(51) Int Cl.: H04L 12/24 ( ) H04L 29/14 ( ) G06F 11/14 ( )

Transkript

1 (19) (11) EP B1 (12) EUROPEAN PATENT SPECIFICATION (4) Date of publication and mention of the grant of the patent: Bulletin 08/32 (21) Application number: (22) Date of filing: (1) Int Cl.: H04L 12/24 (06.01) H04L 29/14 (06.01) G06F 11/14 (06.01) (86) International application number: PCT/CN0/0009 (87) International publication number: WO 0/0762 ( Gazette 0/33) (4) A METHOD FOR UPGRADING SOFTWARE OF COMMUNICATION EQUIPMENT VERFAHREN ZUM AUFRÜSTEN DES SOFTWARES EINER KOMMUNIKATIONSEINRICHTUNG PROCEDE DE MISE A JOUR DE SOFTWARE DU DISPOSITIF DE COMMUNICATION (84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR () Priority: CN (43) Date of publication of application: Bulletin 06/42 (73) Proprietor: Huawei Technologies Co., Ltd. Longgang District, Shenzhen, Guangdong (CN) (72) Inventors: FAN, Jinfei, Huawei Administration Building Shenzhen, Guangdong (CN) SHE, Jiangfa, Huawei Administration Building Shenzhen, Guangdong (CN) LUO, Bing, Huawei Administration Building Shenzhen, Guangdong (CN) YE, Weichuan, Huawei Administration Building Shenzhen, Guangdong (CN) (74) Representative: Thun, Clemens Mitscherlich & Partner Sonnenstrasse München (DE) (6) References cited: EP-A EP-A CN-A CN-A US-A CHEU X. ET AL: An automatically upgrading method orienting to C/S application system JOURNAL OF ZHENGZHOU INSTITUTE OF LIGHT INDUSTRY (NATURAL SCIENCE) vol. 16, no. 3, September 01, pages - 19, XP EP B1 Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. Notice of opposition shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). Printed by Jouve, 7001 PARIS (FR)

2 1 EP B1 2 Description Field of the Technology [0001] The present invention relates to communication field, more particularly to a method for updating software of communication equipment. Background of the Invention [0002] In the communication field, as new technologies and new services continuously emerge, the software of the communication equipment needs to be updated frequently, so as to maintain and optimize the communication network and provide more extensive and better communication services. Software update involves almost all communication, such as exchangers, routers, Integrated Access Devices (IADs) and so on. [0003] In all the existing software update procedures, the software to be updated is stored in an independent server, and then a data transmission connection is established between this server and the communication equipment to be updated, so that the software stored in the server can be transmitted to the communication equipment. During the update procedure, the corresponding files of the software stored in the server are directly transmitted to the communication equipment, and then the communication equipment loads the software to replace the old files with the new files, and the equipment is updated accordingly. [0004] However, in the existing methods for updating equipment, the communication equipment does not back up the old configuration data which includes the user data, therefore during the software update procedure, if the communication equipment is powered off or the updated files error happens and so on, the old configuration data may be lost, which can bring great loss to the operators. In other words, the risk of losing data during the equipment update procedure exists in the prior art, which affects the security of the equipment update. [000] In addition, in the existing methods for updating equipment, the software update procedure is not monitored. If an error occurs during the update procedure, e.g., the communication equipment is powered off or the updated files error happens, the old service ability of equipment may not be inherited after the update procedure is finished, which may lead to unsuccessful equipment update and harm the security of the equipment update. [0006] Moreover, in the existing communication equipment, the old software version is usually not saved during the update procedure, so the old software version is not available to the equipment anymore in the case of unsuccessful update. Therefore, after the unsuccessful update, the communication equipment may change into failure or fault and cannot function normally, which greatly affects the security of the equipment update. [0007] US patent application 03/22986 A1 published on December 4th, 03, discloses a method of installing a program or renewing a file. According to this application, a first program or file stored on a first memory area is copied to a second memory area. Position-information memory area is updated with position information indicating a location on the second memory area where the first program or file is copied or stored. Then, a second program or file is written into the first memory area, and the position-information memory area is updated again with position information indicating a location on the first memory where the second program or file is written. Summary of the Invention [0008] In view of the above, the present invention is to provide a method for updating software of communication equipment that can implement a secure update, so as to avoid data loss from happening during the update procedure and make sure that the update is successful. [0009] The present invention discloses a method for updating communication equipment in a communication system through a server, which stores updated files used for updating the communication equipment. The method at least includes: backing up configuration data in the communication equipment to the server; downloading the updated files to the communication equipment from the server, and loading the updated files to the communication equipment to implement the communication equipment update; modifying the format of the configuration data when the configuration data can not be successfully recovered with respect to the updated files; recovering the configuration data backed up in the server to the communication equipment. [00] Preferably, the step of backing up the configuration data in the communication equipment to the server further includes: the server monitoring the backup procedure of the configuration data and judging whether the configuration data are successfully backed up, if yes, executing the step of downloading the updated files to the communication equipment from the server, and loading the updated files to the communication equipment to implement the communication update; otherwise, instructing the communication equipment to execute the backup operation for the configuration data again. [0011] Hereby, the step of the server judging whether the configuration data are successfully backed up includes: judging whether a backup failure message is received from the communication equipment or judging whether the backup operation exceeds a scheduled time. Moreover, before instructing the communication equipment to execute the backup operation for the configuration data again, the method further includes: notifying a user that the current configuration data backup has failed and asking the user whether to back up the data over 2

