Method and system for controlling data flow

A technology of data flow and control method, applied in the field of communication, can solve the problems of occupying data bandwidth, stopping receiving flow control, failure and so on

Inactive Publication Date: 2009-09-16
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The purpose of the present invention is to overcome the defects of occupying data bandwidth, stop receiving, and failure of flow control in the existing flow control method, and provide a reliable flow control method and system

Method used

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  • Method and system for controlling data flow
  • Method and system for controlling data flow
  • Method and system for controlling data flow

Examples

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Embodiment Construction

[0031] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] Figure 4 It is a schematic diagram of the data flow control system of the embodiment of the present invention. Such as figure 1 As shown, the system includes: a data receiving device 40 and a data sending device 50 . The data receiving device 40 includes: a local reputation value counter 401 established for each data channel of the data receiving device 40; the data sending device 50 includes: a remote reputation value established for each data channel of the data receiving device 40 Counter 501.

[0033] The data sending device 50 also includes: a reputation value updating unit 502, configured to read the value of the local reputation value counter 401 of the target data channel when the data sending device 50 needs to send data to the target data channel of the data receiving device 40, Adding the value of the read local reputati...

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PUM

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Abstract

An embodiment of the invention provides a method and a system for controlling data flow. The method includes: establishing a local trust value counter for each channel on a receiving end, establishing a remote credit value counter for each channel on a transmitting end; the transmitting end reads a local credit value counter value of an object channel on the receiving end, adding the read value and the remote credit value counter value of the object channel for obtaining a new value of the remote credit value counter of the object channel, using the new value for updating the remote credit value counter, and resetting the local credit value counter of the object channel; the transmitting end transmits data to the object channel according with the new value of the remote credit value counter, and reduces the remote credit value counter value of the object channel according with the transmitted data amount; the receiving end stores the received data on a cache of the object channel, increases the local credit value counter value of the object channel according with the transmitted data amount.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a data flow control method and system. Background technique [0002] SDH (Synchronous Digital Hierarchy) is a comprehensive information transmission network that integrates multiplexing, line transmission and switching functions, and is operated by a unified network management system. SDH has 155M, 622M, 2.5G, 10G and other speeds. POS (PACKET OVER SDH, packet transmission on SDH) is a technology for transmitting data packets on SDH. It encapsulates IP packets and maps them to SDH / SONET frames. [0003] CPOS (Channelized POS, channelized POS) divides POS links into channels. For example, a 155M link supports up to 63 E1 links with a 2M rate. CPOS makes full use of the characteristics of the SDH mechanism and provides the ability to finely divide bandwidth. CPOS reduces the number of low-speed physical interfaces of routers in the network, enhances the low-speed interface...

Claims

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Application Information

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IPC IPC(8): H04L1/00
Inventor 杨宁
Owner RUIJIE NETWORKS CO LTD
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