The Web-based SNMP in Multiple Vendor Environment

• Main Authors: Hsu Shu-Yu, 許書瑜
• Other Authors: Chung Chung-Ping
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/23300484406980052923

碩士 === 國立交通大學 === 資訊工程系 === 87 === We focus on solving the following existing problems of SNMP network management in multiple vendor environment. First, a management station may have some SNMP Managers and each of them has similar or duplicate management functions. Second, the SNMP management stations are centralized at some workstations. These problems result in high management cost and low performance. We consider some management factors. First, reducing the duplicate management functions will save much management cost and gain more efficient and flexible. Second, Keeping compatibility to the original management standard is more important. Thus, we present an approach that applies the Web technology to the SNMP environment and solve the above SNMP problems. In accordance to the current trend, we think the popular Web browser is suitable for the new generation management application. Network managers use Web browser to access SNMP information from any available SNMP agent. In order to keep the well-defined properties of both Web browser and SNMP agent, we do not modify the pre-defined properities of them. We integrate both Web Server and SNMP Manager into a Proxy Agent and the Web-Based SNMP network management system is a three-tier architecture. It consists of Web browser, Proxy Agent, and SNMP Agent. The only thing we need to do is Proxy Agent design. It is cheaper and flexible to extend the existing SNMP management scopes. Network managers monitor and control the remote network devices through the Proxy Agent. Our approach shows how to coordinate the UDP and HTTP protocols. The internal communication of Proxy Agent are two IPC mechanisms and they are Message Passing and File Sharing. There are four major functions in SNMP Manager module and they are Global Initializations, Remote agents discovery, Remote agents information polling, and SNMP message processing. We have achieved our goals and illustrated how to take advantages of the above two protocols and finally gain better benefit.