Control information description model and processing mechanism in the trustworthy and controllable network

Traditional networks are surprisingly fragile and difficult to manage. The problem can partly be attributed to the exposition of too many details of the controlled objects leading to the deluge of complexity in control plane, and the absence of network-wide views leading to the blindness of network management. With these problems, this paper decomposes the necessary network management information into three parts: the basic information, the cross-layer association, and global information. And a new controlled object description model is presented in the trustworthy and controllable network control architecture which separates the functionality of control and management of network form the data plane of IP network, and constructs the formal control and management plane of IP network. The new model identifies and abstracts the controlled objects with object-oriented approach. Based on this model, a cross-layer database is built to store the different layer control objects and to present cross-layer association view, a processing mechanism to process the original information is presented for global network state view, and a control plane is constructed to realize network control. The control information description model restricts the complexity of the controlled objects to their own implementation by abstraction, and alleviates the difficulty of network management. The cross-layer association view and the global network state view composes the network-wide views. The network-wide views realize the visibility and improve the manageability of network. Finally, we present 3 examples to indicate that the model alleviates the complexity of configuration management.