CN101064633A - Method for switching automatically signaling routing in dual homing - Google Patents
Method for switching automatically signaling routing in dual homing Download PDFInfo
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- CN101064633A CN101064633A CN 200610076447 CN200610076447A CN101064633A CN 101064633 A CN101064633 A CN 101064633A CN 200610076447 CN200610076447 CN 200610076447 CN 200610076447 A CN200610076447 A CN 200610076447A CN 101064633 A CN101064633 A CN 101064633A
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- sctp
- standby
- media gateway
- activation
- soft switch
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Abstract
The invention discloses a method of automatic switching command route in double adscription, it aiming at resolving problem that when medium gateway is double adscription switched, the command route can not be switched automatically. The method 1 in the invention is following: when the chain of medium gateway and main soft permutation is overtime, the medium gateway is registered to standby soft permutation; M3UA is communicated with standby flow control transmission protocol to make it in activation state; if the main flow control transmission protocol is in activation state, it is set to inactivation state. The method 2 in the invention is following: the main soft permutation detects that the medium gateway quit service; M3UA is communicated with main flow control transmission protocol to make it in activation state; when the chain of medium gateway and main soft permutation is overtime, the medium gateway is registered to standby soft permutation; M3UA is communicated with standby flow control transmission protocol to make it in activation state. Adopting said method, the command route can be switched automatically.
Description
Technical field
The present invention relates to the communications field, the method that particularly dual-homed middle signalling route automaticallyes switch.
Background technology
In jumbo flexible exchanging network, in order to improve stability of network, all need realize the long-distance disaster function, the dual-homed function of media gateway realization in soft switch.Like this, break down in some soft switch, the perhaps communication failure between media gateway and the soft switch, media gateway can be registered on the another one Softswitch.Because in the network of soft switch, medium separate with signaling, therefore, and after media gateway switches to the disaster tolerance soft switch, the signalling route that needs simultaneously to be correlated with also can switch to the disaster tolerance soft switch, and the medium function that continues just might be provided after media gateway is switched like this.
Summary of the invention
In order to overcome above-mentioned defective, the object of the present invention is to provide a kind of when dual-homed switchings takes place media gateway, realize that signalling route automaticallyes switch dual-homed in the method for signalling route automatic switchover.
In order to achieve the above object, the method that signalling route automaticallyed switch during the present invention was dual-homed may further comprise the steps:
(1) after media gateway and main link with soft switch were overtime, media gateway was registered in the standby soft switch automatically by the media gateway management agreement with dual-homed function;
(2) after standby soft switch detected the media gateway registration success, third level customer adaptation layer protocol and standby SCTP communicated, and make described standby SCTP be in state of activation;
(3) judge whether the master is in state of activation with SCTP; If, then described master being changed to deactivated state with SCTP, step finishes; Otherwise step finishes.
Wherein, main is main with the connection protocol of soft switch to SGW with SCTP; Standby SCTP is the connection protocol of standby soft switch to SGW.
As a further improvement on the present invention, described step (2) is specially:
(A) after standby soft switch detected the media gateway registration success, third level customer adaptation layer protocol sent the activation message of application server on standby SCTP;
(B) after receiving the activation message of described standby SCTP on the SGW, return the activation acknowledgement message, make described standby SCTP be in state of activation.
As a further improvement on the present invention, described step (3) is specially:
(a) judge whether the master is in state of activation with SCTP, if then enter step (b); Otherwise step finishes;
(b) SGW sends an instruction message to main with SCTP, and indication has had the standby stream control transmission protocol activating of replacement;
(c) after SGW is received instruction message, described master is changed to deactivated state with SCTP, and acquiescence is main obstructed to the route of SGW with soft switch, step finishes.
As a further improvement on the present invention, described media gateway management agreement is agreement H.248.
The method that a kind of dual-homed middle signalling route automaticallyes switch comprises the steps:
(1) after the master withdrawed from service with soft switch detection media gateway, third level customer adaptation layer protocol communicated with SCTP with main, makes described master be in deactivated state with SCTP;
(2) after media gateway and main link with soft switch were overtime, media gateway was registered in the standby soft switch automatically by the media gateway management agreement with dual-homed function;
(3) after standby soft switch detected the media gateway registration success, third level customer adaptation layer protocol and standby SCTP communicated, and make described standby SCTP be in state of activation, and step finishes.
Wherein, main is main with the connection protocol of soft switch to SGW with SCTP; Standby SCTP is the connection protocol of standby soft switch to SGW.
As a further improvement on the present invention, described step () is specially:
(I) after the master withdrawed from service with soft switch detection media gateway, third level customer adaptation layer protocol sent the deactivation message of application server on leading with SCTP;
(II) receiving on the SGW that described master with after the deactivation message of SCTP, returns the deactivation acknowledgement message, make described master be in deactivated state with SCTP.
