Service control method, service control device and broadband access servers

Abstract

The invention discloses a service control method. The method comprises the following steps: informing a first fault server to switch services to a corresponding backup server when the first fault server in failure exists a first broadband access server; and / or assigning services of a second fault server to at least one of other second broadband access servers executing the same protocol without failing at present when the second fault server in failure exists a second broadband access server, and informing the left at least one second broadband access server to activate the assigned services. The invention also discloses a service control device and two broadband access servers and can switch the services without interruption.

Description

technical field [0001] The present invention relates to the communication field, in particular to a service control method, device and broadband access server. Background technique [0002] During network construction and operation, telecom operators require equipment, networks, and services to be highly reliable. Devices and networks adopt various technologies to ensure high reliability, and service reliability is usually realized by using Broadband Remote Access Server (BRAS, Broadband Remote Access Server). [0003] The BRAS can terminate the user's Layer 2 messages and complete the access control and forwarding of user-related messages. The user service information table is also stored on the BRAS, which is used to control the service according to the data in the table. Therefore, in order to achieve high service reliability, the BRAS needs to back up and migrate the data in the user service information table. In addition, with specific networking and protocols, it can...

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Problems solved by technology

[0006] 1. The essence of this switching method is point-to-point switching. The two ports participating in the switching must be backed up, and the relevant configurations must be the same; using the above switching method, although N: 1 backup can also be achieved, it is actually N 1: The simple combination of 1 cannot realize the configuration and scheduling of each device at the same time. Therefore, in the case of a large number of backup resources, backup implementation is more complicated, difficult to manage, and poor maintainability

[0007] 2. BRAS supports dual-machine real-time hot backup, so there must be a process module to run real-time hot backup related protocols. The communication between this module and other modules (such as VRRP) also requires special communication services, but the communication services can provide It is only the information between ports or routes, and the basis for switching is limited. It does not take into account factors such as BRAS system failures. For example, the two machines are BRAS1 and BRAS2. Ports and information forwarding are normal, which does not provide a basis for switching, and switching is not performed at this time; further, load balancing in line with actual process conditions will not be considered

[0008] 3. There are many kinds of network devices and networking environments, and the implementation methods of achieving high service reliability are different in centralized networking and distributed networking. The above switching is only suitable for switching of large-capacity BRAS equipment, but for small-capacity distribution In the case of BRAS, it is difficult to accept the same amount of resources reserved, and multi-point decentralized planning and management are complicated tasks

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