CN1996826A - Method, system and soft switch device for dual-homing - Google Patents
Method, system and soft switch device for dual-homing Download PDFInfo
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Abstract
This invention discloses one system to realize double belongings, which comprises media network gate and other flexible exchange devices virtual flexible exchange unit device in the system, wherein, the virtual flexible exchange unit is stored with other flexible exchange device business data with virtual flexible exchange unit device. This invention also discloses one flexible exchange device with virtual flexible exchange unit and one method to realize double belongs.
Description
Technical field
The present invention relates to double-attaching technology, particularly a kind of dual-homed method, system and Softswitch realized.
Background technology
Along with Softswitch technology use extensive gradually, receive more and more widely concern with calling out Softswitch technology that control separates with media gateway.In flexible exchanging network based on Softswitch technology, the soft switch call control device, it is higher to be also referred to as the residing position of Softswitch, and coverage is bigger, and when Softswitch broke down, professional on a large scale can the interruption had a strong impact on the reliability of network.In order to guarantee the safe and reliable of the network operation, realize the long-distance disaster of Softswitch by dual-homed solution, promptly a media gateway is subordinated to two Softswitch, one is main home soft exchange device, one is from home soft exchange device, and this media gateway can provide service by in two affiliated Softswitch any one.
In the prior art, two of independent operating dual-homed each other backups of Softswitch on the network.Under normal circumstances, two Softswitch are distinguished independent process signaling-information and business; When one of them Softswitch broke down, the another one Softswitch was born the work of fault Softswitch fully, guaranteed the normal operation of network.
Edition 4 (R4) network architecture with the existing application Softswitch technology is an example, and Softswitch wherein is Mobile Switching Center Server (MSC Server).Fig. 1 shows the double attaching system structure of Softswitch in the prior art, as shown in Figure 1, in the double attaching system of MSC Server, two independently MSC Server composition is dual-homed, as the main home soft exchange device of different media gateway (MGW) with from home soft exchange device, realize the mutual disaster tolerance between two end office (EO)s respectively.Monitor the operating state of main home soft exchange device in real time by the heartbeat link from home soft exchange device, when one of them Softswitch, in the time of setting, do not receive the handshake information of a MSCServer as the 2nd MSC Server, judge the MSC Server machine of having delayed.This moment, the 2nd MSC Server business of taking over a MSC Server was called out and the control service for a MGW and the 2nd MGW provide.
Among Fig. 1 solid line be depicted as between MGW and the main home device signal flow to, wherein, a MSC Server is the main home soft exchange device of a MGW and the 2nd MGW, the 2nd MSCServer is the main home soft exchange device of the 3rd MGW and the 4th MGW.With a MSC Server is example, and when a MSC Server was working properly, a MGW and the 2nd MGW were registered to a MSC Server, calling is provided and controls service for the user of a MGW and the 2nd MGW management by a MSC Server; Among Fig. 1 dotted line be depicted as MGW and from the signal flow between the home device to, two MSC Server monitor the other side's operating state in real time by the heartbeat link, when monitoring master's ownership MSC Server operation irregularity, from belonging to the registration that MSC Server receives the MGW that independently belongs to the MSCServer management, take over the business of the main MSC of ownership Server.With the 2nd MSCServer is example, the 2nd MSC Server be a MGW and the 2nd MGW from home soft exchange device, when the 2nd MSC Server monitors a MSC Server operation irregularity, switch oneself state to the dual-homing switchover state, load self and back up the data of a MSC Server who has, carry out dual-homing switchover.The one MGW and the 2nd MGW are registered to the 2nd MSC Server after monitoring link down between self and the MSC Server, are called out and the control service for the user of a MGW and the 2nd MGW management provides by the 2nd MSC Server; In like manner, the 2nd MSC Server is the main home soft exchange device of the 3rd MGW and the 4th MGW, a MSC Server be the 3rd MGW and the 4th MGW from home soft exchange device.
In existing double-attaching technology,, can also adopt the manual switchover mode to carry out dual-homing switchover except that triggering the dual-homing switchover by the real-time state monitoring between the Softswitch.In Softswitch, be provided with state machine, be used to control the state of Softswitch.By the state machine of manual configuration Softswitch,, force to carry out dual-homing switchover for Softswitch is provided with operating state.As, will lead ownership and be configured to the attitude that dallies, promptly the business of self is taken over by the another one Softswitch, will be configured to the dual-homing switchover state from home soft exchange device, promptly allows to carry out dual-homing switchover, finishes manual reversed process.
At present, usually be provided with a plurality of Softswitch in the flexible exchanging network, and the dual-homed solution of existing Softswitch can only realize long-distance disaster between two Softswitch, and promptly one can only provide backup for a main home soft exchange device from home soft exchange device.The scope that ensures from home soft exchange device is little, and utilization rate of equipment and installations is low, causes bigger device resource waste, the emphasis network cost.
Softswitch in the existing dual-homed solution is not distinguished the professional and business of playing a game to local exchange, but the mode of employing integrated management, storage, loading and the transmission passage of different Softswitch all can't be independent, are unfavorable for the management of Softswitch business.In addition, in existing Softswitch, utilize a state machine to describe the dual-homed state of different Softswitch, when carrying out dual-homed switching, cause different Softswitch to fight for the phenomenon of control of business easily, cause the switching services confusion.
Summary of the invention
In view of this, the embodiment of the invention proposes a kind of dual-homed method that realizes, is used for realizing that Softswitch carries out service data interaction with other Softswitch subordinate's of dual-home network media gateway respectively.
The embodiment of the invention proposes a kind of dual-homed system that realizes, in order to realize Softswitch respectively with dual-home network in other Softswitch subordinate's media gateway carry out service data interaction.
The embodiment of the invention proposes a kind of Softswitch that is applied to dual-home network, with so that Softswitch can be respectively with dual-home network in other Softswitch subordinate's media gateway carry out service data interaction.
In order to achieve the above object, the technical scheme of the embodiment of the invention is achieved in that
A kind ofly realize dual-homed system, comprise media gateway in this system and have the Softswitch of the virtual soft switch unit of other Softswitch in the corresponding double attaching system, store the business datum of corresponding other Softswitch in this virtual soft switch unit,
Described Softswitch with virtual soft switch unit, other Softswitch is used for when need be switched, the business datum of storing in the dual-homed equipment corresponding virtual soft switch unit that utilizes described needs to switch, the Softswitch subordinate's who switches with described needs all or part of media gateway is carried out the mutual of business datum, takes over all or part of business of the Softswitch that described needs switch;
Described media gateway is used for carrying out the mutual of business datum with described Softswitch with virtual soft switch unit.
