WO2016116068A1

WO2016116068A1 - Optical fiber switch system and optical fiber switch

Info

Publication number: WO2016116068A1
Application number: PCT/CN2016/076023
Authority: WO
Inventors: 王恩东; 胡雷钧; 邹定国; 林楷智; 叶丰华
Original assignee: 浪潮电子信息产业股份有限公司
Priority date: 2015-01-23
Filing date: 2016-03-10
Publication date: 2016-07-28
Also published as: CN104579696B; CN104579696A

Abstract

Provided are an optical fiber switch system and an optical fiber switch. The system comprises: at least two optical fiber switches and a software defined network (SDN) controller; all optical fiber switches are connected in sequence and form a ring network; any two neighboring optical fiber switches are connected with multi-core optical fibers, thereby forming multiple optical fiber loops in the ring network; the SDN controller is separately connected to each optical fiber switch, and is used to make configurations such that each optical fiber loop has a transmission port while all other ports are receiving ports. The present invention provides an optical fiber switch system and an optical fiber switch for reducing the complexity of switch network layout.

Description

Optical fiber switch system and a fiber switch

Technical field

The present invention relates to the field of communications technologies, and in particular, to a fiber switch system and a fiber switch.

Background technique

With the development of new technologies such as cloud computing and big data, data center servers are becoming larger and larger, and data exchange networks are facing increasingly stringent challenges, manifested by the rigidity, complexity, and network services of networks in cloud infrastructure. The growth rate is higher than expected, the network capital expenditure and operating costs are increasing, and the concern of network security is increasing. With the increase in the requirements of the switch network, the number of switches in the network is also increasing, which puts higher requirements on the deployment of the switch network.

In the prior art, the switches in the switch network adopt complex network connections. In the switch network, the switches are cross-connected, and the entire network is complicated. As the size of the data center expands, the number of switches in the switch network continues to increase, and the network cabling of the switch is more complicated.

technical problem

In view of this, the present invention provides a fiber switch system and a fiber switch, which can reduce the complexity of the switch network cabling.

Problem solution

Technical solution

In one aspect, the present invention provides a fiber optic switch system comprising:

At least two fiber switches, software-defined network SDN controllers;

All fiber switches are connected in sequence to form a ring network;

Any two adjacent fiber switches are connected by a multi-core fiber to form a plurality of fiber loops in the ring network;

The SDN controllers are respectively connected to each of the fiber switches, and are configured to have one sending port on each fiber loop, and the other ports are receiving ports.

Further, each of the fiber switches includes: a first port group and a second port group;

In each fiber switch, the kth port in the first port group is connected to the k+1 port in the second port group. The nth port in the first port group is connected to the first port in the second port group, wherein the first port group and the second port group in the fiber switch have n ports;

In any two adjacent fiber switches, an i-th port in the second port group of the first fiber switch is connected to an i-th port in the first port group of the second fiber switch;

Where n is a positive integer, the value range of k is [1, n-1], the range of i is [1, n], and k and i are positive integers.

Further, the fiber switch is configured to send and/or receive data in parallel on the plurality of fiber loops according to the configuration of the SDN controller.

Further, the fiber switch is further configured to determine a direction of transmitting data on the fiber loop according to the configuration of the SDN controller, and send data in the determined direction.

Further, the SDN controller is further configured to number the fiber switch, determine a location of the fiber switch that sends the data and the fiber switch that receives the data according to the number, and control the fiber switch and the receiving data according to the position. The fiber switch of the data configures the internal Fibre Channel selector, wavelength selective switch, and opto-electrical converter.

In another aspect, the present invention provides a fiber optic switch comprising:

Multiple ports and Fibre Channel selectors;

The plurality of ports are connected to the ports of other adjacent fiber switches through multi-core fibers to form a ring network and a plurality of fiber loops in the ring network;

The Fibre Channel Selector is configured to select a fiber loop and a transmit port and a receive port on the fiber loop according to the received configuration command, so that one transmit port exists on each fiber loop, and the other ports are receive ports.

Further, the plurality of ports are divided into a first port group and a second port group;

The kth port in the first port group is connected to the k+1th port in the second port group, and the nth port in the first port group is connected to the first port in the second port group, wherein the first port group And n ports in the second port group;

The i-th port in the second port group is connected to the i-th port in the first port group of the external adjacent fiber switch;

Where n is a positive integer, the value range of k is [1, n-1], and the range of i is [1, n], where k and i are A positive integer.

