Congestion control method and apparatus for multi-level CLOS system

A technology for congestion control and link congestion, applied in transmission systems, digital transmission systems, electrical components, etc., to solve problems such as system failures and congestion.

Active Publication Date: 2016-08-03
FENGHUO COMM SCI & TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, as the network scale increases and the system continues to expand, the probability of su

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  • Congestion control method and apparatus for multi-level CLOS system
  • Congestion control method and apparatus for multi-level CLOS system
  • Congestion control method and apparatus for multi-level CLOS system

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Embodiment Construction

[0061] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0062] see image 3 As shown, the embodiment of the present invention provides a congestion control method for a multi-level CLOS system, the congestion control method includes the following steps:

[0063] Step S1: Determine the type of congestion control that the CLOS system needs to perform. If the type of congestion control is global congestion control, then go to step S2; if the type of congestion control is routing congestion control, go to step S3; if the type of congestion control is link Congestion control, then turn to step S4;

[0064] Step S2: Make a corresponding response according to the global congestion indication GCI generated by the system, control the global congestion caused by the Ethernet multicast by reducing or stopping the cell sending service of the Ethernet multicast, and turn to step S5;

[0065] Step S3:...

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Abstract

The invention, which relates to the technical field of congestion control of a CLOS system, discloses a congestion control method and apparatus for a multi-level CLOS system. The congestion control method comprises: a type of congestion control needed by a CLOS system is determined; if the congestion control is global congestion control, a corresponding response is made according to a GCI instruction generated by the system and global congestion is controlled by reducing or stopping a cell sending service in an ethernet multicast mode; if the congestion control is route congestion control, a corresponding response is made according to an RCI instruction generated by the system and route congestion is controlled by reducing a unicast flow; and if the congestion control is link congestion control, link congestion is controlled by reducing effective data on a link according to an LLFC instruction generated by the system; and when congestion control is determined to be carried out continuously, the above-mentioned steps are executed circularly. According to the invention, the work efficiency and performances of the CLOS system are protected from being reduced due to congestion, so that the scheduling capability and performance of the whole system are kept.

Description

technical field [0001] The present invention relates to the technical field of congestion control of a CLOS (Close Switching Architecture) system, in particular to a congestion control method and device for a multi-level CLOS system. Background technique [0002] The CLOS system based on cells (CELL) has the characteristics of scalability and large capacity, and has become the mainstream of switching chips at present. Generally speaking, a CLOS system includes several IMs (input modules), several CMs (intermediate modules) and several OMs (output modules), which can form a 3-level CLOS structure and can be easily expanded into a 5-level CLOS structure, the common 5-level CLOS structure such as figure 1 shown. Specific to practical applications, such as figure 2 As shown, a 5-level CLOS system can be formed by folding, that is, the IM and OM functions are implemented in one chip, while the CM function is implemented in another chip. Among them, the chip that realizes the...

Claims

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Application Information

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IPC IPC(8): H04L12/825H04L12/813H04L47/20
CPCH04L47/20H04L47/25H04L47/263
Inventor 屈琴书张伟
Owner FENGHUO COMM SCI & TECH CO LTD
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