A kind ofly realize dual-homed method, be provided with Softswitch, the virtual soft switch unit that comprises other Softswitch in the corresponding double attaching system in this Softswitch stores the business datum of corresponding other Softswitch in this virtual soft switch unit, this method comprises:
When other Softswitch need be switched, the business datum of storing in the Softswitch corresponding virtual soft switch unit that utilization need be switched, all or part of business of the Softswitch that adapter need be switched.
A kind of Softswitch comprises control unit and at least one virtual soft switch unit, stores the business datum of corresponding other Softswitch in this virtual soft switch unit, wherein,
Control unit sends starting command to virtual soft switch unit;
Virtual soft switch unit, the starting command of reception control unit, all or part of business of taking over other corresponding Softswitch.
From such scheme as can be seen, owing to be provided with the virtual soft switch unit of corresponding other Softswitch in the Softswitch of the embodiment of the invention, store the business datum of corresponding other Softswitch in this virtual soft switch unit, thereby make Softswitch provide disaster tolerance and/or load sharing for other Softswitch in the one or more network simultaneously, and can provide service for Softswitch subordinate's part or all of media gateway, further improved the fail safe of network, and made full use of Internet resources, saved network cost.In addition, the Softswitch in the embodiment of the invention can carry out independent management to each virtual soft switch unit, has realized the play a game traffic differentiation management professional and different to local exchange.
Description of drawings
Fig. 1 is the schematic diagram of the double attaching system structure of Softswitch in the prior art;
Fig. 2 realizes dual-homed overview flow chart in the embodiment of the invention;
Fig. 3 is a schematic diagram of realizing embodiment one structure of dual-homed system in the embodiment of the invention;
Fig. 4 is a schematic diagram of realizing embodiment two structures of dual-homed system in the embodiment of the invention;
Fig. 5 is a schematic diagram of realizing embodiment three structures of dual-homed system in the embodiment of the invention;
Fig. 6 is the schematic diagram of the internal structure of Softswitch in the embodiment of the invention.
Embodiment
Core concept of the present invention is: the virtual soft switch unit that other Softswitch in the corresponding dual-home network is set on Softswitch, store the business datum of corresponding other Softswitch in this virtual soft switch unit, thereby make Softswitch provide disaster tolerance and/or load sharing for other Softswitch in the one or more network simultaneously.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in more detail below in conjunction with embodiment.
Fig. 2 shows the present invention and realizes dual-homed overview flow chart.As shown in Figure 2, realize that dual-homed method comprises:
Step 210: the Softswitch with virtual soft switch unit detects the running status of other Softswitch in the dual-home network in real time.
Wherein, the number of other Softswitch can be N, and N is the integer greater than 1, as 1,2,3 ...Softswitch with virtual soft switch unit can be by the running status of other Softswitch of heartbeat link detecting.
Step 220: have the running status of the Softswitch of virtual soft switch unit, judge whether other Softswitch needs to switch according to other Softswitch, if desired, and execution in step 230, if do not need, execution in step 210.
Other Softswitch need be switched and be meant that this Softswitch can't provide access service for its subordinate's media gateway; may be because this Softswitch work occurs unusual or this Softswitch need be upgraded and stop service; the live load that also might be this Softswitch is overweight, can't provide service for more media gateway again.That is to say that in the present invention, the Softswitch with virtual soft switch unit can think that other Softswitch provides disaster tolerance and backup, can also work in the mode of load sharing with other Softswitch.
Step 230: have all or part of business that the dual-homed equipment of dummy unit is taken over the dual-homed equipment that need switch.
Wherein, when other Softswitch need be switched, have in the Softswitch of virtual soft switch unit, carry out the mutual of business datum, all or part of business of the Softswitch that adapter need be switched by virtual soft switch unit and the Softswitch subordinate's that need switch all or part of media gateway.The professional virtual soft switch unit of this adapter is the Softswitch corresponding virtual soft switch unit of switching with needs.
In the present invention, the number of virtual soft switch unit can be N+1, wherein N is the integer greater than 1, identical with the number of other Softswitch in the dual-home network, promptly a Softswitch can be taken over N Softswitch business, in addition, the professional virtual soft switch of a management local exchange unit can also be set in the Softswitch, mutual with Softswitch subordinate's media gateway.
Be example with the R4 group-network construction below, the method and system dual-homed to the realization in the embodiment of the invention describes.In the R4 network, Softswitch is MSC Server, and media gateway is MGW.
Fig. 3 shows the structure of the double attaching system embodiment one of Softswitch in the embodiment of the invention.As shown in Figure 3, in the double attaching system of present embodiment, comprise the MSC Server that is provided with virtual soft switch unit and the 2nd MSC Server and four MGW that are positioned at different regions.Wherein, the number of virtual soft switch unit is 2 among a MSC Server and the 2nd MSC Server, and one of them is responsible for the local exchange business, and another one is responsible for the business of playing a game.
Two Softswitch disaster tolerance and backups each other, when promptly a MSC Server was main home soft exchange device, the 2nd MSC Server was from home soft exchange device; When the 2nd MSC Server was main home soft exchange device, a MSC Server was from home soft exchange device.
Wherein, the main home soft exchange device that is positioned at first and second MGW of region 1 and is positioned at the 3rd MGW of region 2 is a MSC Server, is the 2nd MSCServer from home soft exchange device.The main home soft exchange device of the 4th MGW is the 2nd MSC Server, is a MSC Server from home soft exchange device.
In addition, dispose special-purpose heartbeat link between two Softswitch and transmit handshake information, be used for monitoring mutually between the Softswitch operating state each other.
When main home soft exchange device is working properly, main home soft exchange device and finish the local exchange business separately from home soft exchange device.Shown in solid line among Fig. 3, when working properly, a MSC Server and the 2nd MSC Server manage the business of self respectively, and MGW is linked in the soft switch of corresponding main ownership.When among a MSC Server or the 2nd MSC Server any one can't provide access service, as shown in phantom in Figure 3, the MSC Server that access service can't be provided with self switching services to accordingly from ownership MSC Server.The business of main ownership MSC Server is taken in corresponding virtual soft switch unit from ownership MSC Server, carries out the exchange of data service with main ownership MSC Server subordinate's MGW.
