CN109981427A - Multi service access network method and system - Google Patents

Multi service access network method and system Download PDF

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Publication number
CN109981427A
CN109981427A CN201910252145.3A CN201910252145A CN109981427A CN 109981427 A CN109981427 A CN 109981427A CN 201910252145 A CN201910252145 A CN 201910252145A CN 109981427 A CN109981427 A CN 109981427A
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China
Prior art keywords
business
data processing
module
primary
sdh
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CN201910252145.3A
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CN109981427B (en
Inventor
余发强
徐旺生
张帆
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Fiberhome Telecommunication Technologies Co Ltd
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Fiberhome Telecommunication Technologies Co Ltd
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Priority to CN201910252145.3A priority Critical patent/CN109981427B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/02Details
    • H04J3/06Synchronising arrangements
    • H04J3/0635Clock or time synchronisation in a network
    • H04J3/0638Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0641Change of the master or reference, e.g. take-over or failure of the master
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854Wide area networks, e.g. public data networks
    • H04L12/2856Access arrangements, e.g. Internet access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/12Arrangements for maintenance or administration or management of packet switching networks network topology discovery or management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network-specific arrangements or communication protocols supporting networked applications
    • H04L67/16Service discovery or service management, e.g. service location protocol [SLP] or Web services

Abstract

The invention discloses a kind of multi service access network method and system, are related to the access of communications network and network-control management domain.The step of this method includes: the business information of access service as needed, and business data processing mode is arranged in the business to need to access, and business data processing mode includes SDH data processing mode and IP data processing mode;After service access, business processing is carried out by the business data processing mode of the business.The present invention can merge IP data processing mode and SDH data pattern, and then realize in service access, if business needs high time delay precision, carry out business processing using SDH data pattern;If business uses IP data processing mode to the more demanding of transmission performance.

Description

Multi service access network method and system
Technical field
The present invention relates to the access of communications network and network-control management domains, and in particular to a kind of multiple service access network Network method and system.
Background technique
In face of the trend of network IPization and telecommunications network, broadcasting and television network and computer communication network unification of three nets, existing access The business carried on network is more and more abundant, and service transmission quality requires higher and higher.Currently, transmitting and accessing in network It is obtained sufficiently improving and the mainstream technology of popularization and application is packet network and wireless access packetizing.But current existing biography Still have a certain number of SDH (Synchronous Digital Hierarchy, synchronous digital system) in defeated and access net Transmission device that is, for certain customers, or trusts SDH equipment service security high reliablity, Service Access point dispersion, letter Number interface requirements multiplicity, the features such as service access rate is complicated.
It follows that current network service data processing mode is SDH data processing mode and has packet switching network The IP data processing mode of network and wireless access packetizing function;But above-mentioned 2 kinds of modes using when be respectively present following superiority and inferiority Gesture:
For SDH data processing mode:
The advantage of SDH data processing mode are as follows: time delay precision is higher, can satisfy user to the rigors of time delay;
The disadvantage of SDH data processing mode are as follows: based on rigid conduit mode (scheduling of VC static state particle, Virtual Container, virtual container), and then have cured configured transmission (such as traffic scheduling treatment effeciency, bandwidth efficiency and bandwidth) etc., There are bottlenecks when use.
For IP data processing mode:
The advantage of IP data processing mode are as follows: configured transmission (traffic scheduling treatment effeciency, bandwidth efficiency and bandwidth etc.) can Extension, when use, are more flexible, are applicable to the business more demanding to transmission performance;
The disadvantage of IP data processing mode are as follows: time delay precision is lower, it is difficult to meet user to the rigors of time delay.
Summary of the invention
In view of the deficiencies in the prior art, present invention solves the technical problem that are as follows: how by IP data processing mode It is merged, and then is realized in service access with SDH data pattern, if business needs high time delay precision, use SDH data Mode carries out business processing;If business uses IP data processing mode to the more demanding of transmission performance.
To achieve the above objectives, multi service access network method provided by the invention, comprising the following steps: connect as needed Enter the business information of business, business data processing mode is arranged in the business to need to access, and business data processing mode includes SDH Data processing mode and IP data processing mode;After service access, business is carried out by the business data processing mode of the business Processing.
