CN103795469B - Optical cross-matrix in a kind of fibre channel media and operation method - Google Patents
Optical cross-matrix in a kind of fibre channel media and operation method Download PDFInfo
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Abstract
The present invention is optical cross-matrix in a kind of fibre channel media and operation method, and optical cross-matrix comprises matrix controller and n
2individual identical wavelength-selective switches, n is the integer of 2 to 9, respectively has 1+n
2individual add drop multiplex port, is respectively input, outbound port and n
2-1 interconnect port, each wavelength-selective switches docks one by one.Matrix controller is connected with each wavelength-selective switches, controls each port and opens and closes, form n
2to optical cross-matrix; Line card controller and matrix controller and each wavelength-selective switches communicate to connect, transmission data.Its operation method is: matrix controller, by packet trend, is checked related port state, if not busy, set up communication link; If busy, compare priority, the broadcast low to priority, ignore this operation; If this priority is high, interrupts current operation, set up communication link, be transmitted rear dismounting communication link.The present invention is process and the exchange of light signal, reduces interference, raises the efficiency, favourable upgrading.
Description
Technical field
The present invention relates to technical field of optical fiber communication, be specially based on the optical cross-matrix in a kind of fibre channel media of wavelength-selective switches and operation method.
Background technology
Optical-fibre channel (FiberChannel, be called for short FC) is a kind of data transmission technology of new generation with high speed, Large Copacity, low delay feature, for transfer of data between computer equipment, transfer rate can reach 1 or 2Gbps even higher.Different from other LAN Technique, it not only supports the expanding channels of main frame-peripheral hardware, also supports that the network of main frame-main frame connects.It supports multiple transmission rate (133Mb/s to 8Gb/s develops higher rate at present) and serial physical transport medium, comprises coaxial cable, twisted-pair feeder and optical fiber.Fibre channel standard is organized and has been set up aviation electronics sub-committee (ANSIFC-AE) specially, how main research FC technology is applied to aviation electronics field, 5 kinds of protocol specifications are formulated at present, FC-AE-1553 is wherein a kind of, also has FC-AE-ASM, FC-AE-FCLP, FC-AE-RDMA and FC-AE-VI in addition.Optical-fibre channel starts to be applied in the middle of the interconnection of Aero-Space high-speed electronic device, as F/A-18E/F, EA-18G, E-2D, F-35, AH-64Apache, B-1B, V22 etc. by means of the excellent properties of high bandwidth, low delay, low error rate.Current optical-fibre channel is widely adopted as in storage area network at home and abroad commercial kitchen area, but the support of optical-fibre channel as bus protocol and under being provided in aviation electronics environment, the unified avionics network application at home building a new generation with FC-AE also needs to need to be further developed.
Realize Fibre Channel technologies and mainly comprise terminal device interface card two parts composition with the fibre channel media of F port and N port, wherein fibre channel media mainly comprises line card and crosspoint two parts composition, and crosspoint adopts following several method usually: adopt centralized processor and memory to realize, adopt the mode majority of switching matrix to take electric cross protocol chip to realize, adopt multistage multilevel multimachine tank bracket structure formula.Traditional crosspoint implementation is all carry out data exchange processing again after adopting opto-electronic conversion, electronics " bottleneck " successful, and the electric Cross module used in fibre channel media strongly limit the index such as performance and speed of fibre channel media due to the effect of opto-electronic conversion, is unfavorable for the upgrading of fibre channel media.
At present, based on technology wavelength-selective switches technology maturations such as MEMS, LC or LCoS, the commercialization of comparative maturity 1 × 9 10 port wavelength-selective switches markets application just like a raging fire.The switch of some 1 × 16 more high-end ports or 1 × 20 port also carries out marketing.Utilize wavelength-selective switches can form point-to-point optical switching matrix, replace traditional electric switching matrix application, reduce electromagnetic interference, greatly improve the operating efficiency of fibre channel media.
The application of Fibre Channel technologies in bussing technique, under being particularly applied in the environmental condition of some harshness, due to its at a high speed, the excellent characteristic such as anti-interference certainly will become bussing technique of future generation.But " electronic bottleneck " of the electric cross matrix at present in fibre channel media becomes the obstacle of Fibre Channel technologies development significantly, there is not yet a kind of optical cross-matrix replacing electric cross matrix.
