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

Teaching experimental approach for slicing and regrouping process of IP datagram

A technology of IP datagrams and experimental methods, applied in the field of teaching experiments, can solve the problems that students are not easy to accept and understand.

Inactive Publication Date: 2008-07-23
HARBIN INST OF TECH
View PDF0 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that in the existing teaching, it is difficult for students to accept and understand the principle and working process of fragmentation and reassembly of abstract and complex IP datagrams by using text descriptions and diagrams, the present invention provides an IP Teaching Experiment Method of Datagram Fragmentation and Reassembly Process

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
  • Teaching experimental approach for slicing and regrouping process of IP datagram
  • Teaching experimental approach for slicing and regrouping process of IP datagram
  • Teaching experimental approach for slicing and regrouping process of IP datagram

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0012] Specific embodiment one: the fragmentation of the IP datagram described in this embodiment and the teaching experiment method of recombination process are realized by the following device, and described device is made up of network bus 20, master node 1 and two slave nodes, The master node 1 and the two slave nodes are all connected to the network bus 20, the master node 1 is to realize IP datagram message fragmentation and message routing functions, and the first slave node 2 in the two slave nodes realizes the structure original The function of the IP datagram message, the second slave node 3 is responsible for receiving the fragmented IP datagram message, and reorganizing the fragmented message, the structure of the master node and the two slave nodes is the same , are all made up of microprocessor 10, keyboard 13, Ethernet controller 11, Ethernet interface circuit 12, liquid crystal display 14, the signal output end of keyboard 13 is connected with the keyboard data ...

specific Embodiment approach 2

[0031] Specific embodiment two: the difference between this embodiment and the fragmentation of the IP datagram described in specific embodiment one and the teaching experiment method of the reassembly process is that the length of the original IP datagram set up in step B is 588 bytes; The original IP datagram is shown in Figure 4;

[0032] In step D, since the length 588 bytes of the original IP datagram is greater than the 296 bytes of the MTU of the interface between the master node 1 and the second slave node 3, the original IP datagram needs to be fragmented; the first piece of IP datagram Referring to Figure 5, the message length of the first piece of datagram is less than the MTU of the interface connecting the master node 1 and the second slave node 3, which is 292 bytes, and the data carried in the second piece of IP datagram is the data in the original IP datagram Remove the remaining data in the first piece of IP datagram, and the length is 276 bytes.

[0033] In ...

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

A teaching experimental method of IP datagram fragment and assembly process relates to a teaching experimental method, resolving the problem that students feel hard to accept and understand because existing teaching employs text description and diagram to explain abstract and complicated principle and working process of IP datagram fragment and assembly. IP address of a first slave node and IP address of a second slave node are arranged to respectively belong to two subnets, a main node is arranged to be a routing node and MTU of the connecting interface of the main node and the two slave nodes are respectively 1500 bytes and 296 bytes. Original IP datagram is formed at the first slave node and then sent to the second slave node. The main node judges whether the original IP datagram needs fragmenting, and if needs, the main node fragments the original IP datagram and transmits the fragments, the second slave node receives and assembles the fragmented IP datagram. The invention enables learners to know and familiarize IP datagram fragment and assembly process by leading learners to participate IP datagram fragment and assembly process. The invention is suitable for teaching systems of various educational institutions.

Description

technical field [0001] The invention relates to a teaching experiment method. Background technique [0002] At present, the Ethernet technology used in conjunction with the TCP / IP protocol stack is being increasingly used in industrial sites. In the field of industrial control, with the continuous expansion of the scale of the control system and the geographical dispersion of physical equipment such as controlled objects and measurement and control devices is becoming more and more obvious, the management needs to get rid of the shackles of geographical location of resources so that they can browse industrial control systems through the Internet. On-site data to achieve "integration of control and management", which requires industrial control nodes to be connected to the Internet. Different LAN physical layers have different MTUs (Maximum Transmission Units). When the length of the IP datagram to be transmitted is greater than the MTU of the next-hop network, the network n...

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): G09B25/00G09B25/02
Inventor 佟为明林景波李中伟刘勇赵志衡高蕾赵晶
Owner HARBIN INST OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com