CN103731301A - Dual backup achieving method of remote network system - Google Patents
Dual backup achieving method of remote network system Download PDFInfo
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- CN103731301A CN103731301A CN201310656033.7A CN201310656033A CN103731301A CN 103731301 A CN103731301 A CN 103731301A CN 201310656033 A CN201310656033 A CN 201310656033A CN 103731301 A CN103731301 A CN 103731301A
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Abstract
The invention discloses a dual backup achieving method of a remote network system. According to the dual backup achieving method of the remote network system, a wireless integrated controller is used and is connected with multiple wireless access point devices. The dual backup achieving method of the remote network system comprises the steps that (a) firmware programs of backups of all the wireless access point devices which are connected with the wireless integrated controller are stored on the wireless integrated controller, and the wireless integrated controller serves as a DHCP server and a TFTP server; (b) each time the wireless access point devices are connected with a power supply, validation of firmware is conducted each time a bootstrap program is started, and then whether the current firmware is damaged or not is judged; (c) if the firmware is damaged, the bootstrap program firstly acquires an address from the wireless integrated controller by using the DHCP and then downloads the firmware programs of the backups of the wireless access point devices from the wireless integrated controller through the TFTP for recovery and automatic reboot. According to the dual backup achieving method of the remote network system, automatic recovery of the firmware can be achieved, manual troubleshooting is not needed and maintenance cost is saved.
Description
Technical field
The present invention relates to a kind of telecommunication network system backup method, relate in particular to a kind of telecommunication network system double copies implementation method.
Background technology
In existing wireless network architecture; the a large amount of WAP (wireless access point) TAP of the general collocation of functions of wireless middle controller AC; at the scene in the process of edition upgrading maintenance and O&M; usually can run into various firmwares and damage problem; and once firmware damages; WAP (wireless access point) TAP cannot normally start and reach the standard grade, and on-the-spot meeting expends sizable manpower and materials investigation fault TAP and repairs.Therefore, be necessary to provide a kind of telecommunication network system double copies implementation method, can be by network after a WAP (wireless access point) TAP firmware abnormal damage in the backup firmware of functions of wireless middle controller AC automatically repair, thereby meet the basic demand of normal service.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of telecommunication network system double copies implementation method, can realize the automatic recovery of firmware, not need manually investigation upgrading, solve the problem that can not normally use after firmware damages, greatly reduce manpower and expend, save maintenance cost.
The present invention solves the problems of the technologies described above the technical scheme adopting to be to provide a kind of telecommunication network system double copies implementation method, described telecommunication network system comprises functions of wireless middle controller, described functions of wireless middle controller and a plurality of wireless access point device are connected to form wireless network centralized control system, in each wireless access point device, store boot, Kernel system and file system, wherein, comprise the steps: a) on functions of wireless middle controller, to store the firmware program of the backup of coupled all wireless access point devices, and using functions of wireless middle controller as Dynamic Host Configuration Protocol server with tftp server, when b) each wireless access point device powers on, boot all can be carried out the verification of firmware after starting, and judges whether current firmware damages, c) if firmware damages, boot is first used DHCP to obtain address from functions of wireless middle controller, and the firmware program of then downloading the backup of this wireless access point device by TFTP from functions of wireless middle controller recovers and autoboot.
Above-mentioned telecommunication network system double copies implementation method, wherein, described step b) judge that the process whether current firmware damage is as follows in: after wireless access point device upgrades successfully at every turn, automatically in a certain precalculated position of firmware, one section of known strings is set, judge and when whether current firmware damages, first read this section of character string, if the character string reading and preset characters string are inconsistent, think that firmware damages, otherwise think and do not damage.
Above-mentioned telecommunication network system double copies implementation method, wherein, each wireless access point device increases CRC check to Kernel system and calculates, check value is kept at the afterbody of Kernel subregion F, when boot starts, can recalculate crc value and compare with the check value of original storage, if compare inconsistently, determining that the Kernel subregion of this wireless access point device damages.
Above-mentioned telecommunication network system double copies implementation method, wherein, preserves the network address of last time while reaching the standard grade, if step c in each wireless access point device) in cannot obtain address by DHCP, the network address while using the last time to reach the standard grade.
