CN1400777A - Method for making transmission of large capacity signalling message between network equipments and its equipment - Google Patents
Method for making transmission of large capacity signalling message between network equipments and its equipment Download PDFInfo
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Abstract
This invention provides a method and its equipment of transmitting large volume signaling information among network equipments. The transmitting method is to add a STM sub layer on the SCTP protocol based on IE TF SCTR transmission protocol so as to set up more than one SCRT connection among network equipments and realize the managing function of load share and backup switching via STM. THE said network equipment is a distributed multi-host system structure and a more than one signaling process unit realizes the signaling transmission function below SCTP on the network equipment. Every signaling process unit is an independent host system and other host system realize STM and high layer protocol function. This method and its equipments to avoid one-point fault of signaling process unit on network equipments.
Description
Technical field
The present invention relates to telecommunications and internet arena, especially the method and the equipment thereof that relate to making transmission of large capacity signalling message between the network equipment, these signaling messages comprise the No.7 signaling of International Telecommunication Union, and call-independent control protocol bearing (BICC) etc. may apply to the network equipment control signaling protocol on the IP network.
Background technology
Signaling system is the key technology of modern communication networks, and telecommunication apparatus is the key that guarantees high capable telecommunications network to the reliable transmission of signaling message.In conventional telecommunication network, there have been a series of standards and technology to guarantee the reliability of signaling system, as very ripe arrowband No.7 signaling system at present.Progressively maturation along with the IP packet network technologies, the IP packet network can be used for business such as voice-bearer, data, multimedia, traditional circuit-switched network and packet network are in fusing stage, not only in traditional narrow band circuit switching network, provide telephone service, intelligent network business, and these business need be provided in IP network.For realizing the intercommunication of legacy circuit-switched networks network and IP packet network, the demand that circuit switching signaling protocol such as transmission No.7 signaling occurred on IP network, for this reason, internet engineering working group (IETF) has set up a special signaling transmission group, and signaling transmission (SIGTRAN) protocol suite that they formulated will be used for the transmission of legacy circuit-switched signaling protocol on IP network.As shown in Figure 1, in the signaling transmission standard of IETF, signaling transfer protocol stack (SIG) is made up of following three parts: the IP host-host protocol of (1) standard; (2) Simple Control Transmission Protocol (SCTP) is a general signaling transfer protocol that is used for IP network, and it has guaranteed reliable, the order-preserving transmission of signaling message; (3) the adaptive sublayer of signaling is that the specific high-rise arrowband signaling of being carried is carried out adaptive level, and it upwards provides the special interface of original arrowband signaling to make high-rise arrowband signaling to remain unchanged and has been transmitted in pellucidly on the signaling transfer protocol stack.
Along with the professional application of voice, multimedia etc. on the IP network, also need be on IP network between each network equipment control channel mutually, as BICC, SIP, agreement etc. H.248.Because SCTP designs at the signaling transmission demand, have the characteristic that much is suitable for control channel, therefore can use SCTP and transmit these and be applied to novel control signaling on the IP network.
Existing signaling transfer protocol stack has provided the protocol stack structure of command transmitting between two main frames, guarantees the reliable transmission of signaling between two main frames.But only there is the system configuration of a main frame can't satisfy reliability requirement on the telecommunication apparatus, after breaking down, this unique main frame will cause the signaling interruptions in transmissions, and in jumbo communication network, control signaling traffic between two network equipments may be bigger, and individual host can't satisfy the signaling process requirement of high bandwidth.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, on the basis of using Stream Control Transmission Protocol, propose a kind of between the network equipment method and the equipment thereof of making transmission of large capacity signalling message, this method and equipment thereof can network enabled equipment between big capacity signaling message reliable transmission and can avoid Signaling Processing Unit Single Point of Faliure on the network equipment.
The object of the present invention is achieved like this, a kind of method of between the network equipment, carrying out big capacity signaling transmission, described transmission method is the SCTP host-host protocol based on IETF, on described Stream Control Transmission Protocol, increase a signaling transfer management (STM) sublayer, in order to the management that realizes bottom SCTP signaling is connected, described STM supports many SCTP between a pair of signaling entity to connect, and is the high-level signaling message that will transmit on the described STM; Described signal transmission method may further comprise the steps:
(1) described STM sends out control command according to the configuration information on the network equipment, and the SCTP that sets up between the network equipment more than connects;
(2) described STM shares indication information and will transmit sharing of load and transmit to connecting more than one SCTP according to what the load sharing information in the signaling message that is transmitted or upper-layer protocol provided;
(3) described STM monitors the state that each SCTP connects, and is connected with fault if find certain bar SCTP, and then the business of out of order SCTP connection being born according to the configuration information on the network equipment switches in its backup SCTP connection and transmits.
