NE resynchronization
Full and custom NE resynchronization
The Resync contextual menu option for an object specifies that SNMP MIB and CLI information bases for the object are reread to resynchronize them with the NFM-P database. The NFM-P database is updated to reflect the NE information. When you choose the Resync option at the NE level, you can choose to resynchronize all MIBs or perform a customized resynchronization. When you choose to resynchronize all MIBs, the color of the NE object in the navigation tree is yellow during the resynchronization. When you choose a customized resynchronization, you can choose the MIB entries to synchronize. See To partially or fully resynchronize NEs with the NFM-P database for more information about performing NE resynchronizations.
If SNMP streaming is enabled on an NE, the resynchronization time may be significantly reduced in a high-latency network. See SNMP streaming in Discovering devices using the NFM-P for more information.
Initial synchronization
An NFM-P operator must ensure that the discovery of each managed NE completes successfully, and that the NE and NFM-P database information are fully synchronized. The First Full Resync Done attribute on the Managed State tab of the Discovery Manager form indicates whether an NE has undergone one full resynchronization since the NE discovery, most recent NE software upgrade, or an NFM-P system upgrade. If an NE has not undergone one full resynchronization, and the Resync Status of the NE on the Resync Status tab is Resync Failed, the operator must manually resynchronize the NE.
Scheduled NE resynchronization
Some MIBs and device types are set with a scheduled resynchronization value when the device is discovered. Resynchronization is scheduled to capture any device changes that are not event notified or available in SNMP traps. Scheduled polling can be added or changed for MIBs as needed. Scheduled resynchronization is enabled in the Polling tab in the device properties and configured in the Mediation menu. See To configure polling for a 7250 IXR, 7450 ESS, 7705 SAR, 7750 SR, 7950 XRS, VSR, or Wavence SM and To configure device mediation for more information.
Resynchronization status
The Resync Status tab of the Discovery Manager form displays the following resynchronization attributes for each managed NE; the attributes are updated after an attempted resynchronization of all MIBs, but not after a customized resynchronization attempt:
The Resync Status value is one of the following:
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Full Resync Done—a resynchronization has successfully completed
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Full Resync Failed—a resynchronization attempt has failed
Full Resync Failed does not indicate that the SNMP agent on the NE is unreachable; if the agent is unreachable, an alarm is raised against the NE and the NE icon color changes to red. When the agent is again reachable, the alarm clears and the NE icon color changes to green.
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Requested—the resynchronization request is queued for processing.
The Scheduled Resync Status value is one of the following: