WO2022062568A1

WO2022062568A1 - Switch configuration method and related device

Info

Publication number: WO2022062568A1
Application number: PCT/CN2021/104921
Authority: WO
Inventors: 刘欣超; 郑好棉
Original assignee: 华为技术有限公司
Priority date: 2020-09-27
Filing date: 2021-07-07
Publication date: 2022-03-31
Also published as: CN114363272B; CN114363272A

Abstract

Provided are a switch configuration method and a related device. The method of the present application comprises: acquiring a physical topology between an optical switch and an electric switch set; determining a service sending path and a service receiving path between a first electric switch and a second electric switch in the electric switch set according to the physical topology, wherein a sending interface on the service sending path and a receiving interface on the service receiving path are not in the same group of physical interfaces; determining a logic interface in the first electrical switch or the second electrical switch according to the service sending path and the service receiving path, wherein the logic interface comprises the sending interface on the service sending path and the receiving interface on the service receiving path; and sending first configuration information to the first electrical switch or the second electrical switch, wherein the first configuration information is used for instructing the first electrical switch or the second electrical switch to transmit a service by means of a local logic interface. By means of the above-mentioned means, there can be more idle paths in a system for establishing a connection between two electrical switches.

Description

A switch configuration method and related equipment

This application claims the priority of the Chinese patent application with the application number 202011033164.6 and the application title "A method for configuring a switch and related equipment" filed with the State Intellectual Property Office of China on September 27, 2020, the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the field of communications, and in particular, to a switch configuration method and related equipment.

Background technique

With the large-scale application and development of network, communication and computer systems. Internet data centers are also developing rapidly. The development of mobile Internet, video services and cloud computing has brought explosive growth of traffic to data centers, making more and more applications and business processing converge to data centers. Although the exchange rate and interface rate of the electrical exchange equipment in the data center are constantly improving, they are still unable to cope with the demand for massively increasing data exchange.

In recent years, with the development of optical technology and the maturity of optical integration technology, the application of optical interconnect technology to data centers can solve some problems of electrical switches, such as energy consumption and scalability. Specifically, a part of electrical switches can be replaced by optical switches, and connections between different electrical switches can be established through optical switches. Among them, the transmission and reception of services between the two electrical switches need to use the same pair of optical ports of the optical switch to perform optical switching. However, in this way, if a new connection needs to be established between two electrical switches, there may be no idle paths, so that more interfaces and optical fibers for connection need to be deployed on the electrical switches, resulting in higher costs.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a switch configuration method and related equipment. There can be more idle paths in the system for establishing a new connection between two electrical switches, and there is no need to deploy more interfaces and user interfaces on the electrical switches. For the connected fiber, cost savings.

In a first aspect, the present application provides a method for configuring a switch. The method is executed by the controller and specifically includes multiple steps. The controller acquires the physical topology between the optical switch and the set of electrical switches, wherein each electrical switch includes at least one group of physical interfaces, each group of physical interfaces includes a sending interface and a receiving interface, and the optical switch includes multiple optical ports. The controller determines the service sending path and the service receiving path between the first electrical switch and the second electrical switch in the electrical switch set according to the physical topology, wherein the sending interface on the service sending path and the receiving interface on the service receiving path are not in the same group physical interface. The controller determines a logical interface in the first electrical switch or the second electrical switch according to the service sending path and the service receiving path, where the logical interface includes a sending interface on the service sending path and a receiving interface on the service receiving path. The controller sends first configuration information to the first electrical switch or the second electrical switch, where the first configuration information is used to instruct the first electrical switch or the second electrical switch to transmit services through a local logical interface.

In this implementation manner, services between two electrical switches no longer have to be sent and received by using the same set of interfaces of the electrical switches, so the service transmission path between each two electrical switches can be configured more flexibly, so that in the system There can be more idle paths for establishing a new connection between the two electrical switches, and there is no need to deploy more interfaces and optical fibers for connection on the electrical switches, which saves costs.

In some possible implementations, the method further includes:

The controller determines each pair of optical ports used for optical switching in the optical switch according to the service sending path and the service receiving path. The controller sends second configuration information to the optical switch, where the second configuration information is used to indicate each pair of optical ports used for optical switching in the optical switch. In this embodiment, the controller also needs to configure the optical switch, so that the optical switch can perform optical switching according to the service transmission path determined by the controller.

In some possible implementations, the optical switch includes at least a first optical switch and a second optical switch.

Acquiring the physical topology between the optical switch and the electrical switch set includes: acquiring the first physical topology between the first optical switch and the electrical switch set, and acquiring the second physical topology between the second optical switch and the electrical switch set.

Determining each pair of optical ports used for optical switching in the optical switch according to the service sending path and the service receiving path includes: determining each pair of optical ports used for optical switching in the first optical switch according to the service sending path, and determining each pair of optical ports used for optical switching in the first optical switch according to the service receiving path. Determine each pair of optical ports used for optical switching in the second optical switch.

In this embodiment, the number of optical switches is multiple, and the controller needs to acquire the physical topology between each optical switch and the electrical switch, and determine each pair of optical ports used for optical switching on each optical switch. This solution is specifically applied to the scenario of multiple optical switches, which improves the practicability of this solution.

