CN103795469A - Light crossing matrix in optical fiber channel switch and operation method - Google Patents
Light crossing matrix in optical fiber channel switch and operation method Download PDFInfo
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- CN103795469A CN103795469A CN201410068736.2A CN201410068736A CN103795469A CN 103795469 A CN103795469 A CN 103795469A CN 201410068736 A CN201410068736 A CN 201410068736A CN 103795469 A CN103795469 A CN 103795469A
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Abstract
The invention relates to a light crossing matrix in an optical fiber channel switch and an operation method. The light crossing matrix comprises a matrix controller and n<2> identical wavelength selection switches, wherein n is an integer ranging from two to nine, each wavelength selection switch is provided with 1+n<2> add-drop multiplexing ports which include an input port, an output port and n<2>-1 interconnection ports, and the wavelength selection switches are in butt joint in a one-to-one mode. The matrix controller is connected with the wavelength selection switches so as to control the ports to be opened and closed, and the light crossing matrix in the n<2> directions is formed. A line card controller is in communication connection with the matrix controller and the wavelength selection switches for data transmission. The operation method includes the steps that the matrix controller checks the states of the correlated ports according to the direction of a data pack; if the states of the correlated ports are idle, a communication link is built; if the states of the correlated ports are busy, priorities are compared, the port with a low priority is broadcasted and the operation is neglected; if the priority is high, the current operation is interrupted, a communication link is built and the communication link is disassembled after transmission is finished. The light crossing matrix and the operation method reduce interference, improve efficiency and facilitate upgrading for processing and exchanging of light signals.
Description
Technical field
The present invention relates to technical field of optical fiber communication, be specially optical cross-matrix and operation method in a kind of fibre channel media based on wavelength-selective switches.
Background technology
Optical-fibre channel (Fiber Channel, be called for short FC) be a kind ofly have at a high speed, the data transmission technology of new generation of large capacity, 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 passage of main frame-peripheral hardware to connect, and also supports the network of main frame-main frame to connect.It supports multiple transmission rate (133Mb/s, to 8Gb/s, is developing higher rate at present) and serial physical transfer medium, comprises coaxial cable, twisted-pair feeder and optical fiber.Fibre channel standard is organized and has been set up specially aviation electronics sub-committee (ANSI FC-AE), 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 in addition FC-AE-ASM, FC-AE-FCLP, FC-AE-RDMA and FC-AE-VI.Optical-fibre channel relies on the excellent properties of high bandwidth, low delay, low error rate to start 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.Optical-fibre channel is at home and abroad widely adopted in commercial kitchen area as storage area network at present, but optical-fibre channel is as bus protocol and the support under aviation electronics environment is provided, building unified aviation electronics network of new generation application at home with FC-AE also needs to need to be further developed.
Realizing optical-fibre channel technology mainly comprises with the fibre channel media of F port and terminal device interface card two parts of N port composition, wherein fibre channel media mainly comprises line card and crosspoint two parts composition, and crosspoint adopts following several method conventionally: 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 to carry out data exchange processing after adopting opto-electronic conversion again, electronics " bottleneck " successful, and the electric Cross module using in fibre channel media, because the effect of opto-electronic conversion has greatly limited the index such as performance and speed of fibre channel media, 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, commercial 1 × 9 10 port wavelength-selective switches markets application of comparative maturity are just like a raging fire.1 × 16 port that some are more high-end or the switch of 1 × 20 port are also carrying 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 optical-fibre channel technology aspect bussing technique, is particularly applied under some harsh environmental condition, due to its at a high speed, the characteristic of the excellence such as anti-interference certainly will become bussing technique of future generation.But " electronic bottleneck " of the electric cross matrix in fibre channel media becomes the obstacle of optical-fibre channel technical development significantly at present, there is not yet a kind of optical cross-matrix that replaces 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, forms and has 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 is received from line card controller, obtain packet trend, 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, complete after 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, described cross matrix is optical cross-matrix, Cover matrix controller and n
2individual 1 identical × n
2wavelength-selective switches, n is 2 to 9 integer, 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, and another 1 port is 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 the each port of wavelength-selective switches, forms and has n
2individual input port and n
2the n of individual output port
2to optical cross-matrix; The line card controller communication connection of matrix controller and fibre channel media, receives the data that fibre channel media system sends, and the input/output port communication connection of line card controller and each wavelength-selective switches, realizes transfer of data.
