CN111654454B - Dual-mode mixed exchange device and method based on Crossbar - Google Patents
Dual-mode mixed exchange device and method based on Crossbar Download PDFInfo
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- CN111654454B CN111654454B CN202010578324.9A CN202010578324A CN111654454B CN 111654454 B CN111654454 B CN 111654454B CN 202010578324 A CN202010578324 A CN 202010578324A CN 111654454 B CN111654454 B CN 111654454B
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- H04L49/00—Packet switching elements
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- H—ELECTRICITY
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Abstract
The invention discloses a Crossbar-based dual-mode hybrid switching device and a data scheduling method. The dual-mode hybrid switching device comprises a Crossbar switching structure supporting dual-mode row and column scheduling, a programmable channelized data processing module and a de-channelized processing module, wherein the Crossbar switching structure comprises a cache module and a scheduling management module; the programmable channelized data processing module is used for converting input non-channelized data into channelized grouped data through slicing and grouping processing; the scheduling management module is used for scheduling the channelized data in a channel scheduling mode and scheduling the grouped data in a grouping scheduling mode; and the de-channelization processing module is used for performing de-channelization processing and data recombination on the data in the output cache. The dual-mode hybrid switching device simultaneously supports two working modes of packet switching and circuit switching, and supports heterogeneous network data conversion and transmission.
Description
Technical Field
The invention relates to the technical field of data exchange, in particular to a Crossbar-based dual-mode hybrid exchange device and a data scheduling method.
Background
In terms of data exchange, there are some typical mature exchange structures, such as Crossbar, Central buffer structure, etc. These switching fabrics are typically single mode of operation, such as a single packet-switched oriented mode of operation, or a single circuit-switched oriented mode of operation. In application level, the switching of logical virtual channels can be supported in packet-switched mode, but is still single in terms of the operating mode of the switching fabric. In addition, the existing typical switching structure has the disadvantages that the heterogeneous network data transmission is not facilitated, and the data transmission delay jitter is not easy to control, because the heterogeneous network has variable-length transmission, the transmission control is in priority of throughput and flow, and the delay control and the like are not considered.
Disclosure of Invention
The invention aims to provide a Crossbar-based dual-mode hybrid switching device which simultaneously supports two working modes of packet switching and circuit switching. The invention also aims to provide a data scheduling method for the dual-mode hybrid switching device.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows.
In a first aspect, a Crossbar-based dual-mode hybrid switching device is provided, which includes a Crossbar switching structure supporting dual-mode row and column scheduling, a programmable channelized data processing module, and a de-channelized processing module, where the Crossbar switching structure includes a cache module and a scheduling management module, and the cache module includes an input cache, an output cache, and a cross node cache; the programmable channelized data processing module is used for preprocessing input data, and the preprocessing comprises the following steps: when the input data is non-channelized data, converting the non-channelized data into channelized grouped data through slicing and grouping processing, and sending the channelized grouped data into corresponding input caches according to groups; when the input data is channelized data, sending the channelized data into a corresponding input cache according to the channel; the scheduling management module is used for scheduling the data entering the Crossbar switching structure, so that the data in the input cache is sent to a corresponding cross node cache, and the data in the cross node cache is sent to a corresponding output cache; the scheduling management module supports dual-mode line scheduling, a channel scheduling mode is adopted for scheduling channelized data, and a packet scheduling mode is adopted for scheduling packet data, wherein the channel scheduling mode is as follows: for channelized data, a time slice is taken as a scheduling management unit, a forwarding channel and the time slice are mapped, and the corresponding channel forwards the data according to the allocated time slice; for the grouped data, the data slice is taken as a scheduling management unit, the forwarding channel is mapped with the data slice, and the corresponding channel forwards the data according to the distributed data slice; and the de-channelizing processing module is used for performing de-channelizing processing and data recombination on the grouped data in the output buffer.
Further, for the forwarding scenario with both channel traffic and packet traffic, the scheduling management module performs scheduling in a forwarding control mode combining time slices and data slices, and preferentially ensures scheduling and forwarding of channelized data.
