CN104270433B - Distributed SSM protocol processing systems and method based on complicated packet switching system - Google Patents
Distributed SSM protocol processing systems and method based on complicated packet switching system Download PDFInfo
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- CN104270433B CN104270433B CN201410487364.7A CN201410487364A CN104270433B CN 104270433 B CN104270433 B CN 104270433B CN 201410487364 A CN201410487364 A CN 201410487364A CN 104270433 B CN104270433 B CN 104270433B
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- 238000012545 processing Methods 0.000 title claims abstract description 135
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 7
- 230000001934 delay Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0641—Change of the master or reference, e.g. take-over or failure of the master
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
Abstract
A kind of distributed SSM protocol processing systems and method based on complicated packet switching system, it is related to synchronous transmission system technical field, the system includes main control unit, systems exchange unit and at least one business disk, and systems exchange unit is responsible for the communication between master control processing unit and Service Processing Unit；Main control unit includes master control processing unit and master control logic processing unit, and master control logic processing unit is responsible for collecting the SSM input information of each each port of business disk, and the output data to master control processing unit is packaged；Master control processing unit is responsible for the processing that SSM inputs information；Business disk includes Service Processing Unit and business logic processing unit；Service Processing Unit is responsible for the SSM output informations of each port of calculating business disk and sent to business logic processing unit；Business logic processing unit is responsible for the SSM of each port of this business disk inputting information reporting to master control logic processing unit, and ESMC messages are sent to each port.
Description
Technical field
It is specifically a kind of distribution based on complicated packet switching system the present invention relates to synchronous transmission system technical field
Formula SSM (Synchronous Status Message, Synchronication status message) protocol processing systems and method.
Background technology
At present, SSM agreements are widely used in the synchronous digital hierarchy of transmission field.For synchronization system, the synchronization of clock
It is vital, and the overriding concern target that timing loop is design is avoided in the clock topology design of synchronization system.
For how to avoid producing timing loop, the realization of SSM agreements is an important means.The realization of SSM agreements is not
Only include the realization of SSM rules, also there are strict requirements to the time of SSM information processings.According to G.8262 with national standard YD/T
1267 require, the SSM processing delays T under no switching conditionNSM(non-switch messages time delay)<200ms, there is the SSM under switching condition
Processing delay TSM(switch messages time delay)<500ms, the SSM processing delays T under the conditions of holdingHM(keeping information time delay)<
2000ms。
As Current communications equipment becomes increasingly complex, the business processing port of support is also gradually increased.Each port is needed
Support clock synchronous, support transmission SSM information.Assuming that shared N block business disks, every piece of business disk has M port.According to tradition
Algorithm, master cpu need to carry out the SSM information operations of N*M port altogether.For complication system, the processing port of SSM protocol stacks
May be very many.The number of services of now system required processing in itself is big, and class of business is complicated, and cpu load is very big on main control unit,
The SSM message of multiport is handled simultaneously, and SSM delays will be unsatisfactory for protocol requirement.If the processing delay of SSM agreements is excessive, when
Clock source will make to produce timing loop (timing loop in clock loop when switching：The net for tracing into oneself offer from clock is synchronously believed
Number phenomenon, referred to as timing loop.When being looped back to input indirectly directly or through network from clock output, occur timing loop), cause
Overall clock chain circuit is unstable, and the generation vibration in clock chain circuit.
The content of the invention
For defect present in prior art, it is an object of the invention to provide a kind of based on complicated packet switching system
Distributed SSM protocol processing systems and method, present invention improves SSM corresponding time delay, it is effective reduce SSM processing when
Between, it is to avoid timing loop is produced in clock loop.
