CN107634920B - Data transmission system - Google Patents
Data transmission system Download PDFInfo
- Publication number
- CN107634920B CN107634920B CN201710774302.8A CN201710774302A CN107634920B CN 107634920 B CN107634920 B CN 107634920B CN 201710774302 A CN201710774302 A CN 201710774302A CN 107634920 B CN107634920 B CN 107634920B
- Authority
- CN
- China
- Prior art keywords
- switch
- transmission system
- switches
- data transmission
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The application provides a data transmission system, which comprises a first subdata transmission system and a second subdata transmission system, wherein the first subdata transmission system comprises a first switch unit, a second switch unit and N first junction devices, the first switch unit comprises a second junction device and N first switches, the second switch unit comprises a third junction device and N second switches, and each first switch and the second switch corresponding to each first switch are respectively in communication connection with one first junction device; the second sub data transmission system includes a third switch group, the second switch group and N fourth hub devices, and there is a communication connection between each third switch and a fourth hub device and each second switch corresponding to each third switch. The data transmission system provided by the embodiment of the application can reduce the wiring number of the system.
Description
Technical Field
The present application relates to the field of communications, and more particularly, to a data transmission system in the field of communications.
Background
A conventional Data Center (DC) mainly includes a large number of two-layer access devices and a small number of three-layer devices, and is a hierarchical convergence hierarchy, which generally includes three layers, i.e., an access layer, a convergence layer, and a core layer. The traditional hierarchical convergence hierarchical structure is equivalent to a tree structure, and data transmitted between two switches from the same DC or different DCs are forwarded through convergence layer devices and/or core layer devices.
Therefore, the number of wirings of the system is relatively large.
Disclosure of Invention
The application provides a data transmission system, which can reduce the wiring quantity of the system.
In a first aspect, the present application provides a data transmission system, including: a first subdata transmission system and a second subdata transmission system;
the first sub-data transmission system comprises a first switch group, a second switch group and N first hub devices, wherein the first switch group comprises a second hub device and N first switches, each first switch in the N first switches is in communication connection with the second hub device, the second switch group comprises a third hub device and N second switches, each second switch in the N second switches is in communication connection with the third hub device, the N first switches are in one-to-one correspondence with the N second switches, each first switch and the second switch corresponding to each first switch are in communication connection with one first hub device respectively, and N is a positive integer greater than 1;
the second sub-data transmission system includes a third switch group, the second switch group and N fourth hub devices, where the third switch group includes a fifth hub device and N third switches, each third switch in the N third switches is in communication connection with the fifth hub device, the N third switches are in one-to-one correspondence with the N second switches, and each third switch and the second switch corresponding to the third switch are in communication connection with one fourth hub device respectively.
It should be understood that, in this embodiment of the application, the second switch unit may be understood as a switch unit shared by the first sub data transmission system and the second sub transmission system, the first switch unit may be understood as a switch unit dedicated to the first sub data transmission system, and the third switch unit may be understood as a switch unit dedicated to the second sub data transmission system.
In the data transmission system provided in the embodiment of the present application, the first sub data transmission system and the second sub data transmission system share the second switch unit, so that network connectivity between the two sub data transmission systems is achieved, that is, the switches from different sub data transmission systems do not need to transmit data through convergence layer devices and/or core layer devices, and the number of wires of the system can be reduced.
It should be understood that switches in the same sub data transmission system may statically configure or learn the routing information of the virtual machines in the sub data transmission system, and therefore, the switches in the same sub data transmission system may transmit messages according to the destination addresses of the messages.
Optionally, the switch in the first sub data transmission system or the switch in the second sub data transmission system may learn the routing information of all the virtual machines in the other sub data transmission system, so that data can be transmitted between the first sub data transmission system and the second sub data transmission system.
As an optional embodiment, the first switch is configured to obtain a packet sent by a first virtual machine, where a destination address carried in the packet corresponds to a third switch, and send the first packet to the third switch according to the destination address and routing information of the first virtual machine.
In a possible implementation manner, the data transmission system further includes a first server, a second server, a controller, and a manager, where there is a communication connection between the controller and each switch in the system, there is a communication connection between the first server and a first source switch, there is a communication connection between the second server and a first target switch, the first source switch is one of the N first switches, and the first target switch is one of the N third switches; the controller is used for learning that the first virtual machine is drifted from the first server to the second server; sending a first routing strategy to each second switch in the second switch group, wherein the first routing strategy is used for indicating each second switch to learn the routing information of all the virtual machines in the first sub-data transmission system; each second switch is configured to receive the first routing policy, and learn, according to the first routing policy, routing information of all virtual machines in the first sub-data transmission system.
Optionally, the second switch in the second switch group may also obtain the routing information of all the virtual machines in the first data transmission system in multiple ways, which is not limited in this embodiment of the present application.
