All MIBs › TN-SYNCE-MIB
Organization: Transition Networks, Inc.
Last Updated: 2013-05-16
Category: Carrier and Optical Transport, Synchronization and Timing
Description: Manages Transition Networks device Synchronous Ethernet (SyncE) timing synchronization and clock source configuration.
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What Is TN-SYNCE-MIB?
This Transition Networks MIB manages Synchronous Ethernet (SyncE) timing synchronization on TN switches, which distributes a high-quality clock signal over Ethernet links for applications requiring precise timing (e.g., mobile backhaul). It exposes per-port SyncE state including SSM (Synchronization Status Message) hold-over and free-run states, wait-to-restore (WTR) timers, clock source selection, and clock-source table entries. It supports monitoring of hardware clock/timing health directly, since alarm states such as loss-of-lock (LOL) and hold-over deviation (DHOLD) reveal whether the device's timing reference has degraded or failed over to a lower-quality internal oscillator. It is a vendor implementation of concepts defined by ITU-T SyncE standards (G.8261/G.8262/G.8264) though not explicitly imported as separate MIBs here. It is typically deployed on Transition Networks switches in mobile backhaul or other networks requiring network-wide frequency synchronization. Engineers can download the TN-SYNCE-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in TN-SYNCE-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
- Transition Networks managed Ethernet switches (SyncE-capable)
Monitoring Examples
An engineer would poll the tnSyncETable (tnSyncEEntry) to check tnSyncEAlarmStateLOL and tnSyncEAlarmStateDHOLD — an active LOL alarm means the device has lost lock to its selected clock reference. tnSyncEStateSSMHoldOver and tnSyncEStateSSMFreeRun show whether the device is coasting on hold-over or has fallen back to free-run mode, both degraded timing states. The tnSyncEClkSourceTable (tnSyncEClkSourceEntry) and tnSyncESelState/tnSyncEClkSrc reveal which upstream clock source is currently selected, useful for tracing a sync problem back to its origin.
What Can Be Monitored
- loss-of-lock alarm
- hold-over/free-run state
- selected clock source
- wait-to-restore timer state
Imported Objects
From ENTITY-MIB
| MODULE-IDENTITY | |
| OBJECT-IDENTITY | |
| entPhysicalIndex | OBJECT-TYPE |
From SNMPv2-TC
| TruthValue |
From TRANSITION-SMI
| tnProducts | OBJECT-IDENTITY |
OIDs
RFC description
Manages Synchronous Ethernet (SyncE) clock source selection and synchronization state on Transition Networks devices.
Start monitoring Transition Networks managed Ethernet switches, SyncE-capable (clock lock/hold-over status) 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.