To achieve the above objectives, the present invention is adopted the technical scheme that：A kind of distribution based on complicated packet switching system
SSM protocol processing systems, including main control unit, systems exchange unit and at least one business disk, systems exchange unit are responsible for master control
Communication between processing unit and Service Processing Unit；Main control unit includes master control processing unit and master control logic processing unit, institute
State the SSM input information that master control logic processing unit is responsible for collecting each each port of business disk, the output to master control processing unit
Data are packaged, and are sent to each business logic processing unit；The master control processing unit is responsible for the SSM inputs letter
The processing of breath；And send output data to each Service Processing Unit；Each business disk include Service Processing Unit and
Business logic processing unit；The Service Processing Unit is responsible for the SSM output informations of each port of calculating business disk, and is encapsulated
Into ESMC messages, send to business logic processing unit；The business logic processing unit is responsible for each port of this business disk
SSM inputs information reporting to master control logic processing unit, and the ESMC messages are sent to each port.
On the basis of above-mentioned technical proposal, master control protocol stack is provided with the master control processing unit, it is responsible for the SSM
Input the processing of information；Service protocol stack is provided with the Service Processing Unit, the SSM that it is responsible for each port of calculating business disk is defeated
Go out information.
On the basis of above-mentioned technical proposal, in addition to standby main control unit, the standby main control unit is the redundancy of main control unit
Unit, the data to main control unit are replicated and backed up.
On the basis of above-mentioned technical proposal, in addition to communication unit between disk, communication unit is used for main control unit between the disk
The transmission of load data between standby main control unit.
On the basis of above-mentioned technical proposal, include the order input terminal of peripheral hardware, client passes through order input terminal
Time clock feature to the system is configured, and the configuration information that master control protocol stack enters commands into terminal is changed and separated,
Configuration needed for SSM agreements is sent to master control processing unit.
On the basis of above-mentioned technical proposal, the order input terminal is to be provided with equipment webmastering software or order line
The PC of inputting interface.
The distributed SSM protocol processes method based on complicated packet switching system based on said system, comprises the following steps：
The each business logic processing units of step S1. obtain the SSM input information of each port of this business disk；Step S2. master controls processing is single
Member obtains the configuration information of user's input, by systems exchange unit, notifies each business disk to need to report SSM to input information
Business disk is numbered；Step S3. is notified the business disk that SSM need to be reported to input information will be respective by business logic processing unit
SSM inputs information reporting to master control logic processing unit；Master control protocol stack, the master control are provided with step S4. master control processing units
The SSM input information of each business disk carries out SSM associations in configuration information and master control logic processing unit that protocol stack is inputted to user
View processing, and result is merged with the configuration information that user inputs, former business disk is back to by systems exchange unit
Service Processing Unit；Service protocol stack is provided with step S5. Service Processing Units, the service protocol stack is according to the processing received
As a result the configuration information inputted with user, calculates the SSM output informations of each port, and Service Processing Unit, which exports the SSM, to be believed
Breath is packaged into ESMC messages, is sent by business logic processing unit to each port of business disk.
On the basis of above-mentioned technical proposal, in step S4, configuration information and master that master control protocol stack is inputted according to user
The SSM input information for controlling each business disk in Logical processing unit calculates the SSM values in Current lock source and Current lock source.
On the basis of above-mentioned technical proposal, in step S5, the form of the ESMC messages meets G.8264 protocol requirement.
The beneficial effects of the present invention are：
1st, a kind of method for distributed arithmetic that the present invention is used, the processing of SSM information is total to by main control unit and business disk
With completion.The transmitting portion of SSM rules is completed by business disk, and focusing on for whole equipment all of the port is changed into business Pan Chu
The port of itself is managed, SSM corresponding time delay is improved, the effective time for reducing SSM processing, it is to avoid it is fixed to be produced in clock loop
Shi Huan.
2nd, the present invention can selectively be sent by data exchange (packet switch) the business disk between main control unit and business disk
The SSM messages that master control needs reduce data traffic to main control unit.
3rd, communication unit is synchronized between the processing unit of main control unit of the invention and standby main control unit crosses disk, ensure that
Each business disk that main control unit and standby main control unit are consistent on the configuration information of reception, main control unit and standby main control unit are obtained
State consistency, can be provided protection against when main control unit breaks down.
