CN106776460A - Data center interconnection structure and data communications method based on fin topological structure - Google Patents
Data center interconnection structure and data communications method based on fin topological structure Download PDFInfo
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Abstract
The invention discloses a kind of data center interconnection structure and data communications method based on fin topological structure, structure includes server, rack, floor array waveguide optical grating, top layer array waveguide grating, wherein, several servers and a floor array waveguide optical grating are set in each rack, and each server is interconnected with the floor array waveguide optical grating respectively；Top layer array waveguide grating has several, and each is connected with all of floor array waveguide optical grating in the data center interconnection structure, forms the fin topological structure of Connected degree high.The structure realizes the light network between server, escapable cost and energy consumption using passive device, while provide a plurality of disjoint path can to the information transfer of any two-server, effectively reduces network blocking probability, increases communication efficiency.The structure, can also increase the reliability of system, and when top layer array waveguide grating breaks down, signal still can be by other disjoint path transmissions to destination server.
Description
Technical field
The present invention relates to data center's intercommunication research field, more particularly to a kind of number based on fin topological structure
According to hub interconnection structure and data communications method, the data center interconnection structure is by multiple battle arrays based on fin topological structure
The two-layer data center interconnection structure of train wave guide grating composition.
Background technology
As emerging internet service in recent years is to mass data storage and the demand high for the treatment of, data center in scale and
Increased sharply in quantity, the data exchange capability to data center proposes requirement higher.At present, data center's intraconnection is universal
Using electric exchange manner, in large-scale data center, although fixed topological structure is carried by the wiring of a complexity high
Supplied huge bandwidth, but interchanger and its between cable numerous long also important sources as power consumption of data center, while
Also the maintenance and upgrading to system brings great difficulty.
Optical communication technique has high bandwidth, the advantage of low-power consumption, can simultaneously improve the network capacity of data center and have
Effect reduces the energy consumption of data center.Although existing part optical interconnected structure proposes that generally existing blocking rate is high, communication efficiency
Difference, and the low problem of reliability.
Therefore, studying a kind of communication efficiency high, power consumption and the low data center interconnection structure of blocking rate and data communication side
Method has important Research Significance and application value.
The content of the invention
Shortcoming and deficiency it is a primary object of the present invention to overcome prior art, there is provided one kind is based on fin topology knot
The data center interconnection structure of structure, the structure can improve communication efficiency between data center's internal server, reduce power consumption and
Blocking rate and raising reliability.
Another object of the present invention is to provide a kind of data communications method based on above-mentioned data center interconnection structure, should
Method can realize the information transfer of any two-server, effectively reduce network blocking probability.
The purpose of the present invention is realized by following technical scheme：Data center interconnection knot based on fin topological structure
Structure, including server, rack, floor array waveguide optical grating, top layer array waveguide grating, wherein, set in each rack some
Individual server and a floor array waveguide optical grating, each server are interconnected with the floor array waveguide optical grating respectively；The top
Layer array waveguide grating has several, each and all of floor array waveguide optical grating phase in the data center interconnection structure
Even；The server includes main frame, optical transceiver module, photoelectric conversion module and tunable transmitter, and optical transceiver module is used to receive
Illuminated message, photoelectric conversion module is used to realize the conversion of optical signal and electric signal, and tunable transmitter is used to send out as desired
Send the light of different wave length.Wavelength by controlling tunable transmitter of the invention, with reference to floor array waveguide optical grating, top layer array
The annexation of waveguide optical grating, provides a plurality of disjoint path can to the information transfer of any two-server, effectively subtract
Small network blocking probability, increases communication efficiency.
The floor array waveguide optical grating, top layer array waveguide grating use the N*N type array waveguide gratings of same specification,
There are N number of input port and N number of output port.
In each rack, the numbering for setting server is the K from K+1 to N<N, wherein, numbering is the server of K+j
Optical output port is connected with the K+j input port of floor array waveguide optical grating, and numbering is the light input end of the server of K+j
Mouth is connected with the K+j output port of floor array waveguide optical grating.
