CN102708726A - Network comprehensive training platform on basis of virtualization and embedded platform - Google Patents

Abstract

The invention relates to a Genisys comprehensive network training system developed for the computer major and the majors related to the computer major in the higher education/higher vocational colleges. The system comprises a PC Terminal (Personal Computer Terminal) and a Serverbox experimental box; the PC Terminal operates on an experimental PC and comprises a PC Terminal client program, a protocol analyzer, a virtual machine and a SSH (Suppression Subtractive Hybridization) client; the Serverbox experimental box is an operating embedded linux breadboard and is integrated with a network/safety software service; and experimental types covered by the system comprise a network command type, a protocol analysis type, a network service type, a network safety type and a network programming type. A protocol analysis type experiment supports an interference system, and therefore, a student can decompose the step of protocol interaction, makes an interference decision and controls the interaction process of a protocol so as to deeply understand the working principle of the protocol. The student can complete the related experiment in the stand-alone environment and can also combine a plurality of Serverboxes to develop the experiment.

Description

Based on the real standard of network synthesis platform virtual and embedded platform

Technical field

The present invention's design is realized by Intel Virtualization Technology, ARM embedded platform, built-in Linux etc.; Covering comprises the networking command class; The protocal analysis class; The network service class, network security class, a kind of Genisys integrated network experience system of network programming class experiment towards high/School of High Profession Technology's computing machine and computer-related speciality exploitation.

Background technology

(1) Intel Virtualization Technology

Intel Virtualization Technology is meant that computer components are moving on the virtual basis rather than on the real basis.Intel Virtualization Technology can enlarge the capacity of hardware, simplifies the process that reconfigures of software.In essence; Virtual is exactly by the software module that is positioned at lower floor; Through the last layer software module provide one with the on all four interface method of its original running environment of expecting, take out virtual software or hardware interface, make upper layer software (applications) to run directly on the virtual environment.

Be to communicate under a lot of situation of operating system, decide its visit all virtual machines in the system by VMM with hardware through virtual machine monitor VMM (Virtual Machine Monitor).In the pure software virtualization solution, the position of VMM in software suite is the residing position of operating system on the traditional sense, and the position of operating system is the residing position of application program on the traditional sense.

Virtual machine is to the abstract of true computer environment and simulation; Virtual machine monitor VMM (Virtual Machine Monitor) need manage their states for each virtual machine distributes a sets of data structure; The a complete set of register that comprises virtual processor; The operating position of physical memory, state of virtual unit or the like.During the VMM scheduling virtual machine, its partial status is returned in the host computer system.Host-processor directly moves the machine instruction of Guest OS, because Guest OS operates in low privilege level, when the privileged mode of access host system, it is unusual that insufficient permission causes host-processor to produce, and will move to weigh and give VMM.In addition, external interrupt also can cause the VMM operation.VMM possibly write back to the current state of this virtual machine in the status data structure earlier by needs, and on behalf of Guest OS, the reason that the analyzing virtual machine is hung up carry out corresponding privileged operation then.At last, VMM will move power and give back Guest OS, and Guest OS is from the interrupted local execution that continues last time, or the virtual interruption that processing VMM " plug " goes into is with unusual.

(2) ARM embedded platform

Arm processor is the Embedded RISC microprocessor of a kind of 16/32 high-performance, low cost, low-power consumption.The remarkable advantages of embedded system is can be embedded in any miniature or miniature instrument equipment.The developing instrument of ARM application software has composing software, assemble software, link software, debugging software, embedded real-time operating system, built-in function, evaluation board, JTAG emulator etc. respectively according to the difference of function.

(3) built-in Linux

Built-in Linux is that the (SuSE) Linux OS with increased popularity carries out cutting and revises a kind of operating system that makes it on embedded computer system, to move.It is widely used in the fields such as mobile phone, personal digital assistant, media player, consumption electronic products and Aero-Space.Built-in Linux is exactly many advantages of utilizing self, applies it in the embedded system.Its advantage is: copyright is free, excellent performance, and software transplanting is easy; Code is open, and many application software supports are arranged, and the application product construction cycle is short; New product release speed; Good real-time performance, stability, security being arranged, and be applicable to multiple CPU and multiple hardwares platform, is a cross-platform system.

Summary of the invention

The present invention is a kind of based on Intel Virtualization Technology, ARM embedded platform and embedded Linux system realization, a kind of Genisys integrated network experience system towards high/School of High Profession Technology's computing machine and computer-related speciality exploitation.

Traditional network implementation exercising system uses a large amount of network equipments, and utilization factor is low, and brand differentiation is big; Required cost is high, and machine quantity is few, can not satisfy a large amount of student's requirements, and Most students is failed practical operation, and only " copy " laboratory report is reported to the leadship after accomplishing a task; Can not understand protocol theory itself well, well observation experiment reciprocal process.In order to address this problem, we have researched and developed the network implementation exercising system that a cover is realized based on Intel Virtualization Technology, ARM embedded platform and embedded Linux system.

System needs earlier on experimental machine to download the PCTerminal installation procedure and install from server, confirm with ServerBox between Serial Port Line be connected correctly with netting twine.The student starts ServerBox, operation PCTerminal program, authenticating identity; Experiment is selected by the entering system, experimentizes according to experiment instruction; Simultaneously, the student can also upload laboratory report to server, also can click the examination module among the PCTerminal; Enter into the examination part, referring to mock examination.The teacher can visit E3 ePracticor server-centric, checks each student's laboratory report and total marks of the examination.

As scheme explanation

Fig. 1 is expression product allocation figure.

Fig. 2 is an expression array mode one.

Fig. 3 is an expression array mode two.

Fig. 4 is an expression array mode three.