Summary of the invention
The object of the invention is to design the optical cross-matrix in a kind of fibre channel media, comprise matrix controller and n
2individual 1 identical × n
2wavelength-selective switches, is configured with n
2individual input port and n
2the n of individual output port
2to optical cross-matrix.
Another object of the present invention is the operation method of the optical cross-matrix in a kind of fibre channel media of design, the data packet frame structure that matrix controller receives from line card controller, acquisition packet moves towards, check relevant each receiving port state, according to the busy of each port, by the priority of the frame structure of packet, set up communication link, after completing transfer of data, remove communication link.
Optical cross-matrix in a kind of fibre channel media of the present invention's design, described fibre channel media comprises line card controller and cross matrix, and described cross matrix is optical cross-matrix, comprises matrix controller and n
2individual 1 identical × n
2wavelength-selective switches, n is the integer of 2 to 9, each 1 × n
2wavelength-selective switches has 1+n
2individual add drop multiplex port, wherein 1 port is as the input port of the unidirectional reception of this optical cross-matrix, another 1 port as the output port of the unidirectional transmission of this optical cross-matrix, all the other n
2-1 port is interconnect port, with other n
2the interconnect port of-1 wavelength-selective switches connects one to one through optical fiber.Matrix controller is connected with each wavelength-selective switches, controls the keying of each port of wavelength-selective switches, is configured with n
2individual input port and n
2the n of individual output port
2to optical cross-matrix; The line card controller of matrix controller and fibre channel media communicates to connect, and receive the data that fibre channel media system sends, the input/output port of line card controller and each wavelength-selective switches communicates to connect, and realizes transfer of data.
The operation method of the optical cross-matrix in a kind of fibre channel media, matrix controller receives the frame structure of the packet that line card controller sends, and obtains packet trend, checks relevant each interconnect port state, if port is not busy state, connects related port and set up communication link; If port is busy condition, carry out priority ratio comparatively, if the broadcast that priority is low, ignore this operation; If this requires that the priority level of exchanges data is higher than the ongoing operation of present port, interrupt the ongoing operation of present port, connect related port and set up communication link, carry out transfer of data; After transfer of data completes, remove communication link.
The operation method of the optical cross-matrix in fibre channel media of the present invention realizes n
2to in certain to i simultaneously to other n
2-1 to signal transmission, and the method for namely carrying out broadcast operation is as follows:
Matrix controller obtains i from the data packet frame structure that line card controller receives and wants to send data to other direction of this optical cross-matrix to signal simultaneously, namely broadcast, matrix controller checks the state of other wavelength-selective switches interconnect port of wavelength-selective switches i and this optical cross-matrix; If port is not busy state, then the port that control wavelength-selective switches i and other wavelength-selective switches interconnect is connected, and sets up communication link, and configuration wavelength-selective switches i distribute wavelength, and the broadcast singal that wavelength-selective switches i receives presses n
2-a kind of different wave length, port through optical fiber interconnections, be sent to other wavelength-selective switches, sent by the output port of other wavelength-selective switches.The communication link that wavelength-selective switches i and other wavelength-selective switches interconnect is cancelled after off-the-air.If have one or several in the port that selector switch i and other wavelength-selective switches interconnect for busy condition, because the priority of broadcast operation instruction is lower, ignore this broadcast operation for busy condition port.
The operation method of the optical cross-matrix in fibre channel media of the present invention realizes n
2to in certain to i to other n
2-1 in j to signal transmission, the method for namely carrying out circuit switching operation is as follows:
Matrix controller obtains i from the data packet frame structure that line card controller receives will to the j of this optical cross-matrix to transmission data to signal, and namely carry out circuit switched, matrix controller checks the state of wavelength-selective switches i and wavelength-selective switches j interconnect port; If port is not busy state, the port that then control wavelength-selective switches i and wavelength-selective switches j interconnects is connected, set up communication link, configuration wavelength-selective switches i distribute wavelength, the input signal that wavelength-selective switches i receives is by this wavelength, port through optical fiber interconnections, be sent to wavelength-selective switches j, sent by its output port.The communication link that wavelength-selective switches i and wavelength-selective switches j interconnects is cancelled after off-the-air.If the port that wavelength-selective switches i and wavelength-selective switches j interconnects is busy condition, matrix controller carries out priority ratio comparatively, if this requires that the priority level of circuit switched is higher than the ongoing operation of present port, interrupt the ongoing operation of present port, keep the scene intact, connect ij interconnect port and set up communication link, carry out transfer of data; After transfer of data completes, remove communication link; Return to the scene before interruption again, work on.If this requires that the priority level of circuit switched is lower than the ongoing operation of present port, matrix controller hurries to fibre channel media feedback line, enter wait state, treat that ij interconnect port is idle condition, connect ij interconnect port and set up communication link, carry out the transfer of data of this circuit switched, after transfer of data completes, remove communication link.
