CN100366018C - Method for realizing communication unit interconnection - Google Patents
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Abstract
The present invention provides a method for realizing communication unit interconnection, which has the key point that the communication unit makes use of the first set of media access control layer (MAC) address and an internet protocol (IP) address to carry out interaction with a control unit through a network cable, and the second set of MAC address and IP address for communication are obtained. Firstly, the communication unit obtains the first set of MAC address and the IP address according to self hardware information, the obtained first set of MAC address and the IP address are used for interacting with the control unit which is provided with the MAC address and the IP address in advance, essential information and address information are obtained from the control unit through the network cable; then, the communication is started according to the essential information, and the second set of MAC address and IP address for the communication are obtained according to the address information to realize the interconnection of the communication unit. By using the scheme of the present invention, the communication carries out rapid loading application program and data through the network cable, thereby, the interconnection of the communication unit can be completed quickly, moreover, the communication unit initiates the process of obtaining network address actively, and the load of the control unit can be reduced greatly.
Description
Technical Field
The invention relates to the technical field of data communication, in particular to a method for realizing interconnection of communication units.
Background
A network system is generally formed by interconnecting a plurality of network devices, each of which is a collection of carrier-class devices capable of providing specific services and functions. Generally, a set of network devices 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 supplies, fans and other devices, and a set of network devices can also be regarded as a system. Among them, a device such as a computer and a single board having a communication function is generally called a communication unit.
In order to enable communication between sets of network devices and between communication units within each set of network devices, the communication units need to be interconnected. Generally, there are two requirements for achieving interconnection between communication units: one is that each communication unit corresponds to a set of unique Media Access Control (MAC) layer address and Internet Protocol (IP) address; secondly, each communication unit needs to load a basic application program and basic data for maintaining normal operation of the communication unit and ensuring normal communication function, and then the basic application program is operated, wherein the process of operating the basic application program is also called as a starting process. Of course, different communication units may have different functions, and the contents of their basic applications and basic data may differ.
For the first requirement to achieve interconnection of communication units, it is generally necessary to configure the communication units with MAC addresses and IP addresses. Currently, the method for configuring the MAC address of the communication unit generally includes three modes, i.e., fixed configuration, manual configuration, and automatic configuration, and the method for configuring the IP address of the communication unit generally includes manual configuration and automatic configuration. The fixed configuration mode of the MAC address refers to that the MAC address of the communication unit is configured in the production process of the network device, and the fixed configuration mode has the disadvantages that a user cannot change the MAC address and the use is not flexible. The manual configuration mode of the MAC address and the IP address means that a user manually allocates the MAC address and the IP address to all communication units in the network device as required. Because the number of communication units in a set of network devices is large, the manual configuration process is not only tedious, but also prone to errors. The automatic configuration method of the MAC address and the IP address means that the network equipment automatically generates the MAC address and the IP address of the communication unit when the network equipment accesses the network. The automatic configuration mode can be flexibly configured according to the requirements of users, greatly saves labor, is not easy to make mistakes, and can be more and more widely applied.
As a second requirement for realizing interconnection of communication units, a physical connection is generally used to load a basic application program and basic data to the communication units via a serial port line or a cable.
In the prior art, when the MAC address and the IP address of the communication unit are automatically configured, the method for interconnecting the communication units is as follows: one communication unit is firstly appointed as a control unit, an algorithm for configuring the MAC address and the IP address is stored in the control unit, and the algorithm is responsible for allocating the MAC address and the IP address of other communication units. When a communication unit is to be accessed into a communication system, the communication unit loads a basic application program and basic data of the communication unit through a serial port line, a cable and the like, then the communication unit starts the starting process and starts a function of receiving a data packet sent to the communication unit by a control unit; the control unit sends a data packet carrying an MAC address and an IP address to a port corresponding to a communication unit which is not accessed into the system regularly and actively, or scans the port regularly, and sends the data packet carrying the MAC address and the IP address to the communication unit after determining that a communication unit which is newly accessed is provided; after a communication unit which is to be accessed into the communication system receives the data packet, the configuration work of the MAC address and the IP address of the communication unit is completed according to the information in the data packet. The control unit may be a central control unit responsible for configuring network addresses of all communication units, or an upper control unit that configures network addresses only for its own lower layer communication unit.
