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Data transmission method and network equipment

A technology of network equipment and transmission method, which is applied in the field of data transmission method and network equipment, can solve the problems of limited deployment of DS-Lite technology and high upgrade costs, and achieve the goals of avoiding large-scale upgrades, increasing the evolution rate, and reducing costs Effect

Inactive Publication Date: 2011-08-31
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide an implementation scheme of DS-Lite B4 function, to at least solve the above-mentioned problem of limited deployment of DS-Lite technology due to the high cost of network upgrade on the user side in the related art

Method used

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  • Data transmission method and network equipment
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  • Data transmission method and network equipment

Examples

Experimental program
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Embodiment 1

[0048] This embodiment provides an implementation solution of DS-Lite B4 Proxy, which solves the problem that home gateways or user terminals cannot be upgraded in the prior art, and can realize large-scale deployment of DS-Lite technology.

[0049] Figure 5 It is a schematic structural diagram of DS-Lite B4 Proxy according to Embodiment 1 of the present invention, such as Figure 5 As shown, the DS-Lite B4 Proxy (which can be realized by a certain network device) is deployed between the user's home gateway or terminal and the DS-Lite AFTR. The DS-Lite B4 Proxy can include the following functions:

[0050] B4 function: establish an IPv4 over IPv6 tunnel to AFTR, perform tunnel encapsulation and decapsulation;

[0051] DHCPv6 / ND Snooping function: When a user makes a DHCPv6 request, B4 Proxy will monitor the relevant data packets and record the VLAN ID and MAC address of the legal user;

[0052] Creation / management function of legal user record table: For users who have pass...

Embodiment 2

[0065] Figure 6 It is a schematic structural diagram of DS-Lite B4 Proxy (bridge type) according to Embodiment 2 of the present invention, as Figure 6 As shown, the user's home gateway is a bridging type and does not have a layer-3 function. For example, a layer-2 customer premise equipment (Customer Premises Equipment, referred to as CPE) device, the user terminal can be authenticated through IPoEv6 and obtain an IPv6 address prefix, or through DHCPv4 Obtain IPv4 address from B4 Proxy.

[0066] Figure 7 It is a schematic flow diagram of DS-Lite B4 Proxy (bridge type) according to Embodiment 2 of the present invention, as Figure 7 As shown, the workflow of the DS-Lite B4 Proxy is as follows:

[0067]Step S701, the user host (Host) performs IPv6 login, initiates IPv6 authentication / authentication and DHCPv6 request, and the authentication / authentication request reaches the B4 Proxy through the user access network, and then reaches the BRAS / BSR through the access converge...

Embodiment 3

[0076] Figure 8 It is a schematic structural diagram of DS-Lite B4 Proxy (routing type) according to Embodiment 3 of the present invention, as Figure 8 As shown, the user's home gateway is routing type and has three-layer functions. For example, a three-layer CPE device (that is, a home gateway HGW), the home gateway can be authenticated through IPoEv6 and obtain IPv6 address prefix information, or can be obtained from B4 Proxy through DHCPv4. To obtain a private IPv4 address, the user terminal obtains an IPv4 address from the home gateway through DHCPv4, and the home gateway performs IPv4NAT.

[0077] Figure 9 It is a schematic flow diagram of DS-Lite B4 Proxy (routing type) according to Embodiment 3 of the present invention, as Figure 9 As shown, the workflow of the DS-Lite B4 Proxy is as follows:

[0078] In step S901, the router-type home gateway (Home Gateway, HGW for short) performs IPv6 login, initiates IPv6 authentication / authentication and DHCPv6 request, and t...

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Abstract

The invention discloses a data transmission method and network equipment. The method comprises the following steps that: the network equipment positioned between a dual stack (DS)-Lite address family transition router element (AFTR) and a home gateway or a user terminal establishes an Internet protocol version 6 (IPv6)-based Internet protocol version 4 (IPv4) tunnel from a user side to the AFTR; and the network equipment performs tunnel encapsulation on an IPv4 data packet from a user access network, transmits the encapsulated IPv4 data packet to an IPv4 network, performs decapsulation on an IPv6 data packet from an IPv6 network, and transmits the decapsulated IPv6 data packet to the user side to realize a DS-Lite B4 function. By the data transmission method and the network equipment, the large-scale upgrading of the home gateway or the user terminal is avoided, the DS-Lite technology deployment cost of an operator is reduced, and the evolution rate of the IPv6 network is increased.

Description

technical field [0001] The invention relates to the communication field, in particular to a data transmission method and network equipment. Background technique [0002] Currently, the evolution technology from Internet Protocol version 4 (Internet Protocol version 4, referred to as IPv4) to Internet Protocol version 6 (Internet Protocol version 6, referred to as IPv6) is a hot research topic in the field of communication standards. As the Internet Assigned Numbers Authority (IANA) / Regional Internet Registry (Regional Internet Registry, RIR) unassigned public IPv4 addresses are increasingly exhausted, network IPv6 evolution is imminent, and operators are actively discussing Low-cost IPv6 deployment solution. However, for a long time, the network IPv6 evolution has not been successful, and the progress is not great. [0003] figure 1 is a schematic diagram of the technical mechanism of DS-Lite according to related technologies, such as figure 1 As shown, the lightweight d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L29/12H04L45/741
Inventor 牛启波王军宋军郑林峰
Owner ZTE CORP
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