CN105812288B - Data exchange method, multi-frame interconnection system and frame equipment thereof - Google Patents
Data exchange method, multi-frame interconnection system and frame equipment thereof Download PDFInfo
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Abstract
本发明提供了一种数据交换方法、多框互联系统及其框设备。本发明提供的多框互联系统，其互连组网简单，用户可以根据需要实现二级或三级连接，只需增加原有交换板或交换框，既保留了原有一级星型连接系统的优点又克服了原系统扩容难的问题。而且本发明在基于上述结构实现系统扩容的同时，每两块交换板间是主备或负荷分担工作，从而保证了系统运行的可靠性。
The present invention provides a data exchange method, a multi-frame interconnection system and frame equipment thereof. The multi-frame interconnection system provided by the present invention has simple interconnection and networking, and users can realize secondary or tertiary connections as required, only need to add the original switching board or switching frame, which not only retains the original tier-1 star connection system The advantage also overcomes the problem of difficult expansion of the original system. In addition, the present invention realizes system expansion based on the above structure, and at the same time, the main and backup or load sharing work is performed between every two switching boards, thereby ensuring the reliability of system operation.
Description
Technical Field
The invention relates to a multi-frame interconnection communication system, in particular to a data exchange method of a multi-frame interconnection system, the multi-frame interconnection system and frame equipment thereof.
Background
With the development of the communication industry, the current communication system generally consists of a plurality of frames, and the multi-frame cascading scheme commonly adopted in the industry is one-level star connection, namely, one main frame connects a plurality of slave frames, a physical connection exists between a main frame exchange board and each slave frame exchange board, no connection exists between the slave frames and the slave frame exchange boards, and data exchange between any two slave frames must be routed and forwarded through the exchange board of a central frame. As shown in fig. 1.
In the connection mode, a connection line between one slave frame and the master frame has a problem, only the slave frame is influenced, and other slave frames are not influenced, which is also the main reason for generally adopting a star connection mode in the industry at present; and the star connection only needs the main frame exchange board to store the routing table and is responsible for data forwarding between frames, and the software is easy to realize and simple to maintain. However, this connection method is limited by the processing capability of the main frame switch board and the number of the cascade ports on the board, and often too many frames cannot be connected, and the network expansion is affected. In addition, if the main frame switch board fails, all cross-frame communication services in the system will be affected.
Therefore, it can be seen that the above-mentioned one-stage star connection system has the problems of difficult system capacity expansion, low reliability, etc.
Disclosure of Invention
The technical problem to be solved in the embodiments of the present invention is to provide a data exchange method, a multi-frame interconnection system and a frame device thereof, so as to improve the scalability and reliability of the multi-frame interconnection system.
In order to solve the above technical problem, in the data exchange method provided in the embodiment of the present invention, the multi-frame interconnection system includes two or more levels of frame devices, and each of the frame devices includes an exchange frame device and a resource frame device, where the exchange frame device is provided with a plurality of exchange boards, the resource frame device is provided with an exchange board and a service board, and each frame device is connected to a next-level frame device of the frame device in a star topology, and a top-level frame device of the multi-frame interconnection system is an exchange frame device and a previous-level frame device of the resource frame device is an exchange frame device;
the method comprises the following steps:
when forwarding a first service data, a first resource frame device judges whether a destination service board of the first service data is a service board of the frame device according to routing information locally stored by the frame device, wherein the routing information locally stored by the first resource frame device comprises routes of all service boards going to the frame device;
and when the target service board of the first service data is not the service board of the frame device, the frame device is connected to the output port of the upper-level frame device, and the first service data is sent to the upper-level frame device.
Wherein, the method further comprises:
and when the target service board of the first service data is the service board of the frame device, the first service data is sent to the corresponding service board for processing through the exchange board of the frame device.
