CN101039528A - Graded control computer system based on optical packet switch and optical multicast - Google Patents
Graded control computer system based on optical packet switch and optical multicast Download PDFInfo
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- CN101039528A CN101039528A CNA2007100199161A CN200710019916A CN101039528A CN 101039528 A CN101039528 A CN 101039528A CN A2007100199161 A CNA2007100199161 A CN A2007100199161A CN 200710019916 A CN200710019916 A CN 200710019916A CN 101039528 A CN101039528 A CN 101039528A
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Abstract
The present invention discloses a grading control computer system based on the optical packet switch and optical multicast, including at least two groups of CPUs (A), and optical interconnection switching devices linked between the CPUs (A). The optical interconnection switching devices include at least a first level node (1) and a second level node (2). The current HPCS usaully takes use of the centralized control mode: each port has to send the request signals to a central dispatcher after it generates a business, and if the distance is longer, it may introduce a trip delay having a larger request and answer signal. The present invention adopts a grading controlled management style, in which the node is only needed sent requests to the local control unit, thus it can greatly reduce such delay, and at the same time, can reduce the storage and computing pressure of each level control unit.
Description
Technical field
The present invention relates to a kind of grading control computer, relate in particular to a kind of graded control computer system based on light packet switching and light multicast.
Background technology
In the several years in past, in technical field, the development of computational resource does not often catch up with demands of applications.In the middle of some fields, need to share the ability that a large amount of measurement data is strengthened analytical calculation such as the specializations such as climatic simulation in quantum physics experiment, the global range.Simultaneously, in order to satisfy the needs in industries such as scientific research, resource environment, manufacturing industry and service trade and field, wish to develop a collection of large-scale application system based on high-performance calculation and grid, realize the resource-sharing and the collaborative work in industry and field, improve the productivity of industry, promote the informatization of all departments.
The traditional calculating and the communication resource can not satisfy the demands.In the fast-developing process of high-performance calculation, people have proposed to couple together by the various computing resource of network at a high speed with the office zones of different, to solve the thought that " big magnitude " used." grid " notion that the mid-90 proposes is the main implementation method that realizes this thought.
But the bandwidth of electricity is subjected to the influence of factors such as its intrinsic high frequency capacitance, inductive effect and electromagnetic interference, becomes the bottleneck of high speed, high power capacity, low delay transfer of data.
Now, optical fiber and DWDM technology reach its maturity, and Distributed Calculation has been brought to a new height.By optical-fiber network and light interconnection technique at a high speed, the idea that the calculating memory node of a series of distributions is integrated as a computation memory cell all is feasible technically and economically.
The design of HPCS and Grid at present mainly can be divided into optical circuit exchange (OCS), light burst-switched (OBS) and light packet switching aspects such as (OPS) from the angle of light exchange.
Connection based on the light path of permanent static state is set up in the HPCS trial of OCS between node be applicable to the traffic transport that throughput is bigger, but its static characteristic has reduced the utilance of port and link, can not satisfy the demand of user's burst service.
Adopt the OBS technology both can satisfy the demand of the transmission of big file, can satisfy the demand of the transmission of less order again low time delay to high throughput.But the assembling of burst can be introduced bigger burst assembling time delay, can not satisfy the real-time Transmission demand of low time delay.
Summary of the invention
The invention provides and a kind ofly can reduce time delay, satisfy the sudden demand of customer service, improve the graded control computer system based on light packet switching and light multicast of the utilance of link and port.
The present invention adopts following technical scheme:
With two-stage HPCS is example, and the definition first order is a host node, and the second level is from node.Host node has n from node; Each has m CPUs from node.Host node has highest administration level, and management and control n are individual from node, and m CPUs from node administration oneself by that analogy, can realize multistage expansion.The signal that definition is transmitted to host node from node is the signal of setting out on a journey, and host node is the road signal under the signal of transmitting from node is.
Each from node with the signal that produces of m CPUs by dense wave division multipurpose (DWDM) technology and link to each other from the node switching unit, same, n signal that produces from node passes through the DWDM technology and links to each other with host node.
CPUs regularly passes to information such as the idle storage space of oneself, idle computing capability from node by control channel, regularly the information of the own CPUs that is managed is reported to host node from node is same.Main, from node with these information stores in the middle of the storage matrix of own control unit.