In some possible implementations, the first electrical switch or the second electrical switch includes a link aggregation interface, and the link aggregation interface includes multiple groups of physical interfaces.

Determining the logical interface in the first electrical switch or the second electrical switch according to the service sending path and the service receiving path includes: updating the link aggregation interface according to the service sending path and the service receiving path, and the updated link aggregation interface includes a logical interface.

In this embodiment, it is not only ensured that there are more idle paths in the system for establishing a new connection between the two electrical switches, but also the bandwidth and reliability can be increased through link aggregation.

In some possible implementations, the first configuration information includes an Internet Protocol (Internet Protocol, IP) address of the logical interface of the peer electrical switch corresponding to the logical interface of each electrical switch, so that the electrical switch can transmit services according to the IP address , which improves the feasibility of this scheme.

In a second aspect, the present application provides a method for configuring a switch. The method is specifically completed by autonomous pairing between electrical switches. The first electrical switch is connected to the optical switch, the second electrical switch is connected to the optical switch, the first electrical switch includes multiple groups of interfaces, the second electrical switch includes multiple groups of interfaces, and each group of interfaces includes a sending interface and a receiving interface. The method specifically includes multiple steps. First, the first electrical switch receives the first configuration information sent by the second electrical switch through the optical switch. The first configuration information includes a first identifier of a sending interface on the second electrical switch that outputs the first configuration information. Next, the first electrical switch broadcasts the second configuration information through each sending interface on the first electrical switch, and sends the second configuration information to the second electrical switch through the optical switch. Each second configuration information includes a first identifier, a second identifier of a receiving interface on the first electrical switch that inputs the first configuration information, and a third identifier of a sending interface on the first electrical switch that outputs the second configuration information. Furthermore, the first electrical switch receives third configuration information sent by the second electrical switch through the optical switch, where the third configuration information includes the first identifier, the second identifier, the third identifier and a receiving interface on the second switch for inputting the second configuration information The fourth identifier of , wherein the sending interface for outputting the first configuration information on the second electrical switch and the receiving interface for inputting the second configuration information are not the same group of interfaces.

The receiving, by the first electrical switch, the first configuration information sent by the second electrical switch through the optical switch includes: the first electrical switch receiving the first configuration information sent by the second electrical switch through the first optical switch.

The first electrical switch sends the second configuration information through each sending interface on the first electrical switch, and sends the second configuration information to the second electrical switch through the optical switch. Each sending interface sends the second configuration information, and sends the second configuration information to the second electrical switch through the second optical switch.

In some possible implementations, the method further includes:

The first electrical switch receives, through the optical switch, fourth configuration information broadcast by the third electrical switch, where the fourth configuration information is configuration information used by the third electrical switch to reply to the first electrical switch. The first electrical switch deletes the fourth configuration information. In this implementation manner, the electrical switch can determine whether the configuration information is related to itself according to the identifier in the received configuration information, and if not, the configuration information can be deleted. It is ensured that the pairing of electrical switches is not affected by other electrical switches.

In a third aspect, the present application provides a controller including a processor, a memory and a transceiver. Wherein, the processor, the memory and the optical transceiver are connected to each other through lines.

The processor is used to: first, obtain the physical topology between the optical switch and the electrical switch set, each electrical switch in the electrical switch set includes at least one group of physical interfaces, each group of physical interfaces includes a sending interface and a receiving interface, and the optical switch Including multiple optical ports. After that, determine the service sending path and the service receiving path between the first electrical switch and the second electrical switch in the electrical switch set according to the physical topology, wherein the sending interface on the service sending path and the receiving interface on the service receiving path are not in the same group physical interface. Next, a logical interface in the first electrical switch or the second electrical switch is determined according to the service sending path and the service receiving path, where the logical interface includes a sending interface on the service sending path and a receiving interface on the service receiving path.

The transceiver is configured to: send first configuration information to the first electrical switch or the second electrical switch, where the first configuration information is used to instruct the first electrical switch or the second electrical switch to transmit services through a local logical interface.

In some possible implementations, the processor is further configured to: determine each pair of optical ports used for optical switching in the optical switch according to the service sending path and the service receiving path.

The transceiver is further configured to: send second configuration information to the optical switch, where the second configuration information is used to indicate each pair of optical ports used for optical switching in the optical switch.

The processor is specifically configured to: acquire the first physical topology between the first optical switch and the electrical switch set, and acquire the second physical topology between the second optical switch and the electrical switch set. Each pair of optical ports used for optical switching in the first optical switch is determined according to the service sending path, and each pair of optical ports used for optical switching in the second optical switch is determined according to the service receiving path.

The processor is specifically configured to: update the link aggregation interface according to the service sending path and the service receiving path, and the updated link aggregation interface includes a logical interface.

In some possible implementation manners, the first configuration information includes an IP address of a logical interface of the peer electrical switch corresponding to the logical interface.

In a fourth aspect, the present application provides an electrical switch, including a processor, a memory, and a transceiver. Wherein, the processor, the memory and the optical transceiver are connected to each other through lines. The processor invokes program code in memory for controlling the transceiver.

