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IPv4 over IPv6 extension method of BGP protocol software

An extension method and software technology, applied in the field of router forwarding technology at the network layer

Inactive Publication Date: 2007-05-30
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the basic mechanism of 4over6 has potential routing loop problems in interconnected environments such as multi-point access and multi-path transmission.
In addition, since the 4over6 packet translation transmission has the characteristics of being transparent to the semantics of the upper layer protocol, the packet translation mechanism in the packet processing of the 4over6 mechanism has the possibility of transparent mutual access between IPv4 / v6 networks

Method used

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  • IPv4 over IPv6 extension method of BGP protocol software
  • IPv4 over IPv6 extension method of BGP protocol software
  • IPv4 over IPv6 extension method of BGP protocol software

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Embodiment Construction

[0029] The implementation of this module is to add codes related to 4over6 on the basis of Zebra's BGP protocol software. The reasons are: 1) Zebra's operating environment is the same as that of 4over6, which is Linux; 2) Zebra version 0.94 is relatively comprehensive, including the basic code of BGP-MP extension.

[0030] The secondary modules of BGP-MP in 4over6 can be divided into three modification modules and two interface modules:

[0031] ●Modify the message parsing constructor: add the parsing and construction process of the new identification value related to 4over6 of the BGP-MP attribute of the open message and the update message to the original code. See the next section for the specific message filling format.

[0032] ●Add an OAM command: just start the 4over6 function of BGP. 4over6 started at 4over6vif and its cancellation order (no 4over6 started at 4over6vif).

[0033] ●Interface between routing management and BGP protocol: use the Zebra protocol to add th...

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Abstract

This invention relates to router transfer technique field by IPv4 over IPv6 extending layer based on BGP agreement, which is characterized by the following: filling the relationship between user network IPv4 address and IPv6 address into expend property of the Update message and sending the each boundary router between them; otherwise storing the relationship into local router sealing list.

Description

technical field [0001] The IPv4 over IPv6 extension of the BGP protocol software belongs to the field of Internet technology, and in particular relates to the router forwarding technology of the network layer. Background technique [0002] With the rapid development and gradual maturity and wide adoption of IPv6 technology, the scale of IPv6 networks is gradually expanding. In order to promote network transition, accelerate the development of IPv6 networks, and promote the development of IPv6 and related technologies, some countries have built pure IPv6 backbone networks, such as the China Next Generation Internet Demonstration Project (CNGI: China Next Generation Internet). However, a large number of existing Internet applications and services still exist in the IPv4 network. Migrating such a large number of applications and services to IPv6 is by no means a task that can be completed in a short period of time. Therefore, IPv4 and IPv6 networks will coexist for a long time....

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/56
Inventor 吴建平崔勇徐明伟孟凡琦
Owner TSINGHUA UNIV