WO2017143940A1

WO2017143940A1 - Switching method and switching system

Info

Publication number: WO2017143940A1
Application number: PCT/CN2017/073934
Authority: WO
Inventors: 尚迎春; 陈勋; 叶兵; 王会涛
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-02-23
Filing date: 2017-02-17
Publication date: 2017-08-31
Also published as: CN107105355A; CN107105355B

Abstract

Disclosed are a switching method and a switching system. The switching system comprises a service processor and a switch, wherein the service processor and the switch are connected by means of a first back plate; the service processor is configured to obtain data flow information of a service, the data flow information comprising destination address information of the service, and reassemble, according to the channel rate of the first back plate, the service into at least one first sub-service the rate of which is the channel rate; the switch is configured to send the first sub-service to the destination address.

Description

Switching method and switching system

Technical field

The present application relates to, but is not limited to, optical communication technologies, and more particularly to an exchange method and an exchange system.

Background technique

With the rapid development of the Internet, a large amount of service information needs to be transmitted between different nodes. Therefore, switching devices set in the network need to have a large switching capacity.

Switching devices in the field of Optical Transport Network (OTN), Packet Transport Network (PTN), and Internet Protocol (IP), including line cards and switch cards. First, after the switching device obtains the data flow information of the service, the switch splits the service into multiple sub-services through the Switch Access (SA) device in the line card, and then sends the sub-services through the switch card. Go to the destination address.

Summary of invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The scheduling granularity of the SA device splitting service in the switching device is fine. However, as the cross-capacity of devices increases, the granularity of services transmitted between nodes becomes larger and larger, and services requiring fine scheduling are becoming less and less. Continue to use this all-electric crossover design, resulting in equipment. The power consumption of the internal electrical crossover is too large, and heat dissipation becomes a significant problem. The difficulty of expanding the capacity will limit the cross capacity of the equipment, and it will not meet the green trend of energy saving and emission reduction. At the same time, since all service exchanges are subjected to electrical cross processing, the cost of the equipment is high.

This article provides an exchange method and switching system to reduce the power consumption of switching devices.

An embodiment of the present invention provides a switching system, including: a service processor and a switch, where the service processor and the switch are connected by a first backplane, where

The service processor is configured to acquire data flow information of the service, where the data flow information includes information of a destination address of the service, and reassemble the service into the channel according to a channel rate of the first backplane. At least one first sub-service of the rate;

The switch is configured to send the first sub-service to the destination address.

In an embodiment, the switch includes: an electrical switch and an optical switch, where the electrical switch is connected to the optical switch through a second backplane, and between the optical switch and the service processor Connected by the first backplane;

The electrical switch is configured to recombine at least two of the first sub-services having different destination addresses into at least two second sub-services having the same destination address according to the destination address and the channel rate, where The rate of the two sub-services is the channel rate;

The optical switch is configured to send the at least one first sub-service or the second sub-service with the same destination address to the destination address.

In an embodiment, the electrical switch includes at least one electrical switchboard, the optical switch includes at least one optical switchboard, and the at least one electrical switchboard and the at least one optical switchboard pass the Second backplane connection;

The electrical switch board is configured to split the first sub-service with different destination addresses into at least two sub-sub-services according to the destination address; and according to the destination address of the sub-sub-service, the destination address is the same The sub-sub-service is reorganized into a second sub-service with the same destination address, and the rate of the second sub-service is the channel rate;

The optical switch board is configured to send the first sub-service with different destination addresses to the electrical switchboard according to the destination address.

In an embodiment, the electrical switchboard includes at least one switch access SA board and at least one switch network SF board, and the at least one switch access SA board and the at least one switch network SF board pass through at least one third back a board connection, wherein the switch access SA board and the optical switch are connected by the second back board;

The SA board is configured to split the first sub-services with different destination addresses into at least two sub-sub-services according to the destination address, and send each of the sub-sub-services to the SF board; reorganizing according to the sub-sub-services with the same service destination address sent by the SF board A second sub-service with the same destination address, and sending the second sub-service to the optical switch;

The SF board is configured to exchange the sub-sub-services to the SA board of the corresponding destination address according to the destination address of each of the sub-sub-services sent by the SA board.