Further, the schedule management module includes: the double-module row scheduling management unit is used for scheduling input data to enable the data in the input cache to be sent to a corresponding cross node cache; and the dual-mode column scheduling management unit is used for scheduling output data so that the data in the cross node cache is sent to a corresponding output cache.
Further, the input cache is configured to cache data sent by the programmable channelized data processing module according to a channel or a slice, and respond to a scheduling request of the scheduling management module and cache transmission data to a corresponding cross node; the cross node cache is used for caching the data sent by the input cache according to a channel or a slice, responding to a scheduling request of the scheduling management module and transmitting the data to the corresponding output cache; and the output cache is used for caching the data sent by the cross node cache according to a channel or a slice.
Further, the dual mode hybrid switching apparatus further includes: and the channel management module is used for managing and configuring the programmable channelized data processing module, the de-channelized processing module and the scheduling management module.
Furthermore, the format of the output data obtained after data recombination is the same as or different from that of the original input data.
In a second aspect, a method for scheduling data is provided, where the method is used for a Crossbar-based dual-mode hybrid switch apparatus as described above, and the method includes: the programmable channelized data processing module preprocesses input data, and the preprocessing comprises the following steps: when the input data is non-channelized data, converting the non-channelized data into channelized grouped data through slicing and grouping processing, and sending the channelized grouped data into corresponding input caches according to groups; when the input data is channelized data, sending the channelized data into a corresponding input cache according to the channel; the scheduling management module schedules data entering a Crossbar switching structure, so that the data in an input buffer is sent to a corresponding cross node buffer, and the data in the cross node buffer is sent to a corresponding output buffer, wherein a channel scheduling mode is adopted for scheduling channelized data, and a packet scheduling mode is adopted for scheduling packet data, and the channel scheduling mode refers to the following steps: for channelized data, a time slice is taken as a scheduling management unit, a forwarding channel and the time slice are mapped, and the corresponding channel forwards the data according to the allocated time slice; for the grouped data, the data slice is taken as a scheduling management unit, the forwarding channel is mapped with the data slice, and the corresponding channel forwards the data according to the distributed data slice; and the de-channelizing processing module is used for performing de-channelizing processing and data recombination on the grouped data in the output buffer.
Further, the method further comprises: for the forwarding scene with both channel traffic and packet traffic, the scheduling management module performs scheduling by adopting a forwarding control mode combining time slices and data slices, and preferentially ensures scheduling and forwarding of channelized data.
Furthermore, the format of the output data obtained after data recombination is the same as or different from that of the original input data.
In a third aspect, a switch is provided comprising a Crossbar-based dual mode hybrid switching device as described in the first aspect.
According to the technical scheme, the embodiment of the invention has the following advantages: the invention provides a Crossbar-based dual-mode hybrid switching device, which is a novel switching structure capable of simultaneously supporting two working modes of packet switching and circuit switching, can support heterogeneous network data conversion and transmission, and realizes data exchange with configurable data channel bandwidth, low jitter and reliable transmission.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below.
FIG. 1 is a schematic diagram of a 4X 4 Crossbar structure;
fig. 2 is a schematic structural diagram of a Crossbar-based mode-configurable dual-mode hybrid switching device according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a method for scheduling data according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," and the like in the description and in the claims, and in the above-described drawings, are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The following are detailed descriptions of the respective embodiments.
Crossbar is a switching fabric in which the literal name is Crossbar or Crossbar. Crossbar is made up of 2N bus Crossbar cross-connects connecting N Input ports (inputs) and N Output ports (outputs).
As shown in fig. 1, in a 4 × 4 Crossbar structure, 4 buses connecting Input 1 to Input 4 are cross-connected to 4 buses connecting Output 1 to Output 4, and a control switch is provided at a cross node (cross) between a horizontal line where Input is located and a vertical line where Output is located, for controlling the cross switch to turn on the connection between Input and Output. When using Crossbar to transmit cell, the scheduler controls the on-off of Crossbar to ensure that the data packet input from an input port in a time slot can be output from an output port through Crossbar.
However, the existing Crossbar is of a single operation mode, and cannot support both the circuit-switched operation mode and the packet-switched operation mode.
