Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Router exchange structure for supporting uniform exchange and service quality guarantee method

A switching structure and router technology, which is applied in the direction of data switching network, digital transmission system, electrical components, etc., can solve the problems of increased demand for cross-point buffer capacity and difficulties in hardware implementation

Inactive Publication Date: 2007-03-21
INST OF COMPUTING TECH CHINESE ACAD OF SCI
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of wire speed and delay, the demand for the capacity of the intersection buffer also increases sharply, which brings great difficulties to hardware implementation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Router exchange structure for supporting uniform exchange and service quality guarantee method
  • Router exchange structure for supporting uniform exchange and service quality guarantee method
  • Router exchange structure for supporting uniform exchange and service quality guarantee method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] In the present invention, many technical terms and mathematical symbols are involved, so for the convenience of understanding, the relevant concepts are defined first.

[0046] 1) Uniform switching means that when the cells in the input stream reach the output port through the switching device, the cells in a single input stream should be evenly distributed in the output stream.

[0047] 2) A time slot (Time Slot), which represents the time unit required to transmit a cell at a line rate. The time unit is bounded by an integer, and the symbol t represents the interval [t, t+1).

[0048] 3) Given N streams of fixed-length packets (cells), sharing an output link with a bandwidth of r, assuming that the bandwidth requirement of the i-th stream is r i , and ∑ i r i ≤ r, an instance is defined (r; r 1 , r 2 ,...,r N ). In the present i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An exchange structure of route supporting uniform exchange is prepared as connecting input port formed by input buffer area and dispatcher to output port through exchange kernel, setting buffer area at each cross point of said kernel, corresponding one input buffer area to one type of stream, sending cell of stream in input buffer area to said kernel by dispatcher and buffer-storing cell of specific stream in buffer area at cross point, enabling to store four cells in each buffer area at cross point, multiplexing cell in buffer area at corresponding cross point to be a stream and outputting it by dispatcher on output port.

Description

technical field [0001] The present invention relates to a core device router for network interconnection, in particular to a router switching structure supporting uniform switching. Background technique [0002] With the increasing bandwidth requirements of the Internet and the rapid development of optical fiber transmission technology, routers have become the bottleneck of network development. As the core component of the router architecture, the switching fabric plays a key role in improving the switching capacity of the router and ensuring the quality of service. [0003] The switching structure of a router usually has an input port, an output port, and a switching core. During the switching process of a router, cells arriving from multiple input ports may compete for the same output port at the same time. In order to avoid this situation, it is necessary to Cells perform enqueue management. There are mainly two existing queuing strategies: (1) output queuing (Output Qu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L12/56H04L45/60
Inventor 贺思敏孙书韬赵巍郑燕峰高文
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products