CISCO-ATM-NETWORK-CLOCK-MIB
47 objects
The MIB module for management of network clock distribution and the Network Clock Distribution Protocol (NCDP) in Cisco devices. In the context of this MIB 'network clock' refers to the clock signal that is used to time the physical interfaces. Network clock distribution refers to the distribution of a clock signal through a device and between devices for use by the physical interfaces. (See Bell Communications Research, GR-1244-CORE, 'Clocks for the Synchronized Network: Common Generic Criteria' and Bell Communications Research, GR-436-CORE, 'Digital Network Synchronization Plan'). NCDP is used to configure the network clocking hardware of the platform on which an NCDP entity exists. The underlying network clocking hardware in turn distributes a clock signal through the device for use by the physical interfaces. When all of the interfaces that support synchronous clock recovery in a network are timed to one master clock signal, the network is said to be synchronized. NCDP protocol entities residing on adjacent devices cooperate through the exchange of protocol messages to construct a spanning network clock distribution tree. The tree preserves the synchronous digital hierarchy. After NCDP has determined that its algorithm has converged it superimposes the clock distribution tree on the underlying network and the result is a synchronized network.
Imported Objects
| CISCO-SMI | ciscoMgmt |
| ENTITY-MIB | entPhysicalIndex PhysicalIndex |
| SNMPv2-CONF | MODULE-COMPLIANCE NOTIFICATION-GROUP OBJECT-GROUP |
| SNMPv2-SMI | Integer32 MODULE-IDENTITY NOTIFICATION-TYPE OBJECT-TYPE |
| SNMPv2-TC | RowStatus TEXTUAL-CONVENTION TimeStamp TruthValue |
| OID | Name | Access | Status | Description |
|---|---|---|---|---|
| 1.3.6.1.4.1.9.9.121 | IdentityciscoAtmNetworkClockMIB | The MIB module for management of network clock distribution and the Network Clock Distribution Protocol (NCDP) in Cisco devices. In the context of this MIB 'ne… | ||
| 1.3.6.1.4.1.9.9.121.1 | NodeciscoAtmNetworkClockMIBObjects | |||
| 1.3.6.1.4.1.9.9.121.1.1 | NodecncGlobal | |||
| 1.3.6.1.4.1.9.9.121.1.1.1 | ScalarcncDistributionMethod | read-write | current | The method used to distribute network clock for the device. When the mode of operation is 'ncdp', the services provided by the NCDP entity are in use. When thi… |
| 1.3.6.1.4.1.9.9.121.1.1.2 | ScalarcncNotificationOnChange | read-write | current | The value of this object determines whether a notification should be generated due to a change in the device's root clock source (given by the value of cncRoot… |
| 1.3.6.1.4.1.9.9.121.1.1.3 | ScalarcncNodeStratum | read-only | current | The stratum at which the device exists in the Synchronous Digital Hierarchy (See American National Standards Institute, ANSI T1.101, 'Synchronization Interface… |
| 1.3.6.1.4.1.9.9.121.1.1.4 | ScalarcncNcdpMaxDiameter | read-write | current | The maximum possible height of a network clock distribution tree in the network. (Alternatively this is known as the maximum diameter of the network of devices… |
| 1.3.6.1.4.1.9.9.121.1.1.5 | ScalarcncNcdpMessageInterval | read-write | current | The interval at which NCDP configuration PDUs are to be generated. The message interval directly affects the convergence time of the NCDP algorithm. Convergenc… |
| 1.3.6.1.4.1.9.9.121.1.1.6 | ScalarcncNcdpHoldTime | read-write | current | The delay between the transmission of NCDP configuration PDUs. The hold time is used to limit the transmission of NCDP configuration PDUs out of an interface t… |
| 1.3.6.1.4.1.9.9.121.1.1.7 | ScalarcncSourceChangeReason | read-only | current | The reason for the most recent change of a source of network clock, as indicated by the change in the value of cncSourceChangeTimeStamp. 'none' indicates that … |
| 1.3.6.1.4.1.9.9.121.1.1.8 | ScalarcncSourceChangeTimeStamp | read-only | current | The value of sysUpTime when the most recent change of a source of network clock occurred. A value of 0 indicates that no such event has occurred since the inst… |
| 1.3.6.1.4.1.9.9.121.1.1.9 | ScalarcncRootClockSource | read-only | current | The entPhysicalIndex of the network clock source that is actively supplying network clock within the device. |
| 1.3.6.1.4.1.9.9.121.1.2 | NodecncManualSource | |||
| 1.3.6.1.4.1.9.9.121.1.2.1 | TablecncManualSourceTable | not-accessible | current | A table of network clock sources available to the managed system. |
| 1.3.6.1.4.1.9.9.121.1.2.1.1 | RowcncManualSourceEntry | not-accessible | current | Network clock status and statistics for sources of network clock. When the value of cncDistributionMethod is 'manual', the managed system uses this table to se… |
| 1.3.6.1.4.1.9.9.121.1.2.1.1.1 | ColumncncManualSourcePriority | not-accessible | current | A value used to identify a source of network clock available to the device's manual network clock selection algorithm. |
| 1.3.6.1.4.1.9.9.121.1.2.1.1.2 | ColumncncManualSourceId | read-create | current | The entPhysicalIndex that uniquely identifies a source of network clock within the managed system. |
| 1.3.6.1.4.1.9.9.121.1.2.1.1.3 | ColumncncManualSourceHealth | read-only | current | The health of the clock source identified by cncManualSourceId. |
