CN101162960B - Main-slave control cell signal synchronizing method - Google Patents
Main-slave control cell signal synchronizing method Download PDFInfo
- Publication number
- CN101162960B CN101162960B CN2007101864523A CN200710186452A CN101162960B CN 101162960 B CN101162960 B CN 101162960B CN 2007101864523 A CN2007101864523 A CN 2007101864523A CN 200710186452 A CN200710186452 A CN 200710186452A CN 101162960 B CN101162960 B CN 101162960B
- Authority
- CN
- China
- Prior art keywords
- control unit
- main
- sign
- subsequent use
- sends
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention proposes a method of the signals of main/standby control units being synchronous. The method mainly comprises the following processes: the main control unit sends a synchronous request flag to the standby control unit via communication line when detecting the corresponding condition. The standby control unit sends a synchronous response flag to the main control unit after detecting the corresponding condition and receiving the synchronous request flag sent by the main control unit. The main control unit eliminates the synchronous request flag sent to the standby control unit after receiving the synchronous response flag sent by the standby control unit. The main control unit and or the standby control unit gives control signals. The method can enable the main/standby control units to make process and to give the control signals at the same time, thereby shortening the time of the service from loss recovering to lossless as much as possible. In addition, the invention has strong operability.
Description
One, technical field
The present invention relates to the optical communication field, particularly the synchronous method of a kind of main-slave control cell signal in the optical synchronization digital transmission system (SDH, SynchronousDigital Hierarchy).
Two, background technology:
Current SDH equipment adopts the form of control unit 1+1 backup mostly; Be that one of them control unit is used as main; The another one control unit is switched subsequent use control unit to realize systematically stability and reliability as subsequent use when the master goes wrong with control unit.But under some particular case, Service Processing Unit just can be taked corresponding action after need detecting the control signal that main-slave control cell provides at the same time.Yet because two control units are relatively independent, the time that two control units provide control signal is difference to some extent.Because two control units provide the asynchronism(-nization) of control signal, professional from diminish return to the harmless time also can be long, therefore can be able to not satisfy the requirement of some operational indicators.
Common solution is, a control unit was waited for a regular time earlier before providing control signal, in the hope of providing the time synchronized of control signal with another control unit.Service Processing Unit is after taking corresponding action like this, professional from diminish return to the harmless time can be shorter, thereby make operational indicator be able to satisfy.But there are two problems in this method; One be control unit wait for the another one control unit the set time value can along with in the system to main-slave control cell issue control command network element unit such as network element control unit (NCP, Network Control Process) upgrading and change; Two is wait order problems of two unit, and the wait relation in the specific system can be clear and definite, but this wait relation can not be generalized to all systems to form a kind of pervasive wait relation.
" a kind of heat backup method of crossed master/slave protection " that patent CN02160333 proposes can not solve above-mentioned two problems yet.
Three, summary of the invention
The objective of the invention is to propose the synchronous method of a kind of main-slave control cell signal; To solve in the prior art 1+1 backup; A control unit waits for that the time value of another control unit can change along with the upgrading of other unit in the system; And, the problem that the wait order of two control units is difficult to confirm.
The method that a kind of main-slave control cell signal of the present invention is synchronous may further comprise the steps:
Step 1, main when detecting first condition with control unit sends " synchronization request " sign for subsequent use control unit through communication line;
Step 2, subsequent use control unit detect first condition and receive main with control unit send " with
Step request " behind the sign, send " syn ack " sign with control unit to main;
Step 3, master remove " synchronization request " of sending to subsequent use control unit and indicate after receiving " syn ack " sign of subsequent use control unit transmission with control unit;
Step 4, main with control unit and or subsequent use control unit provide control signal.
Further, above-mentioned first condition is meant extraneous order or the condition that main-slave control cell is switched that trigger in the step 1 and 2.
Further; Lead with control unit after sending " synchronization request " sign to subsequent use control unit; Start a timer, if do not receive " syn ack " sign that subsequent use control unit sends, remove " synchronization request " sign that sends to subsequent use control unit behind the timing special time.
Further, subsequent use control unit sends " syn ack " sign back startup one timer to main with control unit, behind the timing special time, removes " syn ack " sign.
Adopt the method for the invention and device; Can make and active and standbyly handle simultaneously with control unit; Provide control signal simultaneously, make Service Processing Unit take corresponding action after, it is professional that to return to the harmless time short as much as possible from diminishing; Satisfied operational indicator to the requirement in professional debatable time, and had very strong operability arranged.
