CN102164055A - Detection processing method and device for signaling connection control part (SCCP) loop - Google Patents
Detection processing method and device for signaling connection control part (SCCP) loop Download PDFInfo
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Abstract
The invention discloses a detection processing method for a signaling connection control part (SCCP) loop. The method comprises the following steps of: performing global title (GT) routing processing on a connectionless service message transmitted from a second network element by using a first network element; according to a routing result, judging whether a called address in the connectionless service message is modified or not, and judging whether the routed network element of the next hop is the second network element or not; and if the called address is not modified and the routed network element of the next hop is the second network element, determining that the SCCP loop is produced between the first and second network elements. The SCCP loop is judged whether to exist or not by the routing result, so higher efficiency and wider application range are ensured. In addition, the operation of realizing the detection of the SCCP loop based on a hop counter is performed in advance before service processing, so the influence of SCCP loop detection delay on a service is avoided.
Description
Technical field
The embodiment of the invention relates to network communications technology field, relates in particular to the detection processing method and the device of a kind of SCCP (Signaling Connection Control Part, SCCP) loop.
Background technology
SCCP is widely used in the communication network as the important member of No.7 (Signaling System No.7, Signaling System 7(SS-7)).If conflict appears in the data schema between the different network elements in the communication network, can cause the SCCP layer of message loop (being the SCCP loop) to occur, make message between a plurality of network elements, shake, take a large amount of network bandwidths and CPU (Central Processing Unit, central processing unit) resource.
At (the Extended unitdata of the XUDT in the connectionless service message, strengthen unit data) message and LUDT (Long unitdata, long unit data) message, SCCP has been stipulated " hop counter " parameter, and proposed to realize the method for SCCP loop detection based on " hop counter " parameter, this method operation principle is as follows: the initial value of hop counter is 15, in the data service transmittance process, XUDT message or LUDT message are whenever carried out a GT (Global Title) translation, hop counter value wherein subtracts one, when the hop counter value is 0, is illustrated between the network element that transmits this message and the SCCP loop occurred.At this moment, abandon this message and send warning information.
The inventor finds that there are the following problems at least in the prior art in realizing process of the present invention:
Existing SCCP loop detecting method is only applicable to XUDT message or LUDT message, then can't detect the SCCP loop to other connectionless service message.
Summary of the invention
Embodiments of the invention provide a kind of method and device of SCCP loop detection, thereby solve the problem that existing SCCP loop detection is only applicable to XUDT message or LUDT message.
The objective of the invention is to be achieved through the following technical solutions:
A kind of detection processing method of SCCP SCCP loop comprises:
The connectionless service message that first network element is sent second network element is carried out global title GT route and is handled;
Described first network element judges according to route results whether the called address in the described connectionless service message is modified, and whether next jumping network element of route is described second network element;
If described called address is not modified, and next of route to jump network element be described second network element, then determine between described first network element and described second network element, to have produced the SCCP loop.
A kind of detection processing unit of SCCP SCCP loop comprises:
Route processing module, the connectionless service message that is used for that second network element is sent are carried out global title GT route and are handled;
The loop detection module is used for the route results according to described route processing module, judges whether the called address in the described connectionless service message is modified, and whether next jumping network element of route is described second network element; If described called address is not modified and next jumping network element of described route is described second network element, then determine between local network element and described second network element, to have produced the SCCP loop.
Because existing method based on hop counter realization SCCP loop detection need carry out just detecting the SCCP loop after 15 GT translations, and it is only applicable to the SCCP loop detection of XUDT message or LUDT message.The technical scheme that is provided by the embodiment of the invention described above as can be seen, among a kind of embodiment provided by the invention, judge between two network elements, whether there is the SCCP loop by the GT route results, and need not detect based on hop counter, because the GT route is applicable to all types of connectionless service message, so the technical scheme that the embodiment of the invention provides is higher than existing SCCP loop detection mode efficient, and the scope of application is wider.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of method flow diagram that Fig. 1 provides for first embodiment of the invention;
The method flow diagram that Fig. 2 provides for second embodiment of the invention;
The method flow diagram that Fig. 3 provides for third embodiment of the invention;
The method flow diagram that Fig. 4 provides for fourth embodiment of the invention;
The method flow diagram that Fig. 5 provides for fifth embodiment of the invention;
Fig. 6 is apparatus of the present invention example structure schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
First embodiment of the invention provides a kind of detection processing method of SCCP loop, its processing procedure as shown in Figure 1, specific implementation is as follows:
The connectionless service message that S101, first network element are sent second network element is carried out the GT route and is handled;
In embodiments of the present invention, the local network element that will carry out the SCCP loop detection is called first network element, will be called second network element to the network element of first network element transmission connectionless service message.The GT route is here handled can promptly according to the address of SCCP layer, find a signalling point that can reach for GT translates.
