CN1777056A - Single-chip protection switching device - Google Patents
Single-chip protection switching device Download PDFInfo
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- CN1777056A CN1777056A CN 200410091085 CN200410091085A CN1777056A CN 1777056 A CN1777056 A CN 1777056A CN 200410091085 CN200410091085 CN 200410091085 CN 200410091085 A CN200410091085 A CN 200410091085A CN 1777056 A CN1777056 A CN 1777056A
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- veneer
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Abstract
The invention is in use for protecting single board of having outgoing lines. The parts to be protected include following units: protection boards in use for replacing boards to be protected when fault occurs on the board to be protected; spare external interface configured for external interface of single board to be protected; outgoing line for connection between spare external interface and external interface of single board to be protected; fault detection unit in use for detecting operating state of single board to be protected; connection unit in use for connecting single board to be protected with its external interface in normal condition, and for rearrangement between external interface of single board to be protected and spare external interface. Thus, implementation procedure for protecting single board is not restricted by the wiring of backboard.
Description
Technical field
The present invention relates to the single-chip protection technology in the communication equipment, especially relate to a kind of single-chip protection switching device.
Background technology
In the existing communication system, be to peg graft by the polylith veneer to form as communication equipments such as some core switch, can intercom mutually between each veneer, also can communicate by external interface simultaneously with the external world.Therefore the veneer in these communication equipments is protected; particularly service processing board is protected; make service processing board when breaking down, can in time switch on the service processing board of backup and work on, this will play important effect to communication stability.
See also Fig. 1, this figure is in the existing communication system, the structural representation of inner each veneer of communication equipment; Veneer A, board B, veneer C, veneer E, veneer F and veneer G represent service processing board among Fig. 1, are used to finish all kinds of service processing function, and these service processing boards are inserted in the sub-frame by corresponding connector.Service processing board generally has two class interfaces: a kind of be by connector that form with interface system, when service processing board is inserted on the sub-frame of system, the interface that forms by this connector come and system between carry out information interaction; Another kind is an external interface, the implementation of external interface comprises two kinds of situations: first kind is to utilize some dedicated connectors (3 connectors above the veneer G as shown in Figure 1) that have on the service processing board, transmission mediums such as extraneous cable, optical cable directly are inserted on these dedicated connectors, thereby realize the information exchange between the external world and the service processing board; Second kind is owing to the limited reason in space on the Handle Bar of service processing board, the connector of veneer external interface is not placed on the Handle Bar (plug of veneer on backboard for convenience, all has a small panel on each veneer, when veneer was inserted on the backboard, this panel can be seen outside; The handle of general single-board insert-pull and external interface all can be placed on this Handle Bar) on, be used for finishing on the outlet board of external interface function specially but be placed on, veneer a shown in Figure 1, veneer b and veneer c are respectively the outlet boards of service processing board A, service processing board B and service processing board C, service processing board just can be finished by the connector on the outlet board with extraneous information interaction like this, transmission mediums such as the connector on the outlet board can patch cable, optical fiber.In addition, service processing board E and F only have internal system interface among Fig. 1, promptly have by carrying out the interface of information interaction between connector and the system, and do not have external interface.Actual communication systems is high to the reliability requirement of service processing board, is very necessary so service processing board is taked safeguard measure protection.
At present, the protection scheme of switching that proposes at service processing board generally all is aimed at the service processing board that do not have external interface, promptly generally taked the service processing board of safeguard measure generally not have the outer outlet that patches on external interface, switch in the scheme in the protection that the service processing board that does not have outer outlet is proposed, the protection veneer has the repertoire of protected veneer, promptly protects veneer to preserve whole business configuration of protected veneer; When protected veneer was working properly, the business configuration and the guard mode of protection veneer were irrelevant, can carry out the task of self separately; When protected veneer breaks down, replace protected veneer to carry out Business Processing by the protection veneer, at this moment, the protection veneer can not be carried out the task of self originally, but replace protected veneer work.Switch under the principle in this protection, a block protection veneer can be used for protecting a protected veneer, also can be used for protecting the protected veneer of polylith, promptly forms 1: 1 or 1: the N protected mode.Wherein under 1: 1 protected mode, can protect mutually between protection veneer and the protected veneer, improve reliability of system operation effectively; 1: under the N protected mode, synchronization only allows a protected veneer and breaks down, if the protected veneer of polylith breaks down simultaneously, the protection veneer can only be protected a highest protected veneer of its medium priority.
