Duplicate Network adapters for servers

[Miguel Lara]

If I go to the identification rules for network adapter class, "name" and "MAC address" are used together for identification. We have a manually entered network adapter with a name and a MAC address, however, Discovery is creating a new record with the same Name and the same MAC address (only difference is capitalization in the MAC). My question is; what could cause Discovery to create a new network adapter instead of matching the one that is already in CMDB?

Thanks in advance for the help!

Miguel. 

[doug_schulze]

You are correct!

[Sudipta Goswami]

Document link - https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0761045

[krishsenthil]

Hi Doug,

Need you suggestion , we are also facing similar issue 

We are running  discovery for few Linux server Delete Handler on the Linux server pattern marking previous discovery records as absent and creating new record with same fields value.

we want to stop duplicate record creation .  

screenshot attached here 

Thanks 

Senthil

[doug_schulze]

In that other thread, id go the path from the last reply from Sid to see why the pattern is thinking there are different MACs and remedy that case.

[A_ Chan]

@doug.schulze - What if we're not using ServiceNow Discovery? I'm using Forescout as a discovery source.