WO2012116553A1

WO2012116553A1 - Network device and system and method for autonomously upgrading network device

Info

Publication number: WO2012116553A1
Application number: PCT/CN2011/082148
Authority: WO
Inventors: 晏清华; 尤岩枫; 钱宗文
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-02-28
Filing date: 2011-11-14
Publication date: 2012-09-07
Also published as: CN102651697A; CN102651697B

Abstract

A network device and a system and method for autonomously upgrading the network device. The system comprises a user PC, a service backbone network, an application server and a network device. The application server and the network device are connected through the service backbone network. During upgrade, in the system, the network device is configured to: check whether a file in a new version is available on the application server, if yes, detect a service request initiated by the user PC, if a webpage browsing request is detected, process a message initiated by a source address of the webpage browsing request and change a destination address of a webpage browsing protocol to a WEB page address of an upgrade wizard; and download a file in an upgraded version from the application server to the network device according to an operation instruction, of a user through the user PC, on a WEB page of the upgrade wizard. By applying the present invention, the user can autonomously upgrade the network device conveniently, reliability and effectively, thereby greatly reducing upgrade and maintenance costs of the operator and manufacturer.

Description

Network equipment, network equipment autonomous upgrade system and upgrade method

The present invention relates to the field of network communication technologies, and in particular, to a network device, a network device autonomous upgrade system, and an upgrade method.

Background technique

With the advancement of society, the improvement of living standards, the popularity of the Internet (INTERNET), various network devices are not limited to use in enterprises, and have been widely used in the hands of ordinary household users, among which DSL routing terminals are cheap and easy to access. Widely favored by the majority of users.

The dialing device of DSL (Digital Subscriber Line) is commonly known as a modem (Modem). Commonly used are terminals such as ADSL, VDSL, and SHDSL. The difference mainly lies in the difference between the uplink and the central office equipment, so the network bandwidth that can be provided is also very different. A DSL routing terminal can include the following functions: PPPoE/PPPoA dialing function; IPoE/IPoA function; routing function; NAT and its advanced application functions; QoS function; firewall function; port binding function; remote management and docking with network management equipment Features; wireless access; there may be other features that are not commonly used.

Usually a routing terminal product can contain one or more of the above functions. Due to the complex and diverse functions, the manufacturer cannot guarantee that the product is perfect when it enters the market. If there is a problem in the actual use, The problem must be corrected, and upgrading the product will be inevitable.

The general equipment upgrade methods include the following:

(1) Upgrade through the network management platform

When upgrading through the network management platform, the device needs to support the remote management protocol. In the upgrade process, the user is unaware. If the device is restarted during the upgrade process, the device may be damaged. Although there are many ways to avoid reboot during the upgrade process. The method of device damage, but these methods can not avoid restarting the device and causing the upgrade to fail. In addition, since the device will automatically restart after the upgrade is completed, the automatic restart operation will cause the user to disconnect the network. In this case, because the user does not know, if If the user is doing some important work, the user will have a bad impression on the product or operator, which will affect the image of the manufacturer.

(2) Upgrade by Remote File Transfer Protocol (FTP) or Trivial File Transfer Protocol (TFTP)

In the remote upgrade mode, the device needs to be able to support remote access first, and the function is turned on, but it may be turned off by default for security reasons. In addition, when upgrading, the upgrade server can only poll the IP address segment where the device is located. The IP number is quite large, and the address obtained by the device may be dynamic, so the upgrade rate will be reduced and consumed. It will be quite long. At the same time, the remote access upgrade method also faces the problem that the user does not know.

(3) Customer service to upgrade

The upgrade mainly relies on the customer service staff to provide on-site service. First, we must ensure that we can see the customer. Otherwise, we can only wait for the customer's complaint. In addition, the cost of the upgraded staff will be a considerable expense and the efficiency is low.

(4) A local upgrade of the inventory product, or an additional upgrade CD is distributed to the user.

Regardless of whether the local upgrade or the user provides a way to upgrade the disc, there will be additional overhead for repackaging or providing the disc, and there is no guarantee that no additional maintenance will be required after this upgrade.

The upgrade methods mentioned above have more or less deficiencies in some aspects, and the most critical issue is that the user's factors are not taken into account, that is, how to implement automatic user-oriented upgrades and upgrades on demand. Improve user experience and consider customers first. Summary of the invention

The technical problem to be solved by the present invention is to provide a network device, a network device autonomous upgrade system, and an upgrade method, which are used to solve the complicated upgrade process existing in the existing upgrade method, the inconvenience of upgrading due to lack of user participation, and the upgrade security risk. problem.

