CN101340255A - Apparatus and method for realizing connection protection of low order channel sub-network - Google Patents
Apparatus and method for realizing connection protection of low order channel sub-network Download PDFInfo
- Publication number
- CN101340255A CN101340255A CNA200810210506XA CN200810210506A CN101340255A CN 101340255 A CN101340255 A CN 101340255A CN A200810210506X A CNA200810210506X A CN A200810210506XA CN 200810210506 A CN200810210506 A CN 200810210506A CN 101340255 A CN101340255 A CN 101340255A
- Authority
- CN
- China
- Prior art keywords
- processing unit
- protection
- time
- channel
- cross
- 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.)
- Granted
Links
Images
Landscapes
- Time-Division Multiplex Systems (AREA)
Abstract
The invention provides a low-order channel subnetwork connection protection device and a method thereof. The low-order channel subnetwork connection protection device comprises a light panel, a time division cross processing unit and a branch processing unit. The method includes the following steps: A. a main control board sends the calculated cross protection relationship to the time division cross processing unit; B. according to the received cross protection relationship, the time division cross processing unit configures chips; C. the time division cross processing unit detects the alarms of every channel, and according to the current signal quality of the active-standby channel, every protection group implements protection and switching. The low-order channel subnetwork connection protection device and the method thereof have the advantages of easy realization of the protection of the low-order channel from light panel cross to a branch board and low cost.
Description
Technical field
The present invention relates to a kind of apparatus and method that realize the low order channel SNCP; relate in particular at Optical synchronization digital transmission network (SynchronosDigitalHierarchy; be called for short SDH) transmission field, a kind of apparatus and method of passage SNCP at a low price that realize of proposition.
Background technology
SNCP has for example vc4 etc. of higher order path and for example vc11, the vc12 etc. of low order channel, belongs to linear VC trail protection, is a kind of special protection mechanism that can be used on any physical topological structure.As shown in Figure 1, tabula rasa is exactly the Line Processing Unit in the SDH equipment, and tributary card is exactly the branch road processing unit in the SDH equipment.The low order SNCP of SDH equipment generally has tabula rasa to be crossed to the protection of the low order channel of tabula rasa, and tabula rasa is crossed to the protection etc. of the low order channel of tributary card, and the former generally is placed on the time-division cross processing unit and realizes that the latter generally is placed on the tributary card and realizes.But under some special occasions, because hardware resource limitations, or the requirement of bandwidth capacity, if on tributary card, realize,, perhaps bring very high cost with the trouble that becomes very.
Summary of the invention
Technical problem to be solved by this invention provides a kind of device of realizing the low order channel SNCP, described device solves tabula rasa be crossed to the protection of the low order channel of tributary card, the technical problem that on time-division cross processing unit, realizes.
In order to solve the problems of the technologies described above, the invention provides a kind of realization low order channel SNCP device, comprise tabula rasa, time-division cross processing unit, branch road processing unit, described device comprises at least two tabula rasas, and described time-division cross processing unit has at least two signalling channels inlets and a signalling channel to export, be used for the low order channel of business is intersected, described branch road processing unit has signalling channel inlet and signalling channel outlet, is used for the service signal conversion;
First signal is transferred to the receiving port of first tabula rasa, after the conversion of first tabula rasa, be transferred to the signalling channel outlet of time-division cross processing unit through first signalling channel inlet of described time-division cross processing unit, send through the signalling channel inlet and the channel outlet of described branch road processing unit again;
Secondary signal is transferred to the receiving port of second tabula rasa, after the conversion of second tabula rasa, be transferred to the signalling channel outlet of time-division cross processing unit through the secondary signal feeder connection of described time-division cross processing unit, send through the signalling channel inlet and the channel outlet of described branch road processing unit again.
A kind of device of realizing the low order channel SNCP of the present invention, the protection that makes tabula rasa be crossed to the low order channel of tributary card realizes easily, has reduced cost.
Another technical problem to be solved by this invention provides a kind of method that realizes the low order channel SNCP, and described method has solved the protection that tabula rasa is crossed to the low order channel of tributary card, the technical problem that realizes on time-division cross processing unit.