The present invention also provides the network equipment that can realize the inventive method, and the described network equipment is a distributed multi-master machine system configuration; On the described network equipment, by the signaling transfer function of realizing more than one Signaling Processing Unit below the SCTP, each Signaling Processing Unit is the separate host system, realizes STM and upper-layer protocol function by other host computer systems beyond the Signaling Processing Unit.
Implement method and the equipment thereof that between the network equipment, carries out big capacity signaling transmission of the present invention, introducing many SCTP signalings between a pair of signaling end point connects, be convenient to introduce on the network equipment a plurality of independent Signaling Processing Units, can conveniently support jumbo signaling traffic, simultaneously a plurality of independent Signaling Processing Units can back up mutually and increase the reliability of signaling process on the network equipment, have avoided signaling to be transmitted in Single Point of Faliure on the network equipment.
Description of drawings
Fig. 1 is the signaling transmission system protocol stack structure figure of prior art;
Fig. 2 is signaling transmission system protocol stack structure figure among the embodiment of the inventive method;
Fig. 3 be among the embodiment of the inventive method between the network equipment many SCTP connect and the connection management schematic diagram.
Embodiment
In one embodiment of the invention, the network equipment is a distributed multi-master machine system configuration.The network equipment is provided with a plurality of Signaling Processing Units and connects with a plurality of SCTP that are implemented between the network equipment, each Signaling Processing Unit is the separate host system, and described Signaling Processing Unit can be gateway (SG), Service Control Point, call server equipment such as (call server).
As shown in Figure 2, signaling message transmission is based on Stream Control Transmission Protocol between the network equipment, and increases a signaling transfer management sublayer on Stream Control Transmission Protocol, in order to the management that realizes bottom SCTP signaling is connected.Being the high-level signaling message that will transmit on the STM, can be IETF signaling transmission SCN signaling adaptation layer that group formulated such as M3UA etc., also can be to support the signaling transmission conversion layer (STC) of BICC or H.248 wait agreement.The STM protocol function also can be realized in signaling adaptation layer or STC, can avoid being provided with separately the management function that one deck STM finishes many SCTP signaling links like this, reduces the protocol hierarchy interface.STM and upper-layer protocol function are to be realized by other host computer systems beyond the Signaling Processing Unit.
The main SCTP signalling connection managing function of STM layer comprises: 1, according to the Redundancy concept between the SCTP connection of definition, after a certain SCTP connects interruption, the business in this connection is switched to backup connect.Can define many backups for a certain SCTP connection and connect, every backup connection defines a backup priority, selects backup link according to the backup priority orders during switching.2, according to the load sharing principle of definition, the business between a pair of signaling entity on connecting, many SCTP signalings is carried out load sharing.Can prolong the method for carrying out load sharing according to the SLS territory of using for the No.7 signaling, can share according to the information in high-rise certain territory of signaling message for other signaling.
STM supports the sublayer many SCTP between a pair of signaling entity to connect, and only have SCTP to connect to be a special case in the STM function between a pair of signaling entity, so the network equipment increases and does not hinder after the STM sublayer and do not have the network equipment of STM sublayer function to carry out the intercommunication of agreement.
Therefore, in an embodiment of the present invention, signal transmission method may further comprise the steps:
(1) described STM sends out control command according to the configuration information on the network equipment, and the SCTP that sets up between the network equipment more than connects;
(2) described STM shares indication information and will transmit sharing of load and transmit to connecting more than one SCTP according to what the load sharing information in the signaling message that is transmitted or upper-layer protocol provided;
(3) described STM monitors the state that each SCTP connects, and is connected with fault if find certain bar SCTP, and then the business of out of order SCTP connection being born according to the configuration information on the network equipment switches in its backup SCTP connection and transmits.
According to signal transmission method of the present invention, between these paths, carry out load sharing existing many signaling paths and signaling message between two signaling end points, easy like this causing needs the high-level signaling message of order-preserving transmission out-of-sequence situation to occur, cause high-level signaling can't utilize this transmission mechanism, but signaling protocol generally is the agreement of session-oriented fortunately, out-of-sequence situation does not appear as long as guarantee the signaling message of same session, by selecting suitable load sharing principle can guarantee that the control signaling of same session all transmits from the same paths between two signaling end points, the signaling message that guarantees same session out-of-sequence situation can not occur, can guarantee that the signaling message that belongs to a CIC can transmit from same signaling transmission path when the arrowband isup message is carried out load sharing according to the CIC value, guarantee the order-preserving transmission of signaling message.