The embodiment of the invention also provides a data exchange method of the multi-frame interconnection system, wherein the multi-frame interconnection system comprises more than two levels of frame devices, each frame device comprises an exchange frame device and a resource frame device, a plurality of exchange boards are arranged in the exchange frame device, an exchange board and a service board are arranged in the resource frame device, each frame device is in star topology connection with the next level of frame device of the frame device, the top level of frame device in the multi-frame interconnection system is the exchange frame device, and the previous level of frame device of the resource frame device is the exchange frame device;
the method comprises the following steps:
when the central exchange board of the first exchange frame equipment forwards the second service data, determining a target service board of the second service data according to routing information locally stored by the central exchange board, wherein the routing information locally stored by the central exchange board comprises the routes of the service boards of all subordinate resource frame equipment of the first exchange frame equipment;
when the target service board of the second service data is the service board of the resource frame device connected with the central exchange board, sending the second service data to the exchange board of the resource frame device connected with the central exchange board; and the number of the first and second groups,
and when the destination service board of the second service data is the service board of the resource frame device connected with the non-central exchange board of the first exchange frame device, sending the second service data to the corresponding non-central exchange board.
Wherein, the method further comprises:
and when the destination service board of the second service data is not the service board of the lower-level resource frame device of the first switching frame device, the second service data is sent to the upper-level frame device through the output port of the frame device connected to the upper-level frame device.
Wherein, the method further comprises:
when the non-central exchange board of the first exchange frame equipment forwards the third service data, determining a target service board of the third service data according to routing information locally stored by the non-central exchange board, wherein the routing information locally stored by the non-central exchange board comprises routes of service boards of all resource frame equipment connected with the non-central exchange board;
when the target service board of the third service data is the service board of the resource frame device connected with the non-central exchange board, sending the third service data to the exchange board of the resource frame device connected with the non-central exchange board; and the number of the first and second groups,
and when the destination service board of the third service data is not the service board of the resource frame device connected with the non-central exchange board, the third service data is sent to the central exchange board through the output port of the non-central exchange board connected to the central exchange board.
The embodiment of the invention also provides first resource frame equipment of a multi-frame interconnection system, wherein the multi-frame interconnection system comprises more than two levels of frame equipment, and the frame equipment comprises exchange frame equipment and resource frame equipment, wherein a plurality of exchange boards are arranged in the exchange frame equipment, exchange boards and service boards are arranged in the resource frame equipment, each frame equipment is in star topology connection with the next level of frame equipment of the frame equipment, the top level of frame equipment in the multi-frame interconnection system is the exchange frame equipment, and the previous level of frame equipment of the resource frame equipment is the exchange frame equipment;
the first resource block device includes:
a determining unit, configured to determine, when forwarding a second service data, whether a destination service board of the second service data is a service board of a local frame device according to routing information locally stored in the local frame device, where the routing information locally stored in the first resource frame device includes routes to all service boards of the local frame device;
and the first forwarding unit is configured to, when the destination service board of the second service data is not the service board of the frame device, connect the frame device to an output port of a higher-level frame device, and send the second service data to the higher-level frame device.
Wherein, the first resource frame device further includes:
and the second forwarding unit is configured to, when the destination service board of the second service data is a service board of the frame device, send the second service data to a corresponding service board for processing through the switch board of the frame device.
The embodiment of the invention also provides first exchange frame equipment of a multi-frame interconnection system, wherein the multi-frame interconnection system comprises more than two levels of frame equipment, and the frame equipment comprises exchange frame equipment and resource frame equipment, wherein a plurality of exchange boards are arranged in the exchange frame equipment, exchange boards and service boards are arranged in the resource frame equipment, each frame equipment is in star topology connection with the next level of frame equipment of the frame equipment, the top level of frame equipment in the multi-frame interconnection system is the exchange frame equipment, and the previous level of frame equipment of the resource frame equipment is the exchange frame equipment;
the first swap frame apparatus includes:
a first determining unit, configured to determine, when a central switch board of the central switch board forwards second service data, a destination service board of the second service data according to routing information locally stored in the central switch board, where the routing information locally stored in the central switch board includes routes of service boards of all lower-level resource frame devices of a first switch frame device;
a third forwarding unit, configured to send the second service data to the switch board of the resource frame device connected to the central switch board when the destination service board of the second service data is the service board of the resource frame device connected to the central switch board; and the number of the first and second groups,
and the fourth forwarding unit is configured to send the second service data to a corresponding non-central switching board when the destination service board of the second service data is a service board of a resource frame device connected to the non-central switching board of the first switching frame device.
