CN1937482B - H.323 network element and dualhoming softswitch device intercommunicating method and device - Google Patents
H.323 network element and dualhoming softswitch device intercommunicating method and device Download PDFInfo
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- CN1937482B CN1937482B CN2006101364462A CN200610136446A CN1937482B CN 1937482 B CN1937482 B CN 1937482B CN 2006101364462 A CN2006101364462 A CN 2006101364462A CN 200610136446 A CN200610136446 A CN 200610136446A CN 1937482 B CN1937482 B CN 1937482B
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Abstract
This method includes the following steps:The H.323 net element judges that whether an error occurs on the 1st call path of the 1st soft switch device or on the 2nd call path of the 2nd soft switch device in the twin adscription. When the 1st path goes wrong and the 2nd does not, the H.323 net element sends the call message to the 2nd soft switch via the 2nd call path. Base on the method mentioned, this invention also offers a device communicating between the H.323 net element and the twin adscription. This invention can check out faults on the call paths from the H.323 net element to the soft switch timely. This can avoid effectively the problem of the overtime call waiting or call establishing failure during the net element sends the call message. These save the resource and raise customer's taste.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to the method and the device of a kind of H.323 network element and dualhoming softswitch device intercommunicating.
Background technology
In next generation network (NGN), system disposes two Softswitch simultaneously, when one of them Softswitch breaks down or breaks down to the path of this Softswitch, another Softswitch is activated, and takes over the part or all of business of the last Softswitch that breaks down.Two Softswitch like this have mutual-aid function, and claim that Softswitch that is activated to be in assistance activated state.
Dual-homed networking mode in the next generation network can be divided into two kinds:
First kind is that two dual-homed Softswitch are active and standby networking mode with relation.
In first kind of networking mode, two Softswitch with mutual-aid function can be positioned at different physical geographical zones, and are an exchange in networking.Two Softswitch of active and standby usefulness are except that external IP address difference, and hardware configuration, software arrangements and common data are all identical.
Main with disposing the heartbeat link between Softswitch and the standby Softswitch, this heartbeat link is used to detect the working condition of opposite end Softswitch.When the Softswitch at two ends was working properly, each media gateway only sent to register requirement to lead and handles with Softswitch usually; Break down with Softswitch when main, standby Softswitch can't detect main heartbeat signal with Softswitch, and, the fault of registration failure appears in each media gateway, so when system adopts automatic switching mode, system can activate standby Softswitch automatically, is taken over the gateway control and professional control of system by standby Softswitch.Subsequently, alter course standby Softswitch of each media gateway is initiated register requirement.
Second kind is two networking modes that Softswitch is a load sharing.
In second kind of networking mode, two Softswitch with mutual-aid function can be positioned at different physical geographical zones, and are presented as two independently exchanges in networking.Under the normal condition, the media gateway in certain territorial scope is controlled and managed to two Softswitch separately, and provide professional to the user respectively.Hardware configuration, software arrangements in two Softswitch are all relative with common data independent, and have different external IP addresses.
Dispose the heartbeat link equally between two Softswitch in second kind of networking mode.Can't detect the heartbeat message of another Softswitch N as one of them Softswitch M, and the fault of registration failure appears in each media gateway, system can activate Softswitch M so, is taken over the business of originally being handled by Softswitch N by Softswitch M.Subsequently, each media gateway will originally send to business that Softswitch N handles and send elsewhere and give the Softswitch M that helps each other and handle.
H.323 network is based on the multimedia communications system of packet network, for realizing communicating by letter between network H.323 and the dual home soft switching device, often need be at network element H.323, as being configured to the call path of one of them dual-homed Softswitch on H.323GK, H.323 network element sends to message related to calls by this call path the Softswitch of opposite end.In case H.323 network element breaks down to the call path of this Softswitch, will cause the overtime or call setup failure of Call Waiting of H.323 network element initiation, and follow-up message related to calls can't be processed by this call path.
Prior art at the solution that the problems referred to above provide is, is configured to the call path of two dual-homed Softswitch on network element H.323.H.323 network element at first sends to message related to calls one of them Softswitch according to configuration, handle as first Softswitch, the message related to calls wait timeout or the call setup failure of sending when network element H.323, H.323 after the network element call path that is determined to first Softswitch broke down, the call path that passes through to second Softswitch again sent to second Softswitch with subsequent call messages and handles.
