CN107318121A - A kind of data back up method for LTE EPC systems - Google Patents
A kind of data back up method for LTE EPC systems Download PDFInfo
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- CN107318121A CN107318121A CN201710527076.3A CN201710527076A CN107318121A CN 107318121 A CN107318121 A CN 107318121A CN 201710527076 A CN201710527076 A CN 201710527076A CN 107318121 A CN107318121 A CN 107318121A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
Abstract
The present invention provides a kind of data back up method for LTE EPC systems, two EPC systems, main EPC system and standby EPC system is set, wherein having EPC modules and OpenSAF modules, the network equipment；Main EPC system starts during all processes of EPC, when there is terminal to have business operation, then each process is in the corresponding each pieces number of data Cun Chudao for needing to back up, Backup Data is sent to OpenSAF, standby EPC system starts after EPC, the data of main EPC system backup are then received, each process, which is received, will take out data and reduce according to piece number after message；If standby EPC system does not start EPC processes, OpenSAF preserves the data of each process backup；To each block number according to the unique piece number of correspondence, when certain a piece of number backup n times, final reduction is once；Backup number of times is reduced, hot standby and cold standby is supported, backs up in realtime, incremental backup and monolithic backup function are realized to data structure, backup storage efficiency is improved.
Description
Technical field
The invention belongs to the communications field, it is related to a kind of data back up method for LTE EPC systems.
Background technology
With the fast development of the communication technology, enterprise uses the core data of computer disposal oneself, due to LTE (Long
Term Evolution, Long Term Evolution) there is the spies such as high-speed, wide covering, low time delay, concurrent many, high stable, quick movement
Property, it is very high to business continuance, real-time and stability requirement, to improve operating efficiency, reducing data disaster risk, reduction dimension
Cost, enhanced quality-of-service are protected, continues not interrupt for guarantee business, and invents the data back up method of LTE EPC systems.
The content of the invention
The present invention provides one kind in EPC (Evolved Packet Core:Evolution block core net) data backup in system
Method, there are abnormal conditions to solve EPC system, cause the scene communication systems such as track traffic, civil aviaton, colliery interrupt ask
Topic.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of data back up method for LTE EPC systems, including main EPC system, standby FPC systems, three interchangers,
The main EPC system and standby EPC system install EPC softwares；, EPC softwares include MME modules, XGW modules, main modules,
Trans modules and OpenSAf modules, MME modules, XGW modules, main modules, trans modules connect with OpenSAf modules respectively
Connect；Main EPC system and standby EPC system are provided with three network interfaces, are connected respectively by three network interfaces with three interchangers, three
One in interchanger is connected with base station, and one is connected with server；
When the data of backup find change, the data of main EPC system are backed up to OpenSAF modules, OpenSAF modules will
Data storage and by OpenSAF modules on network backup to standby EPC system, which process is OpenSAF modules be by judging
Data, data are dealt into corresponding module, each module receives message solution packet, and restoring data.
Data backup is divided into two kinds of situations, and one kind is cold standby, after starting when standby EPC system needs, main EPC system handle
The data of all backups backup to standby EPC system, and standby EPC system is switched to when required；One kind is Hot Spare, main EPC systems
After system starts, standby EPC system also starts, and standby EPC system keeps synchronous with main EPC system.When main frame failure, it can open at any time
Replaced with hot-standby server.
When the main EPC system, standby EPC system startup go into operation, XGW modules need to receive after mian module messages, XGW moulds
Block sends out the message that goes into operation to trans modules, while XGW modules normally go into operation；
Backup Data is needed in MME modules or XGW modules, MME modules or XGW modules can be triggered by the data of backup
Main EPC system OpenSAF modules are issued in packing, and the OpenSAF modules of main EPC system issue standby EPC system by network
OpenSAF modules, the OpenSAF modules of standby EPC system receive data by processing, relay to corresponding module, corresponding
Scheduler module receives restoring data after data.
If the main EPC system of monitoring goes wrong or restarts or the abnormal conditions such as power off, OpenSAF is switched to for EPC
System, the service switching such as ATTACH DETACH TAU SR X2S1HO to standby EPC system, standby EPC system becomes as main EPC system.
Moreover, after the main EPC system starts, having after the access of base station, triggering MME modules back up eNodeB and SCTP respectively
Business datum, and back up data to the MME modules of standby EPC system.
Moreover, after the main EPC system starts, have after terminal access, triggering MME modules and XGW modules back-up terminals and
The business datum in tunnel, and back up data to standby EPC system MME modules and XGW modules.