3 3 EP B1 4 again; after receiving the user s instruction to back up the data over again, executing the step of instructing the communication equipment to execute the backup operation again; otherwise, ending the current process. [0012] When the communication equipment is an Integrated Access Device (IAD), and the server is a File Transfer Protocol/Trivial File Transfer Protocol (FTP/ TFTP) server, the step of backing up the configuration data in the communication equipment to the server further includes: an IAD Management System (IADMS) sending a Simple Network Management Protocol (SNMP) backup configuration data command to the IAD; and the step of backing up the configuration data in the communication equipment to the server includes: after receiving the SNMP backup configuration data command, the IAD transmitting the configuration data files to the specified FTP/TFTP server via the FTP/TFTP protocol. [0013] The configuration data include one or more than one type among user data, port data, protocol parameter data and default parameter data for guaranteeing the normal operation of the equipment. [0014] Preferably, the step of downloading the updated files to the communication equipment from the server and loading the updated files to the communication equipment to implement the communication update further includes: the server monitoring the update procedure of the communication equipment and judging whether the update is successful, if yes, executing the step of recovering the configuration data backed up in the server to the communication equipment; otherwise, instructing the communication equipment to execute the update operation over again. [00] Hereby, the server judging whether the update is successful includes: judging whether an update failure message is received from the communication equipment or judging whether the update operation exceeds the scheduled time. Moreover, before instructing the communication equipment to execute the update operation again, the method further includes: notifying the user that the current update has failed and asking the user whether to update the equipment over again or not; after receiving the user s instruction to update the equipment over again, executing the step of instructing the communication equipment to execute the update operation again; otherwise, ending the current process. [0016] The method may further include a step of storing an old software version in the communication equipment before executing the update operation, and a step of instructing the communication equipment to recover the current software to the old version before instructing the communication equipment to execute the update operation over again [0017] When the communication equipment is the IAD, and the server is the FTP/TFTP server, the step of downloading the updated files to the communication equipment from the server and loading the updated files to the communication equipment to implement the communication update further includes: the IADMS sending an SNMP update command which includes the address information of the FTP/ TFTP server and the name information of the updated files; and the step of downloading the updated files to the communication equipment from the server and loading the updated files to the communication equipment includes: after receiving the SNMP update command, the IAD downloading the updated files corresponding to the updated files name from the specified FTP/TFTP server via the FTP/TFTP protocol, and then loading the updated files. [0018] Preferably, the step of recovering the configuration data backed up in the server to the communication equipment further includes: the server monitoring the recovery procedure of the configuration data, and judging whether the configuration data are successfully recovered, if yes, ending the current process; otherwise, instructing the communication equipment to execute the recovery operation for the configuration data over again. [0019] Hereby, the server judging whether the configuration data are successfully recovered includes: judging whether a recovery failure message is received from the communication equipment or judging whether the recovery operation exceeds the scheduled time. Moreover, before instructing the communication equipment to execute the recovery operation for the configuration data over again, the method further includes: notifying the user that the current configuration data recovery has failed and asking the user whether to recover the configuration data over again; after receiving the user s instruction to recover the configuration data over again, executing the step of instructing the communication equipment to execute the recovery operation over again; otherwise, ending the current process. [00] When the communication equipment is the IAD, and the server is the FTP/TFTP server, the step of recovering the configuration data backed up in the server to the communication equipment further includes: the IADMS sending an SNMP recovery configuration data command which includes the address information of the FTP/TFTP server and the name information of the configuration data files; the step of recovering the configuration data backed up in the server to the communication equipment includes: 3

4 EP B1 6 after receiving the SNMP recovery configuration data command, the IAD downloading the configuration data files corresponding to the configuration data files name from the specified FTP/ TFTP server via the FTP/TFTP protocol, and then loading the configuration data files. [0021] It can be seen from the above-mentioned technical schemes that, besides the equipment update by directly downloading the updated files and loading the updated files according to the prior art, the present invention further includes the process of backing up the configuration data before the update and recovering the configuration data after the update, so that data loss will not happen when the communication equipment power off happens or the update is unsuccessful and the old software version needs be maintained. So the present invention can avoid great loss for the operators due to the data loss and the security of the equipment update is improved accordingly. [0022] During the procedures of backing up the configuration data, updating the software and recovering the configuration data, the communication equipment operation is monitored all the time to judge whether the operation is successful. If the operation is unsuccessful, the corresponding operation will be executed again automatically, so that the configuration data can be backed up, the software can be updated and the configuration data can be recovered again even if the communication equipment is powered off or the update is unsuccessful. Therefore, the present invention can guarantee the update is successful anyway and thus improve the security of the equipment update. [0023] Moreover, in the present invention, the old software version can be stored before the update, so that the old software version is available once the update is unsuccessful. In the prior art, once the update is unsuccessful, new software cannot be run and the old software is not available, so the communication equipment changes into failure or fault, while the present invention can prevent such situation from happening and thus further improve the security of the equipment update. Brief Description of the Drawings [0024] Figure 1 is a flowchart illustrating the equipment update method according to one embodiment of the present invention. Detailed Description of the Invention [002] The present invention will be further described in detail hereinafter with reference to the accompanying drawings and specific embodiments. [0026] The communication equipment can be the equipment utilized in any fixed or mobile communication networks, such as exchangers, routers, Integrated Access Devices (IADs) and so on. Hereby the IAD can be the video telephone, the Media Gateway Control Protocol (MGCP) IAD, the Internet Protocol (IP) telephone terminal or others. The following embodiment will be illustrated taking the IAD for example, but those skilled in the art should understand that all the above illustrations can be applied in the other communication equipment without any obstacles. [0027] In the prior art, the data can be easily lost and the software update is not guaranteed to be successful. In order to solve such problems, processes of backing up the configuration data, recovering the configuration data and monitoring the whole software update procedure are added to the present invention. Figure 1 is a flowchart illustrating the whole equipment update method after adding the above-mentioned processes. [0028] As shown in figure 1, in step 0, the configuration data are backed up at first. Specifically, firstly the FTP/TFTP server information is configured to the IAD through the IADMS, and then the IADMS sends an SNMP backup configuration data command to IAD. After receiving this command, the IAD transmits the configuration data to the specified FTP/TFTP server via the FTP/TFTP protocol. [0029] The configuration data hereby can be one or more than one type among user data, port data, protocol parameter data and default parameter data for guaranteeing the normal operation of the equipment. Of course, those skilled in the art should understand that the configuration data can also be other types of data besides the above mentioned ones. [00] In step 1, the procedure of backing up the configuration data is monitored. While backing up the configuration data, the IAD will report the current backup progress to the IADMS through the progress TRAP, so that the IADMS can acquire the backup status of the IAD through the progress TRAP received from the IAD, thus the monitor function is implemented. [0031] In step 1, the IADMS judges whether the configuration data are successfully backed up, if yes, executing the next step 1; otherwise, returning to the step 0, which is to instruct the IAD to back up the configuration data over again, and the IAD will back up the configuration data over again after receiving this instruction. [0032] The process of judging whether the configuration data are successfully backed up is to judge whether a backup failure TRAP is received or whether the backup procedure exceeds the scheduled time. If the IADMS receives the backup failure TRAP from the IAD or detects that the operating time of the backup procedure of the IAD exceeds the scheduled time, the IADMS confirms the backup has failed; otherwise, the backup is successful. [0033] Moreover, after confirming the backup has failed, IADMS can notify a user that the current backup fails and that the user can choose whether to back up the data over again. After receiving the user s indication of backing up the data over again, the IADMS will instruct the IAD to back up the configuration data over again. If 4

5 7 EP B the user chooses not to back up the data anymore, the current process will be ended. [0034] In step 1, the equipment software is updated. Firstly, the IADMS sends an SNMP update command to the IAD, and this command comprises updated FTP/ TFTP server address, updated files name and other information. After receiving this command, the IAD analyzes it and downloads the updated files from the FTP/TFTP server via the FTP/TFTP protocol, according to the FTP/ TFTP server address, the updated files name and other information comprised in this command. After downloading all the updated files, the IAD loads the updated files to implement the equipment software update. [003] In addition, as to some communication equipment, the loaded software is not effective until resetting the equipment. In this case, the IADMS needs to send an SNMP reset command to the IAD and request the IAD to reset. The IAD resets itself after receiving this SNMP reset command, so that the current loaded new software version can be effective. Of course, as to those communication equipment that can make the loaded software effective without resetting themselves, the above-illustrated reset process can be removed. [0036] In step 1, the update procedure of the equipment software is monitored. While downloading and loading the updated files, the IAD will report the current update progress to the IADMS through the progress TRAP, so that IADMS can acquire the update status of the IAD through the progress TRAP received from the IAD, thus the monitor function is implemented. [0037] In step 0, IADMS judges whether the equipment update is successful. If it is unsuccessful, it go to step 160, i.e., the IADMS will instruct the IAD to recover the old software version before the software update, and the IAD will automatically replace the current software with the old one after receiving this indication. If the IADMS judges that update is successful, it will execute the next step 170. [0038] In the present embodiment, after the step 160, which means after the IAD has replaced the current software version with the old one, the step 1 will be automatically executed, which means the IADMS will instruct the equipment to execute the update process over again. As the update may be unsuccessful finally due to power off in the previous update procedure, executing the update process over again can guarantee the update function after the power is recovered; while if the update is unsuccessful because of the updated files error, the IADMS can re-specify the correct updated files name in the SNMP update command sent to the IAD so as to make sure that the update is successful this time. [0039] Of course, the IADMS can also notify the user of this situation after the IAD has recovered the old software version. The IADMS can also ask the user whether to update the equipment over again. After receiving the user s indication of updating equipment over again, the IADMS will instruct the IAD to execute the update operation over again. If the user chooses not to update anymore, the current process will be ended. [00] In the present invention, two memory buffers can be set inside the equipment to be updated, one for storing the software version before the update and the other for storing the new software version. In this way, if the current update is unsuccessful, the equipment can read the old software version from the memory buffer that stores the software version before update so as to recover the old software. Since the two software versions are stored in two memory buffers respectively, the unsuccessful update will not affect the software version before update, so that communication equipment can recover the complete old software and will not change into failure or fault because of the abnormal operation. [0041] The procedure of judging whether the update is successful is to judge whether an update failure TRAP is received or whether the update operation exceeds the scheduled time. If the IADMS receives the update failure TRAP from the IAD or determines that the update operation of IAD exceeds the scheduled time, the update is deemed as unsuccessful, otherwise, the update is successful. [0042] In step 170, the backup configuration data are recovered. The IADMS sends the recovery configuration data command to the IAD, and the command comprises the address information of the FTP/TFTP server which stores the configuration data, the configuration data files name and so on. After receiving this command, the IAD analyzes this command and downloads the configuration data files from the corresponding FTP/TFTP server via the FTP/TFTP protocol according to the FTP/TFTP server address, the configuration data files name and other information comprised in this command. After downloading all the configuration data files, the IAD loads the configuration data files. [0043] In step 180, the recovery procedure of the configuration data is monitored. While downloading the configuration data files and loading the configuration data files, the IAD will report the current progress to the IADMS through the progress TRAP, so that the IADMS can acquire the recovery status of the IAD through the progress TRAP received from the IAD, thus the monitor function is implemented. [0044] In step 190, the IADMS judges whether the configuration data are successfully recovered, if yes, the equipment update procedure is successfully completed and the current process is ended. If the configuration data are not successfully recovered, the step 170 is executed, namely the IADMS instructs the IAD to recover the configuration data over again. After receiving this instruction, the IAD downloads and loads the configuration data over again. [004] The process of judging whether the configuration data are successfully recovered is to judge whether a recovery failure TRAP is received or whether the recovery procedure exceeds the scheduled time. If the IADMS receives the recovery failure TRAP from the IAD or determines that the recovery operation of the IAD ex-

