Linux kernel based media proxy implementation method

Abstract

The invention provides a linux kernel based media proxy implementation method. Media proxy is arranged in linux kernel to be implemented, thereby omitting a flow of copying media packets between a linux system kernel and an application layer back and forth; and distributive communication management is implemented among the media proxy, and the media proxy is installed in multiple devices, thereby achieving a function of dynamically expanding media forwarding performance. According to the linux kernel based media proxy implementation method, the media forwarding performance is remarkably improved, processing pressure of IPPBX is reduced, performance of media forwarding, recording, three-party communication, audio media coding and decoding conversion and the like is improved, and hardware upgrading costs of the IPPBX is reduced in disguised form.

Description

technical field [0001] The invention relates to the technical field of communication equipment, in particular to a method for realizing media proxy based on the Linux kernel. Background technique [0002] In the existing communication network, the use of ippbx (Internet telephone exchange) has been very popular. Many corporate offices use ippbx to replace the traditional pbx (Private Branch Exchange, user-level exchange) to realize audio or audio and video communication, which greatly improves Improve office efficiency and reduce communication costs. [0003] At present, the mainstream communication core network access is undertaken by equipment such as ippbx and IAD (Integrated Access Device). And because of the communication pressure, theories such as active and standby systems, load balancing, independent media servers, and separation of business control and call control are proposed. It can be said that the service concept of communication integration is only reflected ...

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Problems solved by technology

[0004] In the existing ippbx system, open-source pbx, such as freeswitch, a soft-switch solution for telephones, opensips, a mature open-source SIP server, freepbx, a graphical interface used to control the application program Asterisk, and the open-source tool YATA are all in the application layer To realize the media forwarding function, the media packet needs to be sent from the kernel protocol stack to the application layer, and the media forwarding module of the application layer modifies the destination port and ip according to the specific call, and then sends it back to the kernel protocol stack to be forwarded to the peer phone; the media packet is processed The copy process from the kernel to the application layer, and then from the application layer to the kernel, consumes a lot of system and cannot meet the needs of high-concurrency media services

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