Moreover, described set up dedicated bearing according to configuration, after UE accesses, triggering MME modules and XGW modules back-up terminals,
The relevant information of dedicated bearing, tunnel, and back up data to standby EPC system MME modules and XGW modules.
Moreover, described by calling HaBackupSctpData () and HaBackupSzData () function backup eNodeB
Information, then the former information using szOspMsgProc () reduction backups eNodeB.
Moreover, it is described by call HaBackupUeData (), HaBackupCCEnbData () and
HaBackupBrData () function backup UE information, then the former information using CcOspMsgPreProc () reduction backups UE.
Moreover, the information by calling HaBackupXgwData () function backup tunnel, then original are used
GtpuHaRevertData () reduces the information of backup tunnel.
The main of technical solution of the present invention is improved to：
1. using the present invention program, increase data can be with incremental backup.
2. data convert has increase, deleted and modification operation, first judge whether there are data when addition is operated, if
Then when renewal is handled；Otherwise when addition is handled.It is to update operation first to judge whether there are data, is first added if without if
Processing；Otherwise renewal is handled.
3. system can recover all business in 400ms.
4. upon handover, first remove main EPC system SGW and PGW IP, in the IP with the EPC system SGW and PGW that purchase.
The technical scheme is relative to the advantage of other Integrated Solutions：
For relative thermal is for integrated scheme, the present invention using burst backup, per it is a piece of can be complete to a certain data structure
Office's backup can have very big flexibility with incremental backup again；Each module has up to ten million pieces, and each piece has a volume
Number, data storage is placed in fixed numbering, when a certain data variation is very frequent, it is possible to achieve OpenSAF modules last time
Standby EPC system is backuped to, backup number of times is reduced.
For relative thermal is for integrated scheme, the present invention can back up the data of up to ten million pieces, and each module has thousands of
Ten thousand pieces.
Therefore, the present invention realizes that conveniently, backup data quantity is big, high efficiency, high stability, with important market value,
It is that guarantee business continues not interrupt most practical plan.
Brief description of the drawings
Fig. 1 is the theory diagram of the present invention.
110-UE, 120-LTE base station, the 130-the first interchanger, 131-second switch, 132-3rd switch,
140-main EPC system, 141-OpenSAf modules, 142-MME modules, 143-XGW modules, 144-main modules, 145-
Trans modules, the network interface 3 of network interface 2,148-main EPC system of network interface 1,147-main EPC system of 146-main EPC system,
150-standby EPC system, 156-from the network interface 1,157 of EPC system-from the network interface 2,158 of EPC system-from the net of EPC system
Mouth 3,160-server.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
As shown in figure 1, being that there is provided a kind of method in EPC system data backup for one embodiment of the present of invention.
The platform of technical solution of the present invention operation supports the linux operating systems of OpenSAF modules for kernel.Embodiment
In, main EPC system 140 and standby EPC system 150 are arranged on the linux main frames of centos6.5 systems, and have successfully loaded
OpenSAF kernel modules.In the present invention program, advocate peace standby EPC system MME modules, XGW modules, main modules, trans moulds
Block and OpenSAf modules will be run simultaneously.Main EPC system 140 is to do business, and standby EPC system 150 does not do business, only receives master
The data that EPC system 140 is backed up；Main EPC system 140 uses netting twine 4 by network interface 1 (146), passes through interchanger 131 and standby EPC
The network interface 1 (156) of system 150 is communicated, and realizes data backup.
ENodeB (120) is LTE base station, is that ue (110) provides wireless coverage and information transmission, this reality within the specific limits
Apply in example, main EPC system 140 and standby EPC system 150 are connected with eNodeB (120) using same IP address position
172.16.137.56, the ip of main EPC system 140 is set to 172.16.137.56, what the IP of standby EPC system 150 was to turn off, does not have
There is ip.
Main EPC system 140 and standby EPC system 150 are connected with server (160) and are using same IP address
172.16.114.200, the IP of main EPC system 140 is set to 172.16.114.200, what the IP of standby EPC system 150 was to turn off,
There is no IP.
ENodeB (120) is that LTE base station is first connected with the foundation of main EPC system 140, walks regular traffic flow；Standby EPC system
Operation flow is not walked after 145 initialization, when main EPC system 140 is switched to standby EPC system 150, main EPC system 140 is first closed
Network interface 2 (147) and network interface 3 (148), are reconfigured at the main network interface 2 (157) of EPC system 150 and network interface 3 (158), receive main modules
After 154 message, XGW modules 153 start the request that goes into operation, while notifying trans modules 155 to start working.