After CPUs has task to produce, locate to be assembled into the light grouping at edge router (ER), have the memory capacity of required by task in the packets headers, information such as computing capability if clear and definite destination is arranged, then have address information.
Grouping at first this CPU place from intra-node exchange, control unit is Task Distribution according to packets headers information or seeks the destination, if there is not the purpose unit of satisfying the demand, then forwards the packet to host node.
Host node is according to respectively carrying out equilibrium from the node situation, seeks to satisfy suitablely for node, and task is forwarded to accordingly from node, and what obtain task is the suitable purpose CPUs of Task Distribution according to packets headers information from node again.
The light crosspoint adopts multicasting technology to realize the high-speed high capacity exchanges data.
Compared with prior art, the present invention has following advantage:
The present invention can realize the interconnection of distributed high-performance microprocessor in enormous quantities and the real-time, interactive of the high-speed light data flow that happen suddenly in a large number and shared.The distributed control of high-speed high capacity The data, differentiated control pattern are stored and are handled, and can reduce the calculating and the storage pressure of control unit, help realizing multistage expansion, realize the connection between the remote CPUs easily.Adopt asynchronous switch mode and OPS and multicasting technology can reduce time delay, satisfy the sudden demand of customer service, improve the utilance and the data transmission efficiency of link and port, avoid clock synchronization simultaneously.
Present HPCS adopts centralized control more, and each port must send request signal to central scheduler after professional the generation arranged, if distance is far away, then may introduce request and the bigger round-trip delay of recall signal.The present invention adopts the management mode of grading control, and node only needs to send request to local control unit, can reduce this type of time delay greatly, simultaneously, can reduce the storage and the calculating pressure of every grade of control unit;
The present invention adopts asynchronous switch mode, can reduce the data stand-by period, satisfies the sudden demand of customer service, avoids the demand to synchronizing clock signals, has increased the flexibility of operation exchange.Particularly when carrying out multistage expansion, if adopt synchronous exchange, the synchronous difficulty between the nodes at different levels is bigger, adopts asynchronous switch mode can avoid this problem;
The present invention adopts the DWDM technology can make full use of the big characteristics of fiber capacity, avoided the less transmission bottleneck of signal of telecommunication capacity, improve the utilance of channel, optical fiber is compared with the electrical transmission switching technology at aspects such as antijamming capability and prices in addition also incomparable advantage;
The present invention adopts the OPS technology to realize exchanges data, both can avoid OCS static characteristic caused than low port and link utilization, the bigger assembling time delay that also can avoid among the OBS burst assembling to be introduced can satisfy the demand of the sudden and real-time Transmission of customer service;
The present invention adopts multicasting technology, compares with point-to-point unicast technique, can improve data transmission efficiency greatly;
Present HPCS structure is when realizing multistage expansion, and each level often all needs to carry out the conversion of photoelectricity light, and exchange velocity and throughput all can be affected.When the Multistage Control technology that the present invention adopts is carried out multistage expansion, need not to carry out repeatedly the conversion of photoelectricity light, can improve throughput greatly and reduce time delay.
Description of drawings
Fig. 1 is a two-stage system of the present invention line structure schematic diagram up and down.
Fig. 2 is a node control cellular construction schematic diagram of the present invention.
Fig. 3 is the m level system structural representation of the embodiment of the invention.
Among the figure, A, CPUs, 11, first order node control unit, 12, first order node optical crosspoint, 13, first order node optical multiplexer, 14, first order node optical beam splitter, 15, first order node fiber delay line, 211, the 1st the node optical multiplexer in the second level, 212, the 1st the node optical wave multiplexer in the second level, 213, the 1st the node optical beam splitter in the second level, 214, the 1st the node optical crosspoint in the second level, 215, the 1st node control unit, the second level, 216, the 1st the node optical crosspoint in the second level, 217, edge router, 218, the 1st the node fiber delay line in the second level, A11, road wavelength conflict-solving module under the 1st node in the second level, A12, the 1st node in second level wavelength conflict-solving module of setting out on a journey, An1, road wavelength conflict-solving module under n the node in the second level, An2, n the node in second level wavelength conflict-solving module of setting out on a journey.
Embodiment
The present invention proposes the novel grading control HPCS based on OPS and light multicast.With two-stage HPCS is example, and the definition first order is a host node, and the second level is from node.Host node has n from node; Each has m CPUs from node.Host node has highest administration level, and management and control n are individual from node, and m CPUs from node administration oneself by that analogy, can realize multistage expansion.The signal that definition is transmitted to host node from node is the signal of setting out on a journey, and host node is the road signal under the signal of transmitting from node is.