Four, description of drawings:
Fig. 1 is the annexation and the connection line figure of main-slave control cell and each business unit;
Fig. 2 main-slave control cell synchronized procedure chart.
Five, specific embodiment
To combine the practical implementation of detailed description of the drawings the present invention in SDH equipment below
Accompanying drawing 1 is the connection line figure of main-slave control cell and each business unit, connects through the highway line between the main-slave control cell, and main-slave control cell is connected through network with business unit.
Accompanying drawing 2 is main-slave control cell synchronized procedure charts, and the master detects first condition with control unit, sends " synchronization request " sign through communication line to subsequent use control unit; Circular wait then is up to " syn ack " sign of receiving subsequent use control unit loopback; After the master received " syn ack " sign with control unit, " synchronization request " sign of subsequent use control unit was given in clear to send; Provide control signal through after the necessary processing.
For subsequent use control unit, when it detects first condition, detect " synchronization request " sign of waiting for that main control unit is brought earlier; After receiving " synchronization request " sign, provide " syn ack " sign; Carrying out providing control signal after the necessary processing at last.
And for subsequent use control unit, it starts a timer after providing " syn ack " sign, after timing one specific period, " syn ack " is indicated removing
Supposing has two cross boards on the SDH equipment NE1, they are the main-slave control cell described in corresponding the present invention respectively, and cross board 1# is a main control unit, and cross board 2# is subsequent use control unit.Suppose that cross board #1 is positioned at 8# groove position, cross board #2 is positioned at 9# groove position.
Processing procedure is as follows:
Step 1:
Suppose the Forced Switch order of bill plate 1:N protection configuration about network management interface now, then NCP issues the order of veneer 1:N Forced Switch to the 8# cross board earlier.After the 8# cross board is received this order, can send " synchronization request " sign through HW alignment 9# cross board,
Step 2:
The NCP plate issues the Forced Switch order order of veneer 1:N protection configuration to the 9# cross board.After the 9# cross board is received this order, find that " synchronization request " that the 8# cross board is brought indicates set, " syn ack " sign of giving the 8# cross board immediately on the HW line is set to 0x5A,
Step 3:
The 8# cross board wait for to receive 9# cross board loopback " syn ack " sign, receive " syn ack " sign after, remove " synchronization request " sign earlier; If after waiting for long period of time, such as 200 milliseconds, the 8# cross board is not received " syn ack " sign, can finish to wait for yet, removes " synchronization request " sign.
Step 4:
8# cross board and 9# cross board carry out remaining processing, provide at last and switch control signal.
And
The timed task of 9# cross board is 0x5A in the value that detects " syn ack " sign of giving the 8# cross board; Then start timer; After 200 milliseconds of timing, the value that " syn ack " indicated is re-set as 0, so that issue veneer 1:N Forced Switch process of commands next time.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (3)
1. method that main-slave control cell signal is synchronous is characterized in that may further comprise the steps:
Control unit is under the 1+1 backup situation in step 1, the optical synchronization digital transmission system, main detects extraneously when triggering order that main-slave control cell switches or condition with control unit, sends the synchronization request sign for subsequent use control unit through communication line;
Step 2, subsequent use control unit detect extraneous trigger order or the condition that main-slave control cell switches and receive the main synchronization request sign that sends with control unit after, send the syn ack sign to main with control unit;
Step 3, master remove the synchronization request sign that sends to subsequent use control unit after receiving the syn ack sign of subsequent use control unit transmission with control unit;
Step 4, main with control unit and or subsequent use control unit provide control signal.
2. the synchronous method of a kind of main-slave control cell signal as claimed in claim 1; It is characterized in that: main with starting timer behind the control unit transmission synchronization request sign; If do not receive the syn ack sign that subsequent use control unit sends, remove the synchronization request sign that sends to subsequent use control unit behind the timing special time.