The problem that prior art exists is, H.323 network element can not foresee whether the call path of this Softswitch is fault before sending message related to calls to Softswitch, even under the situation that first call path to first Softswitch has broken down, H.323 network element still sends message related to calls by this call path, the message related to calls wait timeout or the call setup failure that must cause network element H.323 to send, therefore prior art can't guarantee the H.323 intercommunication of network element and dual home soft switching device, and brings the problem of poor user experience thus.
In addition, after H.323 network element is being determined to the first call path fault of first Softswitch, by second call path message related to calls is sent to second Softswitch again, this repeats to send the process of message related to calls actual is to waste of network resources.
Summary of the invention
In view of this, first purpose of the present invention is: the method for a kind of H.323 network element and dualhoming softswitch device intercommunicating is provided, guarantees the H.323 intercommunication of network element and dual home soft switching device.
Second purpose of the present invention is: the system of a kind of H.323 network element and dualhoming softswitch device intercommunicating is provided, guarantees the H.323 intercommunication of network element and dual home soft switching device.
First aspect of the object of the invention is achieved through the following technical solutions:
The invention provides the method for a kind of H.323 network element and dualhoming softswitch device intercommunicating, it is characterized in that, may further comprise the steps:
A, H.323 network element sends heartbeat message to two Softswitch respectively, determine dual-homed in first call path of first Softswitch whether break down with second call path to second Softswitch;
B, when definite first call path break down and second call path just often, H.323 network element sends to second Softswitch with message related to calls by second call path.
Preferably, when first Softswitch is the main Softswitch of using, second Softswitch is standby Softswitch, in the steps A H.323 network element send heartbeat message to two Softswitch respectively, determine dual-homed in first call path of first Softswitch with the method whether second call path to second Softswitch breaks down be:
H.323 network element sends heartbeat message to two Softswitch respectively;
If H.323 network element receives the response message of the heartbeat message that returns from first call path in the time standard of setting, then H.323 network element determines that first call path is normal; Otherwise H.323 network element determines that first call path breaks down; H.323 network element determines that second call path is normal receive the response message of the heartbeat message that returns from second call path in the time standard of setting after.
Preferably, when first Softswitch and second Softswitch are the relations of load sharing, in the steps A H.323 network element send heartbeat message to two Softswitch respectively, determine dual-homed in first call path of first Softswitch with the method whether second call path to second Softswitch breaks down be:
H.323 network element sends heartbeat message to two Softswitch respectively;
If H.323 network element receives the response message of the heartbeat message that returns from first call path and second call path in the time standard of setting, then H.323 network element determines that first call path and second call path are all normal;
If H.323 network element receives the response message that returns from second call path in the time standard of setting, but do not receive the response message of the heartbeat message that returns from first call path, then H.323 network element determines that first call path breaks down; Second call path is normal.
H.323 network element to the method for two Softswitch transmission heartbeat message is respectively:
The IP address of configuration first Softswitch and second Softswitch on network element H.323;
H.323 network element sends heartbeat message to two Softswitch respectively according to described IP address.
Preferably, described heartbeat message is the address location request LRQ message of carrying effective called number, and the response message that Softswitch returns is that address location is confirmed LCF message;
Perhaps, described heartbeat message is the address location request LRQ message of carrying invalid called number, and the response message that Softswitch returns is an address location refusal LRJ message.
Described method further comprises: the preferred path that the message related to calls of specifying called number or called number prefix is carried in transmission is set to first call path, and inferior routing directly is set to second call path;
Described message related to calls is to carry the message related to calls of specifying called number or called number prefix;
When definite first call path does not break down, send described message related to calls by first call path.
Preferably, when first Softswitch is the main Softswitch of using, when second Softswitch was standby Softswitch, described appointment called number or called number prefix were any called number or called number prefix in all called numbers of H.323 network element control or the called number prefix;
When first Softswitch and second Softswitch are load sharing when concerning, described appointment called number or called number prefix are any called number or called number prefix in the part called number of H.323 network element control or the called number prefix.
H.323GK or H.323 preferably, gateway is H.323GW for gatekeeper H.323 for described H.323 network element.