Wherein, the first exchange frame device further comprises:
and a fifth forwarding unit, configured to, when a destination service board of the second service data is not a service board of a lower-level resource frame device of the first switching frame device, connect to an output port of a higher-level frame device through the frame device, and send the second service data to the higher-level frame device.
Wherein, the first exchange frame device further comprises:
a second determining unit, configured to determine, when a non-central switch board of the local device forwards third service data, a destination service board of the third service data according to route information locally stored by the non-central switch board, where the route information locally stored by the non-central switch board includes routes of service boards of all resource frame devices connected to the non-central switch board;
a sixth forwarding unit, configured to send the third service data to the switch board of the resource frame device connected to the non-central switch board when the destination service board of the third service data is the service board of the resource frame device connected to the non-central switch board; and the number of the first and second groups,
and a seventh forwarding unit, configured to, when a destination service board of the third service data is not a service board of the resource frame device connected to the non-central switch board, connect to an output port of a central switch board through the non-central switch board, and send the third service data to the central switch board.
The embodiment of the invention also provides a multi-frame interconnection system, which comprises more than two levels of frame devices, wherein each frame device comprises the first exchange frame device and the first resource frame device, each exchange frame device is provided with a plurality of exchange boards, each resource frame device is provided with an exchange board and a service board, each frame device is connected with the next level frame device of the frame device in a star topology manner, the top level frame device in the multi-frame interconnection system is the exchange frame device, and the last level frame device of the resource frame device is the exchange frame device.
In the multi-frame interconnection system, two central switching boards of each switching frame device work in a master-slave mode or a load sharing mode; every two of the plurality of non-central exchange boards are used as a group, and the two exchange boards in each group work in a main-standby mode or a load sharing mode;
each resource frame device comprises two exchange boards which work in a master-standby mode or a load sharing mode.
Compared with the prior art, the data exchange method, the multi-frame interconnection system and the frame equipment thereof provided by the embodiment of the invention have the advantages that the star interconnection networking is simple, the user realizes the second-level or third-level connection according to the requirement, and only the original exchange board or exchange frame is needed to be added, so that the advantages of the original first-level star connection system are kept, and the problem of difficult capacity expansion of the original system is solved. In addition, the embodiment of the invention realizes the system capacity expansion based on the structure, and simultaneously, the main and standby switch boards or the load sharing work is carried out between every two switch boards, thereby ensuring the reliability of the system operation.
Drawings
FIG. 1 is a schematic diagram of a one-level star connection of a multi-frame interconnect system of the prior art;
FIG. 2 is a schematic diagram of a two-stage star connection of a multi-frame interconnect system according to an embodiment of the present invention;
fig. 3 is a schematic flow chart illustrating a data exchange method applied to a resource block according to an embodiment of the present invention;
fig. 4 is a schematic flow chart illustrating a data exchange method applied to an exchange box according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a resource block according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a switch box according to an embodiment of the present invention;
FIG. 7 is a first example of two-stage star-connected data forwarding according to an embodiment of the present invention;
FIG. 8 is a second example of two-stage star-connected data forwarding in an embodiment of the present invention;
fig. 9 is a schematic three-level star connection diagram of the multi-frame interconnection system according to the embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
An embodiment of the present invention provides a multi-frame interconnection system and a data exchange method thereof, where the system includes multiple frame devices, and may specifically include one exchange frame device and multiple resource frame devices (for simplicity, the exchange frame device and the resource frame device are also referred to as an exchange frame and a resource frame, respectively). Here, the switching frame is a frame device for implementing message switching control, and the resource frame is a frame device for performing service processing on a message. The switching frame is provided with a plurality of switching boards (at least two switching boards) for performing cross-frame forwarding processing on the message, and the resource frame is provided with a switching board for forwarding the message and a service board for processing the service. The number of the exchange boards in the resource frame can be 1 or 2, and the service board is provided with a plurality of service boards according to the system requirement and the service processing requirement. The exchange board in the exchange frame only provides cross-frame routing to realize cross-frame data forwarding
The exchange boards in the exchange frame in the embodiment of the invention can work independently, or two adjacent exchange boards can be used as an exchange group, and the two exchange boards in the group work in a main-standby or load sharing mode.
