CN100346607C - Method for interface back-up in interface hot connect-disconnect supporting system - Google Patents
Method for interface back-up in interface hot connect-disconnect supporting system Download PDFInfo
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- CN100346607C CN100346607C CNB031592198A CN03159219A CN100346607C CN 100346607 C CN100346607 C CN 100346607C CN B031592198 A CNB031592198 A CN B031592198A CN 03159219 A CN03159219 A CN 03159219A CN 100346607 C CN100346607 C CN 100346607C
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Abstract
The present invention discloses a method for interface back-up in a system which supports the hot inserting and pulling of interfaces. The method comprises the following steps that control blocks used for recording the configuration information of the interfaces are created in the system and each control block corresponds to one interface; a backup center maintains the control blocks and makes the control blocks dynamically record the states and the information of corresponding interfaces and the states and the information are reported by an interface management module; when the interfaces are pulled out and inserted again, the control blocks corresponding to the interfaces restore the configuration information of the interfaces before the interfaces are pulled out.
Description
Technical field
The present invention relates to the network system equipment interfacing, the method for the enterprising line interface backup of particularly a kind of system in the supporting interface hot plug.
Background technology
In order to improve the reliability of network, route platform uses backup center that perfect backup functionality is provided, and the interface that can be backed up is called main interface, and the interface of doing backup for other interface is called backup interface.Any one physical interface or sub-interface on the router can be as main interfaces, certain the bar logical channel on any one interface as X.25 or the virtual circuit of frame relay also can be used as main interface.Any one physical interface on the router or certain the bar logical channel on Virtual-Template interface or the interface can be as the backup interfaces of other interface or logical channel.
To a main interface, can be it a plurality of backup interfaces are provided; When main interface broke down, a plurality of backup interfaces can decide according to priority and take over order.
Backup center supports backup load to share function.When in the backup chain arbitrarily the flow of interface reach on the thresholding of setting in limited time, the highest available backup interface of priority of router startup carries out load balancing together with main interface; Total flow on the backup chain is prescribed a time limit down less than the thresholding of setting, and router is closed a backup interface that priority level is minimum.
For the function that realizes that the backup center docking port backs up, need be by the configuration order backup interface that to indicate an interface be the another one interface.Consult shown in Figure 1ly, backup center is understood the state of interface by interface management, in the backup that realizes under the assistance of interface management between the interface.Main interface and backup interface are told backup center with the Interface status situation of change of oneself by interface management respectively, backup center is with reference to original configuration, according to the state of main interface, the state of backup interface, the priority of backup interface and the flow of active and standby interface, determine whether to enable backup interface and enable which backup mouth, thereby realize interface backup.When backup interface was not activated, backup interface was closed, and when backup interface was activated, backup interface was opened.
The shortcoming that prior art exists:
1, the existing backup center of the version of hot plug of supporting of route platform is not supported hot plug.Promptly on the version of supporting hot plug, the function of backup center can lose efficacy when carrying out hot plug operations.
2, support that according to route platform is existing the scheme of hot plug can not complete realization backup center.When main interface place interface board with backup interface place interface board successively pulls out away and then successively plug the state before the configuration of backup center can not return to and extract.Its reason is: in the route platform version of supporting hot plug, each interface board all has the configuration of oneself; The configuration of route platform by the saving interface plate, make interface board pull out away be plugged again after, original configuration can be re-executed automatically, thus the purpose of the running status before reaching the restoration interface plate and extracting.But in the backup center of route platform, on main interface, there is configuration order to indicate the backup interface that main interface has, and on backup interface, specifies the main interface of backup interface without any configuration order.So when main interface place interface board and backup interface place interface board are all extracted, and then plug main interface place interface board earlier, the configuration order of the main interface that is automatically performed will also not plugged thereby can not be carried out and causes backup interface to lose configuration because of backup interface place interface board, even plug backup interface place interface board again, backup configuration and Status of Backups before also can't recovering to extract.
Summary of the invention
The object of the present invention is to provide the method for the enterprising line interface backup of a kind of system, lose the problem of configuration with backup interface in the solution prior art in the supporting interface hot plug.
