Dual Plane System Utilizing Dual Transmit and Selective Receive Circuits

A dual-transmission, selective-receive, dual-plane technology, applied in the field of dual-plane systems, can solve the problems of long switching time, inability to know whether the working status of the receiving channel is normal, data loss, etc., and achieve the effect of solving the unclear working status.

Inactive Publication Date: 2012-02-01
HUAWEI TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above system, since the link duplication device 23 itself does not have a detection function for link layer data, it is impossible to know whether the working status of another receiving channel is normal before the receiving channel is switched.
When both channels work abnormally, it is easy to cause frequent switching between the two receiving channels
In addition, it takes a long time to detect service channel line faults through software, and the switching time is long, which may lead to a large amount of data loss during switching

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
  • Dual Plane System Utilizing Dual Transmit and Selective Receive Circuits
  • Dual Plane System Utilizing Dual Transmit and Selective Receive Circuits
  • Dual Plane System Utilizing Dual Transmit and Selective Receive Circuits

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Such as Figure 4 As shown, the service board 12 includes a dual-send and selective-reception circuit 42, which is used to copy the output data of other circuit modules 21 in the service board 12 and send them to the two sending ports of the physical layer circuit 22 respectively, while the dual-send and selective-reception circuit Regularly insert handshake frames in the two sending channels. The dual-send selective receiving circuit 42 receives the data received by the physical layer circuit 22 from the two Gigabit Ethernet interfaces, selects one of the receiving channels to be set as the main receiving channel, and the other receiving channel is set as the standby receiving channel, and the main receiving channel Handshake frames with the standby receiving channel are all extracted and processed internally by the dual-send selective receiving circuit 42, the service frames received by the main receiving channel are sent to other circuit modules in the board for proc...

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 relates to a dual-plane system using a dual-transmission and selective-reception circuit, which includes two switching network boards and a plurality of service boards, each switching network board is connected to each service board in star form, and each service board is The channel and the backup channel realize the data communication between it and the switching network board, and it is characterized in that the service board includes a dual-send and selective-reception circuit that can be generated for detecting the working status of the main channel and the backup channel, and the dual-send and selective-reception circuit The circuit selects the main channel according to the received handshake frame. The dual-plane system using the dual-transmission and selective-reception circuit of the present invention has short fault detection and switching time, can know whether the backup channel is normal before switching, and can prevent frequent switching of the main and backup channels.

Description

technical field [0001] The invention relates to a dual-plane system, in particular to a dual-plane system constructed by dual-transmission and selective-reception circuits. Background technique [0002] In application systems that require high reliability, dual-plane structures are widely used. figure 1 It is a topology structure diagram of a dual-plane solution in a Gigabit Ethernet (GE) switching network frame. Such as figure 1 As shown, two switching fabric boards 11 are respectively connected with service boards 12 to form two star switching planes. Each service board 12 sends data to two SFUs 11 at the same time when sending data, and only receives data from one of the SFUs 11 when receiving data. When the receiving channel fails, the service board 12 switches to another receiving channel Receive data from another SFU 11, which is dual-send selective reception. [0003] The internal structure of the service board 12 is as follows: figure 2 As shown, it realizes th...

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): H04Q1/20H04B1/74
Inventor 涂君柳精伟李振亚项能武谢寿波张耀文雷春潘剑锋
Owner HUAWEI TECH CO LTD
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
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap