PRVT-SYNC-ETHERNET-MIB

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Organization: BATM Advanced Communication

Last Updated: 2010-11-10

Category: Synchronization

Description: Handles Synchronous Ethernet (SyncE) setup for BATM Advanced Communication devices, including clock source selection and ESMC state.

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What Is PRVT-SYNC-ETHERNET-MIB?

PRVT-SYNC-ETHERNET-MIB is a BATM Advanced Communications enterprise MIB for managing Synchronous Ethernet (SyncE), the ITU-T G.8261/G.781-based mechanism for distributing frequency synchronization over Ethernet links. It exposes clock-source configuration and status per interface, including admin status, ESMC (Ethernet Synchronization Messaging Channel) state, frequency, quality level, and G.781 option mode, along with hold-off and wait-to-restore timers and a notifications group for quality changes. Its monitoring value is centered on software/protocol-level timing health: it lets an operator confirm which clock source a device is currently using, its received quality level, and whether ESMC signaling is healthy, revealing synchronization degradation or a clock source failover before it disrupts timing-sensitive services. It implements ITU-T G.781/G.8261 synchronization standards and typically works alongside standard interface and alarm MIBs on the same platform. It is deployed on BATM carrier Ethernet/transport switches used in mobile backhaul and other timing-sensitive network segments. Engineers can download the PRVT-SYNC-ETHERNET-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in PRVT-SYNC-ETHERNET-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

BATM Advanced Communications carrier Ethernet/transport switch

Monitoring Examples

An operator would poll syncEthernetClockSourceTable / syncEthernetClockSourceEntry to read syncEthernetClockSourceRecvQualityLevel and syncEthernetClockSourceEsmc for a given clock source, confirming the device is receiving a good-quality timing reference over that port. Checking syncEthernetClockSourceAdminStatus and syncEthernetClockSourceFrequency verifies the source is enabled and running at the expected frequency. A syncEthernetClockSourceQualityChangeNotify trap firing alongside a drop in syncEthernetClockSourceQuality would indicate the active timing source has degraded, prompting the switch to hold off (per syncEthernetHoldOffTime) before failing over to a backup source.

What Can Be Monitored

active clock source
clock source admin status
ESMC signaling state
received quality level
clock frequency
hold-off and wait-to-restore timers

Imported Objects

From IF-MIB

ifIndex

OBJECT-TYPE

From PRVT-SWITCH-MIB

switch

OBJECT-IDENTITY

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DateAndTime
RowStatus
TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
prvtSyncEthernetMIB	1.3.6.1.4.1.738.1.5.170			This is the MIB module to manage synchronization over ethernet.
prvtSyncEthernetMIBNotifications	1.3.6.1.4.1.738.1.5.170.0
NTF syncEthernetInvalidESMC	1.3.6.1.4.1.738.1.5.170.0.1			Invalid ESMC has been received.
NTF syncEthernetQualityLevelChange	1.3.6.1.4.1.738.1.5.170.0.2			Current value of syncEthernetClockSourceQuality has been changed.
NTF syncEthernetInvalidQualityLevelReceived	1.3.6.1.4.1.738.1.5.170.0.3			Invalid Quality level equals to QL-INVx has been received.
NTF syncEthernetDPLLReferenceChange	1.3.6.1.4.1.738.1.5.170.0.4			DPLL's reference clock changed.
NTF syncEthernetDPLLChanged	1.3.6.1.4.1.738.1.5.170.0.5			Some of the DPLL's operational status changes.
NTF syncEthernetDPLLLockFailed	1.3.6.1.4.1.738.1.5.170.0.6			If after new Reference selection the DPLL can't lock onto it, this will affect the Clock Source associated with that reference
prvtSyncEthernetMIBObjects	1.3.6.1.4.1.738.1.5.170.1
I32 syncEthernetHoldOffTime	1.3.6.1.4.1.738.1.5.170.1.1	Integer32	read-write	Timeout value, in millisseconds, for the hold-off timer.
I32 syncEthernetWaitToRestoreTime	1.3.6.1.4.1.738.1.5.170.1.2	Integer32	read-write	Timeout value, in minutes, for the wait-to-restore timer.
INT syncEthernetG781OptionMode	1.3.6.1.4.1.738.1.5.170.1.3	INTEGER	read-write	Specify which G.781 option mode to operate in.
syncEthernetClockSourceTable	1.3.6.1.4.1.738.1.5.170.1.10		not-accessible	Source clock synchronization table.
syncEthernetClockSourceEntry	1.3.6.1.4.1.738.1.5.170.1.10.1		not-accessible	Source clock synchronization entry.
ROW syncEthernetClockSourceRowStatus	1.3.6.1.4.1.738.1.5.170.1.10.1.2	RowStatus	read-create	Clock source synchronization table rowstatus.
INT syncEthernetClockSourceAdminStatus	1.3.6.1.4.1.738.1.5.170.1.10.1.3	INTEGER	read-create	Enable clock source.
T/F syncEthernetClockSourceEsmc	1.3.6.1.4.1.738.1.5.170.1.10.1.4	TruthValue	read-create	Enable receiving ESMC messages (Synchronization Status Messages). Only applicable for BITS clock sources.
U32 syncEthernetClockSourceFrequency	1.3.6.1.4.1.738.1.5.170.1.10.1.5	Unsigned32	read-create	Specify input frequency - N*8kHz Only applicable for BITS clock sources.
PRV syncEthernetClockSourceQuality	1.3.6.1.4.1.738.1.5.170.1.10.1.6	PrvtSyncEthernetQualityLevelType	read-create	Specify quality level In G781-option I mode, valid values are prs, ssuA, ssuB, dnu. In G781-option II mode, valid values are stu, prs, tnc, st2, st3, smc, st3e, dus, prov.
T/F syncEthernetClockSourceQualityChangeNotify	1.3.6.1.4.1.738.1.5.170.1.10.1.7	TruthValue	read-create	Enable quality level change notifications
PRV syncEthernetClockSourceRecvQualityLevel	1.3.6.1.4.1.738.1.5.170.1.10.1.8	PrvtSyncEthernetQualityLevelType	read-only	The received quality level value.
DAT syncEthernetClockSourceLastRecvEsmcPduTime	1.3.6.1.4.1.738.1.5.170.1.10.1.9	DateAndTime	read-only	Time elapsed since the last valid ESMC message received
DAT syncEthernetClockSourceLastRecvEsmcErrorPduTime	1.3.6.1.4.1.738.1.5.170.1.10.1.10	DateAndTime	read-only	Time elapsed since the last invalid ESMC message received
U32 syncEthernetClockSourceLastRecvEsmcPduType	1.3.6.1.4.1.738.1.5.170.1.10.1.11	Unsigned32	read-only	Last received ESMC message type
U32 syncEthernetClockSourceLastRecvLastError	1.3.6.1.4.1.738.1.5.170.1.10.1.12	Unsigned32	read-only	Last error code
U32 syncEthernetClockSourceNumRecvEsmcPdu	1.3.6.1.4.1.738.1.5.170.1.10.1.13	Unsigned32	read-only	Total number of received ESMC messages
U32 syncEthernetClockSourceNumDiscEsmcPdu	1.3.6.1.4.1.738.1.5.170.1.10.1.14	Unsigned32	read-only	Total number of discarded ESMC messages
U32 syncEthernetClockSourceNumSignalFail	1.3.6.1.4.1.738.1.5.170.1.10.1.15	Unsigned32	read-only	Total number of generated signal failure events
T/F syncEthernetClockSourceQualityInvalidNotify	1.3.6.1.4.1.738.1.5.170.1.10.1.16	TruthValue	read-create	Enable invalid quality notifications
T/F syncEthernetClockSourceEsmcInvalidNotify	1.3.6.1.4.1.738.1.5.170.1.10.1.17	TruthValue	read-create	Enable invalid ESMC notifications
syncEthernetClockOutputTable	1.3.6.1.4.1.738.1.5.170.1.12		not-accessible	Output clock synchronization table.
syncEthernetClockOutputEntry	1.3.6.1.4.1.738.1.5.170.1.12.1		not-accessible	Output clock synchronization entry.