To sum up; prior art does not realize that the veneer that has outer outlet (comprising service processing board and control veneer) is proposed a kind of effective protection switches scheme; and just switch processing scheme at not proposed to protect with the veneer of outer outlet; and because will not pass through the backboard cabling with carrying out information interaction between the veneer of outer outlet; so thisly switch scheme will be subjected to the backboard cabling in implementation procedure restriction at the protection that does not propose with the veneer of outer outlet, it realizes that flexibility is not high.
Summary of the invention
The technical problem to be solved in the present invention is to propose a kind of single-chip protection switching device that can protect the veneer that has outer outlet, so that the implementation procedure of single-chip protection is not subjected to the restriction of backboard cabling.
For addressing the above problem, the present invention proposes a kind of single-chip protection switching device, described device is used for the veneer that has outer outlet is protected, and comprising:
Be used for when protected veneer breaks down, replace the protection veneer of protected veneer work;
Backup external interface for the configuration of the external interface of protected veneer;
The outer outlet that is used to connect described backup external interface and protects the external interface of veneer;
Be used to detect the fault detection unit of protected single-board operation state; And
Be used for detection information according to fault detection unit; when described protected veneer is working properly; realize being connected between protected veneer and its external interface; and when protected veneer broke down, what be connected between the external interface of realizing protected veneer and its backup external interface switched linkage unit.
The business of wherein said protection veneer configuration is professional identical with described protected veneer configuration.And described protection veneer is in idle condition when protected veneer is working properly.
Wherein said protection veneer disposes the business of protected veneer, also disposes the business of self carrying out.And described protection veneer is carried out the business of self when protected veneer is working properly.
Described outer outlet is optical fiber, coaxial cable or twisted-pair feeder.
The described linkage unit of switching is that switch is switched matrix or relay is switched matrix.
Described external interface is arranged on the outlet board of veneer, or is arranged on the Handle Bar of veneer.
The allocation ratio of described protection veneer and protected veneer is 1: 1 or 1: N, described N are the natural number more than or equal to 2.
Described veneer is that Ethernet service is handled veneer, circuit veneer or branch road veneer.
Single-chip protection switching device of the present invention can reach following beneficial effect:
Because the present invention has the external interface of the protected veneer of outer outlet to have disposed the backup external interface; And use outer outlet to connect described backup external interface and the external interface of protecting veneer; Like this, detect protected veneer when working properly, use to connect switch unit and realize being connected between protected veneer and its external interface, carry out Business Processing to use protected veneer itself at fault detection unit; And when fault detection unit detects protected veneer and breaks down, use to connect being connected between external interface that switch unit realizes protected veneer and its backup external interface, protect veneer to carry out Business Processing to switch to use.Thereby realized purpose that the veneer that has outer outlet is protected, avoided the implementation procedure of Board Protection Switching to be subjected to the restriction of backboard cabling, and the position between protected veneer and the protection veneer is not had specific (special) requirements, so it has realized that flexibility is higher.
Description of drawings
Fig. 1 is in the existing communication system, the structural representation of inner each veneer of communication equipment;
Fig. 2 is the concrete composition structural representation of single-chip protection switching device of the present invention;
Fig. 3 is that single-chip protection switching device of the present invention is applied to the schematic diagram on the veneer with outlet board;
Fig. 4 is that single-chip protection switching device of the present invention is applied in the structural representation on the veneer of the direct outlet of Handle Bar;
Fig. 5 utilizes single-chip protection switching device of the present invention to realize the structural representation that different veneers are protected mutually;
Fig. 6 utilizes single-chip protection switching device of the present invention to realize 1: the structural representation that the N protection is switched;
Fig. 7 is that single-chip protection switching device of the present invention realizes 1 between different veneers: the schematic diagram of scheme is switched in the N protection.