Among the present invention, between home soft exchange device and main home soft exchange device, utilize prior art to switch, need switch with a MSC Server and to be example, when a MSC Server can't provide access service, heartbeat link down between the 2nd a MSC Server discovery self and the MSC Server, the virtual soft switch unit of then being responsible for the business of playing a game among the 2nd MSC Server loads the business datum of a MSC Server who self stores, prepares for carrying out dual-homing switchover; The one MSC Server subordinate's MGW finds the communication disruption between the main ownership MSC Server corresponding with self, and then a MSC Server subordinate MGW sends register requirement to the 2nd MSC Server; When management among the 2nd MSCServer play a game professional virtual soft switch unit carry out switch preparation after, receive the register requirement of MGW, finish the dual-homing switchover process to the 2nd MSC Server by a MSC Server.After finishing dual-homing switchover, first, second MGW and the 3rd MGW will insert the virtual soft switch unit that data send to the management business of playing a game among the 2nd MSC Server, the virtual soft switch unit of the management business of playing a game receives the access data that above-mentioned MGW sends among the 2nd MSC Server, carries out the mutual of data service with above-mentioned MGW.
In the embodiment shown in fig. 3, can not have the local exchange business, only provide backup and/or load sharing for main home soft exchange device from home soft exchange device.
Double attaching system with Softswitch shown in Figure 3 is an example below, and the dual-homed implementation method of Softswitch is described.
At first, from the operating state of the main home soft exchange device of the real-time monitoring of home soft exchange device,, then take over the business of main home soft exchange device from home soft exchange device as if main home soft exchange device operation irregularity.In the present embodiment, the one MSC Server and the 2nd MSC Server be principal and subordinate's Softswitch each other, by the heartbeat link between two MSC Server, monitoring operating state each other judges whether to carry out dual-homing switchover according to existing method in real time.
When not needing to carry out dual-homing switchover, as main home soft exchange device when working properly, the master that backups each other belongs to and finishes the local exchange business respectively from home soft exchange device, with a MSC Server is example, when a MSC Server is working properly, the 3rd MGW that is positioned at a MGW and the 2nd MGW of region 1 and is positioned at region 2 is registered on the MSC Server, carry out between the virtual soft switch unit of management local exchange business and a MGW, the 2nd MGW and the 3rd MGW among the MSC Server local exchange business datum alternately.
When needs carry out dual-homing switchover, during as main home soft exchange device operation irregularity, take over the business of main home soft exchange device accordingly from home soft exchange device.With a MSC Server operation irregularity is example, when the 2nd MSC Server monitors a MSC Server operation irregularity, the 2nd MSCServer sends the virtual soft switch unit of starting command to the management business of playing a game, the business of taking over a MSC Server by this virtual soft switch unit, a MGW and the 2nd MGW and the link down between the 3rd MGW of region 2 discovery self and a MSC Server in region 1, then be registered on the 2nd MSC Server the virtual soft switch unit and a MGW of the management business of playing a game among the 2nd MSC Server, carry out the mutual of business datum between the 2nd MGW and the 3rd MGW.In like manner, when the 2nd MSC Server operation irregularity, the business by the 2nd MSC Server is taken in the virtual soft switch unit of the business of playing a game of management among the MSC Server does not repeat them here.
In addition, under the situation of main home soft exchange device operation irregularity, the part of media gateway work under this main home soft exchange device management also takes place when unusual, by providing service from home soft exchange device for part media gateway working properly.Situation with a MSC Server operation irregularity is an example, suppose to work owing to reasons such as the loss of power accident cause the MGW and the 2nd MGW that are positioned at region 1, but the 3rd MGW that is positioned at region 2 is still working properly, then the 2nd MSC Server is when monitoring a MSC Server operation irregularity, reception is from the register requirement of the 3rd MGW, and the virtual soft switch unit and the 3rd MGW that are played a game by management among the 2nd MSCServer carry out the mutual of business datum.A MGW of region 1 and the 2nd MGW be not registered to the 2nd MSC Server do not influence management among the 2nd MSC Server play a game in professional virtual soft switch unit and the region 2 between the 3rd MGW alternately.
In the present embodiment, have the virtual soft switch unit of management local exchange business and management current political situation business in the Softswitch respectively, carrying out the dual-homing switchover front and back, the relation between the business of different Softswitch management remains unchanged.Switching services to the two MSC Server with a MSC Server are example, before switching, calling between the one MSC Server and the 2nd MSC Server is station to station call, after the business of a MSC Server is switched, the management business that a MSC Server is taken in professional virtual soft switch unit of playing a game on the 2nd MSC Server, then the calling between the virtual soft switch unit of the virtual soft switch unit of a corresponding MSC Server on the 2nd MSC Server and corresponding the 2nd MSC Server business is station to station call equally.
After main home soft exchange device is finished dual-homing switchover, with a MSC Server is example, the ticket of former cause the one MSC Server management will generate in the charging gateway of the 2nd MSC Server, so search CDR file on the respective directories of charging center on the charging gateway address of reading CDR file times to the two MSC Server.
When main home soft exchange device work recovers just often, the business of main home soft exchange device is switched by the virtual soft switch unit from home soft exchange device and is got back on the main home soft exchange device.With a MSC Server is example, recover just often in MSC Server work, the 3rd MGW that is positioned at a MGW and the 2nd MGW of region 1 and is positioned at region 2 re-registers on the MSCServer, and corresponding business is also switched back on the MSC Server by the professional virtual soft switch unit of playing a game of management among the 2nd MSC Server.In like manner, when the 2nd MSC Server work recovers just often, the 4th MGW that is positioned at region 3 re-registers on the 2nd MSC Server, and corresponding business is also switched back on the 2nd MSC Server by the virtual soft switch unit of the business of playing a game of management among the MSC Server.
In the present embodiment, dual-homing switchover also can be forced to finish by manually switching order.Because the Softswitch in the embodiment of the invention is provided with independently virtual soft switch unit, each virtual soft switch unit all has independently state machine.When carrying out manual switchover, the state of the virtual soft switch unit of corresponding different Softswitch is provided with by different state machines, the state transition of the virtual soft switch unit of corresponding different Softswitch is not interacted, realize manually switching stably between the virtual soft switch unit of different Softswitch and corresponding different Softswitch.Suppose that a MSC Server need upgrade, in order to guarantee not interrupt the business of a MSC Server, by manually switching order the business of the one MSC Server is switched on the 2nd MSC Server, promptly the state machine of the one MSC Server is configured to the attitude that dallies by man-machine language, the state machine of a corresponding MSCServer is configured to the dual-homing switchover attitude among the 2nd MSC Server, thereby finishes the smooth transition of principal and subordinate's Softswitch.After MSC Server upgrading is finished, use man-machine language that a corresponding MSC Server among the one MSC Server and the 2nd MSC Server is configured to switch unactivated state, the switching services of the one MSCServer returns on the MSC Server, and the 2nd MSC Server only is responsible for the management of local exchange business.
In embodiments of the present invention, manually switch the situation that does not have the heartbeat link between the Softswitch that is applicable to.In application in practice, recommend to use auto switching, the mode of manually refunding, wherein auto switching can be finished switching services in the shortest time, avoids service disconnection, and hand-operated forced table tennis of refunding in the time of can avoiding unusual is switched.
