CN1859244A - Master and slave frame cascade system in cut-in device - Google Patents
Master and slave frame cascade system in cut-in device Download PDFInfo
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Abstract
A master-slave frame cascade system in access equipment includes main frame at least one slave frame; wherein said main frame including master control board, backboard and line clip, master control board and line clip connected through backboard, master control board including concourse /switching module and uplink interface module, concourse/switching module respectively connected with line clip and uplink interface module, through uplink interface module establishing service channel; slave frame including clip; main slave frame respectively set transmitting/receiving module; main frame transmitting/receiving module connected with concourse /switching module, slave frame transmitting/receiving module connected with slave frame line clip through backboard; main and slave frame transmitting/receiving module connected through high-speed link, to make slave frame line clip directly through main frame concourse/switching module to make service concourse /switch .The present invention reduces system cost and IP address consumption.
Description
Technical field
The present invention relates to the broadband access equipment technical field, relate in particular to the master and slave frame cascade system in a kind of access device.
Background technology
Along with the development of broadband access technology and construction, broadband access method is more and more, and bandwidth is increasing, and the business that provides is more and more abundanter, and the user is also more and more simultaneously.Therefore, need provide more high density, broadband CO (Central Office, end office (EO)) access device more cheaply for operator and relative clients.
As shown in Figure 1, the broadband access equipment of prior art generally comprises main frame equipment and from frame equipment, is a unit altogether.Wherein, from the branch node of frame as main frame, business utilizes the data feedback channel of main frame to transmit after converging or exchange by master control veneer.Wherein, from frame and main frame master control borad (Main Control Card also often is known as switching board, except finishing whole frame veneer management work, also possesses the function that business is compiled/exchanged usually) is arranged all.
Can also can manage by from the management of frame master control borad from frame ply-yarn drill (Line Interface Card, promptly interface card is called for short ply-yarn drill, also often is known as service board) port by main frame master control borad.When frame ply-yarn drill port is managed by main frame master control borad, just transmit main frame master control borad and from the management information between the frame ply-yarn drill from the frame master control borad, and be separate from the core bus of frame transport service and the core bus of main frame transport service, main frame, from the shared data feedback channel of frame.
The equipment scheme that adopts this kind principal and subordinate frame concatenation technology as shown in Figure 1, main frame equipment and all comprise three big modules: backboard (not shown), master control borad and ply-yarn drill from frame equipment.Wherein, backboard is the unit that is used to connect master control veneer and ply-yarn drill; Master control borad is mainly finished the management of whole all veneer/modules of frame, and professional exchange and converging; Ply-yarn drill mainly is to be used for out user port.
Main frame master control borad (Main Control Card) and all converge/Switching Module (Switch Fabric) from frame master control borad (Slave Control Card); One or more of high-speed links interconnection are adopted in master control and from using general Tx/Rx circuit between the frame; Have only main frame to go out Wide Area Network interface unit (Wan Interface Unit) and carry out the business transmission.Generally, converge/Switching Module (Switch Fabric) and be less than the physical interface quantity of ply-yarn drill to the physical interface quantity of Wide Area Network interface unit.
Because the number of slots/ply-yarn drill number limited (generally being lower than about 20) of interpolation frame, and the user port quantity of each ply-yarn drill also limited (generally being lower than about 64) are so access device single frame capacity is all below 1000 usually.Adopt the equipment of this kind principal and subordinate frame concatenation technology, on its back plate design, master control borad is to adopt star-like connection to each user's plate, promptly be one or more link differential lines or other bus forms such as (for example) Serdes/LVDS independently to each user's groove position, a plurality of separated links of each groove position finally cause converging/switching network (being usually located in the master control borad) of equipment.Similar from frame design and main frame, main frame, between the frame by other one or more of high-speed links interconnection.There is following subject matter in this of prior art kind of equipment:
1, from the cost angle, main frame, all need to dispose master control borad with service convergence/function of exchange from frame, and this master control borad generally is scheme more complicated, the higher veneer of cost, and the cost of sharing each port (mostly being no more than 1000 lines) equally is higher relatively;
2, from webmaster, main frame is an isolated node, also is a node from frame, has taken more network management resources.Each node all needs to take a management ip address simultaneously, can consume more IP address resource;
3, slave unit realizes that angle sees, traditional approach can cause principal and subordinate's frame master control borad to realize complicated (especially software) from the frame concatenated schemes, this can influence the reliability and stability of equipment.
Summary of the invention
Technical problem to be solved by this invention is: overcome prior art principal and subordinate's frame concatenated schemes cost height, take the IP address resource many, realize complicated shortcoming, a kind of master and slave frame cascade system is provided, reduce cost, reduce consumption to the IP address, and minimizing network management system complexity and equipment disposition workload, the enhanced system reliability.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
Master and slave frame cascade system in this access device, comprise that main frame and at least one are from frame, main frame comprises master control borad, backboard and ply-yarn drill, master control borad is connected by backboard with ply-yarn drill, comprise on the master control borad converging/Switching Module and upstream Interface module, converge/Switching Module links to each other with the upstream Interface module with described ply-yarn drill respectively, sets up service channel with higher level's aggregation networks by the upstream Interface module; Describedly comprise backboard and ply-yarn drill from frame.At main frame with from frame transceiver module is set respectively, main frame transceiver module is connected with described converging/Switching Module, from the frame transceiver module by backboard be connected from the frame ply-yarn drill, described master and slave frame transceiver module connects by high-speed link, makes from the frame ply-yarn drill directly to carry out service convergence/exchange by the converging of main frame/Switching Module.
Described main frame transceiver module is arranged on the main frame master control borad, is high speed electrical interface or high-speed light interface.
Describedly also comprise one not with converging/master control borad of Switching Module, describedly be arranged on from the frame master control borad from the frame transceiver module from frame.Perhaps, describedly be arranged on other veneer that is plugged on from the frame backboard from the frame transceiver module.
Describedly can be high speed electrical interface module or high-speed light interface module from the frame transceiver module.
Described ply-yarn drill can be Digital Subscriber Line interface unit, Ethernet interface unit or EPON interface unit.
Described ply-yarn drill with converge/interface of Switching Module comprises Fast Ethernet mouth, gigabit Ethernet mouth or low-voltage differential signal interface.
Interconnect interface between described principal and subordinate's frame transceiver module comprises: 1000BASE-T, 1000BASE-SX, 1000BASE-LX, 1000BASE-CX, 100BASE-T, 100BASE-TX, 100BASE-FX or low-voltage differential signal interface.
Beneficial effect of the present invention is: the invention provides a kind of master and slave frame cascade system, directly manage from the frame ply-yarn drill by main frame, the industry of going forward side by side is engaged in converging/exchanging, and can effectively reduce the realization cost from frame equipment; No longer have the complicated master control borad of finishing exchange/aggregation feature from frame, reduced, increased reliability from frame equipment software and hardware complexity; From frame no longer is a separate nodes, thereby has saved the IP address resource that is used for webmaster, and can reduce network management system complexity and equipment disposition workload.
Description of drawings
Fig. 1 is principal and subordinate's frame concatenated schemes principle schematic in the existing broadband access equipment;
Fig. 2 is principal and subordinate's frame concatenated schemes principle schematic of the present invention.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
As shown in Figure 2, the invention provides master and slave frame cascade system in a kind of access device, comprise that main frame and at least one are from frame, main frame comprises master control borad, backboard and ply-yarn drill, master control borad is connected by the backboard (not shown) with ply-yarn drill, comprise on the master control borad converging/Switching Module and upstream Interface module (being the Wide Area Network interface unit), converge/Switching Module links to each other with the upstream Interface module with described ply-yarn drill respectively, set up service channel with higher level's aggregation networks by the upstream Interface module; Comprise backboard and ply-yarn drill from frame, in addition, usually comprise also that one is carried out some management work from the frame ply-yarn drill not with converging/master control borad of Switching Module, might not have master control borad from frame yet.
