WO2012068900A1

WO2012068900A1 - File transfer method, transfer engine and network element

Info

Publication number: WO2012068900A1
Application number: PCT/CN2011/077882
Authority: WO
Inventors: 郭彤
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-11-23
Filing date: 2011-08-01
Publication date: 2012-05-31
Also published as: CN102082816A; CN102082816B

Abstract

The present invention relates to a file transfer method, transfer engine and network element. The method comprises: the file transfer engine receiving download information sent by a upper level network element, the download information carrying a file address list of the file to be transferred and a topology table of the transfer network address; obtaining the file to be transferred from the upper level network element; when the file is not from a local network element, transferring the file according to the file address list and the topology table of the transfer network address carried by the download information. Through the file transfer engine residing on each network element, the present invention realizes the interconnection between file transfer engines, satisfies the high-efficiency file transfer of each network element level of a tree network architecture, and solves problem of file transfer incompatibility of different standard equipment, the problem of different network element codes from different levels of the same standard equipment, and the problem of files cannot be transferred in parallel by network elements from the third level and lower in the current system, thus greatly improving the level of parallel file transfer and enhancing transfer speed.

Description

File transmission method, transmission engine and network element

The present invention relates to the field of communication technologies, and in particular, to a file transmission method, a transmission engine, and a network element of a single board software in a communication device under a multi-layer complex networking architecture. Background technique

At present, under the base station system of mobile communication, a network management system manages a large number of network elements in the background, and the number of specific management can reach 3,000. Each network element may also be connected with many other network elements at the same time to form a network element. Tree-shaped distribution structure. Even in a flat-structured network, there are multiple levels of file forwarding between modules and boards. From the perspective of file transfer, it can still be considered a tree structure. In other network management systems other than mobile communication systems, such a tree networking structure is also widespread.

The existing file transfer method can ensure that the number of layers is transmitted in parallel for files of more than three layers, and when the third layer of network elements transmits files to the lower level network element, it becomes serial transmission. The only transmission method used is to host different processes on the network elements of each level, and each level of network elements resides in different codes. For devices of different standards, because of different developers, it is impossible to transfer files between each other.

With the increasing number of management network elements in the mobile communication network management system, the file transmission between different devices or systems is still faced. The existing file transmission methods cannot meet the requirements, and a general and efficient file is required. The transmission method is to solve the above problem. Summary of the invention

The main object of the present invention is to provide a file transmission method, a transmission engine and a network element, which are intended to improve the versatility and efficiency of file transmission.

In order to achieve the above object, the present invention provides a file transmission method, which includes the following steps: The file transfer engine receives the download message sent by the upper-level network element, where the download message carries a file address list of the file to be transmitted, and a transport network address topology table;

Obtain the files to be transferred from the upper-level network element;

When the file is not a file of a local network element, the file is transmitted according to the file address list carried by the download message and the transport network address topology table.

Preferably, the transmitting, according to the file address list carried by the download message, and the transport network address topology table, the file includes:

Finding a list of the file addresses, and obtaining a target address corresponding to the file;

Locating the transport network address topology table, obtaining the lower-level network element address of the local network element, and generating a lower-level network element address list;

Creating a plurality of sending processes according to the lower-level network element address list to send the file to the corresponding lower-level network element in parallel; and simultaneously performing the file address list and the transmission network address topology table corresponding component transmission engine to continue the received file deal with.

Preferably, the file transfer engine caches the file by public memory or dynamically creating a file cache when transferring files in parallel.

Preferably, after the obtaining the file to be transmitted from the upper-level network element, the method further includes: when the file is a file of the local network element, storing the file in the local network element.

Preferably, the file address list includes: a file list and a target network element address list; when the network element where the file transfer engine is located is a first-level network element, the upper-level network element of the first-level network element is a background server The file list, the target network element address list, and the transport network address topology table are generated by the background server according to the downloaded file selected by the user and the final target network element.