Fig. 3 has provided and has co-existed in the schematic diagram that four SCTP connect and how these connections distribute between a pair of network equipment.Independently Signaling Processing Unit treatment S CTP signaling connection is set on the network equipment, many signalings connections are distributed on a plurality of independently Signaling Processing Units, concentrate by the STM layer these SCTP signalings connections are managed.Each Signaling Processing Unit on same network equipment is separate, is connected with No. 2 SCTP as only influence No. 1 after Signaling Processing Unit 1 fault, and being connected with No. 4 SCTP for No. 3 can be not influenced.The IP address of supposing the Signaling Processing Unit 1 of the network equipment 1 is that the IP address of IP1, Signaling Processing Unit 2 is IP2, and the external IP address of the same network equipment 2 is IP3, IP4.The STM floor is sent out control command according to the data of configuration and is required it and IP3 and IP4 to set up No. 1 for Signaling Processing Unit 1 to be connected with No. 2 SCTP on the network equipment 1, also sets up No. 3 with IP3 and IP4 with the same manner requirement Signaling Processing Unit 2 and is connected with No. 4 SCTP.Co-existing in No. 1 to No. 4 SCTP at STM signaling transfer management floor to the network equipment 2 like this connects.
Load sharing between the STM management level can connect according to many SCTP of definition carries out the management that many SCTP signalings are connected with Redundancy concept, load sharing can define according to the principles such as distribution that are connected with the principle of backup, provide an example below: the signaling traffic flow that is defined into the network equipment 2 in the network equipment 1 side carries out load sharing equably in 1 to No. 4 SCTP signaling connection, and the backup connection of No. 1 SCTP connection is respectively No. 2, No. 3, No. 4 SCTP from high to low according to backup priority and connects.Suppose that the high-rise signaling of being transmitted is an arrowband No.7 signaling, low two of the SLS during load sharing in the use signaling message are carried out load sharing.When STM sends data according to the SLS value of transmission signaling message, selecting No. 1 SCTP to connect when SLS=XX00 sends, in like manner SLS=XX01 selects No. 2, SLS=XX10 selects No. 3, SLS=XX11 selects No. 4, can be evenly distributed on the upper-layer protocol data that will transmit in 4 SCTP connections by this load sharing mode.
The switch function that the STM layer connects many SCTP is to connect because certain reason becomes can not use the time as the SCTP of a certain operate as normal, and STM selects an other SCTP to connect according to predefined connection backup priority to transmit the signaling traffic that unavailable SCTP connection is born.Detecting No. 1 SCTP as the STM floor connects after the fault, can preferentially select for use No. 2 SCTP to connect according to the backup connection priority of definition and replace No. 1 SCTP connection, bear the original business that No. 1 SCTP bore, also have fault to select for use other SCTP to connect according to the backup priority order of definition again if connect for No. 2.
Claims (8)
1, a kind of method of between the network equipment, carrying out big capacity signaling transmission, described transmission method is the Simple Control Transmission Protocol (SCTP) based on IETF, it is characterized in that, on described Simple Control Transmission Protocol (SCTP), increase a signaling transfer management (STM) sublayer, in order to the management that realizes bottom Simple Control Transmission Protocol (SCTP) signaling is connected, described signaling transfer management (STM) sublayer supports many Simple Control Transmission Protocols (SCTP) between a pair of signaling entity to connect, be the high-level signaling message that will transmit on the described signaling transfer management sublayer (STM), described signal transmission method may further comprise the steps:
(1) control command is sent out according to the configuration information on the network equipment in described signaling transfer management sublayer (STM), and the Simple Control Transmission Protocol of setting up between the network equipment more than (SCTP) connects;
(2) described signaling transfer management sublayer (STM) is shared indication information and will be transmitted sharing of load and transmit to connecting more than one Simple Control Transmission Protocol (SCTP) according to what the load sharing information in the signaling message that is transmitted or upper-layer protocol provided;
(3) monitor the state that each Simple Control Transmission Protocol (SCTP) connects described signaling transfer management sublayer (STM), be connected with fault if find certain bar Simple Control Transmission Protocol (SCTP), then out of order Simple Control Transmission Protocol (SCTP) connected Simple Control Transmission Protocol (SCTP) that the business born switches to its backup and connect and transmit according to the configuration information on the network equipment.
