CN111511041B - Remote connection method and device - Google Patents
Remote connection method and device Download PDFInfo
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- CN111511041B CN111511041B CN201910098878.6A CN201910098878A CN111511041B CN 111511041 B CN111511041 B CN 111511041B CN 201910098878 A CN201910098878 A CN 201910098878A CN 111511041 B CN111511041 B CN 111511041B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/659—Internet protocol version 6 [IPv6] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/686—Types of network addresses using dual-stack hosts, e.g. in Internet protocol version 4 [IPv4]/Internet protocol version 6 [IPv6] networks
Abstract
The invention discloses a remote connection method and a device, which are used for receiving a connection request message of a management station, wherein the connection request message carries an IP address type of the management station, determining a socket corresponding to the IP address type of the management station in a socket set according to the IP address type, and remotely connecting the management station by using the socket, so that the management stations with different IP address types are remotely connected with a base station, and the remote connection flexibility is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a remote connection method and apparatus.
Background
With the development of wireless communication technology, research on the fifth Generation mobile communication technology (5th-Generation, 5G) is becoming more and more extensive, and in order to realize communication between a management station and a base station, it is generally necessary to remotely connect the management station to the base station.
At present, when a Local Maintenance Terminal (LMT) is remotely connected to a 5G base station through a service port as a management station, the LMT can only log in and access the 5G base station through an Internet Protocol Version 4 (IPv 4) address, in order to ensure the requirements of high rate and wide coverage of the 5G, the number of the 5G base stations is increased greatly compared with that of the 4G base stations, and the requirement of an Internet Protocol (IP) address is also increased when the number of the base stations is increased.
According to the method for accessing the 5G base station only through the IPv4 address, the requirement on the number of IP addresses while the number of base stations is increased cannot be met, and the blocking effect can be generated on large-scale coverage of the 5G base station.
Disclosure of Invention
The invention aims to provide a remote connection method and a remote connection device, which are used for solving the problem that only IPv4 address login is supported to access a 5G base station in the prior art.
The purpose of the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a remote connection method, including:
receiving a connection request message of a management station, wherein the connection request message carries an IP address type of the management station;
determining a socket corresponding to the IP address type of the management station in a socket set according to the IP address type, wherein the socket set comprises an IPv4 socket and an IPv6 socket;
and remotely connecting the management station by using the socket.
Optionally, determining, according to the IP address type, a socket corresponding to the IP address type of the management station in a socket set, including:
determining a socket with a read-write event in a socket set;
and according to the IP address type, taking the socket with the read-write event as a socket corresponding to the IP address type of the management station.
Optionally, after the remote connection to the management station by using the socket, the method further includes:
and receiving a command request message sent by the management station, and responding to the command request message.
Optionally, before responding to the command request message, the method further includes:
determining the IP address type of a command request message sent by the management station;
and determining a socket corresponding to the IP address type according to the IP address type.
In a second aspect, the present invention provides a remote connection device comprising:
a receiving unit, configured to receive a connection request message of a management station, where the connection request message carries an IP address type of the management station;
a determining unit, configured to determine, according to the IP address type, a socket corresponding to the IP address type of the management station in a socket set, where the socket set includes an IPv4 socket and an IPv6 socket;
a connection unit for remotely connecting the management station using the socket.
Optionally, the determining unit is specifically configured to determine, in the socket set, a socket corresponding to the IP address type of the management station according to the IP address type as follows:
determining a socket with a read-write event in a socket set;
and according to the IP address type, taking the socket with the read-write event as a socket corresponding to the IP address type of the management station.
Optionally, the receiving unit is further configured to: receiving a command request message sent by the management station;
the device further comprises: and the processing unit is used for responding to the command request message.
Optionally, the determining unit is further configured to: and determining the IP address type of the command request message sent by the management station, and determining a socket corresponding to the IP address type according to the IP address type.
In a third aspect, the present invention further provides a remote connection device, including:
a memory for storing program instructions;
a processor for calling the program instructions stored in the memory and executing the method of the first aspect according to the obtained program.
In a fourth aspect, the present invention provides a computer readable storage medium having stored thereon computer instructions which, when run on a computer, cause the computer to perform the method of the first aspect.
The invention provides a remote connection method and a device, which are used for receiving a connection request message of a management station, wherein the connection request message carries an IP address type of the management station, determining a socket corresponding to the IP address type of the management station in a socket set according to the IP address type, and remotely connecting the management station by using the socket, so that the management stations with different IP address types are remotely connected with a base station, and the flexibility of remote connection is improved.