Embodiment
The present invention switches scheme at the protection that the veneer with outer outlet proposes; outer outlet on the general veneer is to draw by outlet board on the veneer or Handle Bar; such Board Protection Switching scheme can realize protected veneer and the information interaction of protection between the veneer by outer outlet; and do not need to realize protected veneer and the information interaction of protection between the veneer by the backboard cabling; therefore this protection scheme of switching has the advantage that is not subjected to the restriction of backboard cabling; and the position relation between protected veneer and the protection veneer there are not specific (special) requirements so its implementation procedure simple and flexible.
Be explained in detail below in conjunction with the embodiment of each accompanying drawing single-chip protection switching device of the present invention.
See also Fig. 2, this figure is the concrete composition structural representation of single-chip protection switching device of the present invention; Wherein the scheme that proposes of the present invention at be that veneer is protected, and veneer mainly comprises service processing board and control veneer etc., mainly is the example technical scheme of the present invention that is elaborated below with the service processing board.As shown in Figure 2, wherein protected service processing board 1 and for the protection service processing board 4 of protected service processing board 1 configuration all be service processing board with outer outlet; Among Fig. 2, their outer outlet is to draw by the outlet board of self; Wherein single-chip protection switching device specifically comprises:
Backup external interface 22 (in like manner, backup external interface 22 also is arranged on the outlet board 2 of protected service processing board 1) for the configuration of the external interface 21 (external interface 21 is arranged on the outlet board 2 of protected service processing board 1) of protected service processing board 1;
Be used to connect the outer outlet 6 of the external interface 51 (external interface 51 is arranged on the outlet board 5 of protection service processing board 4) that backs up external interface 22 and protection service processing board 4, outer outlet 6 is used to make between backup external interface 22 and the external interface 51 can carry out information interaction, and wherein outer outlet 6 can be but be not limited to transmission mediums such as optical fiber, coaxial cable or twisted-pair feeder;
Be used for detecting fault detection unit (the figure fault detection unit that do not draw of protected service processing board 1 operating state, fault detection unit can be realized by software usually, also can realize, generally come the work state information of each service processing board of unified monitoring) by system by concrete hardware circuit; And
Be used for detection information according to above-mentioned fault detection unit, under protected service processing board 1 situation working properly, realize being electrically connected (solid line connection status among the figure) between protected service processing board 1 and its external interface 21, and under the situation that protected service processing board 1 breaks down, what be electrically connected (dotted line connection status among the figure) between the external interface 21 of realizing protected service processing board 1 and its backup external interface 22 switches linkage unit 23; When protected service processing board 1 is working properly, switches linkage unit 23 and can connect protected service processing board 1 and its external interface 21 like this, make protected service processing board 1 can carry out Business Processing; When protected service processing board 1 breaks down; switch linkage unit 23 and can connect external interface 21 and its backup external interface 22; and back up simultaneously external interface 22 by outer outlet 6 with the protection service processing board 4 outlet board 5 on external interface 51 be connected; therefore just can realize making protection service processing board 4 to replace protected service processing board 1 to carry out the purpose of Business Processing, thereby reach the function of Board Protection Switching.
Wherein switch linkage unit 23 and can use switch to switch the matrix realization, also can use relay to switch matrix and realize, can also use fpga chip to realize, or use optical switch matrix and other software and hardware modes to realize.
Outer outlet shown in Fig. 2 is to draw by the outlet board of service processing board, and in addition in actual applications, outer outlet also can be drawn by the Handle Bar of service processing board.
