Background technology
Along with the development of data communication technology, data communication equipment (such as router, Ethernet switch etc.) provides increasing function and more and more higher performance.Although data communication equipment is of a great variety, from forming on the structure, middle and high end equipment all is made up of master control borad (active and standby two) and business board.Wherein, master control borad is responsible for providing the public function of entire equipment, and such as configuration management, Routing Protocol processing etc. are the equal of the manager of entire equipment.Business board is responsible for the business that provides external, for example business of interface business (such as Ethernet interface, atm interface) or certain dedicated functions (such as network security service etc.).On mechanical structure, veneers such as master control borad, business board all are installed on the backboard, as shown in Figure 1; On electric, backboard directly and master control borad and business board be electrically connected, two master control borads are connected with each other (dot by backboard and be connected) by backboard with business board, as shown in Figure 2.
In order to satisfy the certain user under the less situation of business function demand, wish that communicator has smaller size smaller and the more requirement of low price, the device of master control borad occurred simple business function is integrated into.With master control borad integrated interface business function is that example is illustrated, and please referring to Fig. 3, it is the schematic diagram that is electrically connected of the inner plate of prior art two data communication equipments.Integrated respectively business module (comprising interface chip and port P) with interface function on main control board and slave control board, this business module directly links to each other (representing directly to link to each other with solid line) by the holding wire on the master control borad with original main control module (comprising CPU or exchange chip) on its master control borad.If in communicator, also need independent business board, then they are electrically connected (dot by backboard and link to each other) with two master control borads respectively by backboard.
Above-mentioned communicator with integrated form master control borad, though satisfied the demand that volume is less, cost is relatively low, but when a certain master control borad was in stand-by state, the main control module on it did not participate in work, caused being subjected to that business module of its control can not participate in work.Like this, though have two business modules on two master control borads, at any one constantly, have only one can use (being on the main control board), another one can not be used (being on the slave control board), so service efficiency has only half, and utilance is lower.
Further, have only the port P1 on the main control board to have cable to be connected other equipment (shown in curve among Fig. 3) with P2 usually, P3 on the slave control board and P4 be work not, does not also have the wiring cable.When main control board breaks down, can carry out active and standby switching automatically, slave control board is enabled.At this moment, port P1 and P2 can not use, and port P3 and P4 begin to devote oneself to work, but cable still is connected on port P1 and the P2, unless there are operating personnel to the scene cable reconfiguration that is connect on P1 and the P2 to be gone on P3 and P4.But generally speaking, equipment occurs unusually, when masterslave switchover takes place, does not often have operating personnel at the scene, therefore reconfiguration cable in time, so in the time of will causing masterslave switchover, the port on two master control borads all can not use, and the situation of service disconnection occurs.
Summary of the invention
The object of the present invention is to provide a kind of data communication equipment, have in the data communication equipment of integrated form master control borad to solve to have now, the business module on active and standby two master control borads has only a technical problem available, that utilance is lower at synchronization.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions: a kind of data communication equipment, comprise first, second master control borad, described first, second master control borad all comprises main control module and business module, described any one main control module is electrically connected with the business module of above-mentioned two master control borads respectively, in order to be in the business module on the different master control borads of main master control module controls with state.
Preferably, between described business module and main control module, also comprise multidiameter option switch, in order to switch between the main control module in first, second master control borad.
Preferably, divide the main control module and the business module that are in different master control borads to be electrically connected by backboard.
Preferably, main control module and the business module that is in same master control borad is electrically connected by backboard.
Preferably, main control module and the business module that is in same master control borad directly is electrically connected by the holding wire on this master control borad.
Be in main with state main control module and business module between be electrically connected and be in channel status.
Preferably, described business module is welded on the master control borad at itself place.
Preferably, described business module is installed on the master control borad at itself place with the subcard form.
Preferably, the connector between main control module, business module and the backboard on same master control borad is in same row or same row.
Preferably, described business module comprises interface business module and specific function business module.
Above technical scheme as can be seen, in the data communication equipment of tool of the present invention, because any one main control module on two master control borads is by being electrically connected, can both when being in the master, control the business module on the different master control borads with state, make at any time, business module on active and standby two master control borads can use simultaneously, has improved utilance with respect to prior art.
Further, divide the main control module and the business module that are on the different master control borads, and the main control module and the business module that are in same master control borad, all be electrically connected by backboard, make that integrated business module on the master control borad and traditional separate traffic plate are in full accord on implementation; And the business module on the existing integrated form master control borad adopts the holding wire on this plate directly to link to each other with main control module, so corresponding business module and traditional separate traffic plate have certain difference in realization; As seen, satisfying equally under the little demand of volume, data communication equipment structure disclosed by the invention is more simpler in realization than available data communication apparatus structure.
Further,, make the master of two master control borads, quilt be used state when changing,, the phenomenon of service disconnection also can not occur even without artificial reconfiguration cable because same main control module can be controlled the business module on the different master control borads simultaneously.
Embodiment
See also Fig. 4, it is plate groove position, the inside schematic diagram of data communication equipment first embodiment disclosed by the invention.Second master control borad 12 of first master control borad 11 of integrated first business module 111 and integrated second business module 121 all is plugged on the groove position of backboard 10.If be integrated in the business function demand that business module on the master control borad is not enough to satisfy the user, can also on other groove positions of backboard 10, plug business board 13 separately.Business board 13 described here refers to traditional professional plate.From groove position schematic diagram as can be seen since on master control borad integrated business module with business function, make whole communicator littler in the condition lower volume that realizes equal business function.
Please join Fig. 5, it is electrically connected schematic diagram for the inside plate of data communication equipment shown in Figure 4.If in this figure, also show the situation that is electrically connected that exists under traditional business plate 13 situations, because the electric connecting mode of business board 13 is the same with tradition, thereby just no longer describe in detail, below set forth difference emphatically: the relevant connection relation of the master control borad of integrated business function with the existing communication device.
First master control borad 11 comprises that first main control module 112 (CPU or exchange chip) and first business module, 111, the first main control modules 112 and first business module 111 are electrically connected (the dotted line tabular form is by being electrically connected that backboard carries out among the figure) by backboard 10; Second master control borad 12 comprises that second main control module 122 (CPU or exchange chip) and second business module, 121, the second main control modules 122 and second business module 121 are electrically connected by backboard 10.In addition, main control module and business module between the different master control borads also are electrically connected, be electrically connected by backboard 10 between first main control module 112 and second business module 121, be electrically connected by backboard 10 between second main control module 122 and first business module 111.
From above-mentioned electric connecting relation as can be known, any one main control module respectively with two master control borads on business module be electrically connected, but need explanation, thisly be electrically connected that might not to represent between main control module and the business module must be path, the possibility that just has path only is in and main can controls business module on the different master control borads together with the main control module of state.So-called main control module is in the main state of use, and just the master control borad at its place is in and mainly uses state, and another master control borad is in standby holding state, and the main control module on it is also corresponding is in holding state.But it is noted that because any one main control module can be controlled two business modules on the master control borad simultaneously the business module that therefore is on the master control borad of stand-by state also is in running order.
For example, suppose that first master control borad 11 is in the main state of using, second master control borad 12 is in stand-by state, so at this moment, first main control module 112, first business module 111 and second business module 121 are all in running order, and above-mentioned two business modules are electrically connected by the backboard 10 and first main control module 112, be subjected to 112 controls of first main control module, if first master control borad 11 breaks down, behind the described communicator generation masterslave switchover, second master control borad 12 is in the master and uses state, and first master control borad 11 becomes stand-by state.At this moment, first business module 111 and second business module 121 are still in running order, but are subjected to 122 controls of second main control module.
This shows, any one main control module all with two master control borads on business module have electric connecting relation, but only be in mainly when using state at it, can control this two business modules.From another angle, each business module all has electric connecting relation with two main control modules, but only is in main master control module controls with state.
Because first master control borad 11 has identical internal structure with second master control borad 12, thereby be example only, highlight the integration mode of business module and master control borad with first master control borad at this.First business module 111 can be directly welded on the main first control plate 11, also can adopt the form of subcard to be installed on the master control borad 11.Need the explanation since first business module 111 not only with this master control borad 11 on first main control module 112 electric connecting relation is arranged, also need to be electrically connected by second main control module 122 on the backboard and second master control borad 12.Therefore, need connector between first business module 111 and the backboard 10, certainly, also need connector between remainder on first master control borad 11 (as first main control module 112) and the backboard 10.Preferably, above-mentioned two kinds of connectors can be arranged at same row (or row), separate each other, help saving the groove bit space of backboard 10 like this.
By the foregoing description as can be seen and since any one main control module all with two master control borads on business module have electric connecting relation, and be in mainly when using state at it, can control this two business modules.Therefore, in the data communication equipment disclosed by the invention, the business module on active and standby two integrated form master control borads can be worked simultaneously, and utilization rate can reach 100%, and obviously the utilization rate than prior art has improved a lot.
Further, owing to divide the main control module and the business module that are on the different master control borads, and the main control module and the business module that are in same master control borad, all be electrically connected, make that integrated business module and traditional separate traffic plate can be in full accord on implementation on the master control borad by backboard.Therefore the specific implementation of whole communicator is more simple.Certainly, be in the main control module and the business module of same master control borad, can also directly be electrically connected by the holding wire on this master control borad.
Introduced an embodiment of technical scheme of the present invention above on the whole.Because business board roughly can be divided into two classes, one class is mainly used to provide external interface (such as Ethernet interface, atm interface), another kind of certain specific function (such as data encryption, IPS, data compression etc.) that provides, because this two class has certain difference on specific implementation, therefore explanation respectively below, and the preferred technical solution of the present invention is further disclosed.
See also Fig. 6, it is electrically connected schematic diagram for the inside plate of data communication equipment second embodiment of the present invention.First master control borad 11 is in the main state of using in the present embodiment, it comprises first main control module 112 and first interface module (business module a kind of), wherein, first interface module specifically comprises first interface chip 1111 and the port P1, the P2 that are connected thereon, and port P1, P2 connect other equipment by cable (as cable or optical cable).Second master control borad 12 is in standby holding state, it comprises second main control module 122 and second interface module, wherein, second interface module specifically comprises second interface chip 1211 and port P3, P4, and port P3, P4 connect other equipment by cable (as cable or optical cable).
In addition, between first interface chip 1111 and first main control module 112, second main control module 122, comprise multidiameter option switch S1 (can be arranged on the master control borad 11), in order between first main control module 112 and second main control module 122, to switch.For second master control borad 12 also is same structure, comprises multidiameter option switch S2 between second interface chip 1211 and first main control module 112, second main control module 122, in order to switch between first main control module 112 and second main control module 122.
Any one main control module all is electrically connected by backboard with two interface chips, needs explanation, thisly is electrically connected that might not to represent between main control module and the interface chip must be path, just has the possibility of path.In the present embodiment actually any bar to be electrically connected be the state that is provided with that path depends on switch, as can be seen from Figure 6, this moment, switch S 1 and S2 were in the left side channel status, so between first main control module 112 and first interface chip 1111, and being electrically connected between first main control module 112 and second interface chip 1211 is in channel status; Otherwise being electrically connected between second main control module 122 and above-mentioned two interface chips is in off state, and promptly the interface chip on two master control borads all is subjected to the control of first main control module 112.But, when first master control borad 11 breaks down, when masterslave switchover takes place, second master control borad 12 becomes main control board, and is corresponding, and second main control module 122 is in the main state of using, two switches also can all be beaten to opposite side (right side) simultaneously, and the state of this moment as shown in Figure 7.As can be seen, at this moment, second main control module 122 and first interface chip 1111, and being electrically connected between second main control module 122 and second interface chip 1211 be in channel status, promptly the interface chip on two master control borads all is subjected to the control of second main control module 122.
Can find out more specifically from this embodiment, the whichever master control borad is in the main state of using, being integrated in two interface modules (comprising interface chip and port P) on the master control borad can work, and in the masterslave switchover process, need not to change the cable on the port P.
See also Fig. 8, it is electrically connected schematic diagram for the inside plate of data communication equipment the 3rd embodiment of the present invention.The difference part of the present embodiment and second embodiment is that business module is a kind of module that certain specific function (as network security) is provided, and it externally is not used in the port of connection cable.Structure for other parts is identical with second embodiment, repeats no more.
At above-mentioned second embodiment and the 3rd embodiment, what time have needs explanation.At first, the kind of business module and specific implementation, two kinds of these that is not limited only to mention in the present embodiment.Such as, some business module is mainly used to provide certain specific function, but a spot of external interface also is provided in passing.Secondly, about the specific implementation of variable connector, can select chip PM8380 such as the multichannel of PMC-SIERRA company with reference to existing various integrated circuit (IC) chip with variable connector function.Once more, also can not adopt hardware to realize the variable connector function in the present invention, when adopting some connecting bus (such as pci bus), two main control modules directly can be connected with certain business module is parallel, the main control module of main usefulness removes control bus on one's own initiative, thereby the control business module, standby main control module does not remove control bus and business module.Like this, from the angle of business module, also played effect to selecting one in two main control modules.
More than a kind of data communication equipment provided by the present invention is described in detail, having used specific case herein sets forth principle of the present invention and execution mode, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof: simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.