Description: Selects whether the interface will be used primarily as as timing provider for other interfaces on the same board. This object is applicable only if the interface supports analog video reference signal, or digital video reference signal, i.e. if any of the bits `avrs' or `dvrs' is set in itsIfCapabilities.

no(0). Used primarily as normal transport interface and secondarily as digital timing provider. Operational state is non-dormant and alarms are raised only when ingress or egress connection exists.

analog(1). Used primarily as analog timing provider. Neither ingress nor egress connections are allowed. Operational state is non-dormant and alarms can be raised as needed. This value can only be set if the interface supports analog video reference signal, i.e. the `avrs' bit is set in itsIfCapabilities.

digital(1). Used primarily as digital timing provider and secondarily as transport interface. Operational state is non-dormant and alarms can be raised as needed regardless if any ingress or egress connection exists. This value can only be set if the interface supports digital video reference signal, i.e. the `dvrs' bit is set in itsIfCapabilities.