Circuit switching is the maintenance of the actual electronic circuit (physical channel) during the communication process, and after the channel is established, the user always occupies the fixed transmission bandwidth from the transmitting end to the receiving end. Circuit switching is divided into two modes, time division switching and space division switching. Time division switching is to divide time into several time slots which are not overlapped with each other, and different sub-channels are established by different time slots, and the minimum unit of data transmission is time slot. Space division switching refers to that incoming lines in the switching process select outgoing lines through space positions, connection is established, and the incoming lines are immediately removed after communication is finished.
Packet switching is a communication mode in which two communication parties realize data interaction by using a store-and-forward mechanism in a packet unit in a communication process. Packet switching, also known as packet switching, divides the data communicated by a user into a plurality of smaller data segments, each of which is preceded by necessary control information as a header of the data segment, each data segment with a header constituting a packet. The header indicates the address to which the packet is sent, and when the packet is received by the switch, the packet is forwarded to the destination based on the address information in the header, which is the packet switch. The nature of packet switching is store-and-forward. In the packet-switched mode of operation, the smallest unit of data transfer is a packet.
In order to solve the problem of the existing Crossbar, an embodiment of the present invention provides a Crossbar-based configurable dual-mode hybrid switching apparatus (hereinafter referred to as a dual-mode hybrid switching apparatus for short), which can simultaneously support two working modes, namely a packet switching mode and a circuit switching mode; moreover, heterogeneous network data conversion and transmission can be supported, data exchange with configurable data channel bandwidth, low jitter and reliable transmission is realized, and the defects that the existing data exchange structure is not beneficial to heterogeneous network data transmission and data transmission delay jitter is not easy to control are overcome.
Referring to fig. 2, the dual-mode hybrid switching apparatus provided in the embodiment of the present invention includes a Crossbar switching fabric 10, a programmable channelized data processing module 20, a de-channelized processing module 30, and a channel management module 40.
The Crossbar switch fabric 10 includes N row buses respectively connected to N input ports (ports) and N column buses respectively connected to N output ports, where the N row buses and the N column buses are cross-connected vertically and horizontally, and N is a positive integer. Each row bus and each column bus are provided with a cross node, and the cross node is provided with a control switch for controlling the connection of the row bus and the column bus. The CrossBar 10 is used to perform data exchange between different input ports and output ports.
The Crossbar switch fabric 10 further includes a cache module and a scheduling management module. The cache module comprises N input caches respectively arranged at N input ports, N output caches respectively arranged at N output ports, and cross node caches respectively arranged at each cross node. The scheduling management module (or called scheduler) comprises a dual-mode row scheduling management unit and a dual-mode column scheduling management unit.
The programmable channelized data processing module 20 may have N number, and is respectively disposed at the N input ports.
The number of the de-channelizing processing modules 30 may be N, and the de-channelizing processing modules are respectively arranged at the N output ports.
The channel management module 40 is in communication connection with the programmable channelized data processing module 20, the scheduling management module, and the de-channelized processing module 30, respectively.
In this embodiment, the programmable channelized data processing module 20 is configured to perform preprocessing on input data, and the preprocessed data enters the Crossbar switching structure 10 to perform data exchange. Herein, input data is classified into two types, i.e., channelized data and non-channelized data. The channel refers to a time division channel allocated in a time slot unit, the channelization refers to allocation of the time slot channel before data transmission, and the channelized data refers to data transmitted in a channelized manner through the allocated time slot channel. Data other than channelized data that is not transmitted in a channelized manner is referred to herein as non-channelized data.
In this embodiment, for channelized data, the preprocessing operation may include: the data bandwidth is allocated, the channelized data is subjected to channel management and channel number allocation, and the channelized data is sent to the corresponding input buffer of the Crossbar switching structure 10 according to the channel.
In this embodiment, for non-channelized data, the preprocessing operation may include: the non-channelized data is converted into channelized sliced data through slicing processing, the sliced data is grouped to obtain grouped data, and then the grouped data is sent to a corresponding input buffer of the Crossbar switching structure 10 according to the grouping by adopting a grouped data processing mode. Wherein, grouping the slice data means: and combining a plurality of slices into a data packet, wherein one data packet is equivalent to one data packet, and the slices are partial contents of the data packet. Wherein the slice size management supports bandwidth definition.
