Patent ID: 8171521

Claim:
A system for managing a network by value-based estimation, comprising: a value estimating unit configured to collect information of a plurality of network devices installed within a network for network estimation, and estimate values of the plurality of network devices on the basis of the collected information; a storage unit configured to store the values of the estimated network devices; a policy determining unit configured to verify validity of a policy to each of plurality of network devices by using the estimated values and determine application of the corresponding policy, wherein the validity of the policy compares a predetermined first value with a second value generated from each of plurality of network devices by using the estimated values; and a policy executing unit configured to convert the corresponding policy into a command suitable for the respective network device when the policy is determined to be reflected to the respective network device and transfer the command, wherein the collected information of the network devices are configured to change based on an a change of the network devices, wherein the change of the network devices comprises at least one or more additions or removals of the plurality of network devices, wherein the compared difference between the predetermined first value and the second value generated from the at least one of more of the plurality of network devices changes based on the change of the plurality of network devices, wherein the changed difference between the predetermined first value and the second value generated from the at least one of more of the plurality of network devices is evaluated to determine if the corresponding policy has changed based on the second value generated from the at least one of more of the plurality of network devices.