Drawings
Fig. 1 is a flowchart of a remote connection method according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a method for determining a socket corresponding to an IP address type of a management station in a socket set according to the IP address type according to an embodiment of the present application;
fig. 3 is a flowchart of another remote connection method provided in an embodiment of the present application;
fig. 4 is a flowchart illustrating a communication between a management station and a base station according to an embodiment of the present application;
fig. 5 is a block diagram illustrating a remote connection device according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of another remote connection apparatus according to an embodiment of the present application.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
According to the development situation of the wireless communication technology at the present stage, a large amount of 5G base station equipment is put into use, and because the 5G network building frequency band is higher and the coverage range of the base station is relatively smaller, the number of the base stations is far more than that of the 4G era if the requirements of 5G high speed and wide coverage are to be ensured. Due to the increase of the number of base stations, a great demand for IP addresses must be caused in remote management.
At present, a management station remotely accesses 5G base station equipment to only support an IPv4 address, and for an IPv4 address, the number of base stations that can be supported and allocated in a certain network segment is very limited, which will severely restrict application and development of the 5G base station equipment.
In view of this, embodiments of the present application provide a remote connection method and apparatus, where an IPv6 socket is added in parallel on the basis of an IPv4 socket, and two IP addresses are established, so that when a management station initiates an access request, a base station side can select a corresponding socket according to an IP address type of an access management station, and further establish a remote connection.
For convenience of description, in the embodiment of the present application, a Local Maintenance Terminal (LMT) is taken as an example of a management station, and details of a method related in the present application are described. The following will describe the flow of the method for connecting the LMT and the base station by taking the LMT as an example.
As shown in fig. 1 is a flowchart of a remote connection method provided in an embodiment of the present application, an execution subject of the method shown in fig. 1 may include, but is not limited to, a network-side device, such as a base station, and specifically referring to fig. 1, the method includes:
s101: the base station receives a connection request message of the management station.
In the embodiment of the application, the base station may receive a connection request message initiated by the LMT, and the connection request message may carry an IP address type of the management station LMT.
S102: and the base station determines a socket corresponding to the IP address of the management station in the socket set according to the IP address type.
In the embodiment of the application, the base station can search the socket corresponding to the IP address type of the LMT in the created socket set according to the IP address type of the LMT.
Specifically, the socket set may include an IPv4 socket and an IPv6 socket, and the IPv4 socket and the IPv6 socket correspond to an IPv4 address and an IPv6 address, respectively.
That is, when the IP address type of the LMT is the IPv4 address, the base station can select an IPv4 socket from the socket set; when the IP address type of the LMT is the IPv6 address, the base station can select an IPv6 socket in the socket set.
S103: the base station remotely connects to the management station using a socket.
In the embodiment of the present application, when the LMT initiates an access request, the base station may determine a corresponding socket according to the IP address type of the LMT, thereby establishing a connection of a Transmission Control Protocol (TCP) between the LMT and the base station.
By the method, the LMT can log in and access the base station by the addresses of different IP address types, namely the method supports the dual-protocol stack remote connection to access the base station, thereby improving the flexibility of remote connection.
Optionally, before step S101, an IPv4 socket and an IPv6 socket may be created first, and due to the address structure of IPv6, in this embodiment of the present application, a socket of IPv6 may be set using socket options (socket options), so as to solve the binding problem of the IPv6 address port.
If only IPv6 socket compatibility is created, once socket creation fails, the base station cannot be connected in any one of IPv4 or IPv 6; if two sets of sockets are created in parallel, once one socket is failed to be created, connection can be performed in another mode, so that two sockets are created in the embodiment of the application.
Since the base station does not know the access address type of the LMT before the LMT is connected to the base station, the IPv4 socket and the IPv6 socket may be put into one socket set in the embodiment of the present application.
The following description of the embodiments of the present application will describe a process related to the above embodiments for determining a socket corresponding to an IP address type of a management station in a socket set according to the IP address type.
Fig. 2 is a flowchart of a method for determining a socket corresponding to an IP address type of a management station in a socket set according to the IP address type according to an embodiment of the present invention. As shown in fig. 2, includes:
the step of executing S201 in fig. 2 is the same as the step of executing S101 in fig. 1, and is not described again here.
S202: and detecting whether a socket with a read-write event exists in the socket set.
Specifically, the base station may invoke a select function to detect whether there is a socket in the socket set that is in a ready state.