For addressing the above problem, the invention provides following technical proposals:
The method of the enterprising line interface backup of a kind of system in the supporting interface hot plug, described system has backup center and interface management module, and the interface status information that this backup center obtains according to the interface management module realizes interface backup; The method comprising the steps of:
Described control system is that interface is created the controll block that is used to write down relevant interface backup information;
Safeguard described controll block by backup center, and in controll block the corresponding interface state that reports of record interface administration module dynamically; And
When after interface is pulled out, turning back to again, the configuration about backing up before backup center is extracted from the controll block restoration interface of this interface correspondence.
Wherein:
A controll block is created for each interface by system when initial; Maybe when specifying an interface to become main interface or backup interface, just create controll block for this interface.
When main interface or backup interface become to neither the controll block that main interface is deleted this interface neither backup interface the time.
Described each controll block has unique controll block sign.
The controll block of each main interface correspondence writes down the controll block sign about all backup interfaces of all information of interface backup and this main interface that disposes on this main interface.
The controll block of each backup interface correspondence writes down the controll block sign of the main interface of this backup interface.
After main interface is pulled out,, all backup interfaces that are not pulled out of this main interface are opened according to the interface backup information of this main interface controll block record.
After main interface inserted, work was carried out in the configuration before all backup interfaces that are not pulled out of this main interface and main interface are extracted according to main interface.
Described controll block can be kept at backup center or distributed and saved in the data structure system of system.
Backup center is safeguarded a unique controll block for each interface among the present invention, whether this controll block can be pulled out away by record interface, on can record interface about the configuration of backup, can find relevant main interface or backup interface, can be not deleted after interface is pulled out away, so when main interface place interface board with backup interface place interface board successively pulls out away and then successively plug, the configuration before recovering backup center and extracting.
Description of drawings
Fig. 1 is the structural representation of interface management system in the prior art;
Fig. 2 is the structural representation of interface management system among the present invention.
Embodiment
For convenience of description, will in the system that supports hot plug, the foundation of " configuration of the interface that recovery is plugged again after pulling out away " be called the interface record among the present invention.Interface record is the key point that communication system is supported hot plug, after the interface record of being pulled out interface is deleted, just can't be behind the former interface board of insertion recovery configuring.
Consult shown in Figure 2ly, system sets up a controll block that is used for information such as record interface configuration and state for each interface.Interface is that main interface or backup interface all have own unique controll block, and the controll block of main interface is called main interface controll block, and the controll block of backup interface is called backup interface controll block, by the controll block of each interface of system backup central service.For an interface, can not be main interface be again backup interface, and a backup interface can only have a main interface.
Each controll block has own unique sign, the unique identification of each controll block record corresponding interface.Each main interface controll block writes down the sign of the backup interface controll block of these all backup interfaces of main interface; Each backup interface controll block writes down the controll block sign of the main interface of this backup interface.
A blank controll block can just be created for each interface by system when initial, blank controll block is neither main interface controll block neither backup interface controll block, just there is existence all the time at system's run duration in this blank controll block as long as corresponding interface writes down, even this interface may not can participate in interface backup.Blank controll block is for main interface controll block and backup interface controll block, blank is to emphasize that this interface does not participate in backup, so blank controll block need write down the state information of this interface, this controll block need show also about the record of backup configuration that this interface does not participate in backup neither main interface simultaneously, neither backup interface.
If system resource be not enough fully, can take following principle (the present invention is default according to following principle) to create controll block:
A, when participating in backup, just create controll block by the configuration order specified interface;
When specify an interface to become main interface by configuration order by general interface (be not main interface neither backup interface), when becoming the backup interface of this main interface, system just is that these two interfaces are created controll blocks to the another one interface by general interface (be not main interface neither backup interface);
When specifying, when interface becomes the newly-increased backup interface of this main interface by general interface (be not main interface neither backup interface), be that backup interface is created controll block by configuration order;
B, when by the function of configuration order cancellation interface in the backup relation, just delete controll block;
When specifying an interface to become general interface, delete the original controll block of this interface by backup interface by configuration order;
When specifying main interface neither one backup interface to become general interface by configuration order, delete the original controll block of this general interface.A main interface can have a plurality of backup interfaces, and when the neither one backup interface has also just become general interface, this moment, main interface controll block just can be deleted.
