Optimization On Dezhou Network Communications Corporation Enterprise Information Network

The Dezhou Network Communications Corporation Enterprise Information Network is a computerized and integrated digital communication network which is based on data communication. It helps achieve the aim of information communication and the share of information. It can provide CNC with network services and information services. With the rapid development of the market and business of CNC, the size and the volume of Enterprise Information Network is increasing greatly. Besides, more new services are provided and the computer control system is becoming more and more centralized. As a result, the present information network cannot meet CNC's demand for the performance, reliability and safty of the network. So it's very urgent to optimize the Enterprise Information Network of CNC.This paper first makes a brief introduction of the present situation of the information network of CNC,analyze it from its performance , reliability and safty, points out the problems existing in the present Enterprise Information Network. The the paper expounds the principle of network optimization from the optimization principle and optimization strategy. Next, the paper introduces some optimization related technology, including some network technology theories, the measurement of network performance, and technology on network safety. Forth, bases on the author's own experience of the information optimization project of CNC, the paper offers an information network optimization plan, including topology structure optimization, network layer optimization, facility optimization, fire war safty plan and safe control strategy. Last, it makes a brief analysis of the five stages of the optimization process and the effect of each stage. Through a diagram on the comparison of the performance of the network before and after the optimization, it proves the effect of optimization.This plan effectively arrange the IP address by employing VLSM. It distributes well all VLAN into the two redundancy key network facilities by using spanning-tree, achieving the aim of effective management of circuits. The separating business VLAN and the management VLAN was up to separating data lumen, at the same time ensuring the safty of the network. It connects Dezhou CNC network with the networks of the counties on the wide area network through OSPF dynamic routing protocol. The routing protocol of the information network of CNC of Dezhou and CNC of Shandong Province attains route through policy routing. It controls redundancy cable through HSRP protocol. It separates the network of Dezhou CNC with the network of the other enterprises by using hardware fire wall. It set access control strategy between VLAN according to the actual business visits. It stops irrespective services and services with hidden safty trouble to ensuer the safety of network.After the process of optimization is finished prudently and orderly, the performance of the network can be greatly improved. It can lay a solid fundation for the broading of the scope of the network, the increasing of the business and the opening of new business.