6 9 EP B1 ceeds the scheduled time, the IADMS confirms that the recovery operation fails; otherwise, the recovery operation is successful. [0046] Moreover, after confirming that the recovery operation fails, the IADMS can notify the user that current recovery operation fails and asks the user whether to recover the data over again. After receiving the user s instruction of recovering the data over again, the IADMS instructs the IAD to recover the configuration data over again. If the user chooses not to recover the data anymore, the current process will be ended. [0047] In some cases, like when the new software and old software are different from each other, it is needed to modify the configuration data properly, so that the configuration data can be successfully applied in the new software environment after being recovered, i.e. the configuration data can be successfully recovered. Hereby after the IAD resets in the above-mentioned step 170, the IADMS further judges whether it is needed to modify the configuration data, if yes, the IADMS notifies the user to modify the data or instructs the IAD to automatically modify the data by running an application program which is specially used for modifying the configuration data, and continues to execute the recovery operation for the configuration data in the step 170 after finishing the modification. Hereby, the configuration data modification, like conversing configuration data s format, can make the new configuration data format accord with the requirement of the new software, so as to make sure the configuration data can be successfully applied in the new software environment. [0048] In case of needing to modify the configuration data, the configuration data recovery may be unsuccessful finally because of the incorrect configuration data modification, when the IADMS finds the configuration data recovery unsuccessful, it will return to the process of instructing the user to modify the configuration data or instructing the IAD to run the application program to modify the configuration data. After the configuration data are correctly modified, the configuration data are recovered again so as to make sure the configuration data can be successfully recovered. [0049] The above mentioned is just the preferred embodiment of the present invention and not used to confine the present invention. Any modification, equivalent substitute and improvement are within the protection scope of the present invention. Claims 1. A method for updating software of communication equipment in a communication system through a server, which stores updated files used for updating the communication equipment, comprising: backing up configuration data in the communication equipment (0) to the server; downloading the updated files to the communication equipment from the server, and loading the updated files to the communication equipment to implement the communication equipment update (1); and recovering the configuration data backed up in the server to the communication equipment (170); characterized by further comprising: modifying the format of the configuration data when the configuration data needs to be modified with respect to the updated files, before recovering the configuration data backed up in the server to the communication equipment. 2. The method according to Claim 1, wherein backing up the configuration data in the communication equipment to the server comprises: the server monitoring the backup procedure of the configuration data, and if the configuration data are successfully backed up, proceeding to downloading the updated files to the communication equipment from the server and loading the updated files to the communication equipment to implement the communication update; if the configuration data are not successfully backed up, instructing the communication equipment to execute the backup operation for the configuration data again. 3. The method according to Claim 2, wherein monitoring the backup procedure of the configuration data (1) comprises: judging whether a backup failure message is received from the communication equipment or the backup operation exceeds a scheduled time, if a backup failure message is received from the communication equipment or the backup operation exceeds the scheduled time, the backup procedure fails; if no backup failure message is received from the communication equipment and the backup operation does not exceed the scheduled time, the backup procedure succeeds. 4. The method according to Claim 2, before instructing the communication equipment to execute the backup operation for the configuration data again further comprising: notifying a user the current configuration data backup has failed and asking the user whether to back up the data over again; after receiving the user s instruction to back up the data over again, executing the step of instructing the communication equipment to execute the backup operation again; otherwise, ending the current process. 6

7 11 EP B1 12. The method according to Claim 1, wherein, the communication equipment is an Integrated Access Device (IAD), and the server is a File Transfer Protocol/ Trivial File Transfer Protocol (FTP/TFTP) server, and the step of backing up the configuration data in the communication equipment to the server further comprises: an IAD Management System (IADMS) sending a Simple Network Management Protocol (SNMP) backup configuration data command to the IAD; and the step of backing up the configuration data in the communication equipment to the server comprises: after receiving the SNMP backup configuration data command, the IAD transmitting the configuration data files to the specified FTP/TFTP server via the FTP/TFTP protocol. 6. The method according to Claim 1, wherein, the configuration data comprise one or more than one type among user data, port data, protocol parameter data and default parameter data for guaranteeing the normal operation of the equipment. 7. The method according to Claim 1, wherein, the step of downloading the updated files to the communication equipment from the server and loading the updated files to the communication equipment to implement the communication update further comprises: the server monitoring the update procedure of the communication equipment, and if the update is successful, proceeding to recovering the configuration data backed up in the server to the communication equipment; if the update is not successful, instructing the communication equipment to execute the update operation over again. 8. The method according to Claim 7, wherein monitoring the update procedure of the communication equipment (1) comprises: judging whether an update failure message is received from the communication equipment or the update operation exceeds the scheduled time, if an update failure message is received from the communication equipment or the update operation exceeds the scheduled time, the update procedure succeeds; if no update failure message is received from the communication equipment and the update operation does not exceed the scheduled time, the update procedure fails. 9. The method according to Claim 7, before instructing the communication equipment to execute the update operation again further comprising: notifying the user that the current update has failed and asking the user whether to update the equipment over again; after receiving the user s instruction to update the equipment over again, executing the step of instructing the communication equipment to execute the update operation again; otherwise, ending the current process.. The method according to Claim 7, further comprising: storing an old software version in the communication equipment before executing the update operation, and instructing the communication equipment to recover the current software to the old version before instructing the communication equipment to execute the update operation over again (160). 11. The method according to Claim 1, wherein, the communication equipment is the IAD, and the server is the FTP/TFTP server, and the step of downloading the updated files to the communication equipment from the server and loading the updated files to the communication equipment to implement the communication update further comprises: the IADMS sending an SNMP update command which comprises the address information of the FTP/TFTP server and the name information of the updated files; and the step of downloading the updated files to the communication equipment from the server and loading the updated files to the communication equipment comprises: after receiving the SNMP update command, the IAD downloading the updated files corresponding to the updated files name from the specified FTP/TFTP server via the FTP/ TFTP protocol, and then loading the updated files. 12. The method according to Claim 1, wherein, the step of recovering the configuration data backed up in the server to the communication equipment further comprises: the server monitoring the recovery procedure of the configuration data, and if the configuration data are successfully recovered, ending the current process; if the configuration data are not successfully recovered, instructing the commu- 7

