TWI473467B - Network management device and conflict prevention method - Google Patents

Description

Network management device and method for preventing conflict

The disclosure relates to a network management device, and more particularly to a network management device that can prevent conflicts.

In recent years, with the rapid development of the computer and information industry, various new peripheral devices can be easily connected to personal computers and notebook computers, etc., and peripheral devices may include devices with network management functions. At present, many network management functions can only allow one master. When more than two masters appear in the network, the system will be paralyzed. For example, when a user connects a peripheral device having a network management function to a network that originally has a network management function, the IP address of the electronic device connected to the network may be disordered, resulting in the system being unable to normal work. Therefore, there is a need for a network management device and a method for preventing collisions so that peripheral components and the host can avoid collisions and increase the convenience of use of peripheral components.

The electronic system and the method for preventing conflicts provided by the present invention can prevent conflicts between two master terminals by a prior judgment mechanism to maintain the safety and efficiency of the system operation.

The invention provides a network management device comprising a server, an information processing unit and a server management module. The server is used to perform a network management function. The information processing unit is configured to transmit the at least one first request packet to the at least one first electronic device, and receive the at least one second request packet to reply to the first request packet. Server management module for use as information When the processing unit fails to receive the second request packet from the first electronic device for a predetermined time, the server starts to perform the network management function, wherein the server management module further includes a communication slot interface. The communication slot interface is configured to generate a first request packet when the network management device is connected to the first electronic device, where the first request packet includes a first selection field, and the first selection field has a first identification information, The first identification information represents that the first request packet is used to detect whether the first electronic device in the network has the same network management function as the network management device.

The invention further provides a method for preventing conflicts, which is suitable for a network management device having a network management function. The method for preventing conflict includes transmitting at least one first request packet to the first electronic device when the network management device is connected to the at least one first electronic device, wherein the first request packet includes a first selection field, and the first selection field The bit has a first identification information, wherein the first identification information indicates a detection behavior; determining whether a second request packet for replying to the first request packet is received within a first predetermined time; and when not in the first When the two request packets are received within a predetermined time, the network management function is started.

The apparatus and method of use of various embodiments of the present invention are discussed in detail below. However, it is to be noted that many of the possible inventive concepts provided by the present invention can be implemented in various specific ranges. These specific examples are only intended to illustrate the apparatus and methods of use of the present invention, but are not intended to limit the scope of the invention.

Figure 1 is a block diagram of an electronic system provided by the present invention. Electronic department The system 1000 includes a network management device 100 and at least one electronic device 300-30N. The network management device 100 is configured to connect to at least one electronic device 300-30N through the network 200. The network 200 is an IP network. The electronic devices 300-30N may be electronic devices having the same network management functions as the network management device 100 and/or electronic devices that do not have the same network management functions as the network management device 100. For example, the electronic device 300-30N can be a network sharer or the like, and the invention is not limited herein.

The network management device 100 includes a server 120, an information processing unit 140, and a server management module 160. The server 120 is configured to perform a network management function, such as assigning an internet protocol address (IP address) to the connected electronic devices 300-30N. In an embodiment of the present invention, the network management function assigns an internet protocol address to the connected device via a Dynamic Host Configuration Protocol (DHCP), but the present invention is not limited thereto. Any network management function that does not allow more than two masters to operate simultaneously is within the scope of the present invention. The information processing unit 140 is configured to transmit at least one first request packet P1 to each connected electronic device 300-30N, and receive at least one of the first request packet P1 from the connected electronic device 300-30N. Two request packets P2 and/or at least one third request packet P3. It should be noted that the information processing unit 140 can be used to execute an operating system and a network interface driver, and transmit the packets generated by the server management module 160 to the network 200 through a network protocol, and from the network. 200 receives packets from the electronic devices 300-30N. For example, the information processing unit 140 can communicate with the server management module 160 by using Transmission Control Protocol and Internet Protocol (TCP/IP), and The packets generated by the server management module 160 are transmitted to the network 200 by the transmission control protocol/network protocol, and the packets from the electronic devices 300-30N are received from the network 200 (eg, the second request packet P2 and/or The third request packet P3). The server management module 160 is used to control the operation of the server 120 and to turn on the server 120 in an appropriate environment. In addition, the server management module 160 further includes a communication slot interface 162 (socket). The communication slot interface 162 is configured to generate a first request packet P1 when the network management device 100 is connected to the electronic device 300-30N by using the network 200, where the first request packet P1 includes a first selection field (option). And the first selection field has a first identification information. In an embodiment of the present invention, the first identification information represents that the first request packet P1 is used to detect whether the network 200 has the same network management function as the network management device 100. For example, the first request packet P1 is used to detect whether the network 200 has other servers, and the first identification information is "DHCP sever detect", but the invention is not limited. The form of its string.

