Unlock instant, AI-driven research and patent intelligence for your innovation.

RPF protocol applied in optical burst switching ring network based on WDM

A technology of RPF and ring network, applied in the field of optical communication network, can solve the problem of high priority

Inactive Publication Date: 2006-06-21
BEIJING UNIV OF POSTS & TELECOMM
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first type of business has higher priority than the second type of business

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
  • RPF protocol applied in optical burst switching ring network based on WDM
  • RPF protocol applied in optical burst switching ring network based on WDM
  • RPF protocol applied in optical burst switching ring network based on WDM

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] refer to image 3, when a node finds an available RPF in the control frame, the node will take it out, and then check whether there is any data service that can be sent in its data queue, if not, the node will release the RPF and send it to the downstream node , and then process the next RPF. If there is data to be sent, judge the type of data service. If it is the first type of service, put the RPF into the buffer FIFO and queue it. If it is ranked first (that is, there is a sending port that is not the first type of service), send CF. To the destination node, control the wavelength selection receiving device, and change the receiving wavelength of the receiving port to the wavelength sent by the source node. At the same time, after the source node waits for the sum of the offset time 1 and the offset time 2, the source node uses the idle sending port to send data. Change the value of the service type in the RPF to 0, update the value in the RPF, and release the RPF ...

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

The invention provides a RPF protocol used in OBS loop network based on WDM. With this protocol, the transmission wavelength has no collision conflict; the source node has no data transmission conflict as well as on middle node, and the target node also has no data receive conflict. Wherein, the Class1 business is real-time with small time delay, the Class2 business is not real-time business and needs to try best. In RPF protocol, it releases the RPF before completing data transmission, and the RPF catch is dependent on business type. This invention provides better service to the Class1 business with lower missing packet rate and smaller time delay.

Description

technical field [0001] The invention relates to an optical communication network, in particular to a protocol of an optical burst switching network. Background technique [0002] With the rapid growth of IP data services, IP over WDM is becoming more and more obvious as the core technology of future IP networks. Optical Burst Switching (OBS) technology based on WDM is one of the most promising technologies at present. In optical burst switching, the bandwidth granularity used is between optical circuit switching and optical packet switching. It is more flexible than optical line switching, has high bandwidth utilization, and is more practical than optical packet switching. It can be said that it combines the advantages of the two and overcomes some of the shortcomings of the two. It is a balanced choice between the two, so it has gradually attracted the attention of many scholars. [0003] In the OBS ring network, the OBS node assembles the data from the access subnet into...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 高泽华纪越峰胡轶群高鹏
Owner BEIJING UNIV OF POSTS & TELECOMM