Further, the Fibre Channel selector is further configured to select a plurality of ports on the plurality of fiber loops according to the received configuration command, and send data in parallel through the plurality of ports.

Further, the Fibre Channel Selector is further configured to determine, according to the received configuration instruction, a direction in which data is sent by the port on the fiber loop, and send data through the port in the determined direction.

Further, the method further includes:

The electrical interface Ethernet switch is interconnected with the server, and is configured to receive data sent by the server, and after data exchange, send data of the electrical signal to be sent to the electro-optical converter, and send the electrical signal from the photoelectric converter. Signal data is sent to the server;

The electro-optic converter is connected to the wavelength synthesizer for receiving data of the electrical signal to be sent from the electrical interface Ethernet switch, and converting the electrical signal sent to different fiber switches into Optical signals of different wavelengths, and the converted optical signals to be transmitted are sent to a wavelength combiner;

The wavelength synthesizer is connected to the transmitting port through an optical fiber, and is configured to couple the optical signal to be transmitted into a coupled optical signal, and send the coupled optical signal to the transmitting port;

a channel strobe, configured to strobe a receiving port according to the received first instruction;

At least one wavelength selection switch, each wavelength selection switch corresponding to one receiving port;

The wavelength selection switch is configured to separate an optical signal having a wavelength specified by the second instruction from the received optical signal according to the received second instruction, and send the separated optical signal to the photoelectric converter ;

The photoelectric converter is configured to convert the received optical signal into an electrical signal, and send the converted electrical signal to the electrical interface Ethernet switch.

Advantageous effects of the invention

Beneficial effect

The invention provides a fiber switch system and a fiber switch. The fiber switches in the system are connected in sequence to form a ring network, and any two adjacent fiber switches are connected by a multi-core fiber to form multiple in the ring network. In the fiber loop, the fiber switches exchange data through these fiber loops. The fiber switch that sends data does not need to directly connect to the fiber switch that receives the data. The fiber loop can transmit data between the two fiber switches through the fiber loop. Simple structure, reduced The complexity of network cabling for fiber switch.

Brief description of the drawing

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are Some embodiments of the present invention may also be used to obtain other drawings based on these drawings without departing from the art.

1 is a schematic diagram of a fiber switch system according to an embodiment of the present invention;

2 is a schematic diagram of a ring network of a fiber switch according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a two-dimensional fiber switch network according to an embodiment of the present invention.

4 is a schematic structural diagram of a fiber switch according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a fiber switch according to an embodiment of the present invention.

Invention embodiment

Embodiments of the invention

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts are protected by the present invention. range.

The embodiment of the invention provides a fiber switch system, the system comprising:

At least two fiber switches, SDN (Soft Defined Network) controllers;

All fiber switches are connected in sequence to form a ring network;

A fiber switch system is provided in the embodiment of the present invention. The fiber switches in the system are connected in sequence to form a ring network, and any two adjacent fiber switches are connected by a multi-core fiber to form the ring network. Multiple fiber loops in the network, the fiber switches exchange data through these fiber loops, and the fiber switch that sends data does not need to be directly connected to the fiber switch that receives the data, and can be connected between the two fiber switches through the fiber loop. By transferring data, the structure of the entire network is simple, which reduces the complexity of the network cabling of the fiber switch.

Referring to FIG. 1, FIG. 1 is a schematic diagram of a fiber switch system according to an embodiment of the present invention. In Figure 1, the fiber switches are connected by a multi-core fiber to form a ring network. The downstream end of the fiber switch is connected to a server.

In a possible implementation manner, the system includes: at least two fiber switches, an SDN controller;

The fiber switch includes: a first port group and a second port group, wherein the ports in the first port group are connected to the ports in the second port group, and the fiber switch includes at least one sending Port, at least one receiving port;

All the fiber switches are connected in sequence to form a ring network; the ports in the first port group of the first fiber switch of any two adjacent fiber switches are connected one-to-one with the ports in the second port group of the second fiber switch. Forming a plurality of fiber loops in the ring network;

In a possible implementation, the fiber switch forms a plurality of fiber loops by shifting connections. For example, in each fiber switch, the kth port in the first port group is connected to the k+1 port in the second port group, and the nth port in the first port group and the second port group in the first port group 1 port is connected, wherein the first port group and the second port group in the fiber switch have n ports;