Wherein, connectionless service message can comprise: UDT message, or XUDT message, or LUDT message etc.
S102, above-mentioned first network element judge according to route results whether the called address in the above-mentioned connectionless service message is modified, and next jumps whether network element is described second network element, if called address is not modified and next jumping network element is second network element, carry out S103, otherwise, S104 carried out;
S103, above-mentioned first network element are determined to have produced the SCCP loop between above-mentioned first network element and above-mentioned second network element;
S104, above-mentioned first network element are jumped network element with above-mentioned connectionless service forwards to next according to route results.
Wherein, first network element carries out the GT translation to connectionless service message after receiving above-mentioned connectionless service message, if after the GT translation, called address is modified, and then can not produce the SCCP loop.For example, if first network element is determined next jumping network element and is the network element of the destination address sensing of this connectionless service message, then the indication of the route in the called address is revised as the SSN route, like this, after connectionless service message arrives next jumping, no longer carry out the GT translation, therefore can not produce the SCCP loop.Perhaps, if first network element has been revised the GT sign indicating number of called address in the GT translation process, then the GT translation result is the amended GT of DPC+, like this, even it is second network element that next of the route of determining jumped network element, after second network element receives this connectionless service message, because the GT sign indicating number in the called address is modified, therefore second network element carry out determining after the GT route next to jump network element no longer be first network element, therefore can not produce the SCCP loop.
Among the invention described above embodiment,, be a kind of method for quick owing to judge between two network elements, whether there is the SCCP loop by route results, higher than existing SCCP loop detection mode efficient.In addition, owing to judge whether to produce the SCCP loop based on the GT route results, can also be applicable to the SCCP loop detection of UDT message, and be applicable to all types of connectionless service message, than the prior art that detects the SCCP loop based on hop counter, the scope of application is wider.
The method that the invention described above embodiment provides after determining to have produced the SCCP loop between above-mentioned first network element and above-mentioned second network element, can also comprise:
S105, above-mentioned first network element are configured to return the connectionless service message of fault message, and this connectionless service message that is used for returning fault message is carried and found the SCCP loop information;
Wherein, be used to return fault message connectionless service message can but be not limited only to comprise: if the connectionless service message that second network element is sent is UDT message, the connectionless service message that then is used to return fault message is UDTS message; Perhaps, if the connectionless service message that second network element is sent is XUDT message, the connectionless service message that then is used to return fault message is XUDTS message; Perhaps, if the connectionless service message that second network element is sent is LUDT message, the connectionless service message that then is used to return fault message is LUDTS message etc.
S106, above-mentioned first network element send to above-mentioned second network element with the connectionless service message that this is used to return fault message.
By aforesaid operations, make second network element be informed between itself and first network element and produced the SCCP loop, and then can take further step, for example, report and alarm message etc.
In the embodiment of the invention, above-mentioned S102 specific implementation is as follows:
If the result of GT translation is the GT in DPC (DPC)+former called address of above-mentioned connectionless service message, determine that then this connectionless service message is not modified; If this DPC is the SPC (Signaling Point Code, signaling point code) of above-mentioned second network element, determine that then next jumping network element of route is this second network element;
If first network element is revised called address in the GT translation process, this first network element mark of can making amendment, then when judging, this first network element knows according to revising mark whether self revises called address.
The embodiment of the invention also provides the detection method of another kind of SCCP loop, and its implementation is as follows:
Network element is before networking or after finishing data schema, and carries out carrying out the SCCP loop detection based on hop counter before the transfer of data.