As an optional embodiment, the controller may directly send routing information of all the virtual machines in the first sub-data transmission system to each second switch in the second switch group; accordingly, the second switch in the second switch group receives the routing information of all the virtual machines in the first sub data transmission system from the controller.
As another alternative, the controller may send a routing policy to each second switch in the second switch group, where the routing policy is used to instruct each second switch to learn routing information of all virtual machines in the first sub-data transmission system; accordingly, the second switch in the second virtual machine receives the routing policy from the controller, and learns the routing information of all the virtual machines in the first subdata transmission system according to the routing policy.
Optionally, the second switch in the second switch group may send the routing information of all the virtual machines in the first sub data transmission system to the first switch in the first sub data transmission system and the third switch in the second sub data transmission system in a plurality of ways, which is not limited in this embodiment of the application.
As an alternative embodiment, the second switch may issue the routing information of all the virtual machines in the first subsystem to the switches in the first and second sub data transmission systems.
As another optional embodiment, the second switch may issue the network segment information of the second sub data transmission system to the first switch in the first sub data transmission system, and issue the network segment information of the first sub data transmission system to the third switch in the second sub data transmission system.
According to the data transmission system provided by the embodiment of the application, the controller issues the routing information or the routing strategy to the switches in the shared switch group as required, so that the number of routing entries can be reduced, and the switches with different meshes can share physical resources.
In addition, the second switch issues the routing information based on the network segment to the first sub-data transmission system or the second sub-data transmission system, which can further reduce the number of the routing entries learned by the first switch or the third switch.
In a possible implementation manner, the first sub data transmission system and the second sub data transmission system belong to a first data center, the data transmission system further includes a second data center, and the second data center includes a third sub signal transmission system and a fourth sub signal transmission system; the third sub-signal transmission system includes a fourth switch group, a fifth switch group and N seventh hub devices, where the fourth switch group includes an eighth hub device and N fourth switches, each fourth switch in the N fourth switches is in communication connection with the eighth hub device, the fifth switch group includes a ninth hub device and N fifth switch groups, each fifth switch in the N fifth switches is in communication connection with the ninth hub device, the N fourth switches are in one-to-one correspondence with the N fifth switches, and each fourth switch and the fifth switch corresponding to each fourth switch are in communication connection with one seventh hub device respectively; the fourth sub-signal transmission system includes a sixth switch group, the fifth switch group, and N tenth hub devices, where the sixth switch group includes an eleventh hub device and N sixth switches, each sixth switch in the N sixth switches is in communication connection with the eleventh hub device, the N sixth switches are in one-to-one correspondence with the N fifth switches, and each sixth switch and the fifth switch corresponding to each sixth switch are in communication connection with one tenth hub device respectively; the N second switches and the N fifth switches are in one-to-one correspondence, and each of the second switches and the fifth switch corresponding to each of the second switches are in communication connection with one twelfth hub device.
According to the data transmission system provided by the embodiment of the application, the second switch set of the first data center and the fifth switch set of the second data center are in communication connection through the hub device, so that network communication of the two data centers is realized, that is, the switches from different data centers do not need to forward data through the convergence layer device and/or the core layer device, and the wiring number of the system can be reduced.
In a possible implementation manner, the data transmission system further includes a third sub data transmission system, where the third sub data transmission system includes a fourth switch group, the third switch group, and N sixth hub devices, the fourth switch group includes a seventh hub device and N fourth switches, there is a communication connection between each fourth switch in the N fourth switches and the seventh hub device, the N fourth switches are in one-to-one correspondence with the N third switches, and there is a communication connection between each fourth switch and the third switch corresponding to each fourth switch and one sixth hub device, respectively.
In the data transmission system provided in the embodiment of the present application, the second switch unit in the first sub-data transmission system and the fourth switch unit in the third sub-data transmission system form the second sub-data transmission system, so that network connectivity between the first sub-data transmission system and the third sub-data transmission system is achieved, that is, switches from different sub-data transmission systems do not need to forward data through a convergence layer and/or a core layer device, and the number of wires of the system can be reduced.
In a possible implementation manner, the first sub data transmission system and the third sub data transmission system belong to the same data center, or the first sub data transmission system and the third sub data transmission system belong to different data centers.
In a possible implementation manner, the data transmission system further includes a third server and a fourth server, where a communication connection exists between the third server and a second source switch, the second source switch is one of the N first switches, a communication connection exists between the fourth server and a second target switch, and the second target switch is one of the N fourth switches; the controller is used for learning that the third virtual machine drifts from the third server to the fourth server; sending a second routing policy to each second switch in the second switch group and each third switch in the third switch group, wherein the second routing policy is used for indicating each second switch and each third switch to learn routing information of all virtual machines of the first sub-data transmission system; and each second switch and each third switch are used for receiving the second routing strategy, and learning the routing information of all the virtual machines in the first subdata transmission system and the routing information of the third virtual machine according to the second routing strategy.
