CN1585352A - SS7 monitoring system and method - Google Patents
SS7 monitoring system and method Download PDFInfo
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- CN1585352A CN1585352A CN 03155211 CN03155211A CN1585352A CN 1585352 A CN1585352 A CN 1585352A CN 03155211 CN03155211 CN 03155211 CN 03155211 A CN03155211 A CN 03155211A CN 1585352 A CN1585352 A CN 1585352A
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Abstract
The method includes following steps: the signaling messages are collected in the link layer in signaling network, are copied and are transmitted to the signaling monitoring system to process; the monitoring system comprises signaling collection device and signaling monitoring system, the above signaling collection device is linked in link layer in signaling network and is connected with signaling monitoring system. The invention can collect signaling message in link layer and promotes accuracy and practicability of No. seven signaling monitoring system.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of monitoring system and method for Signaling System Number 7.
Background technology
No.7 signalling system (SS7) is a kind of mode of widely used transmitting control information in the telecommunications network, is the supporting network of Modern Telecommunication, Signaling System Number 7 net loaded nearly all information of communication network operation, be very valuable information resources.By the signaling message that carries in the monitoring Signaling System Number 7 net, can obtain the operation information of network accurately and efficiently, for the services quality monitoring and the analysis of the administering and maintaining of signaling network, business network provides strong support.
In order to monitor the signaling message that carries in the Signaling System Number 7 net, accurately gathering Signaling System Number 7 message from the Signaling System Number 7 net is one of its key technology.
In the Signaling System Number 7 net, Signaling System Number 7 generally transmits in E1/T1/STM-1, and E1 meets G.703 a kind of PCM (pulse code modulation) coding load mode of standard, and transmission rate is 2M, T1 meets G.703 a kind of pcm encoder load mode of standard, and transmission rate is 1.544M; STM-1 is a Synchronous Transfer Mode 1, is a kind of transmission means of higher rate.The method of traditional collection Signaling System Number 7 message is: by switch convergence or high-ohmic cross-connection technology, the signaling data that transmits among the E1/T1 is duplicated portion be linked into signaling monitoring system; Or, the signaling copy portion that transmits among the STM-1 is linked into signaling monitoring system by optical splitter.
As shown in Figure 1, existing Signaling System Number 7 message collection adopts following several modes:
The inner convergence termination of mode 1:STP switch access way, a kind of specific function of promptly utilizing SPC digital switch to provide, physically with the signal replication in TDM (time division multiplexing) time slot of carrier signaling message in another one E11 or T1 system, then this E1 or T1 system are linked into the signal collecting part.
Among Fig. 1 on the Signaling Transfer Point between signalling point SP1 and the SP2, by switch convergence carrying out signal collecting, time slot by switch inside duplicates and cross connect function, the time slot of command transmitting link is copied among an E1 or the T1, and with this E1 or T1 access signaling monitoring system.
Mode 2: the high-ohmic cross-connection mode, promptly obtain signal from the physical channel of carrying Signaling System Number 7 by high-ohmic cross-connection, be linked into the signal collecting part.Require input impedance greater than 2K, do not influence the link of monitoring.
Go up acquired signal and be linked into signaling monitoring system from probe being connected across E1 between signalling point SP1 and the SP2 or T1 by high-barrier among Fig. 1, because the high resistant probe only takes out a spot of signal from the E1 of command transmitting or T1, so do not influence the transmission of signaling.
Mode 3: optical splitter access way, when physical transfer adopts optical fiber, method that can't be by high-ohmic cross-connection is obtained signal from the passage of command transmitting, and optical splitter can be from optical fiber be told a part the light signal of beared information and is linked into the signal collecting part, and does not influence the transmission of signal.
Optical splitter is told the light signal that transmits on the optical fiber between signalling point SP1 and the signalling point SP3 less than 10% signal and is linked into signaling monitoring system among Fig. 1, does not influence the transmission of signal in the optical fiber.
Existing signal collecting mode in fact all is in the physical layer acquired signal, be linked into signaling monitoring system from the signal of physical layer collection after, go out the Signaling System Number 7 message of transmitting above by the signal collecting partial decoding of h of signaling monitoring system.Because physical signalling can produce distortion from the collection point to the signaling monitoring system transmission course inevitably, error code takes place, or lose synchronously, thereby can make signaling monitoring system to gather less than complete Signaling System Number 7 message owing to wrong, always there be losing of signaling, thereby cause the signaling information of the signaling information that obtains and monitoring inconsistent.And, finish in physical layer owing to gather, the mistake that error correction system takes place between correcting from the collection point to the signaling monitoring system can not be set between signaling monitoring system and the collection point.
