CN101771773A - Maintaining method and system of M3UA signaling route - Google Patents
Maintaining method and system of M3UA signaling route Download PDFInfo
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- CN101771773A CN101771773A CN200810246867A CN200810246867A CN101771773A CN 101771773 A CN101771773 A CN 101771773A CN 200810246867 A CN200810246867 A CN 200810246867A CN 200810246867 A CN200810246867 A CN 200810246867A CN 101771773 A CN101771773 A CN 101771773A
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Abstract
The invention discloses a maintaining method of an M3UA signaling route. The maintaining method comprises the following steps of: after a local signaling node receives a destination user partial unusable (DUPU) message, extracting reference point information in the DUPU message; judging whether other usable routes exit between the local signaling node and the reference point or not; if so, updating the route between the local signaling node and the reference point into other usable routes without reporting the user unusable message to a local user of the local signaling node; and if not, reporting the user unusable message to a local user of the local signaling node. The invention also discloses a system for implementing the method. The invention combines the processing of the DUPU message and the route maintenance, thereby guaranteeing the update and the maintenance of the route and the correctness of the reported user under complicated networking.
Description
Technical field
The present invention relates to the maintaining method and the system of a kind of M3UA (Signaling System 7 Message Transfer Part 3 UserAdaptation Layer) signalling route.
Background technology
M3UA is media transmission protocol (MTP, a Media Transfer Protocol) third level customer adaptation layer protocol, and the conversion of signaling point code and IP address is provided.Be used between soft switch and SGW, realizing the transmission of Signaling System Number 7 agreement, be supported in the user message that transmits the MTP third level on the IP network, comprise ISDNYong Hubufen (ISUP, ISDN User Part), Telephone User Part (TUP, Telephone User Part) and SCCP message such as (SCCP, Signaling Connection Control Part).
Traditional application scenario of M3UA support is divided into two kinds: the point-to-point networking of SS7 and IP intercommunication networking and IP territory.Deep day by day along with the IP network technical research, the IP networking is also complicated day by day, has occurred the networking situation that interconnects between IP network now, requires M3UA must support IP signaling transit point function, under interconnected networking between IP network, realizes signaling network management function.And in the process that realizes signaling network management, guarantee that the service message reliable transmission is most important.
In M3UA, destination User Part unavailable (DUPU, Destination User PartUnavailable) message is the unreachable or not configuration of upper-layer user's remote subscriber that is used for notifying local signaling node.Have the unavailable cause value of user in the DUPU message parameter: unreachable or not configuration.When receiving DUPU message, local signaling node need report the unavailable or not configuration of upper-layer user's remote subscriber.Fig. 1 is the structural representation of IP networking under the load sharing mode for route, as shown in Figure 1, signaling node A is to there being two route lines between the signaling node D, be respectively A-B-D route and A-C-D route, these two route lines are used simultaneously, be that signaling node A transmits by the mode of load sharing to the SCCP message of signaling node D, if signaling node C, route for the SCCP service between the D breaks down, after then signaling node C receives that signaling node A sends to the SCCP message of signaling node D, the user that can send about signaling node D to signaling node A is the DUPU message of SCCP business, the reporting of user user that signaling node A receives on the DUPU message backward signalling node A is unavailable, then the SCCP service disconnection.Fig. 2 is the structural representation of IP networking under the high low priority routing mode, and as shown in Figure 2, the priority of A-C-D route under the normal condition, is only used the A-C-D route than the priority height of A-B-D route.If the route for the SCCP service between signaling node C, the D breaks down, after then signaling node C receives that signaling node A sends to the SCCP message of signaling node D, the user that can send about signaling node D to signaling node A is the DUPU message of SCCP business, the reporting of user user that signaling node A receives on the DUPU message backward signalling node A is unavailable, then the SCCP service disconnection.At above-mentioned situation, if the SCCP service disconnection will inevitably cause the traffic lost between the user, the user is unavailable may to cause the whole service paralysis, under the serious situation even cause paralysis office fault.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of maintaining method and system of M3UA signalling route, can avoid service disconnection as far as possible, guarantees the reliable transmission of service message.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of maintaining method of M3UA signalling route comprises:
After local signaling node receives the unavailable DUPU message of destination User Part, extract the reference point information in the described DUPU message, judging whether there are other available routes between described local signaling node and the described reference point, is described other available routes with the routing update between described local signaling node and the described reference point when existing.
Preferably, described other available routes comprise alternate routing, load sharing route and low priority route.