Compared with prior art, optical cross-matrix in a kind of fibre channel media of the present invention and operation method advantage are: 1, this optical cross-matrix is used as the crosspoint of fibre channel media, process information in the form of light, the crosspoint of the electric cross matrix of data exchange processing is carried out again after comparing traditional employing opto-electronic conversion, improve the Electro Magnetic Compatibility of fibre channel media,, reduce electromagnetic interference, and the electronics overcoming electro-optic conversion and bring " bottleneck " problem; 2, this optical cross-matrix directly carries out process and the exchange of light signal, improves the index such as performance and speed of fibre channel media, drastically increases the operating efficiency of fibre channel media; 3, the wavelength-selective switches technology maturation of optical cross-matrix is formed, the 10 port wavelength-selective switches of 1 × 9 have ripe business market, the switch of some 1 × 16 more high-end ports or 1 × 20 port also commercially occurs, is convenient to of the present invention applying; 4, optical cross-matrix is conducive to fibre channel media and upgrades further, and can save upgrade cost.
Accompanying drawing explanation
Fig. 1 is the syndeton schematic diagram of the optical cross-matrix embodiment 4 in this fibre channel media to All-optical switching matrix 41 × 4 wavelength-selective switches;
Fig. 2 is the connection configuration diagram of optical switching matrix embodiment illustrated in fig. 1 in fibre channel media;
The broadcast operation flow chart of the operation method embodiment matrix controller of the optical cross-matrix in this fibre channel media of Fig. 3;
The circuit switching operation flow chart of the operation method embodiment matrix controller of the optical cross-matrix in this fibre channel media of Fig. 4.
Embodiment
Optical cross-matrix embodiment in fibre channel media
Optical cross-matrix embodiment in this fibre channel media is four-way optical cross-matrix, comprise 1 × 4 wavelength-selective switches WSSA, B, C, D that matrix controller is identical with 4, each 1 × 4 wavelength-selective switches WSS has 5 add drop multiplex ports, wherein 1 port is as the input port of the unidirectional reception of this optical cross-matrix, another 1 port is as the output port of the unidirectional transmission of this optical cross-matrix, all the other 3 ports are interconnect port, are connected one to one through optical fiber with the interconnect port of other 3 wavelength-selective switches.The connection of 41 × 4 wavelength-selective switches as shown in Figure 1.As shown in Figure 2, matrix controller is connected with each wavelength-selective switches, controls the keying of each port of wavelength-selective switches WSS, is configured with the optical cross-matrix of A, B, C, D four-way of 4 input ports and 4 output ports.The line card controller of matrix controller and fibre channel media communicates to connect, and receive the data that fibre channel media sends, the input/output port of line card controller and each wavelength-selective switches communicates to connect, and realizes transfer of data.
By the connected mode that the present embodiment is identical, matrix controller connects 91 × 9 wavelength-selective switches, is configured with the optical cross-matrix of 9 input ports and 9 output ports.Matrix controller connects 16 1 × 16 wavelength-selective switches, is configured with the optical cross-matrix of 16 input ports and 16 output ports.
The operation method embodiment of the optical cross-matrix in fibre channel media
This example adopts the four-way optical cross-matrix of the optical cross-matrix embodiment in above-mentioned fibre channel media.