Existing signal collecting mode is a kind of " parallel connection " acquisition mode fundamentally, acquired signal from the physical channel of command transmitting information, from the signal of gathering, obtain signaling information then, the signaling message that reception that can only be passive is gathered is found can't recover correct signaling message after the mistake.
Summary of the invention
Technical problem to be solved by this invention is: overcome existing Signaling System Number 7 acquisition method and take place easily that signaling is lost or mistake, signaling information that obtains and the inconsistent deficiency of the signaling information of monitoring, a kind of Signaling System Number 7 acquisition method and system are provided, thereby improve the accuracy that Signaling System Number 7 is gathered.
The monitoring method of Signaling System Number 7 of the present invention is: gather signaling message in the link layer of signaling network, duplicate and send to signaling monitoring system and handle.
The above-mentioned described signaling message that collects is sent to signaling monitoring system by packet network.
Before the above-mentioned signaling message that collects sends to signaling monitoring system, in this signaling message, stamp timestamp at that time.
Can between two signalling points of signaling link or Signalling Transfer Point, gather signaling message, also can directly gather signaling message at signalling point or Signalling Transfer Point.When between two signalling points of signaling link or Signalling Transfer Point, gathering signaling message, carry out the transparent transmission of signaling message by network interworking function (NIF); Directly when signalling point or signaling tie point collection signaling message, transmit signaling message by ICP/IP protocol.
The monitoring system of Signaling System Number 7 of the present invention comprises signaling acquisition device and signaling monitoring system, it is characterized in that: described signaling acquisition device is connected in the link layer of signaling network, links to each other with signaling monitoring system; Described signaling acquisition device duplicates and sends to signaling monitoring system to the signaling message that collects, and is handled by signaling monitoring system.
Described signaling acquisition device links to each other by packet network with signaling monitoring system, and described packet network can be an IP network.
Described signaling acquisition device can be serially connected between the signalling point or signaling at signaling link two ends, also can directly be connected with signalling point or Signalling Transfer Point.
When described signaling acquisition device was serially connected between the signalling point at signaling link two ends or the signaling, the network interworking function (NIF) by signaling acquisition device between described signaling acquisition device and the signaling monitoring system carried out the transmission of signaling message;
When described signaling acquisition device directly is connected with signalling point or Signalling Transfer Point, in signalling point or Signalling Transfer Point, set up interface with the signaling monitoring system data processing section, in signalling point or Signalling Transfer Point, the link layer signaling message is duplicated, and, signaling is delivered to signaling monitoring system handles by described interface.
Beneficial effect of the present invention is: the present invention is by the serial connection mode, gather signaling message at link layer, rather than gather signaling in physical layer, the message of link layer is by signaling monitoring system, thereby guaranteed that the message that transmits in the message of monitoring and the signaling network is duplicate.Transmit data by reliable host-host protocol between collecting device and the signalling processing equipment, thereby guaranteed the accuracy that message is transmitted.Also can directly in signalling point or Signalling Transfer Point, carry out duplicating of link layer signaling message, signaling is gathered, can gather the signaling that sends or receive from this signalling point like this, by interface the message that collects is delivered to signalling processing equipment and handle with signalling processing equipment.Transmit data by reliable host-host protocol between signalling point or Signalling Transfer Point and the signalling processing equipment, thereby guaranteed the accuracy that message is transmitted.
Utilize the present invention accurately to gather signaling message, improved the accuracy of Signaling System Number 7 monitoring system, also improved the practicality of Signaling System Number 7 monitoring system.
Description of drawings
Fig. 1 is existing Signaling System Number 7 acquisition method principle schematic;
Fig. 2 is a Signaling System Number 7 acquisition method principle schematic one of the present invention;
Fig. 3 is a Signaling System Number 7 acquisition method principle schematic two of the present invention.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
Gather signaling message for distortionless from the Signaling System Number 7 net, guarantee the accuracy of the signaling message collect from the source, the present invention is realized the collection of signaling message by connect a signaling acquisition device that is operated in the Signaling System Number 7 monitoring system of MTP L2 (the Message Transfer Part second layer) in monitored signaling link by this device.
As shown in Figure 2, signaling acquisition device is connected among the signalling point A and the link between the signalling point B to be monitored signaling information on the signaling link S between signaling acquisition device collection signalling point A and the signalling point B.