In order to solve the above problems, the present invention provides a network device autonomous upgrade system, including: a user PC, a service backbone network, an application server, and a network device, where the application server and the network device are connected through a service backbone network, The network device is configured to: check whether a new version file is available on the application server, if yes, detect a service request initiated by the user PC, and if a webpage browsing request is detected, initiate a source address requested by the webpage browsing The message is processed, and the destination address of the web browsing protocol is changed to the WEB page address of the upgrade wizard; and the upgrade version file is downloaded from the application server to the network device according to the operation instruction of the user on the WEB page of the upgrade wizard by the user PC. .

Preferably, the network device includes a terminal version detection module, a terminal URL redirection module, and a version upgrade module, where the application server includes a version server and an upgrade wizard server, where: the terminal version detection module is configured to: check whether the version server has A new version file is available, if any, the terminal URL redirection module is activated;

The terminal URL redirection module is configured to: detect a service request initiated by the user PC in an activated state, and if the webpage browsing request is detected, process the message initiated by the source address of the webpage browsing request, and execute the webpage browsing protocol thereof. Change the destination address to the WEB page address of the upgrade wizard server;

The version upgrade module is set to: download an upgrade version file from the version server to the network device according to an operation instruction of the user on the WEB page of the upgrade wizard server.

Preferably, the version server is configured to: store a version file of each different model product, set a separate folder for each different model product, and place the latest version file in a folder corresponding to each model product;

The upgrade wizard server is updated synchronously with the version server, and is set to: when the user logs in to the upgrade wizard WEB page, the upgrade wizard is opened, IP detection, product model detection, product model selection, version file download or delivery, and the upgrade wizard are performed. The function.

The network device further includes a terminal remote control module, which is configured to: provide a remote access function, perform remote FTP or TFTP upgrade, and upgrade the remote access mode when the operator prohibits the user from modifying the device configuration, and allows the user during the upgrade process. Control the remote upgrade process through the WEB page;

The application server further includes a remote upgrade server, and the remote upgrade server is configured to: according to the remote upgrade script embedded in the WEB page of the upgrade wizard, after the user selects the remote upgrade from the WEB page, the remote upgrade service is provided to the network device. The terminal version detection module is provided with an upgradeable status identifier bit, which is used to indicate whether an upgradeable file is available.

The present invention also provides a network device, including a terminal version detection module, a terminal URL redirection module, and a version upgrade module, where:

The terminal version detection module is configured to: check whether a new version file is available on the version server, and if yes, activate the terminal URL redirection module;

The version upgrade module is set to: download an upgrade version file from the version server to the network device according to an operation instruction of the user on the WEB page of the upgrade wizard server. Preferably, the network device further includes a terminal remote control module, configured to: provide remote access function, perform remote FTP or TFTP upgrade, and upgrade from a remote upgrade server by remote access mode when the operator prohibits the user from modifying the device configuration. During the upgrade process, the user is allowed to control the remote upgrade process through the WEB page.

The present invention also provides a network device autonomous upgrade method, which is applied to a system including a user PC, a service backbone network, an application server, and a network device, where the method includes:

The network device checks whether a new version file is available on the application server, and if yes, detects a service request initiated by the user PC, and if the webpage browsing request is detected, processes the text initiated by the source address of the webpage browsing request, Change the destination address of the web browsing protocol to the WEB page address of the upgrade wizard;

The upgrade version file is downloaded from the application server to the network device according to an operation instruction of the user on the application server's upgrade wizard WEB page by the user PC.

Preferably, the method further includes: reading and writing an upgradeable status flag, and if the flag indicates that an upgradeable file is available, starting to redirect the user browsing page to the upgrade wizard WEB page; otherwise, Then continue to version file detection to the application server.

Preferably, the method further includes: when the network device detects or reads the identifier to know that an upgradeable file is available, if the user does not select the upgrade, the network device periodically performs an upgrade reminder.

In order to improve equipment upgrade efficiency and reduce equipment maintenance costs, the embodiments of the present invention provide network equipment upgrades for users by using network equipments, and provide a new equipment upgrade strategy by combining various simple and easy-to-implement processing technologies. The upgraded network device can be any terminal or routing device that can provide Internet access services to users, but mainly for network access terminals that are widely sold by ordinary home users.

