CN102255741B - User service information backup method and device - Google Patents
User service information backup method and device Download PDFInfo
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- CN102255741B CN102255741B CN201010179028.8A CN201010179028A CN102255741B CN 102255741 B CN102255741 B CN 102255741B CN 201010179028 A CN201010179028 A CN 201010179028A CN 102255741 B CN102255741 B CN 102255741B
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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
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/58—Association of routers
- H04L45/586—Association of routers of virtual routers
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Abstract
The invention discloses a kind of user service information backup method and device, the method comprises: connected between active and standby service node by predetermined protocol, and handling capacity consult determine active and standby service node need separately back up type of service after, the activestandby state of this connection and active and standby service node is carried out real time correlation; Working traffic node is when user service information changes, encapsulated with the user service information that standby traffic node needs the type of service that backs up corresponding by predetermined format according to activestandby state, and the user service information of different service types is identified; User service information after encapsulation is sent to standby traffic node by this connection, backs up according to the user service information after encapsulation to make standby traffic node.By technique scheme, can ensure that fellow users business information realizes redundancy backup at the equipment room of different platform, and achieve the user service information using uniform protocol backup multiple business.
Description
Technical field
The present invention relates to communication field, particularly relate to a kind of user service information backup method and device.
Background technology
Service node (Service Node, referred to as SN) also can be called customer service control appliance, such as broadband remote access servers (Broadband Remote Access Server, referred to as BRAS) or business router (Service Router, referred to as SR) etc., along with the number of users by SN access band get more and more and the requirement of broadband user to broadband high reliability more and more higher, the requirement that operator accesses user ID is also more and more higher.Therefore, user profile redundancy technique has been widely used between SN.
In the prior art, user ID technology refers to two-node cluster hot backup or multiple-node backup, access node (Access Node, referred to as AN) access multiple up SN, the access interface of primary SN and the backup port one_to_one corresponding of SN for subsequent use, active and standby SN adopts Virtual Router Redundacy Protocol (Virtual RouterRedundancy Protocol, referred to as VRRP) and two-way converting detect (Bidirectional ForwardingDetection, referred to as BFD) technology carry out switching state.Primary SN is synchronized to SN for subsequent use access user information, and this user profile, when receiving the user profile that primary SN transmits, is issued to interface module in the mode of subscriber's meter by SN for subsequent use at once.When the link failure of the access interface access user of primary SN, SN for subsequent use switches to primary SN, customer flow switches simultaneously, and after switching, the up-downgoing flow of user is all forwarded by SN for subsequent use, and SN for subsequent use carries out control and management based on the user's information Business Stream backed up.
At present; prior art is the backup of the user service information of the single business realized at the equipment room based on same software platform; carry out simple memory information copy at equipment room or copy one by one according to the formal definition of this software platform to user service information, thus realizing the function of redundancy protecting at different equipment rooms.The technical scheme of prior art can only carry out the redundancy backup of user service information at the equipment room based on same software platform, the redundancy backup of user service information cannot be realized at the equipment room of different vendor or same manufacturer different software platforms, the deployment of operator is limited larger.
In addition, technical scheme of the prior art only achieves a kind of backup of user service information of business, but in actual applications, for other business, also likely there is the situation of key business information needs at backup between equipment, thus need to carry out copy backup to different internal memories, now, if use existing technical scheme, a kind of business just needs a kind of agreement, causes the scalability of equipment very poor.
Summary of the invention
The invention provides a kind of user service information backup method and device, the user service information of redundancy backup and backup multiple business that the equipment room in order to solve different software platforms in prior art cannot realize user service information needs to use the problem of different agreement.
The invention provides a kind of user service information backup method, comprising:
Connected between active and standby service node by predetermined protocol, and handling capacity consult determine active and standby service node need separately back up type of service after, the activestandby state of this connection and active and standby service node is carried out real time correlation;
Working traffic node is when user service information changes, encapsulated with the user service information that standby traffic node needs the type of service that backs up corresponding by predetermined format according to activestandby state, and the user service information of different service types is identified;
User service information after encapsulation is sent to standby traffic node by this connection, backs up according to the user service information after encapsulation to make standby traffic node.
Present invention also offers a kind of user service information back-up device, comprising:
Set up module, for being connected between active and standby service node by predetermined protocol;
Negotiation module, consults to determine that active and standby service node needs the type of service backed up separately for handling capacity;
Relating module, for carrying out real time correlation by the activestandby state of above-mentioned connection and active and standby service node;
Package module, for when the user service information of working traffic node changes, encapsulated with the user service information that standby traffic node needs the type of service that backs up corresponding by predetermined format according to activestandby state, and the user service information of different service types is identified;
Sending module, for sending to standby traffic node by the user service information after encapsulation by above-mentioned connection;
Backup module, for backing up according to the user service information after encapsulation.