In an embodiment of the present invention, when the network management device 100 is connected to the at least one electronic device 300-30N by the network 200, the communication slot interface 162 of the server management module 160 generates at least one first request packet. P1. The information processing unit 140 transmits the first request packet P1 to the connected electronic devices 300-30N via the network 200. Next, the server management module 160 determines whether a second request packet P2 for replying to the first request packet P1 is received from the connected electronic device 300-30N within a first predetermined time.

When the network management device 100 does not receive the second request packet P2 after the first predetermined time, the server 120 is caused to start executing the network management function. For example, when the electronic devices 300-30N to which the network management device 100 is connected do not have the same network management function as the network management device 100, the electronic devices 300-30N cannot be interpreted from the server management module 160. The first request packet P1, and does not reply a second request packet P2 to the network management device 100 according to the first request packet P1.

In addition, when the network management device 100 receives the second request packet P2 in the first predetermined time, the server management module 160 is further configured to determine whether the second request packet P2 includes a second selection field. For example, when at least one of the electronic devices 300-30N connected to the network management device 100 has the same network management function as the network management device 100, the electronic device having the network management function can be interpreted from The first request packet P1 of the server management module 160 is replied to the second request packet P2 to the network management device 100 according to the first request packet P1. In an embodiment of the present invention, the second request packet P2 may include a second selection field, wherein the second selection field includes a second identification information. In another embodiment of the present invention, the second request packet P2 may also not include the second selection field.

When the second request packet P2 received by the network management device 100 does not include the second selection field, the communication slot interface 162 retransmits the first request packet P1 to the current location by the information processing unit 140 after a second predetermined time. Connected electronic devices 300-30N. It is worth noting that the number and type of currently connected electronic devices 300-30N may not be the same as when the network management device 100 is initially connected to the network.

When the second request packet P2 received by the network management device 100 includes the second selection field, the server management module 160 generates an event log (log) and transmits the event log to a management terminal (not shown). . Noteworthy The management terminal may be a remote device or a device connected to the server management module 160 for managing the server management module 160 and the device connected thereto. The invention is not limited herein.

In another embodiment of the present invention, the server management module 160 is further configured to enable a detection mechanism when the network management function of the server 120 is started. In the detection mechanism, the communication slot interface 162 regenerates at least one first request packet P1 after a third predetermined time, and transmits the first request packet P1 to the currently connected electronic device by the information processing unit 140. Next, the server management module 160 determines whether a third request packet P3 for replying to the regenerated first request packet P1 is received from the connected electronic device within a fourth predetermined time. When the network management device 100 does not receive the third request packet P3 after the fourth predetermined time, the server management module 160 continues to cause the communication slot interface 162 to regenerate at least one first request packet P1 after the third predetermined time. . For example, when the electronic device currently connected to the network management device 100 does not have the same network management function as the network management device 100, the electronic device cannot interpret the first request packet from the server management module 160. P1, and does not reply a third request packet P3 to the network management device 100 according to the first request packet P1. When the network management device 100 receives the at least one third request packet P3 for replying to the first request packet P1, the server management module 160 generates an event log and transmits the event log to the management terminal. For example, when at least one of the electronic devices connected to the network management device 100 has the same network management function as the network management device 100, the electronic device with the network management function can be interpreted from the server management. The first request packet P1 of the module 160, and replying to the first request packet P1 The third request packet P3 is sent to the network management device 100. In an embodiment of the present invention, the third request packet P3 may include a third selection field, wherein the third selection field includes a third identification information. In another embodiment of the present invention, the third request packet P3 may not include the third selection field. In an embodiment of the present invention, the second identification information and the third identification information may be "DHCP sever existed", but the invention does not limit the form of the string.