At main frame with from frame transceiver module is set respectively, main frame transceiver module with converge/Switching Module is connected, from the frame transceiver module by backboard be connected from the frame ply-yarn drill, master and slave frame transceiver module connects by high-speed link, makes from the frame ply-yarn drill directly to carry out service convergence/exchange by the converging of main frame/Switching Module.
Main frame transceiver module is arranged on the main frame master control borad; Can be arranged on from the frame master control borad from the frame transceiver module, or be arranged on other veneer that is plugged on from the frame backboard.Ply-yarn drill can be Digital Subscriber Line interface unit, Ethernet interface unit or EPON interface unit.Ply-yarn drill and switching network interface can be Fast Ethernet mouth (FE), gigabit Ethernet mouth (GE) or low-voltage differential signal interface (LVDS).Transceiver module can be electrical interface module or optical interface module.
The bright system of we is the detailed description of its function and principle by main frame, from high-speed interconnect link between frame and frame (can be cable and optical fiber) formation below:
One, main frame (Master Frame) main composition and function:
1, converge/Switching Module: this module is usually located on the interior master control borad of frame, for example, might be Switch Fabric (switching network) module, a plurality of FE/GE/10GE interfaces can be provided, finish the operation exchange between service convergence and these ports based on the Ethernet exchange;
2, ply-yarn drill: as the xDSL interface unit, be a kind of of user's plate, comprise ADSL/ADSL2+, VDSL/VDSL2, G.SHDSL etc., provide a plurality of xDSL line interfaces to connect the modulator-demodulator (Modem) that is positioned at user (subscriber) side, with the switching network interface be forms such as FE, GE or LVDS, the operation board software; Also can be other interface units except that xDSL, as Ethernet interface unit (Ethernet Interface Unit) or EPON interface unit (xPON Interface Unit) etc., with the switching network interface be forms such as FE, GE or LVDS;
3, Wide Area Network interface unit: i.e. upstream Interface module, realize the service channel with higher level's aggregation networks (Ethernet/IP/MPLS), with the switching network interface be forms such as FE, GE or LVDS;
4, main frame transceiver module (the Tx/Rx module in Fig. 2 master's frame): be simpler, a lower-cost high-speed interface of realization, it can be electrical interface, it also can be optical interface, a plurality of port mapping that will be positioned at the converging of main frame/Switching Module by a plurality of high-speed links are equivalent to the backboard of main frame is extended or expands user's number of slots amount of main frame to all the professional groove positions from frame.
Certainly, also comprise parts such as main control unit (among the figure sign) on the main frame master control borad, main control unit is used for the control and management (comprising network management interface) of each parts of the system that finishes (comprise be positioned at this frame and from the parts of frame), operation host software.These parts are same as the prior art, and the present invention repeats no more.
Main frame shown in Figure 2 and can be incorporated into samely as frame from the N+1 between the frame to the N+a bus also can be introduced differently from frame, and promptly main frame can be with a plurality of from frame, and the present invention is that example describes with one on main frame band from frame just.
Two, from frame (Slave Frame) main composition and function:
Be actually one and the suitable access device of main frame capacity from frame, ply-yarn drill (being user's plate) is identical with main frame, it for example might be the xDSL interface unit, also might be Ethernet interface unit or EPON interface unit etc., the user's plate in the function of various user's plates and use and the main frame be identical.
No longer include service convergence/Switching Module from frame, but adopt one and main frame to realize that similarly High-speed Interface Card simple, with low cost is promptly from frame transceiver module (Tx/Rx of Fig. 2 from frame), can be electrical interface or optical interface, will be from frame to many star-like links (for example bus forms such as 1000BASE-T, 1000BASE-SX, 1000BASE-LX, 1000BASE-CX, 100BASE-T, 100BASE-TX, 100BASE-FX, LVDS) of each user's groove position be incorporated into main frame and with converge/Switching Module links to each other; And in the prior art scheme, be to have finished after the service convergence/exchange of each groove position again and main frame cascade from frame.Comprise backboard and ply-yarn drill from frame; in addition; usually also comprise one not with converging/master control borad of Switching Module; carry out some management work from the frame ply-yarn drill; also might not have master control borad from frame, the Tx/Rx interface module can be present in from the frame master control borad or from other veneers of frame (being positioned at from the frame master control borad with the Tx/Rx interface module Fig. 2 is that example describes).Main frame and can realize the main-apparatus protection function by double T x/Rx interface module and cable or optical cable among the present invention from frame.
From top description as can be seen, realization essence of the present invention is just introduced from frame by the high speed cascaded link switching network corresponding port in the main frame and is connected to all professional groove positions, carrying out identical control and management from the professional groove position of frame and the professional groove position and the corresponding service plate of corresponding business plate and main frame, promptly main frame, all manage and service convergence/exchange by main frame master control borad from the business board (being ply-yarn drill) of frame, saved complex and expensive from the frame master control borad, thereby reduced cost, simplify the realization difficulty simultaneously, strengthened system reliability.
The present invention adopts the interframe interconnection technology to extend main frame backboard so that main frame master control borad (comprising service convergence/Switching Module) is supported more user's groove position; Main frame and from the converging/Switching Module of the shared main frame of frame can be one or more from frame; The cascade of principal and subordinate's frame adopts the high-speed interconnect technology to realize that main frame switching network (Switch Fabric) port is to the mapping from the professional groove of frame position; High-speed interconnect between principal and subordinate's frame can adopt wall scroll or many cables or optical fiber; Being arranged in main frame and can realizing at master control borad from the frame intercaste gang mould piece of frame, also can be an independent veneer; Principal and subordinate's interframe interconnection interface can be but be not limited to following technology: 1000BASE-T, 1000BASE-SX, 1000BASE-LX, 1000BASE-CX, 100BASE-T, 100BASE-TX, 100BASE-FX, LVDS etc.
Those skilled in the art do not break away from essence of the present invention and spirit, can there be the various deformation scheme to realize the present invention, the above only is the preferable feasible embodiment of the present invention, be not so limit to interest field of the present invention, the equivalence that all utilizations specification of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.
Claims (8)
1, the master and slave frame cascade system in a kind of access device, comprise that main frame and at least one are from frame, main frame comprises master control borad, backboard and ply-yarn drill, master control borad is connected by backboard with ply-yarn drill, comprise on the master control borad converging/Switching Module and upstream Interface module, converge/Switching Module links to each other with the upstream Interface module with described ply-yarn drill respectively, sets up service channel with higher level's aggregation networks by the upstream Interface module; Describedly comprise backboard and ply-yarn drill from frame, it is characterized in that: transceiver module is set respectively at main frame with from frame, main frame transceiver module is connected with described converging/Switching Module, from the frame transceiver module by backboard be connected from the frame ply-yarn drill, described master and slave frame transceiver module connects by high-speed link, makes from the frame ply-yarn drill directly to carry out service convergence/exchange by the converging of main frame/Switching Module.
2, the master and slave frame cascade system in the access device according to claim 1 is characterized in that: described main frame transceiver module is arranged on the main frame master control borad, is high speed electrical interface or high-speed light interface.
3, the master and slave frame cascade system in the access device according to claim 2 is characterized in that: describedly also comprise one not with converging/master control borad of Switching Module from frame, describedly be arranged on from the frame master control borad from the frame transceiver module.
4, the master and slave frame cascade system in the access device according to claim 2 is characterized in that: describedly be arranged on other veneer that is plugged on from the frame backboard from the frame transceiver module.
5, according to the master and slave frame cascade system in claim 3 or the 4 described access devices, it is characterized in that: described is high speed electrical interface module or high-speed light interface module from the frame transceiver module.
6, the master and slave frame cascade system in the access device according to claim 5 is characterized in that: described ply-yarn drill is Digital Subscriber Line interface unit, Ethernet interface unit or EPON interface unit.
7, the master and slave frame cascade system in the access device according to claim 5 is characterized in that: described ply-yarn drill with converge/interface of Switching Module comprises Fast Ethernet mouth, gigabit Ethernet mouth or low-voltage differential signal interface.