The floor array waveguide optical grating is as follows with the concatenate rule of top layer array waveguide grating：Floor array waveguide optical grating
Total N number of, numbering is 1 to N；Total K of top layer array waveguide grating, numbering is 1 to K；Numbering is the floor array Waveguide of m
N-th input interface of grid is connected with m-th output interface of the top layer array waveguide grating that numbering is n；As m≤K, numbering
For n-th output interface of the floor array waveguide optical grating of m is defeated with K+1-m of the top layer array waveguide grating that numbering is n
Incoming interface is connected, and as m ＞ K, numbering is n-th output interface and the top layer battle array that numbering is n of the floor array waveguide optical grating of m
The N+K+1-m input interface of train wave guide grating is connected.
A kind of data communications method based on above-mentioned data center interconnection structure, including step：
(1) according to the annexation between server, top layer array waveguide grating, floor array waveguide optical grating, definition clothes
Be engaged in device address be (X, Y), X represent the server where floor array waveguide optical grating numbering (1≤X≤N)；Y is represented should
Server and the numbering (K+1≤Y≤N) of floor array waveguide optical grating connectivity port；
(2) when source server (a1, b1) needs to send data to destination server (a2, b2), two clothes are judged first
Whether business device is that whether i.e. a1==a2 sets up in same floor array waveguide optical grating, if so, this is transmitted as being passed in rack
Defeated, then Self address information and the data to be sent directly are loaded into wavelength for λ by source server (a1, b1)POptical signal on
(P=(b1+b2-2) mod (N)), and destination server (a2, b2) is sent to, the transmission of data is completed, if not, then perform
Step (3)；
(3) definition c=| a1-a2 |, and judge the value of c, if c<K, then perform (4th) step, if K≤c≤N-K, performs
(5th) step, if c>N-K, then perform (6th) step；
(4) judge in two racks, whether address is two servers of (a1, b3) and (a2, b3) while not occupied
With (wherein, K+1≤b3≤K+c), if without qualified server, (7th) step is performed, if so, first checking (a1, b1)
Whether (a2, b1) server group or (a1, b2) and (a2, b2) server group have meets condition, if meeting, directly chooses
Wherein meet condition one group is operated (i.e. b3=b1 or b3=b2), otherwise, is selected from the server for meeting condition at random
One group is taken to be operated.The method that source server is first according to transmission in rack, by Self address information and destination server ground
Location information and the data transfer of transmission is needed to server (a1, b3), then by the information by photoelectricity electro-optic conversion, by signal
Wavelength is loaded into for λQOptical signal on (Q=K-1+c), transmit to server (a2, b3), according still further in rack transmit side
Method, transfers information to destination server (a2, b2), completes the transmission of information；
(5) judge in two racks, whether address is two servers of (a1, b4) and (a2, b4) while not occupied
With (wherein, K+c≤b4≤2K-1+c).If without qualified server, performing (7th) step, if so, first check (a1,
B1) whether have and meet condition with (a2, b1) server group or (a1, b2) and (a2, b2) server group, if meeting, directly
Selection wherein meets a group of condition and is operated (i.e. b4=b1 or b4=b2), otherwise, at random from the server for meeting condition
Middle one group of selection is operated.The method that source server is first according to transmission in rack, by Self address information and purpose service
Device address information and need the data transfer of transmission to (a1, b4), then by the information by photoelectricity electro-optic conversion, by signal plus
It is downloaded to wavelength XOOptical signal on (O=2K+c), be transferred to server (a2, b4), according still further in rack transmit mode, will believe
Breath is transferred to destination server (a2, b2), completes the transmission of information；
(6) judge in two racks, whether address is two servers of (a1, b5) and (a2, b5) while not occupied
With (wherein, c+1≤b5≤N).If without qualified server, performing (7th) step, if so, first check (a1, b1) and
Whether (a2, b1) server group or (a1, b2) and (a2, b2) server group have meets condition, if meeting, directly chooses it
Middle meet condition one group is operated (i.e. b5=b1 or b5=b2), otherwise, is chosen from the server for meeting condition at random
One group is operated.Source server first in rack transmit by way of, by Self address information and destination server address
Information and the data transfer of transmission is needed to (a1, b5), then by the information by photoelectricity electro-optic conversion, by signal loading to ripple
λ longMOptical signal on (M=c+K-1), be transferred to server (a2, b5), according still further in rack transmit mode, information is passed
It is defeated to destination server (a2, b2), complete the transmission of information；
(7) the floor array waveguide optical grating that numbering is a1 and numbering is a2 does not find the server that can be joined directly together,
At this time, it may be necessary to server in another floor array waveguide optical grating is used as redirecting, and the server meets condition：Can be with
Source server is connected with the floor array waveguide optical grating where destination server by the method for preceding step (4), (5), (6),
Then by the method in three steps above, the service that numbering in the floor array waveguide optical grating is (a3, b6) is first transferred information to
Device, then destination server is transferred to, complete the transmission of information；If can not find the server for meeting and requiring, the request quilt is judged
Refusal.