The transceiver is used for: first, receiving first configuration information sent by the second electrical switch through the optical switch, where the first configuration information includes a first identifier of a sending interface on the second electrical switch that outputs the first configuration information. After that, broadcast the second configuration information through each sending interface on the electrical switch, and send the second configuration information to the second electrical switch through the optical switch, where each second configuration information includes the first identifier, the first identifier entered on the electrical switch The second identifier of the receiving interface of the configuration information and the third identifier of the sending interface on the electrical switch that outputs the second configuration information. Next, the third configuration information sent by the second electrical switch is received by the optical switch, where the third configuration information includes the first identifier, the second identifier, the third identifier and the fourth identifier of the receiving interface on the second switch for inputting the second configuration information identification, wherein the sending interface for outputting the first configuration information on the second electrical switch and the receiving interface for inputting the second configuration information are not in the same group of interfaces.

The transceiver is specifically configured to: receive the first configuration information sent by the second electrical switch through the first optical switch. The second configuration information is sent through each sending interface on the electrical switch, and the second configuration information is sent to the second electrical switch through the second optical switch.

In some possible implementations, the transceiver is further configured to receive, through the optical switch, fourth configuration information broadcast by the third electrical switch, where the fourth configuration information is the configuration information used by the third electrical switch to reply to the electrical switch. The processor is used for: deleting the fourth configuration information.

In a fifth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, wherein, when the computer program is executed by hardware, any one of the methods in the first aspect or the second aspect can be implemented. some or all of the steps.

In the embodiment of the present application, services between two electrical switches no longer have to be sent and received by using the same set of interfaces of the electrical switches, so the service transmission path between each two electrical switches can be configured more flexibly, so that in the system There can be more idle paths for establishing a new connection between the two electrical switches, and there is no need to deploy more interfaces and optical fibers for connection on the electrical switches, which saves costs.

Description of drawings

FIG. 1 is a schematic diagram of a network structure in an embodiment of the application;

FIG. 2 is a schematic diagram of an embodiment of a configuration method of a switch in an embodiment of the present application;

3 is a schematic diagram of a physical topology between an optical switch and an electrical switch set in an embodiment of the present application;

FIG. 4 is a schematic diagram of a link aggregation interface in an embodiment of the present application;

5 is another schematic diagram of a physical topology between an optical switch and an electrical switch set in an embodiment of the present application;

FIG. 6 is a schematic diagram of one embodiment of a configuration method of a switch in an embodiment of the present application;

7 is another schematic diagram of a physical topology between an optical switch and an electrical switch set in an embodiment of the present application;

8 is a schematic diagram of a structure of a controller in an embodiment of the present application;

FIG. 9 is a schematic diagram of a structure of an electrical switch in an embodiment of the present application.

detailed description

It should be noted that the terms "first", "second" and "third" in the description and claims of the present application and the above drawings are used to distinguish similar objects, rather than limiting a specific order or sequence. . It is to be understood that the above terms are interchangeable under appropriate circumstances so that the embodiments described herein can be practiced in sequences other than those described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units expressly listed, but may include steps or units not expressly listed or for such process, method, product or Other steps or units inherent to the device.

FIG. 1 is a schematic diagram of a network structure in an embodiment of the present application. As shown in FIG. 1 , the present application is mainly applied in a scenario where an electrical switch interacts with an optical switch. The electrical switch includes electrical switch 1 , electrical switch 2 , electrical switch 3 and electrical switch 4 as shown in FIG. 1 . The optical switches include optical switch A, optical switch B, and optical switch C as shown in FIG. 1 . Specifically, a connection is established between every two electrical switches through an optical switch. Each group of physical interfaces (including sending interfaces and receiving interfaces) on the electrical switch is connected with a corresponding optical interface on the optical switch through optical fibers.

For example, the connection between the electrical switch 1 and the electrical switch 3 is established through the optical switch A. A connection is established between the electrical switch 2 and the electrical switch 4 through the optical switch B. A connection is established between the electrical switch 3 and the electrical switch 4 through the optical switch C. It can be seen that the physical interface corresponding to the optical switch A on the electrical switch 1 is occupied, and the physical interfaces corresponding to the optical switch B and the optical switch C on the electrical switch 4 are also occupied. Therefore, the connection between the electrical switch 1 and the electrical switch 4 cannot be established through the optical switch A, the optical switch B, and the optical switch C temporarily. In this case, the connection between the electrical switch 1 and the electrical switch 4 can only be achieved through optical switching path rearrangement. Specifically, the electrical switch 2 and the electrical switch 4 may be changed to establish a connection through the optical switch A. Then, the physical interface corresponding to the optical switch B on the electrical switch 1 is idle, and the physical interface corresponding to the optical switch B on the electrical switch 4 is also idle.

However, in practical applications, the number of physical interfaces on each electrical switch is limited, and the transmission and reception of services between every two electrical switches requires the use of the same pair of optical ports of the optical switch for optical switching. This may result in not enough free paths in the system for establishing new connections. If the number of physical interfaces on an electrical switch is to be increased, more physical interfaces and optical fibers for connection need to be deployed on the electrical switch, resulting in higher costs.

To this end, the present application provides a method for configuring a switch, and there can be more idle paths in the system for establishing a new connection between two electrical switches, without deploying more interfaces on the electrical switches and connecting them fiber, saving costs.

FIG. 2 is a schematic diagram of an embodiment of a configuration method of a switch in an embodiment of the present application. In an example, the configuration method of the switch is specifically performed by the controller, and the configuration method of the switch includes the following steps.