Single-chip protection switching device of the present invention is on the outlet board (or Handle Bar) at protected service processing board in fact, for each external interface increases by row's backup external interface and switches linkage unit.If many outer outlets need protection, linkage unit is switched in every corresponding one of outer outlet, and these are switched the linkage unit composition and switch matrix.As shown in Figure 2, in two frame of broken lines be the outlet board of protection service processing board 1 and protected service processing board 4 correspondences respectively.As seen from Figure 2, protection service processing board 4 and outlet board 5 thereof have increased backup external interface 22 on the outlet board 2 of protected service processing board 1 and switched linkage unit 23, and protected service processing board 1 are without any variations without any variation.
See also Fig. 3, this figure is that single-chip protection switching device of the present invention is applied to the schematic diagram on the veneer with outlet board; As shown in Figure 3; suppose that veneer A, B are respectively protected service processing board and protection service processing board; here the outlet board a to veneer A transforms; making has increased by row's backup external interface and has switched linkage unit on it; among the figure on the outlet board a each grid of the left side one row represent an external interface; the right side one row are represented as the backup external interface of each external interface configuration, switch linkage unit by one between each external interface and its backup external interface and are connected.When configuration service, board B also will dispose all business that veneer A is born except the business that disposes self like this, and as veneer A and B all during operate as normal, the both normally finishes the service processing function of self; When veneer A broke down, fault detection unit detected the fault of veneer A, and the linkage unit of switching that disposes on veneer A sends triggering signal, and the service signal on the outlet board a directly is transferred on the board B by the protection switch unit of configuration.At this moment board B is no longer carried out the task of self originally, but begins to carry out the task of veneer A, thereby purpose is switched in the protection of having finished veneer A.Can embody thus, the implementation procedure of Board Protection Switching scheme of the present invention can not be subjected to any restriction of backboard cabling, only requires and protects service processing board institute slot potential energy to realize that enough fully the repertoire of protected service processing board gets final product.In addition; as long as protection service processing board institute slot potential energy is realized the repertoire of protected service processing board enough fully; to the relative position of both institute slot positions in backboard without any restriction; promptly two veneers can be inserted in the adjacent slot position in the backboard, also can be inserted in groove position far away at interval.Therefore, the present invention program's implementation procedure is not subjected to the restriction of backboard cabling and the inserting groove position has been guaranteed the high degree of flexibility of its realization without specific (special) requirements.
Foregoing description single-chip protection switching device of the present invention in the applicable cases that has on the service processing board of outlet board, the narration applicable cases of single-chip protection switching device of the present invention on the service processing board of the direct outlet of Handle Bar below.
See also Fig. 4, this figure is that single-chip protection switching device of the present invention is applied in the structural representation on the veneer of the direct outlet of Handle Bar; Veneer A and B are the service processing boards of the direct outlet of Handle Bar among the figure; suppose that veneer A, B are respectively protected service processing board and protection service processing board; the Handle Bar of veneer A is transformed on original basis; be each external interface and increased by a row backup external interface and switched linkage unit that (each grid among the figure in the Handle Bar left side one row grid of veneer A is represented an external interface; each grid in the one row grid of the right side is represented a backup external interface, and each external interface is connected by switching linkage unit with its backup external interface).When the veneer A operate as normal, board B can be carried out the task of self like this; When veneer A breaks down; fault detection unit detects the fault message of veneer A; order is switched in the linkage unit transmission of switching on the veneer A Handle Bar; correspondingly switch linkage unit and switch connection; make that board B begins to carry out the business that pre-configured veneer A is born, thereby finish the defencive function of board B veneer A.
Utilize single-chip protection switching device of the present invention can also realize that different business handles the mutual defencive function between the veneer, see also Fig. 5, this figure utilizes single-chip protection switching device of the present invention to realize that different business handles the structural representation that veneer is protected mutually; According to single-chip protection switching device of the present invention the outlet board of veneer A and B has been carried out similar transformation respectively among the figure; when each service processing board is carried out business configuration; each service processing board disposes the business that method, single is born respectively; when wherein any one veneer broke down, another veneer just can be protected it like this.For example: when service processing board A breaks down; the linkage unit of switching on its outlet board A is switched and is connected to dotted line position; realize that outlet board A goes up the electrical connection of external interface and backup external interface; simultaneously the linkage unit of switching on the outlet board B of service processing board B is switched and is connected to its dotted line position, so just the purpose that can protect service processing board A by two outer outlets realization service processing board B that back up between the external interfaces.Service processing board A is similar to the principle that service processing board B protects, and repeats no more here.
