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Route detection method and apparatus

A detection method and routing technology, applied in the field of communication, can solve the problem of not being able to actively access IPv4 hosts, and achieve the effect of reducing waste and ensuring normal operation.

Active Publication Date: 2018-01-05
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, DS-Lite only supports IPv4 hosts in the user network to actively access IPv4 hosts on the public network; IPv4 hosts on the public network cannot actively access IPv4 hosts in the user network

Method used

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  • Route detection method and apparatus
  • Route detection method and apparatus

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Embodiment Construction

[0047] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0048] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0049] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...

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PUM

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Abstract

The invention relates to a route detection method and apparatus. The method is applied to a B4 (Basic Bridging BroadBand) device in a DS-Lite (Dual Stack Lite) network. The method comprises the stepsof sending a route detection indication to a first AFTR (Address Family Transition Router), wherein the route detection indication is used for enabling the first AFTR to perform ICMP detection on a second host; and if receiving ICMP inaccessible information of the second host from the first AFTR, switching a message forwarding path from a first host to the second host from a first tunnel to a second tunnel. According to the route detection method and apparatus, the route detection indication is sent to the AFTR using the B4 device, such that the AFTR performs the ICMP detection on the host, and the B4 device can know that a route from the AFTR to the host is inaccessible if receiving the ICMP inaccessible information, returned by the AFTR, of the host, and can automatically switch primaryand standby AFTRs; the communication is guaranteed to proceed normally and the waste to a system resource is reduced.

Description

technical field [0001] The present disclosure relates to the technical field of communications, and in particular, to a route detection method and device. Background technique [0002] DS-Lite (Dual Stack Lite, lightweight dual protocol stack) technology combines IPv4over IPv6 (IPv4 across IPv6) tunnel technology and NAT (Network Address Translation, Network Address Translation) technology. DS-Lite technology uses tunneling technology to realize the IPv4 (Internet Protocol Version 4, Internet Protocol Version 4) network isolated through IPv6 (Internet Protocol Version 6, Internet Protocol Version 6) network connection, and uses NAT technology to realize different user network sharing The same IPv4 address space slows down the exhaustion of IPv4 addresses. [0003] figure 1 A schematic diagram showing a DS-Lite networking diagram in the related art. Such as figure 1 As shown, the DS-Lite network mainly includes DS-Lite tunnels, B4 (Basic Bridging Broadband, basic bridging...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/711H04L12/749H04L12/26H04L29/12H04L45/247H04L45/741
Inventor 郭威王伟
Owner XINHUASAN INFORMATION TECH CO LTD