CN1741476A - Method for processing connection fault between signalling gateway and media gateway controller - Google Patents
Method for processing connection fault between signalling gateway and media gateway controller Download PDFInfo
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Abstract
A method for processing connection fault between signaling gateway and media gateway controller includes deactivating NO.7 signaling link between signaling gateway and exchanger or setting it to be processor fault to make exchanger no longer send calling message to MGC when exchanger receives information ; activating NO .7 signaling link between signaling gateway and exchanger by SG or removing off mark information of processor fault to restore on service when fault is removed and connection is recovered .
Description
Technical field
The present invention relates to the processing method that is connected fault between a kind of SGW and the Media Gateway Controller, belong to the maintenance management technical field of flexible exchanging network.
Background technology
In the development evolution process of NGN system (NGN, Next Generation Network) that with the soft switch is core, must take into full account the intercommunication and the fusion of these two communication networks at existing NO.7 signaling communication network network.Because NO.7 signaling message transmission part (MTP) third level customer adaptation layer protocol (M3UA) has powerful routing function (for example according to destination signaling point DPC, Original Signaling Point OPC, service indicator SI, cic circuit identification code CIC etc.), fairly perfect signaling network management function, and the networking capability of similar Signaling Transfer Point, therefore, when solving media gateway controller MGC and No.7 signalling interworking problem, Message Transfer Part third level user adaptation layer M3UA is the main communication protocol that signaling transmits gateway application in the SIGTRAN stack.
In the NO.7 signaling communication network, SGW (SG) is the functional entity that is connected across between No.7 nation-wide Network and the flexible exchanging network Media Gateway Controller (MGC), be responsible for to signalling system No.7 message SS7 transfer, translation or finalization process, link to each other with media gateway controller MGC by signaling transportation protocol SIGTRAN and to transmit signaling; Simultaneously be used for also representing that a group node in IP network territory is routed to the NO.7 signaling network.When SG adopts M3UA, two kinds of working methods are arranged: Signalling Transfer Point and agent way.
The transit point mode: adopt different signaling point codes to represent application server and SG respectively, in this case, SG is similar to the STP in the NO.7 signaling network, plays the function of pass-through signaling.
Agent way: adopt identical signaling point code to represent application server and SG, perhaps use same signaling point code to represent each application server.If necessary, also can represent SG and all application servers with some signaling point codes.
Now, when using agent way work, if the connection between SG and the MGC is all broken down, when the signaling that causes SG to send can not arrive at signaling point management cluster SPMC, receive the operation behind the signaling message that mails to this MGC for SG, industry standard is not stipulated concrete processing policy, so there are different understanding and corresponding implementation method in each device fabrication producer.Usually the method that adopts is that SG does not send any message to switch, perhaps only to the unavailable UPU message of switch loopback User Part (referring to Fig. 1, MG is a media gateway among the figure).But because the UPU function does not also have interior being extensive use of of network-wide basis of No.7 signaling network at home, some switch can not be discerned this message.In addition, when business recovery, each switch also must be tested the state of this MGC, and the concrete operations of this processing procedure do not have clear and definite standard or regulation equally, also is a uncertain factor.
Therefore, when existing factorage mode generation soft switch fault, there are following two problems:
(1) if SG not to any message of switch loopback, switch breaks down with regard to the MGC on the there is no telling IP network, the signaling message of this MGC of calling that constantly takes place will impact to signaling network thereupon; Simultaneously, because any message of not loopback of SG, the calling that exchanger user mails to this MGC must could discharge after overtime by the time (about 20 seconds), has a strong impact on service quality.
(2) if SG to switch loopback UPU message, still, this UPU function does not have to be extensive use of in the network-wide basis of No.7 signaling network at home, causes some switch can not discern this message.And the associative operation after MGC fixes a breakdown, recovers does not normally have at present clear and definite standard or informing mechanism yet.
Therefore, how in actual applications, handle the problems referred to above that occur being connected fault under the factorage mode between the SGW and Media Gateway Controller preferably, just become the new problem that those skilled in the art must consider as early as possible and solve.
Summary of the invention
In view of this, the purpose of this invention is to provide the processing method that is connected fault between a kind of SGW and the Media Gateway Controller, so that can existing network not done under the big change prerequisite, overcome current mechanism when the MGC fault, can't be to the defective of No.7 signaling network broadcasting and infecctive call message adverse effect to the No.7 signaling network, simultaneously, the standard operations, to improve service quality, optimize Operation Network.