The operation method of the optical cross-matrix in this routine fibre channel media realizes 4 to middle A to simultaneously to other B, C, D to signal transmission, namely carries out the operation of matrix controller in the method for broadcast operation as shown in Figure 3, specific as follows:
Matrix controller obtains A from the data packet frame structure that line card controller receives and wants to send data to B, C, D direction of this optical cross-matrix to signal simultaneously, namely broadcast, matrix controller checks the state of B, C, D wavelength-selective switches interconnect port of wavelength-selective switches A and this optical cross-matrix; If each port is not busy state, then control the port connection of wavelength-selective switches A and B, the interconnection of C, D wavelength-selective switches, set up communication link, configuration wavelength-selective switches A distribute wavelength, the broadcast singal that wavelength-selective switches A receives is by 3 kinds of different wave lengths, port through optical fiber interconnections, be sent to B, C, D wavelength-selective switches, sent by the output port of B, C, D wavelength-selective switches.The communication link of wavelength-selective switches A and B, the interconnection of C, D wavelength-selective switches is cancelled after off-the-air.If have one or several in the port of selector switch A and B, C, D wavelength-selective switches interconnection for busy condition, because the priority of broadcast operation instruction is lower, ignore this broadcast operation for busy condition port.
The operation method of the optical cross-matrix in this routine fibre channel media realize 4 in A to B to signal transmission, namely carry out the operation of matrix controller in the method for circuit switching operation as shown in Figure 4, specific as follows:
Matrix controller obtains A from the data packet frame structure that line card controller receives will to the B of this optical cross-matrix to transmission data to signal, and namely carry out circuit switched, matrix controller checks the state of wavelength-selective switches A and wavelength-selective switches B interconnect port; If port is not busy state, the port that then control wavelength-selective switches A and wavelength-selective switches B interconnects is connected, set up communication link, configuration wavelength-selective switches A distribute wavelength, the input signal that wavelength-selective switches A receives is by this wavelength, port through AB optical fiber interconnections, be sent to wavelength-selective switches B, sent by its output port.The communication link that wavelength-selective switches A and wavelength-selective switches B interconnects is cancelled after off-the-air.If the port that wavelength-selective switches A and wavelength-selective switches B interconnects is busy condition, matrix controller carries out priority ratio comparatively, if this requires that the priority level of circuit switched is higher than the ongoing operation of present port, interrupt the ongoing operation of present port, keep the scene intact, connect AB interconnect port and set up communication link, carry out transfer of data; After transfer of data completes, remove communication link; Return to the scene before interruption again, work on.If this requires that the priority level of circuit switched is lower than the ongoing operation of present port, matrix controller hurries to fibre channel media feedback line, enter wait state, treat that AB interconnect port is idle condition, connect AB interconnect port and set up communication link, carry out the transfer of data of this circuit switched, after transfer of data completes, remove the communication link between AB interconnect port.
Above-described embodiment, be only the specific case further described object of the present invention, technical scheme and beneficial effect, the present invention is not defined in this.All make within scope of disclosure of the present invention any amendment, equivalent replacement, improvement etc., be all included within protection scope of the present invention.
Claims (4)
1. the optical cross-matrix in fibre channel media, described fibre channel media comprises line card controller and cross matrix, it is characterized in that:
Described cross matrix is optical cross-matrix, comprises matrix controller and n
2individual 1 identical × n
2wavelength-selective switches, n is the integer of 2 to 9, each 1 × n
2wavelength-selective switches has 1+n
2individual add drop multiplex port, wherein 1 port is as the input port of the unidirectional reception of this optical cross-matrix, another 1 port as the output port of the unidirectional transmission of this optical cross-matrix, all the other n
2-1 port is interconnect port, with other n
2the interconnect port of-1 wavelength-selective switches connects one to one through optical fiber; Matrix controller is connected with each wavelength-selective switches, controls the keying of each port of wavelength-selective switches, is configured with n
2individual input port and n
2the n of individual output port
2to optical cross-matrix; The line card controller of matrix controller and fibre channel media communicates to connect, and the input/output port of line card controller and each wavelength-selective switches communicates to connect.
2. the operation method of the optical cross-matrix in fibre channel media according to claim 1, is characterized in that:
The data packet frame structure that described matrix controller receives from line card controller, obtains packet trend, checks relevant each interconnect port state, if port is not busy state, connects related port and sets up communication link; If port is busy condition, carry out priority ratio comparatively, if the broadcast that priority is low, ignore this operation; If this requires that the priority level of exchanges data is higher than the ongoing operation of present port, interrupt the ongoing operation of present port, connect related port and set up communication link, carry out transfer of data; After transfer of data completes, remove communication link.
