A Network Debugging Method Based on Packet Tracing

Abstract

The invention discloses a network debugging method based on message tracking. The dispatching center unit needs to record the content of the message, the name of the forwarding device, and the ID of the message passing through each message forwarding device, whether it is in the receiving state or in the sending state. Value and TOS value, but also record the state of the message. The present invention facilitates the monitoring and processing of messages in the later stage, and can quickly screen out faulty message forwarding devices.

Description

technical field [0001] The invention relates to the technical field of network message transmission, in particular to a network debugging method based on message tracing. Background technique [0002] The popularity of the Internet and the wave of cloud computing make us increasingly inseparable from the network environment. With the rapid development of the mobile Internet, various applications and services emerge in an endless stream. Application developers and service providers need to quickly implement their projects or products. In traditional IDC data centers, they generally need to arrange their own or rent server equipment and also It is necessary to build a complex network by yourself, which will definitely take a lot of time and is very error-prone, and it is not easy to expand and achieve disaster recovery. [0003] In the classic network, users actually lack network management capabilities on the cloud. The user has a virtual server of the classic network, and t...

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Problems solved by technology

[0004] The network system in cloud computing generally has multiple network devices with different roles working together to provide different combinations of network functions. Usually, the message enters from a certain entrance of the network system and is sent out from a certain exit to complete a specific network function. , such as NAT address translation access to the public network, etc., because different roles in the network system work together, but for users, the network system is like a black box, and it is inconvenient to debug and find out the cause of the problem when a network problem occurs location, so it is necessary to provide a multi-node network system debugging method

[0005] At present, there are tcpdump and traceroute related techniques, but this kind of technology has obvious disadvantages, tcpdump can only be executed on a single device to observe the receiving and sending of messages on this device, but for There is no intuitive information about the receiving and sending of messages in the entire multi-node network system, while traceroute mainly detects the network nodes that a message may pass through, but cannot detect that a message is passing through different networks. Changes that may occur when the node

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