The present invention also provides a file transfer engine, where the transfer engine includes: a receiving module and a file transfer module;

a receiving module, configured to receive a download message sent by the upper-level network element, where the download message carries a file address list of files to be transferred, a transport network address topology table, and files to be transferred from the upper-level network element;

And a file transmission module, configured to: when the file is not a file of a local network element, transmit the file according to the file address list carried by the download message and the transport network address topology table.

Preferably, the file transmission module includes: a backtracking unit and a file transfer unit;

a backtracking unit, configured to search the file address list, obtain a target address corresponding to the file, and search the transport network address topology table, obtain the lower-level network element address of the local network element, and generate a subordinate List of network element addresses;

a file transfer unit, configured to create a plurality of sending processes according to the lower-level network element address list, and send the file to the corresponding lower-level network element in parallel; and simultaneously send the file address list and the file transfer bow of the corresponding lower-level network element The I engine continues processing the received file.

Preferably, the transmission engine further includes: a storage module, configured to store the file in a local network element when the file is a file of a local network element.

Preferably, the storage module is further configured to cache the file by using a common memory or dynamically creating a file cache when the file transfer unit transfers the file in parallel.

The present invention also provides a file transfer network element, the network element comprising a file transfer engine as described above.

The file transmission method, the transmission engine, and the network element provided by the present invention can receive the file transmission message sent by the upper-level network element and the lower-level network element by using the file transmission engine on each network element. Sending file transfer messages realizes the interconnection and intercommunication between each file transfer engine, and satisfies the efficient file transfer of each layer of network elements under the tree network architecture; solves the incompatibility of file transfer between different system devices in the existing system, Different levels of the same standard equipment The network element codes are different, and the network elements below the third layer in the current system cannot be transmitted in parallel. Especially for the network network with more layers, the file transfer engine can greatly improve the parallelism of file transfer and improve the transfer speed. DRAWINGS

1 is a schematic flow chart of an embodiment of a file transmission method according to the present invention;

1a is a schematic diagram of a file address list in an embodiment of a file transmission method according to the present invention;

FIG. 1b is a schematic diagram of a transport network address topology table according to an embodiment of the file transmission method of the present invention;

2 is a schematic flowchart of a file address list carried by a download message and a transport network address topology table for transmitting a file according to an embodiment of the file transfer method of the present invention;

3 is a schematic structural diagram of an embodiment of a file transfer engine according to the present invention;

4 is a schematic structural diagram of a file transmission module in an embodiment of a file transmission engine according to the present invention; and FIG. 5 is a schematic structural diagram of an embodiment of a file transmission network element according to the present invention. detailed description

The solution of the embodiment of the present invention is mainly to store a file transmission engine on each network element, and the file transmission engine can receive the file transmission message sent by the upper-level network element, and can also send the file transmission message to the lower-level network element to implement each file. The transmission engines communicate with each other to meet the efficient file transfer of each layer of network elements under the tree network architecture.

1 is a schematic flowchart of a file transmission method according to an embodiment of the present invention. As shown in FIG. 1, an embodiment of the present invention provides a file transmission method, including:

Step S101, the file transmission engine receives the download message sent by the upper-level network element, and the download message carries the specific. In this embodiment, the background module used for initiating the file transfer resides in the network management service. On the server, the foreground module for monitoring and controlling the file transfer download resides on the main control board of the network element device.

In this embodiment, the network element that participates in file transmission resides in the file transmission engine, and the transmission protocol is defined according to different transmission link conditions.

The user selects the file to be downloaded and the final target network element to be downloaded in the background server, and the background server generates a logical address list of the target network element, that is, the target network element address table, and the transmission network address topology table according to the file list and the final target network element. .

Afterwards, the background module in the background server sends the download message to the first-level network element. The download disappears, and the file address list includes a target file list and a target network element address list.

When the network element where the file transfer engine is located in the embodiment is the first-level network element, the upper-level network element of the first-level network element is the background server.

This embodiment uses the network element where the current file transmission engine is located as the first-level network element as an example.

Step S102: Obtain a file to be transmitted from the upper-level network element.