In order to achieve the above object, the invention provides the processing method that is connected fault between a kind of SGW and the Media Gateway Controller, it is characterized in that: break down when SGW SG judges the connection between itself and the media gateway controller MGC, when the signaling that causes SG to send can not arrive at signaling point management cluster SPMC, with the No.7 signaling link between deactivation itself and the switch, after making that switch is received this message, no longer send message related to calls toward this MGC; When the fault between SG and the MGC is got rid of, is connected when recovering, SG rebulids the No.7 signaling link between itself and the switch, promptly activates the No.7 signaling link between itself and the switch, recovers business.
Described deactivation No.7 signaling link is to make the No.7 signaling link state of deactivating, and described activation No.7 signaling link is to make the No.7 signaling link enter operating state.
This method comprises following operating procedure:
(1) whether SG normal according to the state of equipment of itself network hardware interface, and perhaps whether the heartbeat message between itself and the MGC normal, judge its with MGC between be connected and have fault;
(2) SG deactivates the signaling link between the switch of itself and No.7 signaling network;
(3) because of MGC has become the state that can not arrive at for the switch of No.7 signaling network, so switch no longer sends call information to this MGC;
(4) after fault was eliminated, SG recovered normal according to the heartbeat message between itself and the MGC, judge its with MGC between be connected and also recover normal;
(5) SG activates the signaling link between itself and the No.7 network switch;
(6) because of MGC reverts to reachable state for the No.7 network switch, so switch recovers to send call information to this MGC.
In order to achieve the above object, the present invention also provides the processing method that is connected fault between a kind of SGW and the Media Gateway Controller, it is characterized in that: break down when SGW SG judges the connection between itself and the media gateway controller MGC, when the signaling that causes SG to send can not arrive at signaling point management cluster SPMC, the switch of SG in the No.7 signaling network sends " processor stall " message SIPO (StatusIndication " PO " (processor outage)), after switch is received this message, no longer send message related to calls toward this MGC; When the fault that is connected between SG and the MGC is got rid of, connects when recovering, SG sends " signaling link test " message SLTM (Signalling Link Test Message) to all links of switch, to remove " processor stall " sign of the No.7 signaling link between itself and the switch, recover service message.
This method comprises following operating procedure:
(1) whether SG normal according to the state of equipment of itself network hardware interface, and perhaps whether the heartbeat message between itself and the MGC normal, judge its with MGC between be connected fault;
(2) SG sends the Message Transfer Part MTP second level " processor stall " message SIPO to the No.7 network switch;
(3) because the switch of No.7 signaling network thinks that the processor stall of MGC makes both become the state that can not lead to, so switch no longer sends call information to this MGC;
(4) after fault was eliminated, SG recovered normal according to the heartbeat message between itself and the MGC, judge its with MGC between be connected and also recover normal;
(5) SG sends Signaling Link Test Message SLTM to the No.7 network switch, and after test was passed through smoothly, " processor stall " sign of described link was removed automatically;
(6) because of MGC reverts to reachable state for the No.7 network switch, so switch recovers to send call information to this MGC.
The present invention be a kind of SGW with Media Gateway Controller between the processing method that is connected fault, existing communication industry standard breaks down at MGC, when the signaling that causes SG to send can not arrive at signaling point management cluster SPMC, can not broadcast the information of this connection fault to the No.7 signaling network, make the switch in the No.7 signaling network can't obtain notice, connecting under the failure condition thereby cause, message related to calls still attempts to mail to this MGC, and a large amount of invalid messages related to calls produce harmful effect to the existing communication network probably; And the calling that exchanger user mails to this MGC also must overtime by the time (after about 20 seconds) could discharge, and has a strong impact on telecommunication service quality.Method of the present invention has solved the problems referred to above effectively: switch can know in time whether MGC is in the state that can arrive at, and sends corresponding prompt to the user immediately, reduces infecctive call message.Compare with existing industry standard, this method advantage is outstanding: promote service quality, optimize communication network.Another characteristics are: do not need the existing ripe network equipment is carried out big change, especially be fit to applying of large-scale communication network.The unique weak point of the present invention is when fault recovery, owing to need recover the No.7 link again, needs to increase a small amount of time delay (second level).But if adopt the method for " processor stall " message SIPO, its operation delay is less, and therefore this method is preferentially adopted in suggestion.
Description of drawings
Fig. 1 is at present to the method schematic diagram that fault is handled that is connected between SGW and the Media Gateway Controller.
Fig. 2 is the present invention to the first kind of processing method-deactivation link-schematic diagram that is connected fault between SGW SG and the media gateway controller MGC.