The main functions of the embodiment of the present invention are integrated by the network device itself, and do not depend on any network management platform. On the one hand, the upgrade system can be built at a very low cost, which is different from the remote upgrade using the network management system. Under this upgrade strategy, the user's upgrade must be carried out in a dispersed time, and there is no need to consider the server burden; On the other hand, the upgrade operation is completely completed by the user himself, which can greatly reduce the maintenance cost, and can also well avoid the equipment problem or the upgrade failure caused by the user's misoperation. The invention provides a convenient, reliable and efficient independent upgrade service for the user, and greatly reduces the upgrade and maintenance cost of the operator and the equipment manufacturer.

BRIEF abstract

1 is a structural networking diagram of a user-oriented network device autonomous upgrade system;

2 is a workflow diagram of a user-oriented network device autonomous upgrade system.

Preferred embodiment of the invention

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings.

In order to make up for the deficiencies of the various traditional upgrade methods mentioned in the background, the user-oriented network device is upgraded autonomously. In the technical solution of the present invention, the device periodically checks whether an upgraded version can be used according to a certain set mode. , and can prompt the user to upgrade, the option of the upgrade time is retained in the user's hands, the user will be given sufficient prompts and instructions during the upgrade process to avoid the upgrade. question.

The invention provides a set of user-oriented network devices, including:

The terminal version detecting module is configured to check whether a new version file is available on the version server according to the set mode, and activate the terminal URL redirection module if an upgrade file is available;

a terminal URL redirection module, configured to detect a service request initiated by the user end in an activated state, and if a webpage browsing request is detected, then process the message initiated by the source address of the webpage browsing request, and process the webpage The destination address of the browsing protocol is changed to the WEB page address of the upgrade wizard server. This way, when the user tries to open a web page, the upgrade wizard page is actually opened.

The terminal version detection module and the terminal URL redirection module are core modules of the network device autonomous upgrade system of the present invention.

The network device autonomous upgrade system based on the network device further includes an application server, and the application server may include:

The version server is actually a file server, which corresponds to the terminal version detection module. The version server sets separate folders for each model product, and the latest version file is placed in the corresponding folder of each model product, according to the actual situation. Additional files such as release notes can be placed; the upgrade wizard server is actually a WEB server, which is updated synchronously with the version server. When the user logs in to the upgrade wizard page, the upgrade wizard can be opened. The main functions include: IP detection, product model detection ( If possible, such as through network management protocol support, product model selection, version file download or delivery, upgrade wizard, etc.

The network device autonomous upgrade system may further include:

The terminal remote control module is used to provide remote access for remote FTP or TFTP upgrade. When the operator prohibits the user from modifying the device configuration, that is, the user is prohibited from logging in to the device as an administrator, the supplementary remote access must be used. The method is upgraded, but it is different from the conventional remote access upgrade method. During this upgrade process, the user can control the remote upgrade process through the WEB page.

Remotely upgrade the server, which corresponds to the terminal remote control module, embed the remote upgrade script in the WEB page, so that the user does not have to download the version to the local and then upgrade, but only needs Click the Upgrade button on the WEB page and follow the prompts to wait for the upgrade to finish.

As shown in FIG. 1 , an embodiment of a user-oriented network device autonomous upgrade system of the present invention is provided. The system includes: a user PC, a service backbone network, an application server, and a customer premise equipment (CPE). The CPE device is the network device of the present invention, wherein:

The application server is used to provide the upgrade version detection and upgrade wizard service; the application server can be built by the device manufacturer on the public network or by the service provider on the internal network. The application server may include an FTP server 101 and a WEB server 102.

The FTP server 101 is used to store upgrade files for various models.

Because the FTP server has both encrypted authentication, simple command line and file transfer functions, and the client function is extremely simple to implement, it is the first choice for the version server. On the one hand, the CPE module can periodically log in to the FTP server through the built-in script command to check whether a version is available for updating. On the other hand, the user can also download the version file from the FTP server by using the connection provided by the WEB server. In the FTP server, only the product versions of different models need to be placed in the directory respectively. The different models mentioned here refer to products used by different chip solutions, different functional structures, different operators, or different regions of the unified carrier. When the CPE performs version verification, it can directly enter the directory according to the inspection path set in the existing version to judge the version number, which saves the process of data query. Reference may be made to the description of the version detection module 103.

