In some examples, NICM 45 may create a new vBNG instance when the existing instances are within a threshold amount of supported subscriber capacity, a login rate is higher than the calls per second (CPS) handled by the existing instances, and/or an existing vBNG instance has ceased. Similarly, when the existing instances are less than a threshold amount of subscriber capacity, and/or a login rate for an existing vBNG instance is less than a threshold calls per second (CPS), NICM 45 may bring down (or, in other words, delete or deactivate) the particular vBNG and reduce costs for customers. Creating a new vBNG instance or deactivating existing vBNG instances may improve an operation of a network system (e.g., network system 10 of