In an embodiment of the present invention, after the server management module 160 transmits the event log to the management terminal, the management terminal can notify the user that the network management is the same as that of the network management device 100 by transmitting a warning or a letter. The function of the electronic device is removed. In another embodiment of the present invention, after the server management module 160 transmits the event log to the management terminal, the management terminal can be forced to have the same configuration as the network management device 100 by the power management device implemented in the power system. The power of the electronic device of the network management function is cut off.

In addition, those skilled in the art can also implement the network management device 100 disclosed in the present invention on other computer system configurations, for example, hand-held devices, personal digital assistants ( Personal digital assistant, PDA) Multiprocessor systems, microprocessor-based or programmable consumer electronics, network computers, minicomputers, mainframes, and the like. The information processing unit 140 may include a single central processing unit (CPU) or a plurality of parallel processing units associated with a parallel processing environment. The network management device 100 can also include a memory (not shown) and a storage device (not Graphic). The memory may include a read only memory (ROM), a flash ROM, and/or a random access memory (RAM) for storage by the information processing unit 140. Program modules, such as operating systems and network interface drivers. Generally, a program module includes a routine, a program, an object, a component, etc., for performing a message compression function. The present invention can also be implemented in a distributed computing environment, the computing of which is performed by a remote processing device coupled to the communications network. In a decentralized environment, the execution of the embedded device's execution tracking function may be performed by both local and multiple remote computer systems. The storage device may comprise a hard disk device, a floppy disk device, a compact disk device or a flash drive device.

Figure 2 is a flow chart of the method for preventing conflicts provided by the present invention. The conflict prevention method is applicable to a network management device 100 having a network management function, wherein the network management function assigns an internet protocol address (IP address) to the connected device via a Dynamic Host Configuration Protocol (DHCP). . When the network management device 100 is connected to the at least one electronic device 300-30N via the network 200, the flow begins in step S500.

In step S500, the communication slot interface 162 of the server management module 160 generates at least one first request packet P1, and the information processing unit 140 transmits the first request packet P1 to the connected electronic device 300 through the network 200. -30N, wherein the first request packet P1 includes a first selection field, and the first selection field has a first identification information. In an embodiment of the present invention, the first identification information may be "DHCP sever detect", but the invention does not limit the form of the string.

Next, in step S502, the server management module 160 determines whether At least one second request packet P2 for replying to the first request packet P1 is received from the connected electronic device 300-30N within a first predetermined time. When the network management device 100 does not receive the second request packet P2 within the first predetermined time, the flow proceeds to step S504. When the network management device 100 receives the second request packet P2 within the first predetermined time, the flow proceeds to step S508. For example, when the electronic devices 300-30N to which the network management device 100 is connected do not have the same network management function as the network management device 100, the electronic devices 300-30N cannot be interpreted from the server management module 160. The first request packet P1, and does not reply a second request packet P2 to the network management device 100 according to the first request packet P1. In addition, when at least one of the electronic devices 300-30N connected to the network management device 100 has the same network management function as the network management device 100, the electronic device having the network management function can interpret the server from the server. The first request packet P1 of the management module 160 is replied to the second request packet P2 to the network management device 100 according to the first request packet P1. In an embodiment of the present invention, the second request packet P2 may include a second selection field, wherein the second selection field includes a second identification information. In another embodiment of the present invention, the second request packet P2 may also not include the second selection field. In an embodiment of the present invention, the second identification information may be "DHCP sever existed" to indicate that the electronic device transmitting the second request packet P2 has the same network as the network management device 100. Management functions, but the invention does not limit the form of its strings.

In step S504, the server management module 160 causes the network management function of the server 120 to begin execution. Next, the flow proceeds to step S506. In step S506, the server management module 160 starts a detection mechanism, which Please refer to Figure 3 for a description of the detection mechanism. The flow ends in step S506.

In step S508, the server management module 160 is further configured to determine whether the second request packet P2 includes the second selection field. When the second request packet P2 does not include the second selection field, the flow proceeds to step S510. When the second request packet P2 includes the second selection field, the flow proceeds to step S512.