8 13 EP B1 14 nication equipment to execute the recovery operation for the configuration data over again. 13. The method according to Claim 12, wherein monitoring the recovery procedure of the configuration data (180) comprises: judging whether a recovery failure message is received from the communication equipment or the recovery operation exceeds the scheduled time, if a recovery failure message is received from the communication equipment or the recovery operation exceeds the scheduled time, the recovery procedure fails; if no recovery failure message is received from the communication equipment and the recovery operation does not exceed the scheduled time, the recovery procedure succeeds. 14. The method according to Claim 12, before instructing the communication equipment to execute the recovery operation for the configuration data over again further comprising: notifying the user that the current configuration data recovery has failed and asking the user whether to recover the configuration data over again; after receiving the user s instruction to recover the configuration data over again, executing the step of instructing the communication equipment to execute the recovery operation over again; otherwise, ending the current process.. The method according to Claim 1, wherein, the communication equipment is the IAD, and the server is the FTP/TFTP server, and the step of recovering the configuration data backed up in the server to the communication equipment further comprises: the IADMS sending an SNMP recovery configuration data command which comprises the address information of the FTP/TFTP server and the name information of the configuration data files; and recovering the configuration data backed up in the server to the communication equipment comprises: Patentansprüche after receiving the SNMP recovery configuration data command, the IAD downloading the configuration data files corresponding to the configuration data files name from the specified FTP/TFTP server via the FTP/ TFTP protocol, and then loading the configuration data files Verfahren zur Softwareaktualisierung einer Kommunikationsvorrichtung in einem Kommunikationssystem durch einen Server, der aktualisierte, für die Aktualisierung der Kommunikationsvorrichtung verwendete Dateien speichert, umfassend: Sichern von Konfigurationsdaten in der Kommunikationsvorrichtung (0) auf den Server; Herunterladen der aktualisierten Dateien von dem Server auf die Kommunikationsvorrichtung und Laden der aktualisierten Dateien in die Kommunikationsvornchtung, um die Aktualisierung der Kommunikationsvorrichtung (1) zu realisieren; und Wiederherstellen der auf dem Server gesicherten Konfigurationsdaten in der Kommunikationsvorrichtung (170); dadurch gekennzeichnet, ferner zu umfassen: Ändern des Formats der Konfigurationsdaten, wenn die Konfigurationsdaten hinsichtlich der aktualisierten Dateien geändert werden müssen, bevor die auf dem Server gesicherten Konfigurationsdaten in der Kommunikationsvorrichtung wiederhergestellt werden. 2. Verfahren gemäß Anspruch 1, worin das Sichern der Konfigurationsdaten aus der Kommunikationsvorrichtung auf den Server umfasst: Überwachen des Sicherungsvorgangs der Konfigurationsdaten durch den Server und, falls die Konfigurationsdaten erfolgreich gesichert sind, Fortfahren mit dem Herunterladen der aktualisierten Dateien von dem Server auf die Kommunikationsvorrichtung und Laden der aktualisierten Dateien in die Kommunikationsvorrichtung, um die Kommunikationsaktualisierung zu realisieren; falls die Konfigurationsdaten nicht erfolgreich gesichert sind, Anweisen der Kommunikationsvorrichtung, den Sicherungsvorgang für die Konfigurationsdaten erneut auszuführen. 3. Verfahren gemäß Anspruch 2, worin das Überwachen des Sicherungsvorgangs der Konfigurationsdaten (1) umfasst: Beurteilen, ob eine Sicherungsfehlermeldung von der Kommunikationsvorrichtung empfangen wird oder der Sicherungsvorgang eine vorgesehene Zeit überschreitet, wobei, falls eine Sicherungsfehlermeldung von der Kommunikationsvorrichtung empfangen wird oder der Sicherungsvorgang die vorgesehene Zeit überschreitet, der Sicherungsvorgang fehlschlägt; und falls keine Sicherungsfehlermeldung von der Kommunikationsvorrichtung empfangen wird und der Sicherungsvorgang die vorgesehene Zeit nicht überschreitet, der Sicherungsvorgang erfolgreich ist. 8

