Global commands

config
    - router
        - [no] isis [isis-instance]
            - [no] advertise-passive-only
            - advertise-router-capability {area | as}
            - no advertise-router-capability
            - all-l1isis ieee-address
            - all-l2isis ieee-address
            - [no] area-id area-address
            - [no] authentication-check
            - authentication-key [authentication-key | hash-key] [hash | hash2]
            - no authentication-key
            - authentication-type {password | message-digest}
            - no authentication-type
            - [no] csnp-authentication
            - [no] default-route-tag tag
            - [no] disable-ldp-sync 
            - export policy-name [.. policy-name... up to 5 max)]
            - no export
            - export-limit number [log percentage]
            - no export-limit 
            - [no] graceful-restart
                - [no] helper-disable
            - [no] hello-authentication
            - [no] iid-tlv-enable
            - segment-routing
            - no segment-routing
                - prefix-sid-range {global | start-label label-value max-index index-value}
                - no prefix-sid-range
                - tunnel-mtu bytes
                - no tunnel-mtu
                - tunnel-table-pref preference 
                - no tunnel-table-pref
                - [no] shutdown