Second aspect of the object of the invention is achieved through the following technical solutions:
The invention provides the device of a kind of H.323 network element and dualhoming softswitch device intercommunicating, this device comprises: fault detection module, call processing module;
Whether described fault detection module sends heartbeat message to two Softswitch respectively, detect the call path of Softswitch in dual-homed of network element H.323 and break down, and the call path information that breaks down is offered call processing module;
Described call processing module, when not receiving the call path information that breaks down that fault detection module provides, message related to calls is sent by first call path, when receiving the call path information that breaks down that fault detection module provides, message related to calls is sent by second call path that does not break down.
Described device also comprises:
The Reflector module is used for the fault detect result of storage failure detection module, by call processing module before sending message related to calls from this module read failure flag information.
The technical scheme that is provided by the invention described above as seen, the present invention is by detecting Softswitch call path state before H.323 the Softswitch of network element in dual-homed makes a call, break down when detecting first call path, preparation is sent by second call path that does not break down by the message related to calls that first call path sends, effectively avoiding H.323, network element sends the overtime or call setup failure problem of Call Waiting that message related to calls causes by the call path that breaks down, guarantee the H.323 intercommunication of network element and dual home soft switching device, when improving user experience, conserve network resources.And H.323 the present invention can realize network element to the detection of call path situation based on existing interacting message pattern, convenient and easy.
Description of drawings
Fig. 1 is by sending the process chart that heartbeat message detects first preferred embodiment of first call path and second call path in the method provided by the invention;
Fig. 2 be provided by the invention H.323GK with the interacting message schematic diagram of active and standby two Softswitch with relation working properly;
Fig. 3 is by sending the process chart that heartbeat message detects second preferred embodiment of first call path and second call path in the method provided by the invention;
Fig. 4 be provided by the invention H.323GK with the interacting message schematic diagram of two Softswitch of load sharing working properly relation;
Fig. 5 is the process chart of the 3rd preferred embodiment of method provided by the invention;
Fig. 6 is the interacting message schematic diagram between two Softswitch of network element and load sharing H.323 among Fig. 5;
Fig. 7 is the interacting message schematic diagram between two Softswitch of network element and active and standby usefulness H.323 among Fig. 5;
Fig. 8 is the structural representation of first preferred embodiment of device provided by the invention;
Fig. 9 is the structural representation of second preferred embodiment of device provided by the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawings and the specific embodiments the present invention is described in further detail.
Whether the present invention mainly breaks down by the call path that network element H.323 detects dual home soft switching device; When first call path that detects first Softswitch breaks down, then H.323 network element sends second call path of message related to calls by second Softswitch.The present invention can obtain the call path state of this Softswitch at network element H.323 by this way before Softswitch sends message related to calls, avoid the message related to calls wait timeout or the call setup failure of breaking down and causing because of this Softswitch or intermediate line link.
When the present invention does detection to call path, adopt by first call path and second call path and send the message that is used for the checkout equipment operating state to first Softswitch and second Softswitch respectively.Wherein, preferably, described transmission can be adopted the mode of timed sending, and the described message that is used for the checkout equipment operating state can be heartbeat message.This heartbeat message can be existing LRQ (Location Request, an address location request) message.After first or second Softswitch receives and handles this LRQ message, can be in the preset time standard return the LCF of message (Location Confirm in response to network element H.323, address location is confirmed) message or LRJ (Location Reject, address location refusal) message.H.323 after network element receives response message in the preset time standard, just can determine that corresponding call path state is normal.In the preset time standard, fail to receive response message when network element H.323, think that then corresponding call path breaks down.Like this, can avoid the H.323 call path transmission message related to calls of network element by having broken down, and the method for subsequent processing that provides according to the present invention, the Softswitch that message related to calls is issued the opposite end by the normal call path of state is handled.In actual applications, also can detect the failure condition of the call path of two Softswitch by other similar methods.
H.323GK to be example, describe the method for H.323 network element provided by the invention and dualhoming softswitch device intercommunicating in detail below.
At first be clear and definite function H.323GK, need H.323GK going up configuration data, the data of configuration comprise:
1, disposes the H.323GK address of two Softswitch of relaying of conduct, as the IP address;
2, the transmission cycle of configuration heartbeat message;
Promptly H.323GK send the blanking time of a heartbeat message respectively to two Softswitch.
