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A cell switching method and device

A technology of cell switching and cell switching, which is applied in the field of communication and can solve problems affecting data flow and complicated cell switching

Active Publication Date: 2016-08-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the above-mentioned network equipment can only complete the exchange of cells in space and limited time, the network equipment needs to control two sets of switching logic for exchanging cells at the same time in order to complete the exchange of cells simultaneously in space and time. In this way, the exchange of cells in each frame will be very complicated; moreover, if a data stream needs to be added, deleted or modified, the switching system of the entire network device needs to be reconfigured, which affects other data streams that do not need to be modified

Method used

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  • A cell switching method and device
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  • A cell switching method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0051] An embodiment of the present invention provides a cell exchange method, such as figure 1 shown, including:

[0052] S101. The network device acquires input information of cells to be exchanged.

[0053] The network device may be a switch, a router, or the like. Specifically, a switch is a collection of traffic bearing devices, switching levels, control and signaling equipment, and other functional units on a network node. The switch can connect subscriber lines, telecommunication circuits, and / or other functional units that need requests are connected. A router is a device that selects routes for information flow or data packets. A router is a device that connects various LANs and WANs in the Internet. It will automatically select and set routes according to the channel conditions, and send signals in the order of the best path.

[0054] In the field of communication, a cell is a fixed-length bit string composed of a header string and an information string. The cell is...

Embodiment 2

[0070] An embodiment of the present invention provides a cell exchange method, such as figure 2 shown, including:

[0071] S201. The network device acquires input information of cells to be exchanged.

[0072] The network device may be a switch, a router, or the like. Specifically, a switch is a collection of traffic bearing devices, switching levels, control and signaling equipment, and other functional units on a network node. The switch can connect subscriber lines, telecommunication circuits, and / or other functional units that need requests are connected. A router is a device that selects routes for information flow or data packets. A router is a device that connects various LANs and WANs in the Internet. It will automatically select and set routes according to the channel conditions, and send signals in the order of the best path.

[0073] In the field of communication, a cell is a fixed-length bit string composed of a header string and an information string. The cell...

Embodiment 3

[0111] Such as Figure 4 As shown, the embodiment of the present invention provides a network device 1, including:

[0112] The obtaining unit 10 is configured to obtain input information of cells to be exchanged.

[0113] The search unit 11 is configured to search a preset label configuration table for a label corresponding to the input information according to the input information.

[0114] The writing unit 12 is configured to write the cell into the storage unit indicated by the tag, so that when the cell is output, the reading unit 13 reads the tag from a preset scheduling control table , and read the information element from the storage unit according to the label, and then output the information element, wherein the storage unit is set in a data set storage buffer.

[0115] Further, the reading unit 13 is specifically configured to read the label from the scheduling control table according to the current output information.

[0116] Further, the input information inc...

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Abstract

An embodiment of the invention provides a method and a device for cell exchange, and relates to the field of communication. The method and the device can simplify a cell exchange process, and other data flows without the need of modification are not affected when a certain data flow is increased or reduced or modified. The method includes the steps that input information of cells to be exchanged is obtained; according to the input information, labels corresponding to the input information are looked up in a preset label configuration table; and the cells are written into storage units indicated by the labels, when the cells are outputted, the labels are read from a preset scheduling control table, the cells are read from the storage units according to the labels, and the cells are further outputted, wherein the storage units are arranged in a data collection storage buffer area.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for exchanging cells. Background technique [0002] With the continuous growth of network services, the demand for network bandwidth of network services is also increasing. The current OTN (Optical Transport Network, Optical Transport Network) has gradually become the focus of transport network development because it can meet the needs of various network services. majority direction. [0003] In the prior art, the TST (Time-Space-Time, time division-space division-time division) exchange in the OTN is mainly to exchange cells transmitted in the OTN. Among them, the unit of data transmission is frame, each frame contains L time slots, each cell corresponds to a time slot, and the number of time slots increases step by step from 0 to L-1, that is, 0, 1, 2 , ......, L-1. [0004] Usually, the network device can use the look-up table method to complete the exchange of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/773
Inventor 陈煦孙杰韩新伟
Owner HUAWEI TECH CO LTD
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