In this embodiment, the preprocessing operation performed by the programmable channelized data processing module 20 mainly aims to: and completing conversion of port input data between non-channelized data and channelized data, and converting the non-channelized data into channelized data. The conversion process may include: 1) slicing processing is carried out on non-channelized data, the non-channelized data are converted into channelized grouped data, and channel management (channel distribution) is carried out, wherein the channel management specifically comprises channel number and channel label processing, channel bandwidth distribution and management and the like; 2) after the data is channelized, forwarding of the data is managed according to the Channel, and an enhanced function is brought based on the characteristic, namely, data format conversion between heterogeneous networks is supported, such as data conversion using other protocols (such as RapidIO, Fiber Channel and the like) carried by the ethernet, conversion between IPV4 and IPV6 data, application-based data conversion and the like, so that data exchange between heterogeneous networks can be performed by using a Channel management technology.
In this embodiment, the cache module includes an input cache, an output cache, and a cross-node cache (i.e., a forwarding intermediate-level cache), and a dual-port RAM (Random Access Memory) may be used, where the RAM supports parallel writing and reading of data. The input buffer is used for buffering all data sent by the programmable channelized data processing module according to channels or slices, responding to the scheduling request of the scheduling management module and transmitting the data to the corresponding cross node buffer. The input cache caches the slice data processed by the programmable channelized data processing module according to slices before entering a CrossBar switching structure; and caching the channelized data sent by the programmable channelized data processing module according to the channel. And the cross node cache is used for caching the data sent by the input cache according to a channel or a slice, responding to a scheduling request of the scheduling management module and transmitting the data to the corresponding output cache. And the output cache is used for caching the data sent by the cross node cache according to a channel or a slice.
In this embodiment, the scheduling management module responsible for scheduling and forwarding data is a dual-mode scheduler, and supports two modes, that is, a packet scheduling mode and a channel scheduling mode are mixed and compatible and exist at the same time. The scheduling management module is used for scheduling data entering the Crossbar switching structure, so that the data in the input buffer is sent to a corresponding cross node buffer, and the data in the cross node buffer is sent to a corresponding output buffer.
In this embodiment, the scheduling management module in the CrossBar switch structure has two stages of scheduling units, that is, a dual-mode row scheduling management unit and a dual-mode column scheduling management unit. The double-module row scheduling management unit is used for scheduling input data to enable the data in the input cache to be sent to a corresponding cross node cache; and the dual-mode column scheduling management unit is used for scheduling output data so that the data in the cross node cache is sent to a corresponding output cache.
Two scheduling modules are further described below.
The channel scheduling mode is that the time slices { T0, T1 and T2 … Tn-1} are used as scheduling management units to map the forwarding channels with the time slices; when the corresponding channel transmits data, the transmission control is carried out according to the allocated time slice.
The packet scheduling mode is that the data slice { C0, C1, C2 … Cn-1} is used as a scheduling management unit, and a forwarding channel is mapped with the data slice; when the corresponding channel transmits data, the transmission control is carried out according to the allocated data slice.
Particularly, for a forwarding scene with both channel traffic and packet traffic, a forwarding control mode integrating time slices and data slices is observed to form a control mode such as { Tx, Cx +1, Cy, Ty +1 }; during design, the channel flow can be preferentially ensured to obtain the scheduling right in the corresponding time slice and the flow slice, and the determined flow is scheduled and forwarded at the determined time.
In this embodiment, the de-channelization processing module 30 is configured to perform de-channelization processing and data reassembly on packet data in an output buffer, that is: the method is to remove the time slot channel information of the switching structure of the current stage and recombine the time slot channel information into a standard network data format which can be directly used by the lower-stage network equipment or the user. The output data obtained after recombination can be in the same format as the original input data or in a different format from the original input data, and because the output data and the output data can be data in different formats, the dual-mode hybrid exchange can be used for heterogeneous networks to exchange data among the heterogeneous networks.
