A method and device for realizing network remote disaster recovery

Abstract

The invention discloses a network disaster tolerance achievement method and device, and relates to the technical field of communication. The method and device are used for solving the problem of unbalanced load between multiple P-CSCF devices. According to the technical scheme, priority of the P-CSCF devices is adjusted according to obtained processing weights of the P-CSCF devices, and then a host name list of the P-CSCF devices is generated according to the priority, so that an SBC carries out service allocation according to the host name list, a roaming user preferentially has access to the P-CSCF device with a small load when having access to the P-CSCF devices, and loads among the P-CSCF devices are balanced. The method and device are mainly used in achievement procedures of network disaster tolerance.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for implementing network remote disaster recovery. Background technique [0002] At present, IMS (Internet Protocol Multimedia Subsystem, IP Multimedia Subsystem) has become the core of network and service integration. In order to realize communication services in this network more conveniently, remote disaster recovery technology is proposed. Remote disaster recovery technology is a technology in which two or more devices deployed in different regions are configured as mutual disaster recovery technology, that is, when a device fails, the remaining devices will take over the business of the failed device. [0003] P-CSCF (Proxy Call Session Control Function) equipment is one of the main core network elements of the IMS network, and is the entry point of the IMS network, capable of receiving and forwarding service requests. The IMS system accesses the ro...

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Problems solved by technology

[0004] When implementing remote disaster recovery through the above method, the inventor found the following problems in the prior art: the above disaster recovery technology is likely to cause uneven load among multiple devices, especially for P-CSCF network elements, because on the one hand, the user planning At the same time, the division of the two regions cannot be completely balanced, and as time goes by, the differences in the development of users in the two regions will easily lead to an increasing load gap between the main equipment and the backup equipment.

On the other hand, when there may be a large number of roaming users in a certain area in a short period of time, such as holding large-scale events such as the Olympic Games, and the roaming users in the IMS network access the P-CSCF of the visited network. As a result, both roaming users and local users have to access from the local P-CSCF equipment, which will cause a certain P-CSCF equipment in the local area to be overloaded and easily cause local P-CSCF equipment failures. Therefore, a A new network remote disaster recovery method to solve the problem of unbalanced load among multiple sets of P-CSCF equipment, thereby reducing the failure rate of equipment

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