CN114268979A - A secure communication method for northbound interface of network management terminal - Google Patents
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Abstract
本发明涉及网管终端通信技术领域，具体涉及一种网管终端北向接口的安全通信方法，包括以下步骤；当接入设备上电时，接入设备主动向网管系统发起“设备上线请求”，随后网管系统向终端答复响应消息；接入设备定期向网管系统发送心跳消息；接入设备周期性主动上报消息，且缺省上报周期为预定时间，若网管向设备设置了此参数，以网管设置为准；本发明中，网管终端安全通信采用北向接口协议与接入设备进行交互，而综合管理系统与安全防护设备的通信报文采用UDP协议承载，实现了北向接口功能，并提供北向管理接口及北向信息上报功能，能够配合综合管理系统实现设备管理，从而达到对网管系统进行控制和操作的目的。
The invention relates to the technical field of network management terminal communication, in particular to a secure communication method for a northbound interface of a network management terminal, comprising the following steps: when an access device is powered on, the access device actively initiates a "device online request" to a network management system, and then The system replies with a response message to the terminal; the access device periodically sends a heartbeat message to the network management system; the access device actively reports messages periodically, and the default reporting period is a predetermined time. If the network management has set this parameter to the device, the network management setting shall prevail In the present invention, the network management terminal safety communication adopts the northbound interface protocol to interact with the access device, and the communication message between the integrated management system and the security protection device adopts the UDP protocol to carry, realizes the northbound interface function, and provides the northbound management interface and the northbound interface. The information reporting function can cooperate with the integrated management system to realize equipment management, so as to achieve the purpose of controlling and operating the network management system.
Description
Technical Field
The invention relates to the technical field of network management terminal communication, in particular to a secure communication method of a north interface of a network management terminal.
Background
The northbound interface is an interface defined for a manufacturer or an operator to access and manage a network, a user must use the northbound interface and develop a network management application in an application layer so that the user can access and manage the network through the application, the application is usually presented to an operator in a simple, easy-to-use and intuitive interface form, the operator sends commands through interface clicking or configuration, and the system internally sends the commands to a data processing layer by using the northbound interface. The data processing layer is resident with a north interface processing process which is operated at some time, and after receiving the command sent by the application layer, the process forwards the control command to the next layer: a data management layer to continue execution. If the received request message is the request message, the data from the data management layer is encapsulated according to the format specified by the northbound interface and then returned to the application layer. The user is mostly referred to as a network equipment manufacturer or a network operator.
However, when the security communication of the current network management terminal is interacted with the access device, the integrated management system cannot manage the access device well, so that the network management end is difficult to monitor and maintain remotely; in addition, data interaction between the network management terminal secure communication and the access device is slow, and needs to be sent through an external network device, which causes the problems of slow message content sending and low security.
Disclosure of Invention
Solves the technical problem
Aiming at the defects in the prior art, the invention provides a secure communication method of a north interface of a network management terminal, which solves the problem that when the secure communication of the network management terminal is interacted with access equipment, a comprehensive management system cannot well manage the access equipment, so that the network management end is difficult to monitor and maintain remotely; in addition, data interaction between the network management terminal secure communication and the access device is slow, and needs to be sent through an external network device, which causes the problems of slow message content sending and low security.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a safe communication method of north interface of network management terminal includes the following steps;
s1: when the access equipment is powered on, the access equipment actively initiates an equipment on-line request to a network management system, and then the network management system replies a response message to the terminal;
s2: the access equipment periodically sends heartbeat messages to the network management system;
s3: the access equipment periodically and actively reports the message, and the default reporting period is preset time, if the network manager sets the parameter to the equipment, the network manager sets the parameter as the standard;
s4: the network manager sends a command indicator to the equipment, and the response information sent by the equipment to the network manager carries the value of each specific parameter;
s5: the network manager sets up the message and sends the command indicator to the device, and then the device sends the command indicator to the network manager to indicate that the setup message is received and processed.
Furthermore, the access device in the communication protocol framework is consistent with the application layer, the communication protocol, the UDP and the physical layer in the network management system, and the access device is a safety protection device;
the application layer is composed of a plurality of specific application service elements and one or more public application service elements, and the application layer is the highest layer of the access device and the network management system and is used for directly providing services for the device application process;
the communication protocol is used for realizing the standard between the computer and the network connection and ensuring that data in the network is smoothly transmitted to a determined place;
the UDP is used for supporting network applications needing to transmit data between computers;
the physical layer is used for providing a data transmission path and transmitting data for the data end equipment, and the physical layer is the bottom layer of the access equipment and the network management system.
Furthermore, the communication messages of the management system and the safety protection equipment are carried by a UDP protocol; the default listening port of the management system is 5577, and the default listening port of the safety protection device is 5588.
