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Prevent duplicates or misclassification of IP switches and routers during discovery - Support and Troubleshooting
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  • Prevent duplicates or misclassification of IP switches and routers during discovery
KB0693298

Prevent duplicates or misclassification of IP switches and routers during discovery


2779 Views Last updated : Jul 17, 2025 public Copy Permalink
KB Summary by Now Assist

Issue

Duplicate switch and router records are being created when a discovery schedule is running, resulting in misidentified existing configuration items (CI).

Release

Any release

Cause

Configuration item (CI) reclassification—changing between a router and a switch—can lead to duplicates when:

  • The Identification Reconciliation Engine receives two simultaneous payloads from discovery with same name for IP Switch and IP Router. 

When this happens:

  • The existing record is deleted and a new one is inserted with the same sys ID, but a second payload may arrive during this process.
  • The second payload cannot match on name, resulting in a duplicate record being created.

Resolution

To prevent misclassification between routers and switches:

  • Ensure the system OID (object ID) is included in the SNMP - Classify probe payload.
  • Under Standard Network Switch and Standard Network Router classification, make sure that sysoid does not equal an empty value.

 

 


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