The operation method of the optical cross-matrix in a kind of fibre channel media, matrix controller is received the frame structure of the packet of line card controller transmission, 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, if this operation is ignored in the low broadcast of priority; If this requires the priority level of exchanges data higher than when the ongoing operation of front port, interrupt when the ongoing operation of front 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 is realized n
2to in certain to i simultaneously to other n
2-1 to signal transmission, and the method for carrying out broadcast operation is as follows:
The data packet frame structure that matrix controller is received from line card controller obtains i and wants other direction to this optical cross-matrix simultaneously to send data to signal, broadcast, matrix controller is checked 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, control the port of wavelength-selective switches i and the interconnection of other wavelength-selective switches and connect, set up communication link, configuration wavelength-selective switches i distributes wavelength, and the broadcast singal that wavelength-selective switches i receives is pressed n
2-a kind of different wave length, through the port of optical fiber interconnections, be sent to other wavelength-selective switches, sent by the output port of other wavelength-selective switches.After off-the-air, cancel the communication link of wavelength-selective switches i and the interconnection of other wavelength-selective switches.If have one or several for busy condition in the port of selector switch i and the interconnection of other wavelength-selective switches, 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 is realized n
2to in certain to i to other n
2-1 in j to signal transmission, the method for carrying out circuit switching operation is as follows:
The data packet frame structure that matrix controller is received from line card controller obtains i will, to the j of this optical cross-matrix to sending data, carry out circuit switched to signal, and matrix controller is checked the state of wavelength-selective switches i and wavelength-selective switches j interconnect port; If port is not busy state, controlling the port of wavelength-selective switches i and wavelength-selective switches j interconnection connects, set up communication link, configuration wavelength-selective switches i distributes wavelength, the input signal that wavelength-selective switches i receives is by this wavelength, through the port of optical fiber interconnections, be sent to wavelength-selective switches j, sent by its output port.After off-the-air, cancel the communication link of wavelength-selective switches i and wavelength-selective switches j interconnection.If the port of wavelength-selective switches i and wavelength-selective switches j interconnection is busy condition, matrix controller carries out priority ratio, if this requires the priority level of circuit switched higher than working as the ongoing operation of front port, interrupt when the ongoing operation of front port, keep the scene intact, connect i j interconnect port and set up communication link, carry out transfer of data; After transfer of data completes, remove communication link; Return to again the scene before interruption, work on.If this requires the priority level of circuit switched lower than working as the ongoing operation of front port, matrix controller is busy to fibre channel media feedback line, enter wait state, treat that i j interconnect port is idle condition, connect i j 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 and operation method advantage in a kind of fibre channel media of the present invention are: 1, this optical cross-matrix is as the crosspoint of fibre channel media, with the formal layout information of light, compare the crosspoint that carries out again the electric cross matrix of data exchange processing after traditional employing opto-electronic conversion, improve the Electro Magnetic Compatibility of fibre channel media,, reduce electromagnetic interference, and overcome electric light conversion and electronics " bottleneck " problem brought; 2, this optical cross-matrix directly carries out processing and the exchange of light signal, has improved the index such as performance and speed of fibre channel media, has greatly improved the operating efficiency of fibre channel media; 3, form the wavelength-selective switches technology maturation of optical cross-matrix, 1 × 9 the existing ripe business market of 10 port wavelength-selective switches, 1 × 16 port that some are more high-end or the switch of 1 × 20 port also occur on market, are convenient to of the present invention applying; 4, optical cross-matrix is conducive to fibre channel media and further upgrades, and can save upgrade cost.
