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Flow table monitor management method and device, network equipment and network system

A management method and monitor technology, applied in the network field, can solve the problems of waste of processing resources on the OpenFlow switch side and not getting the information that needs to be understood, and achieve the goal of improving the success rate and effectiveness, improving the management level, and optimizing the allocation of resources. Effect

Inactive Publication Date: 2020-06-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The flow meter monitor management method, device, network equipment, and network system provided by the embodiments of the present invention mainly solve the technical problem that the OpenFlow controller easily sends invalid or duplicate flow meter monitors to the OpenFlow switch, causing the OpenFlow controller to The flow table monitor is delivered but the information you need to know is not obtained, or the processing resources on the OpenFlow switch side are wasted

Method used

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  • Flow table monitor management method and device, network equipment and network system
  • Flow table monitor management method and device, network equipment and network system
  • Flow table monitor management method and device, network equipment and network system

Examples

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Embodiment 1

[0039] As an example of Software Defined Network (SDN, Software Defined Network), the OpenFlow network realizes flexible control of network traffic by adopting an architecture in which the control plane and the forwarding plane are separated. figure 1 Shown is a schematic diagram of the component architecture of the OpenFlow network system: the control plane of the OpenFlow network system 1 is implemented by the OpenFlow controller 11 , and the forwarding plane of the OpenFlow network system 1 is implemented by the OpenFlow switch 12 . The OpenFlow controller 11 can use the OpenFlow protocol to issue a flow table (Flow Table) and a group table (Group Table) to the switch 12 supporting the OpenFlow protocol, thereby realizing the separation of the control plane and the forwarding plane.

[0040]The OpenFlow switch specification developed by the Open Network Foundation (ONF) describes that the OpenFlow switch 12 can be connected to multiple OpenFlow controllers through OpenFlow c...

Embodiment 2

[0061] In the foregoing embodiments, the Open Flow controller determines whether to send a delivery request to the Open Flow switch according to the query result after receiving the query result from the Open Flow switch. However, there is no doubt that in many cases, the Open Flow controller does not necessarily send a delivery request to the Open Flow switch based on the query result. For example, in some examples, the Open Flow controller may send a delivery request to the Open Flow switch before sending a query request to the Open Flow switch, so that the Open Flow switch sets the flow table monitor according to the requirements of the Open Flow controller. However, it should be understood that if the Open Flow controller sends a delivery request to the Open Flow switch without obtaining the query result, the delivery request may fail because the flow table monitor on the OpenFlow switch side The number may have reached a set threshold, or the flow monitor issued by the Op...

Embodiment 3

[0077] In order to make those skilled in the art more aware of the advantages and details of the flow meter monitor management method, this embodiment will continue to illustrate the flow meter monitor management method with examples, see Figure 4 :

[0078] S402: The Open Flow controller establishes an Open Flow channel with the Open Flow switch.

[0079] The Open Flow channel is a channel for interaction between the Open Flow controller and the Open Flow switch. The Open Flow controller can issue flow tables and flow table monitors through the Open Flow channel, and the Open Flow switch can send the Feedback the monitoring result of the flow meter monitor on the flow meter. In this embodiment, the Open Flow controller may also send a query request to the Open Flow switch through the Open Flow channel, and the Open Flow switch may also use the Open Flow channel to feed back a query result to the Open Flow controller.

[0080] S404: The Open Flow controller sends a query re...

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Abstract

The embodiment of the invention provides a flow table monitor management method and device, network equipment and a network system. The method comprises the following steps: an Open Flow controller sends a query request to an Open Flow switch; and the Open Flow switch queries the target information of the target flow table monitor under the switch based on the query request to obtain a query result and send the query result to the Open Flow controller, so that the Open Flow controller can know the information of the flow table monitor needing to be known according to the query result. The condition that the Open Flow controller cannot obtain the state information of the flow table monitor under the Open Flow switch is avoided; therefore, the situation that the Open Flow controller issues the invalid or repeated flow table monitor is avoided, the Open Flow controller has a basis for issuing the flow table monitor, and the success rate and effectiveness of issuing the flow table monitorby the Open Flow controller are improved.

Description

technical field [0001] The invention relates to the network field, in particular to a flow meter monitor management method, device, network equipment and network system. Background technique [0002] As an example of software-defined network, OpenFlow network realizes the flexible control of network traffic by adopting the structure of separating control plane and forwarding plane. The OpenFlow protocol describes that the OpenFlow controller can learn about changes in the state of the flow table it cares about through the flow table monitor. Therefore, the OpenFlow controller can issue the flow table monitor to the OpenFlow switch and specify the flow table monitor to monitor. object, let the flow table monitor collect the state of the corresponding flow table, and then feed it back to the OpenFlow controller by the OpenFlow switch. [0003] However, in practical applications, the number of flow monitors managed by the OpenFlow switch is limited to a certain extent due to i...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/939
CPCH04L43/0894H04L43/0817H04L43/12H04L49/55H04L45/64
Inventor 杨举
Owner ZTE CORP
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