3. the synchronous method of a kind of main-slave control cell signal as claimed in claim 2 is characterized in that: subsequent use control unit starts timer after the master sends the syn ack sign with control unit, behind the timing special time, remove the syn ack sign.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101864523A CN101162960B (en) | 2007-11-13 | 2007-11-13 | Main-slave control cell signal synchronizing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101864523A CN101162960B (en) | 2007-11-13 | 2007-11-13 | Main-slave control cell signal synchronizing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101162960A CN101162960A (en) | 2008-04-16 |
| CN101162960B true CN101162960B (en) | 2012-03-07 |
Family
ID=39297809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101864523A Active CN101162960B (en) | 2007-11-13 | 2007-11-13 | Main-slave control cell signal synchronizing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101162960B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103279111B (en) * | 2013-06-09 | 2016-03-30 | 杭州和利时自动化有限公司 | The synchronous manner of execution of multi-control device, subsystem and system |
| CN104062896B (en) * | 2014-06-24 | 2016-06-01 | 北京航天自动控制研究所 | The redundancy implementation method of a kind of periodicity control synchronization signal |
| CN112332955B (en) * | 2021-01-06 | 2021-04-13 | 北京和利时系统工程有限公司 | Data synchronization method, system and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000207292A (en) * | 1999-01-20 | 2000-07-28 | Canon Inc | Unit and method for memory backup control |
| CN1109416C (en) * | 2000-04-25 | 2003-05-21 | 华为技术有限公司 | Method and equipment for swapping active with standby switches |
| CN1156995C (en) * | 2000-07-11 | 2004-07-07 | 深圳市中兴通讯股份有限公司 | Jitter-free change-over method and device for main and stand-by units capable of being hot plugged and unplugged in digital communication system |
| CN1764080A (en) * | 2005-11-15 | 2006-04-26 | 中兴通讯股份有限公司 | Device and method for realizing ASC |
| CN1804810A (en) * | 2005-01-14 | 2006-07-19 | 国际商业机器公司 | Method and system of redirection for storage access requests |
-
2007
- 2007-11-13 CN CN2007101864523A patent/CN101162960B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000207292A (en) * | 1999-01-20 | 2000-07-28 | Canon Inc | Unit and method for memory backup control |
| CN1109416C (en) * | 2000-04-25 | 2003-05-21 | 华为技术有限公司 | Method and equipment for swapping active with standby switches |
| CN1156995C (en) * | 2000-07-11 | 2004-07-07 | 深圳市中兴通讯股份有限公司 | Jitter-free change-over method and device for main and stand-by units capable of being hot plugged and unplugged in digital communication system |
| CN1804810A (en) * | 2005-01-14 | 2006-07-19 | 国际商业机器公司 | Method and system of redirection for storage access requests |
| CN1764080A (en) * | 2005-11-15 | 2006-04-26 | 中兴通讯股份有限公司 | Device and method for realizing ASC |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101162960A (en) | 2008-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107547281B (en) | Main/standby competition method, device and application equipment | |
| CN102769667A (en) | Method, equipment and system for generating ID | |
| CN102035687A (en) | Backup method and equipment for TCP connection | |
| CN101162960B (en) | Main-slave control cell signal synchronizing method | |
| CN105790965A (en) | Method and device for link switching and line card | |
| CN101777996B (en) | Device and method for realizing switching primary and spare services | |
| CN101110609A (en) | Method and system for implementing communication of main and standby module | |
| CN109088830A (en) | A kind of port status synchronous method and device | |
| CN101136711B (en) | Optical terminal service, clock, cross service high integration veneer service smooth switch system of SDH system | |
| CN103793300A (en) | Fast active-standby switching device in hot-standby system and active-standby switching method | |
| CN101193092A (en) | Network device and its data synchronization transmission method | |
| JPH10304437A (en) | Radio block synchronization monitor system and radio base station system adopting the monitor system | |
| CN101515835A (en) | Method and device for backing up across-board optical port | |
| CN100396045C (en) | Optical transmission network protection method | |
| JPH11112389A (en) | Switching system for line without hit and transmission device | |
| CN101937190A (en) | Modularized multisource input seamless switching method for satellite synchronous clock device | |
| CN101931467A (en) | External optical fiber Bypass equipment and optical signal channel switching method | |
| CN101136792A (en) | Network processor based communication protocol monitoring system and method | |
| CN102946408A (en) | Cloud computing system, device and method for providing application service | |
| CN203733107U (en) | Quick active/standby shifting device in active-standby system | |
| CN101615965B (en) | Method and device for switching master/backup clock | |
| CN1307814C (en) | Business mutual aid method for hierarchical communication system | |
| CN101335541A (en) | Method implementing data synchronization between main and spare circuit board | |
| CN100571154C (en) | The method of a kind of global data dynamic synchronization between multimode | |
| CN214256325U (en) | Broadcast three-level emergency system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20080416 Assignee: SHENZHEN ZTE MICROELECTRONICS TECHNOLOGY CO., LTD. Assignor: ZTE Corporation Contract record no.: 2017440020015 Denomination of invention: Main-slave control cell signal synchronizing method Granted publication date: 20120307 License type: Common License Record date: 20170310 |
|
| EE01 | Entry into force of recordation of patent licensing contract |