3, the judgment rule of configuration call path fails;
Under the normal condition,, can return a response message and give H.323GK when Softswitch receives the heartbeat message that H.323GK sends.Whether normal for judging the call path state that H.323GK arrives Softswitch, need on H.323GK, dispose a judgment rule, this judgment rule can be, if Softswitch fails to return response message in the time standard of setting, the call path that so H.323GK determines this Softswitch breaks down.Described time standard can be set to the transmission cycle of one or several heartbeat message, also can be provided with otherwise.
4, configuration first call path and second call path are used to send the priority of message related to calls;
Carry the called number or the called number prefix information of H.323KG control in the message related to calls,, therefore, need clear and definite message related to calls which kind of call path preferentially to send to the Softswitch of opposite end by owing to there are two call paths.This configuration mainly is that the preferred path that the message related to calls of specifying called number or called number prefix is carried in transmission is set to first call path, and inferior routing directly is set to second call path; When definite first call path does not break down, send described message related to calls by first call path.This configuration mainly is to consider which IP address is message related to calls sent to, and by the problem of which processing in two Softswitch, comprises following two kinds of situations:
At first Softswitch and second Softswitch is under the active and standby situation with relation, and described appointment called number or called number prefix are any called number or called number prefix in all called numbers of H.323 network element control or the called number prefix.The configurable preferred path that is used to send the message related to calls of carrying called number or called number prefix is first call path to first Softswitch, to second call path of second Softswitch be time routing directly.When the first call path state is normal, H.323GK network element is selected first call path, all-calls message is sent to first Softswitch handle; When the call path to first Softswitch breaks down, H.323GK select second call path again, all-calls message is sent to second Softswitch handle.
When first Softswitch and second Softswitch are the relations of load sharing, described appointment called number or called number prefix are any called number or called number prefix in the part called number of H.323 network element control or the called number prefix.Illustrate: if H.323GK control the message related to calls of certain 100 called number, the so configurable preferred path that is used to send the message related to calls of certain 50 called number wherein or called number prefix correspondence is first call path to first Softswitch, and inferior routing directly is second call path to second Softswitch.Under the normal situation of preferred path state, H.323GK the message related to calls with these 50 called number correspondences sends to first Softswitch by first call path; When preferred path breaks down, H.323GK directly the message related to calls of these follow-up 50 called numbers or called number prefix correspondence is sent to the processing of second Softswitch by inferior routing again.The configurable preferred path that is used to send other 50 called numbers is second call path to second Softswitch, and inferior routing directly is first call path to first Softswitch.But this configuration result reference table 1.
| Called number or called number prefix | Preferred path | Inferior routing footpath |
| XXX1 | First call path (IP of first Softswitch) | Second call path (IP of second Softswitch) |
| ... | First call path | Second call path |
| XXX50 | First call path | Second call path |
| YYY1 | Second call path | First call path |
| ... | Second call path | First call path |
| YYY50 | Second call path | First call path |
Table 1
Above-mentioned first call path is the sign of the call path of corresponding two Softswitch with second call path, is relative therefore.
When system brings into operation, H.323GK carry out intercommunication according to above-mentioned pre-configured data and dual home soft switching device.
Still to be example H.323GK, be described with reference to the accompanying drawings the H.323 implementation procedure of network element and dualhoming softswitch device intercommunicating of guaranteeing provided by the invention.
Shown in Figure 1 is first kind of networking mode mentioning in the dual-homed employing background technology, promptly first Softswitch and second Softswitch are active and standby with relation, detect the process chart of first preferred embodiment of first call path and second call path in the said method provided by the invention by the transmission heartbeat message.This flow process may further comprise the steps:
Step 101, in initial condition, it is working properly H.323GK to give tacit consent to two Softswitch.
As long as under situation H.323GK working properly, H.323GK all can regularly send heartbeat message, no matter and whether normal to the call path state of two Softswitch to two Softswitch.
Step 103, first Softswitch by first call path to H.323GK returning response message.