Each controll block need write down the configuration of this interface about backup, and wherein, all information about interface backup that dispose on the main interface are kept on the main interface controll block of this main interface; All information about interface backup that dispose on the backup interface are kept on the backup interface controll block of this backup interface.
When interface writes down when deleted, the controll block of deletion corresponding interface; When deletion main interface controll block, all corresponding backup interface controll blocks become blank controll block or deleted; When deletion backup interface controll block, corresponding main interface controll block no longer writes down the sign of this backup controll block; When main interface controll block did not write down the sign of a backup interface controll block, this main interface controll block became blank controll block or deleted.
Whether the interface that each controll block writes down this controll block correspondence is pulled out away, new record more when interface is extracted or insert; Whether the main interface that each backup interface controll block writes down corresponding backup interface is pulled out away, new record more when main interface is extracted or insert.
Whether all backup interfaces that each main interface controll block writes down corresponding main interface are pulled out away, new record more when backup interface is extracted or insert.
When main interface was pulled out away, all backup interfaces that do not pulled out away of this main interface all were opened; When main interface was plugged, this main interface and all backup interfaces that do not pulled out away carried out work according to original configuration.
When backup interface is pulled out away, main interface that is not pulled out away and backup interface carry out work according to original configuration; When backup interface is inserted into, this backup interface and the active and standby interface that do not pulled out away are according to original configuration effort.
After main interface is pulled out away, the backup interface that this main interface is not pulled out away, can specify by configuration order becomes the new main interface or the backup interface of other main interfaces, even insert original main interface this moment again, original configuration also can't recover; After main interface is pulled out away, the backup interface that this main interface is not pulled out away, can specify by configuration order becomes the new main interface or the backup interface of other main interfaces, and original main interface controll block is not preserved the sign of this backup interface controll block.
After all backup interfaces of main interface were pulled out away, this main interface can be specified the backup interface that becomes other main interfaces by configuration order, even insert original backup interface this moment again, original configuration also can't recover; After all backup interfaces of main interface were pulled out away, this main interface can be specified the backup interface that becomes other main interfaces by configuration order, and original backup interface controll block is not preserved the sign of this main interface.
To have only backup interface 2 and backup interface 3 with main interface among Fig. 21 below is example, is described in and " a) extracts main interface 1 earlier; B) extract the backup interface 2 of main interface then; C) plug main interface 1 then, d) plug backup interface 2 then " situation under, the course of work of backup center of the present invention:
(1) configuration section about interface 1 writes down related command in the configuration file of system, shows that interface 2 and interface 3 are backup interfaces of interface 1.
(2) it is such extracting preoperative state in execution: the record of the controll block of main interface 1 shows that this controll block belongs to interface 1, interface 1 is a main interface, this interface is not pulled out, this interface has two backup interfaces, and two backup interfaces all are not pulled out, interface 1 is with role's work of main interface, and the controll block of main interface 1 is preserved the sign of the controll block of backup interface 2, also preserves the sign of the controll block of backup interface 3; The record of the controll block of backup interface 2 shows that this controll block belongs to interface 2, interface 2 is backup interfaces, and this interface is not pulled out, and its main interface is not pulled out yet, interface 2 is with role's work of backup interface, and the controll block of interface 2 is preserved the sign of its main interface controll block; The record of the controll block of the record of the controll block of backup interface 3 and backup interface 2 is similar.
Because interface 1, interface 2 and interface 3 with role's work of main interface and backup interface, when backup center is received the notice of interface management Interface status variation, can be realized the function of interface backup by the mechanism of prior art respectively.