Fig. 3 is the present invention to the second kind of processing method that the is connected fault-transmission SIPO signal-schematic diagram between SGW SG and the media gateway controller MGC.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
The present invention be a kind of SGW with Media Gateway Controller between the processing method that is connected fault, it is the technical scheme that proposes at the problem that exists in the current mechanism under the factorage mode noted earlier: suggestion SGW SG equipment can select to be configured to one of following two kinds of processing modes:
When SG judges connection fault between itself and the MGC, when the signaling that causes SG to send can not arrive at signaling point management cluster SPMC, with the deactivation of the No.7 signaling link between itself and the switch or be changed to processor stall, so that after switch receives this information, will no longer send message related to calls toward this MGC.; When fault is got rid of, connected when recovering, SG will activate No.7 signaling link or removing " processor stall " information between itself and the switch, recover business.
Referring to Fig. 2, introduce the concrete treatment step of first kind of processing method of the present invention:
(1) whether SG normal according to the state of equipment of itself network hardware interface, and perhaps whether the heartbeat message between itself and the MGC normal, judge its with MGC between be connected and have fault;
(2) SG deactivates the signaling link between the switch of itself and No.7 signaling network;
(3) because of MGC has become the state that can not arrive at for the switch of No.7 signaling network, so switch no longer sends call information to this MGC;
(4) after fault was eliminated, SG recovered normal according to the heartbeat message between itself and the MGC, judge its with MGC between be connected and also recover normal;
(5) SG activates the signaling link between itself and the No.7 network switch;
(6) because of MGC reverts to reachable state for the No.7 network switch, so switch recovers to send call information to this MGC.
Referring to Fig. 3, introduce the concrete treatment step of second kind of processing method of the present invention:
(1) whether SG normal according to the state of equipment of itself network hardware interface, and perhaps whether the heartbeat message between itself and the MGC normal, judge its with MGC between be connected fault; Be illustrated as the situation that signaling point management cluster SPMC comprises the MGC of one or more shared signaling point code a: when last MGC fault, signaling point management cluster SPMC becomes unreachable for switch;
(2) SG sends the Message Transfer Part MTP second level " processor stall " message SIPO to the No.7 network switch;
(3) because thinking, the switch of No.7 signaling network the processor stall of MGC makes both become the state that to lead to, so switch no longer sends call information to this MGC;
(4) after fault was eliminated, SG recovered normal according to the heartbeat message between itself and the MGC, judge its with MGC between be connected and also recover normal;
(5) SG sends Signaling Link Test Message SLTM to the No.7 network switch, and after test was passed through smoothly, " processor stall " sign of link was removed automatically;
(6) because of MGC reverts to reachable state for the No.7 network switch, so switch recovers to send call information to this MGC.
Therefore, SGW SG equipment can select to dispose one of above-mentioned two kinds of processing modes.The method of second kind of employing " processor stall " message SIPO wherein, because of its time-delay that operation brought to the No.7 signaling link littler, the preferential employing of suggestion.
The applicant has carried out implementing test to two kinds of methods of the present invention, and test is successful, has realized goal of the invention.
Claims (5)
1, the processing method that is connected fault between a kind of SGW and the Media Gateway Controller, it is characterized in that: break down when SGW SG judges the connection between itself and the media gateway controller MGC, when the signaling that causes SG to send can not arrive at signaling point management cluster SPMC, with the No.7 signaling link between deactivation itself and the switch, after making that switch is received this message, no longer send message related to calls toward this MGC; When the fault between SG and the MGC is got rid of, is connected when recovering, SG rebulids the No.7 signaling link between itself and the switch, promptly activates the No.7 signaling link between itself and the switch, recovers business.
2, the processing method of connection fault according to claim 1 is characterized in that: described deactivation No.7 signaling link is to make the No.7 signaling link state of deactivating, and described activation No.7 signaling link is to make the No.7 signaling link enter operating state.
3, the processing method of connection fault according to claim 1 is characterized in that: this method comprises following operating procedure:
(1) whether SG normal according to the state of equipment of itself network hardware interface, and perhaps whether the heartbeat message between itself and the MGC normal, judge its with MGC between be connected and have fault;
(2) SG deactivates the signaling link between the switch of itself and No.7 signaling network;
(3) because of MGC has become the state that can not arrive at for the switch of No.7 signaling network, so switch no longer sends call information to this MGC;
(4) after fault was eliminated, SG recovered normal according to the heartbeat message between itself and the MGC, judge its with MGC between be connected and also recover normal;
(5) SG activates the signaling link between itself and the No.7 network switch;
(6) because of MGC reverts to reachable state for the No.7 network switch, so switch recovers to send call information to this MGC.