In a possible implementation, at least one of the first, second, third, fourth and fifth hinge devices is an arrayed waveguide grating AWG.
Drawings
Fig. 1 is a schematic diagram of a DCN (data communication network) structure of an all-optical-out (scale-out) data communication network provided in an embodiment of the present application;
FIG. 2 is a simplified diagram of an all-optical scale-out DCN structure provided by an embodiment of the present application;
fig. 3 is a schematic structural diagram of a cell provided in an embodiment of the present application;
fig. 4 is a schematic block diagram of a data transmission system provided by an embodiment of the present application;
fig. 5 is a schematic block diagram of another data transmission system provided by an embodiment of the present application;
FIG. 6 is a schematic block diagram of yet another data transmission system provided by an embodiment of the present application;
FIG. 7 is a schematic block diagram of yet another data transmission system provided by an embodiment of the present application;
fig. 8 is a schematic block diagram of another data transmission system provided in an embodiment of the present application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
For the sake of clarity, the terms used in this application are first explained.
1. All-optical scale-out DCN structure
As shown in fig. 1, the all-optical scale-out DCN structure is also called a full interconnect structure, and is a physically star-connected network structure in which an Arrayed Waveguide Grating (AWG) device is star-connected to a plurality of small switches through a single mode fiber, and the network structure is fully interconnected on an optical link by using a wavelength division multiplexing technology and a wavelength rotation function of the AWG device. Alternatively, a full Mesh structure may include a plurality of cells, each of which is composed of an AWG and a plurality of switches (e.g., cells 1-1 to 1-4 and cells 2-1 to 2-4 in fig. 1, where the AWG and the switch in cells 2-2 to 2-4 are connected in a similar relationship to cell 2-1).
2. Full-interconnection 2(Mesh 2) structure
The Mesh2 structure refers to a full interconnect structure including N × N switches, for example, a 4 × 4 Mesh2 structure is shown in fig. 2, and the Mesh2 structure includes 4 × 4 switches connected as cells 1-2 to 1-4 and cells 2-1 to 2-4.
It should be understood that the shaded portion in fig. 2 represents the switch, and the AWG and the connection relationship between the AWG and the switch are omitted in fig. 2, and the specific connection relationship is similar to that in fig. 1.
3. Cell (cell)
As shown in fig. 3, a cell is a minimum unit in a Mesh2 structure, and one AWG device is star-connected to a plurality of small switches through a single-mode fiber, and the link interconnection of the plurality of switches is realized by using the wavelength division multiplexing technology and the wavelength rotation function of the AWG device.
It should be understood that a cell may be understood as a switch group comprising a plurality of switches, and the plurality of switches are respectively interconnected with the AWG.
It should also be understood that a cell may correspond to the concept of a service partition, a delivery unit, or a system cluster in the actual service.
It should also be understood that the connection relationship between the AWG and the switch is omitted in fig. 2, and in fact, the connection relationship between the AWG and the switch in each cell may be as shown in fig. 3, that is, the AWG establishes a star connection with a plurality of switches through a single module fiber.
Fig. 4 shows a data transmission system provided in an embodiment of the present application, where the data transmission system includes: a first sub data transmission system (sub data transmission system 1) and a second sub data transmission system (sub data transmission system 2).
The first sub-data transmission system includes a first switch group, a second switch group and N first hub devices (hub devices 2011-201N), the first switch group includes a second hub device (hub device 2021) and N first switches (switch 1011-switch 101N), each first switch of the N first switches is in communication connection with the second hub device, the second switch group includes a third hub device (hub device 2031) and N second switches (switch 1021-switch 102N), each second switch of the N second switches is in communication connection with the third hub device, the N first switches are in one-to-one correspondence with the N second switches, and each first switch and the second switch corresponding to the each first switch are in communication connection with one first hub device respectively, n is a positive integer greater than 1.
The second sub-data transmission system includes a third switch group, the second switch group, and N fourth hub devices (hub device 2041 to 204N), where the third switch group includes a fifth hub device (hub device 2051) and N third switches (switches 1031 to 103N), each third switch in the N third switches is in communication connection with the fifth hub device, the N third switches are in one-to-one correspondence with the N second switches, and each third switch and the second switch corresponding to each third switch are in communication connection with one fourth hub device.
It should be understood that a switch set described in the embodiments of the present application may be understood as a cell, and a sub data transmission system may be understood as a Mesh structure.
It should be understood that, in this embodiment of the application, the second switch unit may be understood as a switch unit shared by the first sub data transmission system and the second sub transmission system, the first switch unit may be understood as a switch unit dedicated to the first sub data transmission system, and the third switch unit may be understood as a switch unit dedicated to the second sub data transmission system.