In step S510, the server management module 160 determines whether it exceeds a second predetermined time. When the second predetermined time is exceeded, the flow returns to step S500; otherwise, the server management module 160 continues to determine whether the second predetermined time is exceeded.

In step S512, the server management module 160 generates an event log (log) and transmits the event log to the management terminal. It should be noted that the management terminal may be a remote device or a device connected to the server management module 160 for managing the server management module 160 and the device connected thereto. The invention is not limited herein. The flow ends in step S512.

Figure 3 is a flow chart of the detection mechanism provided by the present invention. The detection mechanism is applicable to the network management device 100 having the network management function, wherein the network management function assigns an internet protocol address (IP address) to the connected device via a Dynamic Host Configuration Protocol (DHCP). . The flow begins in step S600.

In step S600, the server management module 160 determines whether a third predetermined time has elapsed. When the third predetermined time is exceeded, the flow proceeds to step S602; otherwise, the server management module 160 continues to determine whether the third predetermined time is exceeded.

In step S602, the communication slot interface 162 regenerates at least one first request packet P1, and encapsulates the first request packet P1 by the information processing unit 140. Transfer to the currently connected electronic device.

Next, in step S604, the server management module 160 determines whether a third request packet P3 for replying to the regenerated first request packet P1 is received from the connected electronic device within a fourth predetermined time. When the network management device 100 receives the third request packet P3 within the fourth predetermined time, the flow proceeds to step S606; otherwise, the flow returns to step 600. For example, when the electronic device currently connected to the network management device 100 does not have the same network management function as the network management device 100, the electronic device cannot interpret the first request packet from the server management module 160. P1, and does not reply a third request packet P3 to the network management device 100 according to the first request packet P1. In addition, when at least one of the electronic devices connected to the network management device 100 has the same network management function as the network management device 100, the electronic device having the network management function can be interpreted from the server management module. The first request packet P1 is 160, and a third request packet P3 is replied to the network management device 100 according to the first request packet P1. In an embodiment of the present invention, the third request packet P3 may include a third selection field, wherein the third selection field includes a third identification information. In another embodiment of the present invention, the third request packet P2 may also not include the third selection field. In an embodiment of the present invention, the third identification information may be "DHCP sever existed", but the invention does not limit the form of the string.

In step S606, when the third request packet P3 is received, an event log is generated, and the event log is transmitted to a management terminal. It should be noted that the management terminal may be a remote device or a device connected to the server management module 160 for managing the server management module 160 and the electronic device connected thereto. The present invention is not limited herein.

It should be noted that the first predetermined time, the second predetermined time, the third predetermined time, and the fourth predetermined time are designed by the user, and the second and third predetermined times may also be random random numbers. Time for confirming whether there is an electronic device having the same network management function as the network management device 100 in the network 200, and the first and fourth predetermined times are used to wait for an electronic device reply request connected to the network 200. The time of the packet. For example, the second and third predetermined times may be five minutes or thirty minutes, and the first and fourth predetermined times may be three or five seconds. In addition, the second predetermined time may be different from the third predetermined time, and the third predetermined time may be different from the fourth predetermined time.

The electronic system 100 and the method for preventing conflicts provided by the present invention can prevent conflicts between two master terminals by a prior judgment mechanism to maintain the safety and efficiency of the system operation.

The method of the invention, or a particular type or portion thereof, may exist in the form of a code. The code can be stored in a physical medium such as a floppy disk, a CD, a hard disk, or any other machine readable (such as computer readable) storage medium, or is not limited to an external form of computer program product, wherein When the code is loaded and executed by a machine, such as a computer, the machine becomes a device for participating in the present invention. The code can also be transmitted via some transmission medium, such as a wire or cable, fiber optics, or any transmission type, where the machine becomes part of the program when it is received, loaded, and executed by a machine, such as a computer. Invented device. When implemented in a general purpose processing unit, the code combination processing unit provides a unique means of operation similar to application specific logic.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent. In addition, any of the objects or advantages or features of the present invention are not required to be achieved by any embodiment or application of the invention. In addition, the abstract sections and headings are only used to assist in the search of patent documents and are not intended to limit the scope of the invention.