In an embodiment, the service processor includes: at least one line card, and the line card is connected to the switch through the first backplane.

In an embodiment, the line card includes: a framing deframer, an optical transceiver, and an optical module, where the framing deframer is respectively connected to the optical transceiver and the optical module, where the optical module Connecting with the switch through the first backplane; or

The line card includes: a frame deframer, an electrical transceiver, and an optical module, wherein the frame deframer is respectively connected to the electrical transceiver and the optical module, and the optical module and the switch pass through The first backplane is connected, and the rate of the optical module is the rate of the first backplane channel.

In an embodiment, the service processor is further configured to determine whether a target address of the data stream in the first sub-service is the same; if it is determined that a target address of the data stream in the first sub-service is the same, triggering The optical switch performs the sending of the first sub-service to the address identified by the destination address information; if it is determined that the target addresses of the data flows in the first sub-service are not the same, triggering the electrical switch to execute And converting, according to the destination address information and the channel rate, at least two first sub-services with different destination addresses into at least two second sub-services with the same destination address.

An embodiment of the present invention further provides an exchange method, including:

Obtaining data flow information of the service, where the data flow information includes information of a destination address of the service;

Reconfiguring the service into at least one first sub-service of the channel rate according to a channel rate of the first backplane;

Transmitting the first sub-service to the destination address.

In an embodiment, after the reassembling the service into the at least one first sub-service of the channel rate according to the channel rate of the first backplane, the method further includes:

And reconfiguring, according to the destination address and the channel rate, at least two first sub-services with different destination addresses into at least two second sub-services with the same destination address, where the rate of the second sub-service is Channel rate

Sending the first sub-service to the destination address, including:

And transmitting, by the at least one first sub-service or the second sub-service with the same destination address, to the destination address.

In an embodiment, the reassembling the at least two first sub-services with different destination addresses into the at least two second sub-services with the same destination address according to the destination address information and the channel rate, including:

Separating the at least one first sub-service with different destination addresses into at least two sub-sub-services according to the destination address;

According to the destination address of the sub-sub-service,

And recombining the sub-sub-services into a second sub-service with the same destination address, where the rate of the second sub-service is the channel rate;

After the traffic is recombined into the at least one first sub-service of the channel rate according to the channel rate of the first backplane, the method further includes:

The first sub-service with different destination addresses is sent to the electrical switchboard according to the destination address.

Determining whether the target address of the data stream in the first sub-service is the same;

If it is determined that the target addresses of the data flows in the first sub-service are the same, performing, sending, sending, by the at least one first sub-service to the address identified by the destination address information;

If it is determined that the target addresses of the data flows in the first sub-service are different, performing, according to the destination address information and the channel rate, reassembling the first sub-service into a second sub-service with the same destination address .

The embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented when the computer executable instructions are executed by the processor.

The embodiment of the present invention includes a service processor and a switch, and the service processor is connected to the switch through a first backplane, where the service processor is configured to acquire data flow information of the service, where The data flow information includes information of a destination address of the service; and the communication according to the first backplane And a traffic rate, the traffic is reconfigured into at least one first sub-service of the channel rate; and the switch is configured to send the first sub-service to the destination address. Based on the optical switching of the backplane channel rate, the switching system realizes splitting the data flow of the service into the first sub-service with the rate of the channel rate, thereby increasing the scheduling granularity of the switching system and reducing the fine scheduling in the switching system. The granular cross-capacitance reduces the power consumption of the switching system.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

The drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification, which is used together with the embodiments of the present application to explain the technical solutions of the present application, and does not constitute a limitation of the technical solutions of the present application.

1 is a schematic structural diagram of an embodiment of a switching system according to the present invention;

2 is a schematic structural diagram of a second embodiment of a switching system according to the present invention;

3 is a schematic structural diagram of a third embodiment of a switching system according to the present invention;

4 is a schematic structural diagram of a fourth embodiment of a switching system according to the present invention;

FIG. 5 is a schematic structural diagram of an embodiment of a line card in a switching system according to the present invention; FIG.

6 is a schematic structural diagram of a subrack according to an embodiment of the switching system of the present invention;

FIG. 7 is a schematic flowchart diagram of an embodiment of an exchange method according to the present invention; FIG.