Accompanying drawing explanation
Fig. 1 is optical cross-matrix embodiment 4 in this fibre channel media syndeton schematic diagram to 41 × 4 wavelength-selective switches of full optical switching matrix;
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 wavelength-selective switches WSS each port, form have A, the B of 4 input ports and 4 output ports, C, D4 to optical cross-matrix.The line card controller communication connection of matrix controller and fibre channel media, receives the data that fibre channel media sends, and the input/output port communication connection of line card controller and each wavelength-selective switches, realizes transfer of data.
Press the connected mode that the present embodiment is identical, matrix controller connects 91 × 9 wavelength-selective switches, forms the optical cross-matrix that has 9 input ports and 9 output ports.Matrix controller connects 16 1 × 16 wavelength-selective switches, forms the optical cross-matrix that has 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, carries out the operation of matrix controller in the method for broadcast operation as shown in Figure 3, specific as follows:
The data packet frame structure that matrix controller is received from line card controller obtains A and wants B, the C to this optical cross-matrix, D direction simultaneously to send data to signal, broadcast, matrix controller is checked B, the C of wavelength-selective switches A and this optical cross-matrix, the state of D wavelength-selective switches interconnect port; If each port is not busy state, controlling the port of wavelength-selective switches A and B, C, the interconnection of D wavelength-selective switches connects, set up communication link, configuration wavelength-selective switches A distributes wavelength, the broadcast singal that wavelength-selective switches A receives is by 3 kinds of different wave lengths, through the port of optical fiber interconnections, be sent to B, C, D wavelength-selective switches, sent by the output port of B, C, D wavelength-selective switches.After off-the-air, cancel the communication link of wavelength-selective switches A and B, C, the interconnection of D wavelength-selective switches.If have one or several for busy condition in the port of selector switch A and B, C, the interconnection of D wavelength-selective switches, 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, carry out the operation of matrix controller in the method for circuit switching operation as shown in Figure 4, specific as follows:
The data packet frame structure that matrix controller is received from line card controller obtains A will, to the B of this optical cross-matrix to sending data, carry out circuit switched to signal, and matrix controller is checked the state of wavelength-selective switches A and wavelength-selective switches B interconnect port; If port is not busy state, controlling the port of wavelength-selective switches A and wavelength-selective switches B interconnection connects, set up communication link, configuration wavelength-selective switches A distributes wavelength, the input signal that wavelength-selective switches A receives is by this wavelength, through the port of AB optical fiber interconnections, be sent to wavelength-selective switches B, sent by its output port.After off-the-air, cancel the communication link of wavelength-selective switches A and wavelength-selective switches B interconnection.If the port of wavelength-selective switches A and wavelength-selective switches B interconnection is busy condition, matrix controller carries out priority ratio, if this requires the priority level of circuit switched higher than working as the ongoing operation of front port, interrupt when the ongoing operation of front 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 again the scene before interruption, work on.If this requires the priority level of circuit switched lower than working as the ongoing operation of front port, matrix controller is busy 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, is only the specific case that object of the present invention, technical scheme and beneficial effect are further described, and the present invention is not defined in this.All any modifications of making, be equal to replacement, improvement etc., within being all included in protection scope of the present invention within scope of disclosure 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 2 to 9 integer, 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, and another 1 port is 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 the each port of wavelength-selective switches, forms and has n
2individual input port and n
2the n of individual output port
2to optical cross-matrix; The line card controller communication connection of matrix controller and fibre channel media, the input/output port communication connection of line card controller and each wavelength-selective switches.