As a further improvement on the present invention, described step (three) is specially:
(i) after standby soft switch detected the media gateway registration success, third level customer adaptation layer protocol sent the activation message of application server on standby SCTP;
(ii) after receiving the activation message of described standby SCTP on the SGW, return the activation acknowledgement message, make described standby SCTP be in state of activation, step finishes.
As a further improvement on the present invention, it is characterized in that described media gateway management agreement is agreement H.248.
After adopting two kinds of above-mentioned methods, after main link detecting with soft switch and media gateway is overtime, when media gateway is registered in the standby soft switch by the media gateway management agreement with dual-homed function automatically, trigger the active information of the application server among the M3UA (Message Transfer Part third level customer adaptation layer protocol) with the state variation of media gateway, make standby SCTP be in state of activation, can finish the automatic switchover of signalling route.
Description of drawings
Fig. 1 is the network topological diagram of soft switch long-distance disaster;
Fig. 2 is the M3UA message flow chart of handoff procedure under the method active/standby mode of the dual-homed middle signalling route automatic switchover of the present invention;
Fig. 3 is the M3UA message flow chart of handoff procedure under the method load sharing mode of the dual-homed middle signalling route automatic switchover of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1 and Figure 2, for convenience, the core control equipment of soft switch is called SS, SGW is called SG, and media gateway is called TG, and central processing office is called Co.SS1, SS2 are that the master of disaster tolerance each other uses, standby soft switch.The main soft switch SS1 that uses is connected called after ASP1 to the SCTP (SCTP) of SGW SG1, with SCTP (SCTP) the connection called after ASP2 of standby soft switch SS2 disaster tolerance plate to SGW SG1, claim that ASP1 is that main to use SCTP, ASP2 be standby SCTP.Application server AS _ TG1 by the media gateway State Control on SGW SG1 uses SCTP ASP1 by the master, standby SCTP ASP2 provides service, and the service processing mode of the application server AS _ TG1 relevant with the media gateway state is active and standby usefulness or load sharing.Under the normal condition, media gateway TGI is registered in the master and uses soft switch SS1, and under the disaster tolerance situation, media gateway TG1 is registered to standby soft switch SS2.
As shown in Figure 2, be application server AS under active/standby mode, the handoff procedure of signalling route.Specify as follows:
The first step: media gateway TG1 with main link detecting with soft switch SS1 overtime after, can be registered on the standby soft switch SS2 the dual-homed function of agreement H.248 that Here it is automatically;
Second step: after standby soft switch SS2 detected media gateway TG1 and succeeds in registration, the M3UA module can send the application server AS _ TG1 relevant with the media gateway state and activate message on standby SCTP ASP2;
The 3rd step: receive the activation message of standby SCTP ASP2 on SGW SG1, can return the activation acknowledgement message, standby like this SCTP ASP2 just is in state of activation;
The 4th step: simultaneously, if previous master is in state of activation with SCTP ASP1, SGW SG1 can have the SCTP of replacement to activate with NTFY message indication of SCTP ASP1 transmission to main.The master can be changed to deactivated state with SCTP ASP1 state with main, and think that the route of SGW SG1 is obstructed after receiving this notice with soft switch SS1.Disaster tolerance switching to this media gateway TG1 finishes, and message flow at this time is that standby soft switch SS2 sends to SGW SG1 by standby SCTP ASP2, and SGW SG1 is distributed to the PSTN network again.
As shown in Figure 3, be application server AS under the load sharing mode, the handoff procedure of signalling route.Specify as follows:
The first step: when main detect media gateway TG3 with soft switch SS3 and withdraw from service after, the M3UA module can main with SCTP on the transmission application server AS _ TG3 deactivation message relevant with the media gateway state;
Second step: on SGW SG3, receive main deactivation message with SCTP, the acknowledgement message of living that can go back, the master just is in deactivated state with SCTP like this;
The 3rd step: media gateway TG3 with main link detecting with soft switch SS3 overtime after, can be registered to standby soft switch SS4 automatically, the dual-homed function of agreement H.248 that Here it is;
The 4th step: after standby soft switch SS4 detected media gateway TG3 and succeeds in registration, the M3UA module can send activation message on standby SCTP;
The 5th step: receive the activation message of standby SCTP on SGW SG3, can return the activation acknowledgement message, SCTP just is in state of activation like this.Disaster tolerance switching to this media gateway TG3 finishes, and message flow at this time is that standby soft switch SS4 sends to SGW SG3 by standby SCTP, and SGW SG3 is distributed to the PSTN network again.
Therefore, after main link detecting with soft switch and media gateway is overtime, when media gateway is registered in the standby soft switch by the media gateway management agreement with dual-homed function automatically, trigger the active information of the application server among the M3UA (Message Transfer Part third level customer adaptation layer protocol) with the state variation of media gateway, make standby SCTP be in state of activation, can finish the automatic switchover of signalling route.