Above-mentioned telecommunication network system double copies implementation method, wherein, has set in advance default ip address in each wireless access point device, if step c) in cannot obtain address by DHCP, use default ip address.
Above-mentioned telecommunication network system double copies implementation method, wherein, the boot in each wireless access point device is in DHCP reciprocal process, and the DHCP message by with Option43 field, obtains IP address from functions of wireless middle controller.
Above-mentioned telecommunication network system double copies implementation method, wherein, if wireless access point device is downloaded the firmware program failure of backup step c), boot in described wireless access point device automatically resets and repeatedly by TFTP, from functions of wireless middle controller, downloads, until successfully obtain the firmware program of backup.
The present invention contrasts prior art following beneficial effect: telecommunication network system double copies implementation method provided by the invention, firmware is backed up on functions of wireless middle controller, the firmware of wireless access point device carries out firmware downloads upgrading in boot after damaging, thereby realize the automatic recovery of firmware, do not need manually investigation upgrading, solve the problem that can not normally use after firmware damages, greatly reduced manpower and expend, saved maintenance cost.
Accompanying drawing explanation
Fig. 1 is that telecommunication network system double copies of the present invention are realized main flow schematic diagram;
Fig. 2 is the detailed realization flow schematic diagrames of telecommunication network system double copies of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is that telecommunication network system double copies of the present invention are realized main flow schematic diagram; Fig. 2 is the detailed realization flow schematic diagrames of telecommunication network system double copies of the present invention.
Refer to Fig. 1 and Fig. 2, telecommunication network system double copies implementation method provided by the invention, described telecommunication network system comprises functions of wireless middle controller, described functions of wireless middle controller and a plurality of wireless access point device are connected to form wireless network centralized control system, in each wireless access point device, store boot, Kernel system and file system, wherein, comprise the steps:
Step S1: on functions of wireless middle controller, store the firmware program of the backup of coupled all wireless access point devices, and using functions of wireless middle controller as Dynamic Host Configuration Protocol server with tftp server.
Step S2: when each wireless access point device powers on, boot all can be carried out the verification of firmware after starting, and judges whether current firmware damages.Concrete deterministic process is as follows: after wireless access point device upgrades successfully at every turn, automatically in a certain precalculated position of firmware, one section of known strings is set, judge and when whether current firmware damages, first read this section of character string, if the character string reading and preset characters string are inconsistent, think that firmware damages, otherwise think and do not damage.In addition, each wireless access point device increases CRC check to Kernel system and calculates, check value is kept at the afterbody of Kernel subregion F, when boot starts, can recalculate crc value and compare with the check value of original storage, if compare inconsistently, determining that the Kernel subregion of this wireless access point device damages.
Step S3: if firmware damages, boot is first used DHCP to obtain address from functions of wireless middle controller, the firmware program of then downloading the backup of this wireless access point device by TFTP from functions of wireless middle controller recovers and autoboot.Boot in each wireless access point device, in DHCP reciprocal process, can, by the DHCP message with Option43 field, be obtained IP address from functions of wireless middle controller.In each wireless access point device, preserve the network address of last time while reaching the standard grade, if cannot obtain address by DHCP, the network address while using the last time to reach the standard grade.In addition, in each wireless access point device, set in advance default ip address, if cannot obtain address by DHCP, also can use default ip address, default value is 192.168.0.35, and this default value can manually be changed in boot.
In addition, if wireless access point device is downloaded the firmware program failure of backup in step S3, in order to ensure TAP, can automatically repair, boot in described wireless access point device automatically resets and repeatedly by TFTP, from functions of wireless middle controller, downloads, until successfully obtain the firmware program of backup.
When the firmware of TAP damages, boot can normally start conventionally, only because firmware damages, causes the firmware cannot be by the verification of boot, can not normal load.Due in boot, possessed all conditions that connects functions of wireless middle controller AC and firmware updating, as: network service, FLASH is erasable etc.Therefore,, as long as boot is not damaged, functions of wireless middle controller AC can normally provide the TFTP of firmware to download, and just can realize the automatic recovery of firmware.
