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Message transmission method and device

A message transmission and message technology, applied in the field of communications, can solve the problems of inability to encapsulate labels, limit the number of labels, and inability to forward messages, and achieve the effect of reducing the number of segment routing labels

Active Publication Date: 2020-01-03
北京华三通信技术有限公司
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Problems solved by technology

[0005] However, the number of labels encapsulated in the message is limited. For example, a maximum of 3 labels can be encapsulated in the message. Once the number of labels constituting the segment route of the standby path exceeds 3, the packet corresponding to the equipment path cannot be encapsulated in the message. All the labels, so that the packet cannot be forwarded correctly through the label

Method used

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  • Message transmission method and device

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Embodiment Construction

[0070] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, rather than limiting the embodiments of the present application. The singular forms of "a", "said" and "the" used in the embodiments and claims of this application are also intended to include plural forms, unless the context clearly indicates otherwise. As used herein, the term "and / or" is meant to include any and all possible combinations of one or more of the associated listed items.

[0071] It should be understood that although the embodiments of the present application may use terms such as first, second, and third to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the embodiments of the present application, first information may also be called second information, and simi...

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Abstract

The embodiment of the present application provides a message transmission method and device, the method includes: obtaining the first message, and determining the forwarding entry corresponding to the first message; the forwarding table includes the main path forwarding entry and the standby path Publication item, the outgoing interface included in the standby path forwarding table item is the tunnel identifier of the TE tunnel; if the main path corresponding to the main path forwarding table item fails, and the second node is not the destination node corresponding to the destination address included in the first message, Then obtain the section routing label pointing to the destination node on the second node and the tunnel label corresponding to the TE tunnel from the standby path forwarding table item; add the section routing label and the tunnel label in the first message to obtain the first Second message: sending the second message to the second node through the TE tunnel corresponding to the tunnel identifier, so that the second node uses the segment routing label to send the second message to the destination node. Through the technical solution of the embodiment of the present application, the message can be correctly forwarded through the standby path.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a message transmission method and device. Background technique [0002] Segment routing (Segment Routing, SR) adopts the source path selection mechanism. The source node sets the Segment Identifier (Segment Identifier, SID) of the segment (Segment) to be forwarded by the source node in advance. The SID is represented by a label. When the message passes through the network node When , the network node forwards the message according to the label. [0003] At present, in order to ensure the reliability of transmission, a primary path and a backup path exist between the source node and the destination node. When the main path is normal, the packet is sent to the destination node through the main path. When the main path fails and the standby path does not fail, the packet is sent to the destination node through the standby path. [0004] S...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/721H04L12/711H04L12/46H04L45/247
Inventor 叶金荣
Owner 北京华三通信技术有限公司
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