Beneficial effect of the present invention is as follows:
By means of technical scheme of the present invention, by unified agreement at service node backup between equipment user service information, and determine by the negotiation of equipment room the user type needing backup, the user service information of redundancy backup and backup multiple business that the equipment room solving different software platforms in prior art cannot realize user service information needs to use the problem of different agreement.Can ensure that fellow users business information realizes redundancy backup at the equipment room of different platform, decrease the restriction of operator's deployed with devices, and achieve the user service information using uniform protocol backup multiple business, enhance the scalability of equipment.
Accompanying drawing explanation
Fig. 1 is the flow chart of the user service information backup method of the embodiment of the present invention;
Fig. 2 is the flow chart of the detailed process of the user service information backup method of the embodiment of the present invention;
Fig. 3 is the structural representation of the user service information back-up device of the embodiment of the present invention;
Fig. 4 is the schematic diagram of the network topology structure of the embodiment of the present invention.
Embodiment
The user service information of the redundancy backup and backup multiple business that cannot realize user service information in order to the equipment room solving different software platforms in prior art needs to use the problem of different agreement, the invention provides a kind of user service information backup method and device, below in conjunction with accompanying drawing and embodiment, the technical scheme of the embodiment of the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, do not limit the present invention.
Embodiment of the method
According to embodiments of the invention, provide a kind of user service information backup method, Fig. 1 is the flow chart of the user service information backup method of the embodiment of the present invention, and as shown in Figure 1, the user service information backup method according to the embodiment of the present invention comprises:
Step 101, is connected between active and standby service node by predetermined protocol, and after handling capacity consults to determine that active and standby service node needs the type of service backed up separately, carries out real time correlation by connecting with the activestandby state of active and standby service node; Preferably, above-mentioned predetermined protocol can be one of following: transmission control protocol, User Datagram Protocol, reliable user data packet protocol.That is, backup protocol (i.e. above-mentioned predetermined protocol) the transport layer suggestion between active and standby SN uses transmission control protocol, but is not restricted to use transmission control protocol, also can use User Datagram Protocol or reliable user data packet protocol.
In a step 101, particularly, need between active and standby service node, to set up the connection with specific purpose port numbers by predetermined protocol, wherein, specific purpose port numbers is for identifying predetermined protocol.That is, when transmitting user service information between service node, adopt specific purpose port as the mark of backup protocol (above-mentioned predetermined protocol).
In addition, the mode can transmitting to the other side the user service information that both sides support by active and standby service node determines that active and standby service node needs the type of service backed up separately.That is, after a connection setup, when active and standby SN consults the type of service supporting backup, active and standby SN only transmits the business information that both sides support.
Step 102, working traffic node is when user service information changes, encapsulated with the user service information that standby traffic node needs the type of service that backs up corresponding by predetermined format according to activestandby state, and the user service information of different service types is identified; Preferably, above-mentioned predetermined format is Type Length numerical value (Type Length Value, referred to as TLV) form.
In a step 102, can be identified by the different type in TLV the user service information of different service types, also can be identified by sub-TLV (SUB-TLV) the different child user business information of same type of service.
Owing to adopting unified agreement and unified mark, therefore transferable type of user information can be consulted between the SN equipment of different equipment manufacturer.
In a step 102, in all normal situation of the state of active and standby service node, adopt the mode of real time information backup to be encapsulated with the user service information that standby traffic node needs the type of service that backs up corresponding by predetermined format, and the user service information of different service types is identified; After former working traffic one malfunctions generation master/slave switchover, former working traffic node state recover and with current working traffic node re-establish be connected when, adopt the mode of bulk information backup to be encapsulated with the user service information that standby traffic node needs the type of service that backs up corresponding by predetermined format, and the user service information of different service types is identified.
That is, the technical scheme of the embodiment of the present invention can support real time information backup or bulk information backup, in all normal situation of active and standby SN state, adopt real time information for subsequent use comparatively suitable, when former primary SN equipment breaks down discovery master/slave switchover, former primary SN equipment state is recovered and is re-established after TCP is connected with current primary SN equipment, and the method adopting bulk information to back up is comparatively suitable.
Step 103, sends to standby traffic node by the user service information after encapsulation by connection, backs up according to the user service information after encapsulation to make standby traffic node.