EPC software function codes are installed on main EPC system 140 and standby EPC system 150 to be needed at " XGW go into operation request "
" MME go into operation request " two parts make modification processing.
Modification " XGW the go into operation request " part, refers to that on active/standby server EPC programs go into operation when asking, is revised as
Receive and gone into operation after the message of main modules, while sending the message that goes into operation to trans modules.
Modification " MME the go into operation request " part, S1 processes receive the correlation whether reading parameter after message initializes S1
Information.
EPC softwares are installed, function code needs at " XGW module datas backup and reduction " and " backup of MME module datas is also
Original " two parts make modification processing.
Described modification " MME module datas backup and reduction " part, the MME module datas of main EPC system backup to standby EPC systems
System, standby EPC system MME modules are by data convert.
When eNodeB is accessed.Concrete operations are：At the end of a certain flow, the MME modules of main EPC system call backup
After group of functions bag, data are sent out after sending data, main EPC system OpenSAF resume modules to main EPC system OpenSAF modules
To standby EPC system OpenSAF modules, message is then sent out to standby EPC system when standby EPC system OpenSAF modules there are data to update
MME modules, MME modules unpack and preserve data.
The backup function group bag, backup function will be called by referring to the MME module interfaces of main EPC system, fill in task number,
Piece number, data length, data type, Data Identification, sync id and synchrodata.
Described unpacking simultaneously preserves data, is the data that standby EPC system receives main EPC system, according to task number, a certain
Receive the data of backup under task, line obtains piece number, according to piece number corresponding data convert into corresponding data structure.
Embodiment is specifically comprised the following steps：
Pass through HaBackupUeData (CC_UE_STRUCT_TYPE, ueNum, ueIndex, (＆gp_CcCb->
UeCbList [ueIndex], sizeof (CcUeCb)) backup ueIndex data,
Osp_send_ha_data_msg (OspHaMsg) is called after completion group bag；Function sends out OspHaMsg data structures
Give OpenSAF modules.
Standby EPC system OpenSAF modules are received after message, send message to corresponding dtaskid, MME modules, which are received, to disappear
Piece number, data length, data type, Data Identification, sync id, in memcpy () data to corresponding data are first solved after breath
In structure, data backup is completed
Described modification " XGW module datas backup and reduction " part, the XGW module datas of main EPC system backup to standby EPC systems
System, standby EPC system XGW modules are by data convert.
When eNodeB is accessed.Concrete operations are：It is cunicular to set up, operation, the XGW of main EPC system is deleted or modified
Module is called after backup function group bag, is sent to main EPC system OpenSAF modules at data, main EPC system OpenSAF modules
Data are issued into standby EPC system OpenSAF modules after reason, when standby EPC system OpenSAF modules have data update then hair message to
The XGW modules of standby EPC system, XGW modules unpack and preserve data, while needing the operation to three RBTrees.
The backup function group bag, backup function will be called by referring to the XGW module interfaces of main EPC system, fill in task number,
Piece number, data length, data type, Data Identification, sync id and synchrodata.
Described unpacking simultaneously preserves data, is the data that standby EPC system receives main EPC system, according to task number, a certain
Receive the data of backup under task, line obtains piece number, according to piece number corresponding data convert into corresponding data structure.
Embodiment is specifically comprised the following steps：
Pass through HaBackupXgwData (GTPU_INFO_STRUCT_TYPE, EPC_MSG_UPDATE, * pPos, (u8*)
PTunnelInfo, sizeof (TGtpuTunnelInfo)) backup TGtpuTunnelInfo data,
Osp_send_ha_data_msg (OspHaMsg) is called after completion group bag；Function sends out OspHaMsg data structures
Give OpenSAF modules.
Standby EPC system OpenSAF modules are received after message, send message to corresponding dtaskid, XGW modules, which are received, to disappear
Piece number, data length, data type, Data Identification, sync id, in memcpy () data to corresponding data are first solved after breath
In structure, data backup is completed, while the operation according to type parameters to three RBTrees.
The operation of three RBTrees, refers to be added RBTree, changes and deletion action.
Finally, when main EPC system occurs abnormal, main EPC system is switched to standby EPC system by OpenSAF modules, standby
EPC system becomes as main EPC system, and main EPC system is changed into standby EPC system.
