module: ietf-ntp
  +--rw ntp!
     +--rw port?                    inet:port-number {ntp-port}?
     +--rw refclock-master!
     |  +--rw master-stratum?   ntp-stratum
     +--rw authentication {authentication}?
     |  +--rw auth-enabled?          boolean
     |  +--rw authentication-keys* [keyid]
     |     +--rw keyid       uint32
     |     +--rw algorithm?   identityref
     |     +--rw key
     |     |  +--rw (key-string-style)?
     |     |     +--:(keystring)
     |     |     |  +--rw keystring?            string {deprecated}?
     |     |     +--:(hexadecimal) {hex-key-string}?
     |     |        +--rw hexadecimal-string?   yang:hex-string
     |     +--rw istrusted?   boolean
     +--rw access-rules {access-rules}?
     |  +--rw access-rule* [access-mode]
     |     +--rw access-mode    identityref
     |     +--rw acl?           -> /acl:acls/acl/name
     +--ro clock-state
     |  +--ro system-status
     |     +--ro clock-state                  identityref
     |     +--ro clock-stratum                ntp-stratum
     |     +--ro clock-refid                  refid
     |     +--ro associations-address?
     |     |       -> /ntp/associations/association/address
     |     +--ro associations-local-mode?
     |     |       -> /ntp/associations/association/local-mode
     |     +--ro associations-isconfigured?
     |     |       -> /ntp/associations/association/isconfigured
     |     +--ro nominal-freq                 decimal64
     |     +--ro actual-freq                  decimal64
     |     +--ro clock-precision              log2seconds
     |     +--ro clock-offset?                decimal64
     |     +--ro root-delay?                  decimal64
     |     +--ro root-dispersion?             decimal64
     |     +--ro reference-time?              ntp-date-and-time
     |     +--ro sync-state                   identityref
     +--rw unicast-configuration* [address type]
     |       {unicast-configuration}?
     |  +--rw address           inet:ip-address
     |  +--rw type              identityref
     |  +--rw authentication {authentication}?
     |  |  +--rw (authentication-type)?
     |  |     +--:(symmetric-key)
     |  |        +--rw keyid?   leafref
     |  +--rw prefer?           boolean
     |  +--rw burst?            boolean
     |  +--rw iburst?           boolean
     |  +--rw source?           if:interface-ref
     |  +--rw minpoll?          log2seconds
     |  +--rw maxpoll?          log2seconds
     |  +--rw port?             inet:port-number {ntp-port}?
     |  +--rw version?          ntp-version
     +--rw associations
     |  +--ro association* [address local-mode isconfigured]
     |     +--ro address           inet:ip-address
     |     +--ro local-mode        identityref
     |     +--ro isconfigured      boolean
     |     +--ro stratum?          ntp-stratum
     |     +--ro refid?            refid
     |     +--ro authentication?
     |     |       -> /ntp/authentication/authentication-keys/keyid
     |     |       {authentication}?
     |     +--ro prefer?           boolean
     |     +--ro peer-interface?   if:interface-ref
     |     +--ro minpoll?          log2seconds
     |     +--ro maxpoll?          log2seconds
     |     +--ro port?             inet:port-number {ntp-port}?
     |     +--ro version?          ntp-version
     |     +--ro reach?            uint8
     |     +--ro unreach?          uint8
     |     +--ro poll?             log2seconds
     |     +--ro now?              uint32
     |     +--ro offset?           decimal64
     |     +--ro delay?            decimal64
     |     +--ro dispersion?       decimal64
     |     +--ro originate-time?   ntp-date-and-time
     |     +--ro receive-time?     ntp-date-and-time
     |     +--ro transmit-time?    ntp-date-and-time
     |     +--ro input-time?       ntp-date-and-time
     |     +--ro ntp-statistics
     |        +--ro discontinuity-time?   ntp-date-and-time
     |        +--ro packet-sent?          yang:counter32
     |        +--ro packet-sent-fail?     yang:counter32
     |        +--ro packet-received?      yang:counter32
     |        +--ro packet-dropped?       yang:counter32
     +--rw interfaces
     |  +--rw interface* [name]
     |     +--rw name                if:interface-ref
     |     +--rw broadcast-server! {broadcast-server}?
     |     |  +--rw ttl?              uint8
     |     |  +--rw authentication {authentication}?
     |     |  |  +--rw (authentication-type)?
     |     |  |     +--:(symmetric-key)
     |     |  |        +--rw keyid?   leafref
     |     |  +--rw minpoll?          log2seconds
     |     |  +--rw maxpoll?          log2seconds
     |     |  +--rw port?             inet:port-number {ntp-port}?
     |     |  +--rw version?          ntp-version
     |     +--rw broadcast-client! {broadcast-client}?
     |     +--rw multicast-server* [address] {multicast-server}?
     |     |  +--rw address
     |     |  |       rt-types:ip-multicast-group-address
     |     |  +--rw ttl?              uint8
     |     |  +--rw authentication {authentication}?
     |     |  |  +--rw (authentication-type)?
     |     |  |     +--:(symmetric-key)
     |     |  |        +--rw keyid?   leafref
     |     |  +--rw minpoll?          log2seconds
     |     |  +--rw maxpoll?          log2seconds
     |     |  +--rw port?             inet:port-number {ntp-port}?
     |     |  +--rw version?          ntp-version
     |     +--rw multicast-client* [address] {multicast-client}?
     |     |  +--rw address    rt-types:ip-multicast-group-address
     |     +--rw manycast-server* [address] {manycast-server}?
     |     |  +--rw address    rt-types:ip-multicast-group-address
     |     +--rw manycast-client* [address] {manycast-client}?
     |        +--rw address
     |        |       rt-types:ip-multicast-group-address
     |        +--rw authentication {authentication}?
     |        |  +--rw (authentication-type)?
     |        |     +--:(symmetric-key)
     |        |        +--rw keyid?   leafref
     |        +--rw ttl?              uint8
     |        +--rw minclock?         uint8
     |        +--rw maxclock?         uint8
     |        +--rw beacon?           log2seconds
     |        +--rw minpoll?          log2seconds
     |        +--rw maxpoll?          log2seconds
     |        +--rw port?             inet:port-number {ntp-port}?
     |        +--rw version?          ntp-version
     +--ro ntp-statistics
        +--ro discontinuity-time?   ntp-date-and-time
        +--ro packet-sent?          yang:counter32
        +--ro packet-sent-fail?     yang:counter32
        +--ro packet-received?      yang:counter32
        +--ro packet-dropped?       yang:counter32

  rpcs:
    +---x statistics-reset
       +---w input
          +---w (association-or-all)?
             +--:(association)
             |  +---w associations-address?
             |  |       -> /ntp/associations/association/address
             |  +---w associations-local-mode?
             |  |       -> /ntp/associations/association/local-mode
             |  +---w associations-isconfigured?
             |          -> /ntp/associations/association/isconfigured
             +--:(all)