8, the master and slave frame cascade system in the access device according to claim 5 is characterized in that: the interconnect interface between described principal and subordinate's frame transceiver module comprises: 1000BASE-T, 1000BASE-SX, 1000BASE-LX, 1000BASE-CX, 100BASE-T, 100BASE-TX, 100BASE-FX or low-voltage differential signal interface.
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| CNB2005101005319A CN100384169C (en) | 2005-10-19 | 2005-10-19 | Master and slave frame cascade system in cut-in device |
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| CN101170394B (en) * | 2007-11-27 | 2010-09-15 | 华为技术有限公司 | A method and device for realizing inter-board interconnection |
| WO2010149065A1 (en) * | 2010-01-11 | 2010-12-29 | 中兴通讯股份有限公司 | System and method for realizing master-slave frame cascading protection and load sharing |
| CN101247663B (en) * | 2008-03-07 | 2011-03-02 | 中兴通讯股份有限公司 | Considerable routing system and its forwarding table generation method |
| CN101986626A (en) * | 2010-11-18 | 2011-03-16 | 中兴通讯股份有限公司 | Method and device for protecting equipment |
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| CN102696199A (en) * | 2009-12-11 | 2012-09-26 | 中兴通讯股份有限公司 | X digital subscriber line (xDSL) data transmission device and method |
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| CN101170394B (en) * | 2007-11-27 | 2010-09-15 | 华为技术有限公司 | A method and device for realizing inter-board interconnection |
| CN101247663B (en) * | 2008-03-07 | 2011-03-02 | 中兴通讯股份有限公司 | Considerable routing system and its forwarding table generation method |
| CN102696199A (en) * | 2009-12-11 | 2012-09-26 | 中兴通讯股份有限公司 | X digital subscriber line (xDSL) data transmission device and method |
| CN102696199B (en) * | 2009-12-11 | 2014-06-18 | 中兴通讯股份有限公司 | X digital subscriber line (xDSL) data transmission device and method |
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| CN103312539A (en) * | 2013-05-20 | 2013-09-18 | 华为技术有限公司 | Master-slave frame cascaded system in access equipment |
| CN103312539B (en) * | 2013-05-20 | 2016-09-28 | 华为技术有限公司 | Master and slave frame cascade system in access device |
| CN105281917A (en) * | 2014-07-21 | 2016-01-27 | 中兴通讯股份有限公司 | Backplane structure and centralized switching device |
| WO2015117519A1 (en) * | 2014-07-21 | 2015-08-13 | 中兴通讯股份有限公司 | Back panel structure and centralized switching device |
| CN106055515A (en) * | 2016-06-30 | 2016-10-26 | 上海斐讯数据通信技术有限公司 | Master and slave frame cascading system and time sequence compensation method thereof |
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| CN108632060A (en) * | 2017-03-20 | 2018-10-09 | 中兴通讯股份有限公司 | A kind of cascade method and device of router |
| CN108632060B (en) * | 2017-03-20 | 2022-07-08 | 中兴通讯股份有限公司 | Method and device for router cascade |
| CN111045851A (en) * | 2018-10-12 | 2020-04-21 | 株洲中车时代电气股份有限公司 | Communication system |
| CN109672566A (en) * | 2019-01-04 | 2019-04-23 | 烽火通信科技股份有限公司 | Communication means and system between network element device, application |
| CN109857691A (en) * | 2019-01-04 | 2019-06-07 | 北京航天晨信科技有限责任公司 | Bus can cascade integrated communication equipment and multichannel time multiplexed transmission method |
| CN111464342A (en) * | 2020-03-19 | 2020-07-28 | 烽火通信科技股份有限公司 | Distributed routing convergence method and system for network equipment management information |
| CN111464342B (en) * | 2020-03-19 | 2023-04-07 | 烽火通信科技股份有限公司 | Distributed routing convergence method and system for network equipment management information |
| CN113115133A (en) * | 2021-03-10 | 2021-07-13 | 烽火通信科技股份有限公司 | Method and system for discovering topology of expansion subframe |
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