Step S103, determining whether the file is a file of the local network element, and if yes, proceeding to step S105, otherwise, proceeding to step S104;

Step S104: The file is transmitted according to the file address list carried by the download message and the transport network address topology table.

Step S105: Store the file in the local network element.

In the above step S102, step S103, step S104, and step S105, after the file transmission engine receives the download message sent by the background server, the file transmission engine acquires the file to be transmitted from the background server, if the network element where the transmission engine is located is not the first level network. The element obtains the file to be transmitted from the upper-level network element, and creates a file receiving process by using a protocol customized by the file transfer engine. Currently supported protocols include: FTP protocol and sliding window protocol. In the step S103, the file transfer engine first determines, according to the attribute of the received file, whether the file is a local network element, that is, the first-level network element file, and if it is a local file, saves the file to the local network element. If it is not a local file, the file is transmitted according to the file address list carried by the download message and the transport network address topology table, until the file is transmitted to the final target network element, and the specific transmission process is:

In the step S104, after the file transmission engine control process of the first-level network element receives the download message, the file, the file address list, and the transmission network address topology table, the file is started, and the backtracking function is started, in the transmission network address topology table. The lower-level network element address of each network element (node) is found, and the lower-level network element address table is generated to clarify the lower-level destination address of the file sent by the network element.

The file transfer node of the first-level network element generates a plurality of sending processes to send files to the lower-level network element in parallel according to the generated lower-level address list, and the sending process simultaneously lists the file address list and the lower-level node corresponding to the transport network address topology table. The network topology sub-table, that is, the lower-level sub-top table is sent to the lower-level node for file transfer control. To ensure that the lower-level network element continues to send to the next-level address. The file transfer engine of the first-level network element sends the above information to the file transfer engine of the lower-level network element through the download message, and the file transfer engine control process of the lower-level network element continues to process according to the above steps after receiving the download message, and determines whether the file is The local file, if yes, remains in the local network element. If it is not a local file, the lower-level network element address of the local network element corresponding to the file destination address is found according to the file address list in the download message and the sub-top topology table. The lower-level NEs that are sent to the local NE are sent down one by one until the file is forwarded to the NE where the corresponding destination address is located.

In this embodiment, the file transfer engine residing on each network element can receive the download message of the file transmission by the upper-level network element, and can also send the download message of the file transmission to the lower-level network element, thereby solving the mutual problem of each file transfer engine. Interconnection between the two; guarantees the transmission of multi-level files. At the same time, the file transfer engine constructs a transport network address topology table, and can continuously reduce it to a sub-table during the transmission process, and transmit between the upper and lower network elements. According to this table, any network element can find the lower level. The target sent. This ensures that the file transfer engine is suitable for complex multi-level topology network transmission.

The following is a description of a file address list which is sent to the target address 1 by a layer network element. FIG. 1a is a schematic diagram of a file address list according to an embodiment of the file transmission method of the present invention, and FIG. 1b is a file transmission according to the present invention. A schematic diagram of a transport network address topology table according to an embodiment of the present invention, as shown in FIG. 1a and FIG. 2b, where FIG. 1A and FIG. 2b are files received by a layer-one network element from a root node (upper-level network element), respectively. Address list and transport network address topology table.

First, the layer-one network element file transmission engine receives the download message sent by the root node, where the message carries a file address list and a transport network address topology table;

Specifically, when the layer-one-element file transfer engine receives the file, the file includes the file 1, the file 2, and the file 3. The layer-one-element file transfer engine knows that the file is not a local file from the file address list, and Knowing the target addresses of the above files, for example, file 1 and file 3 need to be delivered to the target address 1, and the file transfer engine finds that the file 1 is connected to the layer-one network element from the transport network address topology table according to the target address 1. The lower-level network element is layer 2 network element 1, and the lower-level network element of file 2 connected to the layer-one network element is layer 2 network element 2, and then, the layer-one network element associates the file address list and the transmission network address topology table with the lower level The sub-topology table is sent to the layer 2 network element 1 and the layer 2 network element 2, and at the same time, the file 1 is sent to the layer 2 network element 1, and the file 2 is sent to the layer 2 network element 2. The layer 2 network element 1 and the layer 2 network element 2 pass the file down step by step according to the above rules until the file 1 and the file 2 are sent to the destination address 1.

