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Data forwarding method and system

A forwarding method and data technology, applied in the field of communication, can solve the problems of insufficient IPv4 application support and efficiency, and achieve the effect of reducing communication load and improving efficiency

Inactive Publication Date: 2014-02-26
HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, DS-Lite's support for IPv4 applications is not sufficient and efficient

Method used

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  • Data forwarding method and system
  • Data forwarding method and system
  • Data forwarding method and system

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Embodiment Construction

[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] like figure 1 Shown is an application scenario of the embodiment of the present invention. The source device 101 and the destination device 102 are communication nodes under the IPv6 network. The source device 101 and the destination device 102 communicate with the external network through the dual-stack DS-Lite gateway 103 .

[0039] An embodiment of the present invention provides a data forwarding method, taking the source device 101 as an example, such as figure 2 As shown, the method includes:

[0040] Step 201: generating and forwarding an Internet Protocol version 4 IPv4 datagram;

[0041] Wherein, the IPv4 data message carries an IPv4 private source Internet Protocol IP address, an IPv4 private source port numbe...

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PUM

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Abstract

The embodiment of the invention provides a data forwarding method and system. When source equipment generates and forwards an IPv4 (Internet Protocol version 4) message transmitted to destination equipment inside an IPv6 (Internet Protocol version 6) network, whether a corresponding mapping table item exists in an address mapping table of source equipment is queried first; and if the corresponding mapping table item exists, the source equipment can directly communicate with the destination equipment inside the IPv6 network through the corresponding mapping table, so that a processing load of a two-stack gateway is reduced and the communication efficiency is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data forwarding method and system. Background technique [0002] As Internet Protocol version 4 (Internet Protocol version 4, referred to as IPv4) addresses are about to be used up, Internet network devices and services are gradually transitioning to Internet Protocol version 6 (Internet Protocol version 6, referred to as IPv6). However, based on cost and practical considerations, the full deployment of IPv6 cannot be achieved overnight, and IPv4 and IPv6 will coexist for a long time. The transition from IPv4 to IPv6 has become a hot topic and development trend in the industry and academia. [0003] An important IPv6 transition issue is how to ensure that existing IPv4 applications can still be used in an IPv6 network environment. At present, many network operators have deployed or plan to deploy IPv6 networks to provide users with IPv6 network services. At the same time, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
Inventor 樊滑翔刘利锋
Owner HUAWEI DIGITAL TECH (CHENGDU) CO LTD