CN102891833B - Network disaster tolerance method and system - Google Patents
Network disaster tolerance method and system Download PDFInfo
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- CN102891833B CN102891833B CN201110204954.0A CN201110204954A CN102891833B CN 102891833 B CN102891833 B CN 102891833B CN 201110204954 A CN201110204954 A CN 201110204954A CN 102891833 B CN102891833 B CN 102891833B
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- Prior art keywords
- sip
- agent apparatus
- application server
- distribution agent
- distribution
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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
- H04L41/0668—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1045—Proxies, e.g. for session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1046—Call controllers; Call servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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- 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
- H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
Abstract
The invention provides a kind of network disaster tolerance method and system.It is related to IP communication fields;Solve the problems, such as that SIP distribution agent apparatus cause network global paralysis when breaking down.The method includes:When SIP distribution agent apparatus cannot process the service request for receiving, the service request is handed over to into the 2nd SIP distribution agent apparatus, SIP distribution agent apparatus and the 2nd SIP distribution agent apparatus backup each other after normal work equipment;The 2nd SIP distributions agent apparatus process the service request that the SIP distributions agent apparatus are transferred.The technical scheme that the present invention is provided realizes the back mechanism of flexibility and reliability suitable for SIP network.
Description
Technical field
The present invention relates to IP communication fields, particularly a kind of next generation network (NGN) or IP multimedia systems (IMS) network
Network disaster tolerance method and system in environment.
Background technology
With the popularization of mobile communications network, quality of service requirement more and more higher of the user to mobile communication, operator will
After asking network node to break down, network can continue to offer service.It is simultaneously under the ever-increasing trend of telephone traffic, single
Application server processes limited capacity, is badly in need of expanding the quantity of application server strengthening the process performance of application server, meeting
Words initializtion protocol (SIP) distribution agent apparatus shield the increase of application server quantity inside network office point, solve
The performance bottleneck and dilatation problem of application server, but there is presently no and solve the problems, such as network disaster tolerance well, when SIP distributes
When agent apparatus break down, easily there is bottleneck, even if there are SIP distribution agent apparatus using active and standby two-shipper, also need certain
Switching time or as two-shipper failure itself causes handoff failure, cause the global paralysis of network, be unfavorable for the development of business.
The content of the invention
The invention provides a kind of network disaster tolerance method and system, solve when SIP distribution agent apparatus break down and lead
Cause the problem of the global paralysis of network.
A kind of network disaster tolerance method, including:
When SIP distribution agent apparatus cannot process the service request for receiving, the service request is handed over to
2nd SIP distributes agent apparatus, and the SIP distribution agent apparatus and the 2nd SIP distribute agent apparatus in normal work
Backup each other after work equipment;
The 2nd SIP distributions agent apparatus process the service request that the SIP distributions agent apparatus are transferred.
Preferably, the multiple application servers under the SIP distributions agent apparatus are acted on behalf of with the 2nd SIP distributions
Multiple application servers under device correspond the equipment that backups each other.
Preferably, the service request be specially IP multimedia systems (IMS) network or next generation network (NGN) network to
The incoming call request that the first SIP distributions agent apparatus send, described cannot process in SIP distribution agent apparatus are received
Service request when, by the service request be handed over to the 2nd SIP distribution agent apparatus be specially:
When SIP distribution agent apparatus are abnormal, a SIP distributes agent apparatus not to the IMS nets
Network or NGN networks are responded to the link detecting request that SIP distribution agent apparatus send, to indicate the IMS
Network or NGN networks send incoming call request to the 2nd SIP distributions agent apparatus for responding the link detecting request.
Preferably, the service request is specially IMS network or NGN networks and sends out to SIP distribution agent apparatus
The incoming call request for going out, a SIP distribute agent apparatus when processing the service request for receiving, please by the business
Ask be handed over to the 2nd SIP distribution agent apparatus be specially:
When whole application servers that a SIP distributes under agent apparatus are abnormal, exhaled described by soft switch
Enter request and be switched to the 2nd SIP distributions agent apparatus.
Preferably, the service request is specially IMS network or NGN networks and sends out to SIP distribution agent apparatus
The incoming call request for going out, it is described when SIP distribution agent apparatus cannot process the service request for receiving, please by the business
Ask be handed over to the 2nd SIP distribution agent apparatus be specially:
When a SIP distributes and the application server exception of the incoming call request is processed under agent apparatus, will be described
Incoming call request is forwarded to the stand-by equipment of the application server under second sip server.
Preferably, what the application server that the service request is specially under the SIP distributions agent apparatus sent
Active outgoing call, it is described when SIP distribution agent apparatus cannot process the service request for receiving, the service request is moved
Hand over to the 2nd SIP distribution agent apparatus and be specially:
The application server detect SIP distribution agent apparatus it is abnormal when, the application server to
The 2nd SIP distributions agent apparatus send exhalation request.
Preferably, above-mentioned network disaster tolerance method also includes:
The first SIP distribution agent apparatus are detected by link detection mechanism and distribute agent apparatus with the 2nd SIP
Under multiple application servers connection, the 2nd SIP distribution agent apparatus are by link detection mechanism detection and institute
State the connection of the multiple application servers under SIP distribution agent apparatus.
Present invention also offers a kind of network disaster tolerance system, including SIP distribution agent apparatus and the 2nd SIP distribution generations
Reason device, the SIP distribution agent apparatus and the 2nd SIP distribution agent apparatus backup each other after normal work
Equipment;
First SIP distributes agent apparatus, for when processing the service request for receiving, the business being asked
Ask and be handed over to the 2nd SIP distributions agent apparatus;
2nd SIP distributes agent apparatus, please for processing the business that the SIP distributions agent apparatus are transferred
Ask.
Preferably, above-mentioned network disaster tolerance system also distributes the multiple application services under agent apparatus including a SIP
Multiple application servers under device and the 2nd SIP distribution agent apparatus, it is multiple under the SIP distributions agent apparatus
Multiple application servers that application server is distributed with the 2nd SIP under agent apparatus correspond the equipment that backups each other.
Preferably, a SIP distributes agent apparatus, specifically for distributing agent apparatus exception in a SIP
When, the SIP distributions agent apparatus are not sent out to SIP distribution agent apparatus to the IMS network or NGN networks
The link detecting request for going out is responded, to indicate the IMS network or NGN networks to the response link detecting request
The 2nd SIP distributions agent apparatus send incoming call request;Or,
When whole application servers that a SIP distributes under agent apparatus are abnormal, exhaled described by soft switch
Enter request and be switched to the 2nd SIP distributions agent apparatus;Or,
When a SIP distributes and the application server exception of the incoming call request is processed under agent apparatus, will be described
Incoming call request is forwarded to the stand-by equipment of the application server under second sip server.
Preferably, the application server under the SIP distributions agent apparatus, for detecting in the application server
During to SIP distribution agent apparatus exceptions, exhalation request is sent to the 2nd SIP distribution agent apparatus.
Preferably, a SIP distributes agent apparatus, is additionally operable to detect and described second by link detection mechanism
The connection of the multiple application servers under SIP distribution agent apparatus;
2nd SIP distributes agent apparatus, is additionally operable to detect by link detection mechanism and distribute generation with a SIP
The connection of the multiple application servers under reason device.
The invention provides a kind of network disaster tolerance method and system, cannot process reception in SIP distribution agent apparatus
During the service request for arriving, the service request is handed over to into the 2nd SIP distribution agent apparatus, SIP distributions agency's dress
Put and backup each other after normal work equipment with the 2nd SIP distribution agent apparatus, and acted on behalf of by the 2nd SIP distributions
The service request that device process the first SIP distributions agent apparatus are transferred, realizes and distributes the fast of agent apparatus exception to SIP
Speed response, solves the problems, such as that SIP distribution agent apparatus cause network global paralysis when breaking down.
Description of the drawings
Fig. 1 is a kind of structural representation of network disaster tolerance system that embodiments of the invention one are provided;
Fig. 2 is a kind of network disaster tolerance method and flow chart that embodiments of the invention one are provided;
Fig. 3 is a kind of structural representation of network disaster tolerance system that embodiments of the invention two are provided;
Fig. 4 is disaster tolerance flow chart when being distributed the SS incoming calls that agent apparatus realize in embodiments of the invention two by SIP;
When Fig. 5 is to distribute the application server active outgoing call that agent apparatus are realized by SIP in embodiments of the invention two
Disaster tolerance flow chart.
Specific embodiment
When SIP distribution agent apparatus break down, easily there is bottleneck, even if there are SIP distribution agent apparatus using master
Standby two-shipper, also needs certain switching time or as two-shipper failure itself causes handoff failure, causes the global paralysis of network, unfavorable
In the development of business.So exigence SIP distribution agent apparatus provide reliable carrying out safety backup mechanism, with to greatest extent
Ensure the normal operation of network, when there is the condition of a disaster, still ensure the development of business, anti-disaster ability is strong, can possess at the danger and disaster moment
One is pulled constantly communication life line.
In order to solve the above problems, The embodiment provides a kind of network disaster tolerance method and system.Hereinafter will
Embodiments of the invention are described in detail with reference to accompanying drawing.It should be noted that in the case where not conflicting, in the application
Feature in embodiment and embodiment can mutual combination in any.
Accompanying drawing is combined first, and embodiments of the invention one are illustrated.
In the embodiment of the present invention, disaster tolerance mechanism, including SIP distribution agent apparatus are all realized in the incoming call and exhalation of sip message
Disaster tolerance during the application server active outgoing call that the disaster tolerance and SIP distribution agent apparatus during SS incoming calls of realization are realized.
Embodiments provide a kind of network disaster tolerance system, the structure of the system as shown in figure 1, including:
First SIP distributes agent apparatus 101 and the 2nd SIP distribution agent apparatus 103.
Preferably, the system also distributes the multiple application servers 102 under agent apparatus including a SIP, and should
Multiple application servers 104 under 2nd SIP distribution agent apparatus.
The first SIP distribution agent apparatus 101 and the 2nd SIP distribute agent apparatus 103 after normal work
Backup each other equipment, and the multiple application servers 102 under the SIP distributions agent apparatus 101 are distributed with the 2nd SIP
Multiple application servers 104 under agent apparatus 103 correspond the equipment that backups each other.It should be noted that at a SIP point
Send out application server quantity under agent apparatus 101 and the 2nd SIP distribution agent apparatus 103 it is different when, be typically due to first
SIP distributes agent apparatus 101 and is in different office points, now, the certain applications having more from the 2nd SIP distribution agent apparatus 103
Server need not be backed up.
First SIP distributions agent apparatus 101 and the multiple application servers 102 under which constitute an office point, the 2nd SIP
Distribution agent apparatus 103 and the multiple application servers 104 under which constitute another office point.
First SIP distributes agent apparatus 101 and the 2nd SIP distribution agent apparatus 103 are connected with IMS network or NGN networks.
Either SIP distribution agent apparatus 101 and the 2nd SIP distribution agent apparatus 103, need and thereafter all the time
Application server and these application servers backup application server keep link detection mechanism, i.e. SIP distribution agency
Device can know the link quality state of application server, when soft switch (Soft Switch, SS) incoming call, SIP in real time
Distribution agent apparatus just carry out decision message and are intended for its lower application server or backup application server.
And application server also can carry out link detecting, i.e. application server by SIP distribution agencies to soft switch
Device or the 2nd SIP distribution agent apparatus can reach SS, if wherein have SIP distribution agent apparatus be it is good,
Then it is considered that the SS does not have chain rupture, while it is also known which SIP distribution agent apparatus link is normal, which is abnormal
, when the link of only active and standby SIP distributions agent apparatus is all abnormal, the SS is only disabled, such application server outgoing call
When just can confirm that it is which SIP agent apparatus outgoing call is distributed to SS by.Also there is on application server OPTIONS link detectings
Mechanism, keeps detecting the link for reaching all SS, or the whether normal information of all links.
SIP distribution agent apparatus can be integrated on a certain application server in office point, complete phase by the application server
Answer function;Preferably, in order to prevent application server failure from causing SIP distribution agent apparatus function situations about cannot exercise
It is existing, also SIP distribution agent apparatus can be integrated on sip proxy server, to increase system reliability.
With reference to above-mentioned network disaster tolerance system, a kind of network disaster tolerance method that embodiments of the invention are provided is said
It is bright.
