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Method, device and system for detecting path mtu

A path and preset path technology, applied in the network field, can solve problems such as message sending failures

Active Publication Date: 2020-02-21
博兴兴博投资有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

Moreover, in the subsequent process, the source virtual machine may still send packets with a length greater than the MTU of the path between the source virtual machine and the destination virtual machine, resulting in failure to send packets
Therefore, it is necessary to propose a method to detect the path MTU between the source virtual machine and the destination virtual machine to solve the problem of message sending failure

Method used

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  • Method, device and system for detecting path mtu
  • Method, device and system for detecting path mtu
  • Method, device and system for detecting path mtu

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Embodiment Construction

[0099] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0100] Figure 1A is a schematic structural diagram of a network system provided by an embodiment of the present invention, see Figure 1A , the network system includes a source virtual machine 101 , a source switch 102 , a destination virtual machine 103 and a destination switch 104 . Wherein, the source virtual machine 101 is connected to the source switch 102, and the destination virtual machine 103 is connected to the destination switch 104. The source switch 102 and the destination switch 104 are connected through multiple paths, and each path includes at least one intermediate switch.

[0101] The source switch 102 is configured to send at least one detection message according to the address of the destination switch 104 and the ...

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Abstract

The invention discloses a method, device and system for detecting path MTU, belonging to the field of network technology. The method includes: sending at least one detection message according to the address of the destination switch and the preset path MTU, and obtaining at least one response message corresponding to the at least one detection message; according to the at least one response message, Determine the first path MTU; determine a second path MTU between a source virtual machine connected to the source switch and a destination virtual machine connected to the destination switch according to the first path MTU and a preset encapsulation length . The present invention learns by sending at least one detection message, thereby detecting the first path MTU between the source switch and the destination switch, and determining the second path MTU between the source virtual machine and the destination virtual machine, according to the second The path MTU controls the length of the packet sent by the source virtual machine, avoiding the problem of packet sending failure and improving the success rate of sending packets.

Description

technical field [0001] The present invention relates to the field of network technology, in particular to a method, device and system for detecting a path maximum transmission unit (English: Maximum Transmission Unit, MTU for short). Background technique [0002] The path MTU refers to the maximum packet length that can pass on the path between the source device and the destination device. In practical applications, in response to various events, the path between the source device and the destination device may be dynamically modified, and the path MTU will change accordingly. [0003] The switches in the virtualized network are configured with tunnel endpoints, and tunnel intercommunication with other switches is realized through the configured tunnel endpoints, and the communication between any two virtual machines is realized through the tunnels between the connected switches, that is, any The path between two virtual machines consists of tunnels between switches. Then,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/805H04L47/36
CPCH04L47/36
Inventor 张宪忠姬玲玲
Owner 博兴兴博投资有限公司
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