Below in the embodiment of the invention one describe for a plurality of main home soft exchange device provide the situation of disaster tolerance and backup from home soft exchange device.
Fig. 4 shows the structure that realizes the embodiment two of double attaching system in the embodiment of the invention.As shown in Figure 4, in the flexible exchanging network of present embodiment, comprise three Softswitch, be respectively the first main ownership MSC Server, the second main ownership MSC Server with from ownership MSC Server and four MGW being positioned at different regions.Wherein, the number of virtual soft switch unit is 2 from ownership MSC Server, all is responsible for the business of playing a game.
In three Softswitch, do not comprise virtual soft switch unit in two main home soft exchange device, only and carry out the mutual of business datum between self subordinate MGW.From ownership MSC Server, be respectively arranged with respectively the first virtual soft switch unit and the second virtual soft switch unit, in the first virtual soft switch unit and the second virtual soft switch unit, store the business datum of corresponding different Softswitch at the first main ownership MSC Server and the second main ownership MSC Server.When corresponding main home soft exchange device can't provide access service, take over the business of main home soft exchange device by corresponding virtual soft switch unit from ownership MSC Server.
Wherein, the main home soft exchange device that is positioned at first and second MGW of region 1 and is positioned at the 3rd MGW of region 2 is the first main ownership MSC Server, is from ownership MSC Server from home soft exchange device.The main home soft exchange device that is positioned at the 4th MGW of region 3 is the second main ownership MSC Server, is from ownership MSC Server from home soft exchange device.
In addition, transmit handshake information, be used for monitoring the operating state of main home soft exchange device from home soft exchange device from disposing special-purpose heartbeat link between home soft exchange device and the main home soft exchange device.
When main home soft exchange device was working properly, main home soft exchange device was finished the local exchange business separately.Shown in solid line among Fig. 4, when working properly, the first main ownership MSC Server and the second main ownership MSC Server manage business separately respectively, and MGW is linked in the soft switch of corresponding main ownership.When any one or both among the first main ownership MSC Server or the second main ownership MSC Server can't provide access service simultaneously, as shown in phantom in Figure 4, the MSC Server that access service can't be provided with the switching services of self to from ownership MSC Server.The business of the different main ownership MSC Server of corresponding virtual soft switch unit adapter is carried out the mutual of data service with the main MGW that belongs to MSC Server subordinate from ownership MSC Server.The similar process of the process of dual-homing switchover and middle dual-homing switchover embodiment illustrated in fig. 3 does not repeat them here in the present embodiment.Wherein, when the first main ownership MSC Server can't provide access service, first, second MGW and the 3rd MGW and the first virtual soft switch unit from ownership MSC Server carried out the mutual of business datum.When the second main ownership MSC Server can't provide access service, the 4th MGW and the second virtual soft switch unit from ownership MSCServer carried out the mutual of business datum.
In the embodiment shown in fig. 4, what do not have the local exchange business can take over the business of two main home soft exchange device from home soft exchange device, this is a preferred embodiments of the present invention, it is not limitation of the present invention, in the present invention, what do not have the local exchange business can have N virtual soft switch unit from home soft exchange device, takes over the business of N main home soft exchange device, wherein N is the integer greater than 2, as 3,4,5 ...
Double attaching system with Softswitch shown in Figure 4 is an example below, describes realizing dual-homed method.
At first, from the operating state of two main home soft exchange device of the real-time monitoring of home soft exchange device,, then take over the business of main home soft exchange device from home soft exchange device as if main home soft exchange device operation irregularity.In the present embodiment, by self and two main heartbeat links that belong between the MSCServer, monitor the operating state of two main home soft exchange device in real time, judge whether to carry out dual-homing switchover according to existing method from ownership MSC Server.
When not needing to carry out dual-homing switchover, when working properly, two main home soft exchange device are finished the business of self as main home soft exchange device.With the first main ownership MSC Server is example, when the first main ownership MSC Server is working properly, the 3rd MGW that is positioned at a MGW and the 2nd MGW of region 1 and is positioned at region 2 is registered on the first main ownership MSC Server, carries out the mutual of business datum with the first main ownership MSC Server.
When needs carry out dual-homing switchover, during as the virtual Softswitch operation irregularity of main ownership, the business of main home soft exchange device is taken in corresponding virtual soft switch unit from home soft exchange device.With the first main ownership MSC Server operation irregularity is example, when monitoring first master's ownership MSC Server operation irregularity from belonging to MSC Server, from belonging to MSC Server according to the virtual soft switch unit index that pre-sets, finding the virtual soft switch unit that mates with the first main ownership MSC Server is the first virtual soft switch unit, subordinate MSC Server sends the first virtual soft switch unit of starting command to self, take over the business of the first main ownership MSC Server by this virtual soft switch unit, a MGW and the 2nd MGW and the link down between the 3rd MGW of region 2 discovery self and the first main ownership MSC Server in region 1, then be registered to from ownership MSC Server the first virtual soft switch unit and a MGW, the 2nd MGW and the 3rd MGW carry out the mutual of business datum.In like manner, when second master's ownership MSC Server operation irregularity, take over the business of the second main ownership MSC Server by the second virtual soft switch unit, when the first main ownership MSC Server and second master's ownership MSC Server while operation irregularity, business by different main ownership MSC Server are taken in corresponding virtual soft switch unit does not repeat them here.
As seen, owing to from home soft exchange device, have an independently virtual soft switch unit in the embodiment of the invention, can carry out different management at the operating state of different main home soft exchange device.From the business that home soft exchange device can be taken over any one Softswitch, the business that also can take over a plurality of Softswitch simultaneously.
In addition, under the situation of main home soft exchange device operation irregularity, the part of media gateway work under this main home soft exchange device management also takes place when unusual, by providing service from home soft exchange device for part media gateway working properly accordingly.Situation with the first main ownership MSC Server operation irregularity is an example, suppose to work owing to reasons such as the loss of power accident cause the MGW and the 2nd MGW that are positioned at region 1, but the 3rd MGW that is positioned at region 2 is still working properly, then from belonging to MSC Server when monitoring first master's ownership MSC Server operation irregularity, receive the register requirement of the 3rd MGW, the first main first virtual soft switch unit and the 3rd MGW that belongs to MSC Server carries out the mutual of business datum by management from ownership MSC Server.A MGW of region 1 and the 2nd MGW be not registered in virtual soft switch unit that the 2nd MSC Server do not influence the management first main ownership MSC Server from ownership MSC Server and the region 2 between the 3rd MGW alternately.