201. Acquire the physical topology between the optical switch and the electrical switch set.

In this embodiment, the controller may acquire the physical topology between the optical switch and the set of electrical switches through pre-configuration or manual input. The physical topology specifically includes the physical connection relationship between the interface on the electrical switch and the optical interface on the optical switch. Wherein, every two electrical switches are connected through optical switches. Specifically, each electrical switch includes at least one group of physical interfaces, and each group of physical interfaces includes a sending interface and a receiving interface. Each optical switch includes multiple optical ports for optical switching. Each group of physical ports on the electrical switch can be connected to the corresponding optical ports on the optical switch through optical fibers. It should be understood that the number of optical switches in this application is usually multiple, and the specific number is not limited here. In addition, this application does not limit the specific application scenarios of the above physical topology, as long as it is a connection established between a layer of electrical switches and a layer of optical switches. For example, the above physical topology can be specifically applied to spine layer switches in a data center.

FIG. 3 is a schematic diagram of a physical topology between an optical switch and an electrical switch set in an embodiment of the present application. As shown in FIG. 3 , the electrical switch includes an electrical switch 101 , an electrical switch 102 and an electrical switch 103 . The optical switch includes an optical switch 201 and an optical switch 202 . Each electrical switch includes two groups of physical interfaces, namely interface group 1 and interface group 2. Each group of physical interfaces includes a sending interface (the interface shown in the black box in Figure 3) and the receiving interface (the white box in Figure 3). interface shown). Each group of physical ports on the electrical switch is connected to the optical ports on the optical switch in one-to-one correspondence.

202. Determine, according to the physical topology, a service sending path and a service receiving path between the first electrical switch and the second electrical switch in the electrical switch set.

In the traditional service transmission mode, the transmission and reception of the service between two electrical switches requires the same pair of optical ports of the optical switch to perform optical switching. Taking FIG. 3 as an example, electrical switch 101 outputs services through interface group 1, the services are input to optical port 1 of optical switch 201, and output from optical port 2 to interface group 1 of electrical switch 102 through optical switching. Similarly, the electrical switch 102 outputs services through the interface group 1, the services are input to the optical port 2 of the optical switch 201, and output from the optical port 1 to the interface group 1 of the electrical switch 101 after the optical switch.

The embodiment of the present application is different from the traditional service transmission mode in that the sending interface on the service sending path and the receiving interface on the service receiving path between at least two electrical switches are not the same group of interfaces. Taking FIG. 3 as an example, electrical switch 101 outputs services through interface group 1, the services are input to optical port 1 of optical switch 201, and output from optical port 2 to interface group 1 of electrical switch 102 through optical switching. The difference is that the electrical switch 102 outputs the service through the interface group 2, the service is input to the optical port 2 of the optical switch 202, and is output from the optical port 1 to the interface group 2 of the electrical switch 101 after the optical switch. It can be seen that the service sent from the electrical switch 101 to the electrical switch 102 needs to be optically switched through the optical switch 201 , and the service sent from the electrical switch 102 to the electrical switch 101 needs to be optically switched through the optical switch 202 . The electrical switch 101 sends the service to the electrical switch 102 through the sending interface in the interface group 1, and receives the service from the electrical switch 102 through the receiving interface in the interface group 2. Similarly, the electrical switch 102 sends services to the electrical switch 101 through the sending interface in the interface group 2 , and receives the service from the electrical switch 101 through the receiving interface in the interface group 1 . For the electrical switch 101 and the electrical switch 102, the interfaces used for service sending and service receiving are not the same set of physical interfaces.

It should be understood that, in practical applications, the service transmission mode provided by the present application can be integrated with the traditional service transmission mode. For example, the above-mentioned traditional service transmission mode is used between certain two electrical switches, and the service transmission mode provided by the present application is used between the other two electrical switches. Through this integrated solution, the controller can more flexibly calculate the service transmission path between every two electrical switches, so that there can be more idle paths in the system for establishing a new connection between the two electrical switches.

203. Determine a logical interface in the first electrical switch or the second electrical switch according to the service sending path and the service receiving path.

In this embodiment, the controller may configure the sending interface on the service sending path and the receiving interface on the service receiving path as a set of logical interfaces. A logical interface can be understood as an interface that can realize the data exchange function but does not exist physically and needs to be established through configuration. That is, the controller can be reconfigured on the basis of an existing physical interface group to form a logical interface, so that the sending interface and the receiving interface in different physical interface groups can be configured as one logical interface. A logical interface is only a logical division to distinguish it from a physical interface group, and it is essentially composed of physical interfaces. With reference to the example in step 202 above, the sending interface in the interface group 1 and the receiving interface in the interface group 2 on the electrical switch 101 may be configured as logical interfaces. The sending interface in the interface group 2 and the receiving interface in the interface group 1 on the electrical switch 102 may be configured as logical interfaces. It should be understood that the controller also needs to determine each pair of optical ports used for optical switching in the optical switch according to the service sending path and the service receiving path. It should also be understood that if a certain electrical switch still transmits and receives services through the same set of physical interfaces, then there is no need to configure a logical interface for the electrical switch. It should be noted that the logical interface configured on the electrical switch includes a plurality of physical interfaces, but is not limited to the sending interface on the above-mentioned sending path and the receiving interface on the service receiving path.

