CN106790286A - A kind of method and device of information back-up - Google Patents
A kind of method and device of information back-up Download PDFInfo
- Publication number
- CN106790286A CN106790286A CN201710114922.9A CN201710114922A CN106790286A CN 106790286 A CN106790286 A CN 106790286A CN 201710114922 A CN201710114922 A CN 201710114922A CN 106790286 A CN106790286 A CN 106790286A
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- equipment
- host apparatus
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- proxy information
- tcp agent
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention provides a kind of method of information back-up, and the method is applied to TCP agent equipment group, and the TCP agent equipment group includes host apparatus and stand-by equipment, and methods described includes：After the startup of TCP agent equipment group, the proxy information when host apparatus that host apparatus are preserved perform TCP agent business is synchronized to stand-by equipment；In TCP agent equipment group running, the data message real-time synchronization that host apparatus are received to stand-by equipment；Stand-by equipment decapsulates the data message, to obtain the proxy information that data message is included.Using the embodiment of the present invention, by the data message real-time synchronization that receives host apparatus to stand-by equipment, it is to avoid host apparatus are from the time-consuming of data message decapsulation proxy information process before backup.When host apparatus delay machine, because the proxy information in the proxy information in host apparatus and stand-by equipment is identical, for the user for being currently in use agency service, the interruption of access, better user experience are not resulted in.
Description
Technical field
The application is related to communication technical field, the more particularly to method and device of information back-up.
Background technology
TCP (Transmission Control Protocol, transmission control protocol) agent equipment is typically deployed in network
Critical path on, the stability and security of equipment directly affect the availability of network.In order to avoid Single Point of Faliure, typically
Dispose two TCP agent equipment in same path, one as host apparatus normal process business, one is protected as stand-by equipment
Holding state is held, while host apparatus back up in realtime to stand-by equipment proxy information when processing agent service.Set when primary
For when breaking down, service traffics can be switched to stand-by equipment with the unobstructed of Logistics networks from host apparatus.
In the prior art, for two information back-ups of TCP agent equipment, generally datagram is first received by host apparatus
Text, then from the proxy information that received data Receive message is to be backed up, finally again sends to standby the proxy information of acquisition
With equipment, backup is completed.Obtained from data message due to host apparatus the process of proxy information need it is certain time-consuming, so
There is time delay in existing redundancy technique.After host apparatus delay machine, the proxy information in above-mentioned time delay cannot be standby
Part, for the user for being currently in use agency service, the interruption for accessing can be caused, Consumer's Experience is poor.
The content of the invention
The method and apparatus that the embodiment of the present invention provides information back-up, for solving existing information back-up technical user body
Test poor problem.
First aspect according to embodiments of the present invention, there is provided a kind of method of information back-up, methods described is applied to TCP generations
Reason equipment group, the TCP agent equipment group includes host apparatus and stand-by equipment, and methods described includes：
After TCP agent equipment group startup, the host apparatus that the host apparatus are preserved perform TCP generations
Proxy information during reason business is synchronized to stand-by equipment；
In the TCP agent equipment group running, the data message real-time synchronization that the host apparatus are received is extremely
Stand-by equipment；
The stand-by equipment decapsulates the data message, to obtain the proxy information that the data message is included.
Second aspect according to embodiments of the present invention, there is provided a kind of device of information back-up, described device is applied to TCP generations
Reason equipment group, the TCP agent equipment group includes host apparatus and stand-by equipment, and described device includes：
Synchronization unit, it is described primary for preserved the host apparatus after TCP agent equipment group startup
Proxy information when equipment performs TCP agent business is synchronized to stand-by equipment；
In the TCP agent equipment group running, the data message for the host apparatus to be received is same in real time
Walk to stand-by equipment；
Decapsulation unit, for making the stand-by equipment decapsulate the data message, so that the stand-by equipment is obtained
The proxy information that the data message is included.
From above technical scheme, the embodiment of the present invention by the TCP agent equipment group running, by institute
The data message real-time synchronization of host apparatus reception is stated to stand-by equipment, so that stand-by equipment obtains agency's letter of host apparatus
Breath, it is to avoid host apparatus obtain from data message taking for proxy information process in the prior art before backup.Set when primary
Preparation life delay machine when, due to the time delay backed up in the absence of proxy information in the prior art, proxy information in host apparatus with it is standby
It is identical with the proxy information in equipment, for the user for being currently in use agency service, does not result in the interruption of access, user
Experience is preferable.
