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Backpressure method on multiplexed links

A link and multiplexing technology, applied in advanced technology, digital transmission system, electrical components, etc., can solve the problem that the transmission capacity of the network interface is not effectively utilized, and achieve the effect of smooth communication

Inactive Publication Date: 2007-05-16
NOKIA SOLUTIONS & NETWORKS OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result is that the send capacity of the network interface is not effectively utilized

Method used

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  • Backpressure method on multiplexed links
  • Backpressure method on multiplexed links
  • Backpressure method on multiplexed links

Examples

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Embodiment Construction

[0031] Describe the present invention below in conjunction with accompanying drawing.

[0032] Referring to Fig. 2, the general structure of the network element according to the preferred embodiment of the present invention will be described.

[0033] The network element includes an L3 block as an example of the first network block 1 and an L2 block as an example of the second network block 2 . These two blocks are connected by data link 3. An example of such a data link is an Ethernet interface. Note that the specific data rate provided by this link is greater than the cumulative data rate of the interfaces on the L2 block. The L2 block includes data sources (eg packet sources) 11-1 to 11-n, and data rate limiting means 12-1 to 12-n. Each data rate limiting device is associated with a particular data source (eg, 11-1 to 12-1, as shown). Note that at least one of a data source and a data rate limiter must be provided. The sending device 13 sends data via the interface 3 ....

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Abstract

The invention proposes a network element comprising a first network block (1) and a second network block (2) connected via a link (3) providing a certain data rate, wherein the first network block comprises at least one data source (11-1 to 11-n) and at least one data rate limiting means (12-1 to 12-n) associated to the data source, the second network block comprises at least one data processing means (22-1 to 22-n) associated to the data source, and a data flow information obtaining means (23-1 to 23-n) for obtaining data flow information regarding the data rate of the data processed by the data processing means, wherein the data rate limiting means of the first network block is adapted to vary the data rate of data sent from the data source depending on the data flow information. The invention also proposes a corresponding method.

Description

technical field [0001] The invention relates to a method for controlling data flow from a first network block to a second network block, and corresponding network elements comprising the first network block and the second network block, said first network block and the second network block Net blocks are connected by links that provide a specific data rate. Background technique [0002] The invention relates to a device or network system structure for data forwarding through a multiplexing transmission interface between a data source and a data link. The transmission interface used for the connection between the data source and the data link is of various types (which can be implemented as physically distinct modules). Some interfaces provide flow control mechanisms, others do not. The present invention concerns the latter type and aims to solve the problem of missing flow control. [0003] In the following, the considered architecture is described with reference to FIG. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/08H04L12/811
CPCH04L47/10H04L47/17H04L47/26H04L47/30H04L47/22H04L47/263Y02D30/50H04L69/325H04L69/324H04L69/32
Inventor 格拉尔德·贝格霍夫
Owner NOKIA SOLUTIONS & NETWORKS OY