If H.323GK the heartbeat message of Fa Songing is the LRQ message of carrying called number, this called number can be effective so, in this case, first Softswitch working properly can find IP address and the port corresponding with called number, and first Softswitch will be to H.323GK returning LCF message as the response message that receives LRQ message so; This called number also can be invalid, and in this case, first Softswitch can be to H.323GK returning LRJ message as the response message that receives LRQ message.No matter be LCF message or LRJ message, be first Softswitch and handle after the LRQ message to the response message that H.323GK returns, the call path state that promptly arrives this Softswitch is normal.
According to prior art, because second Softswitch is in stand-by state, be not activated as yet, therefore, do not handle the LRQ message that H.323GK sends, promptly can't be to H.323GK returning response message.
Above-mentioned steps 101 H.323GK can be with reference to figure 2 with active and standby interacting message with two Softswitch that concern working properly to step 104.Among this figure,, understand the affirmation message of handling this message related to calls to H.323GK returning when two Softswitch are received message related to calls.Subsequent message is mutual identical with existing interacting message.
As shown in Figure 3, be second kind of networking mode mentioning in the dual-homed employing background technology, when promptly two Softswitch are concerning of load sharing, detect the process chart of second preferred embodiment of first call path and second call path in the said method provided by the invention by the transmission heartbeat message.This flow process may further comprise the steps:
All descriptions of step 301 are described identical with all of step 101.
As long as under situation H.323GK working properly, H.323GK all can regularly send heartbeat message, no matter and whether two Softswitch are working properly to two Softswitch.
In normal operation, first Softswitch and second Softswitch all can return LCF or LRJ response message in the time standard of above-mentioned H.323GK configuration after receiving LRQ message.
Step 304, H.323GK send the priority of message related to calls according to the call path of configuration, select preferred path, the Softswitch that message related to calls is sent to the opposite end is handled.
In this step, establishes the calling of H.323GK controlling 100 called numbers and initiate, and in the hypothesis configuration, the preferred path of the message related to calls correspondence of certain 40 called number is first call path that corresponding inferior routing directly is second call path; The preferred path of the message related to calls correspondence of other 60 called numbers is second call path, and corresponding inferior routing directly is first call path.Under first call path and second call path situation working properly, if message related to calls is carried one of them called number of described certain 40 called number, this message related to calls sends to first Softswitch by first call path; If message related to calls is carried one of them called number of described other 60 called numbers, this message related to calls sends to second Softswitch by second call path.
Above-mentioned steps 301 H.323GK can be with reference to figure 4 with the interacting message of two Softswitch of load sharing working properly relation to step 304.Among this figure,, understand the affirmation message of handling this message related to calls to H.323GK returning when two Softswitch are received message related to calls.Subsequent message is mutual identical with existing interacting message.
When Fig. 2 or the call path to first Softswitch shown in Figure 4 break down, the handling process of the 3rd preferred embodiment of said method provided by the invention as shown in Figure 5.This flow process may further comprise the steps:
Step 501, the judgment rule that H.323GK breaks down according to call path, first call path that is determined to first Softswitch breaks down.
If H.323GK in the time standard of setting, receive the response message that first Softswitch sends, determine that so H.323GK the first call path state is normal, otherwise first call path breaks down.
Step 502, H.323GK Reflector is set for first call path that breaks down.
Step 503, H.323GK receive the response message of second Softswitch after, determine that second Softswitch is working properly.
At dual-homed end, when first Softswitch is the main Softswitch of using, second Softswitch is standby Softswitch, if first Softswitch breaks down, dual-homed meeting activates as the second standby Softswitch, like this according to the agreement of self, second Softswitch can be handled the heartbeat message that receives, and to the response message that H.323GK sends heartbeat message.For first Softswitch and second Softswitch of load sharing, as long as second Softswitch is working properly, all can be to H.323GK returning the heartbeat response message.
Step 504, H.323GK before sending message related to calls, judge first call path and break down according to Reflector, H.323GK according to disposing the priority that first call path and second call path are used to send message related to calls, select to send the inferior routing footpath of message related to calls, promptly second call path sends to second Softswitch with follow-up message related to calls and handles.