In a possible implementation, the link aggregation interface may be updated on the basis of the existing link aggregation interface of the electrical switch to form the above-mentioned logical interface. Link aggregation refers to a logical link formed by bundling several links together. Each aggregation group uniquely corresponds to a logical interface, which is called a link aggregation interface or an Eth-Trunk interface. It should be understood that, in the traditional link aggregation technology, each link aggregation interface includes multiple groups of physical interfaces, and the sending interface and the receiving interface in each group of physical interfaces need to be configured on the same link aggregation interface. In this application, the sending interface and the receiving interface in each group of physical interfaces may be configured on different link aggregation interfaces as required. The following takes FIG. 4 as an example for introduction. FIG. 4 is a schematic diagram of a link aggregation interface in an embodiment of the present application.

As shown in FIG. 4 , the electrical switch includes physical interface groups 1-4, wherein interface group 1 and interface group 2 are configured as link aggregation interface 1, and interface group 3 and interface group 4 are configured as link aggregation interface 2. If the controller determines according to the calculation that the sending interface of interface group 1 and the receiving interface of interface group 3 need to be configured as a group of logical interfaces. Then, the controller can update Link Aggregation Interface 1 and Link Aggregation Interface 2. Specifically, the receiving interface in the interface group 1 is allocated to the link aggregation interface 2, and the receiving interface in the interface group 3 is allocated to the link aggregation interface 1. In this way, the updated link aggregation interface 1 includes the above-mentioned logical interface that needs to be configured. In this way, it is not only ensured that there are more idle paths in the system for establishing a new connection between the two electrical switches, but also the bandwidth and reliability can be increased through link aggregation.

204. Send the first configuration information to the first electrical switch or the second electrical switch, and send the second configuration information to the optical switch.

The controller may generate first configuration information corresponding to the first electrical switch or the second electrical switch according to the determined logical interface, and send the first configuration information to the corresponding electrical switch. The electrical switch can complete the configuration of the local logical interface according to the first configuration information, and transmit services through the local logical interface. It should be understood that the first configuration information may include an Internet Protocol (Internet Protocol, IP) address of the logical interface of the opposite end electrical switch, so that the electrical switch sends services to the opposite end electrical switch according to the IP address. For example, after receiving the first configuration information, the first electrical switch can determine the IP address of the logical interface of the second electrical switch, and the first electrical switch can send services to the logical interface of the second electrical switch through the local logical interface. In addition, the first configuration information may also include Open Shortest Path First (Open Shortest Path First, OSPF) related configuration information and Border Gateway Protocol (Border Gateway Protocol, BGP) related configuration information, etc., which are not specifically limited here.

It should be noted that the controller also needs to generate the second configuration information according to the determined optical port on the optical switch for optical switching, and send the second configuration information to the optical switch. The optical switch may determine each pair of optical ports used for optical switching according to the second configuration information.

Optionally, the configuration of the electrical switch and the configuration of the optical switch can be done by the same controller. Specifically, as shown in FIG. 3 , the controller sends corresponding first configuration information to each electrical switch, and sends corresponding second configuration information to each optical switch. Furthermore, the configuration of the electrical switches and the configuration of the optical switches can be done by different controllers. FIG. 5 is another schematic diagram of a physical topology between an optical switch and an electrical switch set in an embodiment of the present application. As shown in FIG. 5 , the first controller sends corresponding first configuration information to each electrical switch, and the second controller sends corresponding second configuration information to each optical switch.

Taking FIG. 3 as an example, the following describes a service sending path and a service receiving path between every two electrical switches in FIG. 3 .

First, a service sending and receiving path between the electrical switch 101 and the electrical switch 102 .

The electrical switch 101 outputs the service through the sending interface in the interface group 1, the service is input from the optical port 1 of the optical switch 201, and after the optical switch is output from the optical port 2 of the optical switch 201 to the receiving interface of the interface group 1 in the electrical switch 102 interface. The electrical switch 102 outputs the service through the sending interface in the interface group 2, the service is input from the optical port 2 of the optical switch 202, and after the optical switch is output from the optical port 1 of the optical switch 202 to the receiving interface of the interface group 2 in the electrical switch 101 interface.

Second, a service sending and receiving path between the electrical switch 101 and the electrical switch 103 .

The electrical switch 101 outputs the service through the sending interface in the interface group 2, the service is input from the optical port 1 of the optical switch 202, and after the optical switch is output from the optical port 3 of the optical switch 202 to the receiving interface group 1 in the electrical switch 103 interface. The electrical switch 103 outputs the service through the sending interface in the interface group 2, the service is input from the optical port 3 of the optical switch 201, and after the optical switch is output from the optical port 1 of the optical switch 201 to the receiving interface group 1 of the electrical switch 101 interface.

Third, the service transmission and reception path between the electrical switch 102 and the electrical switch 103 .

The electrical switch 102 outputs the service through the sending interface in the interface group 1, the service is input from the optical port 2 of the optical switch 201, and after the optical switch is output from the optical port 3 of the optical switch 201 to the receiving interface group 2 of the electrical switch 103 interface. The electrical switch 103 outputs the service through the sending interface in the interface group 1, the service is input from the optical port 3 of the optical switch 202, and after the optical switch is output from the optical port 2 of the optical switch 202 to the receiving interface group 2 of the electrical switch 102 interface.

