This is a numeric depth counter showing how many levels of policy inheritance were resolved to arrive at the current settings for one policy-resolution record showing where a chassis's inherited policy settings actually come from (a local override versus an org-wide or global policy). A network admin troubleshooting why a chassis inherited-policy record picked up settings from an unexpected policy would use this counter, together with the inherited-policy DN, to figure out how far up the org hierarchy UCS Manager had to walk to resolve the value. A policyLevel of 0 means the setting is defined directly on this object; a value of 2 would mean it was inherited two org levels up.