| 1.3.6.1.4.1.9.9.121.1.2.1.1.4 | ColumncncManualRowStatus | read-create | current | The status of this conceptual row. |
| 1.3.6.1.4.1.9.9.121.1.3 | NodecncNcdpSource | |||
| 1.3.6.1.4.1.9.9.121.1.3.1 | TablecncNcdpSourceTable | not-accessible | current | A table of configured network clock sources available to the managed system for use by the NCDP protocol entity. |
| 1.3.6.1.4.1.9.9.121.1.3.1.1 | RowcncNcdpSourceEntry | not-accessible | current | Network clock status and statistics for sources of network clock identified by entPhysicalIndex and used by the managed system when the value of cncDistributio… |
| 1.3.6.1.4.1.9.9.121.1.3.1.1.1 | ColumncncNcdpBestClockSource | read-only | current | An indication of whether the NCDP entity is presently advertising this clock source as the best clock source available in this table. |
| 1.3.6.1.4.1.9.9.121.1.3.1.1.2 | ColumncncNcdpPriority | read-create | current | The network-wide priority of this clock source if configured as a source of network clock for NCDP. The highest priority clock source is that clock source havi… |
| 1.3.6.1.4.1.9.9.121.1.3.1.1.3 | ColumncncNcdpStratum | read-create | current | The stratum level associated with this clock source if configured as a source of network clock for NCDP. (See American National Standards Institute, ANSI T1.10… |
| 1.3.6.1.4.1.9.9.121.1.3.1.1.4 | ColumncncNcdpPRSReference | read-create | current | An value that identifies the primary reference source that the network clock available from this source is traceable to if configured as a source of network cl… |
| 1.3.6.1.4.1.9.9.121.1.3.1.1.5 | ColumncncNcdpSourceHealth | read-only | current | The health of the clock source associated with this row. |
| 1.3.6.1.4.1.9.9.121.1.3.1.1.6 | ColumncncNcdpRowStatus | read-create | current | The status of this conceptual row. |
| 1.3.6.1.4.1.9.9.121.1.4 | NodecncNcdp | |||
| 1.3.6.1.4.1.9.9.121.1.4.1 | TablecncNcdpAtmTable | not-accessible | current | A table containing the status of NCDP on the device's ATM interfaces. |
| 1.3.6.1.4.1.9.9.121.1.4.1.1 | RowcncNcdpAtmEntry | not-accessible | current | An entry in the cncNcdpAtm table containing the status of Ncdp on an ATM interface. A row in this table is created by the managed system and disappears when th… |
| 1.3.6.1.4.1.9.9.121.1.4.1.1.1 | ColumncncNcdpEnable | read-write | current | An indication of whether NCDP is presently running on an interface. When NCDP is enabled for an interface, the interface is an active member of the clock distr… |
| 1.3.6.1.4.1.9.9.121.1.4.1.1.2 | ColumncncNcdpAdminWeight | read-write | current | A weight metric used by the NCDP protocol entity and associated with a physical interface that supports synchronous clock recovery. When NCDP is enabled for th… |
| 1.3.6.1.4.1.9.9.121.1.4.1.1.3 | ColumncncNcdpVpi | read-write | current | The VPI value of the VCC supporting the NCDP entity at this ATM interface. If the values of cncNcdpVpi and cncNcdpVci are both equal to zero then the NCDP enti… |
| 1.3.6.1.4.1.9.9.121.1.4.1.1.4 | ColumncncNcdpVci | read-write | current | The VCI value of the VCC supporting the NCDP entity at this ATM interface. If the values of cncNcdpVpi and cncNcdpVci are both equal to zero then the NCDP enti… |
| 1.3.6.1.4.1.9.9.121.1.4.1.1.5 | ColumncncNcdpHealth | read-only | current | The health of the clock source associated with this row. |
| 1.3.6.1.4.1.9.9.121.2 | NodeciscoAtmNetworkClockNotificationPrefix | |||
| 1.3.6.1.4.1.9.9.121.2.0 | NodeciscoAtmNetworkClockMIBNotifications | |||
| 1.3.6.1.4.1.9.9.121.2.0.1 | NotificationcncNotifySourceChange | current | This notification indicates that the agent has detected a change in the device's root source of network clock. This notification is generated whenever there is… | |
| 1.3.6.1.4.1.9.9.121.3 | NodeciscoAtmNetworkClockConformance | |||
| 1.3.6.1.4.1.9.9.121.3.1 | NodeciscoAtmNetworkClockMIBCompliances | |||
| 1.3.6.1.4.1.9.9.121.3.1.1 | CompliancecncMIBCompliance | current | The compliance statement for SNMPv2 entities which implement network clock distribution methods and NCDP. | |
| 1.3.6.1.4.1.9.9.121.3.2 | NodeciscoAtmNetworkClockMIBGroups | |||
| 1.3.6.1.4.1.9.9.121.3.2.1 | GroupcncGroup | current | The cnc group of objects providing for management of network clock distribution and NCDP entities. | |
| 1.3.6.1.4.1.9.9.121.3.2.2 | GroupcncNotificationGroup | current | Conformance group for cnc notifications. |
Type Definitions
| Name | Syntax | Status | Description |
|---|---|---|---|
| CncHealth | INTEGER { good(1), bad(2), unknown(3) } | current | The health of a source of network clock. A value of 'good' indicates that a given source of network clock is known by the managed system to be good. A value of 'bad' indicates that a given source of network clock is kno… |
| CncStratum | INTEGER { s1(1), s2e(2), s2(3), s3e(4), s3(5), s4e(6), s4(7), other(8) } | current | The stratum level associated with a source of network clock or a device. (See American National Standards Institute, ANSI T1.101, 'Synchronization Interface for Digital Networks' and Bell Communications Research, GR-436… |