Data management methods for use in a network system and network systems using the same

Abstract

Data management methods for use in a network system including at least first, second and third network terminal devices and traversal server are disclosed. First and second network terminal devices can traverse at least one NAT router and / or firewall to establish a connection channel between each other for data access through traversal server. The method includes the steps of: receiving first packet with first protocol format from first network terminal device; determining whether to perform protocol conversion operation; if so, obtaining a list of available network terminal devices, assigning first network terminal device from obtained list, converting first packet with first protocol format into second packet with second protocol format that is decodable by second network terminal device, and sending second packet to second network terminal device such that second network terminal device can obtain content of first packet by decoding second packet upon reception of second packet.

Description

technical field [0001] The present invention relates to a data management method of a network system, in particular to a data management method capable of penetrating network address translation routers and firewalls between network terminal devices with different packet protocol formats. Background technique [0002] In recent years, due to the vigorous development of network applications, the popularization of networks, the increase of bandwidth and the progress of voice compression technology, the technology of Internet voice transmission (Voice over IP, referred to as VoIP) has developed rapidly, enabling Internet users to transmit real-time voice (Voice) and image (Video) and other multimedia information. When using VoIP, both the receiving and sending ends must fill in the IP address of the computer used, so that the two parties can be connected. However, there may be various types of firewalls and network address translators in the actual network. When the network te...

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Problems solved by technology

[0005] Since the aforementioned protocol conversion server is usually installed remotely and must simultaneously perform a large number of protocol conversion operations from multiple network terminal devices, the routing path (routing path) through the server is usually long, which is likely to cause transmission delay, packet loss, and failure to process in time Opportunity

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