The WEB server 102 is used to provide guidance for user upgrades. There are various implementation methods, but the following elements are required: First, a complete product list must be provided, and a separate page is set for each product; You must prompt the user to save the current important session during the user's upgrade process. Do not turn off the power during the upgrade process. Third, you must explain the necessity of upgrading the version and let the user upgrade.

Here are two simple implementations based on the WEB server 102:

(1) If the model is a retail version purchased by the user on the market and has full control over the product, the server should exist on the public network. When the user visits the site, he or she can enter the page of the corresponding product, and the page displays the operation steps of the entire upgrade process with an entire page. A connection to the version download is also available. This solution is mainly used for customer local upgrades. Of course, if the product supports it, you can also use the method (2) below for remote upgrade, but you should give the user the option.

(2) If the product is delivered by the operator and the user is prohibited from modifying the parameters, the remote upgrade function can be added to the WEB site to give a prompt before the upgrade. When the user clicks the upgrade button on the page, the site will The CPE device is upgraded remotely. Of course, the remote upgrade function of the CPE device must be enabled. The common methods are TFTP, FTP, and HTTP. In particular, the WEB site can query the MAC address of the CPE device and match the product OUI歹|] table, and automatically jump to the page of the corresponding product when the user accesses it.

Customer Premise Equipment (CPE) includes: version detection module

103, URL redirection module 104, version upgrade module 105, where:

The version detection module 103 is configured to detect and activate the version file. The URL redirection module 104 periodically checks the version after the CPE device is started. For example, first set a minimum update period, perform a check when the device first accesses the INTERNET, and then wait for one cycle and then check again. The device startup time can be used as a standard, so as to spread the load of the server as much as possible.

According to the server configuration shown in Figure 1, the version check can be performed by version number. A simple method is as follows: The module writes a fixed upgrade file directory URL, which can be rewritten when the version is upgraded, such as:

Ftp://usr:pwd@download.pro.net:2121/chip/oem/ver/area/

When version detection is required, log in to the server and use the Is command to view the version file name (if the file name is the version number), or use the cat command to view the version number in a text file in the directory (if the version file name is not the version number) ), and then compare with the current version of the CPE device. If the version number on the server is higher than the version number of the CPE device, you can upgrade it; or, you can place a text file in the version path of the server, where all can be written. Use this upgrade file to upgrade the version list. When the CPE device matches the same field as the current version in this list, it indicates that it can be upgraded. When it is possible to upgrade, the version detection module 103 writes the "upgradeable status flag" to 1 while activating the URL redirection module 104. The URL redirection module 104 is configured to filter the data packet sent by the user PC, and redirect the HTTP request packet that meets the rule.

The URL redirection module writes a fixed redirection address, that is, the page corresponding to the product in the WEB site address in FIG. 1. When the URL redirection module filters a webpage browsing request, the content of the request is forcibly pointed to Upgrade the address of the site.

The version upgrade module 105 is configured to download an upgrade version file from the version server to the network device according to an operation instruction of the user on the WEB page of the upgrade wizard server. Since many applications on the user's PC send HTTP requests at startup, but not necessarily page views, there may be an embedded advertisement. If such requests are directed to the upgrade site, the upgrade guide page may not be displayed. . Therefore, how the URL redirection module configures reasonable filtering rules becomes an important issue.

According to the HTTP protocol, a typical page view request has the following characteristics: A), a browser request to manually enter an address or domain name must be a GET request, not a GET can be excluded; B), for a GET request, a normal page visit The content of the original Request URI field is usually "/", and the content of the Accept field is usually "*/*\r\n". For a complete page access, the page type is also entered. Both fields are different. In contrast, if there are advertisements embedded in other applications, usually some media file connections, the Request URI is not "/", and the content of the Accept field is "*/*\r\n". The message is excluded; C), the web browsing request message will contain the browser and operating system information, if it does not include the browser, it can be excluded, and the browser version is too low, such as IE6 and below can also be excluded. Therefore, the filtering rules can be set according to the above points to filter out abnormal web browsing requests.

In addition, some application software will pop up a browser window. There may be some operational restrictions on this type of window. To solve this kind of problem, you can also consider the following methods:

When filtering to an eligible request package, it does not change its request address. Instead, it adds a script to the page in response to the message. This script will pop up a new page that points to the upgrade site in Figure 1. . The disadvantage of this method is that pop-ups may be blocked by security software.