Each from node with the signal that produces of m CPUs by dense wave division multipurpose (DWDM) technology and link to each other from the node switching unit, same, n signal that produces from node passes through the DWDM technology and links to each other with host node.
CPUs regularly passes to information such as the idle storage space of oneself, idle computing capability from node by control channel, regularly the information of the own CPUs that is managed is reported to host node from node is same.Main, from node with these information stores in the middle of the storage matrix of own control unit.
After CPUs has task to produce, locate to be assembled into the light grouping at edge router (ER), have the memory capacity of required by task in the packets headers, information such as computing capability if clear and definite destination is arranged, then have address information.
Grouping at first this CPU place from intra-node exchange, control unit is Task Distribution according to packets headers information or seeks the destination, if there is not the purpose unit of satisfying the demand, then will divide into groups to pass through the light top and bottom path unit forwards to host node.
The light top and bottom path unit is made up of tunable fiber cloth lattice grating and optical circulator.
Host node is according to respectively carrying out equilibrium from the node situation, seeks to satisfy suitablely for node, and task is forwarded to accordingly from node, and what obtain task is the suitable purpose CPUs of Task Distribution according to packets headers information from node again.
The light crosspoint adopts multicasting technology to realize the high-speed high capacity exchanges data.
With reference to Fig. 1, a kind of graded control computer system based on light packet switching and light multicast comprises at least 2 group CPUA, is connected with light interconnection switch between CPUA, and light interconnection switch comprises the 1st grade of node 1 and the 2nd grade of node 2 at least, wherein:
The 1st grade of node is by first order control unit 1
1, first order light crosspoint 1
2, first order optical multiplexer 1
3And first order beam splitter 1
4Form first order optical multiplexer 1
3Output and first order beam splitter 1
4Input connect first order beam splitter 1
4Output and first order control unit 1
1Input connect, the signal that is used for containing packets headers is sent to first order control unit 1
1, first order beam splitter 1
4Another output by fiber delay line 1
5With first order light crosspoint 1
2Input connect, the signal that is used for containing data is sent to first order light crosspoint, first order control unit 1
1Control signal output ends and first order light crosspoint 1
2Signal input end connect, be used to control first order light crosspoint 1
2To carry out the multicast exchange of data;
The 2nd grade of node comprises n two-level node at least, and n 〉=2 and n are natural number, and this two-level node 2 comprises second level optical multiplexer 21
1, second level wave multiplexer 21
2, second level beam splitter 21
3, light top and bottom path unit 21
4, node control unit, the second level 21
5And second level node optical crosspoint 21
6, the output end of main of CPUs passes through edge router 21 respectively
7Signal sending end and second level optical multiplexer 21
1Input connect, be used for multipath light signal adopted that dense wave division multipurpose (DWDM) technology is multiplexing advances optical fiber, second level optical multiplexer 21
1Output through optical fiber and wave multiplexer 21
2Input connect above-mentioned first order light crosspoint 1
2Output respectively through following road wavelength conflict-solving module A1
1..., An
1Wave multiplexer 21 with each two-level node
2... 2n
2Another input connect this wave multiplexer 21
2Be used for first order light crosspoint 1
2The following road signal multiplexing that produces advances two-level node, wave multiplexer 21
2Output and second level beam splitter 21
3Input connect second level beam splitter 21
3Output through fiber delay line 21
8With light top and bottom path unit, the second level 21
4Input connect second level beam splitter 21
3Another node control unit, output second level 21
5Signal input end connect second level beam splitter 21
3Be used for data-signal being separated light top and bottom path unit 21 with the packets headers control signal
4Output and second level node optical crosspoint 21
6Input connect second level node optical crosspoint 21
6Output be connected with the signal receiving end of second level edge router respectively, and the light signal that receives is converted to the internal memory that the signal of telecommunication is sent to CPUs, node control unit, the second level 21
5Control signal output ends and light top and bottom path unit 21
4Signal input end connect, be used to control light top and bottom path unit 21
4State, with needs respectively separately in the data of the first order and second level exchange, another control signal output ends and second level node optical crosspoint 21
6Signal input end connect, be used to control second level light crosspoint 21
6To carry out the multicast exchange of data, each light top and bottom path unit, second level 21
4Following road signal output part respectively through the wavelength conflict-solving module A1 that sets out on a journey
2..., An
2With first order optical multiplexer 1
3Input connect, be used for and need set out on a journey to first order node in the data of first order node switching, with reference to Fig. 2, first order node control unit 1
1, two-level node control unit 21
5Or m level node control unit adopts control unit to realize, this control unit is by optical-electrical converter B1, recognition unit B2, control unit interface B3 and storage matrix B4 form, the input of optical-electrical converter B1 is as the signal input end of control unit, the output of optical-electrical converter B1 is connected with the input of recognition unit B2, the output of recognition unit B2 is connected with the input of control unit interface B3 and storage matrix B4 respectively, the control signal that recognition unit B2 will have the address that has a definite purpose directly transfers to control unit interface B3, and the control signal that will not have destination address transfers to storage matrix B4, by storage matrix B4 is polled as the Task Distribution destination, the output of storage matrix B4 is connected with control unit interface B3 input, and the output of control unit interface B3 is as the control signal output ends of control unit.