In this implementation, will realize that the operation of SCCP loop detection carries out in advance before Business Processing based on hop counter, in carrying out, business carries out the SCCP loop detection compared to prior art, the influence of having avoided the time-delay of SCCP loop detection that business is caused.
To be described in detail the specific implementation of the embodiment of the invention in actual application below.
Second embodiment
In second embodiment of the invention, first network element and second network element all are No.7 signaling elements, and the SPC of first network element is that the SPC of 11, the second network elements is 22.Then, the processing procedure of second embodiment of the invention as shown in Figure 2, specific implementation is as follows:
S201, first network element receive the UDT message from second network element, and the routing mode of described UDT message is the GT route;
S202, above-mentioned first network element carry out the GT translation to above-mentioned UDT message, and in second embodiment of the invention, the result of GT translation is the GT in the former called address of 22+;
S203, above-mentioned first network element are determined the SCCP loop to have occurred between first network element and second network element;
In the GT routing procedure, if network element is determined next jumping network element and is the network element of the destination address sensing of connectionless service message that then in the GT translation process, the route indication is set to SSN (Sub-System Number, Sub-system Number) route, and the result of GT translation is: DPC; If it is exactly the network element of the destination address sensing of connectionless service message that network element can't be determined next jumping network element, then the result of GT translation is: the GT in the former called address of DPC+, in this case, do not make amendment to called address.If the result that first network element carries out GT translation to above-mentioned connectionless service message is the GT in the former called address of 22+, represent that then the called address in the connectionless service message is not modified, and next jumping network element that this nothing connects called address is second network element, second network element is after receiving this connectionless service message, carry out the GT translation according to former called address, next of the route of determining jumped network element and remained first network element, therefore produces the SCCP loop.
S204, above-mentioned first network element abandon above-mentioned UDT message, shake between first network element and second network element to avoid this UDT message;
S205, above-mentioned first network element are constructed UDTS message, and this UDTS message is sent to above-mentioned second network element;
The calling address of this UDTS message is the called address in the above-mentioned UDT message, the called address of this UDTS message is the calling address of above-mentioned UDT message, the content of returning cause field in this UDTS message for " detecting the loop of SCCP layer " (wherein, returning cause field can also be the description that the SCCP loop appears in other expressions), other field contents are with above-mentioned UDT message in this UDTS message;
S206, above-mentioned first network element send alarm to operation maintenance center, so that data configuration is revised by operation maintenance center, thoroughly eliminate the SCCP loop.Wherein, operation maintenance center revise data configuration implementation can but be not limited only to: realize by operating personnel's manual operation.
Among the invention described above second embodiment, owing to judge whether to produce the SCCP loop based on the GT route results, go for the SCCP loop detection of UDT message, than the prior art that detects the SCCP loop based on hop counter, the scope of application is wider.
The 3rd embodiment
In third embodiment of the invention, first network element and second network element all are No.7 signaling elements, and the SPC of first network element is that the SPC of 11, the second network elements is 22.Then, the processing procedure of third embodiment of the invention as shown in Figure 3, specific implementation is as follows:
S301, first network element receive the XUDT message from second network element, and the routing mode of described XUDT message is the GT route;
S302, above-mentioned first network element determine that second network element is the called address of above-mentioned XUDT message, then the indication of the route of called address in this XUDT message are revised as the SSN route, and are 22 to the result that above-mentioned XUDT message is carried out the GT translation;
S303, above-mentioned first network element are determined not produce the SCCP loop between first network element and second network element;
Because XUDT message is no longer carried out the GT translation after arriving second network element, therefore can not produce the SCCP loop, therefore the route indication of first network element in determining XUDT message changes, and after the result of GT translation is 22, can determine not produce the SCCP loop between first network element and second network element.
S304, above-mentioned first network element send to second network element with the above-mentioned XUDT message of having revised route indication in the called address.
In the third embodiment of the invention, if among the S302, first network element can't be determined the called address of XUDT message, and the result of GT translation is the GT of the former called address of 22+, then among the S303, first network element is determined to have produced the SCCP loop between first network element and second network element, and processing procedure thereafter can be with reference to the step S204 among second embodiment～S206.