2, the method for signaling transmission according to claim 1 is characterized in that: in the described step (2), the signaling message of same session is assigned in same Simple Control Transmission Protocol (SCTP) connection and transmits in the described signaling message.
3. the method for signaling transmission according to claim 1 and 2 is characterized in that: in the described step (2), transmission load mean allocation is transmitted on described many Simple Control Transmission Protocols (SCTP) connect.
4, the method for signaling transmission according to claim 1 and 2 is characterized in that: in the described step (3), the switching that out of order Simple Control Transmission Protocol (SCTP) is connected is to carry out according to the backup priority orders that defines in the configuration information.
5, a kind of network equipment of realizing the described signal transmission method of claim 1 is characterized in that: the described network equipment is a distributed multi-master machine system configuration; On the described network equipment, by the signaling transfer function of realizing that more than one Signaling Processing Unit Simple Control Transmission Protocol (SCTP) is following, each Signaling Processing Unit is the separate host system, realizes signaling transfer management sublayer (STM) and upper-layer protocol function by other host computer systems beyond the Signaling Processing Unit.
6, a kind of network equipment of realizing signal transmission method according to claim 5 is characterized in that: described Signaling Processing Unit is gateway (SG).
7, a kind of network equipment of realizing signal transmission method according to claim 5, it is characterized in that: described Signaling Processing Unit is a Service Control Point.
8, a kind of network equipment of realizing signal transmission method according to claim 5 is characterized in that: described Signaling Processing Unit is call server (CALL SERVER).
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| CNB011245190A CN1145321C (en) | 2001-07-30 | 2001-07-30 | Method for making transmission of large capacity signalling message between network equipments and its equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388721C (en) * | 2003-03-18 | 2008-05-14 | 中兴通讯股份有限公司 | Method for protecting coupling based on flow control transfer protocol |
| CN100417156C (en) * | 2003-07-16 | 2008-09-03 | 中兴通讯股份有限公司 | A method and system for implementing data transmission in flow control transmission protocol |
| CN100417112C (en) * | 2005-01-25 | 2008-09-03 | 中兴通讯股份有限公司 | Adaptive matching signal connecting method |
| CN100426693C (en) * | 2005-11-03 | 2008-10-15 | 华为技术有限公司 | Method and system for carrying out backup on base station transceiver single plate channel |
| WO2018201757A1 (en) * | 2017-05-05 | 2018-11-08 | 中兴通讯股份有限公司 | Communication method, apparatus, system, and computer storage medium |
| WO2019096290A1 (en) * | 2017-11-17 | 2019-05-23 | 中兴通讯股份有限公司 | Association redirection method and device |
| CN113965613A (en) * | 2021-09-29 | 2022-01-21 | 新华三信息安全技术有限公司 | Dual-computer hot standby processing method, device, equipment and machine readable storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100484022C (en) * | 2005-07-04 | 2009-04-29 | 华为技术有限公司 | System and method for improving communication reliability |
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2001
- 2001-07-30 CN CNB011245190A patent/CN1145321C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388721C (en) * | 2003-03-18 | 2008-05-14 | 中兴通讯股份有限公司 | Method for protecting coupling based on flow control transfer protocol |
| CN100417156C (en) * | 2003-07-16 | 2008-09-03 | 中兴通讯股份有限公司 | A method and system for implementing data transmission in flow control transmission protocol |
| CN100417112C (en) * | 2005-01-25 | 2008-09-03 | 中兴通讯股份有限公司 | Adaptive matching signal connecting method |
| CN100426693C (en) * | 2005-11-03 | 2008-10-15 | 华为技术有限公司 | Method and system for carrying out backup on base station transceiver single plate channel |
| WO2018201757A1 (en) * | 2017-05-05 | 2018-11-08 | 中兴通讯股份有限公司 | Communication method, apparatus, system, and computer storage medium |
| US11071165B2 (en) | 2017-05-05 | 2021-07-20 | Zte Corporation | Communication method, equipment, system, and computer storage medium |
| WO2019096290A1 (en) * | 2017-11-17 | 2019-05-23 | 中兴通讯股份有限公司 | Association redirection method and device |
| US11758456B2 (en) | 2017-11-17 | 2023-09-12 | Zte Corporation | Association redirection method and device |
| CN113965613A (en) * | 2021-09-29 | 2022-01-21 | 新华三信息安全技术有限公司 | Dual-computer hot standby processing method, device, equipment and machine readable storage medium |
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