Gx-based overrides refer to the activation or modification of the existing subscriber host-related objects on the node.
Subscriber host-related objects are shown in Figure: ESM objects managed via various policies and profiles. A subscriber represents a residence or home and it is identified by Subscriber-Id string on the node. A subscriber on the node can consist of multiple hosts in a bridged home environment or a single host in a routed home environment.
The two basic concepts in ESM context are sla-profile with its associated objects and sub-profile with its associated objects.
Sla-profile defines a service level (rates, queues, filters) for a group of hosts sharing the same sla-profile instance within the subscriber. There can be multiple sla-profile instances per subscriber.
Sub-profile defines aggregate rate of the subscriber along with accounting policy. There is only one sub-profile per subscriber.