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A method, device and system for determining the maximum transmission unit pmtu

A technology of maximum transmission unit and network equipment, which is applied in the field of data communication and can solve problems such as increasing the workload of the transmission layer and application layer

Active Publication Date: 2022-05-20
MAIPU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The limitations of the above solutions undoubtedly increase the interaction of various protocols and data traffic between the transport layer and the application layer. In the process of interaction between the two parties, they still need to negotiate the MTU on the unidirectional path separately, thus bringing about the problems of each network in the system. The additional performance overhead of road equipment increases the workload of the transport layer and application layer

Method used

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  • A method, device and system for determining the maximum transmission unit pmtu
  • A method, device and system for determining the maximum transmission unit pmtu
  • A method, device and system for determining the maximum transmission unit pmtu

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] It should be noted that in the embodiments of the present invention, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists.

[0038]In addition, the source in the embodiment of the present invention is the initiator of the data message, and the destination is th...

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Abstract

Embodiments of the present invention provide a method, device, and system for determining a maximum transmission unit PMTU, including: receiving a data message sent from a source end to a destination end, and according to the MTU of the receiving interface of the data message and the data message The MTU of the sending interface determines the first MTU, and the first MTU is the smallest MTU among the MTU of the receiving interface and the MTU of the sending interface, and the first MTU is determined based on the data message and the first MTU Two MTUs, the second MTU is the PMTU on the two-way path from the source end to the destination end, by determining the PMTU of the smallest two-way path in the data packet forwarding process, the two-way detection of the forwarding path is realized, so that the transport layer The application layer and the application layer no longer negotiate their own MTU, which greatly reduces the workload of the transport layer and application layer.

Description

technical field [0001] The present invention relates to the technical field of data communication, in particular to a method, equipment and system for determining a maximum transmission unit (PMTU). Background technique [0002] The maximum transmission unit (English name: Maximum Transmission Unit, referred to as MTU) refers to the maximum data packet size that can be passed on a certain level of a communication protocol. Each network device in the system has an MTU that satisfies its own interface attributes. A packet may need to pass through multiple network devices that forward the data packet on the path from the source to the destination. Since each network device may have a different MTU, and the smallest MTU on this path is the maximum transmission path of this path. Unit (English name: Path Maximum Transmission Unit, referred to as: PMTU). [0003] In order to reduce the processing pressure of the network equipment that forwards data packets and make reasonable use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L47/36
CPCH04L47/36
Inventor 陈可
Owner MAIPU COMM TECH CO LTD