Optionally, as shown in fig. 4, the first sub-data transmission system may include N-1 first switch groups and a second switch group, and the second sub-data transmission system may include N-1 third switch groups and the second switch group, that is, the second switch group is a shared switch group of the first sub-data transmission system and the second sub-data transmission system.
It should be understood that in fig. 4, N switches in each column form a switch group, for example, the hub device 2021 and the switches 1011 to 101N form a switch group by establishing communication connection with the hub device 2021. The N switches in each row also form a switch group, for example, N-1 switches 1011 and 1021 also form a switch group by establishing a communication connection with the hub device 2011.
For example, FIG. 5 shows a data transmission system consisting of 4 × 4 Mesh 2(Mesh 2-1, Mesh 2-2, Mesh 2-3, and Mesh 2-4), where each Mesh2 of the 4 Mesh2 selects a group of switches as a shared switch group (as shown in FIG. 5)Shown), that is, a shared switch group belongs to each Mesh2 at the same time, and the shared switch group is used for carrying east-west traffic among the meshes 2.
In fig. 5, each Mesh2 networking comprises 3 switch groups and 1 shared switch group to form a 4 × 4 Mesh2, 4 meshes 2 are pulled through any two single meshes 2 by the shared switch groups to form a Mesh2 networking, and finally 4 meshes 2 are pulled through to form a large Mesh2 networking, so as to realize a fully-connected data center.
It should be understood that fig. 5 only describes the network connection between 4 × 4 meshes 2 as an example, and the network connection between N × N meshes 2 is similar to that between 4 × 4 meshes, and is not described herein again to avoid redundancy.
Optionally, the switches in the same sub data transmission system may statically configure or learn the routing information of the virtual machine in the sub data transmission system, so that the switches in the same sub data transmission system may transmit the message according to the destination address of the message.
Optionally, the switch in the first sub data transmission system or the switch in the second sub data transmission system may learn the routing information of all the virtual machines in the other sub data transmission system, so that data can be transmitted between the first sub data transmission system and the second sub data transmission system.
For example, the first switch may obtain a packet sent by a first virtual machine, where a destination address carried in the packet corresponds to a third switch, and send the first packet to the third switch according to the destination address and routing information of the first virtual machine.
It should be understood that, since the first sub-data transmission system and the second sub-data transmission system share the second switch group, the first switch in the first switch group and the second switch in the second switch group can learn the routing information of all the virtual machines in the first sub-data transmission system, and the second switch in the second switch group and the third switch in the third switch group can learn the routing information of all the virtual machines in the second sub-data transmission system, so that the switches in the second switch group shared by the first sub-data transmission system and the second sub-data transmission system can learn the routing information of all the switches in the two sub-data transmission systems, thereby implementing data transmission between the two sub-data transmission systems.
However, since then, when the number of the sub data transmission systems included in the data transmission system is large, the routing information that each sub data transmission system needs to learn is large, and may exceed the specification of the routing table entry.
Optionally, in the data transmission system provided in this embodiment of the present application, the data transmission system further includes a first server, a second server, and a controller, where there is a communication connection between the controller and each switch in the system, there is a communication connection between the first server and a first source switch, there is a communication connection between the second server and a first target switch, the first source switch is one switch in the N first switches, and the first target switch is one switch in the N third switches.
The controller is used for learning that the first virtual machine is drifted from the first server to the second server; and sending a first routing strategy to each second switch in the second switch group, wherein the first routing strategy is used for indicating each second switch to learn the routing information of all the virtual machines in the first sub-data transmission system.
Each second switch is configured to receive the first routing policy, and learn, according to the first routing policy, routing information of all virtual machines in the first sub-data transmission system.
Optionally, the data transmission system further includes a manager, where the controller is specifically configured to learn that the first virtual machine is migrated from the first server to the second server, and issue first configuration information to the first target switch, where the first configuration information includes at least one of a port number of the first server in the first source switch, a network protocol IP address of the first virtual machine, and a VLAN number of a virtual local area network where the first virtual machine is located. The manager is configured to create a second virtual machine on the second server according to the first configuration information.
It should be appreciated that the manager creating the second virtual machine on the second server may be understood as replicating the first virtual machine on the second server, i.e. the configuration information of the second virtual machine is the same as the first virtual machine.
Optionally, the second switch in the second switch group may also obtain the routing information of all the virtual machines in the first data transmission system in multiple ways, which is not limited in this embodiment of the present application.
As an optional embodiment, the controller may directly send routing information of all the virtual machines in the first sub-data transmission system to each second switch in the second switch group; accordingly, the second switch in the second switch group receives the routing information of all the virtual machines in the first sub data transmission system from the controller.
As another alternative, the controller may send a routing policy to each second switch in the second switch group, where the routing policy is used to instruct each second switch to learn routing information of all virtual machines in the first sub-data transmission system; accordingly, the second switch in the second virtual machine receives the routing policy from the controller, and learns the routing information of all the virtual machines in the first subdata transmission system according to the routing policy.