The following is an example of downloading the CC board and PTR board of the WIMAX ( Worldwide Interoperability for Microwave Access) system. WIMAX is an emerging broadband wireless access technology that provides high-speed connectivity to the Internet. ; CC is the baseband side main control board of the WIMAX base station system; PTR is the RF side master of the WIMAX base station system In the WIMAX system, the WIMAX network management background, the CC board, and the PTR form a layered tree structure. In this example, the WIMAX network management system has two CC boards (first-level network elements) connected to each other. The CC board is connected to three PTRs (second-level network elements). The process of downloading versions through each network element file transfer engine is mainly divided into the following steps:

A. The background sorts the file selected by the user and the target network element, and successively stores all the target tasks of the same file in a file priority manner, and generates a task file, that is, a file address list and a corresponding transmission network address topology. table.

B. The background sends the download message to the two CCs, that is, the two lower-level NEs. After receiving the download message, the CC board uses FTP (File Transfer Protocol) to obtain the task file from the background.

C. After obtaining the task file, the CC board creates a receiving process to receive the file. After receiving the completion, it determines whether it is the final destination node. If yes, the received file is stored locally and the next file is received. The two CCs are received. The board obtains the version file from the background and stores it locally.

D. If the CC board determines that the received file is not a local file, the tree structure diagram of the target network element, that is, the lower-level sub-top table corresponding to the transport network address topology table, is generated according to the logical addresses of all the targets of the current file. The download message is sent to the control process of the next-level network element node in the tree diagram. In this example, the three PTRs connected to each CC board receive the download message sent by the CC at the same time.

E. After receiving the file download message, the file transfer engine control process of the lower-level network element (PTR board) continues the process of C and D. After receiving the version file of the PTR, it determines that the target address is a local file, and then it will receive The file is stored locally. The file transfer process ends.

According to the above example, the file transfer engine in the CC board and the PTR board ensures that six PTR version files are simultaneously downloaded. If there are more layers or leaf nodes in the network, the file described in this embodiment is used. The efficiency gain brought by the transmission engine is more obvious, thus maximizing The limit improves the efficiency of file transfer. At the same time, the file transfer engine provides complete scheduling and anti-collision functions, can handle various exceptions, and ensures the reliability of file transfer. When the method is actually promoted and applied, the reliability and development efficiency of file transmission between devices in the industry can be effectively improved, and the user's satisfaction with the device is improved.

As can be seen from the above example, the file transfer engine has a target address backtracking function, which can calculate the lower node of the node corresponding to the final download target address from the transport network address topology table. This ensures that each node participating in the transmission can find the destination for the next level of transmission until the destination address of the download is reached.

Further, in this embodiment, when any one of the upper-level node network elements sends a file to the lower-level node network element, the parallel transmission can be performed according to the agreed maximum number of simultaneous transmission processes.

During the transmission process, all sending processes can use the same common memory, and can dynamically create file caches within each sending process. When a large number of files are allowed to be transferred in parallel, the common memory method can be used to reduce the memory usage, which requires that the memory must be larger than the file size transferred. When the degree of parallelism is not high or the memory resources are sufficient, each sending process can dynamically create its own file cache.

This embodiment provides a general file transfer engine that satisfies efficient file transfer of each hierarchical network element in a tree network architecture. It solves the incompatibility of file transmission between different systems in the existing system. The network element codes of different levels of the same system are different, and the network elements below the third layer in the system cannot be transmitted in parallel. Especially for a network with a large number of network elements, the file transfer engine can greatly improve the parallelism of file transfer and increase the transfer speed.

2 is a schematic diagram of a process of transmitting a file according to a file address list and a transport network address topology table carried in a download message according to an embodiment of the file transfer method of the present invention. As shown in FIG. 2, the file carried in the download message according to step S103 is shown in FIG. The address list, and the steps of transmitting the network address topology table to the file, including:

Step S1031: Find a file address list, and obtain a target address corresponding to the file; Step S1032: Find a transport network address topology table, obtain a lower-level network element address that is connected to the local network element, and generate a lower-level network element address list.