When it is implemented, those skilled in the art can realize above technical scheme using software mode, you can realize main EPC
The data automatic synchronization of the data of system and standby EPC system, it is ensured that main EPC system occur abnormal conditions can seamlessly switch to it is standby
EPC system.The present invention can reduce data disaster risk, reduction maintenance cost, enhanced quality-of-service, during guarantee business continues not
It is disconnected.
Main EPC system 140 and standby EPC system 150 are same set of software, and hardware can be unified to configure, the realization of embodiment
It is as follows：
When main EPC system starts initialization, main EPC system starts according to normal flow；Standby EPC system starts initialization,
Partial parameters are without initialization in MME, and XGW modules will send message to trans；
The MME modules of main EPC system are called after backup function group bag, standby EPC system is dealt into by OpenSAF modules
MME modules, call reduction group of functions to unpack, realize data backup；
The XGW modules of main EPC system are called after backup function group bag, standby EPC system is dealt into by OpenSAF modules
XGW modules, call reduction group of functions to unpack, data backup are realized, while being operated accordingly to three RBTrees.
Implement it is consistent with software realization mode, the present invention it will not go into details.
Related symbol implication see the table below 1：
Table 1 is ordered and character lexical or textual analysis
The foregoing is only one of embodiments of the invention, be not intended to limit the invention, it is all the present invention principle it
Interior made any modifications, equivalent substitutions and improvements etc., should be included in the scope of the protection.
Claims (9)
1. a kind of data back up method for LTE EPC systems, it is characterised in that：Including main EPC system, standby EPC system；When
When the data of backup change, the data of main EPC system are backed up in realtime to standby EPC system by OpenSAF modules
Data are dealt into corresponding module and solve packet restoring data by OpenSAF modules, OpenSAF modules.
2. a kind of data back up method for LTE EPC systems according to claim 1, it is characterised in that：The master
EPC system, standby EPC system include MME modules, XGW modules, main modules, trans modules and OpenSAf modules.
3. a kind of data back up method for LTE EPC systems according to claim 2, it is characterised in that：MME moulds
When needing Backup Data in block or XGW modules, MME modules or XGW modules can be triggered by the data group bag of backup to main EPC
System OpenSAF modules, the OpenSAF modules of main EPC system issue the OpenSAF modules of standby EPC system by network, standby
The OpenSAF modules of EPC system receive data by processing, are transmitted to corresponding module, and respective modules are received and reduced after data
Data.
4. a kind of data back up method for LTE EPC systems according to claim 2, it is characterised in that：The master
EPC system module goes wrong or restarted or powering-off state, and OpenSAF is switched to standby EPC system, ATTACH DETACH TAU
SR X2 S1HO service switchings are to standby EPC system, and standby EPC system change is main EPC system.
5. a kind of data back up method for LTE EPC systems according to claim 2, it is characterised in that：The master
After EPC system starts, have after the access of base station, triggering MME modules back up eNodeB and UE business datum respectively, and data are standby
Part arrives the MME modules of standby EPC system.
6. a kind of data back up method for LTE EPC systems according to claim 2, it is characterised in that：The master
After EPC system starts, have after terminal access, triggering MME modules and XGW module back-up terminals business datums, and by data backup
To standby EPC system MME modules and XGW modules；After terminal access, triggering MME modules and XGW modules back-up terminals, dedicated bearing
Relevant information, and back up data to standby EPC system MME modules and XGW modules.
7. a kind of data back up method for LTE EPC systems according to claim 2, it is characterised in that：The number
Include two kinds of situations according to backup, one kind is cold standby, after starting when standby EPC system needs, main EPC system is all backups
Data backup to standby EPC system, and standby EPC system is switched to when required；One kind is Hot Spare, standby after main EPC system starts
EPC system also starts, and standby EPC system keeps synchronous with main EPC system.
8. a kind of data back up method for LTE EPC systems according to claim 2, it is characterised in that：It is each whole
Data one unique memory space of correspondence at end, when multiple data variation occurs for some UE data, reverts to standby EPC system
Last time last time, improves backup efficiency.
9. a kind of data back up method for LTE EPC systems according to claim 2, it is characterised in that：
By calling HaBackupSctpData（）And HaBackupSzData（）Function backup eNodeB information, then original are used
szOspMsgProc（）Reduce backup eNodeB information；
By calling HaBackupUeData（）、HaBackupCCEnbData（）And HaBackupBrData（）Function backup UE
Information, then original uses CcOspMsgPreProc（）Reduce backup UE information；
By calling HaBackupXgwData（）The information of function backup tunnel, then original use GtpuHaRevertData（）Also
The information of former backup tunnel.
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| CN107318121B (en) | 2020-11-20 |
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