The method for configuring the switch by the controller in the present application is described above. The following describes a method for autonomous configuration between electrical switches in this application.

FIG. 6 is a schematic diagram of an embodiment of a configuration method of a switch in an embodiment of the present application. In an example, the configuration method of the switch includes the following steps.

301. The first electrical switch receives, through the optical switch, the first configuration information sent by the second electrical switch.

FIG. 7 is another schematic diagram of a physical topology between an optical switch and an electrical switch set in an embodiment of the present application. This embodiment is also applied to a system in which a physical topology is established between an electrical switch and an optical switch. The difference from the foregoing embodiment is that this embodiment does not require the participation of a controller. For details of the physical topology, reference may be made to the relevant description of step 201 in the embodiment shown in FIG. 2 , which will not be repeated here. Specifically, the first configuration information includes a first identifier of a sending interface on the second switch that outputs the first configuration information. Wherein, the first identifier may be a combination of switch ID and interface number. Taking Fig. 7 as an example, the electrical switch 101 sends the first configuration information through the sending interface in the interface group 1, then the first identifier can be represented as (switch 101, sending interface 1). It should be understood that the above-mentioned first identifier is just an example, and the present application does not limit the specific expression form of the first identifier.

It should be noted that the second electrical switch can start a timer while sending the first configuration information. If the timer expires and still cannot receive messages replied by other electrical switches, it proves that the current service sending path is unreachable, and the second electrical switch cannot communicate with the other electrical switches. The switch needs to reselect a new interface to send the first configuration information.

302. The first electrical switch broadcasts the second configuration information through each sending interface.

In this embodiment, since the first electrical switch does not know which local interface can be paired with the second electrical switch. Therefore, the first electrical switch needs to send the second configuration information through each sending interface, then the second configuration information output by at least one sending interface can be transmitted to the second electrical switch. The second configuration information includes the above-mentioned first identifier, the second identifier of the receiving interface on the first electrical switch that inputs the first configuration information, and the third identifier of the sending interface that outputs the second configuration information on the first electrical switch. Taking FIG. 7 as an example, the electrical switch 102 sends the second configuration information through the sending interfaces in the interface group 1 and the interface group 2 . The first configuration information is input from the receiving interface of the interface group 1 on the electrical switch 102, and the second identifier can be represented as (receiver 102, receiving interface 1). The third identification may include (receiver 102, transmission interface 1) and (receiver 102, transmission interface 2).

303. The first electrical switch receives, through the optical switch, the third configuration information sent by the second electrical switch.

After the second electrical switch receives the second configuration information sent by the first electrical switch, it can determine the service sending path and the service receiving path between the first electrical switch and the second electrical switch, and complete the local configuration. Furthermore, the second electrical switch also needs to send third configuration information to the first electrical switch, so that the first electrical switch determines the service sending path and the service receiving path, and completes the local configuration. Wherein, the third configuration information includes the first identification, the second identification, the third identification and the fourth identification of the receiving interface on the second electrical switch where the second configuration information is input. Taking FIG. 7 as an example, the second configuration information is output from the sending interface of the interface group 2 on the electrical switch 102, and the second configuration information is input from the receiving interface of the interface group 2 on the electrical switch 101. The fourth identifier can be represented as (receive machine 101, receiving interface 2). It should be understood that if the second electrical switch has received the second configuration information from multiple local receiving interfaces, the second electrical switch may select one receiving interface to complete the local configuration and send the third configuration information to the first electrical switch.

It should be noted that, different from the traditional solution, the transmission and reception of services between two electrical switches need to use the same pair of optical ports of the optical switch to perform optical switching. In this embodiment, the sending interface for outputting the first configuration information and the receiving interface for inputting the second configuration information on the second electrical switch may not be the same group of physical interfaces. It should be understood that, from a global perspective, the present application does not limit whether the same set of physical interfaces is used for service transmission and reception between two electrical switches. The two electrical switches are automatically paired according to their own idle interfaces, and the sending and receiving services can use the same group of physical interfaces or physical interfaces in different groups.

In a possible implementation manner, if the third electrical switch receives the second configuration information broadcast by the first electrical switch, since the second configuration information includes identifiers related to the first electrical switch and the second electrical switch, the third electrical switch The electrical switch can then determine that the pairing is performed between the first electrical switch and the second electrical switch. The third electrical switch may delete the second configuration information without processing. Taking FIG. 7 as an example, the second configuration information is output from the sending interface of the interface group 1 on the electrical switch 102, and the second configuration information is input from the receiving interface of the interface group 2 on the electrical switch 103. The electrical switch 103 can determine that the second configuration information is used for the pairing of the electrical switch 101 and the electrical switch 102 according to the relevant identifier in the second configuration information, and the electrical switch 103 can delete the second configuration information.

The controller and the electrical switch provided by the present application will be introduced below.

FIG. 8 is a schematic diagram of a structure of a controller in an embodiment of the present application. The controller includes a processor 801 , a memory 802 and a transceiver 803 . The processor 801, the memory 802 and the transceiver 803 are interconnected by wires. Among them, the memory 802 is used for storing program instructions and data. It should be noted that the transceiver 803 is configured to perform the operation of sending and receiving information in the embodiment shown in FIG. 2 above. The processor 801 is configured to perform other operations except for information sending and receiving in the above-mentioned embodiment shown in FIG. 2 .

