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A vxlan message fragmentation method and device

A technology of message fragmentation and message, which is applied in the field of communication, can solve the problem of oversized message discarding and achieve the effect of normal forwarding

Active Publication Date: 2022-01-25
NEW H3C TECH CO LTD
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Problems solved by technology

[0003] In view of this, this application provides a VXLAN packet fragmentation method and device to solve the problem that oversized packets may be discarded during forwarding in a VXLAN networking

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  • A vxlan message fragmentation method and device
  • A vxlan message fragmentation method and device
  • A vxlan message fragmentation method and device

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Embodiment Construction

[0019] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0020] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

This application provides a VXLAN packet fragmentation method and device, the method is: the local VTEP judges whether the length of the packet after adding VXLAN encapsulation to the packet needs to be forwarded through the VXLAN tunnel exceeds the MTU of the VXLAN tunnel ; If it exceeds, first fragment the message, and then add the same VXLAN encapsulation to each message obtained by fragmentation. Through the above method, each fragmented packet can have the same VXLAN header, so that each fragmented packet after VXLAN encapsulation is sent from the local VTEP, can reach the peer VTEP through the P device, and the peer VTEP Fragmented packets are decapsulated by VXLAN and then forwarded to the destination VM. Finally, the destination VM reassembles the decapsulated fragmented packets to obtain the original super-large packets. Normal forwarding.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for fragmenting VXLNA packets. Background technique [0002] The so-called fragmented message refers to the maximum length of each data frame that is passed through at the physical layer. When the IP (Internet Protocol, Internet Protocol) layer receives an IP message and needs to send it, it must first query the value of the MTU (Maximum Transmission Unit, maximum transmission unit) of the outgoing interface, and compare the MTU with the length of the data message , if the packet length exceeds the MTU, the IP packet needs to be fragmented. VXLAN (Virtual eXtensible LAN, extensible virtual local area network) packets may also be fragmented due to oversized packets when they are forwarded via IP. Contents of the invention [0003] In view of this, the present application provides a VXLAN packet fragmentation method and device to solve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/46H04L47/36
CPCH04L12/4633H04L47/36H04L69/22
Inventor 张帝民
Owner NEW H3C TECH CO LTD
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