CN100366018C - A method for realizing interconnection of communication units - Google Patents

Abstract

The present invention provides a method for realizing the interconnection of communication units, the key of which is that the communication unit uses the first set of media access control layer (MAC) address and Internet protocol (IP) address to interact with the control unit through the network cable to obtain the The second set of MAC address and IP address. First, the communication unit obtains the first set of MAC address and IP address according to its own hardware information, and then uses the obtained first set of MAC address and IP address to interact with the control unit with the MAC address and IP address set in advance, and connects the control unit through the network cable. Obtain basic information and address information; then restart according to the basic information, obtain the second set of MAC address and IP address for communication according to the address information, and realize the interconnection of communication units. By applying the solution of the invention, the communication can quickly load application programs and data through the network cable, thereby quickly completing the interconnection of the communication units, and the communication unit actively initiates the process of obtaining the network address, which can greatly reduce the load of the control unit.

Description

A method for realizing interconnection of communication units

technical field

The invention relates to the technology in the field of data communication, in particular to a method for realizing the interconnection of communication units.

Background technique

A network system is generally composed of multiple sets of network equipment interconnected, and each set of network equipment is a collection of carrier-grade equipment that can provide specific services and functions. Generally, a set of network equipment is composed of large-scale software and hardware. The hardware is composed of a large number of computers, single boards, cables, optical fibers, network cables, machine frames, racks, routers, power It can be seen as a system. Among them, devices such as computers and single boards with communication functions are generally called communication units.

In order to realize communication between multiple sets of network equipment and among communication units within each set of network equipment, the communication units need to be interconnected. Generally speaking, there are two necessary conditions for the interconnection between communication units: one is that each communication unit corresponds to a unique set of Media Access Control (MAC, Media Access Control) layer address and Internet Protocol (IP , Internet Protocol) address; the second is that each communication unit needs to load the basic application program and basic data to maintain its normal operation and ensure the normal communication function, and then run the basic application program. The process of running the basic application program is also called startup process. Of course, different communication units may have different functions, and the contents of their basic application programs and basic data may also be different.

For the first prerequisite to realize the interconnection of communication units, it is generally necessary to configure MAC addresses and IP addresses for the communication units. At present, the configuration methods of the MAC address of the communication unit generally include fixed configuration, manual configuration and automatic configuration, while the configuration of the IP address of the communication unit generally includes manual configuration and automatic configuration. Among them, the fixed configuration method of the MAC address means that the MAC address of the communication unit is configured during the production process of the network equipment. The disadvantage is that the user cannot change it, and the use is inflexible. The manual configuration method of MAC address and IP address means that the user manually assigns MAC addresses and IP addresses to all communication units in the network device according to needs. Due to the large number of communication units in a set of network equipment, the manual configuration process is not only cumbersome, but also prone to errors. The automatic configuration method of MAC address and IP address means that the network equipment will automatically generate the MAC address and IP address of the communication unit when it is connected to the network. The automatic configuration method can be flexibly configured according to user needs, and greatly saves labor and is less prone to errors, and will be more and more widely used.

For the second necessary condition to realize the interconnection of communication units, it is generally to load the basic application program and basic data to the communication unit through physical connection through serial port lines or cables.

In the prior art, when the MAC address and IP address of the communication unit are automatically configured, the method for realizing the interconnection of the communication units is: first designate a communication unit as the control unit, and store the algorithm for configuring the MAC address and IP address in the In the control unit, it is responsible for assigning the MAC address and IP address of other communication units. When a communication unit is to be connected to the communication system, the communication unit first loads its own basic application program and basic data through a serial port cable or cable, etc., and then performs the startup process of the communication unit, and starts receiving the data sent by the control unit The function of its own data packets; while the control unit regularly and actively sends data packets carrying MAC addresses and IP addresses to the ports corresponding to the communication units not connected to the system, or regularly scans the ports, when it is determined that there is a new access After the communication unit sends the data packet carrying the MAC address and IP address to the communication unit; after the communication unit to access the communication system receives the data packet, it completes its own MAC address and IP address configuration work according to the information in the data packet. Wherein, the control unit may be a central control unit responsible for configuring the network addresses of all communication units, or an upper-level control unit that only configures network addresses for its own lower-level communication units.

The shortcoming of prior art is: (1) because communication unit self also does not have MAC address and IP address before disposing, can only carry out loading basic application program and basic data by serial port line or cable etc., and serial port line or cable etc. The transmission speed is very slow, resulting in a very slow interconnection process of communication units. (2) The control unit needs to regularly send data packets carrying MAC addresses and IP addresses to all communication units that have not yet connected to the system, or need to regularly scan the ports connected to communication units that have not yet connected to the system. When a new communication unit accesses, the data packet of the MAC address and the IP address is sent to the newly accessed communication unit. In actual work, the number of communication units needed in the system is determined according to the specific situation. When no new communication units need to be added, the control unit still needs to perform the work of sending data packets or scanning, which increases the workload of the control unit. , and a waste of network resources. (3) After the communication unit determines its own MAC address and IP address, it is generally difficult to modify it. In practical applications, it is sometimes necessary to flexibly modify the MAC address and IP address of the communication unit. The prior art cannot meet this practical requirement.

It can be seen that, in the prior art, there is no fast interconnection method that can be actively obtained by the communication unit and can flexibly modify its own network address.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a method for realizing interconnection of communication units, which can be actively obtained by communication units, can flexibly modify its own network address, and can realize rapid interconnection of communication units. In order to achieve the above object, the technical scheme proposed by the present invention is:

A method for realizing the interconnection of communication units, characterized in that the method comprises the following steps:

a. The communication unit obtains the first set of media access control layer MAC address and Internet Protocol IP address for loading according to its own hardware information;

b. The communication unit uses the obtained first set of MAC address and IP address, loads the basic information and address information from the control unit through the network cable, restarts according to the basic information, and obtains the second set of MAC address and address information for communication according to the address information IP address to realize the interconnection of communication units.

Preferably, the method for the communication unit in step b to load the basic information and address information from the control unit through a network cable is:

The communication unit sends a loading request message to the control unit through the network cable, and the control unit returns a loading response message carrying basic information and address information to the communication unit through the network cable, and the communication unit loads the basic information and address information to itself.

Preferably, the basic information described in step b is the basic application program and basic data of the communication unit;

The address information described in step b is the communication address calculation program and address calculation related data.

Preferably, the basic information described in step b is the basic application program and basic data of the communication unit;

The address information in step b is the second set of MAC address and IP address of the communication unit determined in advance by the control unit.

Preferably, the method for determining the second set of MAC address and IP address of the communication unit previously determined by the control unit is:

The control unit determines the second set of MAC address and IP address of the communication unit according to the communication address calculation program and address calculation related data.

Preferably, the method for the communication unit in step a to obtain the first set of MAC address and IP address according to its own hardware information is:

a1. After the communication unit is powered on, read its own hardware information;

a2. The communication unit uses its own hardware information as calculation parameters, and obtains the first set of MAC address and IP address according to the calculation parameters and the loaded address calculation program saved in advance.

Preferably, the self-hardware information is self-device number, chassis number and slot number.

Preferably, the method for reading its own device number, chassis number and slot number described in step a1 is:

The communication unit reads the dial switch information identifying its own device number, chassis number and slot number; or,

The communication unit reads the dial switch information identifying its own equipment number and chassis number, and reads its own slot number through the function of reading the slot number.

Preferably, when the communication unit wants to modify the address, the step b further includes:

Reset the hardware information of the communication unit, and the communication unit obtains the new first set of media access control layer MAC address and Internet Protocol IP address for loading according to the hardware information re-modified by itself; the communication unit uses the new first set of MAC address and IP address, load new basic information and address information from the control unit through the network cable, and restart according to the new basic information, obtain a new second set of MAC address and IP address for communication according to the new address information, and realize Interconnection of communication units.

In summary, a method for interconnecting communication units proposed by the present invention has the following advantages:

(1) Since the communication unit can automatically generate the first set of MAC address and IP address according to its own hardware information after it is powered on, and the communication unit and the control unit are connected with a network cable, so after generating the first set of MAC address and IP address, After the IP address, it can be quickly loaded using the TCP/IP protocol, thereby speeding up the interconnection speed of the communication units.

(2) The communication unit uses the dial switch to identify its own hardware information, and the position of the communication unit can be flexibly placed or changed without being limited by the actual physical space, that is, it is not necessary to always fix the communication unit in a certain slot of a certain chassis bit. When the communication unit changes its physical location, it only needs to modify the broadcast code switch to re-obtain new hardware information identifying itself, thereby obtaining a new MAC address and IP address.

(3) Since the communication unit actively sends a loading request message to the control unit, and then performs address configuration work, there is no need for the control unit to send data packets to the communication unit regularly, or to scan ports regularly, which can reduce the workload of the control unit and save network resources. .

Description of drawings

Fig. 1 is the flowchart of realizing the scheme of the present invention;

Fig. 2 is a flow chart of an embodiment of the solution of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The basic idea of the present invention is: the communication unit obtains the first set of media access control layer (MAC) address and Internet Protocol (IP) address for loading according to its own hardware information; Obtain the basic information and address information from the control unit, then start the process according to the basic information, obtain the second set of MAC address and IP address for communication according to the address information, and complete the interconnection of the communication units.

Fig. 1 is the flowchart of realizing the scheme of the present invention. As shown in Figure 1, the present invention realizes that the method for communication unit configuration network address comprises the following steps:

Step 101: The communication unit obtains the first set of MAC address and IP address according to its own hardware information;

Here, the first set of MAC address and IP address is the network address of the communication unit, which is used to load basic information and address information.

Step 102: the communication unit obtains the basic information and address information from the control unit through the network cable by using the obtained first set of MAC address and IP address;

Here, the basic information includes basic application programs and basic data, and the address information may be information including communication address calculation programs and address calculation-related data, or the calculated network address information of the communication unit used for communication. Among them, the basic application program and basic data are necessary programs and data for maintaining the normal operation and normal communication of the communication unit.

Step 103: The communication unit restarts according to the obtained basic information;

Step 104: The communication unit obtains a second set of MAC address and IP address for communication according to the address information.

In the present invention, in order to distinguish the two processes of loading and communication, two sets of network addresses need to be assigned to the communication unit: the first set of network addresses is used for loading, and the second set of network addresses is actually used for communication. After obtaining the first set of network addresses, it can be quickly loaded through the network cable and obtain the second set of network addresses; after that, the communication unit discards the first set of network addresses and directly uses the second set of network addresses for communication. Among them, the first set of network addresses does not conflict with the second set of network addresses, the first set of network addresses of all communication units used for loading do not conflict with each other, and the second set of network addresses of all communication units used for communication do not conflict with each other.

In the present invention, there are two methods for the communication unit to obtain its own hardware information: one is to read the pre-set DIP switch, and the other is to configure data. Among them, the way to read the pre-set DIP switch is: set the DIP switch to a predetermined position, the "on" of each DIP switch can represent "1", and "OFF" can represent "0", Several DIP switches can identify hardware information such as the equipment number, frame number and slot number of the communication unit itself; the communication unit can directly read the information on the signal line connected to the DIP switch to obtain its own hardware information . The data configuration method is as follows: the system first stores the hardware information of the communication unit in the control unit in the form of a certain file, and then transmits it to the communication unit through a serial line or cable, and the communication unit obtains its own hardware information from the file.

In the present invention, each communication unit stores a loading address calculation program, and when the communication unit is powered on, it can obtain the first set of MAC address and IP address according to its own hardware information and the loading address calculation program.

Fig. 2 is a flow chart of an embodiment of the solution of the present invention. In this embodiment, there are 8 sets of equipment that need to be interconnected, each set of equipment has 100 communication units, and each communication unit has 24 DIP switches, of which 8 DIP switches identify the equipment to which the communication unit itself belongs 8 DIP switches identify the chassis number to which the communication unit belongs, and the other 8 DIP switches identify the slot number to which the communication unit itself belongs. In this embodiment, all communication units are directly connected to the control unit through network cables, and each set of equipment is also connected with network cables.

As shown in Figure 2, the steps in this embodiment to realize the method for the communication unit to configure the network address are:

Step 201: The communication unit reads its own device number, frame number and slot number.

In this embodiment, the communication unit can obtain its own device number, frame number and slot number by reading the dial switch. In practical applications, the communication unit can also obtain its own equipment number and chassis number by reading the dial switch, and obtain its own slot number through the function of reading the slot number of the communication unit itself.

In this embodiment, it can be stipulated that the first to eighth digits of the DIP switch are the slot numbers of the communication unit, the ninth to 16th digits are the chassis numbers of the communication unit, and the 17th to 24th digits are the communication unit device number. However, in practical applications, the number of communication unit dial switches can be set according to user requirements, and the number is determined by the number of interconnected devices and the number of communication units in the device. In addition, the number of DIP switches used to identify the device number, chassis number, and slot number can also be determined by the user according to the actual situation.

In practical applications, the communication unit can also obtain the hardware information of the communication unit itself through data configuration, that is, store the hardware information of the communication unit in the form of a file, such as: a text file, and then the communication unit reads the file to obtain its own hardware information.

Step 202: The communication unit uses its own device number, frame number and slot number as calculation parameters, and obtains the first set of MAC address and IP address according to the calculation parameters and the pre-stored loading address calculation program.

In this embodiment, the loading address calculation program can set the MAC address of the communication unit to: 0x00-0xe0-0xfc-device number-frame number-slot number, and set the IP address of the communication unit to: 172.device number .Shelf number.Slot number. In practical applications, other methods may be used to generate the MAC address and the IP address by loading the address calculation program, as long as the addresses of the communication units do not conflict.

Step 203: The communication unit uses its first set of MAC address and IP address to establish a connection with the control unit whose MAC address and IP address have been set in advance through a network cable.

In this embodiment, the control unit has been assigned a MAC address and an IP address for communication in advance, and each communication unit has also stored the MAC address and IP address of the control unit. When the communication unit also obtains its own MAC address and IP address, it generally needs to establish a connection with the controller first, that is, a SOCKET connection, in order to use the TCP/IP protocol to communicate through the network cable.

Step 204: the communication unit sends a loading request message of the TCP/IP protocol to the control unit through the network cable.

In this embodiment, since the communication unit and the control unit are connected by a network cable, and both have MAC addresses and IP addresses, the interaction between the communication unit and the control unit should meet the requirements of the TCP/IP protocol.

Step 205: The control unit returns the load response message of the TCP/IP protocol carrying the basic application program, basic data, communication address calculation program and address calculation related data to the communication unit through the network cable.

In this embodiment, the control unit not only transmits the basic application program and basic data necessary for the communication unit to the communication unit through the network cable, but also transmits the communication address calculation program and address calculation related data to the communication unit. Afterwards, the communication unit can use the communication address calculation program and address calculation related data to locally calculate the second set of MAC address and IP address for communication.

In practical applications, the control unit can also directly calculate the second set of MAC address and IP address of the communication unit locally after receiving the loading request message sent by a certain communication unit, and then use the calculated second set of MAC address and IP address The IP address is carried in the loading response message and sent to the communication unit.

Step 206: The communication unit obtains a second set of MAC address and IP address according to the communication address calculation program and address calculation related data.

In this embodiment, the communication address calculation program can set the second set of MAC addresses of the communication unit to: 0x00-0xe0-0xfc-00-device number-module number, and the second set of IP addresses of the communication unit can be set to: 172. Device number. 200. Module number. The data related to address calculation is the corresponding relationship between the module number and the hardware information of the communication unit, and the corresponding relationship can be set by the user according to actual requirements. For example: when the chassis number of the communication unit is 1 and the slot number is 1, the corresponding module number can be specified as 32. In addition, the communication address calculation program can also be defined by the user according to the actual situation, as long as the addresses of all communication units do not conflict.

Step 207: The communication unit uses its second set of MAC address and IP address to establish a connection with the control unit.

After the communication unit establishes a connection with the control unit again, it can communicate with other communication units or control units that have been connected to the system according to the TCP/IP protocol, that is, the interconnection between communication units is realized.

In practical application, after determining the MAC address and IP address used for communication of the communication unit, it can also be modified as required. The modification method is: reset the communication unit hardware information, and the subsequent steps are the same as those proposed by the present invention. The method is the same and will not be repeated here. It is worth noting that resetting the hardware information of the communication unit should not conflict with other communication units.

Applying the solution of the present invention, the communication unit in each set of equipment can automatically generate a set of MAC address and IP address when powered on, and using this address, the communication unit in each set of equipment can directly use the network cable and follow the TCP/IP The protocol sends messages to load and then generates a second set of MAC and IP addresses for communication.

In addition, since the device number is also used as the hardware information of the communication unit, the communication units in different devices can be distinguished by the device number by using the dial switch or data configuration mode, so the network addresses of the communication units in different devices can be distinguished to realize Multiple sets of devices use network cables to communicate.

To sum up, the above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A method of interconnecting communication units, the method comprising the steps of:

a. the communication unit obtains a first set of MAC address and an Internet Protocol (IP) address for loading according to the hardware information of the communication unit;

b. the communication unit loads basic information and address information from the control unit through the network cable by using the obtained first set of MAC address and IP address, restarts according to the basic information, and obtains a second set of MAC address and IP address for communication according to the address information to realize the interconnection of the communication unit.

2. The method of claim 1, wherein the method for loading the basic information and the address information from the control unit through the network cable by the communication unit in step b is as follows:

the communication unit sends a loading request message to the control unit through the network cable, the control unit returns a loading response message carrying the basic information and the address information to the communication unit through the network cable, and the communication unit loads the basic information and the address information to the communication unit.

3. The method according to claim 1 or 2, wherein the basic information of step b is basic application and basic data of the communication unit;

the address information in the step b is related data of a communication address calculation program and address calculation.

4. The method according to claim 1 or 2, wherein the basic information of step b is basic application and basic data of the communication unit;

the address information in step b is the second set of MAC address and IP address of the communication unit predetermined by the control unit.

5. The method of claim 4, wherein the second set of MAC address and IP address of the communication unit previously determined by the control unit is determined by:

the control unit determines a second set of MAC address and IP address of the communication unit based on the communication address calculation program and the address calculation related data.

6. The method of claim 1, wherein the method for the communication unit to obtain the first set of MAC address and IP address according to its hardware information in step a is:

a1, reading the hardware information of the communication unit after the communication unit is powered on;

a2, the communication unit takes the hardware information as the calculation parameter, and obtains the first set of MAC address and IP address according to the calculation parameter and the loading address calculation program saved in advance.

7. The method of claim 6, wherein the self hardware information is a self device number, a machine frame number, and a slot number.

8. The method of claim 7, wherein the method of reading the device number, the frame number and the slot number of step a1 is as follows:

the communication unit reads dial switch information for identifying the equipment number, the machine frame number and the slot position number of the communication unit; or,

the communication unit reads the dial switch information identifying the equipment number and the machine frame number of the communication unit, and reads the slot number of the communication unit through the function of reading the slot number.

9. The method of claim 1, wherein when the communication unit is to modify the address, said step b is further followed by:

resetting hardware information of the communication unit, wherein the communication unit obtains a new first set of MAC address and IP address for loading according to the revised hardware information; the communication unit loads new basic information and address information from the control unit through the network cable by using the new first set of MAC address and IP address, restarts according to the new basic information, and obtains a new second set of MAC address and IP address for communication according to the new address information to realize the interconnection of the communication unit.

10. The method of claim 9, wherein the hardware information is a device number, a frame number, and a slot number.

Images