With reference to Fig. 3,
A kind of m level computer system based on light packet switching and light multicast comprises n
(m-1)Group CPU is connected with light interconnection switch between CPU, it is characterized in that comprising m level light interconnection switch, wherein:
The 1st grade of node is by first order control unit, first order light crosspoint, first order optical multiplexer and first order beam splitter are formed, the output of first order optical multiplexer is connected with the input of first order beam splitter, an output of first order beam splitter is connected with the input of first order control unit, the signal that is used for containing packets headers is sent to first order control unit, another output of first order beam splitter is connected by the input of fiber delay line with first order light crosspoint, the signal that is used for containing data is sent to first order light crosspoint, the control signal output ends of first order control unit is connected with the signal input end of first order light crosspoint, is used to control first order light crosspoint to carry out the multicast exchange of data;
The 2nd grade of node comprises n two-level node at least, n 〉=2 and n are natural number, this two-level node comprises second level optical multiplexer, second level wave multiplexer, second level beam splitter, the light top and bottom path unit, node control unit, the second level and second level node optical crosspoint, the following road signal output part of the light top and bottom path unit of third level node solves the unit through the wavelength conflict of setting out on a journey respectively and is connected with the input of second level optical multiplexer, be used for the signal of setting out on a journey with third level node and adopt that dense wave division multipurpose (DWDM) technology is multiplexing advances second level node, the output of second level optical multiplexer is connected with an input of wave multiplexer through optical fiber, the output of above-mentioned first order light crosspoint passes through down respectively, and road wavelength conflict-solving module is connected with another input of the wave multiplexer of each two-level node, this wave multiplexer is used for the following road signal multiplexing that first order light crosspoint produces is advanced second level node, the output of wave multiplexer is connected with the input of second level beam splitter, an output of second level beam splitter is connected with an input of light top and bottom path unit, the second level through fiber delay line, another output of second level beam splitter is connected with the signal input end of node control unit, the second level, beam splitter is used for data-signal is separated with the packets headers control signal, the output of light top and bottom path unit is connected with the input of second level node optical crosspoint, the output of second level node optical crosspoint is connected with the signal receiving end of second level edge router respectively, and the light signal that receives is converted to the internal memory that the signal of telecommunication is sent to CPUs, a control signal output ends of node control unit, the second level is connected with the signal input end of light top and bottom path unit, be used to control the state of light top and bottom path unit, needs are separated in the data of the first order and second level exchange respectively, another control signal output ends is connected with the signal input end of second level node optical crosspoint, be used to control second level light crosspoint to carry out the multicast exchange of data, the following road signal output part of each light top and bottom path unit, second level is connected with the input of first order optical multiplexer through the wavelength conflict-solving module of setting out on a journey respectively, is used for and need sets out on a journey to first order node in the data of first order node switching.