Optionally, the second switch in the second switch group may send the routing information of all the virtual machines in the first sub data transmission system to the first switch in the first sub data transmission system and the third switch in the second sub data transmission system in a plurality of ways, which is not limited in this embodiment of the application.
As an optional embodiment, the second switch may issue the routing information of all the virtual machines in the first subsystem to the first switch in the first switch group and the third switch in the third switch group.
The all virtual machines include routing information of all virtual machines in the first sub data transmission system except the first virtual machine, and routing information of the first virtual machine drifting to the second sub data transmission system.
As another optional embodiment, the second switch may issue the network segment information of the second sub data transmission system to the first switch in the first switch group, and issue the network segment information of the first sub data transmission system to the third switch in the second sub data transmission system. Accordingly, the first switch can learn the network segment information of the second subdata transmission system, and the third switch can learn the network segment information of the first subdata transmission system.
According to the data transmission system provided by the embodiment of the application, the controller issues the routing information or the routing strategy to the switches in the shared switch group according to actual requirements, and the shared switch group learns or receives the routing information according to the indication of the controller, so that the number of routing entries can be reduced, and the switches with different meshes can share physical resources.
In addition, the second switch only issues the routing information based on the network segment to the first sub-data transmission system or the second sub-data transmission system, which can further reduce the number of the routing entries learned by the first switch or the third switch.
Alternatively, the controller may be a Software Defined Network (SDN) controller. The manager may be a service platform in the data transmission system, which is not limited in this embodiment of the present application.
Alternatively, the functions implemented by the SDN controller and the manager may be executed by a processor, or executed by another device having a processing function, which is not limited in this embodiment of the application.
Fig. 6 shows another data transmission system provided in the embodiment of the present application, and as shown in fig. 6, when the first sub data transmission system and the second sub data transmission system belong to a first data center, the data transmission system further includes a second data center, and the second data center includes the data transmission system and further includes a third sub signal transmission system and a fourth signal transmission system.
The third sub-signal transmission system includes a fourth switch group, a fifth switch group and N seventh hub devices (hub devices 2071), the fourth switch group comprises an eighth hub device (hub device 2081) and N fourth switches (switches 1041-104N), there is a communication connection between each of the N fourth switches and the eighth hub device, the fifth switch group comprises a ninth hub device (hub device 2091) and N fifth switch groups (switches 1051-105N), there is a communication connection between each of the N fifth switches and the ninth hub device, the N fourth switches and the N fifth switches are in one-to-one correspondence, and each of the fourth switches and the fifth switch corresponding to each of the fourth switches are in communication connection with one of the seventh hub devices.
The fourth sub-signal transmission system includes a sixth switch group, the fifth switch group, and N tenth hub devices (hub devices 2101), where the sixth switch group includes an eleventh hub device (hub device 2111) and N sixth switches (switches 1061 to 106N), each sixth switch of the N sixth switches is in communication connection with the eleventh hub device, the N sixth switches are in one-to-one correspondence with the N fifth switches, and each sixth switch and a fifth switch corresponding to the sixth switch are in communication connection with one tenth hub device, respectively; the N second switches and the N fifth switches are in one-to-one correspondence, and each of the second switches and the fifth switch corresponding to each of the second switches are in communication connection with one twelfth hub device.
For example, 1 shared switch group exists in a single data center, multiple shared switch groups in the DC are interconnected through hub devices to form a Mesh2 full interconnection between the DCs, that is, a Mesh cube structure is constructed in each data center and between two data centers, a routing policy is made between the meshes 2 through the shared switch groups, and the controller only issues a host route of a network segment where the virtual machine is located before the virtual machine is shifted, and the host route of the virtual machine is sent to the switches in the shared switch groups.
In the data transmission system provided in the embodiment of the present application, the first data center includes a first sub data transmission system and a second sub data transmission system, the first sub data transmission system and the second sub data transmission system share the second switch set, the second data center includes a third sub data transmission system and a fourth sub data transmission system, the third sub data transmission system and the fourth sub data transmission system share the fifth switch set, and a network connection is established with switches in the second switch set and the fifth switch set through the AWG, so as to implement a network connection between the first data center and the second data center.
Fig. 7 shows a schematic block diagram of another data transmission system provided in the embodiment of the present application, which includes a first sub data transmission system (sub data transmission system 1), a second sub data transmission system (sub data transmission system 2), and a third sub data transmission system (sub data transmission system 3).