Claims (8)
1, a kind of method of dual-homed middle signalling route automatic switchover is characterized in that, comprises the steps:
(1) after media gateway and main link with soft switch were overtime, media gateway was registered in the standby soft switch automatically by the media gateway management agreement with dual-homed function;
(2) after standby soft switch detected the media gateway registration success, third level customer adaptation layer protocol and standby SCTP communicated, and make described standby SCTP be in state of activation;
(3) judge whether the master is in state of activation with SCTP; If, then described master being changed to deactivated state with SCTP, step finishes; Otherwise step finishes.
2. according to the method for the described dual-homed middle signalling route automatic switchover of claim 1, it is characterized in that described step (2) is specially:
(A) after standby soft switch detected the media gateway registration success, third level customer adaptation layer protocol sent the activation message of application server on standby SCTP;
(B) after receiving the activation message of described standby SCTP on the SGW, return the activation acknowledgement message, make described standby SCTP be in state of activation.
3, the method that automaticallyes switch according to the described dual-homed middle signalling route of claim 1 is characterized in that described step (3) is specially:
(a) judge whether the master is in state of activation with SCTP, if then enter step (b); Otherwise step finishes;
(b) SGW sends an instruction message to main with SCTP, and indication has had the standby stream control transmission protocol activating of replacement;
(c) after SGW is received instruction message, described master is changed to deactivated state with SCTP, and acquiescence is main obstructed to the route of SGW with soft switch, step finishes.
4, according to any method that described signalling route in dual-homed automaticallyes switch in the claim 1 to 3, it is characterized in that: described media gateway management agreement is agreement H.248.
5, a kind of method of dual-homed middle signalling route automatic switchover is characterized in that, comprises the steps:
(1) after the master withdrawed from service with soft switch detection media gateway, third level customer adaptation layer protocol communicated with SCTP with main, makes described master be in deactivated state with SCTP;
(2) after media gateway and main link with soft switch were overtime, media gateway was registered in the standby soft switch automatically by the media gateway management agreement with dual-homed function;
(3) after standby soft switch detected the media gateway registration success, third level customer adaptation layer protocol and standby SCTP communicated, and make described standby SCTP be in state of activation, and step finishes.
6, the method that automaticallyes switch according to the described dual-homed middle signalling route of claim 5 is characterized in that described step (one) be specially:
(I) after the master withdrawed from service with soft switch detection media gateway, third level customer adaptation layer protocol sent the deactivation message of application server on leading with SCTP;
(II) receiving on the SGW that described master with after the deactivation message of SCTP, returns the deactivation acknowledgement message, make described master be in deactivated state with SCTP.
7, the method that automaticallyes switch according to the described dual-homed middle signalling route of claim 5 is characterized in that described step (three) be specially:
(i) after standby soft switch detected the media gateway registration success, third level customer adaptation layer protocol sent the activation message of application server on standby SCTP;
(ii) after receiving the activation message of described standby SCTP on the SGW, return the activation acknowledgement message, make described standby SCTP be in state of activation, step finishes.
8, according in the claim 5 to 7 any one described dual-homed in the method that automaticallyes switch of signalling route, it is characterized in that described media gateway management agreement is agreement H.248.
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| CN 200610076447 CN101064633A (en) | 2006-04-25 | 2006-04-25 | Method for switching automatically signaling routing in dual homing |
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| CN 200610076447 CN101064633A (en) | 2006-04-25 | 2006-04-25 | Method for switching automatically signaling routing in dual homing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101426060B (en) * | 2008-12-01 | 2011-05-11 | 华为技术有限公司 | Method, soft switching device and system for double home soft switch |
| CN103023772A (en) * | 2012-09-14 | 2013-04-03 | 中兴国通通讯装备技术（北京）有限公司 | Soft terminal supporting multiple Flex channels and self-adapting dynamic access method thereof |
| CN101772190B (en) * | 2009-01-04 | 2016-01-20 | 上海贝尔股份有限公司 | The method and apparatus that SGW initiatively connects with application server process |
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2006
- 2006-04-25 CN CN 200610076447 patent/CN101064633A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101426060B (en) * | 2008-12-01 | 2011-05-11 | 华为技术有限公司 | Method, soft switching device and system for double home soft switch |
| CN101772190B (en) * | 2009-01-04 | 2016-01-20 | 上海贝尔股份有限公司 | The method and apparatus that SGW initiatively connects with application server process |
| CN103023772A (en) * | 2012-09-14 | 2013-04-03 | 中兴国通通讯装备技术（北京）有限公司 | Soft terminal supporting multiple Flex channels and self-adapting dynamic access method thereof |
| CN103023772B (en) * | 2012-09-14 | 2015-12-09 | 中兴国通通讯装备技术（北京）有限公司 | Support software terminal and the self adaptation dynamic access method thereof of many Flex passage |
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Application publication date: 20071031 |