FIG. 9 is a schematic diagram of a structure of an electrical switch in an embodiment of the present application. The controller includes a processor 901 , a memory 902 and a transceiver 903 . The processor 901, the memory 902 and the transceiver 903 are interconnected by wires. Among them, the memory 902 is used for storing program instructions and data. It should be noted that the transceiver 903 is configured to perform the operations of sending and receiving information in the embodiments shown in FIG. 2 and FIG. 6 . The processor 901 is configured to perform other operations except for information sending and receiving in the above-mentioned embodiments shown in FIG. 2 and FIG. 6 .

It should be noted that, the processors shown in FIG. 8 and FIG. 9 can be a general-purpose central processing unit (Central Processing Unit, CPU), a microprocessor, an application-specific integrated circuit ASIC, or at least one integrated circuit for Relevant programs are executed to realize the technical solutions provided by the embodiments of the present application. The memories shown in Figures 8 and 9 above may store operating systems and other applications. When implementing the technical solutions provided by the embodiments of the present application through software or firmware, program codes for implementing the technical solutions provided by the embodiments of the present application are stored in a memory and executed by a processor. In one embodiment, a memory may be included within the processor. In another embodiment, the processor and memory are two separate structures.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above may refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above embodiments can be completed by hardware, or can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. The storage medium mentioned may be read only memory, random access memory, or the like. Specifically, for example, the above-mentioned processing unit or processor may be a central processing unit, a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices , transistor logic devices, hardware components, or any combination thereof. Whether the above functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

When implemented in software, the method steps described in the above embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), and the like.

Finally, it should be noted that the above is only the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or substitutions should be included within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A method for configuring a switch, comprising:

Obtain a physical topology between an optical switch and a set of electrical switches, each electrical switch in the set of electrical switches includes at least one set of physical interfaces, each set of physical interfaces includes a sending interface and a receiving interface, and the optical switch includes multiple a light port;

A service sending path and a service receiving path between the first electrical switch and the second electrical switch in the electrical switch set are determined according to the physical topology, wherein the sending interface on the service sending path and the service receiving path are The receiving interface is not the same set of physical interfaces;

A logical interface in the first electrical switch or the second electrical switch is determined according to the service sending path and the service receiving path, where the logical interface includes a sending interface on the service sending path and the service receiving path the receiving interface on the path;

Sending first configuration information to the first electrical switch or the second electrical switch, where the first configuration information is used to instruct the first electrical switch or the second electrical switch to transmit services through a local logical interface.
The method according to claim 1, wherein the method further comprises:

Determine a pair of optical ports used for optical switching in the optical switch according to the service sending path and the service receiving path;

Send second configuration information to the optical switch, where the second configuration information is used to indicate a pair of optical ports used for optical switching in the optical switch.
The method according to claim 2, wherein the optical switch comprises at least a first optical switch and a second optical switch;

Obtaining the physical topology between the set of optical switches and electrical switches includes:

Obtain a first physical topology between the first optical switch and the electrical switch set, and obtain a second physical topology between the second optical switch and the electrical switch set.
The method according to claim 3, wherein determining a pair of optical ports used for optical switching in the optical switch according to the service sending path and the service receiving path comprises:

A pair of optical ports used for optical switching in the first optical switch is determined according to the service sending path, and a pair of optical ports used for optical switching in the second optical switch is determined according to the service receiving path.
The method according to any one of claims 1 to 4, wherein the first electrical switch or the second electrical switch comprises a link aggregation interface, and the link aggregation interface comprises multiple groups of physical interfaces, Determining the logical interface in the first electrical switch or the second electrical switch according to the service sending path and the service receiving path includes:

The link aggregation interface is updated according to the service sending path and the service receiving path, and the updated link aggregation interface includes the logical interface.
The method according to any one of claims 1 to 5, wherein the first configuration information includes an Internet Protocol IP address of a logical interface of the peer electrical switch corresponding to the logical interface.
A method for configuring a switch, comprising:

The first electrical switch receives, through the optical switch, first configuration information sent by the second electrical switch, where the first configuration information includes a first identifier of a sending interface on the second electrical switch that outputs the first configuration information, the The first electrical switch is connected to the optical switch, the second electrical switch is connected to the optical switch, the first electrical switch includes multiple groups of interfaces, the second electrical switch includes multiple groups of interfaces, each group of interfaces Including sending interface and receiving interface;

The first electrical switch broadcasts the second configuration information through each sending interface on the first electrical switch, and sends the second configuration information to the second electrical switch through the optical switch, each The second configuration information includes the first identifier, the second identifier of the receiving interface on the first electrical switch for inputting the first configuration information, and the sending of the second configuration information on the first electrical switch. the third identifier of the interface;

The first electrical switch receives, through the optical switch, third configuration information sent by the second electrical switch, where the third configuration information includes the first identifier, the second identifier, the third identifier and The fourth identifier of the receiving interface for inputting the second configuration information on the second switch, wherein the sending interface for outputting the first configuration information on the second electrical switch and the receiving interface for inputting the second configuration information The interfaces are not the same set of interfaces.
The method according to claim 7, wherein the optical switch comprises at least a first optical switch and a second optical switch;