Furthermore, when the access device initiates a power-on reporting request to the network management system, a request message needs to be sent, and the request message includes a sub-message.
Furthermore, when the network manager receives the access device online, a reply message is required to be sent, and the reply message does not contain any sub-message; when the communication module in the network management system does not receive the reply of the network management, the communication module automatically retransmits the registration message.
Furthermore, the access device actively sends heartbeat messages to the network management system at preset time intervals, and the heartbeat messages comprise sub-messages.
Furthermore, the access device periodically and actively reports information to a network management system, wherein the reported information comprises LTE information, terminal performance and alarm information; when the network management system sets the reported parameter list, then reporting all messages required by the network management system.
Furthermore, the LTE information is a single-layer structure formed by Node bs, and is used to simplify the network and reduce the delay, and the alarm information is sent by the monitoring unit; when the network management system is in fault, the monitoring unit sends out alarm according to the fault condition, sends out text prompt and sends out alarm information to the network management terminal.
Furthermore, the network management setting message comprises a service master station address port, an information reporting period and a heartbeat reporting period, and the network management setting message format follows a sub-packet mode; wherein, one message may contain a plurality of sub-packets.
Further, the sub-packet consists of three fields of CMD, data length and data field, and a complete message consists of multiple sub-packets.
Advantageous effects
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
1. in the invention, the security communication of the network management terminal is interacted with the access device by adopting a northbound interface protocol, and the communication message of the integrated management system and the security protection device is carried by adopting a UDP protocol, thereby realizing the northbound interface function, providing the northbound management interface and the northbound information reporting function, and being capable of realizing the device management by matching with the integrated management system, thereby achieving the purpose of controlling and operating the network management system and meeting the requirements of unified monitoring, integrated management and remote maintenance of the management system.
2. In the invention, the access device in the communication protocol frame is consistent with the application layer, the communication protocol, the UDP and the physical layer in the network management system, the information which needs to be interacted between the access device and the application layer, the communication protocol, the UDP and the physical layer is directly responded to the terminal through the network management system without external network equipment, thereby ensuring the timeliness and the safety of sending the message content, ensuring the normal and efficient operation of the network system and better utilizing the resources in the network system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic flow chart of a secure communication method of a north interface of a network management terminal according to the present invention;
FIG. 2 is a schematic diagram of a communication protocol framework of the present invention;
FIG. 3 is a message structure diagram of the present invention;
FIG. 4 is an on-line schematic view of the apparatus of the present invention;
FIG. 5 is a schematic diagram illustrating a heartbeat message sending process according to the present invention;
FIG. 6 is a flow chart illustrating a periodic message transmission process according to the present invention;
FIG. 7 is a table of sub-messages sent by the device of the present invention to the network manager;
fig. 8 is a table of sub-messages sent to the device by the network manager according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be further described with reference to the following examples.
Example 1
The secure communication method for the northbound interface of the network management terminal in the embodiment, as shown in fig. 1 to 8, includes the following steps;
s1: when the access equipment is powered on, the access equipment actively initiates an equipment on-line request to a network management system, and then the network management system replies a response message to the terminal;
s2: the access equipment periodically sends heartbeat messages to the network management system;
s3: the access equipment periodically and actively reports the message, and the default reporting period is preset time, if the network manager sets the parameter to the equipment, the network manager sets the parameter as the standard;
s4: the network management sends a command indicator to the equipment, and the response information sent by the equipment to the network management carries the value of each parameter, wherein 0x4 and the value thereof must be returned as they are;
s5: the network manager sets up the message and sends the command indicator to the device, and then the device sends the command indicator to the network manager to indicate that the setup message is received and processed.
In this embodiment, the request message sent to the network management system when the access device is powered on is a CMD ID 0x1 sub-message, and when the network management system receives the access device online, a reply message needs to be sent, and the reply message is an ID 0x1 sub-message.
In this embodiment, the default reporting period is 30 minutes, the access device reports periodic information to the network management system, and the reported information is a CMD ID 0x3 sub-message.
In this embodiment, when the network management system collects information, the network management system sends a sub-message with a CMD ID of 0x4 to the logging device.
In this embodiment, the network manager sets up a message and sends a sub-message with CMD ID 0x5 to the device, and the device sends CMD ID 0x5 to the network manager to indicate that the setup message is received and processed.
In this embodiment, the network management acquisition information and the setting information are used for the network management system to set specific parameters to the terminal, and the network management can carry the parameters in any response message returned to the device; and after receiving the parameters, the terminal actively reports a confirmation message to the network manager.
