CN107659516B

CN107659516B - Function control method and device for broadband remote access server BRAS

Info

Publication number: CN107659516B
Application number: CN201711007474.9A
Authority: CN
Inventors: 晁岳磊
Original assignee: Hangzhou H3C Technologies Co Ltd
Current assignee: Hangzhou H3C Technologies Co Ltd
Priority date: 2017-10-25
Filing date: 2017-10-25
Publication date: 2020-09-25
Anticipated expiration: 2037-10-25
Also published as: CN107659516A

Abstract

The utility model provides a function control method and device of Broadband Remote Access Server (BRAS), the BRAS comprises a User Plane (UP) and a Control Plane (CP), the method is applied to UP equipment and/or CP equipment, and comprises the following steps: the method comprises the steps that a plurality of function files generated for the equipment are stored in advance, wherein the function files comprise a basic function file and at least one extended function file; when the equipment is started, loading the basic function file to realize the basic function of the equipment; responding to a first function control request issued by a controller of the equipment, and finding out a corresponding extended function file according to the first function control request; and loading the searched extended function file to realize the corresponding extended function of the equipment. The technical scheme realizes the best use of the equipment without wasting resources.

Description

Function control method and device for broadband remote access server BRAS

Technical Field

The present disclosure relates to the field of computer network technologies, and in particular, to a method and an apparatus for controlling a function of a broadband remote access server BRAS.

Background

A BRAS (Broadband Remote Access Server) is an Access gateway for Broadband network applications. The architecture of a BRAS is shown in fig. 1, which mainly includes two roles: CP (Control Plane) and UP (User Plane). The CP is mainly used for user access control and user address allocation, authentication, authorization, charging, user online detection and the like; UP is mainly used for user traffic forwarding, user statistics, routing, multicast, MPLS (Multi-Protocol Label Switching), and the like, and thus may also be referred to as a forwarding plane. Fig. 1 also shows a CR (Core Router), a Web Server, a DHCP Server, an AAA (Authentication, Authorization, Accounting), a RADIUS (remote User dialing Authentication system), a data path Line, a tester, a management switch, a Service switch, and a PC (Personal Computer) to illustrate an application scenario of the entire BRAS. The CP also utilizes NFV (Network Function Virtualization) as a control node and a computing node.

Disclosure of Invention

The disclosure provides a method and a device for controlling functions of a Broadband Remote Access Server (BRAS) so as to solve the problem that the functions started by the BRAS are not adaptive to application scenes.

According to an aspect of the present disclosure, there is provided a method for controlling functions of a broadband remote access server BRAS, applied to a device of the BRAS, wherein the BRAS includes a user plane UP and a control plane CP, and the device is a UP device and/or a CP device, the method including:

the method comprises the steps of pre-storing a plurality of function files generated for equipment, wherein the function files comprise a basic function file and at least one extended function file;

when the equipment is started, loading the basic function file to realize the basic function of the equipment;

responding to a first function control request issued by a controller of the equipment, and finding out a corresponding extended function file according to the first function control request;

and loading the searched extended function file to realize the corresponding extended function of the equipment.

According to another aspect of the present disclosure, there is provided a function control apparatus of a broadband remote access server BRAS, applied in a device of the BRAS, wherein the BRAS includes a user plane UP and a control plane CP, and the device is a UP device and/or a CP device, the apparatus including:

the device comprises a function file storage unit, a function file processing unit and a function file processing unit, wherein the function file storage unit is used for pre-storing a plurality of function files generated for equipment, and the function files comprise a basic function file and at least one extended function file;

the function control unit is used for loading the basic function file to realize the basic function of the equipment when the equipment is started; and the expansion function file searching module is used for searching a corresponding expansion function file according to a first function control request issued by a controller of the equipment in response to the first function control request, and loading the searched expansion function file to realize the corresponding expansion function of the equipment.

In accordance with yet another aspect of the present disclosure, there is provided a function control apparatus of a broadband remote access server BRAS, comprising a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: implementing a method as described in any of the above.

In accordance with yet another aspect of the present disclosure, there is provided a machine-readable storage medium storing machine-executable instructions that, when invoked and executed by a processor, cause the processor to: implementing a method as described in any of the above.