(3) carry out the operation of extracting interface 1: backup center at first obtains the notice " interface 1 is pulled out " of interface management, backup center finds the controll block of interface 1, thereby know that interface 1 is a main interface, and know that interface 2 and interface 3 are backup interfaces of interface 1, so the management of backup center notification interface " is opened interface 2 and interface 3; with role's work (need not participate in backup) of general interface ", revise interface 1 simultaneously, the state of the controll block of interface 2 and interface 3, amended state is as follows: the record of the controll block of main interface 1 shows that this controll block belongs to interface 1, interface 1 is a main interface, this interface is pulled out, this interface has two backup interfaces, and two backup interfaces all are not pulled out, interface 1 no longer with the role of main interface work but one extract interface, the controll block of main interface 1 is preserved the sign of the controll block of backup interface 2, also preserves the sign of the controll block of backup interface 3; The record of the controll block of backup interface 2 shows that this controll block belongs to interface 2, interface 2 is backup interfaces, and this interface is not pulled out, and its main interface is pulled out, interface 2 is with role's work of general interface, and the controll block of interface 2 is preserved the sign of its main interface controll block; The record of the controll block of the record of the controll block of backup interface 3 and backup interface 2 is similar.
Because main interface 1 is pulled out, interface 2 and interface 3 are with role's work of general interface, when backup center was received the notice of interface management Interface status variation, backup center was only understood the variation of record interface state, can not realize the function of interface backup by the mechanism of introducing in the background technology.
(4) carry out the operation of extracting interface 2: backup center at first obtains the notice " interface 2 is pulled out " of interface management, backup center finds the controll block of interface 2, thereby know that interface 2 is backup interface and interface 2 with the role of general interface in work, and know that interface 1 is that main interface is pulled out, interface 3 is another one backup interfaces of interface 1, backup center does not need the notification interface management, only need to revise interface 1, the state of the controll block of interface 2 and interface 3, amended state is as follows: the record of the controll block of main interface 1 shows that this controll block belongs to interface 1, interface 1 is a main interface, this interface is pulled out, this interface has two backup interfaces, and have only a backup interface not to be pulled out, interface 1 no longer with the role of main interface work but one extract interface, the controll block of main interface 1 is preserved the sign of the controll block of backup interface 2, also preserves the sign of the controll block of backup interface 3; The record of the controll block of backup interface 2 shows that this controll block belongs to interface 2, and interface 2 is backup interfaces, and this interface is pulled out, and its main interface is pulled out, and interface 2 is to extract interface, and the controll block of interface 2 is preserved the sign of its main interface controll block; The record of the controll block of backup interface 3 shows that this controll block belongs to interface 3, interface 3 is backup interfaces, and this interface is not pulled out, and its main interface is pulled out, interface 3 is with role's work of general interface, and the controll block of interface 3 is preserved the sign of its main interface controll block.
Because main interface 1 and interface 2 are pulled out, interface 3 is worked with the role of general interface respectively, when backup center was received the notice of interface management Interface status variation, backup center was only understood the variation of record interface state, can not realize the function of interface backup by the mechanism of introducing in the background technology.
(5) carry out the operation of inserting interface 1: backup center at first obtains the notice " interface 1 is inserted into " of interface management, backup center finds the controll block of interface 1, thereby know that interface 1 is a main interface, interface 1 has two backup interfaces, and there is a backup interface not to be pulled out, interface 3 is the interfaces that are not pulled out, the standing state of mechanism that backup center can provide according to background technology and interface 1 and interface 3, the state of docking port 3 adjusts, the notification interface management is opened or down interface 3, need to revise interface 1 simultaneously, the state of the controll block of interface 2 and interface 3, amended state is as follows: the record of the controll block of main interface 1 shows that this controll block belongs to interface 1, interface 1 is a main interface, this interface is not pulled out, this interface has two backup interfaces, and there is a backup interface not to be pulled out, there is a backup interface to be pulled out, interface 1 is with role's work of main interface, the controll block of main interface 1 is preserved the sign of the controll block of backup interface 2, also preserves the sign of the controll block of backup interface 3; The record of the controll block of backup interface 2 shows that this controll block belongs to interface 2, and interface 2 is backup interfaces, and this interface is pulled out, and its main interface is not pulled out, and interface 2 is to extract interface, and the controll block of interface 2 is preserved the sign of its main interface controll block; The record of the controll block of backup interface 3 shows that this controll block belongs to interface 3, interface 3 is backup interfaces, and this interface is not pulled out, and its main interface is not pulled out, interface 3 is with role's work of backup interface, and the controll block of interface 3 is preserved the sign of its main interface controll block.
