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A method and device for determining path information

A technology of path information and determination method, which is applied in the field of communication, can solve the problem of not being able to know the IP address of node 2, and achieve the effect of rapid positioning

Active Publication Date: 2021-12-24
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Based on this, node 1 cannot know the IP address of node 2. If there is a fault between node 1 and node 3, node 1 cannot know whether there is a fault between node 1 and node 2 or between node 2 and node 3

Method used

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  • A method and device for determining path information
  • A method and device for determining path information
  • A method and device for determining path information

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Embodiment Construction

[0028] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, rather than limiting the present application. As used in this application and the claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0029] It should be understood that although the embodiments of the present application may use terms such as first, second, and third to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second ...

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PUM

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Abstract

The present application provides a method and device for determining path information, the method comprising: receiving a first trace routing message sent by an edge node, and the first trace route message is used to determine a path to be detected between a source node and a destination node path information; determine the gateway node for establishing a tunnel between the edge node and the destination node; generate a second traceroute message, the source address of the second traceroute message is the address of the edge node, the The destination address of the second traceroute message is the address of the gateway node; the second traceroute message is sent to the edge node, so that the edge node sends the second traceroute message by querying the common routing table Tracing a route message: determining the path information of the path to be detected according to the response result of the second trace route message. Through the technical solution of the present application, it is possible to detect whether there is a fault in the path to each network node, so that the operation and maintenance personnel can quickly locate the fault point.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for determining route information. Background technique [0002] The Traceroute function is used to locate all network nodes between the source node and the destination node. When a fault occurs, the Traceroute function can be used to analyze the faulty network node. [0003] For example, node 2 exists between node 1 (source node) and node 3 (destination node), then node 1 can send message 1, the time to live (Time To Live, TTL) of message 1 is 1, and the destination IP address is The IP address of node 3, and the destination port is a port number that is not used by all applications, such as 3333. [0004] After receiving message 1, node 2 decreases the TTL by 1 and becomes 0, and node 2 sends an Internet Control Message Protocol (Internet Control Message Protocol, ICMP) error message to node 1, and the ICMP error message carries node ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/26
CPCH04L41/0677H04L43/10
Inventor 樊超王海
Owner NEW H3C TECH CO LTD