In the present embodiment, be provided with the different professional virtual soft switch unit of playing a game of management from ownership MSC Server, carrying out the dual-homing switchover front and back, the relation between the business of different Softswitch management remains unchanged.All being switched to from ownership MSC Server with the business of the first main ownership MSC Server and the 3rd main ownership MSC Server is example, before switching, calling between the first main ownership MSC Server and the 3rd main ownership MSC Server is station to station call, business at the first main ownership MSC Server and the 3rd main ownership MSC Server all is switched to behind ownership MSC Server, handle on the 2nd MSCServer, the calling between the first virtual soft switch unit and the second virtual soft switch unit is station to station call equally.
After main home soft exchange device is carried out dual-homing switchover, with the first main ownership MSC Server is example, the ticket of the former cause first main ownership MSC Server management will generate from the charging gateway of ownership MSC Server, so CDR file is searched to the respective directories from the charging gateway address of ownership MSC Server in the charging center when reading CDR file.
Recover just often when main ownership MSC Server works, the business of main ownership MSC Server is switched by the virtual soft switch unit from ownership MSC Server and is got back on master's ownership MSC Server.With the first main ownership MSC Server is example, recover just often in the first main ownership MSC Server work, the 3rd MGW that is positioned at a MGW and the 2nd MGW of region 1 and is positioned at region 2 re-registers on the first main ownership MSC Server, and corresponding business is also by switching back on the first main MSC of the ownership Server from the first virtual soft switch unit of ownership MSC Server.In like manner, when the second main ownership MSCServer recovers just often, the 4th MGW that is positioned at region 3 re-registers on the second main ownership MSCServer, and corresponding business is also by switching back from the second virtual soft switch unit of ownership MSC Server on the second main ownership MSC Server.
In the present embodiment, dual-homing switchover also can be forced to finish by manually switching order.Because the Softswitch in the embodiment of the invention is provided with independently virtual soft switch unit, each virtual soft switch unit all has independently state machine.When carrying out manual switchover, the state of the virtual soft switch unit of corresponding different main home soft exchange device is provided with by different state machines, the state transition of the virtual soft switch unit of corresponding different Softswitch is not interacted, realize manually switching stably between the virtual soft switch unit of different Softswitch and corresponding different Softswitch.Suppose that the first main ownership MSC Server and the second main ownership MSC Server all need to upgrade, in order to guarantee not interrupt the business of the first main ownership MSC Server and the second main ownership MSC Server, respectively the state machine of the first main ownership MSC Server and the second main ownership MSC Server is configured to the attitude that dallies by manually switching order, the state machine of the virtual soft switch unit of the corresponding first main ownership MSC Server and the second main ownership MSCServer is configured to the dual-homing switchover attitude from ownership MSC Server, thereby finishes the smooth transition of principal and subordinate's Softswitch.After the first main ownership MSC Server and the second main ownership MSC Server upgrading are finished, with the first main ownership MSC Server, the second main ownership MSC Server and from ownership MSC Server the state machine of the virtual soft switch unit of the corresponding first main ownership MSC Server and the second main ownership MSC Server all be configured to switch unactivated state, the first main ownership MSC Server and the second main ownership MSC Server manage the business of self separately.
In an embodiment, can have the virtual soft switch unit of two different Softswitch of correspondence from home soft exchange device, each virtual soft switch unit all comprises the state machine of controlling oneself state.When manually switching, the switching between the state machine of different virtual soft switch unit is independent of each other.For example, the corresponding first main state switching that belongs to the MSC Server and the state machine of the virtual soft switch unit of the corresponding second main ownership MSC Server is independent of each other, the control of business confusion can not take place in the business from ownership MSC Server can take over the first main ownership MSC Server and the second main ownership MSC Server simultaneously.
What do not have the local exchange business in embodiment illustrated in fig. 4 is provided with N virtual soft switch unit from home soft exchange device, when taking over N main home soft exchange device professional, realize that from home soft exchange device and main home soft exchange device dual-homed method is similar to present embodiment, do not repeat them here.
Fig. 5 shows the structure that realizes the embodiment three of double attaching system in the embodiment of the invention.As shown in Figure 5, comprising three Softswitch that are provided with separate virtual soft switch unit in flexible exchanging network, is respectively a MSC Server, the 2nd MSC Server and the 3rd MSC Server and five MGW being positioned at different regions.Wherein, the number of virtual soft switch unit is 3 among the 2nd MSC Server, and one of them is responsible for the local exchange business, and two other is responsible for the business of playing a game; The number of virtual soft switch unit is 2 among the 3rd MSC Server, and one of them is responsible for the local exchange business, and another one is responsible for the business of playing a game.
In three Softswitch, do not comprise virtual soft switch unit among the one MSC Server, comprise the virtual soft switch unit that stores a MSC Server and the 3rd MSC Server business datum respectively among the 2nd MSC Server, comprise the virtual soft switch unit that stores the 2nd MSC Server business datum among the 3rd MSC Server.When a MSC Server was main home soft exchange device, the 2nd MSC Server was from home soft exchange device; Simultaneously the 2nd MSC Server and the 3rd MSCServer backup each other, and when promptly the 2nd MSC Server was main home soft exchange device, the 3rd MSCServer was from home soft exchange device; When the 3rd MSC Server was main home soft exchange device, the 2nd MSC Server was from home soft exchange device.Include the virtual soft switch unit that stores the local exchange business datum among the 2nd MSC Server and the 3rd MSC Server, and carry out the mutual of business datum between place Softswitch subordinate's the MGW.
Wherein, the main home soft exchange device that is positioned at first and second MGW of region 1 and is positioned at the 3rd MGW of region 2 is a MSC Server, is the 2nd MSCServer from home soft exchange device.The main home soft exchange device that is positioned at the 4th MGW of region 3 is the 2nd MSC Server, is the 3rd MSC Server from home soft exchange device.The main home soft exchange device that is positioned at the 5th MGW of region 4 is the 3rd main ownership MSC Server, is the 2nd MSCServer from home soft exchange device.
In addition, transmit handshake information, be used for monitoring the operating state of main home soft exchange device from home soft exchange device from disposing special-purpose heartbeat link between home soft exchange device and the main home soft exchange device.
When main home soft exchange device was working properly, main home soft exchange device was finished the local exchange business separately.Shown in solid line among Fig. 5, when working properly, with the 2nd MSC Server is example, when the 2nd MSC Server is working properly, the 4th MGW that is positioned at region 3 is registered on the 2nd MSC Server, carries out the mutual of business datum with the virtual soft switch unit of managing the local exchange business among the 2nd MSC Server.When main ownership MSC Server can't provide access service, as shown in phantom in Figure 5, the MSC Server that access service can't be provided with self switching services to from ownership MSC Server.The business of the different main ownership MSC Server of corresponding virtual soft switch unit adapter is carried out the mutual of data service with the main MGW that belongs to MSC Server subordinate from ownership MSC Server.The similar process of the process of dual-homing switchover and middle dual-homing switchover embodiment illustrated in fig. 3 does not repeat them here in the present embodiment.