Brief description of the drawings
Fig. 1 is the structural frames of the distributed SSM protocol processing systems based on complicated packet switching system in the embodiment of the present invention
Figure；
Fig. 2 is main control unit and the synchronous schematic diagram of standby main control unit in the embodiment of the present invention；
Fig. 3 is the schematic diagram of main control unit acquisition configuration information in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
It is shown in Figure 1, a kind of distributed SSM protocol processing systems based on complicated packet switching system, including main control unit,
Systems exchange unit and at least one business disk, systems exchange unit are responsible between master control processing unit and Service Processing Unit
Communication；Main control unit includes master control processing unit and master control logic processing unit, and the master control logic processing unit is responsible for collecting
The SSM input information of each each port of business disk, is packaged to the output data of master control processing unit and (is packaged into internal system
Communication format), and send to each business logic processing unit；The master control processing unit is responsible for the SSM inputs information
Processing；And send output data to each Service Processing Unit；Master control protocol stack is provided with the master control processing unit, its
It is responsible for the processing that the SSM inputs information.Each business disk includes Service Processing Unit and business logic processing unit；Institute
State Service Processing Unit and be responsible for the SSM output informations of each port of calculating business disk, and be encapsulated into ESMC (Ethernet
Synchronization messaging channel, Ethernet synchronization message passage) G.8264 message (meet international standard
ESMC message formats), send to business logic processing unit；Service protocol stack is provided with the Service Processing Unit, it is born
Blame the SSM output informations of each port of calculating business disk.The business logic processing unit is responsible for the SSM of each port of this business disk
Information reporting is inputted to master control logic processing unit, the ESMC messages are sent to each port.
It is shown in Figure 2, in addition to communication unit between standby main control unit and disk, the standby main control unit is the superfluous of main control unit
Remaining unit, the data to main control unit are replicated and backed up.Between the disk communication unit be used for main control unit and standby main control unit it
Between load data transmission.For ensureing to be consistent in the network management configuration that main control unit and standby main control unit are received, main control unit and
Each business disk state consistency that standby main control unit is got.
It is shown in Figure 3, include the order input terminal of peripheral hardware, client by order input terminal to the system when
Clock function is configured, and includes whether that enabling SSM agreements, which Zhong Yuan enables SSM agreements, configuration of input source etc..Master control is assisted
The configuration information that view stack enters commands into terminal is changed and separated, and the configuration needed for SSM agreements is sent to master control and handled
Unit.The order input terminal is the PC for being provided with equipment webmastering software or order line inputting interface.
The distributed SSM protocol processes method based on complicated packet switching system based on said system, comprises the following steps：
The each business logic processing units of step S1. obtain the SSM input information of each port of this business disk.
Step S2. master controls processing unit obtains the configuration information of user's input, by systems exchange unit, notifies each industry
Business disk needs the business disk numbering for reporting SSM to input information.
Step S3. is notified the business disk that SSM need to be reported to input information by business logic processing unit by respective SSM
Information reporting is inputted to master control logic processing unit.
Master control protocol stack, the configuration information that the master control protocol stack is inputted to user are provided with step S4. master control processing units
And the SSM input information of each business disk carries out SSM protocol processes in master control logic processing unit, master control protocol stack is defeated according to user
The SSM input information of each business disk calculates Current lock source (equipment clock in the configuration information and master control logic processing unit that enter
Locking source come as which business disk) and Current lock source SSM values (the SSM values corresponding to locked business disk).Will
The configuration information that result is inputted with user merges, and the business processing list of former business disk is back to by systems exchange unit
Member.
Service protocol stack is provided with step S5. Service Processing Units, the service protocol stack is according to the result received
The configuration information inputted with user, calculates the SSM output informations of each port, and Service Processing Unit seals the SSM output informations
ESMC messages are dressed up, are sent by business logic processing unit to each port of business disk.The form of the ESMC messages is met
G.8264 agreement (Distribution of timing information through packet networks, ITU-T
G.8264) require.