In this step, first call path was for sending the preferred path of message related to calls during establishing was put, i.e. this message related to calls preparation sends by first call path.When determining that H.323GK first call path breaks down, Reflector is set for this call path.H.323GK when sending subsequent call messages, at first judge by searching Reflector whether the preferred path that sends this message related to calls is available,, then this message related to calls is sent by preferred path if available; If find Reflector,, this message related to calls is sent to time Softswitch of opposite end, routing footpath handle then according to inferior routing footpath for this message related to calls configuration.
Above-mentioned steps 501 is to step 504, and is when two Softswitch are active and standby with relation, H.323GK after first Softswitch of main usefulness breaks down, shown in Figure 6 with the interacting message reference of two Softswitch.Among this figure,, understand the affirmation message of handling this message related to calls to H.323GK returning when second Softswitch is received message related to calls.Subsequent message is mutual identical with existing interacting message.When the relation that two Softswitch are load sharings, H.323GK after first Softswitch breaks down, shown in Figure 7 with the interacting message reference of two Softswitch.Among this figure,, understand the affirmation message of handling this message related to calls to H.323GK returning when second Softswitch is received message related to calls.Subsequent message is mutual identical with existing interacting message.
In the present embodiment, H.323GK before sending message related to calls, confirm to prepare for to send the fault state of the preferred path of this message related to calls, only under the normal situation of this preferred path state, just message related to calls is sent by this call path; When determining that H.323GK this preferred path breaks down, then H.323GK directly send subsequent call messages by inferior routing.
The present invention also provides the device of a kind of H.323 network element and dualhoming softswitch device intercommunicating, the realization that this device provides according to the invention described above H.323 method of network element and dualhoming softswitch device intercommunicating designs, and this device can be arranged at H.323GK going up in the network H.323.
First preferred embodiment of device provided by the invention as shown in Figure 8, this device comprises with lower module: fault detection module 801, call processing module 802.
Whether described fault detection module 801 detects network element H.323 and breaks down to the call path of dual home soft switching device, and the call path information that breaks down in the testing result is offered message related to calls sending module 802.
Described call processing module 802 is handled message related to calls according to the fault detect result by the Softswitch that the call path that does not break down sends to the opposite end.
Whether when specific implementation, fault detection module 801 can regularly send heartbeat message respectively to two Softswitch, and break down according to the call path that the response message that can two Softswitch return heartbeat message detects this Softswitch; At first and second Softswitch is under the active and standby situation with relation, if first Softswitch of main usefulness can echo at official hour standard internal return and answer message, then to be determined to the first call path state of first Softswitch normal for fault detection module 801; Otherwise fault detection module 801 detects first call path and breaks down, and the fault detect result is offered call processing module 802.When first and second Softswitch is the relation of load sharing, two Softswitch all need return the response message of heartbeat message in the official hour standard so; If have only one of them can return response message, fault detection module 801 detects corresponding call path and breaks down so, and fail result is offered call processing module 802.
Call processing module 802, when not receiving the call path information that breaks down that fault detection module provides, message related to calls is sent by first call path, when receiving the call path information that breaks down that fault detection module 801 provides, message related to calls is sent by second call path that does not break down.
Call processing module 802 is according to the priority of the call path of the transmission message related to calls of configuration, under the normal situation of preferred path state, message related to calls is sent by preferred path, after receiving the call path information that breaks down that fault detection module 801 provides, the Softswitch that this message related to calls sends to the opposite end is handled by inferior routing footpath.
Based on device shown in Figure 8, Reflector module 803 as shown in Figure 9 also can be provided in the said apparatus that provides of the present invention, this module is used for the fault detect result of storage failure detection module 801, by call processing module 802 before sending message related to calls from this module read failure flag information, when the Reflector information that reads is that the preferred path that sends message related to calls breaks down, then message related to calls is directly sent by inferior routing.
In sum, the present invention is by detecting Softswitch call path state at network element H.323 before dual home soft switching device makes a call, in time detect the call path that breaks down, and the message related to calls after inciting somebody to action is handled by the Softswitch that the call path that does not break down sends to the opposite end, effectively avoiding H.323, network element sends the overtime or call setup failure problem of Call Waiting that message related to calls causes by the call path that breaks down, guarantee the H.323 intercommunication of network element and dual home soft switching device, when improving user experience, conserve network resources.And H.323 the present invention can realize network element to the detection of call path situation based on existing interacting message pattern, convenient and easy.