Step S1033: Create a plurality of sending processes to send the file to the corresponding lower-level network element according to the lower-level network element address list, and the file transfer 1 of the corresponding lower-level network element continues processing the received file.

3 is a schematic structural diagram of an embodiment of a file transfer engine according to the present invention. As shown in FIG. 3, an embodiment of the present invention provides a file transfer engine, including: a receiving module 301, a file transfer module 302, and a storage module 303;

The receiving module 301 is configured to receive a download message sent by the upper-level network element, where the download message carries the network element to obtain a file that needs to be transmitted;

Specifically, in this embodiment, the background module for initiating the file transfer resides on the network management server, and the foreground module for monitoring and controlling the file transfer download resides on the main control board of the network element device.

When the network element where the file transfer engine is located in the embodiment is the first-level network element, the upper-level network element of the first-level network element is the background server. This embodiment uses the network element where the current file transmission engine is located as the first-level network element as an example for description.

The file transmission module 302 is configured to: when the file is not a file of the local network element, transmit the file according to the file address list carried in the download message and the transport network address topology table.

After the file transfer engine receives the download message sent by the background server, the file to be transmitted is obtained from the background server. If the network element where the transport engine is located is not the first-level network element, the file to be transmitted is obtained from the upper-level network element, The file receiving process is created by a protocol that is customized by the file transfer engine. The currently supported protocol modes include: FTP protocol and sliding window protocol.

The file transfer engine first determines whether the file is a local file according to the attributes of the received file. The network element is the first-level network element file. If it is a local file, the file is saved to the local network element. If it is not a local file, the file is transmitted according to the file address list carried by the download message and the transport network address topology table until the file is transmitted to the final target network element, and the specific transmission process is:

After the file transfer engine control process of the first-level network element receives the download message and the file, the file address list, and the transmission network address topology table, the backtracking function is started, and each final target is found in the transport network address topology table. The address is connected to the lower-level NE address of the local network element (node), and the lower-level network element address table is generated, so that the destination address of the lower-level sending file of the local network element is clarified.

The file transfer node of the first-level network element generates a plurality of sending processes to send files to the lower-level network element in parallel according to the generated lower-level address list, and the sending process simultaneously lists the file address list and the lower-level node corresponding to the transport network address topology table. The network topology sub-table, that is, the lower-level sub-top table is sent to the lower-level node for file transfer control. To ensure that the lower-level network element continues to send to the next-level address. The file transfer engine of the first-level network element sends the above information to the file transfer engine of the lower-level network element through the download message, and the file transfer engine control process of the lower-level network element continues to process according to the above steps after receiving the download message, and determines whether the file is Local file, if it is local The network element, if it is not a local file, finds the lower-level network element address of the local network element corresponding to the target address of the file according to the file address list in the download message and the lower-level sub-top table, and sends the file to the lower-level network of the local network element. The element is sent down in order, until the file is forwarded to the network element where the corresponding destination address is located.

The transmission engine further includes: a storage module 303, configured to be connected to the receiving module 301, configured to store the file in the local network element when the file is a file of the local network element.

4 is a schematic structural diagram of a file transfer module in an embodiment of the file transfer engine of the present invention. As shown in FIG. 4, the file transfer module 302 includes a traceback unit 3021 and a file transfer unit 3022, where:

The backtracking unit 3021 is configured to search a file address list, obtain a target address corresponding to the file, and search a transport network address topology table, obtain a lower-level network element address of the local network element, and generate a lower-level network element address list.

The file transmission unit 3022 is configured to create a plurality of sending processes to send files to the corresponding lower-level network element according to the lower-level network element address list; and simultaneously process the file address list and the file transmission engine of the transmission network to process the received file. .