FIG. 8 is a schematic diagram of an embodiment of a switching method according to the present invention.

Detailed

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

The switching method provided by the embodiment of the present invention can be applied to when a switching device forwards a data stream in a network node. The switching method provided in this embodiment may be implemented by using a switching system, which may be integrated in a switching device or separately configured, wherein the switching device may adopt soft Implemented in pieces and / or hardware. The switching method and switching device provided in this embodiment will be described in detail below.

FIG. 1 is a schematic structural diagram of an embodiment of a switching system according to the present invention. As shown in FIG. 1 , a switching system provided by an embodiment of the present invention includes: a service processor 10 and a switch 20, and the service processor 10 exchanges with the foregoing. The devices 20 are connected by a first backplane, wherein

The service processor 10 is configured to acquire data flow information of a service, where the data flow information includes information of a destination address of the service, and re-form the service into the channel rate according to a channel rate of the first backplane. At least one first sub-service;

The switch 20 is configured to send the first sub-service to the destination address.

In this embodiment, the first backplane may be an optical backplane composed of a fiber optic flexible board, or may be an optical backplane composed of an optical waveguide or an opto-electric hybrid backplane including an optical waveguide, which includes an optical channel and an optical port.

The service processor 10 may be a client side service processor or a line side service processor, and the service processor 10 mainly exists in the form of a line card in the switching system. A line card can be called a service board, a circuit board, a client board, a tributary board, etc., and is a PCB (Printed Circuit Board) that supports external service access and communicates through a board in a backplane socket and a switch. Board) board.

The switch 20 may include one of an optical switch unit, an electrical switch unit, or a combination thereof. The switch 20 is mainly in the form of a switch card, which may be called a switch board, a cross board, a switch card, etc. A PCB board that implements switching or cross-scheduling between each line card.

In this embodiment, the switching system includes a service processor 10 and a switch 20, and the service processor 10 is connected to the switch 20 through a first backplane, where the service processor 10 is configured to Obtaining data flow information of the service, where the data flow information includes information of a destination address of the service; and reassembling the service into at least one first sub-service of the channel rate according to a channel rate of the first backplane The switch 20 is configured to send the first sub-service to the destination address. Based on the optical switching of the backplane channel rate, the switching system realizes splitting the data flow of the service into the first sub-service with the rate of the channel rate, thereby increasing the scheduling granularity of the switching system and reducing the fine scheduling in the switching system. The granular cross-capacitance reduces the power consumption of the switching system.

2 is a schematic structural diagram of a second embodiment of a switching system according to the present invention. As shown in FIG. 2, on the basis of the foregoing embodiment, the switch 20 may include: an electrical switch 202 and an optical switch 201, and the electrical switch 202 and The optical switch 201 is connected by a second backplane, and the optical switch 201 and the service processor 10 are connected by the first backplane;

The electrical switch 202 is configured to recombine at least two first sub-services with different destination addresses into at least two second sub-services with the same destination address according to the destination address and the channel rate, The rate of the second sub-service is the channel rate;

The optical switch 201 is configured to send the at least one first sub-service or the second sub-service with the same destination address to the destination address.

The first backplane is connected to the optical switch 202 and the service processor 10 in the form of an optical channel; the second backplane is connected to the optical switch in the form of an optical channel or an optical channel and an electrical channel. 201 and the electrical switch 202 described. The second backplane and the first backplane may be the same backplane or different backplanes.

3 is a schematic structural diagram of a third embodiment of the switching system of the present invention. As shown in FIG. 3, on the basis of the foregoing embodiment, the electrical switch 202 includes at least one electrical switchboard 2021, and the optical switch 201 includes at least An optical switchboard 2011, the at least one electrical switchboard 2021 and the at least one optical switchboard 2011 are connected by the second backplane; wherein the electrical switchboard 2021 is configured to have different destination addresses The first sub-service is split into at least two sub-sub-services according to the destination address; and the sub-sub-services with the same destination address are reorganized into the second sub-services with the same destination address according to the destination address of the sub-sub-services. The rate of the second sub-service is the channel rate.

The optical switch board 2011 is configured to send the first sub-services with different destination addresses to the electrical switchboard 2021 according to the destination address.

