Gx and RADIUS (CoA) policy management interfaces are simultaneously supported for the same subscriber-host.
RADIUS and Gx share the same entries for filter entry inserts (NAS-Filter-Rules and Alc-NAS-Filter-Rule-Shared) and therefore the most recent insert overrides the previous one. Similar logic applies to subscriber-string overrides and QoS overrides, where the most recent source, overrides the previous one.
However, PCC rules (IP-criteria based Gx rules) are provisioned in a separate filter ‛entry’ space from RADIUS and Gx filter inserts and therefore the PCC rules and RADIUS/Gx based filter inserts can independently coexist.
Filter/QoS-policy entry order is shown in Figure: CAM table population. The order of configuration blocks (static, PCC rules or NAS filter inserts) is configurable. For example, an operator can specify that static filter entries are populated before PCC rules which are then populated before NAS filter inserts.
