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Method, device and system for stream identification

A technology for flow identification and switching equipment, applied in the field of flow identification, which can solve the problems of inability to identify content information, inability to forward data packets, etc.

Active Publication Date: 2017-02-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] After the data packets are processed by the tunnel encapsulation technology, in the existing OpenFlow protocol and flow table definition, neither the switching device nor the controller can identify the content information of the tunnel encapsulation in the data packets, so they cannot identify the content information after the tunnel encapsulation. Perform forwarding or other operations on data packets processed by tunnel encapsulation

Method used

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  • Method, device and system for stream identification
  • Method, device and system for stream identification
  • Method, device and system for stream identification

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specific Embodiment approach

[0066] Embodiment 4 of the present invention, such as Figure 4 As shown, a method for flow identification is provided. The method is how to identify the switching device according to the enhanced flow entry matching the tunnel encapsulation after obtaining the enhanced flow entry matching the tunnel encapsulation in any one of the methods described in Embodiment 1 to Embodiment 3 of the present invention. Specific refinement of data packets processed through the tunnel encapsulation. As a specific implementation manner, the following contents are included.

[0067] S41. The switching device determines whether the enhanced flow entry matching the tunnel encapsulation is set according to the identifier of the tunnel encapsulation. The identifier of the tunnel encapsulation indicates whether the tunnel encapsulation content in the data packet processed by the tunnel encapsulation needs to be identified through specific data, symbols or fields.

[0068] If it is set, it means ...

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Abstract

The invention discloses a flow identification method, device and system. In the system implementing the flow identification method, the switching device obtains the enhanced flow entry matching the tunnel encapsulation, and the enhanced flow entry matching the tunnel encapsulation includes the identifier of the tunnel encapsulation and the flow table field matching the tunnel encapsulation ; According to the enhanced flow entry matched by the tunnel encapsulation, the switching device identifies the data packet processed through the tunnel encapsulation. By applying the technical solution disclosed in the invention, the content of the message in the data message that has been processed by tunnel encapsulation can be identified.

Description

technical field [0001] The invention relates to the communication field, in particular to the technology of flow identification. Background technique [0002] The OpenFlow (OpenFlow in English) protocol transforms the packet forwarding process that was originally completely controlled by the switch / router into a switching device that supports the OpenFlow protocol (hereinafter collectively referred to as the switching device) and a controller that uses the OpenFlow protocol (hereinafter collectively referred to as the controller). Completed together, thus realizing the separation of data forwarding and routing control. The controller controls the flow table in the switching device through the OpenFlow protocol to achieve the purpose of controlling data forwarding. [0003] After the data packets are processed by the tunnel encapsulation technology, in the existing OpenFlow protocol and flow table definition, neither the switching device nor the controller can identify the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L12/46H04L12/723H04L12/947H04L45/50H04L45/74H04L47/20H04L49/111
CPCH04L49/3009H04L45/74H04L12/4633H04L47/2483H04L47/20H04L45/745
Inventor 周伟
Owner HUAWEI TECH CO LTD
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