Based on the above technical solution, the business information of the access service as needed, to need the industry accessed The process of business setting business data processing mode include: the time delay precision needed for needing the business that accesses only with SDH data processing When mode adaptation, the business data processing mode that current business is arranged is SDH data processing mode;When the business institute that needs access When the transmission performance needed is only adapted to IP data processing mode, the business data processing mode that current business is arranged is at IP data Reason mode.
Based on the above technical solution, the business information of the access service as needed, to need the industry accessed The process of business setting business data processing mode further include: needed when SDH data processing mode and IP data processing mode are all satisfied When the business to be accessed, business data processing mode is arranged according to the demand of operator;On this basis, the service access Afterwards, carrying out business processing by the business data processing mode of the business includes following below scheme: after service access, when the business The business data processing mode discomfort timing of type and the business, is converted to the business datum with the business for the type of the business After the type of tupe adaptation, business processing is carried out by the business data processing mode of the business.
Based on the above technical solution, method includes the following steps: being the business and business processing of all accesses Process provides clock and synchronizes, and the synchronous clock source of clock is TDM line clock or synchronous Ethernet clock.
Based on the above technical solution, method includes the following steps: obtaining access service after service access Business information obtains service handling information when access service carries out business processing.
Multi service access network system provided by the invention, including working traffic processing unit and at least one general service Processing module;Working traffic processing unit includes primary SDH data processing module, primary SDH data interconnection bus, primary IP number According to processing module and primary IP data interconnection bus;Primary SDH data processing module include with general service processing module one by one Corresponding SDH data-interface, each SDH data-interface and each general service module with primary SDH data interconnection bus It is connected;Primary IP data processing module includes and the one-to-one IP data-interface of general service processing module, each IP data Interface and each general service module are connected with primary IP data interconnection bus;
General service module is used for: business processing object is arranged to the business that needs access, business processing object includes SDH Data processing module and IP data processing module;The business of access is sent to the business processing object of setting;
Primary SDH data processing module is used for: the business for receiving general service module transfer by SDH data-interface is laggard Row business processing;
Primary IP data processing module: it is carried out after receiving the separate traffic of general service module transfer by IP data-interface Business processing.
Based on the above technical solution, business processing pair is arranged to the business that needs access in the general service module The process of elephant includes:
When the time delay precision needed for needing the business accessed is only adapted to SDH data processing mode, current business is set Business processing object is SDH data processing module;
When the transmission performance needed for needing the business accessed is only adapted to IP data processing mode, current business is set Business processing object is IP data processing module;
When SDH data processing module and IP data processing module are all satisfied the business for needing to access, according to operator Business processing object is arranged in demand;
On this basis, general service module is also used to: after service access, when the type of the business and the business of the business Uncomfortable timing is dealt with objects, the type of the business is converted to after the type of the business processing object dispatching of the business, is transmitted To business processing object.
Based on the above technical solution, when the working traffic processing unit further includes active clock module and is primary Clock interconnection bus;Active clock module controls interconnection bus by active clock respectively, with primary SDH data processing mould Block, primary IP data processing module are connected with each general service module;
Active clock module is used for: for primary SDH data processing module, primary IP data processing module and each general industry Module of being engaged in provides clock and synchronizes, and the synchronous clock source of clock is TDM line clock or synchronous Ethernet clock.
Based on the above technical solution, the working traffic processing unit further includes primary management control module and master Interconnection bus is controlled with management;Primary management control module passes through primary management control interconnection bus respectively, with primary SDH data Processing module, primary IP data processing module are connected with each general service module;
Primary management control module is used for: obtaining primary SDH data processing module, primary IP data processing module and each The information of general service module.
It based on the above technical solution, further include standby traffic processing identical with working traffic processing unit structure Unit, standby traffic processing unit specifically include spare SDH data processing mould identical with primary SDH data processing module structure Block and spare IP data processing module identical with primary IP data processing module structure;In the general service module Business processing object further includes spare SDH data processing module and spare IP data processing module;
Spare SDH data processing module is used for: identical or different business is carried with primary SDH data processing module, with Primary SDH data processing module carries out main-apparatus protection and switches;
Spare IP data processing module is used for: identical or different business is carried with primary IP data processing module, with master Main-apparatus protection is carried out with IP data processing module to switch.