The defects of the prior art are as follows: (1) because the communication unit does not have an MAC address and an IP address before configuration, the communication unit can only load basic application programs and basic data of the communication unit through a serial port line or a cable and the like, and the transmission speed of the serial port line or the cable and the like is very slow, so that the interconnection process of the communication unit is very slow. (2) The control unit needs to periodically send data packets carrying the MAC address and the IP address to all communication units that have not yet accessed the system, or needs to periodically scan ports connected to the communication units that have not yet accessed the system, and when it is found that a new communication unit is accessed, sends data packets of the MAC address and the IP address to the newly accessed communication unit. In actual work, how many communication units are needed in the system is determined according to specific situations, and when new communication units are not needed to be added, the control unit still needs to execute the work of sending data packets or scanning, so that the workload of the control unit is increased, and network resources are wasted. (3) After determining the MAC address and IP address of the communication unit, the communication unit is generally difficult to modify, and in practical application, the MAC address and IP address of the communication unit sometimes need to be flexibly modified, which cannot be met by the prior art.
It follows that there is no fast interconnection method in the prior art that can be actively obtained by the communication unit and that can flexibly modify its own network address.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a method for interconnecting communication units, which can be actively obtained by the communication units, flexibly modify their own network addresses, and enable the communication units to be quickly interconnected. In order to achieve the purpose, the technical scheme provided by the invention is as follows:
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.
Preferably, the method for loading the basic information and the address information from the control unit through the network cable by the communication unit in the step b comprises the following steps:
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.
Preferably, the basic information in step b is the basic application program 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.
Preferably, the basic information 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 predetermined by the control unit.
Preferably, the method for determining the second set of MAC address and IP address of the communication unit, which is determined in advance by the control unit, is as follows:
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.
Preferably, the method for the communication unit to obtain the first set of MAC address and IP address according to its own 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.
Preferably, the hardware information of the device is a device number, a machine frame number and a slot number of the device.
Preferably, the method for reading the device number, the frame number, and the slot number in step a1 includes:
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.
Preferably, when the communication unit is to modify an address, the step b further comprises:
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.
In summary, the method for implementing interconnection of communication units provided by the present invention has the following advantages:
(1) because the communication unit can automatically generate the first set of MAC address and IP address according to the hardware information of the communication unit after being electrified, and the communication unit is connected with the control unit by the network cable, the communication unit can quickly load by utilizing a TCP/IP protocol after generating the first set of MAC address and IP address, thereby accelerating the speed of realizing interconnection of the communication unit.
(2) The communication unit utilizes the dial switch to mark the hardware information of the communication unit, can flexibly place or change the position of the communication unit without being limited by actual physical space, namely, the communication unit does not need to be fixed on a certain slot position of a certain machine frame all the time. When the communication unit changes its physical position, the broadcast switch is modified to obtain new hardware information identifying itself, so as to obtain new MAC address and IP address.
(3) Because the communication unit actively sends the loading request message to the control unit and then carries out address configuration work, the control unit does not need to send a data packet to the communication unit at regular time or scan a port at regular time, the workload of the control unit can be reduced, and network resources are saved.
Drawings
FIG. 1 is a flow chart of an implementation of the inventive arrangements;
fig. 2 is a flow chart of an embodiment of applying the scheme of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The basic idea of the invention is: the communication unit obtains a first set of Media Access Control (MAC) addresses and Internet Protocol (IP) addresses for loading according to hardware information of the communication unit; and then, by utilizing a transmission mode of a TCP/IP protocol, acquiring basic information and address information from the control unit through a network cable, then carrying out a starting process according to the basic information, and acquiring a second set of MAC address and IP address for communication according to the address information to complete the interconnection of the communication units.
Fig. 1 is a flow chart of an implementation of the scheme of the invention. As shown in fig. 1, the method for configuring a network address for a communication unit according to the present invention includes the following steps:
step 101: the communication unit obtains a first set of MAC address and IP address according to the hardware information of the communication unit;
here, the first set of MAC address and IP address is a network address of the communication unit, and is used for loading the basic information and the address information.
Step 102: the communication unit obtains 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 a basic application program and basic data, and the address information may be information including a communication address calculation program and address calculation-related data, or may be already calculated network address information for communication of the communication unit. Among them, basic application programs and basic data are programs and data necessary for maintaining normal operation and normal communication of the communication unit.
Step 103: the communication unit restarts according to the acquired basic information;
step 104: the communication unit obtains a second set of MAC address and IP address for communication based on 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 allocated to the communication unit: the first set of network addresses is used for loading, while the second set of network addresses is actually used for communication. After the first set of network addresses is obtained, the network cable can be used for quickly loading, and a second set of network addresses is obtained; then, the communication unit discards the first set of network addresses and directly communicates with the second set of network addresses. The first set of network addresses and the second set of network addresses are not conflicted, the first set of network addresses of all the communication units used for loading are not conflicted, and the second set of network addresses of all the communication units used for communication are not conflicted.