2 is a schematic diagram of a ring network of a fiber switch according to an embodiment of the present invention. In the figure, all the fiber switches are connected in sequence to form a ring network, and the ports of the fiber switch are connected by displacement. In the figure, in any of the fiber switches, the C1 port in the first port group is connected to the C2 port in the second port group, and the C2 port in the first port group is connected to the C3 port in the second port group, and sequentially Shift, The Cn port in the first port group is connected to the C1 port in the second port group. In any two adjacent fiber switches, the C1 port in the second port group of the first fiber switch is connected to the C1 port in the first port group of the second fiber switch; in the second port group of the first fiber switch The C2 port is connected to the C2 port in the first port group of the second fiber switch, and is connected in sequence. The Cn port in the second port group of the first fiber switch is connected to the Cn port in the first port group of the second fiber switch. .

In order to increase the bandwidth between the fiber switches, the fiber switch is configured to transmit and/or receive data in parallel on the plurality of fiber loops according to the configuration of the SDN controller.

In this implementation manner, if a plurality of sending ports are added to one of the fiber switches, the fiber switch can simultaneously transmit data through multiple sending ports, that is, the fiber switch can simultaneously transmit data in multiple fiber loops simultaneously. This increases the bandwidth between the fiber switches and enables dynamic reconstruction of the bandwidth. Each fabric switch has multiple receive ports, and the fabric switch can receive data in parallel in multiple fiber loops simultaneously. For example, if a transmit port is added to one of the fabric switches, the fabric switch can simultaneously transmit data through two transmit ports, that is, the fabric switch can transmit data in two fiber loops, so that the fiber switch can The bandwidth between them has doubled.

In a possible implementation manner, the number of the sending ports of the fiber switch is one. In this implementation, the configurations of the Fibre Channel switches in the system are the same, and all the Fibre Channel switches can be configured uniformly. The configuration process is simple.

In a possible implementation, the fiber switch is further configured to determine a direction of transmitting data on the fiber loop according to the configuration of the SDN controller, and send the data in the determined direction. In this implementation manner, the fiber switches are connected in a ring structure, and data can be transmitted from the left and the right. When one of the fiber switches fails, data is transmitted through the other side of the ring, which increases the reliability of the link. Sex. Through switch management, you can quickly locate faulty switches and support online replacement to increase the maintainability of fiber switches.

The SDN controller is further configured to number the fiber switch according to the data transmission destination of the source fiber switch that sends the data and the data receiving source of the target switch that receives the data, and determine the fiber switch that sends the data according to the number. The location of the Fibre Channel switch that receives the data, and controls the Fibre Channel that sends the data and the Fibre Channel switch that receives the data to the internal Fibre Channel based on that location The selector, wavelength selection switch, and photoelectric converter are configured.

In this implementation manner, the SDN controller may first number the ring-connected fiber switches according to the distance. Because the fiber loops are connected by a fixed shift mode, it is easy to determine the location of the source fiber switch and the target fiber switch, and then The SDN controller can separately control the Fibre Channel selector, the wavelength selection switch, and the channel strobe inside the fiber exchanges of the two data exchanges for proper configuration, so that the data is accurately transmitted and received.

A fiber switch system provided by an embodiment of the present invention includes three fiber switches and one SDN controller D. The three fiber switches are Fibre Channel Switch A, Fibre Channel Switch B, and Fibre Channel Switch C. Each of the first port group and the second port group of the fiber switch has five ports. The five ports of the first port group of the fiber switch A are A11, A12, A13, A14, and A15, and the five ports of the second port group of the fiber switch A are A21, A22, A23, A24, and A25, respectively. The five ports of the first port group of the fiber switch B are B11, B12, B13, B14, and B15, and the five ports of the second port group of the fiber switch B are B21, B22, B23, B24, and B25, respectively. The five ports of the first port group of the fiber switch C are C11, C12, C13, C14, and C15, and the five ports of the second port group of the fiber switch C are C21, C22, C23, C24, and C25, respectively.

The fiber switch A, the fiber switch B, and the fiber switch C are connected by a multi-core fiber. Inside the fiber switch A, A11 is connected to A22, A12 is connected to A23, A13 is connected to A24, A14 is connected to A25, and A15 is connected to A21. The inside of the fiber switch B and the inside of the fiber switch C are connected in a similar manner.

B11 is connected to B22, B12 is connected to B23, B13 is connected to B24, B14 is connected to B25, and B15 is connected to B21. Inside the fiber switch C, C11 is connected to C22, C12 is connected to C23, C13 is connected to C24, C14 is connected to C25, and C15 is connected to C21.

