Wideband access server cluster system and apparatus
A technology for accessing servers and cluster systems, which is applied in the field of broadband access servers, can solve problems such as reduced utilization efficiency of BAS computing resources, increased design complexity of BAS equipment, and consumption of BAS computing resources, so as to reduce computing resource consumption and improve resource utilization. Effect of Utilization and Reduced Design Complexity
Inactive Publication Date: 2009-01-07
NEW H3C TECH CO LTD
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Problems solved by technology
[0012] In the dual-system hot backup solution, the BAS devices need to exchange their information regularly, which undoubtedly consumes a lot of money for BAS devices with limited computing resources; and, when the dual-machine backup cluster develops into a 1:N In the case of multiple backup clusters, each BAS device needs to maintain the internal topology of the BAS cluster in addition to exchanging information regularly. sex has a greater impact
[0013] 2) The design complexity of BAS equipment increases
[0014] In order to ensure the reliability of data synchronization between BASs, BAS equipment must maintain the data synchronization state machine, which will increase the design complexity of BAS equipment and increase the system cost
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[0045]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0046] see figure 2 As shown, considering the access control function and AAA function of the BAS device, the BAS device can be abstracted into various access control subsystems A1, A2, ..., An (such as 802.1X, Portal, PPPoE, VPN, etc. ) and AAA subsystem constituted system. use figure 2 The BAS equipment structure shown, the existing dual BAS hot standby system can be expressed as image 3 In the form shown, in image 3 Among them, the AAA subsystem and each access control subsystem need to back up the internal control and data information of the subsystem to the opposite end in real time to ensure the synchronization of data and status between the dual BAS devices.
[0047] In the present invention, in order to solve the defects of the prior art,...
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The invention discloses a BAS cluster system, which comprises an AAA proxy and at least two Fit BASes, wherein, the Fit BAS is mainly used for finishing the function of user access control, reporting the user access control information to the AAA proxy, and receiving the user access control information distributed by the AAA proxy; the AAA proxy is mainly used for information interaction with an AAA server and synchronously offers the user access control information reported by the Fit BAS to other Fit BASes in the cluster system. Additionally, the invention further discloses a Fit BAS and the AAA proxy. The BAS cluster system can ensure that BAS backup can be realized under the condition that the user business is not interrupted, the utilization rate of BSA resource is improved, and the complexity for designing BAS is lowered.
Description
technical field [0001] The present invention relates to broadband access server (BAS, Broadband Access Server) technology, in particular to a BAS cluster system and device. Background technique [0002] BAS is an entrance device that provides Internet access services for users, and supports multiple access methods such as 802.1X, Portal, Point-to-Point Protocol over Ethernet (PPPoE), and Virtual Local Area Network (VPN). With the continuous enrichment of Internet services such as voice and video, BAS equipment carries more and more types of services. At the same time, users have higher and higher reliability requirements for BAS equipment. [0003] In order to meet the user's requirements for reliability, the BAS cluster system composed of multiple BAS devices came into being. The most common embodiment of the BAS cluster system is the BAS dual-machine backup. figure 1 It shows the network diagram of BAS dual-system backup. Each edge switch is interconnected with two BAS d...
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IPC IPC(8): H04L12/28H04L29/08H04L12/24
Inventor 杨旭
Owner NEW H3C TECH CO LTD