CN105740032A - Network device system upgrading method and device - Google Patents

Abstract

The invention relates to a method and device for upgrading a network equipment system. The method includes: S11, obtaining a data segment of a preset length and directly writing it into a storage device, and obtaining the MD5 value of the data segment of the preset length and the MD5 value of the new version software; S12, continuing to obtain the data segment and directly writing it into the storage device device, update the MD5 value at the same time; the length of the data segment is the preset length; S13, repeat the step S12 until the new version software is written into the storage device; S14, compare the step S13 Whether the last updated MD5 value is consistent with the MD5 value of the new version software in step S11; if so, the system upgrade of the network device is successful. The device is used to realize the network equipment system upgrading method provided by the present invention. The invention can continue to upgrade the system when the memory of the network equipment is insufficient.

Description

A network equipment system upgrade method and device

technical field

The invention relates to the technical field of communication networks, in particular to a method and device for upgrading a network equipment system.

Background technique

A network device is a commonly used physical entity in a communication network. In order to ensure the normal operation of the network device, an operating system or application software is usually installed in the network device. When the communication network is upgraded, it is also necessary to upgrade the operating system or application software of the network equipment. Commonly used network devices have a system upgrade function, so that a new version of the operating system or application software can be used to replace the old version of the software.

With the increase of communication requirements, the pressure on the entire communication network is relatively high. At this time, in order to ensure the normal operation of the communication network, network devices need to consume more memory. In practical applications, when the system is upgraded, it is necessary to ensure that the communication network or a certain network device is working normally. However, the system consumes a lot of memory during the upgrade, and the upgrade may fail due to the inability to apply for memory.

Contents of the invention

Aiming at the defects in the prior art, the present invention provides a method and device for upgrading the network equipment system, which are used to solve the problem in the prior art that the system upgrade fails due to the high memory consumption of the network equipment.

In a first aspect, the present invention provides a method for upgrading a network equipment system, the method comprising:

S11, obtaining the data segment of the preset length and directly writing it into the storage device, and obtaining the MD5 value of the data segment of the preset length and the MD5 value of the new version of the software;

S12. Continue to obtain the data segment and directly write it into the storage device, and update the MD5 value at the same time; the length of the data segment is the preset length;

S13. Repeat the step S12 until the new version of the software is written into the storage device;

S14, comparing whether the last updated MD5 value in step S13 is consistent with the MD5 value of the new version software in step S11; if so, the system upgrade of the network device is successful.

Optionally, when the last updated MD5 value is inconsistent with the MD5 value of the new version software in step S11, after said step S14 includes:

All data segments stored in the storage device are deleted.

Optionally, the method is implemented by using the Trivial File Transfer Protocol TFTP protocol or the File Transfer Protocol FTP.

Optionally, before the step S11, the method further includes:

Use the MD5 initialization algorithm to generate the MD5 value of the new version of the software.

Optionally, updating the MD5 value in S12 includes:

Obtain all data segments including the data segment obtained this time;

The MD5 value is generated by using the MD5 update algorithm on the basis of all the data segments.

In the second aspect, an embodiment of the present invention also provides a device for upgrading a network device system, the device comprising:

The first data acquisition module is used to obtain the data segment of the preset length and directly write it into the storage device, and obtain the MD5 value of the data segment of the preset length and the MD5 value of the new version of the software;

The second data acquisition module is configured to perform the following steps:

S12. Continue to obtain the data segment and directly write it into the storage device, and update the MD5 value at the same time; the length of the data segment is the preset length;

S13. Repeat the step S12 until the new version of the software is written into the storage device;

The comparison module is used to compare whether the last updated MD5 value in the second data acquisition module is consistent with the MD5 value of the new version software in the first data acquisition module; if so, the system upgrade of the network device is successful.

Optionally, when the last updated MD5 value in the second data acquisition module is inconsistent with the MD5 value of the new version software in the first data acquisition module, the device further includes:

A data deletion module, configured to delete all data segments stored in the storage device.