When each exchange board in the exchange frame works independently, one exchange board in the exchange frame is used as a central exchange board, other exchange boards are used as non-central exchange boards, the central exchange board and each non-central exchange board are connected in a star shape, each exchange board can be connected to a plurality of resource frames through the exchange board in the resource frame, namely, the exchange boards and the resource frames form a star connection, and therefore the whole system is in a two-stage star structure.
In order to further improve the reliability of the system, two adjacent exchange boards in the exchange frame can be used as one exchange group, and one exchange board can only be used as a member of one exchange group and cannot be used as a member of more than two exchange groups simultaneously. Two exchange boards in the exchange group work in a main-standby or load sharing mode. At this time, one of the groups of switching boards is a central switching board group, the others are non-central switching board groups, the non-central switching board groups are connected with the central switching board group in a star manner, each group of switching board groups can be connected with a plurality of resource frames through the switching boards in the resource frames, that is, the switching board groups and the resource frames in each group form a star connection, so that the whole system is in a two-stage star structure, as shown in fig. 2 specifically:
the multi-frame interconnection system is composed of a plurality of resource frames and a switching frame. The resource frame consists of two exchange boards and 1 or more service boards. At least two exchange plates are arranged in the exchange frame, and every two exchange plates form a group. The exchange boards in the resource frame adopt exchange boards with the same structure and function, and the exchange boards in the exchange frame adopt exchange boards with the same structure and function, but the exchange boards in the resource frame and the exchange boards in the exchange frame can adopt exchange boards with different structures and functions. The main and standby or load sharing working modes of the two exchange boards in the resource frame. Each group of exchange boards in the exchange frame work in a main-standby or load sharing mode.
Each group of the switch boards in the switch frame and the switch boards in the resource frame can be connected with each other through physical connecting lines. Each group of switch boards in the switch frame can be connected with a plurality of resource frames. In this embodiment, the resource frames do not need to be connected by a logistics connection line, and data forwarding between any two resource frames needs to be realized by a switch frame.
One group of the exchange plate groups in the exchange frame is a central exchange plate, and the other groups are non-central exchange plate groups. Each group of non-central exchange plate group and the central exchange plate group can be connected through a physical connecting line. There is no need for physical connections between the non-central switching board groups.
The second-level star-shaped interconnection structure of the multi-frame interconnection system in the embodiment of the invention is described above, and the structure only needs to add the exchange board or the exchange frame, thereby not only retaining the advantages of the first-level star-shaped interconnection system, but also overcoming the problem of difficult capacity expansion of the original system. Moreover, the embodiment of the invention can realize the system capacity expansion based on the structure, and can further improve the reliability of the system operation through the main/standby or load sharing work between each group of two exchange boards. The star interconnection networking is simple, and a user can further realize three-level connection on the basis of the structure according to needs, so that the system capacity expansion is facilitated. It can be seen that, the above structure of this embodiment can solve the difficult problem of system capacity expansion of the existing one-level star connection, and improves the expandability and reliability of the system.
