System and method for seamless disaster-containing switching next generation network medium gateway

Abstract

The present invention discloses a system and a method for the seamless disaster recovery switching of a network media gateway of next generation. The method comprises that when a disaster recovery occurs on a first media gateway controller, a media gateway sends an access request to a communicatively connected second media gateway controller, and reports the state of a circuit of the context; thecircuit state and a context reply request are configured by the second media gateway controller, which distributes a detection event to the media gateway so as to complete the seamless disaster recovery switching of the media gateway. Since the fact that the media gate uses register means with the context for the circuit in a talking state when registering on the second media gateway controller is imported, the facts that the talking before the occurrence of the disaster is uninterrupted and the original calls are completely controlled by the second media gateway controller after the success of the switching are realized. The second media gateway controller completely controls the call state and the resource occupied by the call on the media gateway so as to achieve the aim of the seamless disaster recovery switching of the original talking. Not only the software development cost is saved, but also the equipment investment cost is saved.

Description

technical field [0001] The present invention relates to the next generation network communication system and business field, more specifically, to a system and method for seamless disaster recovery switching of media gateways under the next generation network. Background technique [0002] The next generation communication network NGN (Next Generation Network) is based on the soft switch as the core, which can provide a comprehensive and open network architecture based on packet technology including voice, data, video and multimedia services, and represents the development direction of the current communication network. [0003] In the NGN (Next Generation Network, hereinafter referred to as NGN) network, the physical media gateway controller MGC (Media Gateway Controller) used for call control functions and the physical media gateway MG (Media Gateway Controller) used for media stream bearer conversion ) are different network elements in an IP (Internet Protocol) network in...

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Problems solved by technology

[0007] Under the disaster recovery architecture of the NGN network, for example, in the application scenario of the access gateway AG, if there is no data synchronization mechanism between the first media gateway controller MGC-1 and the second media gateway controller MGC-2, the second media gateway The controller MGC-2 cannot obtain the real-time call data of the access gateway AG. When the first media gateway controller MGC-1 fails, or the first media gateway controller MGC-1 and the access gateway AG In the case of a connection failure, the connection between the access gateway AG and the first media gateway controller MGC-1 is interrupted. When registering with the second media gateway controller MGC-2, the access gateway AG adopts a normal registration process at this time, and the All circuits are set to the idle state, and a new registration is initiated to the second media gateway controller MGC-2, so that the original call is affected, or the resources of the call are still occupied, and even the termination resource is hanged

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