In this embodiment, in order to be compatible with an existing data exchange structure exchange management protocol, the channel management module may be configured to perform conversion processing on an upper layer protocol (generally referring to an upper layer application protocol, and not specifying a certain protocol type), and manage and configure a programmable channelized data processing module, a de-channelized processing module, and a scheduling management module, including managing and configuring channel resources of the Crossbar exchange structure, and performing programmable channelized data processing configuration, dual-mode scheduling configuration, de-channelized processing configuration, and the like. Meanwhile, the channel management module can also support the channelized management of a multi-stage exchange system, namely, the channelized management of a multi-stage Crossbar exchange structure, and can realize the channelized management of the whole exchange forwarding path by adopting a multi-stage hierarchical localization mechanism.
In summary, the Crossbar-based mode-configurable dual-mode hybrid switch device provided by the invention is a novel switch structure capable of simultaneously supporting two working modes, namely packet switching and circuit switching. Moreover, for a heterogeneous switching network, such as network switching application between different protocols, IPV4-IPV6, Ethernet-non-Ethernet (RapidIO, Fiber channel, etc.), the switching structure of the present invention can support heterogeneous network data conversion and transmission, and implement conversion between network data of different protocol types through a programmable data processing technology, and the conversion rule is customizable and can support heterogeneous network data bearer technology and data conversion technology; the bandwidth of the data channel is configurable, the jitter is low, and the transmission is reliable.
Referring to fig. 3, an embodiment of the present invention further provides a method for scheduling data, which is used for the Crossbar-based mode configurable dual-mode hybrid switching device as described above. The method can comprise the following steps:
step S1: the programmable channelized data processing module preprocesses input data, and the preprocessing comprises the following steps: when the input data is non-channelized data, converting the non-channelized data into channelized grouped data through slicing and grouping processing, and sending the channelized grouped data into corresponding input caches according to groups; when the input data is channelized data, sending the channelized data into a corresponding input cache according to the channel;
step S2: the scheduling management module schedules data entering a Crossbar switching structure, so that the data in an input cache is sent to a corresponding cross node cache, and the data in the cross node cache is sent to a corresponding output cache, wherein a channel scheduling mode is adopted for channelized data to be scheduled, and a packet scheduling mode is adopted for packet data to be scheduled;
step S3: and the de-channelizing processing module is used for performing de-channelizing processing and data recombination on the grouped data in the output buffer.
Optionally, the step S2, where the scheduling management module schedules data entering the Crossbar switching structure, specifically includes: for channelized data, a time slice is taken as a scheduling management unit, a forwarding channel and the time slice are mapped, and the corresponding channel forwards the data according to the allocated time slice; and for the grouped data, the data slice is taken as a scheduling management unit, the forwarding channel is mapped with the data slice, and the corresponding channel forwards the data according to the distributed data slice.
Optionally, step S2 further includes: for the forwarding scene with both channel traffic and packet traffic, the scheduling management module performs scheduling by adopting a forwarding control mode combining time slices and data slices, and preferentially ensures scheduling and forwarding of channelized data.
Optionally, in step S3, the format of the output data obtained after the data reassembly is the same as or different from the original format of the input data.
