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Method and device for sending data message in IPv6 network

A technology of data message and sending method, applied in the field of communication, can solve the problem of data message discarding and the like

Active Publication Date: 2021-09-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] To sum up, in the current IPv6 network, it may be because the length of the sent data packet exceeds the length of the MTU supported by the interface of the network device on the path, and the data packet before the PMTU of the path is not detected at the sending end of the data packet been discarded all the time

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  • Method and device for sending data message in IPv6 network
  • Method and device for sending data message in IPv6 network
  • Method and device for sending data message in IPv6 network

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Embodiment Construction

[0107] The embodiment of the present invention provides a method and device for sending a data message in an IPv6 network, which is used to solve the problem that in the current IPv6 network, the data message may be discarded before the PMTU of the path is detected at the sending end of the data message The problem.

[0108] In the embodiment of the present invention, before the HOST node of the sending end in the IPv6 network does not detect the PMTU of the path, it sends data packets on the path according to the minimum MTU specified by the IPv6 protocol; The PMTU that detects the path sends subsequent data packets on the path.

[0109] Before the PMTU of the path is detected, the minimum MTU specified by the IPv6 protocol is used to send the data packet. The minimum MTU can ensure that the data packet can pass through the network device with any MTU on the path, such as a router, thus ensuring The data message sent can be received by the destination receiver.

[0110] Bel...

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Abstract

The invention relates to the technical field of communication, in particular to a method and a device for sending a data message in an internet protocol version v6 (Internet Protocol version 6) network, which are used for solving the problem that the data message may be discarded all the time before the PMTU of a path is not detected in the current IPv6 network. The method provided by the embodiment of the invention comprises the following steps of: sending a data message according to a minimum MTU specified by an IPv6 (Internet Protocol Version 6) before a PMTU of a path is not detected; and after the PMTU of the path is detected, sending a subsequent data message on the path according to the PMTU of the detected path. Before the path PMTU is detected, the subsequent data message is sent by using the minimum MTU specified by the IPv6 protocol, so that the data message can be ensured to pass through the network equipment with any MTU on the path, and the data message can be ensured to be received by a destination receiving end.

Description

technical field [0001] The invention relates to the field of communication technologies, in particular to a method and device for sending data messages in an IPv6 network. Background technique [0002] In the Internet Protocol version 6 (Internet Protocol version 6, IPv6) network, in order to improve the forwarding efficiency of network devices, intermediate devices such as routers no longer have the fragmentation function. For the maximum transmission unit (Maximum Transmission, MTU) length data packets are directly discarded, and the fragment reassembly function of data packets can only be completed at the host (HOST) node at the sending end. In other words, only the HOST node at the sending end can fragment the data packet. Therefore, the HOST node at the sending end needs to detect the path maximum transmission unit (Path MaxTransmission Unit, PMTU) of the path, so as to determine the length of the data packet to be sent. [0003] A current process of sending data pack...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/749H04L12/751H04L29/06H04L12/26H04L47/36H04L45/02H04L45/741
CPCH04L69/166H04W28/065H04L47/36H04L9/40H04L45/02H04L43/10H04L43/12H04L69/16H04L47/365H04L45/741
Inventor 薛万
Owner HUAWEI TECH CO LTD