The first electrical switch receiving the first configuration information sent by the second electrical switch through the optical switch includes:

receiving, by the first electrical switch, the first configuration information sent by the second electrical switch through the first optical switch;

The sending, by the first electrical switch, the second configuration information through each sending interface on the first electrical switch, and sending the second configuration information to the second electrical switch through the optical switch includes:

The first electrical switch sends second configuration information through each sending interface on the first electrical switch, and sends the second configuration information to the second electrical switch through the second optical switch.
The method according to claim 7 or 8, wherein the method further comprises:

The first electrical switch receives, through the optical switch, fourth configuration information broadcast by the third electrical switch, where the fourth configuration information is configuration information used by the third electrical switch to reply to the first electrical switch ;

The first electrical switch deletes the fourth configuration information.
A controller, characterized in that it comprises: a processor, a memory and a transceiver, wherein the processor, the memory and the transceiver are connected to each other through lines;

The processor is used to:

Obtain a physical topology between an optical switch and a set of electrical switches, each electrical switch in the set of electrical switches includes at least one set of physical interfaces, each set of physical interfaces includes a sending interface and a receiving interface, and the optical switch includes multiple a light port;

A service sending path and a service receiving path between the first electrical switch and the second electrical switch in the electrical switch set are determined according to the physical topology, wherein the sending interface on the service sending path and the service receiving path are The receiving interface is not the same set of physical interfaces;

A logical interface in the first electrical switch or the second electrical switch is determined according to the service sending path and the service receiving path, where the logical interface includes a sending interface on the service sending path and the service receiving path the receiving interface on the path;

The transceiver is used to:

Sending first configuration information to the first electrical switch or the second electrical switch, where the first configuration information is used to instruct the first electrical switch or the second electrical switch to transmit services through a local logical interface.
The controller of claim 10, wherein the processor is further configured to:

Determine a pair of optical ports used for optical switching in the optical switch according to the service sending path and the service receiving path;

The transceiver is also used to:

Send second configuration information to the optical switch, where the second configuration information is used to indicate a pair of optical ports used for optical switching in the optical switch.
The controller according to claim 11, wherein the optical switch includes at least a first optical switch and a second optical switch; and the processor is specifically configured to:

Obtain a first physical topology between the first optical switch and the electrical switch set, and obtain a second physical topology between the second optical switch and the electrical switch set.
The controller according to claim 11, wherein the processor is specifically configured to:

A pair of optical ports used for optical switching in the first optical switch is determined according to the service sending path, and a pair of optical ports used for optical switching in the second optical switch is determined according to the service receiving path.
The controller according to any one of claims 10 to 13, wherein the first electrical switch or the second electrical switch comprises a link aggregation interface, and the link aggregation interface comprises multiple groups of physical interfaces , the processor is specifically used to:

The link aggregation interface is updated according to the service sending path and the service receiving path, and the updated link aggregation interface includes the logical interface.
The controller according to any one of claims 10 to 14, wherein the first configuration information comprises an Internet Protocol IP address of a logical interface of the peer electrical switch corresponding to the logical interface.
An electrical switch, characterized in that it comprises: a processor, a memory and a transceiver, the processor, the memory and the transceiver are connected to each other through a line, and the processor calls the program code in the memory to use for controlling the transceiver; the transceiver is used to:

The first configuration information sent by the second electrical switch is received through the optical switch, where the first configuration information includes the first identifier of the sending interface on the second electrical switch that outputs the first configuration information, and the electrical switch is connected to the second electrical switch. the optical switch is connected, the second electrical switch is connected to the optical switch, the electrical switch includes multiple groups of interfaces, the second electrical switch includes multiple groups of interfaces, and each group of interfaces includes a sending interface and a receiving interface;

Second configuration information is broadcast through each sending interface on the electrical switch, and the second configuration information is sent to the second electrical switch through the optical switch, each of the second configuration information includes the a first identifier, a second identifier of a receiving interface on the electrical switch for inputting the first configuration information, and a third identifier for a sending interface on the electrical switch for outputting the second configuration information;

The third configuration information sent by the second electrical switch is received by the optical switch, where the third configuration information includes the first identifier, the second identifier, the third identifier, and the second identifier on the second switch. The fourth identifier of the receiving interface for inputting the second configuration information, wherein the sending interface for outputting the first configuration information on the second electrical switch and the receiving interface for inputting the second configuration information are not the same group of interfaces.
The electrical switch according to claim 16, wherein the optical switch comprises at least a first optical switch and a second optical switch; the transceiver is specifically used for:

receiving the first configuration information sent by the second electrical switch through the first optical switch;

The second configuration information is sent through each sending interface on the electrical switch, and the second configuration information is sent to the second electrical switch through the second optical switch.
The electrical switch according to claim 16 or 17, wherein the transceiver is further used for:

receiving, through the optical switch, fourth configuration information broadcast by the third electrical switch, where the fourth configuration information is configuration information used by the third electrical switch to reply to the electrical switch;

The processor is configured to: delete the fourth configuration information.
A computer-readable storage medium, characterized by comprising computer instructions, which, when executed on a computer device, cause the computer device to perform the method according to any one of claims 1 to 9.