Preferably, described DUPU message also includes the unavailable cause value of user profile, user of described local signaling node.
Preferably, described reference point is the signaling node that the destination user is inserted.
Preferably, described method also comprises:
When having other available routes, not to the unavailable message of local user's report of user of described local signaling node; When not having other available routes, to the unavailable message of local user's report of user of described local signaling node.
A kind of maintenance system of M3UA signalling route comprises:
The DUPU message processing unit is used for extracting the reference point information in the described DUPU message after receiving the DUPU message that mails to local signaling node;
The route determining unit is used to judge whether have other available routes between described local signaling node and the described reference point, triggers the routing update unit when existing; And
The routing update unit, being used for the routing update between described local signaling node and the described reference point is described other available routes.
Preferably, described other available routes comprise alternate routing, load sharing route and low priority route.
Preferably, described DUPU message also includes the unavailable cause value of user profile, user of described local signaling node.
Preferably, described reference point is the signaling node that the destination user is inserted.
Preferably, described system also comprises:
The unavailable information reporting of user unit is used for when described route determining unit determines there are not other available routes the unavailable message of local user's report of user to described local signaling node.
Receive the professional DUPU message about certain of remote signaling node when local signaling node after, by extracting the reference point information in the DUPU message, check and whether have other available routes between local signaling node and the reference point, if exist then described other available routes as the current business route, not to the unavailable message of local signaling node report of user, to keep professional unobstructed as far as possible, when only between local signaling node and reference point, not having available route, the unavailable message of ability report of user.Because the M3UA route is to distinguish the user, the present invention combines the processing and the route maintenance of DUPU message, has guaranteed that the route maintenance under the complicated networking upgrades and the report of user correctness.
Description of drawings
Fig. 1 is the structural representation of IP networking under the load sharing mode for route;
Fig. 2 is the structural representation of IP networking under the high low priority routing mode;
Fig. 3 is the schematic flow sheet of maintaining method of the M3UA signalling route of the embodiment of the invention;
Fig. 4 is the structural representation of maintenance system of the M3UA signalling route of the embodiment of the invention.
Embodiment
Basic thought of the present invention is: receive the professional DUPU message about certain of remote signaling node when local signaling node after, by extracting the reference point information in the DUPU message, check and whether have other available routes between local signaling node and the reference point, if exist then described other available routes as the current business route, not to the unavailable message of local signaling node report of user, to keep professional unobstructed as far as possible, when only between local signaling node and reference point, not having available route, the unavailable message of ability report of user.The present invention has avoided the interruption of current business as far as possible when carrying out route maintenance, guaranteed the reliable transmission of service message.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 3 is the schematic flow sheet of maintaining method of the M3UA signalling route of the embodiment of the invention, and as shown in Figure 3, the maintaining method of the M3UA signalling route of the embodiment of the invention comprises:
Step 301: local signaling node extracts the reference point information in the described DUPU message after receiving the unavailable DUPU message of destination User Part.
With Fig. 1, Fig. 2 is that example describes, and wherein, the user of access signaling node A is the promoter of SCCP message.When the route of serving for SCCP between signaling node C, the D broke down, after signaling node C received that signaling node A sends to the SCCP message of signaling node D, the user that can send about signaling node D to signaling node A was the DUPU message of SCCP business.Include unavailable cause value of user profile, user and reference point information on the signaling node A in the DUPU message.Here, user profile is the user who initiates the SCCP service message, is a certain user on the signaling node A.The unavailable cause value of user has two: indicate unreachable or not configuration of indication.Reference point information is the signaling node at the reception user place of SCCP service message, is signaling node D.Extracting reference point information is for confirming available route between local signaling node A and the destination signaling node D.
Step 302: judge whether there are other available routes between described local signaling node and the described reference point, if there is execution in step 303, otherwise execution in step 304.
Be that example describes with Fig. 1, Fig. 2 still, signaling node A judges when the route of serving for SCCP between signaling node C, the D breaks down, judges whether there are other available routes between signaling node A and the signaling node D.For networking mode shown in Figure 1, remain at A-B-D and share route; For networking mode shown in Figure 2, remain in the lower slightly route of A-B-D priority; At Fig. 1, mode shown in Figure 2, execution in step 303.Execution in step 304 when not having other routes.
Step 303: with the routing update between described local signaling node and the described reference point is described other available routes, not to the unavailable message of local user's report of user of described local signaling node.