The connection between the fiber switch A and the fiber switch B is as follows: A21 is connected to B11, A22 is connected to B12, A23 is connected to B13, A24 is connected to B14, and A25 is connected to B16. The fiber switch B and the fiber switch C, and the fiber switch C and the fiber switch A are connected in a similar manner.

The SDN controller D is connected to the fiber switch A, the fiber switch B, and the fiber switch C, respectively. The SDN controller configuration A11, B11, and C11 are transmission ports.

The above system may include a plurality of mutually independent fiber loops, which may be equivalent to a plurality of point-to-point transmission systems, and data exchange between each fiber switch enables independent, parallel transmission and reception. Fiber loop group The point-to-point system can be configured by the SDN controller to realize the dynamic reconfigurability of the topology and bandwidth of the switch interconnection system, which can greatly reduce the complexity of cable use and wiring. The configuration of the fiber switch through the SDN controller can be interconnected into a one-dimensional, two-dimensional or multi-dimensional network to realize loop expansion and flexibly increase the switching scale.

The embodiment of the invention further provides a fiber switch, the fiber switch comprising:

Multiple ports and Fibre Channel selectors;

In a possible implementation, the fiber switch forms a plurality of fiber loops by shifting connections. For example, the plurality of ports are divided into a first port group and a second port group;

In order to increase the bandwidth between the fiber switches, the Fibre Channel selector is further configured to select a plurality of ports on the plurality of fiber loops according to the received configuration command, and send data in parallel through the plurality of ports.

In a possible implementation manner, the Fibre Channel Selector is further configured to determine, according to the received configuration instruction, a direction in which data is sent by a port on a fiber loop, and send data through the port in the determined direction.

In a possible implementation, the fiber switch further includes: an electrical interface Ethernet switch, interconnected with the server, configured to receive data sent by the server, and after the data is exchanged, to be sent The data of the electrical signal is sent to the electro-optical converter, and the data of the electrical signal sent by the photoelectric converter is sent to the server;

Wavelength division multiplexing is used to couple optical signals of different wavelengths into a coupled optical signal and transmit it through an optical fiber.

The wavelength specified by the second instruction may be obtained by an external SDN controller from a fiber switch that transmits the optical signal, or may be obtained from a correspondence between a preset wavelength and a fiber switch.

In addition, a fiber switch provided in this embodiment may further include a management processor, and communicates with an external SDN controller through the management processor. For example, the management processor accepts the first instruction and the second instruction sent by the external SDN controller, and sends the first instruction and the second instruction to the channel strobe and the wavelength selection switch respectively.

The external SDN controller can switch the fiber switch to different multi-core fibers through the Fibre Channel selector, that is, switch to different ring networks, which can realize one-dimensional, two-dimensional or even multi-dimensional interconnection of the fiber switch. To form a larger exchange network. The data center can be configured through the SDN controller according to different requirements, and seamlessly expands by switching the loop of the combination of the fiber switches.

As shown in FIG. 3, FIG. 3 is a schematic diagram of a two-dimensional fiber switch network according to an embodiment of the present invention. For the fiber switch 11, the fiber switch 11 belongs to two ring networks, which are: a first ring network connected by the fiber switch 11, the fiber switch 12, the fiber switch 13, and the fiber switch 14; A second ring network is formed by connecting the fiber switch 11, the fiber switch 21, the fiber switch 31, and the fiber switch 41. The external SDN controller can switch the fiber switch 11 to the first ring network or the second ring network by controlling the Fibre Channel selector of the fiber switch 11.

The optical fiber switch provided by the embodiment exchanges data with the server through the electrical interface Ethernet switch, and is used for data exchange between the server and the electrical interface Ethernet switch through electrical signals, so that the optical optical converter and the photoelectric converter are required to perform the data exchange. Conversion between electrical and optical signals. When data needs to be sent out, the electrical Ethernet switch sends the data to be sent to the optical and optical converter. Since the data to be sent may be sent to different fiber switches, in order to distinguish the data sent to different fiber switches. The electrical signals sent to different fiber switches are converted into optical signals of different wavelengths, and the electrical signals sent to the same fiber switch are converted into optical signals of the same wavelength, that is, each target fiber switch corresponds to one wavelength, different target fibers. The wavelengths of the switches are different. When receiving data, the photoelectric converter converts the received optical signal into an electrical signal, and sends the converted electrical signal to the electrical interface Ethernet switch, and after the electrical exchange is performed by the electrical interface Ethernet switch, the exchanged data is sent to server.