In the invention, two methods for the communication unit to acquire the hardware information of the communication unit are provided: one is a method of reading a dial switch set in advance, and the other is a method of data configuration. The mode of reading the preset dial switch is as follows: setting the dial switches to a preset position, wherein the 'on' of each dial switch can represent '1' and the 'off' can represent '0', and a plurality of dial switches can mark hardware information such as the equipment number, the machine frame number, the slot position number and the like of the communication unit; the communication unit directly reads the information on the signal wire connected with the dial switch, and then the hardware information of the communication unit can be obtained. The data configuration mode is as follows: the system stores the hardware information of the communication unit in the control unit in a certain file mode, then transmits the hardware information to the communication unit through a serial port line or a cable and the like, and the communication unit obtains the hardware information of the communication unit from the file.
In the invention, each communication unit stores a loading address calculation program, and after the communication unit is powered on, a first set of MAC address and IP address can be obtained according to the hardware information of the communication unit and the loading address calculation program.
Fig. 2 is a flow chart of an embodiment of applying the scheme of the present invention. In this embodiment, there are 8 sets of devices to be interconnected, each set of devices has 100 communication units, and each communication unit has 24 dip switches, where 8 dip switches identify the device number to which the communication unit itself belongs, 8 dip switches identify the machine frame number to which the communication unit itself belongs, and the other 8 dip switches identify the slot number to which the communication unit itself belongs. In this embodiment, all the communication units are directly connected to the control unit through network cables, and each set of devices is also connected through network cables.
As shown in fig. 2, the steps of the method for implementing the network address configuration of the communication unit in this embodiment are as follows:
step 201: the communication unit reads its own device number, frame number, and slot number.
In this embodiment, the communication unit may obtain the device number, the machine frame number, and the slot number of the communication unit by reading the dial switch. In practical application, the communication unit can also obtain the own equipment number and the machine frame number by reading the dial switch, and obtain the own slot number by the function of reading the slot number of the communication unit.
In this embodiment, bits 1 to 8 of the dial switch may be specified as slot numbers of the communication unit, bits 9 to 16 may be specified as frame numbers of the communication unit, and bits 17 to 24 may be specified as device numbers of the communication unit. In practical application, the number of the dial switches of the communication units can be set according to the requirements of users, and the number of the dial switches is determined by the number of the interconnected devices and the number of the communication units in the devices. In addition, the number of equipment, machine frame number and slot number to be marked in the dial switch can be determined by the user according to the actual situation.
In practical application, the communication unit may also obtain the hardware information of the communication unit itself by way of data configuration, that is, the hardware information of the communication unit is stored in the form of a file, such as: and the communication unit reads the file to obtain the hardware information of the communication unit.
Step 202: the communication unit takes the own equipment number, machine frame number and slot number as calculation parameters, and obtains a first set of MAC address and IP address according to the calculation parameters and a loading address calculation program stored in advance.
In this embodiment, the load address calculation program may set the MAC address of the communication unit to: 0x00-0xe0-0 xfc-device number-frame number-slot number, sets the IP address of the communication unit to: 172. equipment number, frame number, slot number. In practical applications, the loading address calculation program may also adopt other methods to generate the MAC address and the IP address as long as the addresses of the communication units do not conflict.
Step 203: the communication unit establishes connection with a control unit which is provided with a MAC address and an IP address in advance through a network cable by utilizing the first set of MAC address and IP address of the communication unit.
In the present embodiment, the control unit has previously assigned a MAC address and an IP address for communication, and the MAC address and the IP address of the control unit have also been held in each communication unit. When the communication unit also obtains its own MAC address and IP address, it generally needs to establish a connection with the control first, that is: SOCKET connection, the communication can be carried out through the network cable by utilizing the TCP/IP protocol.
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, the communication unit and the control unit are connected by a network cable and both have a MAC address and an IP address, so 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 a loading response message of the TCP/IP protocol carrying the basic application program, the basic data, the communication address calculation program and the 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 the basic data necessary for the communication unit to the communication unit through the network cable, but also transmits the communication address calculation program and the address calculation related data to the communication unit. Thereafter, the communication unit can locally calculate a second set of MAC address and IP address for communication using the communication address calculation program and the address calculation related data.
In practical applications, the control unit may also directly locally calculate the second set of MAC address and IP address of a certain communication unit after receiving a loading request message sent by the communication unit, and then send the second set of MAC address and IP address to the communication unit with a loading response message.