The foregoing description has been introduced and has been utilized single-chip protection switching device of the present invention to realize the situation that protection in 1: 1 is switched, and promptly protecting the ratio that disposes between service processing board and the protected service processing board is 1: 1.Utilize single-chip protection switching device of the present invention can also realize 1: the N protection is switched, and promptly protecting the ratio that disposes between service processing board and the protected service processing board is 1: N, wherein N is the natural number more than or equal to 2.
See also Fig. 6, this figure utilizes single-chip protection switching device of the present invention to realize 1: the structural representation that the N protection is switched; The outer outlet that the outlet board A of protected service processing board A and B is connected with backup external interface on the B among the figure all is connected to the external interface on the outlet board C of same protection service processing board C.Promptly 1: in the N protection switchover mode, the external interface of protection service processing board needs the outer outlet of all protected service processing boards is inserted, so that can all protect the protected service processing board of N piece.When carrying out business configuration, service processing board C is except will disposing the business that self will bear in protection, also will dispose the business of all service processing boards that need protection, like this as veneer A and B all during operate as normal, and the task of veneer C execution self; In veneer A or B, there is a veneer to break down, fault detection unit sends and switches order to the linkage unit of switching of the veneer that breaks down, the linkage unit of switching of the veneer that breaks down is switched connection, makes veneer C replace the veneer that breaks down and executes the task; After veneer C receives and switches order, no longer carry out the task of self, begin to carry out the Business Processing task of protected service processing board, so just realized 1: N protects switch function.Certainly, 1: under the N protection switchover mode, when the protected service processing board of polylith broke down simultaneously, the protection service processing board can only be protected a highest veneer of priority.
See also Fig. 7, this figure is that single-chip protection switching device of the present invention realizes 1 between different business processing veneer: the schematic diagram of scheme is switched in the N protection; Suppose that veneer A and board B are the protection service processing boards that needs protection; veneer C is the protection service processing board that is used for veneer A and B are provided protection; as seen the outer outlet of protected service processing board A and B all is connected on the protection service processing board C, thereby realizes the purpose veneer A and B protected simultaneously by veneer C.
To sum up; utilize single-chip protection switching device of the present invention no matter to realize 1: 1 protection switchover mode; still realize 1: N protects switchover mode; protection service processing board and protected service processing board position, institute slot position on backboard can be adjacent; also can be non-adjacent, therefore protect service processing board institute's slot in sub-frame to put and to select flexibly according to system configuration.Simultaneously in order to realize defencive function; line between protected service processing board and the protection service processing board; can be identical with the outer outlet of veneer; also can select the type, cabling mode etc. of outer outlet flexibly, as long as it is single to realize that signal is normally inserted the protection Business Processing by protected service processing board according to actual conditions.
Wherein, above-mentioned service processing board can but to be not limited to be that Ethernet service in the communication equipment is handled veneer, circuit veneer or branch road veneer.
Similar for the performance that single-chip protection switching device of the present invention is applied on control veneer or the other types veneer to the situation that this scheme is applied on the service processing board, repeat no more here.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1, a kind of single-chip protection switching device is characterized in that, described device is used for the veneer that has outer outlet is protected, and comprising:
Be used for when protected veneer breaks down, replace the protection veneer of protected veneer work;
Backup external interface for the configuration of the external interface of protected veneer;
The outer outlet that is used to connect described backup external interface and protects the external interface of veneer;
Be used to detect the fault detection unit of protected single-board operation state; And
Be used for detection information according to fault detection unit; when described protected veneer is working properly; realize being connected between protected veneer and its external interface; and when protected veneer broke down, what be connected between the external interface of realizing protected veneer and its backup external interface switched linkage unit.