The optical switch board 2011 directly exchanges optical signals of each optical channel in the first backplane and/or the second backplane.

The optical switch board 2011 is optically connected to the service processor 10 through at least one first backplane. The optical switchboard 2011 is optically connected to each of the electrical switchboards 2021 through at least one second backplane. ;

The optical switch board 2011 sends the first sub-service or the second sub-service with the same destination address to the service processor 10; and the first sub-service with different destination addresses is followed. The destination address is sent to the electrical switchboard 2021.

4 is a schematic structural diagram of a fourth embodiment of a switching system according to the present invention. As shown in FIG. 4, on the basis of the foregoing embodiment, the electrical switchboard 2021 includes at least one switch access SA board 20211 and at least one switch fabric SF board 20212. The at least one switch access SA board 20211 and the at least one switch network SF board 20212 are connected by at least one third backplane, and the switch access SA board 20211 and the optical switch 201 pass the second backplane The SA board 20211 is configured to split the first sub-service with different destination addresses into at least two sub-sub-services according to the destination address, and send each sub-sub-service through a third backplane. And the sub-sub-services having the same service destination address sent according to the SF board 20212 are reorganized into the second sub-services with the same destination address, and the second sub-services are sent to the SF board 20212. The switch 201 is configured to exchange the sub-sub-services to the SA board 20211 of the corresponding destination address according to the destination address of each of the sub-sub-services sent by the SA board 20211.

The third backboard and the second backplane are respectively backplanes with electrical or optical passages. Each of the backplanes in the embodiment, that is, the first backplane, the second backplane, and the third backplane, may be an optical backplane that transmits optical signals, or an electrical backplane that transmits electrical signals, or transmits light. Opto-electric hybrid backplane for signal and electrical signals.

In this embodiment, the first backplane, the second backplane, and the third backplane may be the same optical backplane, or may be different backplanes, and optical channels that transmit optical signals are present thereon.

The service processor 10 may include: at least one line card 101, and the line card 101 and the switch 20 are connected by the first backplane. The second backplane and the first backplane may be the same backplane or different backplanes.

FIG. 5 is a schematic structural diagram of an embodiment of a line card in a switching system according to the present invention. As shown in FIG. 5, the system may further include a line card 101, and the line card 101 may include: optical transceiver. And a framing deframer 1012 and an optical module 1013, wherein the framing deframer 1012 is connected to the optical transceiver 1011 and the optical module 1013, respectively, and the optical module 1013 and the switch 20 pass through Said first backplane connection; or,

The line card includes: an electrical transceiver, a framing deframer, and an optical module, where the framing deframer respectively The optical module is connected to the optical transceiver, and the optical module is connected to the switch through the first backplane, and the rate of the optical module is a rate of the first backplane channel.

The inside of the line card 101, a 100 Gbps optical signal is connected to the inside of the line card, first converted into an electrical signal via the 100 Gbps optical transceiver 1011, and then sent to the optical transceiver 1011 via a frame framer 1012. The incoming electrical signal is resolved into traffic-based 25 Gbps data. Finally, the electrical signal output by the Framer 1012 is converted into a 25 Gbps optical signal through the 25 Gbps optical module 1012, sent to the backplane, and transmitted to the optical switch 201. Otherwise, the data flow flows backwards. At this time, the backplane optical channel rate is 25 Gbps.

When the framer 10112 is de-framed, if the scheduling granularity between the line cards 101 is an integer multiple of the backplane channel rate of 25 Gbps, the Framer 1012 splits the service into one or more 25 Gbps channels and sends them to the optical switch board to schedule the service. . If the service scheduling granularity between the line cards 101 is less than the backplane channel rate of 25 Gbps, the Framer 1012 mixes the service and other services into one 25 Gbps channel, and sends it to the optical switch board 2011, and then sends it through the optical switch board 2011. Scheduling is performed in the electrical switchboard 2021.

On the basis of the foregoing embodiment, the service processor 10 is further configured to determine whether the target addresses of the data flows in the first sub-service are the same; if it is determined that the target addresses of the data flows in the first sub-service are the same, triggering The optical switch 201 performs the sending of the at least one first sub-service to the address identified by the destination address information; if it is determined that the target addresses of the data flows in the first sub-service are not the same, triggering the The electrical switch 202 performs, according to the destination address information and the channel rate, recombining at least two first sub-services with different destination addresses into at least two second sub-services with the same destination address.