A kind of network disaster tolerance method is embodiments provided, is completed to SIP distribution agent apparatus events using the method
Barrier process flow process as shown in Fig. 2 including:
Step 201, a SIP distribution agent apparatus cannot process the service request for receiving when, by the business please
Ask and be handed over to the 2nd SIP distribution agent apparatus;
In this step, when SIP distribution agent apparatus are normal, SS sends sip message to SIP distribution agency's dresses
Put, now to be seen that distribution policy needs the master application server being distributed to (for convenience, by SIP distribution agency's dresses
Application server under putting is referred to as master application server, is distributed under agent apparatus with the master application server each other with the 2nd SIP
The application server of alternate device is the application server of backup;In fact, the application service under SIP distribution agent apparatus
Application server under device and the 2nd SIP distribution agent apparatus backups each other equipment, under the 2nd SIP distribution agent apparatus
For application server, the application server also for backup of the application server under SIP distribution agent apparatus) whether just
Often, the master application server being distributed to if normal, is otherwise distributed to the application server processes of backup.
When main SIP distribution agent apparatus are abnormal, SS sends sip message and distributes agent apparatus to the 2nd SIP, now sees point
Sending out strategy needs whether the master application server being distributed to is normal, and the master application server being distributed to if normal otherwise divides
It is dealt into the application server processes of backup.
Specifically, the service request is specially IMS network or NGN networks and sends out to SIP distribution agent apparatus
The incoming call request for going out, it is described when SIP distribution agent apparatus cannot process the service request for receiving, please by the business
Ask be handed over to the 2nd SIP distribution agent apparatus be specially:
When SIP distribution agent apparatus are abnormal, a SIP distributes agent apparatus not to the IMS nets
Network or NGN networks are responded to the link detecting request that SIP distribution agent apparatus send, to indicate the IMS
Network or NGN networks send incoming call request to the 2nd SIP distributions agent apparatus for responding the link detecting request
Or, the service request is specially IMS network or NGN networks distributes what agent apparatus sent to a SIP
Incoming call is asked, and a SIP distributes agent apparatus when processing the service request for receiving, and the service request is moved
Hand over to the 2nd SIP distribution agent apparatus and be specially:
When whole application servers that a SIP distributes under agent apparatus are abnormal, exhaled described by soft switch
Enter request and be switched to the 2nd SIP distributions agent apparatus.
Or, the service request is specially IMS network or NGN networks distributes what agent apparatus sent to a SIP
Incoming call is asked, described when SIP distribution agent apparatus cannot process the service request for receiving, and the service request is moved
Hand over to the 2nd SIP distribution agent apparatus and be specially:
When a SIP distributes and the application server exception of the incoming call request is processed under agent apparatus, will be described
Incoming call request is forwarded to the stand-by equipment of the application server under second sip server.
Or, the active that the application server that the service request is specially under the SIP distributions agent apparatus sends
Outgoing call, it is described when SIP distribution agent apparatus cannot process the service request for receiving, the service request is handed over to
2nd SIP distribution agent apparatus are specially:
(such as link detecting is asked when the application server detects the SIP distributions agent apparatus exception
Without response), the application server sends exhalation request to the 2nd SIP distribution agent apparatus.
Step 202, the 2nd SIP distribution agent apparatus process the business that the SIP distributions agent apparatus are transferred
Request;
In this step, the 2nd SIP distribution agent apparatus or the application server under which complete SIP distribution agent apparatus
The service request of transfer.
Below in conjunction with the accompanying drawings, embodiments of the invention two are illustrated.
A kind of network disaster tolerance system is embodiments provided, in order to solve the above problems, present invention also offers one
Plant and the disaster tolerance system that agent apparatus are realized is distributed by SIP, as shown in figure 3, including:
The SIP distribution agent apparatus of two places office point and application server difference are some.A office points include SIP distribution agency's dresses
Put 1, application server 1 and application server 2 (application server under actually SIP distribution agent apparatus can be more, herein for
Facilitate explanation, by taking two application servers as an example) one system of composition, finishing service process;Another ground B office points have SIP point
Agent apparatus 2, application server 1 ' and application server 2 ' are sent out, a system, finishing service process is constituted.
Wherein, there are SIP distribution agent apparatus link detection modules on SIP distributions agent apparatus, SIP distribution agent apparatus begin
Need eventually and the backup application server of application server thereafter and these application servers keeps link detection mechanism, obtain
Take the whether normal information of application server.
Wherein, there are OPTIONS link detection mechanisms on application server, keep examining the link for reaching all SS
Survey, or the whether normal information of all links.