9 EP B Verfahren gemäß Anspruch 2, ferner vor dem Anweisen der Kommunikationsvorrichtung, den Sicherungsvorgang für die Konfigurationsdaten erneut auszuführen, umfassend: Benachrichtigen eines Benutzers, dass die aktuelle Konfigurationsdatensicherung fehlgeschlagen ist und Fragen des Benutzers, ob die Daten erneut zu sichern sind; nach Empfangen der Benutzeranweisung, die Daten erneut zu sichern, Ausführen des Schritts, die Kommunikationsvorrichtung anzuweisen, den Datensicherungsvorgang erneut auszuführen; andernfalls, Beenden des aktuellen Vorgangs.. Verfahren gemäß Anspruch 1, worin die Kommunikationsvorrichtung eine integrierte Zugriffsvorrichtung ("Integrated Access Device", IAD) und der Server ein "File Transfer Protocol (FTP)"-/"Trivial File Transfer Protocol (TFTP)"-Server ist und der Schritt des Sicherns der Konfigurationsdaten aus der Kommunikationsvorrichtung auf den Server ferner umfasst: Überwachen des Aktualisierungsvorgangs der Kommunikationsvorrichtung durch den Server und, falls die Aktualisierung erfolgreich ist, Fortfahren mit der Wiederherstellung der auf dem Server gesicherten Konfigurationsdaten in der Kommunikationsvorrichtung; falls die Aktualisierung nicht erfolgreich ist, Anweisen der Kommunikationsvorrichtung, den Sicherungsvorgang erneut auszuführen. 8. Verfahren gemäß Anspruch 7, worin das Überwachen des Aktualisierungsvorgangs der Kommunikationsvorrichtung (1) umfasst: Beurteilen, ob eine Aktualisierungsfehlermeldung von der Kommunikationsvorrichtung empfangen wird oder der Aktualisierungsvorgang die vorgesehene Zeit überschreitet, wobei, falls eine Fehlermeldung von der Kommunikationsvorrichtung empfangen wird oder der Aktualisierungsvorgang die vorgesehene Zeit überschreitet, der Aktualisierungsvorgang erfolgreich ist; und falls keine Aktualisierungsmeldung von der Kommunikationsvorrichtung erhalten wird und der Aktualisierungsvorgang die vorgesehene Zeit nicht überschreitet, der Aktualisierungsvorgang fehlschlägt. 9. Verfahren gemäß Anspruch 7, ferner vor dem Anweisen der Kommunikationsvorrichtung, den Aktualisierungsvorgang erneut auszuführen, umfassend: ein IAD-Verwaltungssystem (IADMS), das einen "Simple Network Management Protocol (SNMP)"- Konfigurationsdatensicherungsbefehl an das IAD sendet; und der Schritt des Sicherns der Konfigurationsdaten aus der Kommunikationsvornchtung auf den Server umfasst: Übertragen der Konfigurationsdatendateien durch das IAD nach Empfangen des SNMP- Konfigurationsdatensicherungsbefehls an den angegebenen FTP-/TFTP- Server über das FTP-/TFTP-Protokoll. 6. Verfahren gemäß Anspruch 1, worin die Konfigurationsdaten eine oder mehrere Arten aus Benutzerdaten, Schnittstellendaten, Protokollparameterdaten und Vorgabeparameterdaten zur Gewährleistung des normalen Betriebs der Vorrichtung umfassen. 7. Verfahren gemäß Anspruch 1, worin der Schritt des Herunterladens der aktualisierten Dateien von dem Server auf die Kommunikationsvorrichtung und das Laden der aktualisierten Dateien in die Kommunikationsvorrichtung zur Realisierung der Kommunikationsaktualisierung ferner umfasst: Benachrichtigen des Benutzers, dass die aktuelle Aktualisierung fehlgeschlagen ist und Fragen des Benutzers, ob die Vorrichtung erneut zu aktualisieren ist; nach Empfangen der Benutzeranweisung, die Vorrichtung erneut zu aktualisieren, Ausführen des Schritts, die Kommunikationsvorrichtung anzuweisen, den Aktualisierungsvorgang erneut auszuführen; andernfalls, Beenden des aktuellen Vorgangs.. Verfahren gemäß Anspruch 7, ferner umfassend: Speichern einer alten Softwareversion in der Kommunikationsvorrichtung vor dem Ausführen des Aktualisierungsvorgangs und Anweisen der Kommunikationsvorrichtung, die aktuelle Software in der alten Version wiederherzustellen, bevor die Kommunikationsvorrichtung angewiesen wird, den Aktualisierungsvorgang erneut auszuführen (160). 11. Verfahren gemäß Anspruch 1, worin die Kommunikationsvorrichtung das IAD und der Server der FTP-/ TFTP-Server ist und der Schritt des Herunterladens der aktualisierten Dateien von dem Server auf die Kommunikationsvorrichtung und des Ladens der aktualisierten Dateien in die Kommunikationsvorrichtung zur Realisierung der Kommunikationsaktualisierung ferner umfasst: Senden eines SNMP-Aktualisierungsbefehls durch das IADMS, der die Adressinformation des FTP-/TFTP-Servers und die Namensinformation der aktualisierten Dateien umfasst; 9