Among the invention described above embodiment, owing to judge whether there is the SCCP loop between two network elements by route results, detecting the SCCP loop based on hop counter in compared to prior art, be a kind of method for quick, and detection efficiency is higher.
The 4th embodiment
In fourth embodiment of the invention, first network element and second network element all are No.7 signaling elements, and the SPC of first network element is that the SPC of 11, the second network elements is 22.Then, the processing procedure of fourth embodiment of the invention as shown in Figure 4, specific implementation is as follows:
S401, first network element receive the LUDT message from second network element, and the routing mode of described LUDT message is the GT route;
S402, above-mentioned first network element carry out the GT translation to above-mentioned LUDT message, and the result of GT translation is the new GT of 22+, then GT in the called address is replaced with this new GT, new GT be meant with former called address in the different GT of GT;
S403, above-mentioned first network element are determined the SCCP loop not occur between first network element and second network element;
Because after first network element carries out the GT translation, the called address of LUDT message is changed, after this LUDT message sends back to second network element, second network element no longer is first network element according to next jumping network element that new called address carries out the GT translation, therefore can not produce the SCCP loop between first network element and second network element.
S404, above-mentioned first network element send to second network element with above-mentioned LUDT message.
In the fourth embodiment of the invention, if among the S402, first network element carries out the GT of the result of GT translation for the former called address of 22+, then among the S403, first network element is determined to have produced the SCCP loop between first network element and second network element, and processing procedure thereafter can be with reference to the step S204 among second embodiment～S206.
Among the invention described above embodiment, owing to judge whether there is the SCCP loop between two network elements by route results, detecting the SCCP loop based on hop counter in compared to prior art, be a kind of method for quick, and detection efficiency is higher.
The 5th embodiment
In fifth embodiment of the invention, the network element of supporting the No.7 signaling is before networking or finish data schema (data schema comprises: the data of configuration and the butt joint of other network elements), and carry out carrying out the SCCP loop detection based on hop counter before the transfer of data.Its specific implementation comprises following operation as shown in Figure 5:
S501, network element A construct test post;
Wherein, this test post be the XUDT message of special no segmentation, called address in the message is to be the GT of this test post structure, and calling address is the GT of network element A, and the XUDT message of this special no segmentation specifically can be used the SSN of reservation or fill the particular message content and construct.
S502, network element A carry out the GT translation to the address in this test post, according to the GT translation result this test post are sent to next and jump network element (network element B);
S503, network element B carry out the GT translation after receiving above-mentioned test post, and the hop counter in this test post is subtracted 1, according to the GT translation result above-mentioned test post are sent to next and jump network element;
By that analogy, when hop counter was kept to " 0 ", then the SCCP loop had appearred in the judgement of the network element at this current place of test post, carries out S504, abandons this test post, is configured to return the connectionless service information and sending of fault message;
S505, network element A receive above-mentioned be used to return the connectionless service message of fault message after, send alarm to operation maintenance center revise so that operation maintenance center is configured into row to data, thoroughly eliminate the SCCP loop.
The all or part of step of realization said method embodiment can be finished by the relevant hardware of program command, and aforesaid program can be stored in the computer read/write memory medium, and this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The embodiment of the invention also provides a kind of detection processing unit of SCCP loop, its structure as shown in Figure 6, the specific implementation structure comprises:
Route processing module 601, the connectionless service message that is used for that second network element is sent are carried out the GT route and are handled;
Wherein, connectionless service message can comprise: UDT message, or XUDT message, or LUDT message etc.
Loop detection module 602 is used for the route results according to route processing module 601, judges whether the called address of above-mentioned connectionless service message is modified, and whether next jumping network element of route is above-mentioned second network element; If called address is not modified and next jumping network element of route is second network element, then determine between local network element and above-mentioned second network element, to have produced the SCCP loop.
The device that the embodiment of the invention provides specifically can be arranged in first network element, also can be first network element.
The device that the invention described above embodiment provides, owing to judge between two network elements, whether there is the SCCP loop by route results, it is a kind of method for quick, higher than existing SCCP loop detection mode efficient, and can also be applicable to the SCCP loop detection of UDT message, the scope of application is wider.