Optionally, the device is implemented by using a simple file transfer protocol TFTP protocol or a file transfer protocol FTP.

Optionally, the device further includes an initialization module, configured to use an MD5 initialization algorithm to generate an MD5 value of the new version of the software.

Optionally, the second data acquisition module adopts the following steps to update the MD5 value, including:

Obtain all data segments including the data segment obtained this time;

The MD5 value is generated by using the MD5 update algorithm on the basis of all the data segments.

It can be seen from the above technical solution that the present invention divides the new version software into multiple data segments and directly writes it into the storage device without applying for the memory of the network device in the middle, which can avoid the situation that the system upgrade fails due to excessive memory consumption of the network device . Moreover, in the embodiment of the present invention, the MD5 value is also used to verify the new version of the software stored in the storage device, so as to determine the correctness of the system software in the transmission process and further ensure the success rate of the system upgrade.

Description of drawings

The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the invention in any way. In the accompanying drawings:

Fig. 1 is a flow chart of a method for upgrading a network device system provided by an embodiment of the present invention;

FIG. 2 is a block diagram of an apparatus for upgrading a network equipment system provided by an embodiment of the present invention;

Fig. 3 is a block diagram of an apparatus for upgrading a network equipment system according to an embodiment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In a first aspect, an embodiment of the present invention provides a method for upgrading a network device system, as shown in FIG. 1 , including:

S11, obtaining the data segment of the preset length and directly writing it into the storage device, and obtaining the MD5 value of the data segment of the preset length and the MD5 value of the new version of the software;

S12. Continue to obtain the data segment and directly write it into the storage device, and update the MD5 value at the same time; the length of the data segment is the preset length;

S13. Repeat the step S12 until the new version of the software is written into the storage device;

S14, comparing whether the last updated MD5 value in step S13 is consistent with the MD5 value of the new version software in step S11; if so, the system upgrade of the network device is successful.

It should be noted that the preset length in this embodiment of the present invention refers to the preset number of bytes. For example, the preset length may be 256 bytes.

It should be noted that the data segment in the embodiment of the present invention refers to data with a preset length, and the data comes from a new version of software, that is, a segment of valid data.

It should be noted that the new version software in this embodiment of the present invention refers to the software prepared for the network device that can replace the operating system software of the current version and work normally.

It should be noted that the MD5 value in the embodiment of the present invention is generated by using the MD5 message digest algorithm commonly used in the prior art. In order to reflect the different functions of each MD5, the MD5 initialization algorithm is used in the embodiment of the present invention to generate the MD5 value of the new version software. In the process of updating the MD5 value, an MD5 update algorithm is used to generate an updated MD5 value. Since the message digest algorithm MD5 is a prior art, the present invention will not repeat it here.

The method for upgrading the network device system provided by the embodiment of the present invention will be further described below in conjunction with the embodiments.

Firstly, the steps of S11, obtaining the data segment of the preset length and directly writing it into the storage device, and obtaining the MD5 value of the data segment of the preset length and the MD5 value of the new version software are introduced.

In actual application, the new version of software includes a software information header and an application software program, and some attribute information of the software is written in the information header. That is, the MD5 value of the application software in the new version software is in the attribute information. Therefore, the MD5 value of the new version software comes from the attribute information.

Preferably, the above MD5 value is generated using an MD5 initialization algorithm. For example, the MD5 initialization algorithm may be an MD5_Init function. Of course, those skilled in the art may also use other functions capable of generating the MD5 value to generate the MD5 value, which is not limited in the present invention.

Next, introduce S12, continue to obtain the data segment and directly write it into the storage device, and update the MD5 value at the same time; the length of the data segment is the step of the preset length.

Continue to obtain the data segment from the new version of the software. At this time, the data segment needs to be directly saved to the storage device. Doing so can avoid applying for memory space to the network device, and will not affect the normal work of the network device.