Particularly, in step 103, standby traffic node carries out backup needs according to the user service information after encapsulation and is handled as follows: first, and standby traffic node judges the type of service belonging to the user service information after encapsulation according to the type in TLV; Subsequently, standby traffic node carries out corresponding backup operation according to type of service to user service information.After type of service belonging to user service information after standby traffic node judges encapsulation according to the type in TLV, if standby traffic node judges that type of service belongs to standby traffic and saves the type of service do not supported, standby traffic node ignores the user service information after encapsulation.
As can be seen from above-mentioned process, the technical scheme of the embodiment of the present invention adopts unified agreement and TLV form at the key message of SN backup between equipment business of the same race, comprise wide band access user information, equipment room can adopt the method for capability negotiation to decide which information and can back up, thus fully ensure that fellow users data realize redundancy backup at the equipment room of different software platforms different vendor.
Below in conjunction with accompanying drawing, be described in detail to the technical scheme of the embodiment of the present invention, Fig. 2 is the flow chart of the detailed process of the user service information backup method of the embodiment of the present invention, as shown in Figure 2, comprises following process:
Step 201, the service backup module of SN sets up the TCP connection of specific purpose port numbers between active and standby SN, and active and standby SN handling capacity consults the type of service confirming can back up separately;
Step 202, after handling capacity consults to confirm the type of service that can back up separately, connects TCP and carries out real time correlation with the activestandby state of SN equipment;
Step 203, when the user service information of main SN changes, such as add/delete/when refreshing, the form of the user service information of corresponding business by TLV encapsulates by the service backup module of current primary SN, and different user service informations utilizes different TYPE to identify;
Step 204, the information after encapsulation is sent to SN for subsequent use by above-mentioned TCP connection by the service backup module of primary SN;
Step 205, the service backup module of SN for subsequent use is after receiving the message sent by above-mentioned TCP connection, different business is distinguished according to the TYPE in TLV, and different user service informations is distributed to local service module, local service module adds/deletion/refresh operation accordingly according to the respective user business information of the information received to this locality.
Below in conjunction with example, the technique scheme of the embodiment of the present invention is illustrated.
Example 1, backing up in realtime of user service information.
Step 1, negotiates main and standby relation by VRRP agreement and BFD between two SN equipment;
Step 2, between active and standby SN equipment, set up TCP connect, after negotiating at active and standby SN equipment the information needing to back up broadband user, TCP is connected and is associated with VRRP activestandby state, such as, by BFD mechanism, the connectedness of SN activestandby state and SN equipment state, SN equipment and down link is carried out real time correlation;
Step 3, when the business information of user's going on line or off line or online user occurs to change, the user service information of the interpolation/deletion/refreshing of correspondence is encapsulated by the form of the TLV of specific T ype by current primary SN, and different business information utilizes different types to identify;
Step 4, the information after encapsulation is sent to SN for subsequent use by above-mentioned TCP connection by primary SN;
Step 5, SN for subsequent use is after receiving and connecting by above-mentioned TCP the message sent, and it is user profile that service backup block region separates, and the user service information of notice user management module to this locality add accordingly/delete/refresh.
Example 2, the batch backup of user profile.
Step 1, when former primary SN device fails or SN equipment and down link connectedness break down, active and standby SN equipment finds fault by BFD mechanism and fast by the switching of the active and standby SN state of VRRP protocol realization;
Step 2, former SN equipment for subsequent use becomes master state, and utilizes the user service information backed up before this to carry out control and management to customer service;
Step 3, former primary SN equipment state recover and and set up VRRP neighbours, BFD peer-to-peer and the TCP annexation in order to user service information for subsequent use between current primary SN equipment;
Step 4, temporarily former primary SN equipment is set to stand-by state, current primary SN equipment starts to connect Batch sending user service information with TLV form by above-mentioned TCP, when user service information batch backup completes, current primary SN sends batch backup to former primary SN and completes message, and starts the switching of VRRP activestandby state;
Step 5, the primary SN equipment after switching carries out control and management according to the user service information of batch backup to customer service.
By means of technical scheme of the present invention, can ensure that fellow users business information realizes redundancy backup at the equipment room of different platform, decrease the restriction of operator's deployed with devices, and achieve the user service information using uniform protocol backup multiple business, enhance the scalability of equipment.
Device embodiment
According to embodiments of the invention, provide a kind of user service information back-up device, this device can be positioned at service node, Fig. 3 is the structural representation of the user service information back-up device of the embodiment of the present invention, as shown in Figure 3, comprise according to the service node active-standby switch device of the embodiment of the present invention: set up module 30, relating module 31, negotiation module 32, package module 33, sending module 34 and backup module 35.