Compared with the prior art, the advantages of the present invention are as follows:
Compared with SDH or IP data processing mode is used alone in the prior art, the present invention enables to access service root According to pre-set business data processing mode, the business processing of Lai Jinhang SDH or IP data processing mode is realized with this by IP Data processing mode and SDH data pattern are merged, so that 2 kinds of common bearer services of mode.This not only significantly improves industry Business flexibility and quality of service (if business needs high time delay precision, carry out business processing using SDH data pattern;If business To the more demanding of transmission performance, then IP data processing mode is used), and take full advantage of existing SDH and IP operation connects Enter resource, the scope of application is than wide.
Detailed description of the invention
Fig. 1 is the illustraton of model of multi service access network system in the embodiment of the present invention;
Fig. 2 is the business model figure of multi service access network system in the embodiment of the present invention;
Fig. 3 is the management control of multi service access network system and clock models figure in the embodiment of the present invention.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and embodiments.
Multi service access network method in the embodiment of the present invention, comprising the following steps: the industry of access service as needed Business data processing mode is arranged in business information, the business to need to access, and business data processing mode includes SDH data processing mould Formula and IP data processing mode;After service access, business processing is carried out by the business data processing mode of the business.
It follows that the present invention enables to connect compared with SDH or IP data processing mode is used alone in the prior art Enter business according to pre-set business data processing mode, the business processing of Lai Jinhang SDH or IP data processing mode, with this IP data processing mode and SDH data pattern are merged in realization, so that 2 kinds of common bearer services of mode.This is not only significant It improves service flexibility and quality of service (if business needs high time delay precision, is carried out at business using SDH data pattern Reason;If business to the more demanding of transmission performance, uses IP data processing mode), and take full advantage of existing SDH and IP operation access-in resource, the scope of application is than wide.
Preferably, the business information of the access service as needed, the business to need to access are arranged at business datum The process of reason mode includes:
When the time delay precision needed for needing the business accessed is only adapted to SDH data processing mode, current business is set Business data processing mode is SDH data processing mode;
When the transmission performance needed for needing the business accessed is only adapted to IP data processing mode, current business is set Business data processing mode is IP data processing mode;
When SDH data processing mode and IP data processing mode are all satisfied the business for needing to access, according to operator Business data processing mode is arranged in demand.
On this basis, after the service access, business processing packet is carried out by the business data processing mode of the business Include following below scheme:
After service access, when the business data processing mode discomfort timing of type and the business of the business (such as accesses Business be SDH business, but be arranged business data processing mode be IP data processing mode), by the type of the business turn It is changed to after the type of the business data processing mode adaptation of the business, industry is carried out by the business data processing mode of the business Business processing.
It follows that disclosure sets forth the processes for the business data processing mode that meet demand is arranged for business;With this Meanwhile business data processing mode can also be arranged according to the demand of operator to realize by business conversion function in the present invention, This significantly reduces the use costs of operator;Such as the business of access also IP operation, but the communication equipment of operator is SDH Processing equipment, if needing newly-increased IP processing equipment without business conversion function.
Preferably, the multi service access network method in the embodiment of the present invention, it is further comprising the steps of: for all accesses Business is synchronous with business procession offer clock, and the synchronous clock source of clock is TDM (Time Division Multiplexing, time division multiplexing) line clock or synchronous Ethernet clock.
It follows that clock source of the invention can sufficiently meet various media need synchronous with the clock under application scenarios It asks.
Preferably, the multi service access network method in the embodiment of the present invention, it is further comprising the steps of: after service access The business information for obtaining access service is obtained when access service carries out business processing (SDH data processing or IP data processing) Service handling information.
It follows that the present invention can obtain the business information and service handling information of all access service immediately, with This realizes that network management information merges access with the effective of other networks, convenient for forming the Unified Network management topology of network, in turn User perceptibility is not only increased, and reduces network operation difficulty, convenient for the positioning of network failure.