Each business disk obtains the configuration information that main control unit is sent by systems exchange unit in the present invention.Main control unit passes through this
Configuration information controls some or certain several specific business disks, is respectively held this business disk by respective Logical processing unit
The SSM of mouth inputs information reporting to main control unit.Main control unit is according to configuration information, and enable SSM agreements selects source part.Pass through SSM
The high clock source of agreement selection priority is as system clock source.Main control unit is by the business disk and business disk of selection after the completion of computing
The Service Processing Unit that port passes through each business disk of communication notifications between disk.Each Service Processing Unit integrates the state of main control unit transmission
With the transmitting portion of configuration operation SSM agreements, it is and the result generated is each to business disk by business logic processing unit
Port is sent.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (9)
1. a kind of distributed SSM protocol processing systems based on complicated packet switching system, it is characterised in that：Including main control unit, it is
System crosspoint and at least one business disk,
Systems exchange unit, is responsible for the communication between master control processing unit and Service Processing Unit；
Main control unit includes master control processing unit and master control logic processing unit, and the master control logic processing unit is responsible for collecting each
The SSM input information of each port of business disk, the output data to master control processing unit is packaged, and is sent to each business
Logical processing unit；The master control processing unit is responsible for the processing that the SSM inputs information；And send output data to each
Service Processing Unit；
Each business disk includes Service Processing Unit and business logic processing unit；The Service Processing Unit is responsible for calculating
The SSM output informations of each port of business disk, and ESMC messages are encapsulated into, send to business logic processing unit；The industry
Business Logical processing unit is responsible for the SSM of each port of this business disk inputting information reporting to master control logic processing unit, will be described
ESMC messages are sent to each port.
2. the distributed SSM protocol processing systems as claimed in claim 1 based on complicated packet switching system, it is characterised in that：
Master control protocol stack is provided with the master control processing unit, it is responsible for the processing that the SSM inputs information；
Service protocol stack is provided with the Service Processing Unit, it is responsible for the SSM output informations of each port of calculating business disk.
3. the distributed SSM protocol processing systems as claimed in claim 1 based on complicated packet switching system, it is characterised in that：
Also include standby main control unit, the standby main control unit is the redundancy unit of main control unit, and the data to main control unit are replicated and standby
Part.
4. the distributed SSM protocol processing systems as claimed in claim 3 based on complicated packet switching system, it is characterised in that：
Also including communication unit between communication unit between disk, the disk is used for the transmission of load data between main control unit and standby main control unit.
5. the distributed SSM protocol processing systems as claimed in claim 1 based on complicated packet switching system, it is characterised in that：
Also include the order input terminal of peripheral hardware, client is configured by order input terminal to the time clock feature of the system, master control
The configuration information that protocol stack enters commands into terminal is changed and separated, and the configuration needed for SSM agreements is sent to master control
Manage unit.
6. the distributed SSM protocol processing systems as claimed in claim 5 based on complicated packet switching system, it is characterised in that：
The order input terminal is the PC for being provided with equipment webmastering software or order line inputting interface.
7. the distributed SSM protocol processes method based on complicated packet switching system based on system described in claim 1, its feature
It is, comprises the following steps：
The each business logic processing units of step S1. obtain the SSM input information of each port of this business disk；
Step S2. master controls processing unit obtains the configuration information of user's input, by systems exchange unit, notifies each business disk
Need the business disk numbering for reporting SSM to input information；
Step S3. is notified the business disk that SSM need to be reported to input information and is inputted respective SSM by business logic processing unit
Information reporting is to master control logic processing unit；
Master control protocol stack, configuration information and master that the master control protocol stack is inputted to user are provided with step S4. master control processing units
The SSM input information progress SSM protocol processes of each business disk in Logical processing unit are controlled, and result and user are inputted
Configuration information merges, and the Service Processing Unit of former business disk is back to by systems exchange unit；
Service protocol stack is provided with step S5. Service Processing Units, the service protocol stack is according to the result and use received
The configuration information of family input, calculates the SSM output informations of each port, the SSM output informations are packaged into by Service Processing Unit
ESMC messages, are sent by business logic processing unit to each port of business disk.
8. the distributed SSM protocol processes method as claimed in claim 7 based on complicated packet switching system, it is characterised in that：
In step S4, the SSM of each business disk is defeated in configuration information and master control logic processing unit that master control protocol stack is inputted according to user
Enter the SSM values that information calculates Current lock source and Current lock source.