The present invention compared with prior art, has the following advantages that and beneficial effect：
1st, the present invention uses multiple N*N types array waveguide grating respectively as floor array waveguide optical grating and top layer array ripple
Guide grating, each floor array waveguide optical grating corresponds to a rack, is connected with multiple top layer array waveguide gratings, forms radiating
Piece topological structure.Compared with other data center interconnection structures for being based on array waveguide grating, the structure does not need special turning
Hair rack, provides a plurality of disjoint path can to the information transfer of any two-server, effectively reduce network blocking probability,
Increase communication efficiency.And based on the structure, the reliability of system can be increased, when top layer array waveguide grating breaks down,
Signal still can be by other disjoint path transmissions to destination server.
2nd, in the present invention, when top layer array waveguide grating breaks down, key-course can occur by the transmission of information
Entanglement or choking phenomenon judge it is which part in structure is broken down, and when server carries out path and chooses,
Exclusion needs the path that the top layer array waveguide grating is supported, then selects other paths.
3rd, rack room transmission is carried out it is recognised that working as according to data communications method in the present invention (4th), (5), (6) step
When, the transmission path of signal has multiple choices, for example：As K≤| a1-a2 |≤N-K, transmission path can be in K+c to 2K-
Selected among 1+c, have K paths, increased alternative leeway, greatly reduce blocking rate, improve communication effect
Rate.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment data center interconnection structure.
Fig. 2 is the flow chart of the present embodiment data communications method.
Specific embodiment
In order that the auditor of Patent Office especially the public can be more clearly understood from technical spirit of the invention and having
Beneficial effect, applicant will elaborate by way of example below, but the description to embodiment is not to this hair
The limitation of bright scheme, any only formal rather than substantial equivalent transformation according to done by present inventive concept all should
It is considered as technical scheme category.
Embodiment 1
As shown in figure 1, the present embodiment is based on the data center interconnection structure of fin topological structure, it is mainly mutual by rack room
Top layer array waveguide grating evenWith some racks being attached theretoComposition, wherein each rackInside is again by bottom battle array
Train wave guide gratingWith several serversConstitute, the server in each rackQuantity is identical.
ServerInside is mainly connect by main frame, tunable transmitter, photoelectric conversion module, optical transceiver module, light output
Mouth, light input interface etc. are constituted.Main frame is mainly responsible for analysis, treatment and the storage of data；Tunable transmitter is used for according to need
Seek the light for sending different wave length；The optical signal that photoelectric conversion module is mainly responsible for receiving is transformed into electric signal, and handle will
The electric signal for transferring out is transformed into optical signal；Optical transceiver module is mainly responsible for providing the light of the outside input server optical signal
Input port, while providing optical output port of the server to outside launching light signal.Its port for receiving optical signal is referred to as
Light-receiving port, the port for launching optical signal is referred to as light emission port.
The present embodiment floor array waveguide optical grating, top layer array waveguide grating are using the N*N type Waveguide arrays of same specification
Grating, that is, have N number of input port and N number of output port.Its data center interconnection knot based on fin topological structure for constituting
Structure can at most support that N number of rack, single interior of equipment cabinet can at most support that (K is top layer array waveguide grating to N-K server
Quantity), the optical output port of server is connected with the input interface of floor array waveguide optical grating, the light input end of server mouthful
It is connected with the output optical interface of floor array waveguide optical grating, by changing the optical wavelength that server is launched, you can selection and machine
Server transmission data in the other servers in cabinet inside or other racks.Each rack has respective numbering, each
The server of interior of equipment cabinet also has respective numbering.RackWith top layer array waveguide gratingBetween, serverWith bottom
Array waveguide gratingBetween connection need to meet following rule：
1) in any rackInside, serverNumbering since K+1, to N cut-off.Numbering is the server of K+mOptical output port and floor array waveguide optical gratingThe K+m input interface be connected；Numbering is the server of K+m
Light input end mouthful and floor array waveguide optical gratingThe K+m output interface be connected.