It is shown in Figure 1, the multi service access network system in the embodiment of the present invention, including working traffic processing unit and At least one general service processing module;Working traffic processing unit includes primary SDH data processing module, primary SDH data Interconnection bus A, primary IP data processing module and primary IP data interconnection bus C;Primary SDH data processing module includes and leads to The SDH data-interface of (quantity is identical), each SDH data-interface and each general industry are corresponded with Service Processing Module Business module is connected with primary SDH data interconnection bus A;Primary IP data processing module includes and general service processing module one The IP data-interface of one corresponding (quantity is identical), each IP data-interface and each general service module with primary IP number It is connected according to interconnection bus C.
General service module is used for: business processing object is arranged to the business that needs access, business processing object includes SDH Data processing module and IP data processing module;The business of access is sent to the business processing object of setting.
Primary SDH data processing module is used for: the separate traffic of general service module transfer is received by SDH data-interface After carry out business processing, specific business processing mode is the prior art, such as processing SDH Overhead, is completed to SDH business Monitoring and management, realize VC grades of intersection mapping function, provide access and transmission of the pipeline based on VC stage speed for business Deng.
Primary IP data processing module: it is carried out after receiving the separate traffic of general service module transfer by IP data-interface Business processing, specific business processing mode is the prior art, such as realizes the exchange and transmission of IP data, is based on OSI structure mould Type has the processing function etc. of TCP/IP network protocol.
It follows that with SDH or IP data processing mode is in the prior art used alone, (being only applicable in a kind of bus is passed Defeated IP and SDH business, the time delay precision using IP bus transfer SDH business is lower, using the transmission of SDH bus transfer IP operation Performance is poor) it compares, the present invention can be respectively by independent SDH data interconnection bus and IP data interconnection bus, to distinguish SDH and IP operation are transmitted, and then meets the time delay required precision of SDH business needs and the transmission performance of IP operation needs It is required that.
Preferably, general service module includes: to the process for the business setting business processing object that needs access
When the time delay precision needed for needing the business accessed is only adapted to SDH data processing mode, current business is set Business processing object is SDH data processing module;
When the transmission performance needed for needing the business accessed is only adapted to IP data processing mode, current business is set Business processing object is IP data processing module;
When SDH data processing module and IP data processing module are all satisfied the business for needing to access, according to operator Business processing object is arranged in demand.
On this basis, general service module is also used to: after service access, when the type of the business and the business of the business Uncomfortable timing is dealt with objects, the type of the business is converted to after the type of the business processing object dispatching of the business, is transmitted To business processing object.
Preferably, shown in Figure 1, the working traffic processing unit further includes active clock module and active clock control Interconnection bus G processed;Referring to figure 1 and figure 2, active clock module controls interconnection bus G by active clock respectively, and primary SDH data processing module, primary IP data processing module are connected with each general service module.
Active clock module is used for: for primary SDH data processing module, primary IP data processing module and each general industry Module of being engaged in provides clock and synchronizes, and the synchronous clock source of clock is TDM line clock or synchronous Ethernet clock.
Preferably, the working traffic processing unit further includes that primary management control module and primary management control interconnection are total Line E;Referring to figure 1 and figure 2, primary management control module passes through primary management control interconnection bus E respectively, with primary SDH Data processing module, primary IP data processing module are connected with each general service module.
Primary management control module is used for: obtaining primary SDH data processing module, primary IP data processing module and each The information of general service module.
It follows that the present invention can provide independent management control module, it can be achieved that network management information and other networks have The fusion of effect accesses, and manages topology convenient for the Unified Network of ready-made network.
Preferably, shown in Figure 1, the multi service access network system in the embodiment of the present invention further includes and primary industry The identical standby traffic processing unit of processing unit structure of being engaged in, standby traffic processing unit specifically include spare SDH data processing Module, spare SDH data interconnection bus B, spare IP data processing module and spare IP data interconnection bus D;Spare SDH data Processing module includes SDH data-interface identical with general service processing module quantity, each SDH data-interface and each General service module is connected with spare SDH data interconnection bus B;Spare IP data processing module includes and general service is handled The identical IP data-interface of module number, each IP data-interface and each general service module are mutual with spare IP data Even bus D is connected.Business processing object in general service module further includes spare SDH data processing module and spare IP data Processing module.