M level node is identical with the 2nd grade of node structure, comprises n altogether
(m-1)Individual m level node, n, m 〉=2 and n, m is a natural number, this m level node comprises m level optical multiplexer, m level wave multiplexer, m level beam splitter, m level light top and bottom path unit, m level node control unit and m level node optical crosspoint, the output end of main of CPUs is connected with the input of m level optical multiplexer through the signal sending end of edge router respectively, be used for multipath light signal adopted that dense wave division multipurpose (DWDM) technology is multiplexing advances optical fiber, the output of m level optical multiplexer is connected with an input of wave multiplexer through optical fiber, the output of m-1 level light crosspoint passes through down respectively, and road wavelength conflict-solving module is connected with another input of the wave multiplexer of each m level node, this m level wave multiplexer is used for the following road signal multiplexing that m-1 level light crosspoint produces is advanced m level node, the output of m level wave multiplexer is connected with the input of m level beam splitter, an output of m level beam splitter is connected with an input of m level light top and bottom path unit through fiber delay line, the signal input end of another output m level node control unit of m level beam splitter connects, m level beam splitter is used for data-signal is separated with the packets headers control signal, the output of m level light top and bottom path unit is connected with the input of m level node optical crosspoint, the output of m level node optical crosspoint is connected with the signal receiving end of m level edge router respectively, and the light signal that receives is converted to the internal memory that the signal of telecommunication is sent to CPUs, a control signal output ends of m level node control unit is connected with the signal input end of m level light top and bottom path unit, be used to control the state of m level light top and bottom path unit, needs are separated in the data of m-1 level and the exchange of m level respectively, another control signal output ends is connected with the signal input end of m level node optical crosspoint, be used to control m level light crosspoint to carry out the multicast exchange of data, the following road signal output part of each m level light top and bottom path unit is connected with the input of m-1 level optical multiplexer through the wavelength conflict-solving module of setting out on a journey respectively, is used for and need sets out on a journey to m-1 level node in the data of m-1 level node switching.
Claims (2)
1, a kind of graded control computer system based on light packet switching and light multicast, comprise at least 2 group CPU (A), between CPU (A), be connected with light interconnection switch, it is characterized in that light interconnection switch comprises the 1st grade of node (1) and the 2nd grade of node (2) at least, wherein:
The 1st grade of node is by first order control unit (1
1), first order light crosspoint (1
2), first order optical multiplexer (1
3) and first order beam splitter (1
4) form first order optical multiplexer (1
3) output and first order beam splitter (1
4) input connect first order beam splitter (1
4) output and first order control unit (1
1) input connect, the signal that is used for containing packets headers is sent to first order control unit (1
1), first order beam splitter (1
4) another output by fiber delay line (1
5) and first order light crosspoint (1
2) input connect, the signal that is used for containing data is sent to first order light crosspoint, first order control unit (1
1) control signal output ends and first order light crosspoint (1
2) signal input end connect, be used to control first order light crosspoint (1
2) to carry out the multicast exchange of data;
The 2nd grade of node comprises n two-level node at least, and n 〉=2 and n are natural number, and this two-level node (2) comprises second level optical multiplexer (21
1), second level wave multiplexer (21
2), second level beam splitter (21
3), light top and bottom path unit (21
4), node control unit, the second level (21
5) and second level node optical crosspoint (21
6), the output end of main of CPUs passes through edge router (21 respectively
7) signal sending end and second level optical multiplexer (21
1) input connect, be used for multipath light signal adopted that dense wave division multipurpose (DWDM) technology is multiplexing advances optical fiber, second level optical multiplexer (21
1) output through optical fiber and wave multiplexer (21
2) input connect above-mentioned first order light crosspoint (1
2) output respectively through following road wavelength conflict-solving module (A1
1..., An
1) with the wave multiplexer (21 of each two-level node
2... 2n
2) another input connect this wave multiplexer (21
2) be used for first order light crosspoint (1
2) the following road signal multiplexing that produces advances two-level node, wave multiplexer (21
2) output and second level beam splitter (21
3) input connect second level beam splitter (21
3) output through fiber delay line (21
8) and light top and bottom path unit, the second level (21
4) input connect second level beam splitter (21
3) another node control unit, output second level (21
5) signal input end connect second level beam splitter (21
3) be used for data-signal being separated light top and bottom path unit (21 with the packets headers control signal
4) output and second level node optical crosspoint (21
6) input connect second level node optical crosspoint (21
6) output be connected with the signal receiving end of second level edge router respectively, and the light signal that receives is converted to the internal memory that the signal of telecommunication is sent to CPUs, node control unit, the second level (21
5) control signal output ends and light top and bottom path unit (21
4) signal input end connect, be used to control light top and bottom path unit (21
4) state, with needs respectively separately in the data of the first order and second level exchange, another control signal output ends and second level node optical crosspoint (21
6) signal input end connect, be used to control second level light crosspoint (21
6) to carry out the multicast exchange of data, each light top and bottom path unit, second level (21
4) following road signal output part respectively through the wavelength conflict-solving module (A1 that sets out on a journey
2..., An
2) and first order optical multiplexer (1
3) input connect, be used for and need set out on a journey to first order node in the data of first order node switching.
