CN1917432A - Media gateway controller / media gateway, and method for synchronizing connection status after disconnection - Google Patents
Media gateway controller / media gateway, and method for synchronizing connection status after disconnection Download PDFInfo
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- CN1917432A CN1917432A CN200510028833.XA CN200510028833A CN1917432A CN 1917432 A CN1917432 A CN 1917432A CN 200510028833 A CN200510028833 A CN 200510028833A CN 1917432 A CN1917432 A CN 1917432A
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Abstract
After the MG (media gateway) is turned off, the method comprises: after receiving the message of turning off MG, the MGC (media gateway controller) firstly detects the heartbeat state between itself and the MG; if the heartbeat failures, all connections are cut off by MG; if the heartbeat is succeeded, then making auditing for the real state of the terminal node, which is still in connection state, on MG; according to the state information of the terminal node carried by MG auditing message response of MG, MCG decides if the state information is consistent with the state information on MGC; if yes, holding the connection; if not, all connections are released by MG.
Description
Technical field
The present invention relates to Media Gateway Controller (MGC, MediaGateway Controller) and media gateway (MG, Media Gateway) in the next generation network (NGN), and realize method for synchronizing connection status after the disconnection between the two.
Technical background
The NGN network is to adopt soft switch (SoftSwitch) technology of separating with control, carrying and professional three that voice, multimedia and multiple business such as mobile are provided.Divide from function, flexible exchanging network can be divided into operation layer, key-course, transport layer and Access Layer from top to down.Wherein: the major function entity of key-course is a media gateway controller MGC, mainly provides and calls out control, connects functions such as control, protocol processes, and the open interface of bottom various network resources is provided for operation layer; The core transmission network of transport layer is the IP packet network, and the passage of various signalings and media flow transmission is provided; The major function entity of Access Layer is media gateway MG, dissimilar access waies is converted into RTP/RTCP (RTP/RTCP Real-time Transport Control Protocol) stream that is adapted at transmitting on the IP network.
Adopt H.248/MGCP agreement between MGC and the MG, MGC is by connection, foundation and the release of the Media Stream on this agreement control MG.H.248/MGCP the link model of protocol definition comprises two main concept of destination node (Termination) and related (Context), and finishes the operation between destination node and the association by message such as Subtract, AuditValue, ServiceChange.Wherein: destination node is a logic entity on the MG, can send and receive one or more medium; Annexation between one group of destination node of related expression is a parameter of describing topological relation and medium mixing/exchange between destination node.
Call out function such as control because MGC is responsible for finishing, Media Stream leads directly between MG alternately, aborted occurs if MGC is connected with network between the MG, and for example: some destination nodes break down; And for example, when protocol message adopts UDP to transmit as low layer, because it is unreliable that UDP transmits, message between MG and the MGC is lost easily, or the like, according to the regulation of consensus standard H.248/MGCP, after MGC detects the MG fault, receive " ServiceChange " message from MG, the method that wherein comprises is Disconnected (disconnection, " disconnection " triggers is to can not get response because MG sends message to MGC), will realize MGC and MG state synchronization with the method that deletion belongs to all connections of this gateway at this moment.This processing method of not considering true connection status, the reliability of NGN network operation is affected, especially under the situation of large-scale gateway, because the destination node number of its configuration is huge, if, will make the reliability of network reduce greatly because a destination node takes place all to delete unusually and all connections that belong to this gateway.
Summary of the invention
Purport of the present invention provides a kind of media gateway and Media Gateway Controller disconnection method for synchronizing connection status after, and the Media Gateway Controller and the media gateway that realize this method, in the hope of improving the reliability of NGN network operation.
To achieve these goals, the invention provides many technical schemes, be followed successively by:
First, media gateway and Media Gateway Controller disconnection method for synchronizing connection status after are characterized in: after MGC receives MG disconnection message, MGC at first detect and MG between the heartbeat state: if heartbeat failure, then MGC sends the message that disconnects all connections to MG, disconnects all connections by MG; If the heartbeat success, then MGC sends audit message to MG, still is in the time of day of destination node on MG of connection status on the present MGC that audits; MGC according in the audit response message of MG with the state information of destination node, judge whether this state information consistent with the state on the MGC: if state consistency then keeps this connection; If state is inconsistent, then MGC sends the message that disconnects this connection to MG, discharges this connection by MG.