Based on the structure, the embodiment of the invention also provides a method for data transmission between frames based on the multi-frame interconnection system. In this embodiment, the route on the non-central switch board of the switch frame is only stored in the service board route and a default route in all resource frames directly connected to the switch board, where the default route is to forward the message through a port connected to the central switch board when the route is not found in the service board route; the central exchange board of the exchange frame stores the service board routes in all the resource frames directly connected with the exchange board and the network segment routes to other resource frames except the resource frame directly connected with the exchange board. When transmitting a message, the system specifically processes the following steps:
1. and the source business board in the resource frame sends data to the exchange board in the resource frame.
2. The frame switch board transmits data to the switch board in the switch frame by two-layer forwarding, and may transmit the data to a non-central switch board or a central switch board in the switch frame according to the connection condition of the resource frame.
3. And after receiving the data, the non-central exchange board sends the data to the central exchange board through a default route.
4. The central switch board sends data to the switch board in the destination resource frame through a specific route, or sends data to the non-central switch board through a network segment route, and the sending to the non-central switch board is taken as an example for explanation below.
5. After receiving the data sent by the central exchange board, the non-central exchange board sends the data to a destination resource frame connected with the exchange board through a specific route.
6. And the exchange board in the target resource frame sends the data to the target service board in the frame, and the target service board performs specific processing on the data.
As can be seen from the foregoing, the data exchange method of this embodiment is applied to a multi-frame interconnection system, where the multi-frame interconnection system includes more than two levels of frame devices, and each frame device includes an exchange frame device and a resource frame device, where a plurality of exchange boards are disposed in the exchange frame device, an exchange board and a service board are disposed in the resource frame device, and each frame device is connected to a next-level frame device of the frame device in a star topology, and a top-level frame device in the multi-frame interconnection system is an exchange frame device, a previous-level frame device of the resource frame device is an exchange frame device, and a previous-level frame device of the exchange frame device can only be an exchange frame device.
When a certain resource frame device (for convenience, the resource frame device is hereinafter referred to as a first resource frame device) in the system performs data exchange forwarding processing, as shown in fig. 3, the method may specifically include the following steps:
and step 32, when the destination service board of the first service data is not the service board of the frame device, connecting the frame device to the output port of the upper-level frame device, and sending the first service data to the upper-level frame device.
When the destination service board of the first service data is a service board of the frame device, the method may further include the following steps: and sending the first service data to a corresponding service board for processing through the exchange board of the frame device.
When a certain switch frame device in the above system (for convenience, this switch frame device is hereinafter referred to as a first switch frame device, and this first switch frame device may be a top-level switch frame device when the system includes a two-level star topology, and this first switch frame device may be a top-level switch frame device or an intermediate-level switch frame device when the system includes a three-level or more star topology) performs data exchange forwarding processing, as shown in fig. 4, the method may specifically include the following steps:
and 43, when the destination service board of the second service data is the service board of the resource frame device connected to the non-central exchange board of the first exchange frame device, sending the second service data to the corresponding non-central exchange board.
In this embodiment, when the destination service board of the second service data is not a service board of a lower resource frame device of the first switching frame device, the method may further include the following steps: and sending the second service data to the upper-level frame device through the output port of the frame device connected to the upper-level frame device.
In this embodiment, when the non-central switch board of the first switch frame device forwards the third service data, the non-central switch board determines the destination service board of the third service data according to the routing information locally stored in the non-central switch board, where the routing information locally stored in the non-central switch board includes the routes of the service boards of all resource frame devices connected to the non-central switch board:
when the destination service board of the third service data is a service board of the resource frame device connected to the non-central exchange board, sending the third service data to the exchange board of the resource frame device connected to the non-central exchange board;
when the destination service board of the third service data is not the service board of the resource frame device connected to the non-central switching board, the third service data is sent to the central switching board through the output port of the non-central switching board connected to the central switching board.