1000‧‧‧Electronic system

100‧‧‧Network management device

120‧‧‧Server

140‧‧‧Information Processing Unit

160‧‧‧Server Management Module

162‧‧‧Communication slot interface

200‧‧‧Network

300-30N‧‧‧Electronic device

P1, P2, P3‧‧‧ request packets

1 is a block diagram of a network management apparatus provided by the present invention; FIG. 2 is a flowchart of a method for preventing conflicts provided by the present invention; and FIG. 3 is a flowchart of a detection mechanism provided by the present invention;

1000‧‧‧Electronic system

100‧‧‧Network management device

120‧‧‧Server

140‧‧‧Information Processing Unit

160‧‧‧Server Management Module

162‧‧‧Communication slot interface

200‧‧‧Network

300-30N‧‧‧Electronic device

P1, P2, P3‧‧‧ request packets

Claims (8)

A network management device includes: a server for performing a network management function; an information processing unit configured to transmit at least one first request packet to the at least one first electronic device by using a network, and Receiving at least one second request packet for replying to the first request packet; and a server management module, configured to: when the information processing unit does not receive the first electronic device from the first electronic device When the packet is requested, the server is configured to perform the network management function, and the server management module further includes: a communication slot interface, configured to generate when the network management device is connected to the first electronic device The first request packet, wherein the first request packet includes a first selection field, and the first selection field has a first identification information, wherein the first identification information represents the first request packet is used for detecting Detecting whether the above-mentioned first electronic device having the same network management function as the network management device in the above network, wherein the above The server management module is further configured to: when receiving the second request packet, determine whether the second request packet includes a second selection field, and when the received second request packet does not include the second selection In the field, the communication slot interface retransmits the first request packet to the connected first electronic device and/or the at least one second electronic device by the information processing unit after a second predetermined time. The network management device according to claim 1, wherein The server management module is further configured to generate an event log when the received second request packet includes the second selection field, and send the event log to a management terminal, where the second identification information is The first electronic device indicating that the second request packet is transmitted has the same network management function as the network management device. The network management device of claim 1, wherein the server management module is further configured to: when the network management function starts to be executed, to enable a detection mechanism, wherein the detection mechanism comprises the communication slot After the third predetermined time, the interface retransmits the first request packet to the connected first electronic device and/or the at least one second electronic device by using the information processing unit, and receives the reply to the first electronic device When at least one third request packet of the request packet is generated, an event log is generated, and the event log is transmitted to a management terminal. The network management device of claim 1, wherein the network management function assigns an internet protocol address to the connected device via a dynamic host setting protocol. A method for preventing conflicts is applicable to a network management device having a network management function, wherein the method for preventing collision includes: transmitting at least one first request packet when the network management device is connected to at least one first electronic device The first electronic device, wherein the first request packet includes a first selection field, and the first selection field has a first identification information, wherein the first identification information represents the first request packet is used to Detecting whether the first electronic device having the same network management function as the network management device in the network is determined; determining whether to receive the first message in a first predetermined time At least one second request packet of the request packet; when the second request packet is not received within the first predetermined time, causing the network management function to start executing; when receiving the second request packet, determining the foregoing Whether the second request field includes a second selection field, wherein the second selection field has a second identification information, wherein the second identification information indicates that the first electronic device that transmits the second request packet has the network The same network management function of the management device; when the received second request packet does not include the second selection field, determining whether the second predetermined time is exceeded; and when the second predetermined time is exceeded, retransmitting the foregoing The first request is packetized to the connected first electronic device and/or at least one second electronic device. The method for preventing conflicts according to claim 5, further comprising: generating an event log when the received second request packet includes the second selection field, and transmitting the event log to a management terminal. The method for preventing conflicts as described in claim 5, further comprising: after causing the network management function to start executing, starting a detection mechanism, wherein the detecting mechanism comprises: determining whether a third predetermined time is exceeded; Retrieving the first request packet to the connected first electronic device and/or the at least one second electronic device when the third predetermined time is exceeded; determining whether to receive the reply in a fourth predetermined time At least one third request packet of the first request packet; When the third request packet is received in the fourth predetermined time, an event log is generated, and the event log is transmitted to a management terminal. The method of preventing conflicts according to claim 5, wherein the network management function assigns an internet protocol address to the connected device via a dynamic host setting protocol.