Because MTP L2 has stipulated signaling data link and has uploaded the function and the corresponding program of delivering letters and making message, comprised following function:
1) signaling unit is delimited
2) signaling unit location
3) error detection occurs
4) error correction
5) initial alignment
6) signaling link error monitoring
7) processor stall control
8) flow control
Signaling acquisition device can be realized complete MTP L2 function, in link, set up reliably and connect, signaling acquisition device is set up MTP L2 link with the signalling point A and the signalling point B at two ends respectively, set up MTP L2 layer link in a point one side and signalling point A, set up MTP L2 layer link in b point one side and signalling point B.NIF in the equipment (network interworking function) finishes the transparent transmission of both sides MTPL2 message, in signalling point A and the imperceptible existence that is serially connected in the signaling acquisition device on the link of signalling point B.The MSU (Message Signal Unit) that receives in a side sends from the b side, duplicates MSU simultaneously, stamps timestamp at that time, gives the data processing division divisional processing of Signaling System Number 7 monitoring system by IP network or other packet network; Equally, the MSU that receives in the c side sends from the d side, duplicates MSU simultaneously, stamps the data processing section that at that time timestamp is delivered to signaling monitoring system.
Signaling acquisition device also can only realize above-mentioned 1), 2) function on the aspect, the signaling unit SU (comprising Message Signal Unit MSU, LSSU Link Status Signal Unit LSSU, Fill-In Signal Unit FISU) that receives directly is forwarded to the opposite end.The MTP L2 Frame that signaling acquisition device is received a end among Fig. 2 copies to the b end, after a point receives SU, on the one hand SU is sent from the b point, to duplicate this SU on the one hand, stamp timestamp at that time, give the data processing division divisional processing of Signaling System Number 7 monitoring system by IP network or other packet network.Equally, c holds the MTP L2 frame of receiving to copy to the d end.Owing to be not to carry out data in physical layer to duplicate, but the Frame that carries out at link layer duplicates, so guaranteed the accuracy of data.
As shown in Figure 3, the present invention also can directly realize the signal collecting function in signalling point or Signalling Transfer Point, the signaling message that transmits on to signaling link in signalling point A or signalling point B duplicates, be increased to the interface of signaling monitoring system in the signalling point, this interface adopts ICP/IP protocol, in the signalling point link layer signaling message is duplicated, and signaling message is delivered to the data processing section of signaling monitoring system by IP network or other packet network by this interface.Also need to increase the time synchronized function at signalling point or Signalling Transfer Point, signalling point or signal switching are named a person for a particular job and are received or send after signaling message stamps at that time timestamp, and the interface that passes through to signaling monitoring system sends to signaling monitoring system.
The data processing section of signaling acquisition device and Signaling System Number 7 monitoring system transmits message by reliable communications protocol, and communications protocol is based upon on the IP agreement reliably, and as transmission control protocol (TCP), thereby assurance message is not lost.
The present invention is by gathering signaling message and duplicate at link layer, thereby guaranteed that the message that transmits in the message of monitoring and the signaling network is duplicate.Transmit data by reliable host-host protocol between collecting device and the signalling processing equipment, thereby guaranteed the accuracy that message is transmitted.Utilize the present invention, signaling message can accurately be gathered, and has improved the accuracy of Signaling System Number 7 monitoring system, has also improved the practicality of Signaling System Number 7 monitoring system.Can obtain the operation information of network more accurately and efficiently, for the services quality monitoring and the analysis of the administering and maintaining of signaling network, business network provides stronger support.
Claims (10)
1, a kind of monitoring method of Signaling System Number 7 is characterized in that: gather signaling message in the link layer of signaling network, duplicate and send to signaling monitoring system and handle.
2, the monitoring method of Signaling System Number 7 according to claim 1 is characterized in that: the described signaling message that collects is sent to signaling monitoring system by packet network.
3, the monitoring method of Signaling System Number 7 according to claim 1 is characterized in that: before described signaling message is sent to signaling monitoring system, stamp timestamp at that time in this signaling message.
4, according to the monitoring method of claim 1,2,3 described Signaling System Number 7s, it is characterized in that: between two signalling points of signaling link or Signalling Transfer Point, gather signaling message, perhaps directly gather signaling message at signalling point or Signalling Transfer Point.
5, the monitoring method of Signaling System Number 7 according to claim 4 is characterized in that: when gathering signaling message between two signalling points of signaling link or Signalling Transfer Point, carry out the transparent transmission of signaling message by network interworking function (NIF); Directly when signalling point or signaling tie point collection signaling message, transmit signaling message by ICP/IP protocol.
