CDP Neighbor Discovery -- Will CI gets Created?

[Rohith G]

Hi,

As part of SNMP Discovery, I can now see neighbor devices attached to my router in the discovery_device_neighbors table.

I would like to understand the following:

Will ServiceNow automatically create Configuration Items (CIs) for these neighbor devices?
My requirement is to create CI records for the neighbor devices and establish relationships (links) between them and the parent router.
Is there a way to achieve this requirement in ServiceNow Discovery? If so, what would be the recommended approach?

Looking for your respose!
Thanks in Advance 🙂

[danielherre]

Hi @Rohith G ,

In my experience, I see [discovery_device_neighbors] is populated and CIs referenced there. But it is also true that all the devices I see there are included in "Discover CI" schedules. 

The lookup for the reference is most probably performed on the Pre/Post Sensor Scripts "Network Devices - Post Sensor" or "Network Devices - Post Sensor".

[Sam Webb]

Yes(ish), with some pre-requisites met. The terminology is "Layer 2 Discovery" and it's all documented here:

https://www.servicenow.com/docs/r/it-operations-management/itom-visibility/c_Layer2Discovery.html?co...

Edit - added the "ish" - L2 won't replace discovery of the neighbour. Creates a relationship to the CI when that CI is understood.

Hope that helps,

Sam