According to the technical scheme, the basic function file of the equipment can be loaded to realize the basic function of the equipment when the equipment is started by pre-storing the basic function file and the plurality of extended function files of the equipment, the requirement of the equipment in most application scenes can be met, in other application scenes, the corresponding extended function files are loaded according to the requirement and the first function control request to realize additional functions, and the purpose of making the best use of things is realized without wasting resources.

Drawings

Fig. 1 shows a schematic diagram of a BRAS networking architecture;

fig. 2 is a flowchart illustrating a method for controlling a function of a broadband remote access server BRAS according to an embodiment of the present disclosure;

fig. 3 is a diagram illustrating a communication manner among the Controller, the CP device and the UP device;

fig. 4 shows a schematic structural diagram of a function control device of a broadband remote access server BRAS according to an embodiment of the present disclosure;

fig. 5 shows a schematic structural diagram of electronic device hardware according to an embodiment of the present disclosure.

Detailed Description

In the BRAS shown in fig. 1, the UP is typically implemented in a high-end router that supports BRAS traffic. The router supports a very large number of board types and services, and has many module types, and these functions of the router are not all needed in the BRAS. Usually, these functions are implemented after the router starts the operating system, and even the functions that are not used by the BRAS are loaded and started together in the starting process of the operating system, so that resources are wasted.

Therefore, the present disclosure provides a function control method and device for a broadband remote access server BRAS, so as to solve the problem that device resources are wasted due to unnecessary functions being started and loaded by UP devices and/or CP devices. To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

Fig. 2 is a flowchart illustrating a method for controlling functions of a broadband remote access server BRAS according to an embodiment of the present disclosure, where the BRAS may refer to fig. 1 and includes a user plane UP and a control plane CP, and the method may be applied to a device of the BRAS, that is, an UP device and/or a CP device. As shown in fig. 2, the method includes:

step S210, pre-storing a plurality of function files generated for the device, where the function files include a basic function file and at least one extended function file.

As previously noted, the UP device may be a high-end router. Specifically, the function file may be generated by a server of a device manufacturer, may be stored in a CF (compact flash) card of the device when the device is shipped, and may be updated subsequently in a network or other form. The function file may be in a bin file format as a version file of the device. It is known that the version file of the high-end router is usually one file, but in the embodiment of the present disclosure, it can be divided into a plurality of files according to functions.

Step S220, when the device is started, the basic function file is loaded to implement the basic function of the device.

Step S230, in response to a first function control request issued by a controller of the device, finding a corresponding extended function file according to the first function control request.

And S240, loading the searched extended function file to realize the corresponding extended function of the equipment.

It can be seen that, in the method shown in fig. 2, by pre-storing one basic function file and a plurality of extended function files of the device, the basic function file of the device can be loaded when the device is started to implement the basic function of the device, so as to ensure that the device can meet the requirements in most application scenarios.

In one embodiment of the present disclosure, in the method, the function file is generated according to a function category of the device. For example, the functional categories include at least one of: basic service function category in BRAS, the basic service includes at least one of the following: a network processor NP single board, a carrier-grade network address conversion CGN single board, a routing service and a BRAS service; expanding the function category of the veneer, wherein the expanded veneer comprises at least one of the following components: a basic control module BCM single board and a firewall module FW single board; a first application function category, the first application comprising at least one of: multi-protocol label switching (MPLS), CGN (common gateway network) service, Software Defined Network (SDN) and multicast; a second application function category, the second application comprising at least one of: local area network protocols, secure encryption, wide area network protocols, such as FR (Frame Relay), HDLC (High-Level Data link control), ATM (Asynchronous Transfer Mode).

Of course, in other embodiments, the division of the function categories may be set according to an application scenario or a requirement of the device, which is not limited by the present disclosure. In the above example, the device may be an UP device, the basic service is necessary in a BRAS service scenario, the extended board is a board that is rarely used in the BRAS service scenario, the first application is an application that is likely to be used in the BRAS service scenario, and the second application is an application that is hardly used in the BRAS service scenario. Therefore, the generation of a plurality of functional files is very flexible, the version files of a plurality of sub-versions can be customized and provided for users with different requirements aiming at the version file of the same version, the resources such as CPU (central processing unit), storage and the like of the equipment can be saved, and the cost of the equipment can be further reduced.

