cncSourceChangeReason
CISCO-ATM-NETWORK-CLOCK-MIB ·
.1.3.6.1.4.1.9.9.121.1.1.7
Object
scalar
Enumeration
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 the source of network clock
has not changed.
'lossOfLock' indicates that the clock source was
changed because the network clocking hardware lost
lock on the previous network clock source.
'lossOfActivity' indicates that the clock source was changed
because the network clocking hardware detected a loss of
activity on the previous network clock source.
'ncdpRestructure' indicates that the NCDP entity has changed
the clock source as a result of a network-wide network clock
distribution tree restructuring process.
When the reason for a clock switchover is none of the
above, the value of this object is 'other'.
Context
- MIB
- CISCO-ATM-NETWORK-CLOCK-MIB
- OID
.1.3.6.1.4.1.9.9.121.1.1.7- Type
- scalar
- Access
- readonly
- Status
- current
- Parent
- cncGlobal
- Siblings
- 8
Syntax
Enumeration
Values & Constraints
Enumerated Values
1 | none |
2 | lossOfLock |
3 | lossOfActivity |
4 | ncdpRestructure |
5 | other |
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| cncDistributionMethod 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 this is the case, NCDP… | scalar | Enumeration | .1.3.6.1.4.1.9.9.121.1.1.1 |
| cncNotificationOnChange 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 cncRootClockSource).
A v… | scalar | SNMPv2-TCTruthValue | .1.3.6.1.4.1.9.9.121.1.1.2 |
| cncNodeStratum The stratum at which the device exists in the Synchronous
Digital Hierarchy (See American National Standards
Institute, ANSI T1.101, 'Synchronization Interface for
Digital Networ… | scalar | CncStratum | .1.3.6.1.4.1.9.9.121.1.1.3 |
| cncNcdpMaxDiameter 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 that are
partici… | scalar | Integer32 | .1.3.6.1.4.1.9.9.121.1.1.4 |
| cncNcdpMessageInterval The interval at which NCDP configuration PDUs are to be
generated.
The message interval directly affects the convergence time
of the NCDP algorithm. Convergence time … | scalar | milliseconds Integer32 | .1.3.6.1.4.1.9.9.121.1.1.5 |
| cncNcdpHoldTime 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 to a maxi… | scalar | milliseconds Integer32 | .1.3.6.1.4.1.9.9.121.1.1.6 |
| cncSourceChangeTimeStamp 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 instantiatio… | scalar | SNMPv2-TCTimeStamp | .1.3.6.1.4.1.9.9.121.1.1.8 |
| cncRootClockSource The entPhysicalIndex of the network clock source that is
actively supplying network clock within the device. | scalar | ENTITY-MIBPhysicalIndex | .1.3.6.1.4.1.9.9.121.1.1.9 |