Network delay detection method, device and system

A technology of network delay and detection method, which is applied in the field of communication, can solve problems such as increasing the burden of control channels, and achieve the effect of saving control channel resources

Active Publication Date: 2015-08-19
HUAWEI TECH CO LTD
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Problems solved by technology

[0009] Using the above scheme, although the delay can be accurately calculated, the transponder n...

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  • Network delay detection method, device and system
  • Network delay detection method, device and system
  • Network delay detection method, device and system

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Embodiment Construction

[0066] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0067] Before introducing the technical solutions of the embodiments of the present invention, the specific application scenarios of the embodiments of the present invention will be explained first.

[0068] See figure 1 , is a schematic diagram of a network according to an embodiment of the present invention, which is applied to a scenario where a perceived delay is required in an SDN network based on separation of control and forwarding,...

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Abstract

The embodiments of the present invention disclose a network delay detection method, a device and a system. The method comprises the steps of sending an operation administration and maintenance (OAM) detection message to a transponder in a forwarding network by a controller; recording the first moment T1 of sending the OAM detection message; receiving a response message returned from the transponder by the controller; recording the fourth moment T4 of the response message reaching the controller, wherein the load of the response message contains the second moment T2 of the OAM detection message reaching the transponder and the third moment T3 of the response message reaching the transponder; and calculating the network delay according to any two moments out of the first moment T1, the second moment T2, the third moment T3 and the fourth moment T4 by the controller. In this way, the controller receives the response massage only once, so that the resource of control channels is saved.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a network delay detection method, device and system. Background technique [0002] In the network architecture of SDN (Software Defined Network, software-defined network), it is usually divided into three parts: APP (Application, application program) application, controller, and forwarder. The SDN (Service dialling number) controller opens services to APP applications through northbound interfaces such as Restful and NetConf. At the same time, the controller collects the underlying physical network topology, performs centralized calculations, and controls the underlying transponders through southbound interfaces such as Openflow. The SDN system architecture is usually shown in the following figure: [0003] The business application of the APP is opened to the APP by the controller in the north direction. According to the implementation method of Openflow SDN, t...

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Application Information

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IPC IPC(8): H04L12/26
Inventor 赵然晓王歆平
Owner HUAWEI TECH CO LTD
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