The device that the invention described above embodiment provides also comprises: signalling trouble module 603, be used to be configured to return the connectionless service message of fault message, and this connectionless service message that is used for returning fault message is carried and is found the SCCP loop information; And this connectionless service message that is used to return fault message sent to described second network element.
By aforesaid operations, make second network element be informed between itself and first network element and produced the SCCP loop, and then can take further step.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (6)
1. the detection processing method of a SCCP SCCP loop is characterized in that, comprising:
The connectionless service message that first network element is sent second network element is carried out global title GT route and is handled;
Described first network element judges according to route results whether the called address in the described connectionless service message is modified, and whether next jumping network element of route is described second network element;
If described called address is not modified, and next of route to jump network element be described second network element, then determine between described first network element and described second network element, to have produced the SCCP loop.
2. method according to claim 1 is characterized in that, after determining to have produced the SCCP loop between described first network element and described second network element, this method also comprises:
Described first network element is configured to return the connectionless service message of fault message, and the described connectionless service message that is used for returning fault message is carried and detected the SCCP loop information;
Described first network element sends to described second network element with the described connectionless service message that is used to return fault message.
3. method according to claim 1 and 2 is characterized in that, described first network element judges according to route results whether the called address in the described connectionless service message is modified, and whether next jumping network element of route is that described second network element comprises:
If the result of GT translation is the GT in the former called address of DPC DPC+, determine that then described connectionless service message is not modified; If described DPC is the signaling point code of described second network element, determine that then next jumping network element of route is described second network element.
4. method according to claim 1 and 2 is characterized in that, the connectionless service message that described second network element is sent is: unit data UDT message, enhancing unit data XUDT message, or long unit data LUDT message.
5. the detection processing unit of a SCCP SCCP loop is characterized in that, comprising:
Route processing module, the connectionless service message that is used for that second network element is sent are carried out global title GT route and are handled;
The loop detection module is used for the route results according to described route processing module, judges whether the called address in the described connectionless service message is modified, and whether next jumping network element of route is described second network element; If described called address is not modified and next jumping network element of described route is described second network element, then determine between local network element and described second network element, to have produced the SCCP loop.
6. device according to claim 5 is characterized in that, described device also comprises:
The signalling trouble module is used to be configured to return the connectionless service message of fault message, and the described connectionless service message that is used for returning fault message is carried and found the SCCP loop information; And the described connectionless service message that is used to return fault message sent to described second network element.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100468592A CN102164055A (en) | 2011-02-23 | 2011-02-23 | Detection processing method and device for signaling connection control part (SCCP) loop |
| PCT/CN2011/084217 WO2012113257A1 (en) | 2011-02-23 | 2011-12-21 | A method and equipment for sccp loop detection processing |
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| CN2011100468592A CN102164055A (en) | 2011-02-23 | 2011-02-23 | Detection processing method and device for signaling connection control part (SCCP) loop |
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| WO2012113257A1 (en) * | 2011-02-23 | 2012-08-30 | 华为技术有限公司 | A method and equipment for sccp loop detection processing |
| CN102883281A (en) * | 2012-01-30 | 2013-01-16 | 华为技术有限公司 | Method, equipment and system for sending message |
| WO2016078240A1 (en) * | 2014-11-19 | 2016-05-26 | 中兴通讯股份有限公司 | Method and device for detecting routing ring formation |
| WO2023011630A1 (en) * | 2021-08-06 | 2023-02-09 | 华为技术有限公司 | Authorization verification method and apparatus |
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| WO2012113257A1 (en) * | 2011-02-23 | 2012-08-30 | 华为技术有限公司 | A method and equipment for sccp loop detection processing |
| CN102883281A (en) * | 2012-01-30 | 2013-01-16 | 华为技术有限公司 | Method, equipment and system for sending message |
| CN102883281B (en) * | 2012-01-30 | 2015-09-09 | 华为技术有限公司 | A kind of method, equipment and system sending message |
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| WO2023011630A1 (en) * | 2021-08-06 | 2023-02-09 | 华为技术有限公司 | Authorization verification method and apparatus |
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| WO2012113257A1 (en) | 2012-08-30 |
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Application publication date: 20110824 |