Because interface 1, interface 3 with role's work of main interface and backup interface, when backup center is received the notice of interface management Interface status variation, can be realized the function of interface backup by the mechanism of introducing in the background technology respectively.
Prior art is when carrying out this step operation, in the configuration file that can executive system about the record of the configuration section of interface 1, the related command of this record shows that interface 2 and interface 3 are backup interfaces of interface 1, but when carrying out these orders since interface 2 be not plugged, so backup center in fact can not get interface 2 to be made as the order of the backup interface of interface 1.
(6) carry out the operation of inserting interface 2: backup center at first obtains the notice " interface 2 is inserted into " of interface management, backup center finds the controll block of interface 2, thereby know that interface 2 is backup interfaces, interface 1 is that the main interface of interface 2 is not pulled out, mechanism and interface 1 that backup center can provide according to background technology, the standing state of interface 2 and interface 3, the state of docking port 2 and interface 3 adjusts, the notification interface management is opened or down interface 3, need to revise interface 1 simultaneously, the state of the controll block of interface 2 and interface 3, amended state is as follows: the record of the controll block of main interface 1 shows that this controll block belongs to interface 1, interface 1 is a main interface, this interface is not pulled out, this interface has two backup interfaces, and all be not pulled out, interface 1 is with role's work of main interface, and the controll block of main interface 1 is preserved the sign of the controll block of backup interface 2, also preserves the sign of the controll block of backup interface 3; The record of the controll block of backup interface 2 shows that this controll block belongs to interface 2, interface 2 is backup interfaces, and this interface is not pulled out, and its main interface is not pulled out, interface 2 is with role's work of backup interface, and the controll block of interface 2 is preserved the sign of its main interface controll block; The record of the controll block of backup interface 3 shows that this controll block belongs to interface 3, interface 3 is backup interfaces, and this interface is not pulled out, and its main interface is not pulled out, interface 3 is with role's work of backup interface, and the controll block of interface 3 is preserved the sign of its main interface controll block.
Because interface 1, interface 2 and interface 3 with role's work of main interface and backup interface, when backup center is received the notice of interface management Interface status variation, can be realized the function of interface backup by the mechanism of introducing in the background technology respectively.
Because according to the writing function of controll block, system can access the backup relation between the current interface,, after extracting and insert interface 1 and interface 2, be restored about the configuration of backing up according to top introduction.
When prior art was operated in this step of execution, in can the configuration file of executive system about the record (related command of this record shows that interface 2 and interface 3 are backup interfaces of interface 1) of the configuration section of interface 1, only can carry out the record of configuration file about the configuration section of interface 2, the backup interface that interface 2 is interfaces 1 do not described in this record, so backup center in fact still can not get interface 2 to be made as the order of the backup interface of interface 1.So this moment, configuration loss can not recover automatically when more during new configuration file, finding that interface 2 no longer is the backup interface of interface 1 from the real data of backup center.
In the present invention, interface controll block is to a kind of concentrated preservation of related data information and the mode of management, so the information of controll block can be stored in backup center, also fully can distributed and saved in system's existed data system.
Claims (10)
1, the method for the enterprising line interface backup of a kind of system in the supporting interface hot plug, described system has backup center and interface management module, and the interface status information that this backup center obtains according to the interface management module realizes interface backup; It is characterized in that comprising step:
Described system is that interface is created the controll block that is used to write down relevant interface backup information;
Safeguard described controll block by backup center, and in controll block the corresponding interface state that reports of updating interface administration module dynamically; And
When after interface is pulled out, turning back to again, the configuration about backing up before backup center is extracted from the controll block restoration interface of this interface correspondence.
2, the method for claim 1 is characterized in that, a controll block is created for each interface by system when initial.