Before the service node active-standby switch device of the embodiment of the present invention is described in detail, first the network topology structure involved by the embodiment of the present invention is described, Fig. 4 is the schematic diagram of the network topology structure of the embodiment of the present invention, as shown in Figure 4, primary SN and SN for subsequent use is between upper layer network and lower floor's network, establish main and standby relation in advance between primary SN and SN for subsequent use, user needs to be accessed by SN.
Below the service node active-standby switch device of the embodiment of the present invention is described in detail.
Particularly, module 30 is set up for being connected between active and standby service node by predetermined protocol; Above-mentioned predetermined protocol can be one of following: transmission control protocol, User Datagram Protocol, reliable user data packet protocol.That is, backup protocol (i.e. above-mentioned predetermined protocol) the transport layer suggestion between active and standby SN uses transmission control protocol, but is not restricted to use transmission control protocol, also can use User Datagram Protocol or reliable user data packet protocol.Set up module 30 to need between active and standby service node, to set up the connection with specific purpose port numbers by predetermined protocol, wherein, specific purpose port numbers is for identifying predetermined protocol.That is, when transmitting user service information between service node, set up module 30 and adopt specific purpose port as the mark of backup protocol (above-mentioned predetermined protocol).
Negotiation module 32 consults to determine that described active and standby service node needs the type of service backed up separately for handling capacity; The activestandby state of above-mentioned connection and described active and standby service node, for after the negotiation of negotiation module 32 handling capacity determines that described active and standby service node needs the type of service backed up separately, is carried out real time correlation by relating module 31;
The mode that negotiation module 32 can transmit to the other side the user service information that both sides support by active and standby service node determines that active and standby service node needs the type of service backed up separately.That is, after a connection setup, when active and standby SN consults the type of service supporting backup, the negotiation module 32 of active and standby SN transmits the business information that both sides support.
Package module 33 is for when the user service information of working traffic node changes, encapsulated with the user service information that standby traffic node needs the type of service that backs up corresponding by predetermined format according to activestandby state, and the user service information of different service types is identified; Preferably, above-mentioned predetermined format is Type Length numerical value (Type Length Value, referred to as TLV) form;
The user service information package module 33 of different service types is identified by the different type in TLV.Can be identified by sub-TLV (SUB-TLV) the different child user business information package modules 33 of same type of service.
Owing to adopting unified agreement and unified mark, therefore transferable type of user information can be consulted between the SN equipment of different equipment manufacturer.
In addition, in all normal situation of the state of active and standby service node, the mode that package module 33 can adopt real time information to back up is encapsulated with the user service information that standby traffic node needs the type of service that backs up corresponding by predetermined format, and identifies the user service information of different service types; After former working traffic one malfunctions generation master/slave switchover, former working traffic node state recover and with current working traffic node re-establish be connected when, the mode that package module 33 can adopt bulk information to back up is encapsulated with the user service information that standby traffic node needs the type of service that backs up corresponding by predetermined format, and identifies the user service information of different service types.
That is, the package module 33 of embodiment of the present invention technical scheme can support real time information backup or bulk information backup, in all normal situation of active and standby SN state, adopt real time information for subsequent use comparatively suitable, when former primary SN equipment breaks down discovery master/slave switchover, former primary SN equipment state is recovered and is re-established after TCP is connected with current primary SN equipment, and the method adopting bulk information to back up is comparatively suitable.
Sending module 34 is for sending to standby traffic node by the user service information after encapsulation by above-mentioned connection;
Backup module 35 is for backing up according to the described user service information after encapsulation.
First, the type of service of backup module 35 belonging to the user service information after the type judgement encapsulation in TLV; Subsequently, backup module 35 carries out corresponding backup operation according to type of service to user service information.After type of service belonging to user service information after backup module 35 judges encapsulation according to the type in TLV, if judge that type of service belongs to standby traffic and saves the type of service do not supported, the user service information after encapsulation can be ignored.
By means of technical scheme of the present invention, by unified agreement at service node backup between equipment user service information, and determine by the negotiation of equipment room the user type needing backup, the user service information of redundancy backup and backup multiple business that the equipment room solving different software platforms in prior art cannot realize user service information needs to use the problem of different agreement.Can ensure that fellow users business information realizes redundancy backup at the equipment room of different platform, decrease the restriction of operator's deployed with devices, and achieve the user service information using uniform protocol backup multiple business, enhance the scalability of equipment.
Although be example object, disclose the preferred embodiments of the present invention, it is also possible for those skilled in the art will recognize various improvement, increase and replacement, and therefore, scope of the present invention should be not limited to above-described embodiment.