Claims (10)
1. the method for network element and dualhoming softswitch device intercommunicating H.323 is characterized in that, may further comprise the steps:
A, H.323 network element sends heartbeat message to two Softswitch respectively, determine dual-homed in first call path of first Softswitch whether break down with second call path to second Softswitch;
B, when definite first call path break down and second call path just often, H.323 network element sends to second Softswitch with message related to calls by second call path.
2. method according to claim 1, it is characterized in that, when first Softswitch is the main Softswitch of using, second Softswitch is standby Softswitch, in the steps A H.323 network element send heartbeat message to two Softswitch respectively, determine dual-homed in first call path of first Softswitch with the method whether second call path to second Softswitch breaks down be:
H.323 network element sends heartbeat message to two Softswitch respectively;
If H.323 network element receives the response message of the heartbeat message that returns from first call path in the time standard of setting, then H.323 network element determines that first call path is normal; Otherwise H.323 network element determines that first call path breaks down; H.323 network element determines that second call path is normal receive the response message of the heartbeat message that returns from second call path in the time standard of setting after.
3. method according to claim 1, it is characterized in that, when first Softswitch and second Softswitch are the relations of load sharing, in the steps A H.323 network element send heartbeat message to two Softswitch respectively, determine dual-homed in first call path of first Softswitch with the method whether second call path to second Softswitch breaks down be:
H.323 network element sends heartbeat message to two Softswitch respectively;
If H.323 network element receives the response message of the heartbeat message that returns from first call path and second call path in the time standard of setting, then H.323 network element determines that first call path and second call path are all normal;
If H.323 network element receives the response message that returns from second call path in the time standard of setting, but do not receive the response message of the heartbeat message that returns from first call path, then H.323 network element determines that first call path breaks down; Second call path is normal.
4. according to claim 1,2 or 3 described methods, it is characterized in that H.323 network element to the method for two Softswitch transmission heartbeat message is respectively:
The IP address of configuration first Softswitch and second Softswitch on network element H.323;
H.323 network element sends heartbeat message to two Softswitch respectively according to described IP address.
5. according to claim 1,2 or 3 described methods, it is characterized in that described heartbeat message is the address location request LRQ message of carrying effective called number, and the response message that Softswitch returns is that address location is confirmed LCF message;
Perhaps, described heartbeat message is the address location request LRQ message of carrying invalid called number, and the response message that Softswitch returns is an address location refusal LRJ message.
6. method according to claim 1, it is characterized in that, described method further comprises: the preferred path that the message related to calls of specifying called number or called number prefix is carried in transmission is set to first call path, and inferior routing directly is set to second call path;
Described message related to calls is to carry the message related to calls of specifying called number or called number prefix;
When definite first call path does not break down, send described message related to calls by first call path.
7. method according to claim 6, it is characterized in that, when first Softswitch is the main Softswitch of using, when second Softswitch was standby Softswitch, described appointment called number or called number prefix were any called number or called number prefix in all called numbers of H.323 network element control or the called number prefix;
When first Softswitch and second Softswitch are load sharing when concerning, described appointment called number or called number prefix are any called number or called number prefix in the part called number of H.323 network element control or the called number prefix.
H.323GK or H.323 8. method according to claim 1 is characterized in that, gateway is H.323GW for gatekeeper H.323 for described H.323 network element.
9. device of network element and dualhoming softswitch device intercommunicating H.323, this device comprises: fault detection module, call processing module;
Whether described fault detection module sends heartbeat message to two Softswitch respectively, detect the call path of Softswitch in dual-homed of network element H.323 and break down, and the call path information that breaks down is offered call processing module;
Described call processing module, when not receiving the call path information that breaks down that fault detection module provides, message related to calls is sent by first call path, when receiving the call path information that breaks down that fault detection module provides, message related to calls is sent by second call path that does not break down.
10. device according to claim 9 is characterized in that, described device also comprises:
The Reflector module is used for the fault detect result of storage failure detection module, by call processing module before sending message related to calls from this module read failure flag information.
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| CN1937482B true CN1937482B (en) | 2010-04-21 |
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| CN1536819A (en) * | 2003-04-11 | 2004-10-13 | 华为技术有限公司 | Method for implementing dual home in next network |
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