6 is a schematic structural diagram of a subrack according to an embodiment of the switching system of the present invention. As shown in FIG. 6, the front side of the subrack is a line card with three layers of horizontally inserted design, and the back side is also a three-layer vertical insertion structure, from top to bottom. It is an optical switch board layer, an electrical exchange SA board layer, and an electrical exchange SF board layer. The backplane is not shown in the figure, and the backplane is to achieve the connection function as shown in FIG. Among them, four electrical-switched SA boards and four electrical-switched SF boards can be cross-connected through the backplane, and the connected channels can be either electrical channels or optical channels. The four electrical switching SA boards and the four optical switching boards are cross-connected through the backplane, and the connected channels are optical channels. The 66 line cards and the four optical switch boards are cross-connected through the backplane, and the connected channels are optical channels. These backplanes may be one or more opto-electric hybrid backplanes having optical and electrical pathways. It may also be a plurality of back plates composed of an optical backplane composed of an optical channel and an electrical backboard composed of electrical channels.

FIG. 7 is a schematic flowchart of an embodiment of an exchange method according to the present invention. As shown in FIG. 7, in the foregoing switching system, an exchange method provided by an embodiment of the present invention includes:

Step 701: Obtain data flow information of the service.

In this embodiment, the data flow information includes information of a destination address of the service.

Step 702: Reassemble the service into at least one first sub-service of the channel rate according to a channel rate of the first backplane.

Implementing step 702 can include the following implementations:

In the first implementation manner, if the rate of the service is an integer multiple of the channel rate of the first backplane, the service is split into a number of first sub-services whose rate is the channel rate.

In the second implementation manner, if the rate of the service is not an integer multiple of the channel rate of the first backplane.

The first type, if the rate of the service is smaller than the first backplane channel rate, combines the traffic of the service with other services into a first sub-service whose rate is the channel rate.

Second, if the rate of the service is greater than the rate of the first backplane channel, first, the service is split into a number of first sub-services and remaining services at a rate of the channel rate, and the rate of the remaining services is insufficient. The channel rate, and then, combines the remaining traffic with the traffic of other services into a first sub-service at a rate of the channel rate.

Step 703: Send the first sub-service to the destination address.

In this embodiment, the data flow information of the service is obtained, where the data flow information includes information of a destination address of the service; and the service is reconstituted into at least one rate of the channel rate according to a channel rate of the first backplane. a first sub-service; transmitting the at least one first sub-service to the destination address. The splitting of the data flow of the service into the first sub-service with the rate of the channel rate is implemented, thereby increasing the scheduling granularity of the switching system, reducing the electrical cross-capacity of the fine-grained scheduling granularity in the switching system, thereby reducing the switching system. Power consumption.

On the basis of the foregoing embodiment, after the splitting the service into the at least one first sub-service of the channel rate according to the channel rate of the first backplane, the method further includes:

Determining at least two of the foregoing destination addresses differently according to the destination address and the channel rate Reconstructing a sub-service into at least two second sub-services with the same destination address, and the rate of the second sub-service is the channel rate;

Sending the first sub-service to the destination address, including:

On the basis of the foregoing embodiment, the at least two first sub-services with different destination addresses are recombined into at least two second sub-services with the same destination address according to the destination address information and the channel rate. include:

Separating the first sub-services with different destination addresses into at least two sub-sub-services according to the destination address;

According to the destination address of the sub-sub-service,

The sub-sub-services with the same destination address are reassembled into a second sub-service with the same destination address, and the rate of the second sub-service is the channel rate.

On the basis of the above-mentioned embodiment, after the traffic is recombined into the at least one first sub-service of the channel rate according to the channel rate of the first backplane, the method further includes:

FIG. 8 is a schematic diagram of the second embodiment of the switching method of the present invention. As shown in FIG. 8 , the scheduling granularity of the optical switching board is an integer multiple of the channel rate of the backplane, and the service through the service system is as shown in 801, that is, the line card. A service that directly performs optical switching. At this time, a line card will use a certain channel data as a light letter. The form of the number is sent to the optical switchboard through the optical channel of the backplane, and the optical switchboard exchanges the optical signal to another line card.