The MSC Server that access service can't be provided with self switching services to from ownership MSCServer.The business of the different main ownership MSCServer of corresponding virtual soft switch unit adapter from ownership MSC Server is carried out the mutual of data service with the main MGW that belongs to MSC Server subordinate.Wherein, when a MSC Server can't provide access service, the virtual soft switch unit of a corresponding MSC Server carried out the mutual of business datum among first, second MGW and the 3rd MGW and the 2nd MSC Server; When the 2nd MSC Server can't provide access service, the virtual soft switch unit of corresponding the 2nd MSC Server carried out the mutual of business datum among the 4th MGW and the 3rd MSC Server; When the 3rd MSC Server can't provide access service, the virtual soft switch unit of corresponding the 3rd MSC Server carried out the mutual of business datum among the 4th MGW and the 2nd MSCServer.
In the embodiment shown in fig. 5, not only comprised the local exchange business but also comprise playing a game and professional provide disaster tolerance and backup for two main home soft exchange device from home soft exchange device, this is a preferred embodiments of the present invention, it is not limitation of the present invention, in the present invention, what have the local exchange business can have N+1 virtual soft switch unit from home soft exchange device, one of them takes over the local exchange business, the business of N main home soft exchange device is taken in the individual virtual soft switch unit of N in addition, wherein N is the integer greater than 2, as 3,4,5 ... Deng.
Double attaching system with Softswitch shown in Figure 5 is an example below, describes realizing dual-homed method.
At first, from the operating state of the main home soft exchange device of the real-time monitoring of home soft exchange device,, then take over the business of main home soft exchange device from home soft exchange device as if main home soft exchange device operation irregularity.In the present embodiment, when the 2nd MSC Server monitored a MSC Server operating state in real time by the heartbeat link, the 2nd MSC Server and the 3rd MSC Server were by the real-time monitoring of heartbeat link operating state each other.
When not needing to carry out dual-homing switchover, when working properly, main home soft exchange device is finished the local exchange business as main home soft exchange device.With the 2nd MSC Server is example, and when the 2nd MSC Server was working properly, the 4th MGW that is positioned at region 3 was registered on the 2nd MSC Server, carries out the mutual of business datum with the virtual soft switch unit of managing the local exchange business among the 2nd MSCServer.
When needs carry out dual-homing switchover, during as the virtual Softswitch operation irregularity of main ownership, take over the business of main home soft exchange device accordingly from home soft exchange device.With the 3rd MSC Server operation irregularity is example, when the 2nd MSC Server monitors the 3rd MSC Server operation irregularity, the 2nd MSC Server is according to the virtual soft switch unit index that pre-sets, search virtual soft switch unit with the 3rd MSC Server coupling, and send starting command to this virtual soft switch unit, order it to take over the business of the 3rd MSC Server, link down between the 5th MGW of region 4 discovery self and the 3rd MSCServer, then be registered on the 2nd MSC Server, carry out the mutual of business datum with the virtual soft switch unit of managing the 3rd MSC Server business among the 2nd MSC Server.In like manner, when the 3rd MSC Server monitors the 2nd MSC Server operation irregularity, the 3rd MSC Server is according to the virtual soft switch unit index that pre-sets, search virtual soft switch unit with the 2nd MSC Server coupling, and the transmission starting command is to the virtual soft switch unit of self-management the 2nd MSC Server business, and order it to take over the business of the 2nd MSC Server, the 4th MGW that is positioned at region 3 is registered on the 3rd MSC Server, carries out the mutual of business datum with corresponding virtual soft switch unit.When a MSC Server during at operation irregularity handoff procedure and when handoff procedure and the embodiment during link failure between a MSC Server and the part MGW identical, do not repeat them here.
As seen, because the virtual soft switch unit on the 2nd MSC Server is independent mutually, so the 2nd MSC Server in management local exchange business, can also distinguish management at the different conditions of a MSC Server and the 3rd MSC Server.For example, the business that the 2nd MSC Server can only take over the professional of a MSC Server or only take over the 3rd MSC Server, in addition, the 2nd MSCServer can also only take over the part business of a MSC Server, thereby has improved the flexibility of network control.
In the present embodiment, be respectively arranged with the professional different professional virtual soft switch unit of playing a game with management of management local exchange among the 2nd MSC Server, carrying out the dual-homing switchover front and back, the relation between the business of different Softswitch management remains unchanged.Switching services to the two MSCServer with a MSC Server are example, before switching, calling between the one MSC Server and the 2nd MSC Server is station to station call, behind switching services to the two MSC Server of a MSC Server, handle on the 2nd MSC Server, the calling of managing between the virtual soft switch unit of the virtual soft switch unit of a MSC Server business and management local exchange business is station to station call equally.
After main home soft exchange device is carried out dual-homing switchover, carrying out dual-homed with a MSC Server is example, the ticket of former cause the one MSC Server management will generate in the charging gateway of the 2nd MSC Server, so search CDR file on the respective directories of charging center on the charging gateway address of reading CDR file times to the two MSC Server.
Recover just often when main ownership MSC Server works, the business of main ownership MSC Server is switched by the virtual soft switch unit from ownership MSC Server and is got back on master's ownership MSC Server.With the 3rd MSC Server is example, recover just often in the 3rd MSC Server work, the 5th MGW that is positioned at region 4 re-registers on the 3rd MSC Server, and corresponding business is also upward switched back on the 3rd MSC Server the virtual soft switch unit of management the 3rd MSC Server by being positioned at the 2nd MSCServer.
In the present embodiment, dual-homing switchover also can be forced to finish by manually switching order.Manually the method that is provided with is identical with method embodiment illustrated in fig. 4, does not repeat them here.
What comprise the local exchange business in embodiment illustrated in fig. 5 is provided with N+1 virtual soft switch unit from home soft exchange device, when taking over N main home soft exchange device professional, realize that from home soft exchange device and main home soft exchange device dual-homed method is similar to present embodiment, do not repeat them here.
Be example with the 2nd MSC Server in embodiment illustrated in fig. 5 below, introduce the composition and the operation principle of Softswitch in detail.
