防火墻雙機熱備系統(tǒng)的設(shè)計與實現(xiàn)
[Abstract]:An important feature of network equipment is its long-term, reliable operation. This requirement is even more critical for firewalls that connect internal and external networks. The two-machine hot standby system is an effective way to ensure the stability of firewall. Unlike routers and switches, the firewall, which focuses on security, holds the session table information for each connection on the device and records the related business done by the connection. Using the general router dual-machine hot standby system, only the data such as configuration and routing table are backed up, and the connection will be interrupted after the firewall switch. In this paper, a dual-computer hot standby system is designed for firewall, and different data are backed up according to the specific business of firewall. This paper studies the development history of dual-machine hot standby system and the business process of Huasang security product, and designs a dual-machine firewall hot standby system for the existing firewall equipment. The main research content of this paper is divided into four modules, the hot standby system control module, the hot standby system data synchronization module, the hot standby system inter-board communication module and the related business processing module. The control module realizes the functions of main and backup switching and link control through backup group. The data synchronization module encapsulates and sends the data of the session table by calling the session service and realizes two backup modes. A queue mode is designed in the inter-panel communication module, which can effectively reduce packet loss rate and delay. The related service processing module is used by other service modules, which enables other service modules to maintain service data on the end-to-end equipment. The test part simulates the actual firewall working environment, through the function test and the non-function test of the firewall dual computer hot standby system. The test results show that the system can meet the need of firewall hot standby. There will be no connection interruptions when the main standby switch occurs.
【學(xué)位授予單位】:哈爾濱工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TP393.05
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