Further, the storage module 303 is further configured to cache the file by using a common memory or a dynamically created file cache when the file transfer unit transfers the file in parallel. The file transfer engine of the embodiment of the present invention has a target address backtracking function, which can calculate a lower node of the local node corresponding to the final download target address from the transport network address topology table. This ensures that each node participating in the transmission can find the target for the next level of transmission until the destination address of the download is reached.

This embodiment provides a general file transfer engine that satisfies efficient file transfer of each hierarchical network element in a tree network architecture. It solves the incompatibility of file transmission between different systems in the existing system. The network element codes of different levels of the same system are different, and the network elements below the third layer in the system cannot be transmitted in parallel. Especially for the network network with more layers, the file transfer engine can greatly improve the parallelism of file transfer and improve the transfer speed.

FIG. 5 is a schematic structural diagram of an embodiment of a file transmission network element according to the present invention. As shown in FIG. 5, an embodiment of the present invention provides a file transmission network element, where the network element may include the file transmission engine 501 described in the foregoing embodiment. .

The file transfer engine of this embodiment has great significance for the version upgrade of the communication system having a large number of network elements. The embodiment of the present invention is also applicable to other areas where multi-level file transfer is required.

The file transmission method, the transmission engine, and the network element in the embodiment of the present invention can receive the file transmission message sent by the upper-level network element and send the file to the lower-level network element by hosting the file transmission engine on each network element. Transfer messages, realize the transfer of each file between the bow and the engine Interconnection and intercommunication, which satisfies the efficient file transmission of each level of network elements under the tree network architecture; solves the incompatibility of file transmission between different systems of the existing system, and the network element codes of different levels of the same system are different, and currently The problem that network elements below the third layer in the system cannot be transmitted in parallel. Especially for the network element network with more layers, the file transfer engine can greatly improve the parallelism of file transfer and improve the transfer speed.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included. Within the scope of protection of the present invention.

Claims

Claim

A file transfer method, comprising the steps of:

The file transfer engine receives the download message sent by the upper-level network element, where the download message carries a file address list of the file to be transmitted, and a transport network address topology table;

Obtain the files to be transferred from the upper-level network element;

The method according to claim 1, wherein the transmitting the file according to the file address list carried by the download message and the transport network address topology table comprises: searching the file address list, obtaining a target address corresponding to the file;

And sending a plurality of sending processes to send the file to the corresponding lower-level network element in parallel according to the lower-level network element address list; and sending the file address list and the lower-level sub-topology table corresponding to the transport network address topology table to the The corresponding lower-level network element continues to process the received file by the file transfer engine of the corresponding lower-level network element.

3. The method according to claim 2, wherein the file transfer engine caches the file by public memory or dynamically creating a file cache when the file is transferred in parallel.

The method according to claim 1, 2 or 3, wherein after the obtaining the file to be transmitted from the upper-level network element, the method further includes:

When the file is a file of a local network element, the file is stored in a local network element.

The method according to claim 1, wherein the file address list includes: a file list and a target network element address list; when the network element where the file transfer engine is located is a first-level network element, The upper-level network element of the first-level network element is a background server; the file list and the target network The file and the final target network element are generated.

A file transfer engine, wherein the transfer engine comprises: a receiving module and a file transfer module; wherein

The receiving module is configured to receive a download message sent by the upper-level network element, where the download message carries a file address list of the file to be transmitted, a transport network address topology table, and a file that needs to be transmitted from the upper-level network element;

The file transfer module according to claim 6, wherein the file transfer module includes: a traceback unit and a file transfer unit;

The backtracking unit is configured to search the file address list, obtain the target address corresponding to the file, search the transport network address topology table, obtain the lower-level network element address of the local network element, and generate the lower-level network Meta-address list;

The file transfer engine according to claim 6, wherein the transfer engine further includes: a storage module, configured to store the file locally when the file is a file of a local network element Network element.

The file transfer engine according to claim 8, wherein the storage module is further configured to cache the file by using a common memory or dynamically creating a file cache when the file transfer unit transfers the file in parallel.

A file transmission network element, wherein the network element comprises any one of claims 6-9 A file transfer engine as described.