Fig. 5 is an expression PCTerminal master surface chart.

Fig. 6 is an expression ServerBox master surface chart.

With reference to the accompanying drawings implementation method of the present invention is described:

1, equivalent network topology

The experience system that utilizes above-mentioned equivalent network topology to be realized can be used to manage experimental system, and accomplishes the part experiment.Utilize these hardware, can also form the multiple network topological structure freely.

(1) array mode one

This be a kind of pair of network segment single channel by network topology structure (as shown in Figure 2), utilize SeverBox to realize routing function.

(2) array mode two

This is a kind of three network segment double route network topology structures (as shown in Figure 3), utilizes two SeverBox to realize routing function.

(3) array mode three

This network interface card bridge joint that to be the virtual machine that comprises through PCTerminal link to each other with SeverBox with PC, thus fictionalize the network topology (as shown in Figure 4) of the LAN that comprises 3 PC with that cover experimental facilities.

2, workflow

(1) starts ServerBox

Serverbox is tested box (as shown in Figure 6) be connected, manually opened Serverbox experiment box with the experiment main frame.Serverbox experiment box is an embedded hardware platform that makes up based on arm processor; Possess Multi-netmouth/USB/ liquid crystal display/keyboard, the operation built-in Linux operating system integrated is tested required gateway/network security service; Be configured initialization according to the selected experiment of student; Can simulate exchange/route/firewall box, the student can make up many Serverbox complex design network topologies, carries out route/safety experiment.

(2) get into PCTerminal master interface, carry out corresponding operating

Open PCTerminal, get into PCTerminal master interface (as shown in Figure 5) according to relative set.Experimental machine control desk PCTerminal operates on the experiment PC; Whether be responsible for monitoring in real time is connected normal with the serial ports of Serverbox experiment box; According to user-selected experiment title Serverbox experiment box is carried out initial configuration; For the user provides experiment instruction explanation, directly the calling of supported protocol analyzer, virtual machine, ssh client, support a key with system reducing to original state.

(3) intervention functions

The experiment of protocal analysis class supports to intervene mechanism; Protocol communication carries out between experiment PC and Serverbox experiment box; Support is decomposed the step of protocol interaction, and the student makes intervention decision-making, the reciprocal process of control protocol through keyboard on Serverbox; Check the intervention process through liquid crystal display, thus the principle of work of profound understanding agreement.

3, systemic-function

In this system, the user is divided into student and teacher, and two kinds of users employed function in system is described below:

(1) student

The student starts ServerBox, operation PC Terminal program, and authenticating identity, experiment is selected by the entering system, experimentizes according to experiment instruction, uploads laboratory report to server; Simultaneously, can also click the examination module among the PC Terminal, enter into the examination part, participate in mock examination.

(2) teacher

The teacher can visit E3 ePracticor server-centric, checks each student's test report and total marks of the examination; After each test,, need to recover serverbox/ virtual machine default conditions for not influencing the laboratory of next class; Simultaneously, can also upgrade experiment.

4, system forms

Experience system is made up of experimental machine control desk, embedded experiment box and experiment classification three parts.Wherein testing control desk comprises: PCTerminal operates on the experiment PC, comprises PCTerminal client-side program, protocol analyzer, virtual machine, ssh client; Embedded experiment box comprises: Serverbox experiment box is the brassboard of an operation embedded Linux, integrated network/fail-safe software service.The experiment kind that the experiment classification covers comprises the networking command class, protocal analysis class, network service class, network security class, network programming class.

Claims (4)

1. Genisys integrated network experience system towards the exploitation of high/School of High Profession Technology's computing machine and computer-related speciality, system comprises that based on virtual and embedded system technology PCTerminal and Serverbox test box, is characterized in that:

Experimental machine control desk: PCTerminal operates on the experiment PC, comprises PCTerminal client-side program, protocol analyzer, virtual machine, ssh client;

Embedded experiment box: Serverbox experiment box is the brassboard of an operation embedded Linux, integrated network/fail-safe software service.

The experiment classification: the experiment kind that system covers comprises the networking command class, protocal analysis class, network service class, network security class, network programming class.The experiment of protocal analysis class is supported to intervene mechanism, and the student can decompose the step of protocol interaction, as intervention policy, and the reciprocal process of control protocol, thereby the principle of work of profound understanding agreement.

The combination of experiment topology: the student can accomplish related experiment under stand-alone environment, also can make up many Serverbox and carry out experiment.

2. experimental machine control desk as claimed in claim 1 is characterized in that:

Experimental machine control desk PCTerminal operates on the experiment PC; Whether be responsible for monitoring in real time is connected normal with the serial ports of Serverbox experiment box; According to user-selected experiment title Serverbox experiment box is carried out initial configuration; For the user provides experiment instruction explanation, directly the calling of supported protocol analyzer, virtual machine, ssh client, support a key with system reducing to original state.

3. embedded experiment box as claimed in claim 1 and the combination of experiment topology is characterized in that:

Serverbox experiment box is an embedded hardware platform that makes up based on arm processor; Possess Multi-netmouth/USB/ liquid crystal display/keyboard, the operation built-in Linux operating system integrated is tested required gateway/network security service; Be configured initialization according to the selected experiment of student; Can simulate exchange/route/firewall box, the student can make up many Serverbox complex design network topologies, carries out route/safety experiment.

4. agreement intervention as claimed in claim 1 is characterized in that:

The experiment of protocal analysis class supports to intervene mechanism; Protocol communication carries out between experiment PC and Serverbox experiment box; Support is decomposed the step of protocol interaction, and the student makes intervention decision-making, the reciprocal process of control protocol through keyboard on Serverbox; Check the intervention process through liquid crystal display, thus the principle of work of profound understanding agreement.

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