6, a kind of Signaling System Number 7 monitoring system comprises signaling acquisition device and signaling monitoring system, it is characterized in that: described signaling acquisition device is connected in the link layer of signaling network, links to each other with signaling monitoring system; Described signaling acquisition device duplicates and sends to signaling monitoring system to the signaling message that collects, and is handled by signaling monitoring system.
7, Signaling System Number 7 monitoring system according to claim 6, it is characterized in that: described signaling acquisition device links to each other by packet network with signaling monitoring system.
8, Signaling System Number 7 monitoring system according to claim 7 is characterized in that: described packet network is an IP network.
9, according to claim 6,7,8 described Signaling System Number 7 monitoring systems, it is characterized in that: described signaling acquisition device is serially connected between the signalling point or signaling at signaling link two ends, perhaps directly is connected with signalling point or Signalling Transfer Point.
10, Signaling System Number 7 monitoring system according to claim 9 is characterized in that:
When described signaling acquisition device is serially connected between the signalling point at signaling link two ends or the signaling, carry out the transparent transmission of signaling message between described signaling acquisition device and the signaling monitoring system by the network interworking function (NIF) of signaling acquisition device;
When described signaling acquisition device directly is connected with signalling point or Signalling Transfer Point, in signalling point or Signalling Transfer Point, set up interface with the signaling monitoring system data processing section, in signalling point or Signalling Transfer Point, the link layer signaling message is duplicated, and, signaling is delivered to signaling monitoring system handles by described interface.
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| CN03155211A CN100589419C (en) | 2003-08-19 | 2003-08-19 | Signaling7 monitoring system and method |
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|---|---|---|---|
| CN03155211A CN100589419C (en) | 2003-08-19 | 2003-08-19 | Signaling7 monitoring system and method |
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| CN100589419C CN100589419C (en) | 2010-02-10 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100444561C (en) * | 2005-08-29 | 2008-12-17 | 中兴通讯股份有限公司 | Signal collecting module with exchanging convergence function |
| CN101232635B (en) * | 2007-01-25 | 2011-03-09 | 上海粱江通信***股份有限公司 | System for purifying short messages based on signaling process technique |
| CN101146148B (en) * | 2007-07-03 | 2011-04-20 | 中兴通讯股份有限公司 | A monitoring system and method for non-standardized inter-network call |
| CN103152223A (en) * | 2013-03-15 | 2013-06-12 | 华为技术有限公司 | Network performance monitoring method and device |
| CN101754245B (en) * | 2009-12-22 | 2013-08-07 | 重庆重邮东电通信技术有限公司 | Time division-synchronization code division multiple access (TD-SCDMA) network centralized monitoring system |
| CN103259693A (en) * | 2013-04-07 | 2013-08-21 | 吴建进 | Method and system for link automatic scanning |
-
2003
- 2003-08-19 CN CN03155211A patent/CN100589419C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100444561C (en) * | 2005-08-29 | 2008-12-17 | 中兴通讯股份有限公司 | Signal collecting module with exchanging convergence function |
| CN101232635B (en) * | 2007-01-25 | 2011-03-09 | 上海粱江通信***股份有限公司 | System for purifying short messages based on signaling process technique |
| CN101146148B (en) * | 2007-07-03 | 2011-04-20 | 中兴通讯股份有限公司 | A monitoring system and method for non-standardized inter-network call |
| CN101754245B (en) * | 2009-12-22 | 2013-08-07 | 重庆重邮东电通信技术有限公司 | Time division-synchronization code division multiple access (TD-SCDMA) network centralized monitoring system |
| CN103152223A (en) * | 2013-03-15 | 2013-06-12 | 华为技术有限公司 | Network performance monitoring method and device |
| WO2014139461A1 (en) * | 2013-03-15 | 2014-09-18 | 华为技术有限公司 | Method and device for monitoring network performance |
| CN103152223B (en) * | 2013-03-15 | 2016-08-03 | 华为技术有限公司 | network performance monitoring method and device |
| US9954753B2 (en) | 2013-03-15 | 2018-04-24 | Huawei Technologies Co., Ltd. | Network performance monitoring method and apparatus |
| CN103259693A (en) * | 2013-04-07 | 2013-08-21 | 吴建进 | Method and system for link automatic scanning |
| CN103259693B (en) * | 2013-04-07 | 2016-01-27 | 吴建进 | A kind of method and system of link automatic scan |
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|---|---|
| CN100589419C (en) | 2010-02-10 |
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