Strategic Thinking In The Network Management Application

With the expansion of network, how to manage the network is becoming harder and more complex. Policy-based network management (PBNM) is becoming popular in network field. PBNM is the key component of future network. Its merit is to provide excellent management on network, such as the ability to control Internet operation's increasing, the ability to make management more flexible, the ability to simplify the configuration on device and application, and the ability to integrate various management systems.This paper concentrates the importance of policy -based idea on the distributed application, especially in the field of network security. Under the control and guide of integrative security policy, PD2R uses detection tool to understand and evaluate the system's security status, and uses proper response to make system most safe and in low risk while using protection tool. The main idea of this paper is to integrate network management and network security in order to use consistent policy to implement consistent deployment and management in network field. And I illustrate the implement of this idea-Policy-Based Dynamic Network Management System (PBDNMS).PBDNMS uses linux PC and Cisco 7500 as PEP, windows PC server as PDF.With the application of policy, more and more people will turn their eyes on PBNM. Showing the excellent facts of policy, this paper will be more useful in security management and other fields.