Active and standby SDH data processing module realizes looped network mechanism and automatic protection switching mechanism according to SDH basic principle, can be only The different SDH class business of vertical carrying, can also carry identical SDH class business simultaneously;Active and standby IP data processing module is according to IP number Realize looped network mechanism and automatic protection switching mechanism according to the basic principle of network, can the different IP class business of independent bearing, can also Identical IP class business is carried simultaneously, and the processing of this mode will preferably realize the masterslave switchover function of access network system Energy.
Shown in Figure 2, primary SDH data processing module passes through active and standby interconnecting channels I and spare SDH data processing module It is connected, primary IP data processing module is connected by active and standby interconnecting channels J with spare IP data processing module, active and standby interconnecting channels For realizing active and standby synchronizing function.
Referring to shown in Fig. 1 and Fig. 3, standby traffic processing unit specifically further includes standby clock module and standby clock control Interconnection bus H;Standby clock module controls interconnection bus H by standby clock respectively, with active and standby SDH data processing module, master Standby IP data processing module is connected with each general service module, i.e. the clock control interconnected bus interface of standby clock module has N (quantity of general service module is 20 in the present embodiment)+4 (active and standby SDH data processing module and active and standby IP data processings Module), active clock module is similarly.
Referring now to shown in Fig. 3, active clock module controls interconnection bus G and standby clock module phase by active clock Even, standby clock module controls interconnection bus H by standby clock and is connected with active clock module, and which can effective solution Clock information synchronizing function in network;Active clock module and standby clock module are used to: for active and standby SDH data processing mould It is synchronous that block, active and standby IP data processing module and each general service module provide clock.
Referring to shown in Fig. 1 and Fig. 3, standby traffic processing unit specifically further includes spare management control module and spare management Control interconnection bus F;Spare management control module passes through spare management control interconnection bus F respectively, with active and standby SDH data processing Module, active and standby IP data processing module are connected with each general service module, i.e., the management control of spare management control module is mutual Even bus interface has N+4, and primary management control module is similarly.
Referring now to shown in Fig. 3, primary management control module controls interconnection bus E by primary management and spare management is controlled Molding block is connected, and spare management control module controls interconnection bus F by spare management and is connected with primary management control module, should Mode can clock information synchronizing function in effective solution network;Primary management control module and spare management control module are used In: obtain the information of active and standby SDH data processing module, active and standby IP data processing module and each general service module.
Of the invention is applicable in the cut-in convergent layer that scene is preferably communication network, can be used for independence networking, and provide independence Various businesses data-signal needed for networking, the requirement of network management signals and clock control signal;At the same time, of the invention The main trend that network system is suitable for unification of three nets is accessed, the various need of carrier network and industry network insertion transmission are merged It asks, can be good at meeting telecommunications network, the development and popularization of broadcasting and television network and computer network.
It should be understood that system provided in an embodiment of the present invention is when carrying out intermodule communication, only with above-mentioned each function The division progress of module can according to need and for example, in practical application by above-mentioned function distribution by different function moulds Block is completed, i.e., the internal structure of system is divided into different functional modules, to complete all or part of function described above Energy.
Further, the present invention is not limited to the above-described embodiments, for those skilled in the art, Without departing from the principles of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as the present invention Protection scope within.The content being not described in detail in this specification belongs to existing skill well known to professional and technical personnel in the field Art.

Claims (10)

1. a kind of multi service access network method, which is characterized in that method includes the following steps: access service as needed Business data processing mode is arranged in business information, the business to need to access, and business data processing mode includes SDH data processing Mode and IP data processing mode;After service access, business processing is carried out by the business data processing mode of the business.
2. multi service access network method as described in claim 1, which is characterized in that the industry of the access service as needed Business information includes: when the business that needs access is taken to need the business accessed that the process of business data processing mode is arranged When prolonging precision and being only adapted to SDH data processing mode, the business data processing mode that current business is arranged is SDH data processing mould Formula;When the transmission performance needed for needing the business accessed is only adapted to IP data processing mode, the business of current business is set Data processing mode is IP data processing mode.