10 17 EP B1 18 und der Schritt des Herunterladens der aktualisierten Dateien auf die Kommunikationsvorrichtung von dem Server und des Ladens der aktualisierten Dateien in die Kommunikationsvorrichtung umfasst: Herunterladen der aktualisierten Dateien, die den Namen der aktualisierten Dateien entsprechen, nach Empfangen des SNMP- Aktualisierungsbefehls von dem angegebenen FTP-/TFTP-Server über das FTP-/ TFTP-Protokoll durch das IAD und dann Laden der aktualisierten Dateien. 12. Verfahren gemäß Anspruch 1, worin der Schritt der Wiederherstellung der auf dem Server gesicherten Konfigurationsdaten in der Kommunikationsvorrichtung ferner umfasst: Überwachen des Wiederherstellungsvorgangs der Konfigurationsdaten durch den Server und, falls die Konfigurationsdaten erfolgreich wiederhergestellt sind, Beenden des aktuellen Vorgangs; falls die Konfigurationsdaten nicht erfolgreich wiederhergestellt sind, Anweisen der Kommunikationsvorrichtung, den Wiederherstellungsvorgang für die Konfigurationsdaten erneut auszuführen. 13. Verfahren gemäß Anspruch 12, worin das Überwachen des Wiederherstellungsvorgangs der Konfigurationsdaten (180) umfasst: Beurteilen, ob eine Wiederherstellungsfehlermeldung von der Kommunikationsvorrichtung empfangen wird oder der Wiederherstellungsvorgang die vorgesehene Zeit überschreitet, wobei, falls eine Wiederherstellungsfehlermeldung von der Kommunikationsvorrichtung empfangen wird oder der Wiederherstellungsvorgang die vorgesehene Zeit überschreitet, der Wiederherstellungsvorgang fehlschlägt; und falls keine Wiederherstellungsfehlermeldung von der Kommunikationsvorrichtung empfangen wird und der Wiederherstellungsvorgang die vorgesehene Zeit nicht überschreitet, der Wiederherstellungsvorgang erfolgreich ist. 14. Verfahren gemäß Anspruch 12, ferner vor dem Anweisen der Kommunikationsvorrichtung, den Wiederherstellungsvorgang für die Konfigurationsdaten erneut auszuführen, umfassend: Benachrichtigen des Benutzers, dass die aktuelle Konfigurationsdatenwiederherstellung fehlgeschlagen ist und Fragen des Benutzers, ob die Konfigurationsdaten erneut wiederherzustellen sind; nach Empfangen der Benutzeranweisung, die Konfigurationsdaten erneut wiederherzustellen, Ausführen des Schritts, die Kommunikationsvorrichtung anzuweisen, den Wiederherstellungsvorgang erneut auszuführen; andernfalls, Beenden des aktuellen Vorgangs.. Verfahren gemäß Anspruch 1, worin die Kommunikationsvorrichtung das IAD und der Server der FTP-/ TFTP-Server ist und der Schritt des Wiederherstellens der auf dem Server gesicherten Konfigurationsdaten in der Kommunikationsvorrichtung ferner umfasst: Senden eines SNMP-Konfigurationsdatenwiederherstellungsbefehls durch das IADMS, der die Adressinformation des FTP-/TFTP-Servers und die Namensinformation der Konfigurationsdatendateien umfasst; und das Wiederherstellen der auf dem Server gesicherten Konfigurationsdaten in der Konfigurationsvorrichtung umfasst: Revendications Herunterladen der Konfigurationsdatendateien, die den Namen der Konfigurationsdatendateien entsprechen, nach Empfangen des SNMP-Konfigurationsdatenwiederherstellungsbefehls von dem angegebenen FTP-/TFTP-Server über das FTP-/ TFTP-Protokoll durch das IAD und dann Laden der Konfigurationsdatendateien. 1. Procédé de mise à jour de logiciel d un dispositif de communication dans un système de communication par l intermédiaire d un serveur, qui stocke des fichiers mis à jour utilisés pour la mise à jour du dispositif de communication, comprenant les étapes consistant à : sauvegarder les données de configuration dans le dispositif de communication (0) sur le serveur ; télécharger les fichiers mis à jour sur le dispositif de communication à partir du serveur, et charger les fichiers mis à jour sur le dispositif de communication pour mettre en oeuvre la mise à jour du dispositif de communication (1) ; et récupérer les données de configuration sauvegardées dans le serveur sur le dispositif de communication (170) ; caractérisé en ce qu il comprend en outre l étape consistant à : modifier le format des données de configuration lorsque les données de configuration doivent être modifiées par rapport aux fichiers mis à jour, avant de récupérer les données de configuration sauvegardées

11 19 EP B1 dans le serveur sur le dispositif de communication. 2. Procédé selon la revendication 1, dans lequel la sauvegarde des données de configuration dans le dispositif de communication sur le serveur comprend : le fait que le serveur surveille la procédure de sauvegarde des données de configuration et, si les données de configuration sont sauvegardées avec succès, qu il passe au téléchargement des fichiers mis à jour sur le dispositif de communication à partir du serveur et au chargement des fichiers mis à jour sur le dispositif de communication pour mettre en oeuvre la mise à jour de communication ; si les données de configuration ne sont pas sauvegardées avec succès, qu il donne pour instruction au dispositif de communication d exécuter de nouveau l opération de sauvegarde des données de configuration. 3. Procédé selon la revendication 2, dans lequel la surveillance de la procédure de sauvegarde des données de configuration (1) comprend : le fait de juger si un message d échec de sauvegarde est reçu du dispositif de communication ou si l opération de sauvegarde dépasse un temps planifié, si un message d échec de sauvegarde est reçu du dispositif de communication ou si l opération de sauvegarde dépasse le temps planifié, la procédure de sauvegarde est un échec ; si aucun message d échec de sauvegarde n est reçu du dispositif de communication et si l opération de sauvegarde ne dépasse pas le temps planifié, la procédure de sauvegarde est un succès. 4. Procédé selon la revendication 2, comprenant en outre, avant de donner pour instruction au dispositif de communication d exécuter de nouveau l opération de sauvegarde des données de configuration, les étapes consistant à : 2 3 transfert de fichier (FTP/TFTP), et l étape de sauvegarde des données de configuration dans le dispositif de communication sur le serveur comprend en outre : l envoi par un système de gestion IAD (IADMS) d un ordre de sauvegarde de données de configuration de protocole simplifié de gestion de réseau (SNMP) à l IAD ; et l étape de sauvegarde des données de configuration dans le dispositif de communication sur le serveur comprend : après la réception de l ordre de sauvegarde de données de configuration SNMP, la transmission par l IAD des fichiers de données de configuration au serveur FTP/ TFTP spécifié via le protocole FTP/TFTP. 6. Procédé selon la revendication 1, dans lequel les données de configuration comprennent un ou plus d un type parmi les données utilisateur, les données de port, les données de paramètre de protocole et les données de paramètre par défaut pour garantir le fonctionnement normal de l équipement. 7. Procédé selon la revendication 1, dans lequel l étape de téléchargement des fichiers mis à jour sur le dispositif de communication à partir du serveur et de chargement des fichiers mis à jour sur le dispositif de communication pour mettre en oeuvre la mise à jour de communication comprend en outre : le fait que le serveur surveille la procédure de mise à jour du dispositif de communication et, si la mise à jour est un succès, qu il passe à la récupération des données de configuration sauvegardées dans le serveur sur le dispositif de communication ; et si la mise à jour n est pas un succès, qu il donne pour instruction au dispositif de communication d exécuter de nouveau l opération de mise à jour. informer un utilisateur que la sauvegarde des données de configuration actuelle a échoué et demander à l utilisateur s il faut de nouveau sauvegarder les données ; après la réception de l instruction de l utilisateur de sauvegarder de nouveau les données, exécuter l étape consistant à donner pour instruction au dispositif de communication d exécuter de nouveau l opération de sauvegarde ; sinon, terminer le procédé en cours.. Procédé selon la revendication 1, dans lequel le dispositif de communication est un dispositif d accès intégré (IAD) et le serveur est un serveur de protocole de transfert de fichier/protocole simplifié de Procédé selon la revendication 7, dans lequel la surveillance de la procédure de mise à jour du dispositif de communication (1) comprend : le fait de juger si un message d échec de mise à jour est reçu du dispositif de communication ou si l opération de mise à jour dépasse le temps planifié, si un message d échec de mise à jour est reçu du dispositif de communication ou si l opération de mise à jour dépasse le temps planifié, la procédure de mise à jour est un succès ; si aucun message d échec de mise à jour n est reçu du dispositif de communication et si l opération de mise à jour ne dépasse pas le temps planifié, la procédure de mise à jour est un échec. 9. Procédé selon la revendication 7, comprenant en 11