It should be noted that the socket in the ready state is the socket where the read/write event occurs.
S203: and if the socket with the read-write event exists, taking the socket with the read-write event as the socket corresponding to the IP address type of the management station.
In the embodiment of the application, the socket with the read-write event in the socket set can be determined, and the socket with the read-write event is used as the socket corresponding to the IP address type of the management station. That is, when the IP address type of the LMT is IPv4 and the socket in which the read-write event occurs in the socket set is IPv4, the IPv4 socket in the socket set is used as the socket corresponding to the IP address type of the management station.
Based on the embodiments of the methods shown in fig. 1 and fig. 2, the present application provides another flow chart of the remote connection method, as shown in fig. 3.
In fig. 3, after the IPv4 and IPv6 sockets are successfully created, a 5000 port is cyclically monitored all the time, when an LMT with an IPv4 address initiates an access request, an IPv4 socket in a ready state can be selected in a socket set through a selection function, an IPv6 socket is removed, a TCP connection with IPv4 is established, and access to a 5G base station by the LMT is completed, and similarly, when an LMT with an IPv6 address requests access, only an IPv6 socket in a ready state is left through a selection, and thus a TCP connection with IPv6 is established. If no LMT initiates the access request, no ready socket exists after select, and the process of waiting is carried out all the time.
It can be understood that the 5000 port in the method flowchart shown in fig. 3 is a port number agreed for information interaction between the LMT and the base station, and the port number may be between 1024 and 65535, which is not limited to the 5000 port number in the embodiment of the present application.
Further, after the LMT establishes a remote connection with the base station, the base station may receive a command request message transmitted by a management station (LMT) and respond to the command request message.
Specifically, the management station may send command request messages such as add, delete, search, modify, etc. to the base station, and the base station may respond to the request message of the LMT. For example, the LMT issues a search request message, and the base station may search for the search content carried in the request message and feed back the search result to the LMT.
Optionally, before the base station responds to the command request message, the method further includes:
determining the IP address type of a command request message sent by a management station; and determining a socket corresponding to the IP address type according to the IP address type.
When the base station receives the request message sent by the LMT, the IP address type of the request message sent by the LMT is unknown, so the IP address type of the command request message sent by the management station needs to be determined, and the socket corresponding to the IP address type is determined according to the IP address type.
For example, if the request message issued by the LMT is a request message of an IPv4 address type, the selected socket is an IPv4 socket.
Specifically, in the embodiment of the present application, in order to adaptively respond to a command request issued by an IPv4 or IPv6 management station, a base station side may create User Datagram Protocol (UDP) sockets of IPv4 and IPv6, and place the two sockets in a socket set. When the management station issues the command request message, a select function is called to screen the sockets for connecting the management stations with different IP address types, the sockets with read-write events are found out, and a receiving (recvfrom) function is used for receiving the command issued by the management station, so that the response of the base station to the management station is completed.
It will be appreciated that the recvfrom function is a function of the received packets in the network programming.
Fig. 4 is a flowchart of a method for a Management station and a base station to communicate via Simple Network Management Protocol (SNMP), according to an embodiment of the present application.
In fig. 4, after the IPv4 and IPv6 sockets are successfully created, when a management station with an IPv4 address issues a command, a select function selects a ready socket with an IPv4 in the socket set, removes the IPv6 socket, establishes a UDP connection with an IPv4, and implements a command request from the management station to the proxy base station, and the same process is performed when a management station with an IPv6 address issues a command. If no management station issues the command, no ready socket exists after select, and the process of waiting is always circulated. The scheme can realize that the 5G proxy base station supports the control of the dual-protocol stack management station, completes the addition, deletion, inquiry and modification of the proxy base station data by the management station, and actively reports the alarm (trap)/information (in) to the management station by the base station.
It should be noted that the 161 port in fig. 4 is a port dedicated to the SNMP protocol.
Based on the same concept as the remote connection method embodiment, the embodiment of the invention also provides a remote connection device. Fig. 5 is a block diagram illustrating a remote connection apparatus according to an embodiment of the present application, including: a receiving unit 101, a determining unit 102 and a connecting unit 103.
The receiving unit 101 is configured to receive a connection request message of a management station, where the connection request message carries an IP address type of the management station.
The determining unit 102 is configured to determine, according to the IP address type, a socket corresponding to the IP address type of the management station in a socket set, where the socket set includes an IPv4 socket and an IPv6 socket.
A connection unit 103 for remotely connecting the management station using the socket.
