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A method, device and system for tunnel message processing

A technology of tunnel message and tunnel, which is applied in the field of tunnel message processing, and can solve problems such as reassembly mismatch and tunnel message error

Active Publication Date: 2015-08-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a method, device and system for processing tunnel messages, so as to solve the problem that when the existing tunnel encapsulated messages are fragmented, recombination produces mismatches, resulting in tunnel message errors

Method used

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  • A method, device and system for tunnel message processing
  • A method, device and system for tunnel message processing
  • A method, device and system for tunnel message processing

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Embodiment Construction

[0023] In order to make the above objects, features and advantages of the embodiments of the present invention more comprehensible, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] see figure 1 , is a flowchart of a method for processing tunnel packets provided by an embodiment of the present invention, the method including:

[0025] 101: The tunnel entry device receives the data packet.

[0026] Common tunneling technologies include Generic Routing Encapsulation (GRE for short), Layer 2 Tunneling Protocol (L2TP for short), Internet Protocol Security (IPSec for short), and the like.

[0027] The tunnel entry device may be a router, a switch, or the like.

[0028] 102: Obtain a dynamic identifier.

[0029] The dynamic identifier may be a time stamp, an integer that changes according to a regular quantity, such as an integer that increases or decreases...

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PUM

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Abstract

Embodiments of the present invention disclose a method, an apparatus and a system for processing a tunnel packet. When a tunnel ingress device performs tunnel encapsulation on a data packet, a dynamic identifier is included in an encapsulated packet header, so that each tunnel-encapsulated data packet has a different triplet. In this way, when the tunnel-encapsulated data packet is fragmented, a tunnel egress device may correctly reassemble the tunnel-encapsulated data packet according to the triplet of the fragmented packet.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method, device and system for tunnel message processing. Background technique [0002] Tunneling technology is a way of transmitting data between networks through the Internet infrastructure. The data transmitted through the tunnel can be data frames or data packets of different protocols. Tunneling technology encapsulates data frames or data packets of different protocols on the tunnel entrance device to obtain tunnel packets at the outer layer, and forwards tunnel packets between devices at both ends of the tunnel through the public Internet. Once the tunnel packet reaches the egress device of the tunnel, the tunnel packet will be decapsulated and forwarded to the final destination. During the entire transmission process, the logical path through which the tunnel message is transmitted on the public Internet is called a tunnel. Tunnel technology is the whole process inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/749H04L45/741
CPCH04L1/0083H04L12/4633
Inventor 田向远
Owner HUAWEI TECH CO LTD