Preferably, the backup SIP distribution agent apparatus that SIP discharge devices 1 can be configured on A ground interface are SIP distributions
Equipment 1 ', the backup application server of application server 1 are configured to application server 1 ', the back-up application clothes of application server 2
Business device is configured to application server 2 ';Simultaneously on B ground, the backup SIP distribution agent apparatus of SIP discharge devices 1 ' are SIP distributions
Equipment 1, the backup application server of application server 1 ' are configured to application server 1, the back-up application clothes of application server 2 '
Business device is configured to application server 2.SIP distribution agent apparatus in the correspondence embodiment of the present invention one of SIP discharge devices 1
101;The 2nd SIP distribution agent apparatus 103 in the correspondence embodiment of the present invention one of SIP discharge devices 1 '.
Embodiments provide reliable carrying out safety backup mechanism, in the case of not increase equipment, two places office point
Application server and SIP distribution agent apparatus mutually back up, when there is the condition of a disaster, switch over automatically, it is ensured that business it is normal
Carry out, to ensure the normal operation of network to greatest extent.
Below in conjunction with the accompanying drawings and be embodied as describe in detail technical scheme, be further understood that the present invention
Purpose, scheme and effect, but it is not intended as the restriction to scope of the appended claims of the present invention.
With reference to Fig. 1, with simple networking illustrating to realize business disaster tolerance by SIP distribution agent apparatus in the present invention.Somewhere A
There are SIP distribution agent apparatus 1 and application server 1 in office point, and application server 2 constitutes a system, and finishing service process is another
There are SIP distribution agent apparatus 2 and application server 1 ' in ground B office points, and application server 2 ' constitutes a system, at finishing service
Reason.
SIP distribution agent apparatus 1 need and application server 1 all the time, application server 2, application server 1 ', using clothes
Business device 2 ' keeps link detection mechanism (ask by link detecting and respond).Similarly, SIP distributes agent apparatus 2 also all the time
Need and application server 1, application server 2, application server 1 ', application server 2 ' keeps link detection mechanism.
When normally working, A, B office point all each works, and does not interfere with each other;When occurring abnormal, message will by with send out
Mutually redundant another office point, office point of raw failure is processed.
With reference to Fig. 4, further illustrate in above-mentioned network disaster tolerance system, SIP distribution agent apparatus are using present invention enforcement
Disaster tolerance handling process during the SS incoming calls that the network disaster tolerance method that example is provided is realized:
Scene:The incoming call of IMS or NGN environment is asked, and when normal, incoming call is to as a example by A office points.
Assume that A ground occurs earthquake, the equipment of A office points has damage, wherein, it is divided into 1 exception of SIP distributions agent apparatus again, should
With 1,2 possible abnormal situation of server;SIP distributions agent apparatus 1 are normal, 1,2 all abnormal situation of application server;
SIP distributions agent apparatus 1 are normal, the situation of 1,2 partial destruction of application server.Wherein, 201,202,203,204 is SIP point
Send out agent apparatus 1 abnormal, 1,2 possible abnormal situation of application server;201,205,206,207 is SIP distribution agent apparatus 1
Normally, application server 1,2 all abnormal situations;201,208,209,210,211,212,213 is SIP distribution agent apparatus
1 is normal, the situation of 1,2 partial destruction of application server.214,215 is that SIP distributions agent apparatus 1 are normal, application server 1,2
Also situation when normal.
First, abnormal to SIP distributions agent apparatus 1, the situation that application server 1,2 may be abnormal is illustrated:
Step 401, IMS or NGN environment incoming call request, SIP distribution agent apparatus 1 of the incoming call to A office points when normal;
Step 402, equipment of the core network SS send detection message and distribute agent apparatus 1 to SIP, and SIP distribution agent apparatus 1 do not have
There is response, illustrate that SIP distribution agent apparatus 1 have been damaged, it is impossible to processing business;
Step 403, SS find that SIP distribution agent apparatus 1 have been damaged, and message is switched to the SIP distributions of B office points automatically
Agent apparatus 2;
Step 404, SIP are distributed agent apparatus 2 and message are given to application server 1 ' or application according still further to strategy distribution
Server 2 ' is processed, if application server 1 ', then sees whether application server 1 ' is normal, if normally, applies
Server 1 ', if abnormal, which backs up, that is, application server 1 is processed;For application server 2 ' is also such.