3. multi service access network method as described in claim 1, which is characterized in that the industry of the access service as needed The process of business data processing mode is arranged in business information, the business to need to access further include: as SDH data processing mode and IP When data processing mode is all satisfied the business for needing to access, business data processing mode is arranged according to the demand of operator;Herein On the basis of, after the service access, carrying out business processing by the business data processing mode of the business includes following below scheme: industry After business access, when the business data processing mode discomfort timing of the type and the business of the business, the type of the business is converted To carry out business by the business data processing mode of the business with after the type of the business data processing mode adaptation of the business Processing.
4. multi service access network method as described in any one of claims 1 to 3, which is characterized in that this method includes following Step: provide with business procession that clock is synchronous for the business of all accesses, the synchronous clock source of clock is TDM line clock Or synchronous Ethernet clock.
5. multi service access network method as described in any one of claims 1 to 3, which is characterized in that this method includes following Step: obtaining the business information of access service after service access, obtains business processing when access service carries out business processing Information.
6. a kind of multi service access network system, including working traffic processing unit and at least one general service processing module; It is characterized by: working traffic processing unit includes primary SDH data processing module, primary SDH data interconnection bus, primary IP Data processing module and primary IP data interconnection bus;Primary SDH data processing module includes and general service processing module one One corresponding SDH data-interface, each SDH data-interface and each general service module are total with the interconnection of primary SDH data Line is connected;Primary IP data processing module includes and the one-to-one IP data-interface of general service processing module, each IP number It is connected with primary IP data interconnection bus according to interface and each general service module;
General service module is used for: business processing object is arranged to the business that needs access, business processing object includes SDH data Processing module and IP data processing module;The business of access is sent to the business processing object of setting;
Primary SDH data processing module is used for: the laggard industry of business of general service module transfer is received by SDH data-interface Business processing;
Primary IP data processing module: the laggard industry of separate traffic for receiving general service module transfer by IP data-interface is engaged in Processing.
7. multi service access network system as claimed in claim 6, it is characterised in that: the general service module connects needs Enter business setting business processing object process include:
When the time delay precision needed for needing the business accessed is only adapted to SDH data processing mode, the business of current business is set Process object is SDH data processing module;
When the transmission performance needed for needing the business accessed is only adapted to IP data processing mode, the business of current business is set Process object is IP data processing module;
When SDH data processing module and IP data processing module are all satisfied the business for needing to access, according to the demand of operator Business processing object is set;
On this basis, general service module is also used to: after service access, when the type of the business and the business processing of the business The type of the business is converted to after the type of the business processing object dispatching of the business, is transmitted to industry by object discomfort timing Business process object.
8. multi service access network system as claimed in claim 6, it is characterised in that: the working traffic processing unit also wraps Include active clock module and active clock control interconnection bus;Active clock module is total by active clock control interconnection respectively Line is connected with primary SDH data processing module, primary IP data processing module and each general service module;
Active clock module is used for: for primary SDH data processing module, primary IP data processing module and each general service mould Block provides clock and synchronizes, and the synchronous clock source of clock is TDM line clock or synchronous Ethernet clock.
9. multi service access network system as claimed in claim 6, it is characterised in that: the working traffic processing unit also wraps Include primary management control module and primary management control interconnection bus;Primary management control module passes through primary management control respectively Interconnection bus is connected with primary SDH data processing module, primary IP data processing module and each general service module;
Primary management control module is used for: obtaining primary SDH data processing module, primary IP data processing module and each general The information of business module.
10. such as the described in any item multi service access network systems of claim 6 to 9, it is characterised in that: further include and primary industry The identical standby traffic processing unit of processing unit structure of being engaged in, standby traffic processing unit specifically include at primary SDH data Manage the identical spare SDH data processing module of modular structure and spare IP identical with primary IP data processing module structure Data processing module;Business processing object in the general service module further includes spare SDH data processing module and spare IP data processing module;
Spare SDH data processing module is used for: identical or different business is carried with primary SDH data processing module, and it is primary SDH data processing module carries out main-apparatus protection and switches;
Spare IP data processing module is used for: identical or different business is carried with primary IP data processing module, with primary IP Data processing module carries out main-apparatus protection and switches.
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