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Packaging retransmission method of message in network communication

A technology of network communication and forwarding method, which is applied in the field of encapsulation and forwarding of messages in network communication, which can solve problems affecting the message processing efficiency of the main control board, increase message loss, and affect message forwarding efficiency, so as to improve forwarding efficiency , reduce packet loss, and save CPU resources

Inactive Publication Date: 2003-04-23
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0009] 1. If the message flow on the main control board is relatively large, it will seriously affect the forwarding efficiency of the message. At the same time, it will also affect the processing of other messages by the main control board due to the occupation of many central processing unit (CPU) resources of the main control board. processing efficiency
[0010] 2. GRE protocol messages are forwarded between the main control board and the interface board of the network device, which will greatly increase the probability of message loss due to communication failure

Method used

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  • Packaging retransmission method of message in network communication
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  • Packaging retransmission method of message in network communication

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Embodiment Construction

[0035] To forward GRE protocol packets through a tunnel, you need to create a tunnel interface first. A tunnel interface is a virtual point-to-point connection. It has exactly the same structure as an actual physical interface in terms of implementation, and also has properties similar to those of an actual physical interface; a tunnel interface includes the source address, destination address, and tunnel identifier of the tunnel. The end address refers to the actual interface address of the local end of the point-to-point connection of the tunnel, that is, the source address added in the IP header of the GRE protocol packet; the peer address of the tunnel refers to the address of the peer interface of the point-to-point connection of the tunnel, that is, the address added by the GRE protocol packet. The destination address in the IP header; the tunnel identifier (key) is a number set for the confirmation of the identities of both ends of the tunnel.

[0036] For the actual ph...

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Abstract

The packaging retransmission method of message in network communication includes the following steps: firstly, the tunnel interface information required for packaging GRE protocol message is broadcasted to interface plate by means of main control board in the network equipment, the tunnel interface information includes source address, destination address and tunnel identification, then the interface plate uses the above-mentioned tunnel interface information to package said GRE protocol message, and finally the packaged GRE protocol message can be retransmitted by means of interface plate.

Description

technical field [0001] The invention relates to a method for encapsulating and forwarding packets in network communication, in particular to a method for encapsulating and forwarding packets of a general routing encapsulation (GRE: General Router Encapsulation) protocol in network communication. Background technique [0002] With the development of Internet (Internet) technology, its advantages such as instant information dissemination and no location restrictions have become increasingly prominent. Therefore, more and more enterprises are using the advantages of the Internet to establish a public data network on the Internet for transmission. The network of enterprise internal information, namely VPN (VirtualPrivate Network: Virtual Private Network), the VPN enables authorized users to easily access key business programs and data in the enterprise internal system. For example, an employee on a business trip can use any computer that can access the Internet to access the int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/70H04M3/42H04Q3/00
Inventor 阴元斌
Owner HUAWEI TECH CO LTD
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