Based on the above method, embodiments of the present invention further provide a multi-frame interconnection system for implementing the above method, where the multi-frame interconnection system includes more than two levels of frame devices, and the frame devices specifically include a first exchange frame device and a first resource frame device, where each exchange frame device is provided with a plurality of exchange boards, each resource frame device is provided with an exchange board and a service board, and each frame device and a next-level frame device of the frame device are connected in a star topology, and a top-level frame device in the multi-frame interconnection system is an exchange frame device, and a previous-level frame device of the resource frame device is an exchange frame device.
In the embodiment of the invention, the central exchange boards of each exchange frame device comprise two, and the two central exchange boards work in a main-standby mode or a load sharing mode; every two of the plurality of non-central exchange boards are used as a group, and the two exchange boards in each group work in a main-standby mode or a load sharing mode. Each resource frame device comprises two exchange boards which work in a master-standby mode or a load sharing mode.
Referring to fig. 5, a first resource frame device of a multi-frame interconnect system according to an embodiment of the present invention includes:
a determining unit 51, configured to determine, when forwarding a second service data, whether a destination service board of the second service data is a service board of a local frame device according to routing information locally stored in the local frame device, where the routing information locally stored in the first resource frame device includes routes of all service boards that go to the local frame device;
the first forwarding unit 52 is configured to, when the destination service board of the second service data is not the service board of the frame device, connect to the output port of the upper-level frame device through the frame device, and send the second service data to the upper-level frame device.
Further, the first resource frame device of this embodiment further includes:
and the second forwarding unit is configured to, when the destination service board of the second service data is a service board of the frame device, send the second service data to a corresponding service board for processing through the switch board of the frame device.
The embodiment further provides a first swap frame device applied to the multi-frame interconnect system, as shown in fig. 6, the first swap frame device includes:
a first determining unit 61, configured to determine, when a central switch board of itself forwards second service data, a destination service board of the second service data according to routing information locally stored in the central switch board, where the routing information locally stored in the central switch board includes routes of service boards of all lower level resource frame devices of a first switch frame device;
a third forwarding unit 62, configured to send the second service data to the switch board of the resource frame device connected to the central switch board when the destination service board of the second service data is the service board of the resource frame device connected to the central switch board; and the number of the first and second groups,
a fourth forwarding unit 63, configured to send the second service data to a corresponding non-central switch board when a destination service board of the second service data is a service board of a resource frame device connected to the non-central switch board of the first switch frame device.
Further, the first exchange frame device further includes:
and a fifth forwarding unit, configured to, when a destination service board of the second service data is not a service board of a lower-level resource frame device of the first switching frame device, connect to an output port of a higher-level frame device through the frame device, and send the second service data to the higher-level frame device.
Further, the first swap frame device further includes:
a second determining unit, configured to determine, when a non-central switch board of the local device forwards third service data, a destination service board of the third service data according to route information locally stored by the non-central switch board, where the route information locally stored by the non-central switch board includes routes of service boards of all resource frame devices connected to the non-central switch board;
a sixth forwarding unit, configured to send the third service data to the switch board of the resource frame device connected to the non-central switch board when the destination service board of the third service data is the service board of the resource frame device connected to the non-central switch board; and the number of the first and second groups,
and a seventh forwarding unit, configured to, when a destination service board of the third service data is not a service board of the resource frame device connected to the non-central switch board, connect to an output port of a central switch board through the non-central switch board, and send the third service data to the central switch board.
As can be seen from the above description, the multi-frame interconnected communication system of the embodiment of the present invention includes a plurality of resource frames and a switch frame. The exchange frame comprises a plurality of exchange plates, every two exchange plates are in a group, and the main and standby exchange plates or the load sharing work mode are adopted. The software is divided into a group of central exchange boards and a plurality of groups of non-central exchange boards, and the non-central exchange boards are connected with the central exchange boards in a star shape. Each group of the exchange boards can be connected with a plurality of resource frames, and the resource frames are connected with the exchange boards in a star shape. The non-central exchange board does not need to store the routes of all resource frames, and only stores the service board routes and a default route in all resource frames connected with the exchange board of the group, wherein the default route is that the output ports of all messages which do not find the route are the ports connected with the central exchange board, and when the message finds the route, the default route is taken to the central exchange board, so that the realization is simple, systematic and reliable; the central exchange board stores the service board routes to all resource frames and the network segment routes to other resource frames connected with the group of exchange boards.