2, the graded control computer system based on light packet switching and light multicast according to claim 1 is characterized in that first order node control unit (1
1), two-level node control unit (21
5), or m level node control unit adopts control unit to realize, this control unit is by optical-electrical converter (B1), recognition unit (B2), control unit interface (B3) and storage matrix (B4) are formed, the input of optical-electrical converter (B1) is as the signal input end of control unit, the output of optical-electrical converter (B1) is connected with the input of a recognition unit (B2), the output of recognition unit (B2) is connected with the input of control unit interface (B3) and storage matrix (B4) respectively, the control signal that recognition unit (B2) will have the address that has a definite purpose directly transfers to control unit interface (B3), and the control signal that will not have destination address transfers to storage matrix (B4), by storage matrix (B4) is polled as the Task Distribution destination, the output of storage matrix (B4) is connected with control unit interface (B3) input, and the output of control unit interface (B3) is as the control signal output ends of control unit.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877804A (en) * | 2010-07-08 | 2010-11-03 | 北京邮电大学 | Network coding based wavelength conflict solution in WDM (Wavelength Division Multiplex) multicast network |
| CN101272631B (en) * | 2008-05-06 | 2011-01-05 | 东南大学 | Optical packet head extracting structure used for asynchronous optical packet switching network |
| CN103581772A (en) * | 2012-08-07 | 2014-02-12 | 中兴通讯股份有限公司 | Method and device for achieving optical burst add-drop multiplexer |
| WO2015161403A1 (en) * | 2014-04-21 | 2015-10-29 | 华为技术有限公司 | Computer system interconnection device and signal transmission method |
| CN103873833B (en) * | 2012-12-10 | 2017-06-20 | 常州华龙通信科技有限公司 | Digital video light exchanges transmission platform |
| US9712901B2 (en) | 2014-04-18 | 2017-07-18 | Huawei Technologies Co., Ltd. | Interconnection system, apparatus, and data transmission method |
| CN108833243A (en) * | 2018-06-07 | 2018-11-16 | 浙江大学 | A kind of high speed optical data bus based on passive optic bus technology |
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- 2007-02-02 CN CN200710019916A patent/CN100584105C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272631B (en) * | 2008-05-06 | 2011-01-05 | 东南大学 | Optical packet head extracting structure used for asynchronous optical packet switching network |
| CN101877804A (en) * | 2010-07-08 | 2010-11-03 | 北京邮电大学 | Network coding based wavelength conflict solution in WDM (Wavelength Division Multiplex) multicast network |
| CN101877804B (en) * | 2010-07-08 | 2013-06-26 | 北京邮电大学 | Network coding based wavelength conflict solution in WDM (Wavelength Division Multiplex) multicast network |
| CN103581772A (en) * | 2012-08-07 | 2014-02-12 | 中兴通讯股份有限公司 | Method and device for achieving optical burst add-drop multiplexer |
| CN103873833B (en) * | 2012-12-10 | 2017-06-20 | 常州华龙通信科技有限公司 | Digital video light exchanges transmission platform |
| US9712901B2 (en) | 2014-04-18 | 2017-07-18 | Huawei Technologies Co., Ltd. | Interconnection system, apparatus, and data transmission method |
| WO2015161403A1 (en) * | 2014-04-21 | 2015-10-29 | 华为技术有限公司 | Computer system interconnection device and signal transmission method |
| CN105594222A (en) * | 2014-04-21 | 2016-05-18 | 华为技术有限公司 | Computer system interconnection device and signal transmission method |
| CN105594222B (en) * | 2014-04-21 | 2019-07-12 | 华为技术有限公司 | A kind of computer system interconnection means and method for transmitting signals |
| CN108833243A (en) * | 2018-06-07 | 2018-11-16 | 浙江大学 | A kind of high speed optical data bus based on passive optic bus technology |
| CN108833243B (en) * | 2018-06-07 | 2020-05-29 | 浙江大学 | High-speed optical data bus based on passive optical bus technology |
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