2) for any rackIf rack numbering is m (rack numbering can be for 1,2,3 ... N), then the bottom in the rack
Array waveguide gratingN-th input interface and the top layer array waveguide grating that numbering is nM-th output interface be connected
(n≤K)；Numbering is the floor array waveguide optical grating of mN-th output interface and the top layer array waveguide grating that numbering is n(K+1-m) individual input interface be connected (as m ＞ K, then with numbering be n top layer array waveguide grating(N+K+
1-m) individual input interface is connected).
Based on above-mentioned rule, the routing table of the array waveguide grating shown in table 1 is set up.
Table 1 is the routing table of N*N type array waveguide gratings
| Wavelength X | 1 | 2 | 3 | … | K-1 | K | K+1 | … | N-K-1 | N-K | N-K+1 | … | N-2 | N-1 | N |
| 1 | λ0 | λ1 | λ2 | … | λK-2 | λK-1 | λK | … | λN-K-2 | λN-K-1 | λN-K | … | λN-3 | λN-2 | λN-1 |
| 2 | λ1 | λ2 | λ3 | … | λK-1 | λK | λK+1 | … | λN-K-1 | λN-K | λN-K+1 | … | λN-2 | λN-1 | λ0 |
| 3 | λ2 | λ3 | λ4 | … | λK | λK+1 | λK+2 | … | λN-K | λN-K+1 | λN-K+2 | … | λN-1 | λ0 | λ1 |
| … | … | … | … | … | … | … | … | … | … | … | … | … | … | … | |
| K-1 | λK-2 | λK-1 | λK | … | λ2K-4 | λ2K-3 | λ2K-2 | … | λN-4 | λN-3 | λN-2 | … | λK-5 | λK-4 | λK-3 |
| K | λK-1 | λK | λK+1 | … | λ2K-3 | λ2K-2 | λ2K-1 | … | λN-3 | λN-2 | λN-1 | … | λK-4 | λK-3 | λK-2 |
| K+1 | λK | λK+1 | λK+2 | … | λ2K-2 | λ2K-1 | λ2K | … | λN-2 | λN-1 | λ0 | … | λK-3 | λK-2 | λK-1 |
| … | … | … | … | … | … | … | … | … | … | … | … | … | … | … | |
| N-K | λN-K-1 | λN-K | λN-K+1 | … | λN-3 | λN-2 | λN-1 | … | λN-2K-3 | λN-2K-2 | λN-2K-1 | … | λN-K-4 | λN-K-3 | λN-K-2 |
| N-K+1 | λN-K | λN-K+1 | λN-K+2 | … | λN-2 | λN-1 | λ0 | … | λN-2K-2 | λN-2K-1 | λN-2K | … | λN-K-3 | λN-K-2 | λN-K-1 |
| N-K+2 | λN-K+1 | λN-K+2 | λN-K+3 | … | λN-1 | λ0 | λ1 | … | λN-2K-1 | λN-2K | λN-2K+1 | … | λN-K-2 | λN-K-1 | λN-K |
| … | … | … | … | … | … | … | … | … | … | … | … | … | … | … | |
| N-2 | λN-3 | λN-2 | λN-1 | … | λK-5 | λK-4 | λK-3 | … | λN-K-5 | λN-K-4 | λN-K-3 | … | λN-6 | λN-5 | λN-4 |
| N-1 | λN-2 | λN-1 | λ0 | … | λK-4 | λK-3 | λK-2 | … | λN-K-4 | λN-K-3 | λN-K-2 | … | λN-6 | λN-4 | λN-3 |
| N | λN-1 | λ0 | λ1 | … | λK-3 | λK-2 | λK-1 | … | λN-K-3 | λN-K-2 | λN-K-1 | … | λN-4 | λN-3 | λN-2 |
With reference to table 1, it is known that, for same interior of equipment cabinet, should by the signal of server K+i to server K+j (i ≠ j)
Using wavelength XnIt is transmitted, its medium wavelength numbering n should meet：
Understand simultaneously, the rack different for any two, such as rack i and rack u (i ≠ u) always have the in rack i
J-th server in j server and rack u, can directly pass through wavelength XPRealize communication, and be up to K kinds selection
(need exist for K much smaller than N, and meet K ＜ N-K), and a kind of a minimum of selection (as 0 ＜ | i-u | ＜ K, then number of path is | i-u
|；As K≤| i-u |≤N-K, then number of path is K；As N-K ＜ | i-u | ＜ N, then number of path is N- | i-u |), can complete
This time communicate, i.e., by multiple top layer array waveguide gratings, it is possible to achieve the data communication of any rack room mulitpath.Wherein
J and P meet equation below：
When certain top layer array waveguide grating break down lead to not be directly connected to when, can by with other top layers battle array
The connection of train wave guide grating, is redirected to realize communication if necessary via other racks.
