Path tracking method and device, equipment and computer readable storage medium

A path tracking and computer program technology, applied in the field of communication, can solve problems such as unfavorable network information path investigation, achieve the effect of maintaining and solving network layout problems, facilitating investigation, and facilitating network layout problems
CN112995025AActive Publication Date: 2021-06-18HANGZHOU DPTECH TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU DPTECH TECH
Publication Date
2021-06-18

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Abstract

The invention provides a path tracking method, which comprises the following steps: in the process that a client performs path tracking by sending a tracking message with a TTL value of N, if a first network device receives the tracking message, caching an incoming interface address for receiving the tracking message on the first network device; and when the first network equipment determines that the equipment is not the destination address for path tracking and the TTL value is reduced to 0, generating a TTL time-out message, enabling the TTL time-out message to carry the cached information of the incoming interface address, and sending the TTL time-out message to the client. Therefore, before the TTL time-out message is sent to the client, the source address carried by the TTL time-out message is the incoming interface address of the tracking message received by the TTL time-out message, so that troubleshooting of a networking information path is facilitated, and maintenance and solving of a network layout problem are facilitated.
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Description

technical field

[0001] The present application relates to the technical field of communications, and in particular to a path tracing method, device, equipment and computer-readable storage medium. Background technique

[0002] Tracert generally refers to trace routing. The Tracert command uses the IP Time To Live (TTL) field and the Internet Control Message Protocol (Internet Control Message Protocol, ICMP) error message to determine the route from a host to other hosts on the network. .

[0003] First, Tracert sends an IP packet with a TTL of 1 to the destination. When the first router on the path receives this packet, it will decrement the TTL by 1. At this time, the TTL becomes 0, so the router will This data packet is lost, and an ICMP time exceeded message is sent back (that is, a TTL time exceeded message). After receiving this message, Tracert knows that the router exists on this path, and then Tracert sends another data packet with a TTL of 2 , used to discover the...

Claims

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