The first sub-data transmission system includes a first switch group, a second switch group and N first hub devices (hub devices 2011-201N), the first switch group includes a second hub device (hub device 2021) and N first switches (switch 1011-switch 101N), each first switch of the N first switches is in communication connection with the second hub device, the second switch group includes a third hub device (hub device 2031) and N second switches (switch 1021-switch 102N), each second switch of the N second switches is in communication connection with the third hub device, the N first switches are in one-to-one correspondence with the N second switches, and each first switch and the second switch corresponding to the each first switch are in communication connection with one first hub device respectively, n is a positive integer greater than 1.
The second sub-data transmission system includes a third switch group, the second switch group, and N fourth hub devices (hub device 2041 to 204N), where the third switch group includes a fifth hub device (hub device 2051) and N third switches (switches 1031 to 103N), each third switch in the N third switches is in communication connection with the fifth hub device, the N third switches are in one-to-one correspondence with the N second switches, and each third switch and the second switch corresponding to each third switch are in communication connection with one fourth hub device.
The third sub-data transmission system includes a fourth switch group, the third switch group, and N sixth hub devices (hub device 2061), where the fourth switch group includes a seventh hub device (hub device 2071) and N fourth switches (switches 1041 to 104N), there is a communication connection between each fourth switch of the N fourth switches and the seventh hub device, the N fourth switches are in one-to-one correspondence with the N third switches, and there is a communication connection between each fourth switch and the third switch corresponding to the fourth switch and one sixth hub device, respectively.
Optionally, when the sub data transmission system in fig. 7 is an N × N Mesh2, the first sub data transmission system includes N-1 first switch groups and a second switch group, the third sub data transmission system includes N-1 fourth switch groups and a third switch group, the second switch group and the third switch group together serve as a shared switch group, and the second switch group and the third switch group are interconnected through N fourth hub devices to form the second sub data transmission system.
It should be understood that in fig. 7, N switches in each column form a switch group, for example, the hub device 2021 and the switches 1011 to 101N form a switch group. In a subdata transmission system, N switches in each row also form a switch group, for example, the hub device 2011, N-1 switches 1011 and 1021 also form a switch group.
Optionally, the first sub data transmission system and the third sub data transmission system may belong to the same data center or belong to different data centers, which is not limited in this embodiment of the application.
For example, as shown in FIG. 8, each Mesh2 in a 4 Mesh 2(Mesh 2-1, Mesh 2-3, Mesh 2-4, and Mesh 2-5) network selects a shared switch group (as shown in FIG. 8)
Shown) for interconnection among Mesh2, 4 meshes 2 select 4 shared switch groups to form a new Mesh 2(Mesh 2-2).
Optionally, the 4 meshes 2 may belong to the same data center or different data centers, which is not limited in this embodiment of the present application.
As an alternative, if 4 meshes 2 belong to the same data center, the vertical and horizontal meshes 2 form a Mesh cubic architecture within a DC, and Mesh 2-2 carries east-west traffic between other meshes 2.
As another alternative, if 4 Mesh 2's belong to different data centers, then the vertical and horizontal Mesh2 form a Mesh cube architecture between DCs, with Mesh 2-2 carrying east-west traffic between different DCs.
It should be understood that fig. 8 only describes the network connection between 4 × 4 meshes 2 as an example, and the network connection between N × N meshes 2 is similar to that between 4 × 4 meshes, and is not described herein again to avoid redundancy.
Optionally, in this embodiment of the application, the data transmission system further includes a third server and a fourth server, where a communication connection exists between the third server and a second source switch, the second source switch is one of the N first switches, a communication connection exists between the fourth server and a second target switch, and the second target switch is one of the N fourth switches.
The controller is used for learning that the third virtual machine drifts from the third server to the fourth server; and sending a second routing policy to each second switch in the second switch group and each third switch in the third switch group, wherein the second routing policy is used for instructing each second switch and each third switch to learn the routing information of all the virtual machines of the first sub-data transmission system.
And each second switch and each third switch are used for receiving the second routing strategy, and learning the routing information of all the virtual machines in the first subdata transmission system and the routing information of the third virtual machine according to the second routing strategy.
In the data transmission system provided in the embodiment of the application, the controller issues the routing information or the routing policy to the switches in the shared switch group (the second switch group and the third switch group) according to actual needs, so that the number of routing entries can be reduced, and thus, the switches of different meshes can share physical resources.
Optionally, a manner of issuing the routing information or the routing policy by the controller is similar to that in fig. 4, and is not described herein again to avoid repetition.
Optionally, in this embodiment of the present application, each data center may be deployed with a pair of routers, which are used to carry north and south traffic, the routers are connected to a network of a shared switch group in the data center, a shared cell is a large network egress switch and is in butt joint with the routers, and the routers are physically pulled through by optical fibers to implement full network connection.