Fig. 6 shows the internal structure of Softswitch in the embodiment of the invention, and as shown in Figure 6, the Softswitch in the present embodiment is made up of control unit, monitoring means and N+1 different virtual soft switch unit, and wherein N is the integer greater than 2.In the present embodiment, monitoring means is by the Link State between heartbeat link monitoring place Softswitch and other Softswitch, and the link-state information of returning between the Softswitch is given control unit.
Control unit, reception is manually switched order from the state information or the reception of other Softswitch of monitoring means, judge whether to carry out dual-homing switchover, if Softswitch is arranged need be switched, according to the relation of virtual soft switch unit in the virtual soft switch unit index with corresponding Softswitch, the Softswitch corresponding virtual soft switch unit that finds and need switch, and send starting command to this virtual soft switch unit, take over the business of the Softswitch that need switch by this virtual soft switch unit.Wherein, both comprise the relation between virtual soft switch unit and corresponding other Softswitch in the virtual soft switch unit index, also comprised the corresponding relation between the Softswitch at virtual Softswitch and its place.
In embodiments of the present invention, manually switching order can be the Softswitch setting by man-machine language by the user.
Virtual soft switch unit, the starting command of reception control unit is managed the local exchange business of Softswitch or the business of other Softswitch that need switch respectively.
In the present embodiment, comprise N+1 different virtual soft switch unit in this Softswitch, suppose that the local exchange business is responsible in the virtual soft switch of regulation unit 0 in virtual soft switch unit index, virtual soft switch unit 1 and virtual soft switch unit 2 are responsible for the business of a MSC Server and the 3rd MSCServer respectively, and the business of other Softswitch in the dual-home network is responsible in other virtual soft switch unit.That is to say that virtual soft switch unit 0 and the 2nd MSC Server subordinate's MGW carries out the mutual of business datum; When a MSC Server need switch, by the business of virtual soft switch unit 1 adapter the one MSC Server, when the 3rd MSC Server need switch, by the business of virtual soft switch unit 2 adapters the 3rd MSC Server.
Comprise monitoring means in the Softswitch of present embodiment, this is a preferable examples of the present invention, is not limited to the present invention.In Softswitch of the present invention, can not comprise monitoring means, perhaps the function of monitoring means is realized by control unit.
Relation between the virtual soft switch unit is exactly the relation between the pairing Softswitch in virtual soft switch unit.That is to say,, remain unchanged by the relation between the business of different Softswitch management carrying out the dual-homing switchover front and back.With Softswitch shown in Figure 6 is example, suppose shown in Figure 6 to be positioned at region 1 from home soft exchange device, virtual soft switch unit 0 a corresponding MSC Server in the Softswitch, virtual soft switch unit 1 corresponding the 2nd MSC Server, suppose that a MSC Server and the 2nd MSC Server lay respectively at region 2 and region 3, after switching, though virtual soft switch unit 0 and virtual soft switch unit 1 are all from home soft exchange device, but virtual soft switch unit 0 and the 1 handled calling of virtual soft switch unit remain the station to station call between region 2 and the region 3.
Because the virtual soft switch unit in Softswitch is provided with state machine, makes Softswitch can manage the state of different Softswitch respectively.When manually finishing dual-homing switchover, the state machine in the virtual soft switch unit of corresponding different Softswitch is controlled the state of virtual soft switch unit, self place according to the needs of manually switching.Being arranged so that separately when carrying out manual switchover of state machine, the state transition of the virtual soft switch unit of corresponding different Softswitch can not interact.Thereby realize the flexible management of one or more Softswitch and realized effectively manually dual-homing switchover.
In addition, the virtual soft switch unit of corresponding different Softswitch can be configured to the state machine of different Softswitch the relation of appointment by from the home soft exchange device unified management, makes the management of Softswitch more flexible.For example, in Softswitch shown in Figure 6, when the virtual soft switch unit 0 of management local exchange business is in running order, can Softswitch only be managed to the local exchange business with the state configuration of management virtual soft switch unit 1 of other Softswitch and virtual soft switch unit 2 for switching.
As seen, because each virtual soft switch unit all is provided with independently state machine, when carrying out dual-homed switching, be independent of each other, thereby the user can be managed with the business of playing a game local exchange is professional flexibly at different main Softswitch and the different business needs used.
In Softswitch shown in Figure 6, the local exchange business is in charge of in virtual soft switch unit 0.In actual applications, Softswitch can not have the local exchange business, as shown in Figure 4 among the embodiment from ownership MSC Server, can not comprise the virtual soft switch unit of management local exchange business this moment in the Softswitch.
In addition, have N+1 independently virtual soft switch unit in the Softswitch in the present embodiment, according to actual needs, the virtual soft switch unit in the Softswitch can be one or more.
In the above-described embodiments, with the Softswitch in the R4 group-network construction be example to explaining that the present invention carries out, this is a preferred embodiments of the present invention, is not limitation of the present invention.The present invention can also be used for other flexible exchanging network.As in next generation network (NGN), Media Gateway Controller (MGC) is as Softswitch, and soft switch double attaching system of the present invention and method and Softswitch stand good.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1, a kind ofly realizes dual-homed system, it is characterized in that, comprise media gateway and Softswitch in this system, store the business datum of corresponding other Softswitch in this virtual soft switch unit with virtual soft switch unit of other Softswitch in the corresponding double attaching system
Described Softswitch with virtual soft switch unit, other Softswitch is used for when need be switched, the business datum of storing in the dual-homed equipment corresponding virtual soft switch unit that utilizes described needs to switch, the Softswitch subordinate's who switches with described needs all or part of media gateway is carried out the mutual of business datum, takes over all or part of business of the Softswitch that described needs switch;
Described media gateway is used for carrying out the mutual of business datum with described Softswitch with virtual soft switch unit.
2, system according to claim 1, it is characterized in that, whether described Softswitch with virtual soft switch unit is used for other Softswitch of real-time judge needs to switch, switch if desired, then described all or part of media gateway with the Softswitch of virtual soft switch unit and Softswitch subordinate that described needs are switched is carried out the mutual of business datum.
3, system according to claim 2 is characterized in that, the Softswitch with virtual soft switch unit described in the system is undertaken alternately by heartbeat link and other Softswitch, and whether other Softswitch of real-time judge needs to switch.
According to claim 1,2 or 3 described systems, it is characterized in that 4, described other Softswitch is one or more.
According to claim 1,2 or 3 described systems, it is characterized in that 5, described other Softswitch is the Softswitch with virtual soft switch unit.
6, according to claim 1,2 or 3 described systems, it is characterized in that, further comprise the virtual soft switch unit of corresponding local exchange business in the described Softswitch with virtual soft switch unit, store the local exchange business datum in this virtual soft switch unit,
Described Softswitch with virtual soft switch unit utilizes the local exchange business datum of storing in the virtual soft switch unit, carries out the mutual of business datum with self subordinate's all or part of media gateway.