In order to solve the problems of the technologies described above, the invention provides a kind of realization low order channel SNCP method, comprise the steps:
A, master control borad will calculate good cross protection relation and send to time-division cross processing unit;
B, described time-division cross processing unit concerns configuring chip according to the cross protection of receiving;
C, described time-division cross processing unit detects the alarm of each passage, and each protection group is according to the good and bad situation of the signal of current primary channel, and execute protection is switched.
Further, master control borad will calculate good cross protection relation and send to time-division cross processing unit with communication mode.
Further, also comprise the steps: before the steps A
Steps A 1, user send to the network element master control borad of boss's frame by the protection business that network management configuration will realize;
After steps A 2, network element master control borad are received the business configuration bag,, protect cross reference by calculating the desired time slot of time-division chip according to the configuration information that webmaster sends.
Further, the user sends to the protection business that configures the network element master control borad of boss's frame with communication mode.
Further, the software processing module of the processing unit software section of network element master control borad calculates desired time slot protection cross reference.
A kind of method that realizes the low order channel SNCP of the present invention, the protection that makes tabula rasa be crossed to the low order channel of tributary card realizes easily, has reduced cost.
Description of drawings
Fig. 1 is the schematic diagram that the protection of the low order channel that tabula rasa is crossed to tributary card in the prior art realizes at tributary card.
Fig. 2 is the schematic diagram that the protection of the tabula rasa of the present invention low order channel that is crossed to tributary card realizes in time-division cross processing unit.
Fig. 3 is the flow chart of realization low order channel SNCP method of the present invention.
Embodiment
When realizing that tabula rasa is crossed to the protection of low order channel of tributary card; when hardware resource limitations; or bandwidth capacity is when not enough; the SNCP of realizing low order channel on the branch road processing unit can not meet the demands; and under the enough condition of time-division cross processing cell capability; the present invention changes traditional implementation method, and SNCP is placed on time-division cross processing unit realization, can well deal with problems.
SDH transmission equipment among the present invention includes boss's frame and extended subrack, and described boss's frame is two sub-framves that separate of same network element with extended subrack, and described extended subrack is an other sub-frame of relative and boss's frame.
Usually, extended subrack requires the business of 5G up and down, and the SNCP of all low order channels can be provided simultaneously, and boss's frame of design is connected with optical fiber by two 2.5G light mouths with extended subrack usually.If at this moment the SNCP of low order channel is realized on the tributary card of extended subrack; just be difficult to satisfy the requirement of bandwidth 5G; and the time divisional processing unit of boss's frame provides enough time-division cross-capacities; therefore the present invention is crossed to tabula rasa the protection of the low order channel of tributary card; in time-division cross processing unit realization, with regard to good this problem that solved.
A kind of realization low order channel SNCP device provided by the present invention as shown in Figure 2, comprises tabula rasa, time-division cross processing unit, branch road processing unit.
Described tabula rasa is two at least, can be a plurality of, is used for converting the laser signal that the light oral-lateral transmits to the signal of telecommunication.
Described time-division cross processing unit has at least two signalling channels inlets and a signalling channel to export, described branch road processing unit has signalling channel inlet and a signalling channel exports, and is used for the processing unit that the low order channel to synchronous digital hierarchy SDH or SONET business intersects.
Described branch road processing unit, have signalling channel inlet and signalling channel outlet, be with PDH (Pseudo-synchronous Digital Hierarchy) PDH service signal through mapping, the multiplexing SDH of converting to or SONET business, and reciprocal that SDH or SONET is professional through demultiplexing with remove to shine upon the interface processing unit that is converted to the PDH business.
First light signal is by the receiving port of Optical Fiber Transmission to first tabula rasa, after described first tabula rasa converts the signal of telecommunication to, be transferred to the signalling channel outlet of time-division cross processing unit through first signalling channel inlet of described time-division cross processing unit, send through the signalling channel inlet and the channel outlet of described branch road processing unit again;
Second light signal is by the receiving port of Optical Fiber Transmission to second tabula rasa, after described second tabula rasa converts the signal of telecommunication to, be transferred to the signalling channel outlet of time-division cross processing unit through the secondary signal feeder connection of described time-division cross processing unit, send through the signalling channel inlet and the channel outlet of described branch road processing unit again.