Below, normal to SIP distributions agent apparatus 1, the situation that application server 1,2 is all damaged is illustrated:
Step 401, IMS or NGN environment incoming call request, SIP distribution agent apparatus 1 of the incoming call to A office points when normal;
Step 405, equipment of the core network SS send detection message and distribute agent apparatus 1 to SIP, and SIP distributions agent apparatus 1 are certainly
Oneself is good in itself, but SIP distribution agent apparatus 1 find that application server thereafter does not all have heartbeat message, so SIP
Distribution agent apparatus 1 do not reply the detection message of SS, and SS has found do not have response, illustrates that all of application server has been damaged
Bad, situation has been damaged equivalent to SIP distribution agent apparatus 1, it is impossible to processing business;
Step 406, soft switch find that the SIP distribution all application servers below of agent apparatus 1 have been damaged, and automatically will
Message is switched to the SIP distribution agent apparatus 2 of B office points;
Step 407, SIP are distributed agent apparatus 2 and message are given to application server 1 ' or application according still further to ability distribution
Server 2 ' is processed
Below, normal to SIP distributions agent apparatus 1, the situation of 1,2 partial destruction of application server is illustrated:
Step 401, IMS or NGN environment incoming call request, SIP distribution agent apparatus 1 of the incoming call to A office points when normal;
Step 408, equipment of the core network SS send detection message and distribute agent apparatus 1 to SIP, and SIP distributions agent apparatus 1 are certainly
Oneself is good in itself, but SIP distribution agent apparatus 1 find 1 no heartbeat message of application server thereafter, application server
2 have heartbeat message, so SIP distributes the detection message of 1 response SS of agent apparatus, tell SS, and (SIP distributes agent apparatus for oneself
1) can use, SIP distribution agent apparatus 1 oneself judge that application server 1 is damaged, and application server 2 is normal;
Step 409, soft switch find that SIP distribution agent apparatus 1 can use, and transmit the message at SIP distribution agent apparatus 1
Reason;
Step 410, SIP are distributed agent apparatus 1 and make a look up available application server according to the distribution policy of configuration, send out
Now need to be assigned to application server 1 and process;
Step 411, SIP distribution agent apparatus 1 should be distributed to application server 1 and process, but application server 1 is
Jing is damaged, so finding standby application server 1 ' to process the message;
Step 412, SIP are distributed agent apparatus 1 and make a look up available application server according to the distribution policy of configuration, send out
Now need to be assigned to application server 2 and process;
Step 413, application server 2 are normal, then application server 2 processes the message.
Below, normal to SIP distributions agent apparatus 1, situation when application server 1,2 is also normal is illustrated:
Step 401, IMS or NGN environment incoming call request, SIP distribution agent apparatus 1 of the incoming call to A office points when normal;
Step 414, equipment of the core network SS send detection message and distribute agent apparatus 1 to SIP, and SIP distributions agent apparatus 1 are certainly
Oneself is good in itself, and SIP distribution agent apparatus 1 find that application server 1,2 thereafter has been also that i.e. A office points are all normal, this
Modal scene when being also typically no disaster.
Step 415, SIP distribution agent apparatus 1 are then strategically distributed to the process of application server 1 or 2.
With reference to Fig. 5, further illustrate in network disaster tolerance system provided in an embodiment of the present invention, SIP distribution agent apparatus
Realize disaster tolerance handling process during application server active outgoing call:
Step 501, equipment of the core network SS send sip request message and distribute agent apparatus to SIP, should select in principle
It is that main SIP distributes agent apparatus, i.e. SIP distributes agent apparatus 1, and SIP distribution agent apparatus 1 ' are backups;
Step 502, equipment of the core network SS send detection message and distribute agent apparatus 1 to SIP, and SIP distribution agent apparatus 1 should
Answer, explanation is normal;
Step 503, equipment of the core network SS send detection message and distribute agent apparatus 1 to SIP, and SIP distribution agent apparatus 1 do not have
There is response, explanation is to damage;
Step 504, equipment of the core network SS find that SIP distribution agent apparatus 1 are normal, then send sip request message
Distribute agent apparatus 1 to SIP.