At above-mentioned media gateway and Media Gateway Controller disconnection method for synchronizing connection status after, it is characterized in that: described media gateway is Tandem Gateway, IAD or integrated access equipment.
The second, Media Gateway Controller.On the basis of existing MGC module, comprise that also MGC connects control treatment module, is connected control treatment module continuous audit module and heartbeat detection module with this MGC respectively, wherein: the heartbeat detection module, be used for notifying described MGC to connect control treatment module the heartbeat state outcome by the heartbeat state between detection of IP packet network and the MG; The audit module is used for present all destination nodes that are in connection status are audited, and notifies described MGC to connect control treatment module auditing result; MGC connects control treatment module, receives the heartbeat state outcome and the auditing result of described heartbeat detection module and the output of audit module, carries out control and treatment, if i.e.: heartbeat failure is then controlled described MG and disconnected all connections; If heartbeat exists, and is the inconsistent destination node of state for auditing result, then control described MG and discharge corresponding connection.
The 3rd, Media Gateway Controller connects the control and treatment method.Be characterized in: when the disconnection message received from MG, at first and carry out the heartbeat state-detection between the described MG:, make the control and treatment that disconnects described all connections of MG for heartbeat failure situation; For heartbeat success situation, make the control and treatment that present MGC is gone up the audit of all time of days of destination node on described MG that are in connection status, for the state and the inconsistent destination node of the state on the MGC of auditing result, make to discharge described MG and go up the corresponding control and treatment that connects.
The 4th, media gateway.On the basis of existing MG module, comprise that also MG connects control treatment module, is connected audit processing module and the heartbeat processing module that control treatment module links to each other with this MG respectively, wherein: the heartbeat processing module is used for carrying out normal heartbeat detection with MGC and handles; The audit processing module when it receives the audit message of described MGC, is used to collect the state and the related information of relevant destination node, sends to described MGC by the audit response message; MG connects control treatment module, when it receives the release message of described MGC, is used to discharge relevant association and destination node.
The 5th, media gateway connects the control and treatment method.Be characterized in: when MG triggers " disconnection " flow process, keep relevant and all the destination node states of institute, and carry out normal heartbeat detection with MGC and handle; When receiving the audit message of described MGC, collect the state and the related information of relevant destination node, send to described MGC; When receiving the release message of described MGC, discharge relevant association and destination node immediately.
Adopt above-mentioned technical solution, corresponding synchronous mechanism is adopted in the judgement of different heartbeat states and audit situation, also, only real problematic connection is operated, thereby the reliability of NGN network operation is improved by MGC.
Description of drawings
Fig. 1 is one of message flow chart of media gateway disconnection method for synchronizing connection status after of the present invention;
Fig. 2 be media gateway disconnection method for synchronizing connection status after of the present invention message flow chart two;
Fig. 3 is the structured flowchart of Media Gateway Controller;
Fig. 4 is the structured flowchart of media gateway.
Embodiment
One of the present invention: media gateway disconnection method for synchronizing connection status after
As shown in Figure 1, adopt H.248 agreement between MGC and the MG, the message flow of MG survival:
At first, MGC is when receiving the ServiceChange message that has disconnection, and after giving ServiceChange Reply response message, the heartbeat state between detection and the MG sends HeartBeat heartbeat message MG and sends HeartBeat Reply response message; MGC judges the heartbeat success.
Then, MGC present destination node that still is in connection status on it sends AuditValue audit message, the time of day of finalization of auditing point on MG; MG sends AuditValue Reply response message;
MGC according among the AuditValue Reply with media gateway on the state information of this destination node, judge whether this state consistent with the state on the MGC: if state consistency then keeps this connection; If state is inconsistent, send the Subtract message that has corresponding association of deletion and destination node;
At last, the inconsistent connection of MG release condition, and to MGC transmission Subtract Reply response message.
