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Message fragment sending method, device and network equipment

A packet fragmentation and packet technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as affecting system performance, excessively occupying CPU and memory, etc., to avoid system performance and reduce retransmission. Delay and improve efficiency

Inactive Publication Date: 2012-11-21
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide a method, device, and network device for sending message fragments, which are used to solve the problem of excessive CPU and memory bandwidth occupation caused by existing methods for transmitting message fragments that affect system performance The problem

Method used

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  • Message fragment sending method, device and network equipment
  • Message fragment sending method, device and network equipment
  • Message fragment sending method, device and network equipment

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Embodiment Construction

[0027] The specific implementation manners of a method, device, and network device for sending packets in fragments provided in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] The message fragmentation sending method provided by the embodiment of the present invention, such as figure 1 shown, including the following steps:

[0029] S101. Process the message delivered by the transport layer at the IP layer, and avoid fragmentation of the message during the processing;

[0030] S102. Transfer the message processed by the IP layer to the data link layer for corresponding processing;

[0031] S103. Send the message processed by the data link layer to the communication interface that sends the message;

[0032] S104, comparing the length value of the message processed by the data link layer with the value of the MTU of the interface; if the length value of the message processed by the data link layer...

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Abstract

The invention discloses a message fragment sending method, device and network equipment. The method comprises the following steps: processing a message transferred from a transmission layer at an IP (Internet protocol) layer, wherein fragmentation operation is avoided from being carried out on the message in the processing process; processing the message processed at the IP layer at a data link layer, and delivering the message to a communication interface sending the message; comparing the length value of the message processed at the data link layer with a value of the MTU (maximum transmission unit) of the interface; and if the length value is greater than the value of the MTU, fragmenting the message processed at the data link layer according to the value of the MTU and sending throughthe communication interface. Compared with the prior art, the invention has the advantages that the flow of fragmenting and sending a relatively long message is simplified, and the problem that the system performance is influenced due to the excessive occupation of a CPU (central processing unit) and storage bandwidth by the fragments at the IP layer is avoided.

Description

technical field [0001] The invention relates to the technical field of computer network communication, in particular to a method, device and network equipment for message fragmentation sending. Background technique [0002] Fragmentation means that an IP data packet is divided into several IP fragmented packets for transmission, and then the receiving end will reassemble the IP packet according to the received fragmented packets. Because each physical network device interface generally specifies the maximum length of a link layer data frame, which is called a maximum transmission unit (Maximum Transmission Unit, MTU). In fact, when the IP protocol works, if the total length of the IP data field and the IP frame header exceeds the value of the MTU, the data packet will be divided into several fragmented packets for transmission, and will be reassembled in the target system. Fragmentation reassembly solves the problem of heterogeneous network data transmission, but it also in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L47/40
Inventor 徐欣
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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