In addition, the fiber switches in this embodiment may be connected by a multi-core fiber. The fiber switch in this embodiment may further include a management processor. The external SDN controller is connected to the management processor of each fiber switch, and the external SDN controller communicates with the management processor, and the external SDN controller may The instructions are sent to the management processor, and the instructions are forwarded to the corresponding unit by the management processor. For example, the external SDN controller sends the first instruction to the management processor, the management processor sends the first instruction to the channel gate; the SDN controller sends the second instruction to the management processor, and the management processor The second command is sent to the wavelength selective switch. The SDN controller can also obtain the information of the Fibre Channel switch through the management processor. For example, the SDN controller obtains, by the management processor, all the wavelengths of the optical signals sent by the source fiber switch that sends the data, and each target fiber switch that receives the data. Corresponding target wavelength.

A fiber switch provided by an embodiment of the present invention, as shown in FIG. 4, includes:

The first port group 401 and the second port group 402; the first port group 401 and the second port group 402 have five ports. The five ports of the first port group 401 are D11, D12, D13, D14, and D15, respectively, and the five ports of the second port group 402 are D21, D22, D23, D24, and D25, respectively, where D11 is a transmission port.

D11 is connected to D22, D12 is connected to D23, D13 is connected to D24, D14 is connected to D25, and D15 is connected to D21.

The Fibre Channel Selector 403 is configured to select a fiber loop and a transmit port and a receive port on the fiber loop according to the received configuration command, so that one transmit port exists on each fiber loop, and the other ports are receive ports.

The electrical switch Ethernet switch 404 is interconnected with the server, and is configured to receive data sent by the server, and after performing data exchange, send data of the electrical signal to be sent to the electro-optical converter 405, and send the photoelectric converter 409 The data of the incoming electrical signal is sent to the server;

The electro-optic converter 405 is connected to the wavelength combiner 406, and is configured to receive data of the electrical signal to be sent sent by the electrical interface Ethernet switch 404, and send the data to different fiber switches. The signal is converted into an optical signal of a different wavelength, and the converted optical signal to be transmitted is sent to the wavelength combiner 406;

The wavelength recombiner 406 is connected to the transmitting port through an optical fiber, and is configured to couple the optical signal to be transmitted into a coupled optical signal, and send the coupled optical signal to the sending port;

a channel stroist 407, configured to strobe a receiving port according to the received first instruction;

5 wavelength selection switches 408, each wavelength selection switch 408 corresponding to a receiving port;

The wavelength selection switch 408 is configured to: according to the received second instruction, separate an optical signal having a wavelength specified by the second instruction from the received optical signal, and send the separated optical signal to the photoelectric conversion 409;

The photoelectric converter 409 is configured to convert the received optical signal into an electrical signal, and send the converted electrical signal to the electrical interface Ethernet switch 404.

In addition, the ports in the first port group and the ports in the second port group are respectively connected to ports of an external fiber switch.

Referring to FIG. 5, FIG. 5 is a schematic diagram of a fiber switch according to an embodiment of the present invention. In the figure, E1 ~ En are electrical signals, O1 ~ On are optical signals, Multiplex is a wavelength combiner, and a selector is connected to the wavelength combiner. For the Fibre Channel selector, the fiber shift switch is the first port group and the second port group, wss is the wavelength selection switch, the selector connected to the wss is the channel gate, and the Tx is the transmission of the electrical port Ethernet switch. Port, Rx is the receiving port of the electrical Ethernet switch. The management processor is connected to an external SDN controller.

A fiber switch system and a fiber switch provided by the embodiments of the present invention have the following beneficial effects:

A fiber switch system and a fiber switch are provided in the embodiment of the present invention. The fiber switches in the system are sequentially connected to form a ring network, and any two adjacent fiber switches are connected by a multi-core fiber to form a ring network. Multiple fiber loops are exchanged between the fiber switches through these fiber loops. The fiber switch that sends data does not need to directly connect to the fiber switch that receives the data, and can transfer data between the two fiber switches through the fiber loop. The structure of the entire network is simple, which reduces the complexity of the network cabling of the fiber switch.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying between these entities or operations. There are any such actual relationships or sequences. Furthermore, the term "comprises" or "comprises" or "comprises" or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element defined by the phrase "comprising a ...", without further limitation, does not exclude the presence of additional equivalents in the process, method, article, or device that comprises the element.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The steps of the foregoing method embodiments are included; and the foregoing storage medium includes: various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