Brief description of the drawings
Fig. 1 is an application scenarios schematic diagram of the method for embodiment of the present invention information back-up；
Fig. 2 is one embodiment flow chart of the method for information back-up of the present invention；
Fig. 3 is another embodiment flow chart of the method for information back-up of the present invention；
Fig. 4 is a kind of hardware structure diagram of the device place equipment of information back-up of the present invention；
Fig. 5 is one embodiment block diagram of the device of information back-up of the present invention.
Specific embodiment
In order that those skilled in the art are better understood from the technical scheme in the embodiment of the present invention, and make of the invention real
Applying the above-mentioned purpose of example, feature and advantage can be more obvious understandable, below in conjunction with the accompanying drawings to the technology in the embodiment of the present invention
Scheme is described in further detail.
Fig. 1 is an application scenarios schematic diagram of the method for embodiment of the present invention information back-up, and the scene was included by TCP generations
The TCP agent equipment group of reason device A and TCP agent equipment B compositions, upstream equipment and upstream device.Wherein, shown TCP generations
The device A of reason equipment group is host apparatus, and equipment B is stand-by equipment, is connected with heartbeat between device A and equipment B.Meanwhile, if
Standby A is connected with upstream equipment and upstream device, and equipment B is connected with upstream equipment and upstream device, and device A can be only with equipment B
It is vertical that TCP agent service is provided.
By taking the proxy information backup between A equipment and B device to the group of TCP agent equipment shown in Fig. 1 as an example, prior art
In, data message is first generally received by A equipment, then from the proxy information that received data Receive message is to be backed up, finally
The proxy information of acquisition is sent to B device again, completes backup.The mistake of proxy information is obtained from data message due to A equipment
Journey needs are certain to be taken, so existing redundancy technique has time delay.After A equipment delays machine, in above-mentioned time delay
Proxy information cannot be backed up, and for the user for being currently in use agency service, can cause the interruption for accessing, Consumer's Experience compared with
Difference.
With reference to the application scenarios shown in Fig. 1, the embodiment of the present invention is described in detail.
Referring to Fig. 2, Fig. 2 is one embodiment flow chart of the method for information back-up of the present invention, and the embodiment is applied to TCP
Agent equipment group, the TCP agent equipment group includes host apparatus and stand-by equipment, and methods described includes：
Step 201：After TCP agent equipment group startup, the host apparatus that the host apparatus are preserved
Proxy information when performing TCP agent business is synchronized to stand-by equipment.
In this step, proxy information includes forward-path and forwarding content, specifically, forward-path includes：Send sequence number,
Receive sequence number, congestion control window；Forwarding content includes：Transmit queue is updated the data, and receiving queue is updated the data.
In an optional mode, in above-mentioned synchronizing process, the host apparatus that first can be preserved host apparatus
Proxy information when performing TCP agent business is encrypted and compresses；Then the proxy information after encryption and compression is sent again
To the stand-by equipment；It is last to be decrypted by stand-by equipment and decompress to obtain proxy information.
In an optional mode, in the TCP agent equipment group, any session of respectively described host apparatus
Corresponding proxy information sets ageing time.
Step 202：In the TCP agent equipment group running, the data message reality that the host apparatus are received
When be synchronized to stand-by equipment.
In an optional mode, can be by the heartbeat between the host apparatus and the stand-by equipment, by institute
The data message real-time synchronization of host apparatus reception is stated to stand-by equipment.
Step 203：The stand-by equipment decapsulates the data message, and the agency included with obtaining the data message believes
Breath.
In an optional mode, if the proxy information corresponding to any session of host apparatus be both provided with it is aging
It is time, then same in host apparatus and stand-by equipment when the ageing time of the proxy information corresponding to any session is reached
When delete the ageing time arrival proxy information.
From above example, the embodiment of the present invention is described by the TCP agent equipment group running, inciting somebody to action
The data message real-time synchronization that host apparatus are received is to stand-by equipment, so that stand-by equipment obtains the proxy information of host apparatus,
Avoid backup before in the prior art host apparatus obtained from data message proxy information process take.When host apparatus hair
Life delay machine when, due to the time delay backed up in the absence of proxy information in the prior art, the proxy information in host apparatus sets with standby
Proxy information in standby is identical, for the user for being currently in use agency service, does not result in the interruption of access, Consumer's Experience
Preferably.
Referring to Fig. 3, Fig. 3 is another embodiment flow chart of the method for information back-up of the present invention, and the embodiment is applied to
TCP agent equipment group, the process to the backup of TCP agent equipment group information has been described in detail, the TCP agent equipment group bag
Host apparatus and stand-by equipment are included, methods described includes：
Step 301：After the TCP agent equipment group starts, the host apparatus that host apparatus are preserved perform TCP agent
Every proxy information during business is encrypted and compresses, and every proxy information is associated with ageing time.
In this step, proxy information includes forward-path and forwarding content, specifically, forward-path includes：Send sequence number,
Receive sequence number, congestion control window；Forwarding content includes：Transmit queue is updated the data, and receiving queue is updated the data.
Step 302：Proxy information after encryption and compression is sent to stand-by equipment.
In this step, can be by the heartbeat between proprietary protocol and host apparatus and stand-by equipment, by encryption and pressure
Proxy information after contracting is sent to stand-by equipment.
Step 303：Stand-by equipment is decrypted to the proxy information after encryption and compression and decompresses to obtain agency's letter
Breath.
Step 304：In TCP agent equipment group running, the data message real-time synchronization that host apparatus are received is extremely
Stand-by equipment.
In this step, can be by the heartbeat between proprietary protocol and host apparatus and stand-by equipment, by host apparatus
The data message real-time synchronization of reception is to stand-by equipment.
Step 305：Stand-by equipment decapsulates the data message, to obtain the proxy information that the data message is included.
Step 306：Stand-by equipment is respectively every proxy information association ageing time that above-mentioned decapsulation is obtained.
Step 307：When the ageing time of any bar proxy information association in TCP agent equipment group is reached, this is deleted old
The proxy information that the change time reaches.
From above example, the embodiment of the present invention is described by the TCP agent equipment group running, inciting somebody to action
The data message real-time synchronization that host apparatus are received is to stand-by equipment, so that stand-by equipment obtains the proxy information of host apparatus,
Avoid backup before in the prior art host apparatus obtained from data message proxy information process take.When host apparatus hair
Life delay machine when, due to the time delay backed up in the absence of proxy information in the prior art, the proxy information in host apparatus sets with standby
Proxy information in standby is identical, for the user for being currently in use agency service, does not result in the interruption of access, Consumer's Experience
Preferably.
The embodiment of the present invention is illustrated below by a specific application example, application example combination Fig. 1 shows
The application scenarios for going out are described, wherein, the TCP agent device A in shown TCP agent equipment group is host apparatus, TCP agent
Equipment B is stand-by equipment.Assuming that after the startup of shown TCP agent equipment group, its execution TCP generation previous is preserved in host apparatus
Forward-path (send sequence number, Receive sequence number, congestion control window) and forwarding content (hair during cut task corresponding to each session
Queue is sent to update the data, receiving queue is updated the data), and forward-path corresponding to each session and forwarding content be associated with
Ageing time.Need to appoint the above-mentioned forward-path for having preserved and forwarding content, and host apparatus in follow-up agent now
Forward-path and forwarding content synchronization to stand-by equipment in business corresponding to the session of generation.Synchronizing process is as follows：
After TCP agent equipment group starts, by the forward-path of host apparatus preservation and forwarding content-encrypt and compression；
By the heartbeat between proprietary protocol and host apparatus and stand-by equipment, host apparatus are by after encryption and compression
Forward-path and forwarding content are sent to stand-by equipment；
Stand-by equipment is decrypted to the forward-path after encryption and compression and forwarding content and decompresses to be forwarded
Path is with forwarding content and for it associates its ageing time in host apparatus；
In TCP agent equipment group running, the data message of each session that host apparatus will be received is same in real time
Walk to stand-by equipment；
Stand-by equipment decapsulates above-mentioned data message, to obtain in forward-path and forwarding that above-mentioned data message is included
Hold；
Stand-by equipment is respectively every group of forward-path and the forwarding relevance ageing time that above-mentioned decapsulation is obtained；
When the ageing time of any every group of forward-path in TCP agent equipment group and forwarding relevance is reached, delete
The corresponding every group of forward-path of any ageing time and forwarding content.
Embodiment with the method that aforementioned information is backed up is corresponding, present invention also provides the implementation of the device of information back-up
Example.
The embodiment of the device of the application information back-up can be applied in TCP agent equipment group.Device embodiment can be with
Realized by software, it is also possible to realized by way of hardware or software and hardware combining.As a example by implemented in software, patrolled as one
Device in volume meaning, is by corresponding computer program instructions in nonvolatile memory by the processor of equipment where it
Read and run in internal memory what is formed.From for hardware view, as shown in figure 4, being set where the device of the application information back-up
A kind of standby hardware structure diagram, in addition to the processor shown in Fig. 4, internal memory, network interface and nonvolatile memory,
Equipment in embodiment where device can also include other hardware generally according to the actual functional capability of the equipment, and this is no longer gone to live in the household of one's in-laws on getting married
State.
Fig. 5 is refer to, is one embodiment block diagram of the device of information back-up of the present invention, described device is applied to TCP generations
Reason equipment group, the TCP agent equipment group includes host apparatus and stand-by equipment, and described device includes：Synchronization unit 510, solution
Encapsulation unit 520.
Wherein, synchronization unit 510, after TCP agent equipment group startup, for preserved the host apparatus
The proxy information when host apparatus perform TCP agent business is synchronized to stand-by equipment；
In the TCP agent equipment group running, the data message for the host apparatus to be received is same in real time
Walk to stand-by equipment；
Decapsulation unit 520, for making the stand-by equipment decapsulate the data message, so that the stand-by equipment is obtained
Obtain the proxy information that the data message is included.
From above example, the embodiment of the present invention is described by the TCP agent equipment group running, inciting somebody to action
The data message real-time synchronization that host apparatus are received is to stand-by equipment, so that stand-by equipment obtains the proxy information of host apparatus,
Avoid backup before in the prior art host apparatus obtained from data message proxy information process take.When host apparatus hair
Life delay machine when, due to the time delay backed up in the absence of proxy information in the prior art, the proxy information in host apparatus sets with standby
Proxy information in standby is identical, for the user for being currently in use agency service, does not result in the interruption of access, Consumer's Experience
Preferably.
In an optional example, the synchronization unit 510 is included (not shown in Fig. 5)：Ciphered compressed subelement, letter
Breath transmission sub-unit, decrypts decompression unit.
Wherein, ciphered compressed subelement, the host apparatus for the host apparatus to be preserved perform TCP agent
Proxy information during business is encrypted and compresses；
Information transmission sub-unit, for the proxy information after the encryption and compression to be sent to the stand-by equipment；
Decryption decompression unit, for decrypting the stand-by equipment and decompressing the agency after the encryption and compression
Information.
In another optional example, the synchronization unit 510 is additionally operable to：
By the heartbeat between the host apparatus and the stand-by equipment, the data message that the host apparatus are received
Real-time synchronization is to stand-by equipment.
In another optional example, the proxy information, including：
Forward-path and forwarding content.
In another optional example, described device is also included (not shown in Fig. 5)：Ageing time setting unit, generation
Reason information deletion unit.
Ageing time setting unit, in the TCP agent equipment group, any session institute of respectively described host apparatus
Corresponding proxy information sets ageing time；
Proxy information deletes unit, when the ageing time of the proxy information corresponding to any session is reached, deletes
Proxy information corresponding to any session.
The function of unit and the implementation process of effect correspond to step in specifically referring to the above method in said apparatus
Implementation process, will not be repeated here.
For device embodiment, because it corresponds essentially to embodiment of the method, so related part is referring to method reality
Apply the part explanation of example.Device embodiment described above is only schematical, wherein described as separating component
The unit of explanation can be or may not be physically separate, and the part shown as unit can be or can also
It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Selection some or all of module therein is needed to realize the purpose of application scheme.Those of ordinary skill in the art are not paying
In the case of going out creative work, you can to understand and implement.
