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Message transmitting method and device

A sending method and technology of a sending device, applied in the field of data communication, can solve the problem of not being able to provide load sharing at the tunnel layer, and achieve the effect of improving the sending efficiency

Inactive Publication Date: 2011-07-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

In addition, since the forwarding path of encapsulated packets cannot be known, the GRE tunnel cannot provide load sharing at the tunnel layer.

Method used

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  • Message transmitting method and device

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Embodiment Construction

[0033] The technical solutions of the embodiments of the present invention will be further described in detail below through the accompanying drawings and embodiments.

[0034] The message sending method and sending device of the embodiment of the present invention can have the ability to select a general routing encapsulation (GRE) tunnel. When necessary, the GRE tunnel can be selected through configuration, and when there are multiple paths in the GRE tunnel, pass Next hop address information and outgoing interface information are used to select a specific transmission path.

[0035] figure 2 It is a topological diagram of a method for sending a message in an embodiment of the present invention, such as figure 2 As shown, the operator network includes a GRE tunnel T1, two network devices at both ends of the tunnel, and core routers P1 and P2. Preferably, the two network devices at both ends of the tunnel are edge routers PE1 and PE2, respectively. The virtual private networks V...

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Abstract

The embodiment of the invention relates to a message transmitting method and a message transmitting device. The message transmitting method comprises the following steps of: receiving an original message; querying a preconfigured generic routing encapsulation (GRE) forwarding list item comprising the next hop address information and out-interface information, and acquiring the next hop address information and out-interface information of a GRE tunnel for transmitting the original message; encapsulating the original message into a GRE message; encapsulating the GRE message into an external protocol message; and selecting a transmission path in the GRE tunnel according to the next hop address information and out-interface information, and transmitting the external protocol message through the transmission path. Therefore, in the message transmitting method and the message transmitting device, the transmission path is selected in the GRE tunnel according to the next hop address information and out-interface information, so that the transmission path of the message can be autonomously selected. Therefore, various paths in the GRE tunnel can be reasonably configured and effectively utilized, and message transmitting efficiency is improved.

Description

Technical field [0001] The embodiment of the present invention relates to the field of data communication, in particular to a method and device for sending a message. Background technique [0002] The Generic Routing Encapsulation (GRE) protocol is to encapsulate certain network layer protocols, such as Internet Protocol (IP) and Internet Protocol version 6 (Internet Protocol version 6, IP6) data packets, so that These encapsulated data messages can be transmitted in another network layer protocol (such as IP). GRE uses a tunnel (Tunnel) technology, which is the third layer tunneling protocol of a virtual private network (Virtual Private Network, VPN). [0003] Tunnel is a virtual point-to-point connection, which can be regarded as a virtual interface that only supports point-to-point connections. It provides a path so that encapsulated data packets can be transmitted on this path, and the data packets are encapsulated and encapsulated at both ends of a tunnel. Decapsulate. For ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56
CPCH04L12/6418H04L45/00H04L12/4633H04L45/22
Inventor 刘雁飞林琦
Owner HUAWEI TECH CO LTD
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