The rate of the service is smaller than the rate of the backplane channel, and the rate of the service is not an integer multiple of the channel rate of the backplane. The way the service passes through the service system is as shown in 802-805, as shown in 802. The line card uses this data as The optical signal is sent to the optical switchboard through the optical channel of the backplane. The optical switch exchanges the optical signal to an electrical switch SA board. The SA board splits the service into groups or slices. The optical channel or electrical path through the backplane is sent to all the electrical switching SF boards, as shown in 803, while the electrical switching SF electrically exchanges the SA boards according to the purpose of this service, and all the SF boards will receive this All the packets or slices of a service are sent to the destination electrical switch SA board, as shown in 804. Finally, the destination electrical switch SA board passes the service through the backplane, the optical switchboard, and the backplane through the 805, and reaches the destination line corresponding to the service. card.

The rate of the service is not an integer multiple of the rate of the backplane channel, and the rate of the service is greater than the rate of the backplane channel. The service through the service system is as shown in 801 and 802-805, that is, the service is first split into rates. The first sub-services and the remaining services of the channel rate are scheduled, and the first sub-services are as shown in 801, that is, services for directly performing optical switching between line cards, and at this time, a certain line card takes data of a certain channel. The optical signal is sent to the optical switchboard through the backplane, and the optical switch exchanges the optical signal to another line card. In another part, the data stream of the remaining service and other services are combined into a first sub-service whose rate is the channel rate, and the first sub-service is as shown in 802, and the line card passes the data in the form of an optical signal. The board sends the optical switch to the optical switch board. The optical switch exchanges the optical signal to an electrical switch SA board. The SA board splits the service in groups or slices and sends it to all the power through the backplane. The SF board is exchanged, as shown in 803, and the electrical switching SF exchanges the SA board according to the purpose of the service, and all the SF boards send all the packets or slices of the service received to the destination electrical switching SA board. As shown in FIG. 804, the last purpose electrical switching SA board passes the service through the backplane, the optical switchboard, and the backplane through the 805, and reaches the destination line card corresponding to the service. The destination line card will receive a number of first sub-services and a second sub-service containing the remaining services, thereby restoring the original service and realizing the exchange of data. The backplane with the optical channel and the backplane with the optical channel or the electrical channel may be a backplane, such as a pure optical backplane or an opto-electric hybrid backplane, or a plurality of backplanes, such as an optical backplane. Or a combination of an optical backplane and an electric backplane or an opto-electric hybrid backplane.

The embodiment of the invention further provides a computer readable storage medium, which is stored in a computer executable An instruction that implements the above-described exchange method when the computer executable instructions are executed by a processor.

The embodiments disclosed in the present application are as described above, but the description is only for the purpose of understanding the present application, and is not intended to limit the present application. Any modifications and changes in the form and details of the embodiments may be made by those skilled in the art without departing from the spirit and scope of the disclosure. The scope defined by the appended claims shall prevail.

Industrial applicability

The embodiment of the present invention performs the switching based on the rate of the backplane channel, and splits the data stream of the service into the first sub-service with the rate of the channel rate, thereby increasing the scheduling granularity of the switching system and reducing the fine scheduling granularity in the switching system. The electrical crossover capacity, which in turn reduces the power consumption of the switching system.

Claims

An exchange system includes: a service processor and a switch, wherein the service processor and the switch are connected by a first backplane, where

The service processor is configured to acquire data flow information of the service, where the data flow information includes information of a destination address of the service, and reassemble the service into the channel according to a channel rate of the first backplane. At least one first sub-service of the rate;

The switch is configured to send the first sub-service to the destination address.
The system of claim 1 wherein said switch comprises: an electrical switch and an optical switch, said electrical switch being coupled to said optical switch by a second backplane, said optical switch being said The service processors are connected by the first backplane;

The electrical switch is configured to recombine at least two of the first sub-services having different destination addresses into at least two second sub-services having the same destination address according to the destination address and the channel rate, where The rate of the two sub-services is the channel rate;