Above-described embodiment is the present invention preferably implementation method, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (5)
1. the data center interconnection structure of fin topological structure is based on, it is characterised in that including server, rack, bottom battle array
Train wave guide grating, top layer array waveguide grating, wherein, several servers and a floor array waveguide are set in each rack
Grating, each server is interconnected with the floor array waveguide optical grating respectively；The top layer array waveguide grating has several, each
All it is connected with all of floor array waveguide optical grating in the data center interconnection structure；The server includes that main frame, light are received and dispatched
Module, photoelectric conversion module and tunable transmitter, optical transceiver module are used to receive and dispatch optical information, and photoelectric conversion module is used to realize
The conversion of optical signal and electric signal, tunable transmitter is used to send as desired the light of different wave length.
2. the data center interconnection structure based on fin topological structure according to claim 1, it is characterised in that described
Floor array waveguide optical grating, top layer array waveguide grating using the N*N type array waveguide gratings of same specification, that is, have N number of input
Port and N number of output port.
3. the data center interconnection structure based on fin topological structure according to claim 1, it is characterised in that every
In individual rack, set server numbering be from K+1 to N, wherein, K represents the number of top layer array waveguide grating, and K<N, compiles
Number it is connected with the K+j input port of floor array waveguide optical grating for the optical output port of server of K+j, numbering is K+j
The light input end of server mouthful be connected with the K+j output port of floor array waveguide optical grating.
4. the data center interconnection structure based on fin topological structure according to claim 1, it is characterised in that described
Floor array waveguide optical grating is as follows with the concatenate rule of top layer array waveguide grating：Floor array waveguide optical grating has N number of, numbering
For 1 to N；Total K of top layer array waveguide grating, numbering is 1 to K；Numbering is defeated n-th of the floor array waveguide optical grating of m
Incoming interface is connected with m-th output interface of the top layer array waveguide grating that numbering is n；As m≤K, numbering is the bottom battle array of m
N-th output interface of train wave guide grating is connected with the K+1-m input interface of the top layer array waveguide grating that numbering is n,
As m ＞ K, numbering is n-th output interface and the top layer array waveguide grating that numbering is n of the floor array waveguide optical grating of m
The N+K+1-m input interface be connected.
5. the data based on the data center interconnection structure based on fin topological structure described in claim any one of 1-4 are led to
Letter method, it is characterised in that including step：
(1) according to the annexation between server, top layer array waveguide grating, floor array waveguide optical grating, server is defined
Address be (X, Y), X represent the server where floor array waveguide optical grating numbering, 1≤X≤N；Y represents the server
With the numbering of floor array waveguide optical grating connectivity port, K+1≤Y≤N；
(2) when source server (a1, b1) needs to send data to destination server (a2, b2), two servers are judged first
Whether it is that whether i.e. a1==a2 sets up in same floor array waveguide optical grating, if so, this is transmitted as transmission in rack,
Then Self address information and the data to be sent directly are loaded into wavelength for λ by source server (a1, b1)POptical signal on, P=
(b1+b2-2) mod (N), and destination server (a2, b2) is sent to, the transmission of data is completed, if not, then perform step
(3)；
(3) definition c=| a1-a2 |, and judge the value of c, if c<K, then perform (4th) step, if K≤c≤N-K, performs (5th)
Step, if c>N-K, then perform (6th) step；
(4) judge in two racks, whether address is simultaneously no occupied for two servers of (a1, b3) and (a2, b3), its
In, K+1≤b3≤K+c, if without qualified server, performing (7th) step, if so, first check (a1, b1) and (a2,
B1) whether server group or (a1, b2) and (a2, b2) server group have and meet condition, if meeting, directly selection is wherein full
One group of sufficient condition is operated, i.e. b3=b1 or b3=b2, otherwise, is chosen one group from the server for meeting condition at random and is entered
Row operation；The method that source server is first according to transmission in rack, by Self address information and destination server address information with
And the data transfer of transmission is needed to server (a1, b3), then by the information by photoelectricity electro-optic conversion, by signal loading to ripple
