-t;

                payload-pattern payload-pattern-byte;

            }

    mlfr-uni-nni-bundles number;

            sparse-dlcis;

            no-concatenate;

            vtmapping (km | itu-t);

        }

    }

    graceful-switchover (disable | enable);

    (packet-scheduling | no-packet-scheduling);

    vrf-mtu-check;

    (source-route | no-source-route);

    redundancy {

        failover on-loss-of-keepalives;

        keepalive-time seconds;

        routing-engine slot-number (master | backup | disabled);

        sfm slot-number (always | preferred);

        ssb slot-number (always | preferred);

    }

} # End of [edit chassis] hierarchy level