In an embodiment of the present disclosure, the method further includes, in response to a second function control request issued by the controller, performing at least one of the following operations: enabling at least one target line card board; controlling the equipment to operate in a target power interval; controlling the UP equipment to be connected with the target CP equipment according to the brand information of the target CP equipment; and controlling the CP equipment to be connected with the target UP equipment according to the brand information of the target UP equipment.

In one embodiment of the present disclosure, in the method described above, the first function control request and/or the second function control request are triggered by the controller through the license file.

The license file (license) may correspond to each function file, or each type of function control request. For example, the license that controls the CP device to operate at the target power is different from the license that controls the UP device to load the first application function file. That is, the loading and starting of a function file can be controlled by a license.

Fig. 3 shows a schematic diagram of a communication manner among the Controller, the CP device, and the UP device. As shown in fig. 3, the Controller can communicate with the CP device and the UP device through the Netconf protocol, and complete management and control of the CP device and the UP device. The CP device and UP device form data message channel according to reliable communication protocol to carry out normal communication of BRAS service, such as user's on-line, off-line, speed limit, charging, etc.

Fig. 4 is a schematic structural diagram illustrating a function control apparatus of a broadband remote access server BRAS according to an embodiment of the present disclosure, wherein the BRAS may include a user plane UP and a control plane CP as shown in fig. 1, and the apparatus may be applied to a device of the BRAS, that is, an UP device and/or a CP device. As shown in fig. 4, the function control device 400 of the broadband remote access server BRAS includes:

the function file storage unit 410 is configured to store a plurality of function files generated for the device in advance, where the function files include a basic function file and at least one extended function file.

A function control unit 420, configured to load a basic function file to implement a basic function of the device when the device is started; and the expansion function file searching module is used for searching a corresponding expansion function file according to the first function control request in response to the first function control request issued by the controller of the equipment, and loading the searched expansion function file to realize the corresponding expansion function of the equipment.

It can be seen that, in the apparatus shown in fig. 4, by pre-storing one basic function file and a plurality of extended function files of the device, the basic function file of the device can be loaded when the device is started to implement the basic function of the device, so as to ensure that the device can meet the requirements in most application scenarios.

In one embodiment of the present disclosure, in the above apparatus, the function file is generated according to a function category of the device.

In an embodiment of the present disclosure, in the above apparatus, the function category includes at least one of: basic service function category in BRAS, the basic service includes at least one of the following: a network processor NP single board, a carrier-grade network address conversion CGN single board, a routing service and a BRAS service; expanding the function category of the veneer, wherein the expanded veneer comprises at least one of the following components: a basic control module BCM single board and a firewall module FW single board; a first application function category, the first application comprising at least one of: multi-protocol label switching (MPLS), CGN (common gateway network) service, Software Defined Network (SDN) and multicast; a second application function category, the second application comprising at least one of: local area network protocol, secure encryption, wide area network protocol.

In an embodiment of the present disclosure, in the above apparatus, the function control unit 420 is further configured to respond to a second function control request issued by the controller, and perform at least one of the following operations; enabling at least one target line card board; controlling the equipment to operate in a target power interval; controlling the UP equipment to be connected with the target CP equipment according to the brand information of the target CP equipment; and controlling the CP equipment to be connected with the target UP equipment according to the brand information of the target UP equipment.

In one embodiment of the present disclosure, in the above apparatus, the first function control request and/or the second function control request are triggered by the controller through the license file.

The function control device 400 of the broadband remote access server BRAS provided by the present disclosure may be implemented by software, or may be implemented by hardware, or a combination of hardware and software. For example, in the case of software implementation, machine executable instructions corresponding to the function control device 400 of the broadband remote access server BRAS in the non-volatile memory 550 may be read into the volatile memory 540 by the processor 510 to be executed.

From a hardware aspect, as shown in fig. 5, which is a schematic structural diagram of electronic device hardware according to an embodiment of the present disclosure, except for the processor 510, the internal bus 520, the network interface 530, the volatile memory 540, and the nonvolatile memory 550 shown in fig. 5, other hardware (for example, an interface, not shown) may be included according to an actual function of the electronic device, and details of this are not repeated. For example, the electronic device may be a high-end router, acting as a UP device.