Specifically, the determining unit 102 is specifically configured to determine, in the socket set, a socket corresponding to the IP address type of the management station according to the IP address type as follows:
determining a socket with a read-write event in a socket set; and according to the IP address type, taking the socket with the read-write event as the socket corresponding to the IP address type of the management station.
Optionally, the receiving unit 101 is further configured to: and receiving a command request message sent by the management station.
Correspondingly, the device also comprises: a processing unit 104 for responding to the command request message.
Further, the determining unit 102 is further configured to: and determining the IP address type of the command request message sent by the management station, and determining a socket corresponding to the IP address type according to the IP address type.
It should be noted that, for the implementation of the functions of each unit in the remote connection device in the embodiments of the present invention, reference may be further made to the description of the related method embodiments, and details are not repeated herein.
Another remote connection device is provided in an embodiment of the present application, as shown in fig. 6, the device includes:
a memory 202 for storing program instructions.
A transceiver 201 for receiving and transmitting remote connection instructions.
And the processor 200 is configured to call the program instructions stored in the memory, and execute any method flow described in the embodiments of the present application according to the obtained program according to the instructions received by the transceiver 201. The processor 200 is configured to implement the method performed by the determining unit (102), the connecting unit (103) and the processing unit (104) shown in fig. 5.
Where in fig. 6, the bus architecture may include any number of interconnected buses and bridges, with various circuits of one or more processors, represented by processor 200, and memory, represented by memory 202, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface.
The transceiver 201 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium.
The processor 200 is responsible for managing the bus architecture and general processing, and the memory 202 may store data used by the processor 200 in performing operations.
The processor 200 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD).
Embodiments of the present application also provide a computer storage medium for storing computer program instructions for any apparatus described in the embodiments of the present application, which includes a program for executing any method provided in the embodiments of the present application.
The computer storage media may be any available media or data storage device that can be accessed by a computer, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A remote connection method, comprising:
receiving a connection request message of a management station, wherein the connection request message carries an IP address type of the management station;
determining a socket corresponding to the IP address type of the management station in a socket set according to the IP address type, wherein the socket set comprises an IPv4 socket and an IPv6 socket;
and remotely connecting the management station by using the socket.
2. The method of claim 1, wherein determining a socket in a socket set corresponding to an IP address type of a management station based on the IP address type comprises:
determining a socket with a read-write event in a socket set;
and according to the IP address type, taking the socket with the read-write event as a socket corresponding to the IP address type of the management station.
3. The method of claim 1, wherein after remotely connecting the management station using the socket, the method further comprises:
and receiving a command request message sent by the management station, and responding to the command request message.
4. The method of claim 3, wherein prior to responding to the command request message, the method further comprises:
determining the IP address type of a command request message sent by the management station;
and determining a socket corresponding to the IP address type according to the IP address type.
5. A remote connection device, comprising:
a receiving unit, configured to receive a connection request message of a management station, where the connection request message carries an IP address type of the management station;
a determining unit, configured to determine, according to the IP address type, a socket corresponding to the IP address type of the management station in a socket set, where the socket set includes an IPv4 socket and an IPv6 socket;
a connection unit for remotely connecting the management station using the socket.
6. The apparatus according to claim 5, wherein the determining unit is specifically configured to determine, in the socket set, a socket corresponding to the IP address type of the management station according to the IP address type as follows:
determining a socket with a read-write event in a socket set;
and according to the IP address type, taking the socket with the read-write event as a socket corresponding to the IP address type of the management station.
7. The apparatus of claim 5, wherein the receiving unit is further to: receiving a command request message sent by the management station;
the device further comprises: and the processing unit is used for responding to the command request message.
8. The apparatus of claim 7, wherein the determination unit is further to: and determining the IP address type of the command request message sent by the management station, and determining a socket corresponding to the IP address type according to the IP address type.
9. A remote connection device, comprising:
a memory for storing program instructions;
a processor for calling the program instructions stored in the memory and executing the method of any one of claims 1 to 4 according to the obtained program.
10. A computer readable storage medium having stored thereon computer instructions which, when run on a computer, cause the computer to perform the method of any of claims 1-4.
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| CN114553831B (en) | 2020-11-25 | 2023-09-08 | 华为技术有限公司 | Method and system related to sending management IP address |
| CN115767684B (en) * | 2022-11-09 | 2023-09-08 | 深圳金信诺高新技术股份有限公司 | Data transmission method, device, equipment and medium |
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