3, the method for claim 1 is characterized in that, just creates controll block for this interface when specifying an interface to become main interface or backup interface.
4, method as claimed in claim 3 is characterized in that, when main interface or backup interface become to neither the controll block that main interface is deleted this interface neither backup interface the time.
5, the method for claim 1 is characterized in that, described each controll block has unique controll block sign.
6, method as claimed in claim 5 is characterized in that, the controll block of each main interface correspondence writes down the controll block sign about all backup interfaces of all information of interface backup and this main interface that disposes on this main interface.
7, method as claimed in claim 5 is characterized in that, the controll block of each backup interface correspondence writes down the controll block sign of the main interface of this backup interface.
8, method as claimed in claim 6 is characterized in that, after main interface is pulled out, according to the interface backup information of this main interface controll block record, all backup interfaces that are not pulled out of this main interface is opened.
9, method as claimed in claim 8 is characterized in that, after main interface inserted, work was carried out in the configuration before all backup interfaces that are not pulled out of this main interface and main interface are extracted according to main interface.
10, the method for claim 1 is characterized in that, described controll block can be kept at backup center or distributed and saved in the data structure system of system.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB031592198A CN100346607C (en) | 2003-09-02 | 2003-09-02 | Method for interface back-up in interface hot connect-disconnect supporting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB031592198A CN100346607C (en) | 2003-09-02 | 2003-09-02 | Method for interface back-up in interface hot connect-disconnect supporting system |
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| CN1592222A CN1592222A (en) | 2005-03-09 |
| CN100346607C true CN100346607C (en) | 2007-10-31 |
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| CNB031592198A Expired - Fee Related CN100346607C (en) | 2003-09-02 | 2003-09-02 | Method for interface back-up in interface hot connect-disconnect supporting system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100459515C (en) * | 2005-12-27 | 2009-02-04 | 迈普（四川）通信技术有限公司 | Preservation method of hot swab board configuration |
| CN102043868B (en) * | 2010-12-24 | 2013-04-24 | 华中科技大学 | Method for supporting hot plugging of intelligent acquisition terminal |
| CN103701653B (en) * | 2014-01-06 | 2016-09-07 | 迈普通信技术股份有限公司 | The processing method of a kind of interface hot plug configuration data and network configuration server |
| CN105634762B (en) * | 2014-10-27 | 2021-10-15 | 中兴通讯股份有限公司 | Router configuration method, router control device and communication system |
| CN105094010B (en) * | 2015-07-01 | 2018-04-27 | 国家电网公司 | A kind of protective relaying device plug and play management method and system |
| CN110347531A (en) * | 2019-07-05 | 2019-10-18 | 湖南省华芯医疗器械有限公司 | A kind of machine hot plug working method and system avoiding loss of data |
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| US5408462A (en) * | 1993-10-07 | 1995-04-18 | Adc Telecommunications, Inc. | Protection switching apparatus and method |
| JPH11163891A (en) * | 1997-11-28 | 1999-06-18 | Nec Corp | Uninterruptible switching system for atm switch |
| CN1420434A (en) * | 2001-11-16 | 2003-05-28 | 深圳市中兴通讯股份有限公司上海第二研究所 | Board stage supporting packet simulation method |
| WO2003054713A2 (en) * | 2001-12-19 | 2003-07-03 | Intel Corporation | Hot plug interface control method and apparatus |
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- 2003-09-02 CN CNB031592198A patent/CN100346607C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5408462A (en) * | 1993-10-07 | 1995-04-18 | Adc Telecommunications, Inc. | Protection switching apparatus and method |
| JPH11163891A (en) * | 1997-11-28 | 1999-06-18 | Nec Corp | Uninterruptible switching system for atm switch |
| CN1420434A (en) * | 2001-11-16 | 2003-05-28 | 深圳市中兴通讯股份有限公司上海第二研究所 | Board stage supporting packet simulation method |
| WO2003054713A2 (en) * | 2001-12-19 | 2003-07-03 | Intel Corporation | Hot plug interface control method and apparatus |
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