It should be noted that the above description is only a preferred embodiment of the present invention, and is only for explaining the technical solutions of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalents, improvements, etc. made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

A fiber switch system, comprising:

At least two fiber switches, software-defined network SDN controllers;

All fiber switches are connected in sequence to form a ring network;

Any two adjacent fiber switches are connected by a multi-core fiber to form a plurality of fiber loops in the ring network;

The SDN controllers are respectively connected to each of the fiber switches, and are configured to have one sending port on each fiber loop, and the other ports are receiving ports.
The system according to claim 1, wherein each of the fiber switches comprises: a first port group and a second port group;

In each fiber switch, the kth port in the first port group is connected to the k+1 port in the second port group, and the nth port in the first port group is connected to the first port in the second port group. The first port group and the second port group in the fiber switch have n ports;

In any two adjacent fiber switches, an i-th port in the second port group of the first fiber switch is connected to an i-th port in the first port group of the second fiber switch;

Where n is a positive integer, the value range of k is [1, n-1], the range of i is [1, n], and k and i are positive integers.
The system of claim 1 wherein said fiber switch is configured to transmit and/or receive data in parallel over a plurality of fiber loops in accordance with a configuration of said SDN controller.
The system according to claim 1, wherein the fiber switch is further configured to determine a direction of transmitting data on a fiber loop according to a configuration of the SDN controller, and send data in the determined direction. .
The system according to any one of claims 1 to 4, wherein the SDN controller is further configured to number the fiber switch, and determine a fiber switch that transmits data and a fiber switch that receives data according to the number. Location and control of the fiber switch that sends the data and the fiber switch that receives the data according to the location The Fibre Channel Selector, Wavelength Selector Switch, and Photoelectric Converter are configured.
A fiber switch, comprising:

Multiple ports and Fibre Channel selectors;

The plurality of ports are connected to the ports of other adjacent fiber switches through multi-core fibers to form a ring network and a plurality of fiber loops in the ring network;

The Fibre Channel Selector is configured to select a fiber loop and a transmit port and a receive port on the fiber loop according to the received configuration command, so that one transmit port exists on each fiber loop, and the other ports are receive ports.
The fiber switch according to claim 6, wherein the plurality of ports are divided into a first port group and a second port group;

The kth port in the first port group is connected to the k+1th port in the second port group, and the nth port in the first port group is connected to the first port in the second port group, wherein the first port group And n ports in the second port group;

The i-th port in the second port group is connected to the i-th port in the first port group of the external adjacent fiber switch;

Where n is a positive integer, the value range of k is [1, n-1], the range of i is [1, n], and k and i are positive integers.
A fiber optic switch according to claim 6 wherein:

The Fibre Channel Selector is further configured to select a plurality of ports on the plurality of fiber loops according to the received configuration command, and send data in parallel through the plurality of ports.
A fiber optic switch according to claim 6 wherein:

The Fibre Channel Selector is further configured to determine, according to the received configuration instruction, a direction in which data is sent by the port on the fiber loop, and send data through the port in the determined direction.
The fiber switch according to any one of claims 6 to 9, further comprising:

The electrical interface Ethernet switch is interconnected with the server, and is configured to receive data sent by the server, and after data exchange, send data of the electrical signal to be sent to the optical optical switch. Transducing the data of the electrical signal sent by the photoelectric converter to the server;

The electro-optic converter is connected to the wavelength synthesizer for receiving data of the electrical signal to be sent from the electrical interface Ethernet switch, and converting the electrical signal sent to different fiber switches into Optical signals of different wavelengths, and the converted optical signals to be transmitted are sent to a wavelength combiner;

The wavelength synthesizer is connected to the transmitting port through an optical fiber, and is configured to couple the optical signal to be transmitted into a coupled optical signal, and send the coupled optical signal to the transmitting port;

a channel strobe, configured to strobe a receiving port according to the received first instruction;

At least one wavelength selection switch, each wavelength selection switch corresponding to one receiving port;

The wavelength selection switch is configured to separate an optical signal having a wavelength specified by the second instruction from the received optical signal according to the received second instruction, and send the separated optical signal to the photoelectric converter ;

The photoelectric converter is configured to convert the received optical signal into an electrical signal, and send the converted electrical signal to the electrical interface Ethernet switch.