Optionally, a firewall may be connected in series between the shared switch group and the egress router to serve as a centralized security protection, and policy access control is implemented in a guidance manner, thereby improving security of data transmission.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. A data transmission system, comprising: a first subdata transmission system and a second subdata transmission system;
the first sub-data transmission system comprises N-1 first switch groups, a second switch group and N first hub devices, wherein each first switch group comprises a second hub device and N first switches, a communication connection exists between each first switch in the N first switches and the second hub device, each second switch in the N second switches and the third hub device, the N first switches and the N second switches are in one-to-one correspondence, a communication connection exists between each first switch and the second switch corresponding to each first switch and one first hub device, and N is a positive integer greater than 1;
the second sub-data transmission system includes N-1 third switch groups, the second switch group, and N fourth hub devices, where the third switch group includes a fifth hub device and N third switches, each of the N third switches is in communication connection with the fifth hub device, the N third switches are in one-to-one correspondence with the N second switches, and each of the third switches and the second switch corresponding to the third switch are in communication connection with one fourth hub device.
2. The data transmission system of claim 1, further comprising a first server, a second server, and a controller, the controller having a communication connection with each switch in the system, the first server having a communication connection with a first source switch, the second server having a communication connection with a first destination switch, the first source switch being one of the N first switches, the first destination switch being one of the N third switches;
the controller is used for learning that the first virtual machine drifts from the first server to the second server; sending a first routing policy to each second switch in the second switch group, where the first routing policy is used to instruct each second switch to learn routing information of all virtual machines in the first sub-data transmission system;
and each second switch is used for receiving the first routing strategy and learning the routing information of all the virtual machines in the first subdata transmission system according to the first routing strategy.
3. The data transmission system of claim 1, wherein the first sub data transmission system and the second sub data transmission system belong to a first data center, the data transmission system further comprising a second data center, the second data center comprising a third sub signal transmission system and a fourth sub signal transmission system;
the third sub-signal transmission system includes a fourth switch group, a fifth switch group and N seventh junction devices, the fourth switch group includes eighth junction devices and N fourth switches, communication connection exists between each fourth switch in the N fourth switches and the eighth junction devices, the fifth switch group includes ninth junction devices and N fifth switch groups, communication connection exists between each fifth switch in the N fifth switches and the ninth junction devices, the N fourth switches and the N fifth switches are in one-to-one correspondence, and communication connection exists between each fourth switch and the fifth switch corresponding to each fourth switch and one seventh junction device respectively;
the fourth sub-signal transmission system includes a sixth switch group, the fifth switch group, and N tenth hub devices, where the sixth switch group includes an eleventh hub device and N sixth switches, each sixth switch in the N sixth switches is in communication connection with the eleventh hub device, the N sixth switches are in one-to-one correspondence with the N fifth switches, and each sixth switch and the fifth switch corresponding to each sixth switch are in communication connection with one tenth hub device respectively;
the N second switches are in one-to-one correspondence with the N fifth switches, and communication connection exists between each second switch and the corresponding fifth switch of each second switch and a twelfth junction device respectively.
4. The data transmission system of claim 1, further comprising a third sub data transmission system,
the third sub-data transmission system includes a fourth switch group, the third switch group, and N sixth hub devices, where the fourth switch group includes a seventh hub device and N fourth switches, each fourth switch in the N fourth switches is in communication connection with the seventh hub device, the N fourth switches are in one-to-one correspondence with the N third switches, and each fourth switch and the third switch corresponding to each fourth switch are in communication connection with one sixth hub device respectively.
5. The data transmission system of claim 4, wherein the first sub data transmission system and the third sub data transmission system belong to a same data center, or the first sub data transmission system and the third sub data transmission system belong to different data centers.
6. The data transmission system of claim 4, further comprising a third server and a fourth server, the third server having a communication connection with a second source switch, the second source switch being one of the N first switches, the fourth server having a communication connection with a second target switch, the second target switch being one of the N fourth switches;
the controller is used for learning that the third virtual machine drifts from the third server to the fourth server; sending a second routing policy to each second switch in the second switch group and each third switch in the third switch group, where the second routing policy is used to instruct each second switch and each third switch to learn routing information of all virtual machines of the first sub-data transmission system;
and each second switch and each third switch are used for receiving the second routing strategy and learning the routing information of all the virtual machines in the first subdata transmission system according to the second routing strategy.