Step 206: the communication unit obtains a second set of MAC address and IP address based on the communication address calculation program and the address calculation related data.
In this embodiment, the communication address calculation program may set the second set of MAC addresses of the communication unit to: 0x00-0xe0-0 xfc-00-device number-module number, the second set of IP addresses of the communication unit may be set to: 172. device number 200 module number. The address calculation related data is the corresponding relation between the module number and the communication unit hardware information, and the corresponding relation can be set by a user according to an actual request. For example: when the frame number of the communication unit is 1 and the slot number is 1, the corresponding module number may be specified to be 32. In addition, the communication address calculation program may be defined by the user according to the actual situation, as long as the addresses of all the communication units do not conflict.
Step 207: the communication unit establishes a connection with the control unit using its second set of MAC address and IP address.
After the communication unit establishes connection with the control unit again, the communication unit can communicate with other communication units or control units which have access to the system according to the TCP/IP protocol, namely, the interconnection between the communication units is realized.
In practical application, after determining the MAC address and the IP address of the communication unit for communication, the MAC address and the IP address may be modified as needed, where the modification method includes: the hardware information of the communication unit is reset, and the subsequent steps are consistent with the method provided by the invention, and are not described again here. It is worth noting that: the hardware information of the reset communication unit should not conflict with other communication units.
By applying the scheme of the invention, the communication unit in each set of equipment can automatically generate a set of MAC address and IP address when being electrified, and by utilizing the addresses, the communication unit in each set of equipment can directly utilize the network cable and send messages according to a TCP/IP protocol for loading, and then generates a second set of MAC address and IP address for communication.
In addition, because 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 numbers by using a dial switch or a data configuration mode, so that the network addresses of the communication units in different devices can be distinguished, and a plurality of sets of devices can communicate by using the network cable.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in 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.
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| CNB2006100030394A CN100366018C (en) | 2006-01-26 | 2006-01-26 | Method for realizing communication unit interconnection |
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| CNB2006100030394A CN100366018C (en) | 2006-01-26 | 2006-01-26 | Method for realizing communication unit interconnection |
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| CN100366018C true CN100366018C (en) | 2008-01-30 |
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| CNB2006100030394A Expired - Fee Related CN100366018C (en) | 2006-01-26 | 2006-01-26 | Method for realizing communication unit interconnection |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102185934B (en) * | 2011-04-27 | 2015-01-07 | 深圳Tcl新技术有限公司 | System and method for writing MAC (media access control) address |
| CN102521172B (en) * | 2011-11-22 | 2015-07-08 | 华为技术有限公司 | Allocating method of hardware address, back panel and system |
| CN103795821A (en) * | 2014-02-11 | 2014-05-14 | 江苏沁恒股份有限公司 | Method and device for applying for independent MAC address through Internet for networking product |
| CN113132501A (en) * | 2019-12-31 | 2021-07-16 | 上海欣诺通信技术股份有限公司 | System, method, device and medium for managing multiple optical transport network devices by single IP address |
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| US4899274A (en) * | 1985-11-21 | 1990-02-06 | International Business Machines Corporation | Dynamic terminal address allocation by the terminal itself in a data processing system |
| WO2003047215A2 (en) * | 2001-11-26 | 2003-06-05 | Schneider Automation Inc. | Method and apparatus for assigning a network node address |
| CN1567831A (en) * | 2003-07-07 | 2005-01-19 | 深圳市中兴通讯股份有限公司 | Method of automatic network address configuration for communication unit within equipment |
| CN1662014A (en) * | 2004-02-25 | 2005-08-31 | Lg电子有限公司 | Method of assigning addresses to a plurality of devices on a network and a network system therefor |
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2006
- 2006-01-26 CN CNB2006100030394A patent/CN100366018C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899274A (en) * | 1985-11-21 | 1990-02-06 | International Business Machines Corporation | Dynamic terminal address allocation by the terminal itself in a data processing system |
| WO2003047215A2 (en) * | 2001-11-26 | 2003-06-05 | Schneider Automation Inc. | Method and apparatus for assigning a network node address |
| CN1567831A (en) * | 2003-07-07 | 2005-01-19 | 深圳市中兴通讯股份有限公司 | Method of automatic network address configuration for communication unit within equipment |
| CN1662014A (en) * | 2004-02-25 | 2005-08-31 | Lg电子有限公司 | Method of assigning addresses to a plurality of devices on a network and a network system therefor |
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