ROW syncEthernetClockOutputRowStatus	1.3.6.1.4.1.738.1.5.170.1.12.1.2	RowStatus	read-create	syncEthernetClockOutput table rowStatus
T/F syncEthernetClockOutputEsmc	1.3.6.1.4.1.738.1.5.170.1.12.1.3	TruthValue	read-create	Enable sending ESMC messages Only applicable for BITS clock outputs.
U32 syncEthernetClockOutputFrequency	1.3.6.1.4.1.738.1.5.170.1.12.1.4	Unsigned32	read-create	Specify output frequency - N*8kHz Only applicable for BITS clock outputs.
I32 syncEthernetClockOutputDpll	1.3.6.1.4.1.738.1.5.170.1.12.1.5	Integer32	read-create	Assign output clock to DPLL Only applicable for BITS clock outputs. Must be set to the syncEthernetDpllModuleId value of an existing row in syncEthernetDpllTable.
PRV syncEthernetClockOutputQualityLevel	1.3.6.1.4.1.738.1.5.170.1.12.1.6	PrvtSyncEthernetQualityLevelType	read-only	Last quality level value sent
DAT syncEthernetClockOutputLastQualityLevelChange	1.3.6.1.4.1.738.1.5.170.1.12.1.7	DateAndTime	read-only	Time elapsed since the last quality level change
T/F syncEthernetClockOutputMsgEvent	1.3.6.1.4.1.738.1.5.170.1.12.1.8	TruthValue	read-only	Last ESMC message type sent
U32 syncEthernetClockOutputNumTransmittedEsmcPdu	1.3.6.1.4.1.738.1.5.170.1.12.1.9	Unsigned32	read-only	Total number of ESMC messages sent
U32 syncEthernetClockOutputNumTransmittedEventEsmcPdu	1.3.6.1.4.1.738.1.5.170.1.12.1.10	Unsigned32	read-only	Total number of ESMC messages sent
syncEthernetDpllTable	1.3.6.1.4.1.738.1.5.170.1.14		not-accessible	Synchronization DPLL table
syncEthernetDpllEntry	1.3.6.1.4.1.738.1.5.170.1.14.1		not-accessible	Synchronization DPLL entry
I32 syncEthernetDpllModuleId	1.3.6.1.4.1.738.1.5.170.1.14.1.1	Integer32	not-accessible	Synchronization DPLL module index
ROW syncEthernetDpllRowStatus	1.3.6.1.4.1.738.1.5.170.1.14.1.2	RowStatus	read-create	Synchronization DPLL rowstatus
INT syncEthernetDpllAdminStatus	1.3.6.1.4.1.738.1.5.170.1.14.1.3	INTEGER	read-create	Administrative status of the DPLL
INT syncEthernetDpllReferenceSelection	1.3.6.1.4.1.738.1.5.170.1.14.1.4	INTEGER	read-create	Specify reference selection mode
T/F syncEthernetDpllEnableQualityLevel	1.3.6.1.4.1.738.1.5.170.1.14.1.5	TruthValue	read-create	Enable reference selection based on quality level Only applicable when syncEthernetDpllReferenceSelection equals g781.
T/F syncEthernetDpllStatusChangeNotify	1.3.6.1.4.1.738.1.5.170.1.14.1.6	TruthValue	read-create	Enable DPLL status change notifications
T/F syncEthernetDpllReferenceChangeNotify	1.3.6.1.4.1.738.1.5.170.1.14.1.7	TruthValue	read-create	Enable reference clock change notifications
INT syncEthernetDpllStatus	1.3.6.1.4.1.738.1.5.170.1.14.1.8	INTEGER	read-only	DPLL operational status
DAT syncEthernetDpllStatusLastChange	1.3.6.1.4.1.738.1.5.170.1.14.1.9	DateAndTime	read-only	Time since last DPLL status change
PRV syncEthernetDpllSystemQualityLevel	1.3.6.1.4.1.738.1.5.170.1.14.1.10	PrvtSyncEthernetQualityLevelType	read-only	System quality level
DAT syncEthernetDpllSystemQualityLevelLastChange	1.3.6.1.4.1.738.1.5.170.1.14.1.11	DateAndTime	read-only	Time since last system quality level change
OCT syncEthernetDpllSelectedReferenceClock	1.3.6.1.4.1.738.1.5.170.1.14.1.12	OCTET STRING	read-only	The selected reference clock source
DAT syncEthernetDpllSelectedReferenceClockChange	1.3.6.1.4.1.738.1.5.170.1.14.1.13	DateAndTime	read-only	Time since last reference clock change
syncEthernetDpllClkRefTable	1.3.6.1.4.1.738.1.5.170.1.16		not-accessible	Synchronization DPLL clock reference table
syncEthernetDpllClkRefEntry	1.3.6.1.4.1.738.1.5.170.1.16.1		not-accessible	Synchronization DPLL clock reference entry
ROW syncEthernetDpllClkRefRowStatus	1.3.6.1.4.1.738.1.5.170.1.16.1.2	RowStatus	read-create	Synchronization DPLL clock reference rowstatus
U32 syncEthernetDpllClkRefPriority	1.3.6.1.4.1.738.1.5.170.1.16.1.3	Unsigned32	read-create	Specify reference clock priority
T/F syncEthernetDpllClkRefLockOut	1.3.6.1.4.1.738.1.5.170.1.16.1.4	TruthValue	read-create	Lock reference clock
I32 syncEthernetDpllClkRefFailStatus	1.3.6.1.4.1.738.1.5.170.1.16.1.5	Integer32	read-only	DPLL reference clock status

RFC description

Manages BATM Advanced Communication Synchronous Ethernet (SyncE) configuration, clock source selection, and ESMC state.

Start monitoring BATM Advanced Communications carrier Ethernet/transport switch (Synchronous Ethernet, SyncE) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download PRVT-SYNC-ETHERNET-MIB

What Is PRVT-SYNC-ETHERNET-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description