9. the distributed SSM protocol processes method as claimed in claim 7 based on complicated packet switching system, it is characterised in that：
In step S5, the form of the ESMC messages meets G.8264 protocol requirement.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487364.7A CN104270433B (en) | 2014-09-23 | 2014-09-23 | Distributed SSM protocol processing systems and method based on complicated packet switching system |
| MYPI2016704913A MY190055A (en) | 2014-09-23 | 2015-09-18 | Distributed ssm protocol processing system and method based on complex packet switching system |
| RU2016146784A RU2673404C2 (en) | 2014-09-23 | 2015-09-18 | System and method for processing distributed ssm protocols based on complex packet exchange system |
| PCT/CN2015/089935 WO2016045539A1 (en) | 2014-09-23 | 2015-09-18 | Distributed ssm protocol processing system and method based on complex packet switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410487364.7A CN104270433B (en) | 2014-09-23 | 2014-09-23 | Distributed SSM protocol processing systems and method based on complicated packet switching system |
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| Publication Number | Publication Date |
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| CN104270433A CN104270433A (en) | 2015-01-07 |
| CN104270433B true CN104270433B (en) | 2017-11-07 |
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| Country | Link |
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| CN (1) | CN104270433B (en) |
| MY (1) | MY190055A (en) |
| RU (1) | RU2673404C2 (en) |
| WO (1) | WO2016045539A1 (en) |
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| CN104270433B (en) * | 2014-09-23 | 2017-11-07 | 烽火通信科技股份有限公司 | Distributed SSM protocol processing systems and method based on complicated packet switching system |
| CN115861775B (en) * | 2022-12-08 | 2024-02-23 | 广州市双照电子科技有限公司 | Video analysis method and system |
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| CN100373828C (en) * | 2002-11-21 | 2008-03-05 | 华为技术有限公司 | Method for testing clock reverse delay system of transmission equipment |
| CN1274117C (en) * | 2002-12-12 | 2006-09-06 | 华为技术有限公司 | Method of preventing formation of timing loop in synchronous network |
| EP2502372B1 (en) * | 2009-11-19 | 2017-08-02 | Telefonaktiebolaget LM Ericsson (publ) | Configuration of synchronisation network |
| CN104270433B (en) * | 2014-09-23 | 2017-11-07 | 烽火通信科技股份有限公司 | Distributed SSM protocol processing systems and method based on complicated packet switching system |
-
2014
- 2014-09-23 CN CN201410487364.7A patent/CN104270433B/en active Active
-
2015
- 2015-09-18 RU RU2016146784A patent/RU2673404C2/en active
- 2015-09-18 MY MYPI2016704913A patent/MY190055A/en unknown
- 2015-09-18 WO PCT/CN2015/089935 patent/WO2016045539A1/en active Application Filing
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| CN101043308A (en) * | 2006-03-24 | 2007-09-26 | 华为技术有限公司 | Method for protecting service broad level of SDH equipment and SDH equipment |
| EP2207286A1 (en) * | 2009-01-12 | 2010-07-14 | Alcatel Lucent | Method and apparatus for distributing a reference frequency in an heterogenous network |
| CN102158944A (en) * | 2010-02-11 | 2011-08-17 | 华为技术有限公司 | Sub-frame, network element equipment, and method for synchronizing sub-frame clock |
| CN102237940A (en) * | 2010-05-04 | 2011-11-09 | 华为技术有限公司 | Method, system and device for transferring sync-status message (SSM) in passive optical network |
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| CN102208958A (en) * | 2011-07-04 | 2011-10-05 | 瑞斯康达科技发展股份有限公司 | Clock synchronization method for synchronous Ethernets, as well as synchronous information sending/receiving method, device and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104270433A (en) | 2015-01-07 |
| RU2673404C2 (en) | 2018-11-26 |
| RU2016146784A3 (en) | 2018-10-24 |
| WO2016045539A1 (en) | 2016-03-31 |
| RU2016146784A (en) | 2018-10-24 |
| MY190055A (en) | 2022-03-23 |
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