The optical switch is configured to send the at least one first sub-service or the second sub-service with the same destination address to the destination address.
The system according to claim 2, wherein said electric exchanger comprises at least one electrical switchboard, said optical switch comprising at least one optical switchboard, said at least one electrical switchboard and said at least one light The switch board is connected by the second backboard;

The electrical switch board is configured to split the first sub-service with different destination addresses into at least two sub-sub-services according to the destination address; and according to the destination address of the sub-sub-service, the destination address is the same The sub-sub-service is reorganized into a second sub-service with the same destination address, and the rate of the second sub-service is the channel rate;

The optical switch board is configured to send the first sub-service with different destination addresses to the electrical switchboard according to the destination address.
The system according to claim 3, wherein said electrical switchboard comprises at least one switch access SA board and at least one switch network SF board, said at least one switch access SA board and at least one switch network SF board pass At least one third backplane connection, the exchange access SA board and the The optical switch is connected through the second backplane;

The SA board is configured to split the first sub-services with different destination addresses into at least two sub-sub-services according to the destination address, and send each of the sub-sub-services to the The SF board; the sub-sub-services having the same service destination address sent by the SF board are reassembled into a second sub-service with the same destination address, and the second sub-service is sent to the optical switch;

The SF board is configured to exchange the sub-sub-services to the SA board of the corresponding destination address according to the destination address of each of the sub-sub-services sent by the SA board.
The system according to any one of claims 1 to 4, wherein the service processor comprises: at least one line card, and the line card is connected to the switch through the first backplane.
The system of claim 5, wherein the line card comprises: a framing deframer, an optical transceiver, and an optical module, the framing deframer being respectively connected to the optical transceiver and the optical module The optical module is connected to the switch through the first backplane; or

The line card includes: a frame deframer, an electrical transceiver, and an optical module, wherein the frame deframer is respectively connected to the electrical transceiver and the optical module, and the optical module and the switch pass through The first backplane is connected, and the rate of the optical module is the rate of the first backplane channel.
The system according to claim 6, wherein the service processor is further configured to determine whether a target address of the data stream in the first sub-service is the same; if determining a target address of the data stream in the first sub-service If the same, the optical switch is triggered to perform the sending of the first sub-service to the address identified by the destination address information; if it is determined that the target addresses of the data flows in the first sub-service are not the same, triggering Performing, according to the destination address information and the channel rate, the at least two first sub-services with different destination addresses are recombined into at least two second sub-services with the same destination address.
An exchange method, including:

Obtaining data flow information of the service, where the data flow information includes information of a destination address of the service;

Reconfiguring the service into at least one first sub-service of the channel rate according to a channel rate of the first backplane;

Transmitting the first sub-service to the destination address.
The method of claim 8 wherein said channel rate is based on said first backplane, After the service is reconstituted into at least one first sub-service of the channel rate, the method further includes:

And reconfiguring, according to the destination address and the channel rate, at least two first sub-services with different destination addresses into at least two second sub-services with the same destination address, where the rate of the second sub-service is Channel rate

Sending the first sub-service to the destination address, including:

And transmitting, by the at least one first sub-service or the second sub-service with the same destination address, to the destination address.
The method according to claim 9, wherein said recombining at least two of said first sub-services having different destination addresses into at least two seconds having the same destination address according to said destination address information and said channel rate Sub-business, including:

Separating the first sub-services with different destination addresses into at least two sub-sub-services according to the destination address;

Reconstructing the sub-sub-services with the same destination address as the second sub-service with the same destination address according to the destination address of the sub-sub-service, and the rate of the second sub-service is the channel rate;

After the traffic is recombined into the at least one first sub-service of the channel rate according to the channel rate of the first backplane, the method further includes:

The first sub-service with different destination addresses is sent to the electrical switchboard according to the destination address.
The method according to any one of claims 8 to 10, wherein after the recombining the traffic into at least one first sub-service of the channel rate according to a channel rate of the first backplane, the method further includes :

Determining whether the target address of the data stream in the first sub-service is the same;

If it is determined that the target addresses of the data flows in the first sub-service are the same, performing, sending, sending, by the at least one first sub-service to the address identified by the destination address information;

If it is determined that the target addresses of the data flows in the first sub-service are different, performing, according to the destination address information and the channel rate, reassembling the first sub-service into a second sub-service with the same destination address .