Step 505, equipment of the core network SS find that SIP distribution agent apparatus 1 are to damage, then send sip request message
Distribute agent apparatus 1 ' to SIP.
Step 506, either SIP distribute agent apparatus 1 or SIP distribution agent apparatus 1 ', by sip request message outgoing call
To IMS or NGN networks, so as to disaster tolerance handling process during application server active outgoing call is realized by SIP distribution agent apparatus.
The network disaster tolerance method that embodiments of the invention are provided, can be in the provided analysis network disaster tolerance of embodiments of the invention
In system, when SIP distribution agent apparatus cannot process the service request for receiving, the service request is handed over to into the
Two SIP distribute agent apparatus, and the SIP distribution agent apparatus and the 2nd SIP distribute agent apparatus in normal work
After backup each other equipment, and agent apparatus distributed by the 2nd SIP process what the SIP distributions agent apparatus were transferred
Service request, realizes and distributes the abnormal quick response of agent apparatus to SIP, solves SIP distribution agent apparatus and breaks down
When cause the problem of the global paralysis of network.In the case of not increase equipment, the application server of two places office point and SIP distribute generation
Reason device is mutually backed up, and when there is the condition of a disaster, is switched over automatically, it is ensured that the normal development of business, to ensure to greatest extent
The normal operation of network.
One of ordinary skill in the art will appreciate that all or part of step of above-described embodiment can use computer journey
Realizing, the computer program can be stored in a computer-readable recording medium sequence flow process, and the computer program exists
On corresponding hardware platform, (such as system, unit, device etc.) is performed, upon execution, including the step of embodiment of the method it
One or its combination.
Alternatively, all or part of step of above-described embodiment can also realize using integrated circuit that these steps can
To be fabricated to integrated circuit modules one by one respectively, or the multiple modules or step in them are fabricated to into single integrated electricity
Road module is realizing.So, the present invention is not restricted to any specific hardware and software combination.
Each device/functional module/functional unit in above-described embodiment can adopt general computing device realize, it
Can concentrate on single computing device, it is also possible to be distributed on the network constituted by multiple computing devices.
Each device/functional module/functional unit in above-described embodiment realized using in the form of software function module and as
When independent production marketing or use, can be stored in a computer read/write memory medium.Computer mentioned above
Read/write memory medium can be read only memory, disk or CD etc..
Any those familiar with the art the invention discloses technical scope in, can readily occur in change or
Replace, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the guarantor described in claim
Shield scope is defined.
Claims (10)
1. a kind of network disaster tolerance method, it is characterised in that include:
When the first Session initiation protocol SIP distribution agent apparatus cannot process the service request for receiving, by the business
Request is handed over to the 2nd SIP distribution agent apparatus, the SIP distribution agent apparatus and the 2nd SIP distribution agency's dresses
Putting equipment of backup each other after normal work;
The 2nd SIP distributions agent apparatus process the service request that the SIP distributions agent apparatus are transferred;
When SIP distribution agent apparatus are normal, the SIP for receiving is disappeared by SIP distribution agent apparatus according to distribution policy
Breath is distributed to the application server of master application server or backup;Wherein, master application server is SIP distribution agent apparatus
Under application server, the application server of backup is the application server under the 2nd SIP distribution agent apparatus;
Multiple application servers under the first SIP distributions agent apparatus are distributed many under agent apparatus with the 2nd SIP
Individual application server corresponds the equipment that backups each other.
2. network disaster tolerance method according to claim 1, it is characterised in that the service request is specially IP multimedia systems
System IMS network or next generation network network distribute the incoming call request that agent apparatus send to a SIP, described the
When one SIP distribution agent apparatus cannot process the service request for receiving, the service request is handed over to into the 2nd SIP distribution generations
Reason device is specially:
When SIP distribution agent apparatus are abnormal, the SIP distributions agent apparatus not to the IMS network or
NGN networks are responded to the link detecting request that SIP distribution agent apparatus send, to indicate the IMS network
Or NGN networks send incoming call request to the 2nd SIP distributions agent apparatus for responding the link detecting request.