Realization low order channel SNCP method of the present invention comprises the steps:
The first step: the protection business that the user will realize by network management configuration, and, send to the network element master control borad of boss's frame by network interface with a kind of communication mode;
Second step: after the network element master control borad of boss's frame of SDH equipment is received the business configuration bag, the software processing module of processing unit software section, according to the configuration information that webmaster sends, protect cross reference by calculating the desired time slot of time-division chip, and distribute the protection cross reference;
The 3rd step: boss's frame network element master control borad will calculate good time slot cross protection and concern with a kind of communication mode and send to time-division cross processing unit, and no longer be the branch road processing unit;
The 4th step: the time-division cross processing unit on boss's frame is configured chip according to the protection cross reference of receiving, each passage of protection group is at this moment set up;
The 5th step: the time-division cross processing unit on boss's frame constantly detects the alarm of each passage, and each protection group is according to the good and bad situation of the signal of current primary channel, and execute protection is switched.Described primary channel can be the first passage inlet of cross processing unit and the line of channel outlet, also can be the second channel inlet of cross processing unit and the line of channel outlet.
Set up to this complete path protection relation, and can move normally.The low-order service of so complete following branch road just can be realized the protection mechanism that subnet connects, and such design can improve in this system the extended subrack capacity of branch service up and down.
Beneficial effect of the present invention is: the present invention is those bandwidth capacitys or hardware resource when limited, The SNCP of realizing low order channel on the plate of road can not meet the demands, and propose at the time division and crossing place The solution that the reason unit is realized. Can well meet the demands.
Claims (6)
1, a kind of realization low order channel SNCP device comprises tabula rasa, time-division cross processing unit, branch road processing unit, it is characterized in that
Described device comprises at least two tabula rasas, described time-division cross processing unit, have two signalling channel inlets and a signalling channel outlet at least, be used for the low order channel of business is intersected, described branch road processing unit, have signalling channel inlet and signalling channel outlet, be used for the service signal conversion;
First signal is transferred to the receiving port of first tabula rasa, after the conversion of first tabula rasa, be transferred to the signalling channel outlet of time-division cross processing unit through first signalling channel inlet of described time-division cross processing unit, send through the signalling channel inlet and the channel outlet of described branch road processing unit again;
Secondary signal is transferred to the receiving port of second tabula rasa, after the conversion of second tabula rasa, be transferred to the signalling channel outlet of time-division cross processing unit through the secondary signal feeder connection of described time-division cross processing unit, send through the signalling channel inlet and the channel outlet of described branch road processing unit again.
2, a kind of realization low order channel SNCP method comprises the steps:
A, master control borad will calculate good cross protection relation and send to time-division cross processing unit;
B, described time-division cross processing unit concerns configuring chip according to the cross protection of receiving;
C, described time-division cross processing unit detects the alarm of each passage, and each protection group is according to the good and bad situation of the signal of current primary channel, and execute protection is switched.
3, method as claimed in claim 2 is characterized in that, master control borad will calculate good cross protection relation and send to time-division cross processing unit with communication mode.
4, method as claimed in claim 3 is characterized in that, also comprises the steps: before the steps A
Steps A 1, user send to the network element master control borad of boss's frame by the protection business that network management configuration will realize;
After steps A 2, network element master control borad are received the business configuration bag,, protect cross reference by calculating the desired time slot of time-division chip according to the configuration information that webmaster sends.
5, method as claimed in claim 4 is characterized in that, the user sends to the protection business that configures the network element master control borad of boss's frame with communication mode.