In this embodiment, the security communication of the network management terminal uses a northbound interface protocol to interact with the access device, and the communication message between the integrated management system and the security protection device uses a UDP protocol to carry, so as to implement a northbound interface function.
In this embodiment, a northbound management interface and a northbound information reporting function are provided, and the device management can be realized by matching with the integrated management system, so that the purpose of controlling and operating the network management system is achieved, and the requirements of unified monitoring, integrated management and remote maintenance of the management system are met.
In the embodiment, the access device in the communication protocol framework is consistent with the application layer, the communication protocol, the UDP and the physical layer in the network management system, and the information needing interaction between the access device and the application layer, the communication protocol, the UDP and the physical layer is directly responded to the terminal through the network management system without external network equipment, so that the timeliness and the safety of sending the message content are ensured.
Example 2
Fig. 2 to fig. 3 show a secure communication method for a northbound interface of a network management terminal in this embodiment, where an access device in a communication protocol framework is consistent with an application layer, a local communication protocol, a UDP, and a physical layer in a network management system, and the access device is a security protection device.
The application layer described in this embodiment is composed of a plurality of specific application service elements and one or more common application service elements, and the application layer is the highest layer of the access device and the network management system, and is used to directly provide services for the device application process.
The present communication protocol is used to implement the standard between the computer and the network connection, and ensure that the data in the network is smoothly transmitted to a certain place.
The UDP is used to support network applications that require data transmission between computers;
the physical layer described in this embodiment is used to provide a data transmission path and transmit data for the data end device, and the physical layer is the bottom layer of the access device and the network management system.
Communication messages of the management system and the safety protection equipment are all carried by a UDP protocol; the default listening port of the management system is 5577, and the default listening port of the safety protection device is 5588.
In the protocol of the embodiment, the digital part adopts a big-end mode, and the start, the sequence number and the timestamp are fixed lengths.
In this embodiment, the checksum verification starting position is all information from "packet length" to the end of the data field, the algorithm of checksum verification complies with RFC1071, and the packet length is calculated from the beginning of CMD to the end of the checksum verification.
In this embodiment, the value of the sequence number field is incremented in each request and response by the first message after the terminal is powered on, and the initial value of the sequence number is 1, which is sequentially incremented.
In this embodiment, the timestamp is a fixed 4 bytes, an unsigned integer, a big-end mode, and the value must be monotonically increased, and the current time of the system may be used as the base.
In the embodiment, the access device in the communication protocol framework is consistent with the application layer, the communication protocol, the UDP and the physical layer in the network management system, and the information needing to be interacted between the access device and the application layer, the communication protocol, the UDP and the physical layer is directly responded to the terminal through the network management system without external network equipment, so that the timeliness and the safety of sending the message content are ensured, the normal and efficient operation of the network system is ensured, and the resources in the network system are better utilized.
Example 3
In the secure communication method of the northbound interface of the network management terminal in this embodiment, as shown in fig. 4 to 8, when the access device initiates a power-on report request to the network management system, a request message needs to be sent, and the request message includes a sub-message.
In this embodiment, when the network manager receives the access device online, a reply message needs to be sent, and the reply message does not include any sub-message; when the communication module in the network management system does not receive the reply of the network management after 10 seconds of the default time, the communication module automatically and defaultly retransmits the registration message for 3 times.
In this embodiment, the access device actively sends a heartbeat message to the network management system every 10 minutes of the default time, and the heartbeat message includes a sub-message.
The access device of this embodiment periodically and actively reports information to a network management system, where the reported information includes LTE information, terminal performance, and alarm information; when the network management system sets the reported parameter list, then reporting all messages required by the network management system.
In this embodiment, the LTE information is a single-layer structure formed by Node bs, and is used to simplify a network and reduce delay, where the alarm information is sent by a monitoring unit; when the network management system is in fault, the monitoring unit sends out alarm according to the fault condition, sends out text prompt and sends out alarm information to the network management terminal.
The network management setting message of this embodiment includes an address port of a service master station, an information reporting period and a heartbeat reporting period, and the network management setting message format follows a sub-packet mode; wherein, one message may contain a plurality of sub-packets.
The sub-packet described in this embodiment is composed of three fields of CMD, data length and data field, and one complete message is composed of multiple sub-packets.
In this embodiment, the network management acquisition information and the setting information are used for the network management system to set specific parameters to the terminal, and the network management system can carry the parameters in any response message returned to the device; and after receiving the parameters, the terminal actively reports a confirmation message to the network manager.
In the invention, the security communication of the network management terminal is interacted with the access device by adopting a northbound interface protocol, and the communication message of the integrated management system and the security protection device is carried by adopting a UDP protocol, thereby realizing the northbound interface function, providing the northbound management interface and the northbound information reporting function, and being capable of realizing the device management by matching with the integrated management system, thereby achieving the purpose of controlling and operating the network management system and meeting the requirements of unified monitoring, integrated management and remote maintenance of the management system.