3. the operation method of the optical cross-matrix in fibre channel media according to claim 2, is characterized in that:
Realize n
2to in certain to i simultaneously to other n
2-1 to signal transmission, and the method for namely carrying out broadcast operation is as follows:
Matrix controller obtains i from the data packet frame structure that line card controller receives and wants to send data to other direction of this optical cross-matrix to signal simultaneously, namely broadcast, matrix controller checks the state of other wavelength-selective switches interconnect port of wavelength-selective switches i and this optical cross-matrix; If port is not busy state, then the port that control wavelength-selective switches i and other wavelength-selective switches interconnect is connected, and sets up communication link, and configuration wavelength-selective switches i distribute wavelength, and the broadcast singal that wavelength-selective switches i receives presses n
2-a kind of different wave length, port through optical fiber interconnections, be sent to other wavelength-selective switches, sent by the output port of other wavelength-selective switches; The communication link that wavelength-selective switches i and other wavelength-selective switches interconnect is cancelled after off-the-air; If have one or several in the port that selector switch i and other wavelength-selective switches interconnect for busy condition, ignore this broadcast operation for busy condition port.
4. the operation method of the optical cross-matrix in fibre channel media according to claim 2, is characterized in that:
Realize n
2to in certain to i to other n
2-1 in j to signal transmission, the method for namely carrying out circuit switching operation is as follows:
Matrix controller obtains i from the data packet frame structure that line card controller receives will to the j of this optical cross-matrix to transmission data to signal, and namely carry out circuit switched, matrix controller checks the state of wavelength-selective switches i and wavelength-selective switches j interconnect port; If port is not busy state, the port that then control wavelength-selective switches i and wavelength-selective switches j interconnects is connected, set up communication link, configuration wavelength-selective switches i distribute wavelength, the input signal that wavelength-selective switches i receives is by this wavelength, port through optical fiber interconnections, be sent to wavelength-selective switches j, sent by its output port; The communication link that wavelength-selective switches i and wavelength-selective switches j interconnects is cancelled after off-the-air; If the port that wavelength-selective switches i and wavelength-selective switches j interconnects is busy condition, matrix controller carries out priority ratio comparatively, if this requires that the priority level of circuit switched is higher than the ongoing operation of present port, interrupt the ongoing operation of present port, keep the scene intact, connect ij interconnect port and set up communication link, carry out transfer of data; After transfer of data completes, remove communication link; Return to the scene before interruption again, work on; If this requires that the priority level of circuit switched is lower than the ongoing operation of present port, matrix controller hurries to fibre channel media feedback line, enter wait state, treat that ij interconnect port is idle condition, connect ij interconnect port and set up communication link, carry out the transfer of data of this circuit switched, after transfer of data completes, remove communication link.
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Families Citing this family (7)
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| CN104579696B (en) * | 2015-01-23 | 2016-04-20 | 浪潮电子信息产业股份有限公司 | A kind of optical fiber switch system and a kind of optical fiber switch |
| CN109257663B (en) * | 2018-08-24 | 2020-07-17 | 中国科学院计算技术研究所 | Multi-track network-oriented optical path switching method and system |
| CN110247705B (en) * | 2019-06-21 | 2020-12-08 | 武汉邮电科学研究院有限公司 | Multi-core fiber-based optical quantum fusion network implementation method and system |
| CN111711468B (en) * | 2020-06-15 | 2021-04-06 | 北京国科天迅科技有限公司 | FC-AE-1553 network system for data transmission by adopting coaxial cable |
| CN111682886B (en) * | 2020-06-15 | 2021-06-08 | 北京国科天迅科技有限公司 | Optical fiber avionics network system for data transmission by adopting coaxial cable |
| CN112039842B (en) * | 2020-07-23 | 2022-06-21 | 成都光航信科技有限公司 | System and method for implementing FC data transmission based on twisted pair medium |
| CN117579482B (en) * | 2023-12-05 | 2024-07-09 | 广东保伦电子股份有限公司 | Fiber matrix cascading method, system, equipment and storage medium |
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