A length of λQOptical signal on, Q=K-1+c is transmitted to server (a2, b3), according still further in rack transmit method, information is passed
It is defeated to destination server (a2, b2), complete the transmission of information；
(5) judge in two racks, whether address is simultaneously no occupied for two servers of (a1, b4) and (a2, b4), its
In, K+c≤b4≤2K-1+c, if without qualified server, performing (7th) step, if so, first check (a1, b1) and
Whether (a2, b1) server group or (a1, b2) and (a2, b2) server group have meets condition, if meeting, directly chooses it
Middle meet condition one group is operated, i.e. b4=b1 or b4=b2 otherwise, chooses one from the server for meeting condition at random
Group is operated；The method that source server is first according to transmission in rack, Self address information and destination server address are believed
The data transfer of transmission is ceased and needed to (a1, b4), then by the information by photoelectricity electro-optic conversion, by signal loading to wavelength
λOOptical signal on, O=2K+c is transferred to server (a2, b4), according still further in rack transmit mode, transfer information to
Destination server (a2, b2), completes the transmission of information；
(6) judge in two racks, whether address is simultaneously no occupied for two servers of (a1, b5) and (a2, b5), its
In, c+1≤b5≤N, if without qualified server, performing (7th) step, if so, first check (a1, b1) and (a2,
B1) whether server group or (a1, b2) and (a2, b2) server group have and meet condition, if meeting, directly selection is wherein full
One group of sufficient condition is operated, i.e. b5=b1 or b5=b2, otherwise, is chosen one group from the server for meeting condition at random and is entered
Row operation；Source server first by way of being transmitted in rack, by Self address information and destination server address information with
And the data transfer of transmission is needed to (a1, b5), then by the information by photoelectricity electro-optic conversion, by signal loading to wavelength XM's
On optical signal, M=c+K-1 is transferred to server (a2, b5), according still further to the mode transmitted in rack, transfers information to purpose
Server (a2, b2), completes the transmission of information；
(7) the floor array waveguide optical grating that numbering is a1 and numbering is a2 does not find the server that can be joined directly together, now,
Server in another floor array waveguide optical grating is needed as redirecting, and the server meets condition：Can be taken with source
Business device is connected with the floor array waveguide optical grating where destination server by the method for preceding step (4), (5), (6), then led to
The method above in three steps is crossed, the server that numbering in the floor array waveguide optical grating is (a3, b6) is first transferred information to, then
Destination server is transferred to, the transmission of information is completed；If can not find the server for meeting and requiring, judge that the request is rejected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611202439.8A CN106776460B (en) | 2016-12-23 | 2016-12-23 | Data center interconnection structure and data communications method based on cooling fin topological structure |
Applications Claiming Priority (1)
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| CN108718214A (en) * | 2018-06-14 | 2018-10-30 | 华南师范大学 | Data center's optical interconnected structure and communication means based on mesh topology structure |
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| CN102882811A (en) * | 2012-09-10 | 2013-01-16 | 西安电子科技大学 | Data center light interconnection network system based on array waveguide grating and communication method |
| CN104009941A (en) * | 2014-05-16 | 2014-08-27 | 江苏鼎云信息科技有限公司 | Data center rack internal network structure based on arrayed waveguide grating |
| CN105743580A (en) * | 2016-02-16 | 2016-07-06 | 江苏鼎云信息科技有限公司 | Data center internal network interconnection structure based on multiple arrayed waveguide gratings |
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| CN102882811A (en) * | 2012-09-10 | 2013-01-16 | 西安电子科技大学 | Data center light interconnection network system based on array waveguide grating and communication method |
| CN104009941A (en) * | 2014-05-16 | 2014-08-27 | 江苏鼎云信息科技有限公司 | Data center rack internal network structure based on arrayed waveguide grating |
| CN105743580A (en) * | 2016-02-16 | 2016-07-06 | 江苏鼎云信息科技有限公司 | Data center internal network interconnection structure based on multiple arrayed waveguide gratings |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108718214A (en) * | 2018-06-14 | 2018-10-30 | 华南师范大学 | Data center's optical interconnected structure and communication means based on mesh topology structure |
| CN108718214B (en) * | 2018-06-14 | 2020-06-12 | 华南师范大学 | Data center optical interconnection structure based on grid type topological structure and communication method |
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