Method and device for obtaining path information of data message

Abstract

The present application discloses a method and equipment for obtaining path information of a data message. The method includes the following steps: the network device receives the data message transmitted in the network; the network device obtains the path from the source end to the destination end of the data message information, and the path information is: the total number of hops of routers that the data message passes through from the source end to the destination end or the time delay of the data message from the source end to the destination end. This application has the advantage of obtaining the path information of the data packet.

Description

technical field [0001] The present application relates to the field of communications, and in particular to a method and device for acquiring path information of data packets. Background technique [0002] A data packet is a data unit exchanged and transmitted in the network, that is, a data block to be sent by a station at one time. The data message contains the complete data information to be sent, its length is very inconsistent, the length is unlimited and variable, the data message is also the unit of network transmission, and will be continuously encapsulated into groups, packets, and frames for transmission during the transmission process. The way of encapsulation is to add some information segments, which are the data organized by the header in a certain format, such as message type, message version, message length, message entity and other information. [0003] In the solution of realizing the prior art, it is found that the prior art has the following technical pr...

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Problems solved by technology

[0004] The AQM (English full name: Active Queue Management, Chinese: Dynamic Queue Management) mechanism of network devices such as routers will perform packet loss processing to alleviate congestion when the network is congested. The current AQM mechanism mainly uses random discarding; TCP congestion control algorithm It is mainly to adjust the congestion window of the TCP flow so that the sending rate of the TCP is in the best matching state with the physical bandwidth of the network and the congestion situation. The current TCP congestion control algorithm mainly refers to the current sending rate and the current sending rate of the TCP flow when adjusting the congestion window. Packet loss, etc., but for network congestion, the path information of data packets (such as the number of hops of routers or RTT (full name in English: Round-Trip Time, Chinese: round-trip delay) value) is also a very important reference parameter, but The path information of the data packet cannot be obtained in the prior art

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