Upgrade the route between signaling node A and the signaling node D, remove the route of A-C-D transmission SCCP message, the routing update of signaling node A and signaling node D transmission SCCP message is A-B-D, and no longer the SCCP message on signaling node A is initiated the unavailable message of reporting of user user.
Step 304: to the unavailable message of local user's report of user of described local signaling node.
Do not have any available SCCP message route between signaling node A and the signaling node D, the SCCP message on signaling node A is initiated the unavailable message of reporting of user user.
In the inventive method, the available route between local signaling node and the destination signaling node comprises route of the lower and not enabled of alternate routing, load sharing route and priority level etc.The inventive method also is applicable to business such as ISUP, TUP.
Fig. 4 is the structural representation of maintenance system of the M3UA signalling route of the embodiment of the invention, as shown in Figure 4, the maintenance system of the M3UA signalling route of the embodiment of the invention comprises: DUPU message processing unit 40, route determining unit 41, routing update unit 42 and the unavailable information reporting of user unit 43, wherein, DUPU message processing unit 40 is used for extracting the reference point information in the described DUPU message after receiving the DUPU message that mails to local signaling node.Except that reference point information, also comprise the unavailable cause value of user profile, user on the local signaling node in the DUPU message.Route determining unit 41 is used to judge whether have other available routes between described local signaling node and the described reference point, then triggers routing update unit 42 if exist, and does not then trigger the unavailable information reporting of user unit 43 if do not exist.It is described other available routes that routing update unit 42 is used for the routing update between described local signaling node and the described reference point.The unavailable information reporting of user unit 43 is used for the unavailable message of local user's report of user to described local signaling node.
Those skilled in the art are to be understood that, the maintenance system of the M3UA signalling route of the embodiment of the invention realizes that the maintaining method of aforementioned M3UA signalling route designs, the realization function of the each processing unit in the system can be understood with reference to the associated description in the method shown in Figure 3, repeats no more here.The function of each unit can realize by the software program that runs on the processor in the maintenance system of the M3UA signalling route of the embodiment of the invention, also can realize by concrete logical circuit.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. the maintaining method of a M3UA signalling route is characterized in that, comprising:
After local signaling node receives the unavailable DUPU message of destination User Part, extract the reference point information in the described DUPU message, judging whether there are other available routes between described local signaling node and the described reference point, is described other available routes with the routing update between described local signaling node and the described reference point when existing.
2. method according to claim 1 is characterized in that, described other available routes comprise alternate routing, load sharing route and low priority route.
3. method according to claim 1 is characterized in that, described DUPU message also includes the unavailable cause value of user profile, user of described local signaling node.
4. method according to claim 1 is characterized in that, described reference point is the signaling node that the destination user is inserted.
5. method according to claim 1 is characterized in that, described method also comprises:
When having other available routes, not to the unavailable message of local user's report of user of described local signaling node; When not having other available routes, to the unavailable message of local user's report of user of described local signaling node.
6. the maintenance system of a M3UA signalling route is characterized in that, comprising:
The DUPU message processing unit is used for extracting the reference point information in the described DUPU message after receiving the DUPU message that mails to local signaling node;
The route determining unit is used to judge whether have other available routes between described local signaling node and the described reference point, triggers the routing update unit when existing; And
The routing update unit, being used for the routing update between described local signaling node and the described reference point is described other available routes.
7. according to the system described in the claim 6, it is characterized in that described other available routes comprise alternate routing, load sharing route and low priority route.
8. system according to claim 6 is characterized in that, described DUPU message also includes the unavailable cause value of user profile, user of described local signaling node.
9. system according to claim 6 is characterized in that, described reference point is the signaling node that the destination user is inserted.
10. system according to claim 6 is characterized in that, also comprises:
The unavailable information reporting of user unit is used for when described route determining unit determines there are not other available routes the unavailable message of local user's report of user to described local signaling node.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625345A (en) * | 2011-01-28 | 2012-08-01 | 中国移动通信集团公司 | Method and device for protecting application layer signaling route |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625345A (en) * | 2011-01-28 | 2012-08-01 | 中国移动通信集团公司 | Method and device for protecting application layer signaling route |
| WO2012100711A1 (en) * | 2011-01-28 | 2012-08-02 | 中国移动通信集团公司 | Method, device, computer program, and storage medium for protecting signaling route at application layer |
| CN102625345B (en) * | 2011-01-28 | 2015-08-19 | 中国移动通信集团公司 | A kind of application layer signalling route guard method and equipment |
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