7, a kind ofly realize dual-homed method, it is characterized in that, be provided with Softswitch, the virtual soft switch unit that comprises other Softswitch in the corresponding double attaching system in this Softswitch, store the business datum of corresponding other Softswitch in this virtual soft switch unit, this method comprises:
When other Softswitch need be switched, the business datum of storing in the Softswitch corresponding virtual soft switch unit that utilization need be switched, all or part of business of the Softswitch that adapter need be switched.
8, method according to claim 7 is characterized in that, before taking over all or part of business of Softswitch that need switch, this method further comprises:
Whether other Softswitch of real-time judge needs to switch, and if desired, carries out the step of all or part of business of the Softswitch that described adapter need switch.
According to claim 7 or 8 described methods, it is characterized in that 9, described other Softswitch is one or more.
10, according to claim 7 or 8 described methods, it is characterized in that, further comprise the virtual soft switch unit of corresponding local exchange business in the described Softswitch with virtual soft switch unit, store the local exchange business datum in this virtual soft switch unit, this method further comprises:
Utilize the local exchange business datum of storing in the virtual soft switch unit, take over all or part of business of self.
11, according to claim 7 or 8 described methods, it is characterized in that this method further comprises:
Virtual soft switch unit index is set, records the corresponding relation between virtual soft switch unit and described other Softswitch in this virtual soft switch unit index,
The virtual soft switch unit of the virtual soft switch unit of described other Softswitch of correspondence for searching according to virtual soft switch unit index.
12, method according to claim 10 is characterized in that, this method further comprises:
Virtual soft switch unit index is set, records the corresponding relation between virtual soft switch unit and the described Softswitch in this virtual soft switch unit index,
The virtual soft switch unit of the virtual soft switch unit of described corresponding local exchange business for searching according to virtual soft switch unit index.
13, a kind of Softswitch is characterized in that, comprises control unit and at least one virtual soft switch unit, stores the business datum of corresponding other Softswitch in this virtual soft switch unit, wherein,
Control unit sends starting command to virtual soft switch unit;
Virtual soft switch unit, the starting command of reception control unit, all or part of business of taking over other corresponding Softswitch.
14, Softswitch according to claim 13 is characterized in that, further comprises monitoring means in this equipment,
Described monitoring means, the Link State between monitoring place Softswitch and other Softswitch, the link-state information of returning between the Softswitch is given control unit;
Described control unit receives the link-state information that monitoring means sends, and judges whether other Softswitch needs to switch, and if desired, sends starting command to the Softswitch corresponding virtual soft switch unit of switching with needs.
15, Softswitch according to claim 13 is characterized in that, described virtual soft switch comprises the state machine of controlling virtual soft switch location mode in the unit, is used for manually switching order to the control unit transmission;
Described control unit receives and manually to switch order, judges whether other Softswitch needs to switch, and if desired, sends starting command to the Softswitch corresponding virtual soft switch unit of switching with needs.
16, according to claim 13,14 or 15 described Softswitch, it is characterized in that, further comprise the virtual soft switch unit that stores the local exchange business datum in the described Softswitch,
This virtual soft switch unit receives the starting command of control unit, utilizes the local exchange business datum that self stores, and carries out the mutual of business datum with place Softswitch subordinate's all or part of media gateway.
17, according to claim 13,14 or 15 Softswitch, it is characterized in that, comprise virtual soft switch unit index in the described control unit, be provided with the corresponding relation between virtual soft switch unit and other Softswitch in this virtual soft switch unit index
Described control unit sends the virtual soft switch unit of starting command to corresponding other Softswitch according to the virtual soft switch unit of definite corresponding other Softswitch of virtual soft switch unit index.
18, Softswitch according to claim 16 is characterized in that, comprises virtual soft switch unit index in the described control unit, is provided with the corresponding relation between virtual soft switch unit and the described Softswitch in this virtual soft switch unit index,
Described control unit is determined the virtual soft switch unit of corresponding described Softswitch according to virtual soft switch unit index, sends the virtual soft switch unit of starting command to the described Softswitch of correspondence.
19, according to claim 13,14 or 15 described Softswitch, it is characterized in that the relation in described virtual soft switch unit and the Softswitch between other virtual soft switch unit is the relation between the pairing Softswitch in virtual soft switch unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610167245 CN1996826A (en) | 2006-12-12 | 2006-12-12 | Method, system and soft switch device for dual-homing |
| PCT/CN2007/071067 WO2008064601A1 (en) | 2006-11-30 | 2007-11-15 | Method of realizing dual homing, system and softswitch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610167245 CN1996826A (en) | 2006-12-12 | 2006-12-12 | Method, system and soft switch device for dual-homing |
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| CN1996826A true CN1996826A (en) | 2007-07-11 |
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| CN 200610167245 Pending CN1996826A (en) | 2006-11-30 | 2006-12-12 | Method, system and soft switch device for dual-homing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008064601A1 (en) * | 2006-11-30 | 2008-06-05 | Huawei Technologies Co., Ltd. | Method of realizing dual homing, system and softswitch equipment |
| CN101202667B (en) * | 2007-12-10 | 2010-04-21 | 中兴通讯股份有限公司 | Method for sharing disaster tolerance resource |
| CN102208997A (en) * | 2011-06-03 | 2011-10-05 | 中兴通讯股份有限公司 | Method and system for managing interregional service platform |
| CN101641902B (en) * | 2007-11-26 | 2013-09-25 | 阿尔卡特朗讯公司 | Method for enhancing handoff between media gateways and media gateway controllers |
| CN103888277A (en) * | 2012-12-19 | 2014-06-25 | 中国移动通信集团公司 | Gateway disaster recovery backup method, apparatus and system |
-
2006
- 2006-12-12 CN CN 200610167245 patent/CN1996826A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008064601A1 (en) * | 2006-11-30 | 2008-06-05 | Huawei Technologies Co., Ltd. | Method of realizing dual homing, system and softswitch equipment |
| CN101641902B (en) * | 2007-11-26 | 2013-09-25 | 阿尔卡特朗讯公司 | Method for enhancing handoff between media gateways and media gateway controllers |
| CN101202667B (en) * | 2007-12-10 | 2010-04-21 | 中兴通讯股份有限公司 | Method for sharing disaster tolerance resource |
| CN102208997A (en) * | 2011-06-03 | 2011-10-05 | 中兴通讯股份有限公司 | Method and system for managing interregional service platform |
| CN103888277A (en) * | 2012-12-19 | 2014-06-25 | 中国移动通信集团公司 | Gateway disaster recovery backup method, apparatus and system |
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