6, method as claimed in claim 5 is characterized in that, the software processing module of the processing unit software section of network element master control borad calculates desired time slot protection cross reference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810210506XA CN101340255B (en) | 2008-08-13 | 2008-08-13 | Apparatus and method for realizing connection protection of low order channel sub-network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810210506XA CN101340255B (en) | 2008-08-13 | 2008-08-13 | Apparatus and method for realizing connection protection of low order channel sub-network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101340255A true CN101340255A (en) | 2009-01-07 |
| CN101340255B CN101340255B (en) | 2012-05-09 |
Family
ID=40214225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810210506XA Expired - Fee Related CN101340255B (en) | 2008-08-13 | 2008-08-13 | Apparatus and method for realizing connection protection of low order channel sub-network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101340255B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607298A (en) * | 2013-11-07 | 2014-02-26 | 广东电网公司电网规划研究中心 | Substation emergency channel switching method based on timeslot crossing configuration |
| CN107979433A (en) * | 2017-12-25 | 2018-05-01 | 苏州布罗安电子科技有限公司 | A kind of SDH Transmission systems |
| CN108462904A (en) * | 2017-11-22 | 2018-08-28 | 上海欣诺通信技术股份有限公司 | Hardware based protection group reverse method and optical communication equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403660C (en) * | 2004-09-04 | 2008-07-16 | 华为技术有限公司 | Dual-fiber optical multiplexing section sharing protective ring protecting method and its node device |
| CN100370702C (en) * | 2004-09-10 | 2008-02-20 | 华为技术有限公司 | Automatic protected switch system and method thereof |
| CN1645777B (en) * | 2005-01-10 | 2010-06-09 | 烽火通信科技股份有限公司 | Branching loop protective method and device |
-
2008
- 2008-08-13 CN CN200810210506XA patent/CN101340255B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607298A (en) * | 2013-11-07 | 2014-02-26 | 广东电网公司电网规划研究中心 | Substation emergency channel switching method based on timeslot crossing configuration |
| CN108462904A (en) * | 2017-11-22 | 2018-08-28 | 上海欣诺通信技术股份有限公司 | Hardware based protection group reverse method and optical communication equipment |
| CN107979433A (en) * | 2017-12-25 | 2018-05-01 | 苏州布罗安电子科技有限公司 | A kind of SDH Transmission systems |
| CN107979433B (en) * | 2017-12-25 | 2024-03-22 | 江苏黑马高科股份有限公司 | SDH transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101340255B (en) | 2012-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101378388B (en) | Method, system and equipment for transmitting passive optical network data | |
| EP2830261B1 (en) | Optical line terminal device and implementation method thereof | |
| US8374177B2 (en) | Network element for switching time division multiplex signals | |
| CN100373884C (en) | Switching device for telecommunication networks | |
| US8780897B2 (en) | Cross-connect system and cross-connect method | |
| CN108092734A (en) | Electric power data transmission equipment, system and detection method | |
| US6487223B1 (en) | SDH transmission apparatus with flexible system configuration | |
| CN106788856B (en) | A kind of full granularity of multi-service based on SDH and MSTP technology intersects intelligent cut-in method and system | |
| CN101340255B (en) | Apparatus and method for realizing connection protection of low order channel sub-network | |
| CN207588877U (en) | Electric power data transmission device | |
| CN101567743B (en) | Computation method and device for multiplex section sharing guard ring misconnection squelching table | |
| CN201994942U (en) | Multi-service access and transmission device | |
| US7260091B2 (en) | Transmission equipment having a packet switching function | |
| CN102546022A (en) | Transmission method of optical fiber transmission subsystem | |
| CN201690466U (en) | Framework of multi-service access platform (MSAP) | |
| CA2316642C (en) | Detection of previous section fail for a transparent tributary | |
| CN101345600A (en) | Method and system for implementing sub-wavelength passage sharing protection by electronic crossing mode | |
| CN100401728C (en) | A multi-speed optical signal interface board | |
| CN1992571B (en) | Muti-service separated SDH/SONET transmission equipment | |
| EP1701467B1 (en) | Tributary unit of synchronous digital hierarchy and sdh apparatus node | |
| CN101707730A (en) | Optical transport hierarchy node equipment and optical signal transport method | |
| CN111092689A (en) | Composite protocol optical transmission system | |
| CN100502258C (en) | Multi-optical port optical wavelength converting unit | |
| KR100256691B1 (en) | Optical trasmission system for arbitrary combination of tributaries | |
| CN201937590U (en) | Optical fiber transmission subsystem |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20170813 |