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Method of detection and maintenance of PPP link

A link and maintenance point technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve unreliable problems and achieve high reliability

Inactive Publication Date: 2008-07-02
BELLNET TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For similar reasons, using PPP's own LCP Echo Request to maintain and detect PPP links is also unreliable

Method used

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  • Method of detection and maintenance of PPP link

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Embodiment Construction

[0027] The meaning of DNS (Domain Name System) is the domain name management system, and it can also refer to the domain name resolution server. Its role is to provide domain name resolution services. The so-called domain name resolution service is to convert domain names into IP addresses that can be recognized by the network. For example: when surfing the Internet, entering the domain name www.sohu.com will be automatically converted to the IP address 61.135.132.6 by DNS. The reason for using domain name resolution service is because it is easier for people to remember the name, such as www.sohu.com, than the IP address 61.135.132.6. Each network operator that provides network access services will provide the domain name resolution service through a domain name resolution server, which may be referred to as DNS service for short.

[0028] Since every network operator will provide DNS service, the following method can be used to detect and maintain the PPP link: sending DNS ...

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Abstract

This invention discloses one method to test and sustain point to point agreement PPP linkage, which comprises the following steps: a, customer end sends DNS demands to partner end through PPP interface; b, judging whether the partner end respond to the said DNS demands; if yes, then judging the PPP linkage is normal; if not, then judging PPP linkage is lost and starting re-linkage process.

Description

technical field [0001] The invention relates to a PPP (Point-to-Point Protocol, PPP for short) link, in particular to a method for detecting and maintaining a PPP link. Background technique [0002] PPP (Point-to-Point Protocol) is a link layer protocol designed for simple links such as transmitting data packets between equal units. The data communication link established using this link layer protocol is called PPP link. This link provides full-duplex operation and transmits data packets in order. Its main function is to establish a point-to-point connection and send data through dial-up or leased line. At present, PPP links have become a common solution for simple connections between various hosts, bridges and routers. It has the advantages of simplicity, user authentication capabilities, and IP allocation. It is currently the most widely used in wide area networks. One of the broad agreements. For example, family dial-up Internet access is to establish communication be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L29/06H04L12/56
Inventor 朱会莹
Owner BELLNET TECH