2, single-chip protection switching device according to claim 1 is characterized in that, the business of described protection veneer configuration is professional identical with described protected veneer configuration.
3, single-chip protection switching device according to claim 2 is characterized in that, described protection veneer is in idle condition when protected veneer is working properly.
4, single-chip protection switching device according to claim 1 is characterized in that, described protection veneer disposes the business of protected veneer, also disposes the business of self carrying out.
5, single-chip protection switching device according to claim 4 is characterized in that, described protection veneer is carried out the business of self when protected veneer is working properly.
6, single-chip protection switching device according to claim 1 is characterized in that, described outer outlet is optical fiber, coaxial cable or twisted-pair feeder.
7, single-chip protection switching device according to claim 1 is characterized in that, the described linkage unit of switching is that switch is switched matrix or relay is switched matrix.
8, single-chip protection switching device according to claim 1 is characterized in that, described external interface is arranged on the outlet board of veneer, or is arranged on the Handle Bar of veneer.
9, single-chip protection switching device according to claim 1 is characterized in that, the allocation ratio of described protection veneer and protected veneer is 1: 1 or 1: N, described N are the natural number more than or equal to 2.
According to claim 1,2,3,4,5,8 or 9 described single-chip protection switching devices, it is characterized in that 10, described veneer is that Ethernet service is handled veneer, circuit veneer or branch road veneer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100910855A CN100356707C (en) | 2004-11-16 | 2004-11-16 | Single-chip protection switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100910855A CN100356707C (en) | 2004-11-16 | 2004-11-16 | Single-chip protection switching device |
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| Publication Number | Publication Date |
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| CN1777056A true CN1777056A (en) | 2006-05-24 |
| CN100356707C CN100356707C (en) | 2007-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100910855A Expired - Fee Related CN100356707C (en) | 2004-11-16 | 2004-11-16 | Single-chip protection switching device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008011835A1 (en) * | 2006-07-21 | 2008-01-31 | Huawei Technologies Co., Ltd. | A device and method of implementing backup for e1/t1 interface |
| WO2011020331A1 (en) * | 2009-08-21 | 2011-02-24 | 中兴通讯股份有限公司 | Branch cable and device which uses the same |
| CN105656711A (en) * | 2014-12-02 | 2016-06-08 | 中兴通讯股份有限公司 | Signal detecting method and device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0787188A (en) * | 1993-09-10 | 1995-03-31 | Oki Electric Ind Co Ltd | Backup system for repeater used in communication system |
| US5719917A (en) * | 1995-12-26 | 1998-02-17 | Lucent Technologies Inc. | Circuit for activating back-up lines |
| ZA988380B (en) * | 1997-09-16 | 1999-03-16 | Siemens Ag | Communications device for transmission of message signals |
| DE19832039A1 (en) * | 1998-07-16 | 2000-01-20 | Alcatel Sa | Node of a point-to-multipoint network |
| CN1269642A (en) * | 2000-04-26 | 2000-10-11 | 西安交通大学 | Ringing current generator standy-by method and device |
-
2004
- 2004-11-16 CN CNB2004100910855A patent/CN100356707C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008011835A1 (en) * | 2006-07-21 | 2008-01-31 | Huawei Technologies Co., Ltd. | A device and method of implementing backup for e1/t1 interface |
| CN100479341C (en) * | 2006-07-21 | 2009-04-15 | 华为技术有限公司 | A device and method for the E1/T1 interface backup |
| WO2011020331A1 (en) * | 2009-08-21 | 2011-02-24 | 中兴通讯股份有限公司 | Branch cable and device which uses the same |
| CN105656711A (en) * | 2014-12-02 | 2016-06-08 | 中兴通讯股份有限公司 | Signal detecting method and device |
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| CN100356707C (en) | 2007-12-19 |
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Effective date of registration: 20170920 Address after: Jixi City, Heilongjiang province 158100 Tiebei Jiguan District Committee of 5 groups Patentee after: Yang Shijuan Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: Huawei Technologies Co., Ltd. |
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Granted publication date: 20071219 Termination date: 20171116 |