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 is received 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, if this operation is ignored in the low broadcast of priority; If this requires the priority level of exchanges data higher than when the ongoing operation of front port, interrupt when the ongoing operation of front 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 carrying out broadcast operation is as follows:
The data packet frame structure that matrix controller is received from line card controller obtains i and wants other direction to this optical cross-matrix simultaneously to send data to signal, broadcast, matrix controller is checked 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, control the port of wavelength-selective switches i and the interconnection of other wavelength-selective switches and connect, set up communication link, configuration wavelength-selective switches i distributes wavelength, and the broadcast singal that wavelength-selective switches i receives is pressed n
2-a kind of different wave length, through the port of optical fiber interconnections, be sent to other wavelength-selective switches, sent by the output port of other wavelength-selective switches; After off-the-air, cancel the communication link of wavelength-selective switches i and the interconnection of other wavelength-selective switches; If have one or several for busy condition in the port of selector switch i and the interconnection of other wavelength-selective switches, 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 carrying out circuit switching operation is as follows:
The data packet frame structure that matrix controller is received from line card controller obtains i will, to the j of this optical cross-matrix to sending data, carry out circuit switched to signal, and matrix controller is checked the state of wavelength-selective switches i and wavelength-selective switches j interconnect port; If port is not busy state, controlling the port of wavelength-selective switches i and wavelength-selective switches j interconnection connects, set up communication link, configuration wavelength-selective switches i distributes wavelength, the input signal that wavelength-selective switches i receives is by this wavelength, through the port of optical fiber interconnections, be sent to wavelength-selective switches j, sent by its output port; After off-the-air, cancel the communication link of wavelength-selective switches i and wavelength-selective switches j interconnection; If the port of wavelength-selective switches i and wavelength-selective switches j interconnection is busy condition, matrix controller carries out priority ratio, if this requires the priority level of circuit switched higher than working as the ongoing operation of front port, interrupt when the ongoing operation of front port, keep the scene intact, connect i j interconnect port and set up communication link, carry out transfer of data; After transfer of data completes, remove communication link; Return to again the scene before interruption, work on; If this requires the priority level of circuit switched lower than working as the ongoing operation of front port, matrix controller is busy to fibre channel media feedback line, enter wait state, treat that i j interconnect port is idle condition, connect i j 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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| CN104579696A (en) * | 2015-01-23 | 2015-04-29 | 浪潮电子信息产业股份有限公司 | Optical fiber switch system and optical fiber switch |
| CN109257663A (en) * | 2018-08-24 | 2019-01-22 | 中国科学院计算技术研究所 | A kind of optical path alignment method and system towards more rail networks |
| CN110247705A (en) * | 2019-06-21 | 2019-09-17 | 武汉邮电科学研究院有限公司 | A kind of light quantum converged network realization method and system based on multi-core optical fiber |
| CN111682886A (en) * | 2020-06-15 | 2020-09-18 | 北京国科天迅科技有限公司 | Optical fiber avionics network system for data transmission by adopting coaxial cable |
| CN111711468A (en) * | 2020-06-15 | 2020-09-25 | 北京国科天迅科技有限公司 | FC-AE-1553 network system for data transmission by adopting coaxial cable |
| CN112039842A (en) * | 2020-07-23 | 2020-12-04 | 成都光航信科技有限公司 | System and method for implementing FC data transmission based on twisted pair medium |
| CN117579482A (en) * | 2023-12-05 | 2024-02-20 | 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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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104579696A (en) * | 2015-01-23 | 2015-04-29 | 浪潮电子信息产业股份有限公司 | Optical fiber switch system and optical fiber switch |
| CN109257663A (en) * | 2018-08-24 | 2019-01-22 | 中国科学院计算技术研究所 | A kind of optical path alignment method and system towards more rail networks |
| 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 |
| CN110247705A (en) * | 2019-06-21 | 2019-09-17 | 武汉邮电科学研究院有限公司 | A kind of light quantum converged network realization method and system based on multi-core optical fiber |
| CN111682886A (en) * | 2020-06-15 | 2020-09-18 | 北京国科天迅科技有限公司 | Optical fiber avionics network system for data transmission by adopting coaxial cable |
| CN111711468A (en) * | 2020-06-15 | 2020-09-25 | 北京国科天迅科技有限公司 | FC-AE-1553 network system for data transmission by adopting coaxial cable |
| 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 |
| CN112039842A (en) * | 2020-07-23 | 2020-12-04 | 成都光航信科技有限公司 | System and method for implementing FC data transmission based on twisted pair medium |
| 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 |
| CN117579482A (en) * | 2023-12-05 | 2024-02-20 | 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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