Claims (11)
1. a user service information backup method, is characterized in that, comprising:
Connected between active and standby service node by predetermined protocol, and handling capacity consult determine described active and standby service node need separately back up type of service after, the activestandby state of described connection and described active and standby service node is carried out real time correlation;
Working traffic node is when user service information changes, encapsulated with the user service information that described standby traffic node needs the type of service that backs up corresponding by predetermined format according to described activestandby state, and the user service information of different service types is identified;
Described user service information after encapsulation is sent to standby traffic node by described connection, backs up according to the described user service information after encapsulation to make described standby traffic node.
2. the method for claim 1, is characterized in that, described being connected between active and standby service node by predetermined protocol is comprised:
Between described active and standby service node, set up the described connection with specific purpose port numbers by described predetermined protocol, wherein, described specific purpose port numbers is for identifying described predetermined protocol.
3. the method for claim 1, is characterized in that, described handling capacity consults to determine that described active and standby service node needs the type of service backed up to comprise separately:
Transmit to the other side the user service information that both sides support by described active and standby service node and determine that described active and standby service node needs the type of service backed up separately.
4. the method for claim 1, is characterized in that, described predetermined format is: Type Length numerical value TLV.
5. method as claimed in claim 4, it is characterized in that, the described user service information to different service types carries out mark and comprises:
The user service information of different service types is identified by the type in described TLV.
6. method as claimed in claim 4, it is characterized in that, described method also comprises: identified by sub-TLV the different child user business information of same type of service.
7. method as claimed in claim 4, is characterized in that, described standby traffic node carries out backup according to the described user service information after encapsulation and comprises:
Described standby traffic node judges the type of service belonging to the described user service information after encapsulation according to the type in described TLV;
Described standby traffic node carries out corresponding backup operation according to described type of service to described user service information.
8. method as claimed in claim 7, is characterized in that, after described standby traffic node judges the type of service belonging to the described user service information after encapsulation according to the type in described TLV, described method also comprises:
When described standby traffic node judges that described type of service belongs to the type of service that described standby traffic node do not support, described standby traffic node ignores the described user service information after encapsulation.
9. the method for claim 1, it is characterized in that, encapsulated with the user service information that described standby traffic node needs the type of service that backs up corresponding by predetermined format according to described activestandby state, and mark is carried out to the user service information of different service types comprise:
In all normal situation of the state of described active and standby service node, adopt the mode of real time information backup to be encapsulated with the user service information that described standby traffic node needs the type of service that backs up corresponding by described predetermined format, and the user service information of different service types is identified;
After former working traffic one malfunctions generation master/slave switchover, described former working traffic node state is recovered and when re-establishing described connection with current working traffic node, adopt the mode of bulk information backup to be encapsulated with the user service information that described standby traffic node needs the type of service that backs up corresponding by described predetermined format, and the user service information of different service types is identified.
10. as claimed in any one of claims 1-9 wherein method, is characterized in that, described predetermined protocol is one of following: transmission control protocol, User Datagram Protocol, reliable user data packet protocol.
11. 1 kinds of user service information back-up devices, is characterized in that, comprising:
Set up module, for being connected between active and standby service node by predetermined protocol;
Negotiation module, consults to determine that described active and standby service node needs the type of service backed up separately for handling capacity;
Relating module, for carrying out real time correlation by the activestandby state of described connection and described active and standby service node;
Package module, for when the user service information of working traffic node changes, encapsulated with the user service information that described standby traffic node needs the type of service that backs up corresponding by predetermined format according to described activestandby state, and the user service information of different service types is identified;
Sending module, for sending to standby traffic node by the described user service information after encapsulation by described connection;
Backup module, for backing up according to the described user service information after encapsulation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010179028.8A CN102255741B (en) | 2010-05-21 | 2010-05-21 | User service information backup method and device |
| PCT/CN2010/077678 WO2011143891A1 (en) | 2010-05-21 | 2010-10-12 | Method and apparatus for backup of subscriber service information |
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| CN201010179028.8A CN102255741B (en) | 2010-05-21 | 2010-05-21 | User service information backup method and device |
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| CN114629781A (en) * | 2020-11-27 | 2022-06-14 | 中国移动通信有限公司研究院 | Equipment switching method, device, equipment and readable storage medium |
| CN113505027B (en) * | 2021-09-10 | 2022-03-01 | 深圳市科力锐科技有限公司 | Business system backup method, device, equipment and storage medium |
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| CN101616343A (en) * | 2009-06-25 | 2009-12-30 | 中兴通讯股份有限公司 | A kind of auto-negotiation method for service types and convergence device thereof |
Also Published As
| Publication number | Publication date |
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| CN102255741A (en) | 2011-11-23 |
| WO2011143891A1 (en) | 2011-11-24 |
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