In the invention, the access device in the communication protocol frame is consistent with the application layer, the communication protocol, the UDP and the physical layer in the network management system, the information which needs to be interacted between the access device and the application layer, the communication protocol, the UDP and the physical layer is directly responded to the terminal through the network management system without external network equipment, thereby ensuring the timeliness and the safety of sending the message content, ensuring the normal and efficient operation of the network system and better utilizing the resources in the network system.
In conclusion, the network management terminal adopts a northbound interface protocol to interact with the access device in the security communication, and the communication messages of the integrated management system and the security protection device are carried by a UDP protocol, so that the northbound interface function is realized, the northbound management interface and the northbound information reporting function are provided, and the integrated management system can be matched to realize the device management, so that the purposes of controlling and operating the network management system are achieved, and the requirements of unified monitoring, integrated management and remote maintenance of the management system are met; the access device in the communication protocol frame is consistent with the application layer, the communication protocol, the UDP and the physical layer in the network management system, the information needing to be interacted between the access device and the application layer, the communication protocol, the UDP and the physical layer is directly responded to the terminal through the network management system without external network equipment, so that the timeliness and the safety of sending the message content are ensured, the normal and efficient operation of the network system is ensured, and the resources in the network system are better utilized.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. A safe communication method of north interface of network management terminal is characterized in that it includes following steps;
s1: when the access equipment is powered on, the access equipment actively initiates an equipment on-line request to a network management system, and then the network management system replies a response message to the terminal;
s2: the access equipment periodically sends heartbeat messages to the network management system;
s3: the access equipment periodically and actively reports the message, and the default reporting period is preset time, if the network manager sets the parameter to the equipment, the network manager sets the parameter as the standard;
s4: the network manager sends a command indicator to the equipment, and the response information sent by the equipment to the network manager carries the value of each specific parameter;
s5: the network manager sets up the message and sends the command indicator to the device, and then the device sends the command indicator to the network manager to indicate that the setup message is received and processed.
2. The secure communication method of the north interface of the network management terminal according to claim 1, wherein the access device in the communication protocol framework is consistent with the application layer, the local communication protocol, the UDP and the physical layer in the network management system, and the access device is a security protection device;
the application layer is composed of a plurality of specific application service elements and one or more public application service elements, and the application layer is the highest layer of the access device and the network management system and is used for directly providing services for the device application process;
the communication protocol is used for realizing the standard between the computer and the network connection and ensuring that data in the network is smoothly transmitted to a determined place;
the UDP is used for supporting network applications needing to transmit data between computers;
the physical layer is used for providing a data transmission path and transmitting data for the data end equipment, and the physical layer is the bottom layer of the access equipment and the network management system.
3. The secure communication method of the north interface of the network management terminal according to claim 2, wherein the communication messages of the management system and the security protection device are both carried by UDP protocol; the default listening port of the management system is 5577, and the default listening port of the safety protection device is 5588.
4. The secure communication method of the north interface of the network management terminal according to claim 1, wherein the access device needs to send a request message when initiating a power-on report request to the network management system, and the request message includes a sub-message.
5. The secure communication method of the north interface of the network management terminal according to claim 4, wherein when the network management receives the access device online, a reply message is required to be sent, and the reply message does not include any sub-message; when the communication module in the network management system does not receive the reply of the network management, the communication module automatically retransmits the registration message.
6. The secure communication method of the north interface of the network management terminal according to claim 1, wherein the access device actively sends a heartbeat message to the network management system every predetermined time, and the heartbeat message includes a sub-message.
7. The secure communication method of the north interface of the network management terminal according to claim 1, wherein the access device periodically and actively reports information to the network management system, and the reported information includes LTE information, terminal performance and alarm information; when the network management system sets the reported parameter list, then reporting all messages required by the network management system.
8. The secure communication method of the north interface of the network management terminal according to claim 7, wherein the LTE information is a single layer structure composed of Node bs for simplifying a network and reducing delay, and the alarm information is sent by a monitoring unit; when the network management system is in fault, the monitoring unit sends out alarm according to the fault condition, sends out text prompt and sends out alarm information to the network management terminal.
9. The secure communication method of the north-bound interface of the network management terminal according to claim 1, wherein the network management setting message includes a service master station address port, an information reporting period and a heartbeat reporting period, and the network management setting message format follows a sub-packet mode; wherein, one message may contain a plurality of sub-packets.
10. The method as claimed in claim 9, wherein the sub-packet comprises three fields of CMD, data length and data field, and a complete message comprises a plurality of sub-packets.
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