Considering that the upgrade operation is not very urgent (because a version has been used for a long time), this prompt will be performed periodically before the user completes the upgrade, and the method of converting the request content is more Reliable.

The present invention is directed to the foregoing embodiment of the network device autonomous upgrade system, and correspondingly provides an embodiment of the control method of the system. The process is as shown in FIG. 2, and includes the following steps:

201: The CPE device needs to be connected to the network after booting. The device needs to be able to connect to the Internet, and the user PC connected to it must be able to connect to the Internet. Considering that devices such as large routers and switches usually have professional maintenance, although The above features are also met, and the solution of the present invention may be selected or not selected.

The application object here is usually a CPE device with routing function. When it accesses the Internet or specifies a network, the version detection module is started. The judgment of accessing the network can be completed by PPPoE dialing or by obtaining a network response.

202: After the version detection module is started, it works according to the principle of the above-mentioned version detection module 103. In addition to querying the specified server for the version status, it is also required to read and write the "upgradeable status flag".

203: When the value of the "upgradeable status flag" read is 1, it indicates that an upgradeable file is available. When it is 0, it indicates that no upgrade file is available. The version detection module needs to check the identifier bit when it starts. If it is 1, skip the upgrade file detection and directly start the URL redirection module. Go to step 206. If it is 0, perform version file detection. Go to step 204.

204: When it is detected that an upgrade file is available on the server, write the above upgradeable status flag to 1 and start the URL redirection module; otherwise, proceed to step 212 to wait, and continue to detect in the next cycle. In either case, the version detection module will go to sleep when the process is complete.

206 - 208: The URL redirection module will work on the principle of the URL redirection module 104 as described above, and when the redirection is completed, the module process terminates.

Considering that a CPE device can provide Internet access services for multiple users, to ensure that one of the users does not affect others when upgrading, consider determining the current number of users and service types, such as DHCP client list, user port number, etc. . Of course, this should not be a problem for ordinary home users.

209: When the WEB page of the version upgrade site is enabled on the user's PC, the user can choose to upgrade or upgrade after completing the work at hand. If the user does not choose to upgrade, the device will periodically update the reminder, which is similar to the upgrade prompt of the windows system or some other software, not It can be a problem for users.

210 - 211: After the upgrade is performed, the version upgrade module is upgraded. To ensure the upgrade is successful, the version upgrade module can select a reliable implementation solution, which is specifically the rollback step after the upgrade fails. This is not the case of this embodiment. The scope of the discussion. After the upgrade is successful, the version upgrade module needs to write the upgradeable status flag to 0.

Considering that the CPE is turned on but there is no user access for a long time, or the user does not browse the web while connecting to the Internet, the system needs to be perfected.

212: Enters the sleep state until the next check time point defined by the rule comes.

213: At the end of the sleep time of the version detection module, firstly, it is not detecting whether the upgrade is possible, but whether the URL redirection module is still running, and if it is still running, continuing to enter the sleep state; otherwise, performing step 203.

214 - 215: When a new user accesses, first check if the user is the only user, if not, it means that the user has already performed the upgrade, so there is no need to give special treatment to the user. If it is unique, it can be considered that the CPE device has been idle for a period of time. If it can be upgraded, the user needs to be reminded to perform processing, that is, step 213 is performed. The only user here refers to PC Internet users and does not include other services such as IP phones or IPTV.

For some CPE devices that can download the version directly from the server to the device, you can download it through the GET command of the FTP client function. At this time, an upgrade page can be built in the CPE device. When the step 208 is redirected, the connection request can be directed to the internal page of the CPE device. The process of the WEB server can be omitted in this case.

In summary, the phenomenon of the working process of the present invention on the user PC is very similar to the automatic upgrade function of windows or some application software, but there is an essential difference, on the one hand, the software is upgraded, and the process is based on the operating system. At the same time, the results are directly reflected on the same system. The present invention is a hardware upgrade. The hardware device and the user PC are no longer on the same platform. The key point is how to prevent the hardware detection result from passing through the additional software on the PC. Output to the user display.

The invention provides a brand new design by combining various simple and easy to implement processing technologies. Backup strategy. On the one hand, the upgrade system can be built at a very low cost, which is different from the remote upgrade using the network management system. Under this upgrade strategy, the user's upgrade must be carried out in a dispersed time, and there is no need to consider the server burden; On the other hand, the upgrade operation is completely completed by the user himself, which can greatly reduce the maintenance cost, and can also well avoid the equipment problem or the upgrade failure caused by the user's misoperation.