7. The system according to any of claims 1 to 6, characterized in that at least one of said first, second, third, fourth and fifth hub devices is an Arrayed Waveguide Grating (AWG).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710774302.8A CN107634920B (en) | 2017-08-31 | 2017-08-31 | Data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710774302.8A CN107634920B (en) | 2017-08-31 | 2017-08-31 | Data transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107634920A CN107634920A (en) | 2018-01-26 |
| CN107634920B true CN107634920B (en) | 2020-02-21 |
Family
ID=61101819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710774302.8A Active CN107634920B (en) | 2017-08-31 | 2017-08-31 | Data transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107634920B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112118194B (en) * | 2019-06-04 | 2021-12-10 | 华为技术有限公司 | Data exchange device, server and communication system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1499077A1 (en) * | 1999-08-25 | 2005-01-19 | Nippon Telegraph and Telephone Corporation | Optical packet routing network system based on optical label switching technique |
| CN1745529A (en) * | 2003-02-13 | 2006-03-08 | 日本电信电话株式会社 | Optical communication network system |
| CN102882811A (en) * | 2012-09-10 | 2013-01-16 | 西安电子科技大学 | Data center light interconnection network system based on array waveguide grating and communication method |
| CN202759291U (en) * | 2012-08-29 | 2013-02-27 | 华自科技股份有限公司 | Step power station control system |
| CN103222236A (en) * | 2011-01-25 | 2013-07-24 | 阿拉克斯拉网络株式会社 | Network relay system and network relay device |
| CN103795654A (en) * | 2014-02-14 | 2014-05-14 | 上海交通大学 | Non-blocking Clos switching network design method based on AWG |
| CN105099556A (en) * | 2014-04-24 | 2015-11-25 | 华为技术有限公司 | Data center network and data center network deploying method |
| CN106817288A (en) * | 2015-11-30 | 2017-06-09 | 华为技术有限公司 | A kind of data centre network system and signal transmission system |
-
2017
- 2017-08-31 CN CN201710774302.8A patent/CN107634920B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1499077A1 (en) * | 1999-08-25 | 2005-01-19 | Nippon Telegraph and Telephone Corporation | Optical packet routing network system based on optical label switching technique |
| CN1745529A (en) * | 2003-02-13 | 2006-03-08 | 日本电信电话株式会社 | Optical communication network system |
| CN103222236A (en) * | 2011-01-25 | 2013-07-24 | 阿拉克斯拉网络株式会社 | Network relay system and network relay device |
| CN202759291U (en) * | 2012-08-29 | 2013-02-27 | 华自科技股份有限公司 | Step power station control system |
| CN102882811A (en) * | 2012-09-10 | 2013-01-16 | 西安电子科技大学 | Data center light interconnection network system based on array waveguide grating and communication method |
| CN103795654A (en) * | 2014-02-14 | 2014-05-14 | 上海交通大学 | Non-blocking Clos switching network design method based on AWG |
| CN105099556A (en) * | 2014-04-24 | 2015-11-25 | 华为技术有限公司 | Data center network and data center network deploying method |
| CN106817288A (en) * | 2015-11-30 | 2017-06-09 | 华为技术有限公司 | A kind of data centre network system and signal transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107634920A (en) | 2018-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10454585B2 (en) | Data center network system and signal transmission system | |
| US9654852B2 (en) | Scalable hybrid packet/circuit switching network architecture | |
| US20160380886A1 (en) | Distributed data center architecture | |
| US9288555B2 (en) | Data center network architecture | |
| WO2018183542A1 (en) | Non-blocking any-to-any data center network with packet spraying over multiple alternate data paths | |
| KR102113749B1 (en) | System and method for routing traffic between distinct infiniband subnets based on source routing | |
| CN102714668B (en) | Distributed virtual Ethernet fiber channel transponder | |
| WO2018183553A1 (en) | Non-blocking any-to-any data center network having multiplexed packet spraying within access node groups | |
| CN107852376A (en) | The system and method that the router SMA of SMP connectivity inspections for supporting high-performance computing environment mid-span virtual router port is abstracted | |
| CN101283550B (en) | Data communication system and method with virtual ports | |
| CN107735989B (en) | Method and system for site interconnection on a transport network | |
| CN106789679A (en) | A kind of Cluster Line-card Chassis, multi-chassis cascading router, routing and message processing method | |
| CN108141415A (en) | For supporting the system and method for the dual-port virtual router in high-performance computing environment | |
| WO2014066241A1 (en) | Method and apparatus for implementing a multi-dimensional optical circuit switching fabric | |
| CN107733795B (en) | Ethernet virtual private network EVPN and public network intercommunication method and device | |
| CN103139037A (en) | Method and device used for achieving flexible virtual local area network | |
| CN103856398A (en) | Virtual Trunking Over Physical Links | |
| CN110417665B (en) | EVPN networking system and method for multiple Fabric scenes of data center | |
| CN104506614A (en) | Design method for distributed multi-activity data center based on cloud computing | |
| CN107634920B (en) | Data transmission system | |
| CN103534995B (en) | A kind of interplate communication method of router cluster, router and router cluster | |
| CN107615722A (en) | Transmitting software defines network (SDN) --- abutted via the zero configuration of packet pry | |
| CN104113434A (en) | Data center network redundancy control device by adopting multi-chassis cluster system | |
| US8804571B1 (en) | Methods and apparatus for a distributed control plane | |
| CN111371535B (en) | Disaster backup system and switching method for different-place main and standby data centers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |