Hello,
i want to know a little information about Spectrum feature of NCM.
it required which level of User on router.
secondly does it works with read community only.
NCM will not work with a read only community. It is a security risk.
The user will need privilege 15 on Cisco (or equivalent on other vendors).
https://docops.ca.com/ca-spectrum/10-3-0/en/managing-network/network-configuration-manager