As shown in Figure 2, MG failure flow process:
MGC is when receiving the ServiceChange message that has disconnection, and after giving ServiceChange Reply response message, the heartbeat state between detection and the MG sends the HeartBeat heartbeat message, and fails to be subjected to the response message of MG, then judges the heartbeat failure;
MGC sends the Subtract message have the relevant and destination node of deletion institute, disconnects belonging to all connections of this MG, the release resource.
Above-mentioned media gateway can be Tandem Gateway, IAD or integrated access equipment.
The present invention's two: Media Gateway Controller
As shown in Figure 3, Media Gateway Controller is on the basis of existing MGC module, comprises that also MGC connects control treatment module 11, audit module 12 and heartbeat detection module 13, wherein:
MGC connects control treatment module 11, receives the heartbeat state outcome and the auditing result of heartbeat detection module 13 and 12 outputs of audit module, carries out control and treatment, that is: for the heartbeat failure, then control MG and disconnect all connections; If heartbeat exists, and is the inconsistent destination node of state for auditing result, then control MG and discharge corresponding connection.
The present invention's three: MGC connects the control and treatment method
MGC when receiving that MG has the ServiceChange message of disconnection, at first detect by the IP packet network by the heartbeat detection processing module and MG between the heartbeat state, when heartbeat fail, make the control and treatment of all connections of disconnection MG; When the heartbeat success, notice audit module, the audit module is by the inquiry internal database, present all destination node time of days on described MG that are in connection status are audited, for the state and the inconsistent destination node of the state on the MGC of auditing result, make to discharge described MG and go up the corresponding control and treatment that connects.
The present invention's four: media gateway
As shown in Figure 4, media gateway is on the basis of existing MG module, comprises that also MG connects control treatment module 21, audit processing module 22 and heartbeat processing module 23, wherein:
MG connects control treatment module 21, when it receives the release message of MGC, is used to discharge relevant association and destination node.
The present invention's five: MG connects the control and treatment method
MG does not carry out any processing to related and destination node when the MGC transmission has the ServiceChange message of disconnection; Heartbeat processing module and MGC carry out normal heartbeat detection to be handled; When receiving the audit message of MGC, the audit processing module must be collected the state and the related information of relevant destination node, sends to MGC by the audit response message; When receiving the release message of MGC, discharge relevant association and destination node immediately.
Above embodiment is only for the usefulness that the present invention is described, but not limiting the scope of the invention.Relevant those skilled in the art under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, and the technical scheme that all are equal to also should belong within the category of the present invention's protection, is limited by each claim.
Claims (6)
1. media gateway and Media Gateway Controller disconnection method for synchronizing connection status after is characterized in that:
After MGC receives MG disconnection message, MGC at first detect and MG between the heartbeat state:
If the heartbeat failure, then MGC sends the message that disconnects all connections to MG, disconnects all connections by MG;
If the heartbeat success, then MGC sends audit message to MG, still is in the time of day of destination node on MG of connection status on the present MGC that audits;
MGC according in the audit response message of MG with the state information of destination node, judge whether this state information consistent with the state on the MGC: if state consistency then keeps this connection; If state is inconsistent, then MGC sends the message that disconnects this connection to MG, discharges this connection by MG.
2. media gateway according to claim 1 and Media Gateway Controller disconnection method for synchronizing connection status after is characterized in that: described media gateway is Tandem Gateway, IAD or integrated access equipment.
3. a Media Gateway Controller comprises the MGC module, it is characterized in that: comprise that also MGC connects control treatment module, is connected audit module and the heartbeat detection module that control treatment module links to each other with this MGC respectively, wherein:
The heartbeat detection module is used for notifying described MGC to connect control treatment module the heartbeat state outcome by the heartbeat state between detection of IP packet network and the MG;
The audit module is used for present all destination nodes that are in connection status are audited, and notifies described MGC to connect control treatment module auditing result;
MGC connects control treatment module, receives the heartbeat state outcome and the auditing result of described heartbeat detection module and the output of audit module, carries out control and treatment, if i.e.: heartbeat failure is then controlled described MG and disconnected all connections; If heartbeat exists, and is the inconsistent destination node of state for auditing result, then control described MG and discharge corresponding connection.