Embodiments of the present invention also provide a switch including the Crossbar-based mode-configurable dual-mode hybrid switching device as described above. The switch may be an ethernet switch or a fabric switch.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; those of ordinary skill in the art will understand that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A dual-mode mixed exchange device based on Crossbar is characterized in that,
the Crossbar switching structure comprises a Crossbar switching structure supporting dual-mode row scheduling, a programmable channelized data processing module and a de-channelized processing module, wherein the Crossbar switching structure comprises a cache module and a scheduling management module, and the cache module comprises an input cache, an output cache and a cross node cache;
the programmable channelized data processing module is used for preprocessing input data, and the preprocessing comprises the following steps: when the input data is non-channelized data, converting the non-channelized data into channelized grouped data through slicing and grouping processing, and sending the channelized grouped data into corresponding input caches according to groups; when the input data is channelized data, sending the channelized data into a corresponding input cache according to the channel; the channelized data refers to data which is transmitted in a channelized mode through an allocated time slot channel, and the non-channelized data refers to data which is not transmitted in the channelized mode and is not transmitted in the channelized mode, except the channelized data;
the scheduling management module is used for scheduling the data entering the Crossbar switching structure, so that the data in the input cache is sent to a corresponding cross node cache, and the data in the cross node cache is sent to a corresponding output cache;
the scheduling management module supports dual-mode line scheduling, a channel scheduling mode is adopted for scheduling channelized data, and a packet scheduling mode is adopted for scheduling packet data, wherein the channel scheduling mode is as follows: for channelized data, a time slice is taken as a scheduling management unit, a forwarding channel and the time slice are mapped, and the corresponding channel forwards the data according to the allocated time slice; for the grouped data, the data slice is taken as a scheduling management unit, the forwarding channel is mapped with the data slice, and the corresponding channel forwards the data according to the distributed data slice;
the de-channelizing processing module is used for performing de-channelizing processing and data recombination on the grouped data in the output buffer, wherein the de-channelizing processing and the data recombination refer to the removal of time slot channel information of the switching structure at the current stage, the time slot channel information is recombined into a standard network data format which can be directly used by lower-stage network equipment or a user, and the output data obtained after the recombination is the same as or different from the original input data format.
2. The Crossbar-based dual-mode hybrid switching device according to claim 1,
for the forwarding scene with both channel traffic and packet traffic, the scheduling management module performs scheduling by adopting a forwarding control mode combining time slices and data slices, and preferentially ensures scheduling and forwarding of channelized data.
3. The Crossbar-based dual-mode hybrid switching device of claim 1, wherein the scheduling management module comprises:
the double-module row scheduling management unit is used for scheduling input data to enable the data in the input cache to be sent to a corresponding cross node cache;
and the dual-mode column scheduling management unit is used for scheduling output data so that the data in the cross node cache is sent to a corresponding output cache.
4. The Crossbar-based dual-mode hybrid switching device according to claim 1,
the input cache is used for caching the data sent by the programmable channelized data processing module according to channels or slices, responding to the scheduling request of the scheduling management module and transmitting the data to the corresponding cross node cache;
the cross node cache is used for caching the data sent by the input cache according to a channel or a slice, responding to a scheduling request of the scheduling management module and transmitting the data to the corresponding output cache;
and the output cache is used for caching the data sent by the cross node cache according to a channel or a slice.
5. The Crossbar-based dual-mode hybrid switching device according to claim 1, further comprising:
and the channel management module is used for managing and configuring the programmable channelized data processing module, the de-channelized processing module and the scheduling management module.
6. A method of scheduling data for a Crossbar-based dual-mode hybrid switching device as claimed in claim 1, the method comprising:
the programmable channelized data processing module preprocesses input data, and the preprocessing comprises the following steps: when the input data is non-channelized data, converting the non-channelized data into channelized grouped data through slicing and grouping processing, and sending the channelized grouped data into corresponding input caches according to groups; when the input data is channelized data, sending the channelized data into a corresponding input cache according to the channel;
the scheduling management module schedules data entering a Crossbar switching structure, so that the data in an input buffer is sent to a corresponding cross node buffer, and the data in the cross node buffer is sent to a corresponding output buffer, wherein a channel scheduling mode is adopted for scheduling channelized data, and a packet scheduling mode is adopted for scheduling packet data, and the channel scheduling mode refers to the following steps: for channelized data, a time slice is taken as a scheduling management unit, a forwarding channel and the time slice are mapped, and the corresponding channel forwards the data according to the allocated time slice; for the grouped data, the data slice is taken as a scheduling management unit, the forwarding channel is mapped with the data slice, and the corresponding channel forwards the data according to the distributed data slice;
and the de-channelizing processing module is used for performing de-channelizing processing and data recombination on the grouped data in the output buffer.
7. The method of claim 6, further comprising:
for the forwarding scene with both channel traffic and packet traffic, the scheduling management module performs scheduling by adopting a forwarding control mode combining time slices and data slices, and preferentially ensures scheduling and forwarding of channelized data.
8. The method of claim 6,
the output data obtained after data recombination has the same or different format with the original input data.
9. A switch comprising a Crossbar-based dual-mode hybrid switching device according to claim 1.
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