In various embodiments, the non-volatile memory 550 may be: a storage drive (e.g., hard disk drive), a solid state drive, any type of storage disk (e.g., compact disk, DVD, etc.), or similar storage medium, or a combination thereof. Volatile memory 540 may be: RAM (random Access Memory).

Further, the non-volatile memory 550 and the volatile memory 540 serve as machine readable storage media on which machine executable instructions corresponding to the function control apparatus 400 of the broadband remote access server BRAS executed by the processor 510 may be stored.

For the device embodiment, since it basically corresponds to the method embodiment, the relevant points may be referred to the partial description of the method embodiment, and will not be repeated here. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

In summary, according to the technical scheme of the present disclosure, by pre-storing one basic function file and a plurality of extended function files of the device, the basic function file of the device can be loaded when the device is started to implement the basic function of the device, so as to ensure that the device can meet the requirements in most application scenarios.

The above description is only for the preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure are included in the scope of protection of the present disclosure.

Claims

1. A method for controlling functions of a Broadband Remote Access Server (BRAS) is applied to a device of the BRAS, the BRAS comprises a User Plane (UP) and a Control Plane (CP), and the device is a UP device and/or a CP device, and the method comprises the following steps:

loading the searched extended function file to realize the corresponding extended function of the equipment;

wherein the first function control request is triggered by the controller through a permission file; the function file is generated according to a function category of the device.

2. The method of claim 1, wherein the functional categories include at least one of:

basic service function category in BRAS, the basic service including at least one of: a network processor NP single board, a carrier-grade network address conversion CGN single board, a routing service and a BRAS service;

expanding the function category of the veneer, wherein the expanded veneer comprises at least one of the following components: a basic control module BCM single board and a firewall module FW single board;

a first application function category, the first application comprising at least one of: multi-protocol label switching (MPLS), CGN (common gateway network) service, Software Defined Network (SDN) and multicast;

a second application function category, the second application comprising at least one of: local area network protocol, secure encryption, wide area network protocol.

3. The method of claim 1, further comprising,

responding to a second function control request issued by the controller, and executing at least one of the following operations:

enabling at least one target line card board;

controlling the equipment to operate in a target power interval;

controlling the UP equipment to be connected with the target CP equipment according to the brand information of the target CP equipment;

and controlling the CP equipment to be connected with the target UP equipment according to the brand information of the target UP equipment.

4. The method of claim 3, wherein the second function control request is triggered by the controller through a license file.

5. A function control device of Broadband Remote Access Server (BRAS) is characterized in that the device is applied to a device of the BRAS, the BRAS comprises a User Plane (UP) and a Control Plane (CP), the device is a UP device and/or a CP device, and the device comprises:

the function control unit is used for loading the basic function file to realize the basic function of the equipment when the equipment is started; the device comprises a controller, a corresponding function expansion file, a corresponding function expansion function file, a function expansion function file and a function expansion function file, wherein the function expansion function file is used for searching the corresponding function expansion function file according to a first function control request issued by the controller of the device;

6. The apparatus of claim 5, wherein the functional categories include at least one of: basic service function category in BRAS, the basic service including at least one of: a network processor NP single board, a carrier-grade network address conversion CGN single board, a routing service and a BRAS service; expanding the function category of the veneer, wherein the expanded veneer comprises at least one of the following components: a basic control module BCM single board and a firewall module FW single board; a first application function category, the first application comprising at least one of: multi-protocol label switching (MPLS), CGN (common gateway network) service, Software Defined Network (SDN) and multicast; a second application function category, the second application comprising at least one of: local area network protocol, secure encryption, wide area network protocol.

7. The apparatus of claim 5,

the function control unit is further configured to respond to a second function control request issued by the controller, and execute at least one of the following operations; enabling at least one target line card board; controlling the equipment to operate in a target power interval; controlling the UP equipment to be connected with the target CP equipment according to the brand information of the target CP equipment; and controlling the CP equipment to be connected with the target UP equipment according to the brand information of the target UP equipment.

8. The apparatus of claim 7, wherein the second function control request is triggered by the controller through a license file.

9. A function control apparatus of a broadband remote access server, BRAS, comprising a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: carrying out the method of any one of claims 1 to 4.

10. A machine-readable storage medium having stored thereon machine-executable instructions that, when invoked and executed by a processor, cause the processor to: carrying out the method of any one of claims 1 to 4.