4, the processing method that is connected fault between a kind of SGW and the Media Gateway Controller, it is characterized in that: break down when SGW SG judges the connection between itself and the media gateway controller MGC, when the signaling that causes SG to send can not arrive at signaling point management cluster SPMC, the switch of SG in the No.7 signaling network sends " processor stall " message SIPO, after switch is received this message, no longer send message related to calls toward this MGC; When the fault that is connected between SG and the MGC is got rid of, connects when recovering, SG sends " signaling link test " message SLTM to all links of switch, to remove " processor stall " sign of the No.7 signaling link between this SG and the switch, recover service message.
5, the processing method of connection fault according to claim 4 is characterized in that: this method comprises following operating procedure:
(1) whether SG normal according to the state of equipment of itself network hardware interface, and perhaps whether the heartbeat message between itself and the MGC normal, judge its with MGC between be connected fault;
(2) SG sends the Message Transfer Part MTP second level " processor stall " message SIPO to the No.7 network switch;
(3) because the switch of No.7 signaling network thinks that the processor stall of MGC makes both become the state that can not lead to, so switch no longer sends call information to this MGC;
(4) after fault was eliminated, SG recovered normal according to the heartbeat message between itself and the MGC, judge its with MGC between be connected and also recover normal;
(5) SG sends Signaling Link Test Message SLTM to the No.7 network switch, and after test was passed through smoothly, " processor stall " sign of described link was removed automatically;
(6) because of MGC reverts to reachable state for the No.7 network switch, so switch recovers to send call information to this MGC.
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| CN 200510103389 CN1741476A (en) | 2005-09-20 | 2005-09-20 | Method for processing connection fault between signalling gateway and media gateway controller |
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Cited By (7)
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| WO2009155748A1 (en) * | 2008-06-26 | 2009-12-30 | 中兴通讯股份有限公司 | A signaling gateway and its signaling processing method |
| CN101257642B (en) * | 2007-02-28 | 2010-10-13 | 中兴通讯股份有限公司 | Method for controlling signaling message flow quantity |
| WO2011015048A1 (en) * | 2009-08-06 | 2011-02-10 | 华为技术有限公司 | Release processing method for connection resources and apparatus thereof |
| CN101043477B (en) * | 2007-03-26 | 2011-07-27 | 华为技术有限公司 | Signaling process method of signaling gateway, system and signaling gateway |
| CN101754354B (en) * | 2008-12-01 | 2012-08-15 | 中国移动通信集团公司 | Heartbeat control device as well as roaming addressing system and method |
| CN102724072A (en) * | 2012-06-20 | 2012-10-10 | 华为技术有限公司 | Method, unit and system for disaster recovery switching |
| WO2013091248A1 (en) * | 2011-12-23 | 2013-06-27 | 华为技术有限公司 | Method, device and system for service implementation during failure of media gateway controller |
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2005
- 2005-09-20 CN CN 200510103389 patent/CN1741476A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101257642B (en) * | 2007-02-28 | 2010-10-13 | 中兴通讯股份有限公司 | Method for controlling signaling message flow quantity |
| CN101043477B (en) * | 2007-03-26 | 2011-07-27 | 华为技术有限公司 | Signaling process method of signaling gateway, system and signaling gateway |
| WO2009155748A1 (en) * | 2008-06-26 | 2009-12-30 | 中兴通讯股份有限公司 | A signaling gateway and its signaling processing method |
| CN102067536B (en) * | 2008-06-26 | 2012-08-08 | 中兴通讯股份有限公司 | A signaling gateway and its signaling processing method |
| US8762557B2 (en) | 2008-06-26 | 2014-06-24 | Zte Corporation | Signaling gateway and its signaling processing method |
| CN101754354B (en) * | 2008-12-01 | 2012-08-15 | 中国移动通信集团公司 | Heartbeat control device as well as roaming addressing system and method |
| WO2011015048A1 (en) * | 2009-08-06 | 2011-02-10 | 华为技术有限公司 | Release processing method for connection resources and apparatus thereof |
| US8737970B2 (en) | 2009-08-06 | 2014-05-27 | Huawei Technologies Co., Ltd. | Method and apparatus for processing release of connection resources |
| WO2013091248A1 (en) * | 2011-12-23 | 2013-06-27 | 华为技术有限公司 | Method, device and system for service implementation during failure of media gateway controller |
| CN102724072A (en) * | 2012-06-20 | 2012-10-10 | 华为技术有限公司 | Method, unit and system for disaster recovery switching |
| WO2013189185A1 (en) * | 2012-06-20 | 2013-12-27 | 华为技术有限公司 | Disaster recovery switching method, device and system |
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