Finally, the invention will be described in more detail by means of a few specific examples, with reference to the accompanying drawings.
With reference to fig. 7, the following description will be made in detail, in which switching boards X and Y in a switching frame are central switching boards, and others are non-central switching boards, taking communication between a service board a and a service board B as an example, and the service boards a and B are respectively in resource frames connected to different non-central switching boards, for a data switching method based on the multi-frame interconnection system provided by the present invention:
step A: the service board A sends data to the service board B, and the target MAC is a specific MAC.
And B: after receiving the message, the switching board in the resource frame 0 sends the message to the port connected with the switching frame according to the two-layer switching.
And C: after receiving the message, the exchange board A in the exchange frame sends the message to the port connected with the central exchange board through the default route.
Step D: after receiving the message, the central exchange board X sends the message to the port connected with the exchange board N after routing through the network segment.
Step E: and after receiving the message, the switch board N searches for the route and then sends the message to the switch board of the target resource frame N.
Step F: after receiving the message, the destination resource frame N exchange board directly transmits the message to the destination service board B in a two-layer transfer mode.
Step G: the communication flow from the service board B to the service board a during reverse transmission is similar to the above flow.
With reference to fig. 8, taking communication between a service board a and a service board C as an example two, the service board a is in a resource frame connected to a non-central board, and the service board C is in a resource frame connected to a central switching board, so as to describe in detail the specific steps of the data switching method based on the multi-frame interconnection system provided by the present invention:
step a: the service board A sends data to the service board C, and the target MAC is a specific MAC.
Step b: after receiving the message, the switching board in the resource frame 0 sends the message to the port connected with the switching frame according to the two-layer switching.
Step c: after receiving the message, the exchange board A in the exchange frame sends the message to the port connected with the central exchange board through the default route.
Step d: after receiving the message, the central exchange board X sends the message to the port connected with the exchange board H through the specific route.
Step e: and after receiving the message, the switchboard H searches for the route and then sends the message to the switchboard of the target resource frame N.
Step f: after receiving the message, the destination resource frame N exchange board directly transmits the message to the destination service board C in a two-layer transfer mode.
Step g: the communication flow from the service board C to the service board a during reverse transmission is similar to the above flow.
The resource frames of the service boards a and B, C are all hung under different switch boards, so that the resource frames must be forwarded through the central switch board, and when the resource frames of the source board and the destination board are hung under the same group of switch boards, the resource frames do not need to pass through the central switch board.
As can be seen from the above description, the system and the data exchange method provided in the embodiments of the present invention have the following advantages:
1. the multi-frame interconnection system provided by the embodiment of the invention is provided with the independent exchange frame, and a plurality of exchange boards are arranged in the exchange frame, so that more resource frames can be connected, the processing capacity of the system is enhanced, and the capacity of the system is enlarged. Moreover, when the number of resource frames connected to one switching frame cannot meet the requirement, the system can be expanded to a star connection with three or more stages by forming the star connection among a plurality of switching frames, and fig. 9 provides a schematic diagram of the three-stage star connection. Therefore, the system of the embodiment can realize capacity expansion only by increasing the number of the exchange boards or the exchange frames, thereby facilitating the capacity expansion of the system.
2. In the embodiment, multiple groups of switch boards all undertake cross-frame data forwarding, a group of switch boards fails, abnormal communication between frames of the whole system cannot be caused, and main and standby switch boards or load sharing work is performed among each group of switch boards, so that the reliability of the system is improved.