After the data segment is obtained, the MD5 value needs to be updated at this time to determine whether the obtained data segment is correct. Among them, updating the MD5 value includes:

S121. Obtain all data segments including the data segment obtained this time;

S122. Generate an MD5 value using an MD5 update algorithm on the basis of all the data segments.

It should be noted that the MD5 value is generated by using the MD5 update algorithm on the basis of all data segments related to the new version of the software in the storage device during the update.

In the embodiment of the present invention, the MD5 update algorithm may be an MD5_Update function. Of course, those skilled in the art may also use other functions capable of updating the MD5 value to generate the MD5 value, which is not limited in the present invention.

Again, S13 is introduced, the step of repeating the step S12 until the new version software is written into the storage device.

The main content of this step is the same as that of step 2, and will not be repeated here.

Finally, introduce S14, compare whether the last updated MD5 value in the step S13 is consistent with the MD5 value of the new version software in the step S11; if so, the system upgrade of the network device is successful.

After the new version of the software is saved to the storage device, if the data segment is missing, the new version of the software cannot be used. So it still needs to be verified. At this time, compare the last updated MD5 value in step S13 with the MD5 value of the new version software in step S11. If they are consistent, it means that the acquired new version software is correct and can be used. That is, the system upgrade function of the network device.

In practical applications, the last updated MD5 value can also be realized by using the MD5_Final function.

As shown in Figure 2, the embodiment of the present invention also provides a method for upgrading the network equipment system, steps S21, S22, S23 and S24 in Figure 2 are the same as S11, S12, S13 and S14 in Figure 1, and step S241 is the same as Step S14 is the same and will not be repeated here. Fig. 2 includes: S242, when the last updated MD5 value in step S23 is inconsistent with the MD5 value of the new version software in step S21, delete all data segments stored in the storage device.

In the embodiment of the present invention, by deleting the data segment in the storage device, the space of the storage device is not occupied, and the impact on the storage device is reduced.

In the second aspect, the embodiment of the present invention also provides an apparatus for upgrading a network equipment system. As shown in FIG. 3 , the apparatus includes:

The first data obtaining module M11 is used to obtain the data segment of the preset length and directly write it into the storage device, and obtain the MD5 value of the data segment of the preset length and the MD5 value of the new version of the software;

The second data acquisition module M12 is configured to perform the following steps:

S12. Continue to obtain the data segment and directly write it into the storage device, and update the MD5 value at the same time; the length of the data segment is the preset length;

S13. Repeat the step S12 until the new version of the software is written into the storage device;

The comparison module M13 is used to compare whether the last updated MD5 value in the second data acquisition module is consistent with the MD5 value of the new version software in the first data acquisition module; if so, the system upgrade of the network device is successful.

Optionally, when the last updated MD5 value in the second data acquisition module is inconsistent with the MD5 value of the new version software in the first data acquisition module, the device further includes:

A data deletion module, configured to delete all data segments stored in the storage device.

Optionally, the device is implemented by using a simple file transfer protocol TFTP protocol or a file transfer protocol FTP.

Optionally, the device further includes an initialization module, configured to use an MD5 initialization algorithm to generate an MD5 value of the new version of the software.

Optionally, the second data acquisition module M12 adopts the following steps to update the MD5 value, including:

Obtain all data segments including the data segment obtained this time;

The MD5 value is generated by using the MD5 update algorithm on the basis of all the data segments.

It can be seen from the above that the network equipment system upgrade device provided by the embodiment of the present invention is implemented based on the network equipment system upgrade method described above, so it can solve the same technical problem and achieve the same technical effect. A repeat.

