Figure: Relationship between ESM entities illustrates the relationship between the main entities in Enhanced Subscriber Management:
A subscriber is associated with only one subscriber profile.
A subscriber can be associated with one or more SLA profile (a VPLS service with 2 different SAPs can have different SLA profiles for the same subscriber).
A maximum of one SLA profile instance is generated (including ingress and egress queues) per SAP per SLA profile.
One or more hosts can be assigned to each SLA profile instance (these share the same queues).