The preferred embodiment of the application is the foregoing is only, is not used to limit the application, all essences in the application
Within god and principle, any modification, equivalent substitution and improvements done etc. should be included within the scope of the application protection.
Claims (10)
1. a kind of method of information back-up, it is characterised in that methods described is applied to TCP agent equipment group, and the TCP agent sets
Standby group includes host apparatus and stand-by equipment, and methods described includes：
After TCP agent equipment group startup, the host apparatus that the host apparatus are preserved perform TCP agent industry
Proxy information during business is synchronized to stand-by equipment；
In the TCP agent equipment group running, the data message real-time synchronization that the host apparatus are received is to standby
Equipment；
The stand-by equipment decapsulates the data message, to obtain the proxy information that the data message is included.
2. method according to claim 1, it is characterised in that described described primary to be set what the host apparatus were preserved
Proxy information during standby execution TCP agent business is synchronized to stand-by equipment, including：
The proxy information when host apparatus that the host apparatus are preserved perform TCP agent business is encrypted and presses
Contracting；
Proxy information after the encryption and compression is sent to the stand-by equipment；
The proxy information after the encryption and compression is decrypted and decompressed to the stand-by equipment.
3. method according to claim 1, it is characterised in that the data message for receiving the host apparatus is real-time
Stand-by equipment is synchronized to, including：
By the heartbeat between the host apparatus and the stand-by equipment, the data message that the host apparatus are received is real-time
It is synchronized to stand-by equipment.
4. method according to claim 1, it is characterised in that the proxy information, including：
Forward-path and forwarding content.
5. method according to claim 1, it is characterised in that also include：
In the TCP agent equipment group, the proxy information corresponding to any session of respectively described host apparatus sets old
The change time；
When the ageing time of the proxy information corresponding to any session is reached, the agency corresponding to any session is deleted
Information.
6. a kind of device of information back-up, it is characterised in that described device is applied to TCP agent equipment group, and the TCP agent sets
Standby group includes host apparatus and stand-by equipment, and described device includes：
Synchronization unit, after TCP agent equipment group startup, for the host apparatus for being preserved the host apparatus
Proxy information when performing TCP agent business is synchronized to stand-by equipment；
In the TCP agent equipment group running, for the data message real-time synchronization that receives the host apparatus extremely
Stand-by equipment；
Decapsulation unit, for making the stand-by equipment decapsulate the data message, so that the stand-by equipment obtains described
The proxy information that data message is included.
7. device according to claim 6, it is characterised in that the synchronization unit, including：
Ciphered compressed subelement, when performing TCP agent business for the host apparatus that are preserved the host apparatus
Proxy information is encrypted and compresses；
Information transmission sub-unit, for the proxy information after the encryption and compression to be sent to the stand-by equipment；
Decryption decompression unit, the agency for decrypting the stand-by equipment and to decompress after the encryption and compression believes
Breath.
8. device according to claim 6, it is characterised in that the synchronization unit, is additionally operable to：
By the heartbeat between the host apparatus and the stand-by equipment, the data message that the host apparatus are received is real-time
It is synchronized to stand-by equipment.
9. device according to claim 6, it is characterised in that the proxy information, including：
Forward-path and forwarding content.
10. device according to claim 6, it is characterised in that also include：
Ageing time setting unit, in the TCP agent equipment group, corresponding to any session of respectively described host apparatus
Proxy information set ageing time；
Proxy information deletes unit, when the ageing time of the proxy information corresponding to any session is reached, deletes this
Proxy information corresponding to one session.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114922.9A CN106790286A (en) | 2017-02-28 | 2017-02-28 | A kind of method and device of information back-up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114922.9A CN106790286A (en) | 2017-02-28 | 2017-02-28 | A kind of method and device of information back-up |
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ID=58960837
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| CN201710114922.9A Pending CN106790286A (en) | 2017-02-28 | 2017-02-28 | A kind of method and device of information back-up |
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| CN107995022A (en) * | 2017-10-25 | 2018-05-04 | 东软集团股份有限公司 | Session synchronization method and device, storage medium, electronic equipment |
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