Layer 2 tunnel fast forwarding device and method

A layer-2 tunnel and forwarding device technology, applied in the field of data communication, can solve the problems of low forwarding efficiency, reduce coupling degree and improve tunnel forwarding performance

Active Publication Date: 2011-12-28
BEIJING HAN NETWORKS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] According to the tunnel forwarding processing flow in the prior art, data interaction between the kernel and the application needs to be performed twice during the forwarding process of each data packet, thus resulting in low forwarding efficiency

Method used

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  • Layer 2 tunnel fast forwarding device and method
  • Layer 2 tunnel fast forwarding device and method
  • Layer 2 tunnel fast forwarding device and method

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Embodiment Construction

[0028] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, wherein like reference numerals denote like components throughout.

[0029] figure 2 is a block diagram showing a Layer 2 tunnel fast forwarding device 200 according to an exemplary embodiment of the present invention. The Layer 2 tunnel fast forwarding device 200 according to the exemplary embodiment of the present invention is based on the Linux system, but it should be understood that the present invention is not limited thereto, and the Layer 2 tunnel fast forwarding device 200 may also be based on other suitable systems, such as the Unix system.

[0030] Such as figure 2 As shown, the Layer 2 tunnel fast forwarding device 200 according to an exemplary embodiment of the present invention includes an application 210 and a kernel 220, wherein the application 210 includes a control module 211, and the kernel 220 includes a first interface driver module 221, ...

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Abstract

The invention provides a quick forwarding equipment and method for a two-layer tunnel. The equipment comprises a first interface driving module, a quick forwarding module, an IP (Internet Protocol) forwarding module and a second interface module which are positioned in an inner core. The equipment works in the following uplink forwarding mode: the first interface driving module receives a data message from a user side and sends the data message to the quick forwarding module; the quick forwarding module determines whether quick forwarding is to be performed, if so, the quick forwarding module encapsulates the data message, so that the outer layer source of the data message, a target IP address and the IP address of the quick forwarding equipment for the two-layer tunnel are on the same network segment; the IP forwarding module is called by the quick forwarding module to perform route search to obtain a target MAC (Media Access Control) address for replacing a temporary outer layer target MAC address; the quick forwarding module sends the data message to the second interface driving module; and the second interface driving module sends the data message to the server.

Description

technical field [0001] The present invention relates to the field of data communication, and more specifically, the present invention relates to a layer-2 tunnel fast forwarding device and method. Background technique [0002] Tunneling is a method of transferring data between networks by using infrastructure of a network (such as the Internet), wherein the data or payload transferred using the tunneling technology may be data frames or packets of different protocols. The tunnel protocol re-encapsulates data frames or packets of other protocols, and then sends them through the tunnel. The encapsulated new frame header provides routing information so that the encapsulated payload data can be transmitted through the network. [0003] The tunnel is similar to a point-to-point connection, which enables network services from many information sources to be transmitted through different tunnels in the same infrastructure. Tunneling replaces switched connections with a point-to-poi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L45/74
Inventor 段铭哲范成龙
Owner BEIJING HAN NETWORKS TECH CO LTD
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