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Time delay measurement method and network equipment

A network device and delay technology, applied in the information field, can solve problems such as accumulation of uncertain delays and reduced communication efficiency

Active Publication Date: 2020-03-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the number of cascaded devices increases, uncertain delays will accumulate, resulting in reduced communication efficiency

Method used

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  • Time delay measurement method and network equipment
  • Time delay measurement method and network equipment
  • Time delay measurement method and network equipment

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Embodiment Construction

[0135] The technical solution in this application will be described below with reference to the accompanying drawings.

[0136] In order to better understand the method for measuring the delay in the embodiment of the present application, some related basic concepts are briefly described below.

[0137] Reconciliation sub-layer (reconciliation sub-layer, RS), its main function is to provide a signal mapping mechanism between media-independent interface (media-independent interface, MII) and media access control layer (media access control, MAC).

[0138] The main function of the MAC layer is to form the "0" and "1" bit streams of the physical layer into a frame, and perform error checking through the error checking information at the end of the frame.

[0139] The MAC sublayer, its main function is to add the physical address of the target computer to the data frame. When the data frame is passed to the MAC layer of the peer, it checks whether the address matches its own addre...

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Abstract

The invention provides a method for measuring time delay and network equipment. The method comprises the following steps: first network equipment receives a first service flow; and the first network device determines a first time delay value according to a first measurement code block in the first service flow, wherein the first time delay value is a time difference value between a first moment and a second moment when the first measurement code block is detected in the first network device. Based on the technical scheme, the network equipment can determine the time delay value of the serviceflow by measuring the time delay value of the measurement code block in the service flow.

Description

technical field [0001] The present application relates to the field of information technology, and more specifically, to a method for measuring time delay and a network device. Background technique [0002] The virtual interleaving sub-layer (virtual interleaving sub-layer, VIS) technology itself is a time division multiplexing technology below the media access control layer (media access control, MAC), which slots the channels below the MAC layer. After time slotting, the channel of time slotting can be used to transmit low-speed industrial Ethernet services. However, time slotting will bring about the general one-way delay uncertainty problem, that is, the random relationship between the service arrival time and the transmission time slot time, resulting in uncertain service delay. [0003] When the business is mapped to the time slot in the VIS, delay uncertainty will be introduced in both the business mapping and the egress buffer. As the number of cascaded devices inc...

Claims

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Application Information

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IPC IPC(8): H04L12/26
CPCH04L43/0852H04L43/08H04L43/026H04L43/0858H04L41/142H04L1/0057H04L47/283H04L12/40136
Inventor 汪仁磊楼喆查敏朱志刚
Owner HUAWEI TECH CO LTD
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