12 21 EP B1 22 outre, avant de donner pour instruction au dispositif de communication d exécuter de nouveau l opération de mise à jour, les étapes consistant à : informer l utilisateur que la mise à jour en cours a échoué et demander à l utilisateur s il faut de nouveau mettre à jour l équipement ; après la réception de l instruction de l utilisateur de mettre à jour de nouveau l équipement, exécuter l étape consistant à donner pour instruction au dispositif de communication d exécuter de nouveau l opération de mise à jour ; sinon, terminer le procédé en cours.. Procédé selon la revendication 7, comprenant en outre les étapes consistant à : stocker une ancienne version logicielle dans le dispositif de communication avant d exécuter l opération de mise à jour, et donner pour instruction au dispositif de communication de récupérer le logiciel actuel sur l ancienne version avant de donner pour instruction au dispositif de communication d exécuter de nouveau l opération de mise à jour (160). 11. Procédé selon la revendication 1, dans lequel le dispositif de communication est l IAD et le serveur est le serveur FTP/TFTP, et l étape de téléchargement des fichiers mis à jour sur le dispositif de communication à partir du serveur et de chargement des fichiers mis à jour sur le dispositif de communication pour mettre en oeuvre la mise à jour de communication comprend en outre : l envoi par l IADMS d un ordre de mise à jour SNMP qui comprend les informations d adresse du serveur FTP/TFTP et les informations de nom des fichiers mis à jour ; et l étape de téléchargement des fichiers mis à jour sur le dispositif de communication à partir du serveur et de chargement des fichiers mis à jour sur le dispositif de communication comprend : après la réception de l ordre de mise à jour SNMP, le fait que l IAD télécharge les fichiers mis à jour correspondant au nom de fichiers mis à jour à partir du serveur FTP/ TFTP spécifié via le protocole FTP/TFTP, puis qu il charge les fichiers mis à jour. 12. Procédé selon la revendication 1, dans lequel l étape de récupération des données de configuration sauvegardées dans le serveur sur le dispositif de communication comprend en outre : récupération des données de configuration et, si les données de configuration sont récupérées avec succès, qu il mette fin au procédé en cours ; si les données de configuration ne sont pas récupérées avec succès, qu il donne pour instruction au dispositif de communication d exécuter de nouveau l opération de récupération des données de configuration. 13. Procédé selon la revendication 12, dans lequel la surveillance de la procédure de récupération des données de configuration (180) comprend : le fait de juger si un message d échec de récupération est reçu du dispositif de communication ou si l opération de récupération dépasse le temps planifié, si un message d échec de récupération est reçu du dispositif de communication ou si l opération de récupération dépasse le temps planifié, la procédure de récupération est un échec ; si aucun message d échec de récupération n est reçu du dispositif de communication et si l opération de récupération ne dépasse pas le temps planifié, la procédure de récupération est un succès. 14. Procédé selon la revendication 12, comprenant en outre, avant de donner pour instruction au dispositif de communication d exécuter de nouveau l opération de récupération des données de configuration, les étapes consistant à : informer l utilisateur que la récupération des données de configuration actuelle a échoué et demander à l utilisateur s il faut de nouveau récupérer les données de configuration ; après la réception de l instruction de l utilisateur de récupérer de nouveau les données de configuration, exécuter l étape consistant à donner pour instruction au dispositif de communication d exécuter de nouveau l opération de récupération ; sinon, terminer le procédé en cours.. Procédé selon la revendication 1, dans lequel le dispositif de communication est l IAD et le serveur est le serveur FTP/TFTP, et l étape de récupération des données de configuration sauvegardées dans le serveur sur le dispositif de communication comprend en outre : l envoi par l IADMS d un ordre de récupération des données de configuration SNMP qui comprend les informations d adresse du serveur FTP/TFTP et les informations de nom des fichiers de données de configuration ; et l étape de récupération des données de configuration sauvegardées dans le serveur sur le dispositif de communication comprend : le fait que le serveur surveille la procédure de après la réception de l ordre de récupéra- 12

13 23 EP B1 24 tion des données de configuration SNMP, le fait que l IAD télécharge les fichiers de données de configuration correspondant au nom de fichiers de données de configuration à partir du serveur FTP/TFTP spécifié via le protocole FTP/TFTP, puis qu il charge les fichiers de données de configuration

14 EP B1 14

15 EP B1 REFERENCES CITED IN THE DESCRIPTION This list of references cited by the applicant is for the reader s convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard. Patent documents cited in the description US A1 [0007]