4. the connection control and treatment method of a Media Gateway Controller is characterized in that:
When the disconnection message received from MG, at first and carry out the heartbeat state-detection between the described MG:, make the control and treatment that disconnects described all connections of MG for heartbeat failure situation; For heartbeat success situation, make the control and treatment that present MGC is gone up the audit of all time of days of destination node on described MG that are in connection status, for the state and the inconsistent destination node of the state on the MGC of auditing result, make to discharge described MG and go up the corresponding control and treatment that connects.
5. a media gateway comprises the MG module, it is characterized in that: comprise that also MG connects control treatment module, is connected audit processing module and the heartbeat processing module that control treatment module links to each other with this MG respectively, wherein:
The heartbeat processing module is used for carrying out normal heartbeat detection with MGC and handles;
The audit processing module when it receives the audit message of described MGC, is used to collect the state and the related information of relevant destination node, sends to described MGC by the audit response message;
MG connects control treatment module, when it receives the release message of described MGC, is used to discharge relevant association and destination node.
6. the connection control and treatment method of a media gateway is characterized in that:
When MG triggers " disconnection " flow process, keep relevant and all the destination node states of institute, and carry out normal heartbeat detection with MGC and handle; When receiving the audit message of described MGC, collect the state and the related information of relevant destination node, send to described MGC; When receiving the release message of described MGC, discharge relevant association and destination node immediately.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150544B (en) * | 2007-10-25 | 2010-06-02 | 中兴通讯股份有限公司 | A relay status check method |
| CN101778107A (en) * | 2010-01-15 | 2010-07-14 | 中兴通讯股份有限公司 | State synchronization processing method and device |
| WO2010145407A1 (en) * | 2009-10-12 | 2010-12-23 | 中兴通讯股份有限公司 | Method, service node device and access node device for keep-alive processing |
| CN102821011A (en) * | 2012-08-28 | 2012-12-12 | 北京星网锐捷网络技术有限公司 | Opposite terminal state detection method, device and equipment |
| CN102857406A (en) * | 2012-07-23 | 2013-01-02 | 大唐移动通信设备有限公司 | Message processing method and device for JBM (Java message service) system |
| CN111935105A (en) * | 2020-07-23 | 2020-11-13 | 深信服科技股份有限公司 | Auditing method, terminal equipment, network equipment and server |
-
2005
- 2005-08-16 CN CNB200510028833XA patent/CN100525204C/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150544B (en) * | 2007-10-25 | 2010-06-02 | 中兴通讯股份有限公司 | A relay status check method |
| WO2010145407A1 (en) * | 2009-10-12 | 2010-12-23 | 中兴通讯股份有限公司 | Method, service node device and access node device for keep-alive processing |
| CN101674669B (en) * | 2009-10-12 | 2014-11-05 | 中兴通讯股份有限公司 | Method, service node equipment and access node equipment for keep-alive processing |
| CN101778107A (en) * | 2010-01-15 | 2010-07-14 | 中兴通讯股份有限公司 | State synchronization processing method and device |
| CN101778107B (en) * | 2010-01-15 | 2014-03-12 | 中兴通讯股份有限公司 | State synchronization processing method and device |
| CN102857406A (en) * | 2012-07-23 | 2013-01-02 | 大唐移动通信设备有限公司 | Message processing method and device for JBM (Java message service) system |
| CN102857406B (en) * | 2012-07-23 | 2015-09-09 | 大唐移动通信设备有限公司 | A kind of message treatment method of JBM system and device |
| CN102821011A (en) * | 2012-08-28 | 2012-12-12 | 北京星网锐捷网络技术有限公司 | Opposite terminal state detection method, device and equipment |
| CN111935105A (en) * | 2020-07-23 | 2020-11-13 | 深信服科技股份有限公司 | Auditing method, terminal equipment, network equipment and server |
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| Publication number | Publication date |
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| CN100525204C (en) | 2009-08-05 |
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