The present application discloses systems and methods for adapting network capacity assigned to a partition. In some embodiment, the method includes: partitioning available capacity of a system into at least a first non-guaranteed bit rate (non-GBR) partition and a second non-GBR partition; determining that a performance goal for the first non-GBR partition is not met; and increasing a committed rate value associated with the first non-GBR partition and decreasing the committed rate value associated with the second non-GBR partition in response to determining that the performance goal is not met.