We need to know if there is any way to change device name in NetOps Portal
DX NetOps Performance Management Release : 20.2.x or later
Naming of discovered devices can be controlled via the Advanced section of the Discovery Profile:
TechDocs : DX NetOps Performance Management 22.2 : Manage Discovery Profiles
(see step 6)
If the name is found in either the sysName.0 or DNS for the entry, moving whichever one holds the name to the top of the order for naming will apply the name to the device.
If the DNS hostname has been updated and is what is already being used it can take up to 48 hours to reflect the change:
TechDocs : DX NetOps Performance Management 22.2 : Manage Hostname Changes