To sum up, the network device system upgrade method and device provided by the embodiments of the present invention can directly write the new version software into the storage device by dividing the new version software into multiple data segments, and there is no need to apply for the memory of the network device in the middle, which can avoid network device memory The system upgrade fails due to excessive consumption. Moreover, in the embodiment of the present invention, the MD5 value is also used to compare the operating system software stored in the storage device with the new version software, so as to determine the correctness of the system software transmission process and further ensure the success rate of the system upgrade.

It should be noted that among the various components of the device disclosed in this embodiment, the components are logically divided according to the functions to be realized, but the present invention is not limited thereto, and each component can be divided as required Redivision or combination, for example, some components may be combined into a single component, or some components may be further broken down into more subcomponents.

The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all functions of some or all components in the system according to the embodiments of the present invention. The present invention can also be implemented as an apparatus or an apparatus program (for example, a computer program and a computer program product) for performing a part or all of the methods described herein. Such a program for realizing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet site, or provided on a carrier signal, or provided in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names.

The above embodiments are only suitable for illustrating the present invention, rather than limiting the present invention. Those of ordinary skill in the relevant technical fields can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all Equivalent technical solutions also belong to the category of the present invention, and the scope of patent protection of the present invention should be defined by the claims.

Claims (10)

1. a network equipment system upgrade method, it is characterised in that described method includes:

S11, the data segment obtaining preset length write direct storage device, and obtain the MD5 value of the data segment of this preset length and the MD5 value of new version software；

S12, continuation obtain data segment storage device of writing direct, and the MD5 value of a upper data segment are updated simultaneously；The length of this data segment is described preset length；

S13, repeating said steps S12 are until described new version software is written to described storage device；

Whether S14, to contrast in described step S13 the last MD5 value updated consistent with the MD5 value of new version software in step S11；If the then system upgrade success of the described network equipment.

2. network equipment system upgrade method according to claim 1, it is characterised in that when the MD5 value of new version software is inconsistent in the last MD5 value updated and step S11, include after described step S14:

All data segments of storage in described storage device are deleted.

3. network equipment system upgrade method according to claim 2, it is characterised in that described method adopts TFTP TFTP agreement or file transfer protocol (FTP) FTP to realize.

4. network equipment system upgrade method according to claim 1, it is characterised in that before described step S11, described method also includes:

MD5 initialization algorithm is utilized to generate the MD5 value of new version software.

5. network equipment system upgrade method according to claim 1, it is characterised in that be updated including to MD5 value in described S12:

Obtain all data segments including this acquired data segment；

The basis of described all data segments utilize MD5 update algorithm generate MD5 value.

6. a network equipment system update device, it is characterised in that described device includes:

First data acquisition module, the data segment for obtaining preset length writes direct storage device, and obtains the MD5 value of the data segment of this preset length and the MD5 value of new version software；

Second data acquisition module, is used for performing following steps:

S12, continuation obtain data segment storage device of writing direct, and MD5 value are updated simultaneously；The length of this data segment is described preset length；

S13, repeating said steps S12 are until described new version software is written to described storage device；

Whether contrast module is consistent with the MD5 value of new version software in the first data acquisition module for contrasting the last MD5 value updated in described second data acquisition module；If the then system upgrade success of the described network equipment.

7. network equipment system update device according to claim 6, it is characterised in that when the MD5 value updated last in described second data acquisition module is with when the MD5 value of new version software is inconsistent in the first data acquisition module, described device also includes:

Data deletion module, for deleting all data segments of storage in described storage device.

8. network equipment system update device according to claim 7, it is characterised in that described device adopts TFTP TFTP agreement or file transfer protocol (FTP) FTP to realize.

9. network equipment system update device according to claim 6, it is characterised in that described device also includes initialization module, for utilizing MD5 initialization algorithm to generate the MD5 value of new version software.

10. network equipment system update device according to claim 6, it is characterised in that

Described second data acquisition module adopts following steps to realize MD5 value is updated, including:

Obtain all data segments including this acquired data segment；

The basis of described all data segments utilize MD5 update algorithm generate MD5 value.