3. network disaster tolerance method according to claim 1, it is characterised in that the service request be specially IMS network or
NGN networks distribute the incoming call request that agent apparatus send to a SIP, and SIP distribution agent apparatus are cannot
During the service request that process is received, the service request is handed over to into the 2nd SIP distribution agent apparatus and is specially:
When whole application servers that a SIP distributes under agent apparatus are abnormal, please by the incoming call by soft switch
Ask and be switched to the 2nd SIP distributions agent apparatus.
4. network disaster tolerance method according to claim 1, it is characterised in that the service request be specially IMS network or
NGN networks to a SIP distribute agent apparatus send incoming call request, it is described a SIP distribution agent apparatus cannot
During the service request that process is received, the service request is handed over to into the 2nd SIP distribution agent apparatus and is specially:
When a SIP distributes and the application server exception of the incoming call request is processed under agent apparatus, by the incoming call
Request is forwarded to the stand-by equipment of the application server under second sip server.
5. network disaster tolerance method according to claim 1, it is characterised in that the service request is specially described first
The active outgoing call that application server under SIP distribution agent apparatus sends, it is described to process in SIP distribution agent apparatus
During the service request for receiving, the service request is handed over to into the 2nd SIP distribution agent apparatus and is specially:
The application server detect SIP distribution agent apparatus it is abnormal when, the application server is to described
2nd SIP distribution agent apparatus send exhalation request.
6. network disaster tolerance method according to claim 1, it is characterised in that the method also includes:
The first SIP distribution agent apparatus are detected by link detection mechanism to be distributed under agent apparatus with the 2nd SIP
The connection of multiple application servers, the 2nd SIP distribution agent apparatus are by link detection mechanism detection and described the
The connection of the multiple application servers under one SIP distribution agent apparatus.
7. a kind of network disaster tolerance system, it is characterised in that distribute agent apparatus and second including the first Session initiation protocol SIP
SIP distributes agent apparatus, SIP distribution agent apparatus and the 2nd SIP distribution agent apparatus normal work it
The remaining equipment that backups each other;
First SIP distributes agent apparatus, for when processing the service request for receiving, the service request being moved
Hand over to the 2nd SIP and distribute agent apparatus;
2nd SIP distributes agent apparatus, for processing the service request that the SIP distributions agent apparatus are transferred;
When SIP distribution agent apparatus are normal, the SIP for receiving is disappeared by SIP distribution agent apparatus according to distribution policy
Breath is distributed to the application server of master application server or backup;Wherein, master application server is SIP distribution agent apparatus
Under application server, the application server of backup is the application server under the 2nd SIP distribution agent apparatus;
The system also distributes multiple application servers and the 2nd SIP distribution under agent apparatus including a SIP
Multiple application servers under agent apparatus, the multiple application servers under SIP distribution agent apparatus and described the
Multiple application servers under two SIP distribution agent apparatus correspond the equipment that backups each other.
8. network disaster tolerance system according to claim 7 a, it is characterised in that SIP distributes agent apparatus, specifically
For when SIP distribution agent apparatus are abnormal, a SIP distributes agent apparatus not to IP multimedia systems
IMS network or next generation network network are rung to the link detecting request that SIP distribution agent apparatus send
Should, to indicate the IMS network or NGN networks to the 2nd SIP distributions agent apparatus for responding the link detecting request
Send incoming call request;Or,
When whole application servers that a SIP distributes under agent apparatus are abnormal, please by the incoming call by soft switch
Ask and be switched to the 2nd SIP distributions agent apparatus;Or,
When a SIP distributes and the application server exception of the incoming call request is processed under agent apparatus, by the incoming call
Request is forwarded to the stand-by equipment of the application server under second sip server.
9. network disaster tolerance system according to claim 7, it is characterised in that
Application server under the first SIP distributions agent apparatus, for detecting described first in the application server
When SIP distribution agent apparatus are abnormal, exhalation request is sent to the 2nd SIP distribution agent apparatus.
10. the network disaster tolerance system according to any one of claim 7~9, it is characterised in that
First SIP distributes agent apparatus, is additionally operable to detect and the 2nd SIP distribution agency's dresses by link detection mechanism
The connection of the multiple application servers under putting;
2nd SIP distributes agent apparatus, is additionally operable to detect and SIP distribution agency's dresses by link detection mechanism
The connection of the multiple application servers under putting.
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PCT/CN2012/072342 WO2012155629A1 (en) | 2011-07-21 | 2012-03-14 | Network disaster recovery method and system |
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