The above is only the embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. All modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Industrial Applicability In order to improve equipment upgrade efficiency and reduce equipment maintenance costs, embodiments of the present invention provide network equipment upgrades for users by using network equipment, and provide a new equipment upgrade strategy by combining various simple and easy-to-implement processing technologies. The upgraded network device can be any terminal or routing device that can provide Internet access services to users, but mainly for network access terminals that are widely sold by ordinary home users. The main functions of the embodiment of the present invention are integrated by the network device itself, and do not depend on any network management platform. On the one hand, the upgrade system can be built at a very low cost, which is different from the remote upgrade using the network management system. Under this upgrade strategy, the user's upgrade must be carried out in a dispersed time, and there is no need to consider the server burden; On the other hand, the upgrade operation is completely completed by the user himself, which can greatly reduce the maintenance cost, and can also well avoid the equipment problem or the upgrade failure caused by the user's misoperation. The invention provides a convenient, reliable and efficient independent upgrade service for the user, and greatly reduces the upgrade and maintenance cost of the operator and the equipment manufacturer.

Claims

Claim

A system for autonomously upgrading a network device, comprising: a user PC, a service backbone network, an application server, and a network device, wherein the application server and the network device are connected through a service backbone network, and the network device is configured to: check whether the application server has A new version file is available, if yes, detecting a service request initiated by the user PC, and if a web browsing request is detected, processing the message initiated by the source address of the web browsing request, and the destination address of the web browsing protocol is Change to the WEB page address of the upgrade wizard; download the upgrade version file from the application server to the network device according to the user's operation instructions on the upgrade wizard WEB page through the user PC.

2. The system of claim 1, wherein the network device comprises a terminal version detection module, a terminal URL redirection module, and a version upgrade module, wherein the application server comprises a version server and an upgrade wizard server, wherein:

The terminal URL redirection module is configured to: detect a service request initiated by the user PC in an activated state, and if the webpage browsing request is detected, process the message initiated by the source address of the webpage browsing request, and the webpage browsing protocol is processed. Change the destination address to the WEB page address of the upgrade wizard server;

3. The system of claim 2, wherein

The version server is configured to: store version files of products of different models, set separate folders for each model product, and place the latest version file in a folder corresponding to each model product;

4. The system of claim 3, wherein

The network device further includes a terminal remote control module, configured to: provide remote access function, Perform remote FTP or TFTP upgrade. When the operator prohibits the user from modifying the device configuration, the remote access mode is used to upgrade the device. In the upgrade process, the user is allowed to control the remote upgrade process through the WEB page.

The application server further includes a remote upgrade server, and the remote upgrade server is configured to: according to the remote upgrade script embedded in the WEB page of the upgrade wizard, after the user selects the remote upgrade from the WEB page, the remote upgrade service is provided to the network device.

5. The system of claim 2, 3, or 4, wherein

The terminal version detection module is provided with an upgradeable status flag, which is used to indicate whether an upgradeable file is available.

A network device, comprising a terminal version detection module, a terminal URL redirection module, and a version upgrade module, wherein: the terminal version detection module is configured to: check whether a new version file is available on the version server, and if yes, activate the terminal. URL redirection module;

The network device of claim 6, wherein the network device further comprises a terminal remote control module, configured to: provide a remote access function, perform remote FTP or TFTP upgrade, when the operator prohibits the user from modifying the device configuration Upgrade from a remote upgrade server through remote access. During the upgrade process, users are allowed to control the remote upgrade process through the WEB page.

A method for autonomously upgrading a network device, which is applied to a system including a user PC, a service backbone network, an application server, and a network device, where the method includes:

The network device checks whether a new version file is available on the application server, and if yes, detects a service request initiated by the user PC, and if the webpage browsing request is detected, processes the text initiated by the source address of the webpage browsing request, Change the destination address of the web browsing protocol to upgrade The WEB page address of the guide;

9. The method of claim 8, wherein the method further comprises: reading and writing an upgradeable status flag, and if the flag indicates that an upgradeable file is available, initiating redirecting the user browsing page to the upgrade wizard WEB page Otherwise, the version file detection continues to the application server.

The method according to claim 8 or 9, wherein the method further comprises:

When the network device detects or reads the identifier to know that an upgradeable file is available, if the user does not select the upgrade, the network device periodically performs an upgrade reminder.