In sum, telecommunication network system double copies implementation method provided by the invention, firmware is backed up on functions of wireless middle controller, each WAP (wireless access point) TAP powers on, boot all can be carried out the verification of firmware after starting, and judges whether current firmware damages, if do not damaged, normal startup reached the standard grade.If damaged, boot is first used DHCP to obtain address, obtains less than the network configuration parameters that re-uses preservation, by TFTP, from functions of wireless middle controller AC, downloads the firmware of backup.If success, upgrading is restarted again, if obtain unsuccessfully, directly restarts, thereby realizes the automatic recovery of firmware, does not need manually investigation upgrading, has solved the problem that can not normally use after firmware damages, greatly reduces manpower and expends, and saves maintenance cost.
Although the present invention discloses as above with preferred embodiment; so it is not in order to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little modification and perfect, so protection scope of the present invention is worked as with being as the criterion that claims were defined.
Claims (7)
1. a telecommunication network system double copies implementation method, described telecommunication network system comprises functions of wireless middle controller, described functions of wireless middle controller and a plurality of wireless access point device are connected to form wireless network centralized control system, in each wireless access point device, store boot, Kernel system and file system, it is characterized in that, comprise the steps:
A) on functions of wireless middle controller, store the firmware program of the backup of coupled all wireless access point devices, and using functions of wireless middle controller as Dynamic Host Configuration Protocol server with tftp server;
When b) each wireless access point device powers on, boot all can be carried out the verification of firmware after starting, and judges whether current firmware damages;
C) if firmware damages, boot is first used DHCP to obtain address from functions of wireless middle controller, and the firmware program of then downloading the backup of this wireless access point device by TFTP from functions of wireless middle controller recovers and autoboot.
2. telecommunication network system double copies implementation method as claimed in claim 1, is characterized in that described step b) in judge that the process whether current firmware damage is as follows:
After wireless access point device upgrades successfully at every turn, automatically in a certain precalculated position of firmware, one section of known strings is set, judge and when whether current firmware damages, first read this section of character string, if the character string reading and preset characters string are inconsistent, think that firmware damages, otherwise think and do not damage.
3. telecommunication network system double copies implementation method as claimed in claim 1, it is characterized in that, each wireless access point device increases CRC check to Kernel system and calculates, check value is kept at the afterbody of Kernel subregion F, when boot starts, can recalculate crc value and compare with the check value of original storage, if compare inconsistently, determining that the Kernel subregion of this wireless access point device damages.
4. telecommunication network system double copies implementation method as claimed in claim 1, it is characterized in that, in each wireless access point device, preserve the network address of last time while reaching the standard grade, if step c) in cannot obtain address by DHCP, the network address while using the last time to reach the standard grade.
5. telecommunication network system double copies implementation method as claimed in claim 1, is characterized in that, has set in advance default ip address, if step c in each wireless access point device) in cannot obtain address by DHCP, use default ip address.
6. telecommunication network system double copies implementation method as claimed in claim 1, it is characterized in that, boot in each wireless access point device is in DHCP reciprocal process, and the DHCP message by with Option43 field, obtains IP address from functions of wireless middle controller.
7. the telecommunication network system double copies implementation method as described in claim 1～6 any one, it is characterized in that, if wireless access point device is downloaded the firmware program failure of backup step c), boot in described wireless access point device automatically resets and repeatedly by TFTP, from functions of wireless middle controller, downloads, until successfully obtain the firmware program of backup.
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| CN201310656033.7A CN103731301A (en) | 2013-12-06 | 2013-12-06 | Dual backup achieving method of remote network system |
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| CN103987064A (en) * | 2014-05-09 | 2014-08-13 | 杭州华三通信技术有限公司 | Access point (AP) upgrading method and device |
| CN106199395A (en) * | 2016-07-20 | 2016-12-07 | 四川泰瑞创通讯技术股份有限公司 | The method of testing that detection optical module firmware is lost |
| CN109218070A (en) * | 2018-07-11 | 2019-01-15 | 新华三技术有限公司 | System firmware restoration methods and device |
| CN113297010A (en) * | 2021-05-26 | 2021-08-24 | 飞腾信息技术有限公司 | Firmware recovery method, device and system based on system on chip and storage medium |
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| CN103987064A (en) * | 2014-05-09 | 2014-08-13 | 杭州华三通信技术有限公司 | Access point (AP) upgrading method and device |
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| CN113297010A (en) * | 2021-05-26 | 2021-08-24 | 飞腾信息技术有限公司 | Firmware recovery method, device and system based on system on chip and storage medium |
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