3. In addition, only one routing entry stored in the central switch board on the non-central switch board reduces the routing entries stored in software, and is convenient for system maintenance.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A data exchange method of a multi-frame interconnection system is characterized in that the multi-frame interconnection system comprises more than two levels of frame devices, each frame device comprises an exchange frame device and a resource frame device, wherein a plurality of exchange boards are arranged in the exchange frame device, the exchange boards in the exchange frame device comprise a central exchange board and a non-central exchange board, the central exchange board and the non-central exchange boards are in star connection, physical connection is not needed between the non-central exchange board groups, an exchange board and a service board are arranged in the resource frame device, each frame device is in star topology connection with the next frame device of the frame device, the top frame device in the multi-frame interconnection system is the exchange frame device, and the previous frame device of the resource frame device is the exchange frame device;
the method comprises the following steps:
when the central exchange board of the first exchange frame equipment forwards the second service data, determining a target service board of the second service data according to routing information locally stored by the central exchange board, wherein the routing information locally stored by the central exchange board comprises the routes of the service boards of all subordinate resource frame equipment of the first exchange frame equipment;
when the target service board of the second service data is the service board of the resource frame device connected with the central exchange board, sending the second service data to the exchange board of the resource frame device connected with the central exchange board; and the number of the first and second groups,
and when the destination service board of the second service data is the service board of the resource frame device connected with the non-central exchange board of the first exchange frame device, sending the second service data to the corresponding non-central exchange board.
2. The method of claim 1, further comprising:
and when the destination service board of the second service data is not the service board of the lower-level resource frame device of the first switching frame device, the second service data is sent to the upper-level frame device through the output port of the frame device connected to the upper-level frame device.
3. The method of claim 1 or 2, further comprising:
when the non-central exchange board of the first exchange frame equipment forwards the third service data, determining a target service board of the third service data according to routing information locally stored by the non-central exchange board, wherein the routing information locally stored by the non-central exchange board comprises routes of service boards of all resource frame equipment connected with the non-central exchange board;
when the target service board of the third service data is the service board of the resource frame device connected with the non-central exchange board, sending the third service data to the exchange board of the resource frame device connected with the non-central exchange board; and the number of the first and second groups,
and when the destination service board of the third service data is not the service board of the resource frame device connected with the non-central exchange board, the third service data is sent to the central exchange board through the output port of the non-central exchange board connected to the central exchange board.
4. The first exchange frame device of the multi-frame interconnection system is characterized in that the multi-frame interconnection system comprises more than two levels of frame devices, each frame device comprises an exchange frame device and a resource frame device, wherein a plurality of exchange boards are arranged in the exchange frame device, the exchange boards in the exchange frame device comprise a central exchange board and a non-central exchange board, the central exchange board is connected with the non-central exchange boards in a star shape, physical connection is not needed between non-central exchange board groups, an exchange board and a service board are arranged in the resource frame device, each frame device is connected with the next level of frame device of the frame device in a star topology connection, the top level of frame device in the multi-frame interconnection system is the exchange frame device, and the previous level of frame device of the resource frame device is the exchange frame device;
the first swap frame apparatus includes:
a first determining unit, configured to determine, when a central switch board of the central switch board forwards second service data, a destination service board of the second service data according to routing information locally stored in the central switch board, where the routing information locally stored in the central switch board includes routes of service boards of all lower-level resource frame devices of a first switch frame device;
a third forwarding unit, configured to send the second service data to the switch board of the resource frame device connected to the central switch board when the destination service board of the second service data is the service board of the resource frame device connected to the central switch board; and the number of the first and second groups,
and the fourth forwarding unit is configured to send the second service data to a corresponding non-central switching board when the destination service board of the second service data is a service board of a resource frame device connected to the non-central switching board of the first switching frame device.
5. The first switch box device of claim 4, further comprising:
and a fifth forwarding unit, configured to, when a destination service board of the second service data is not a service board of a lower-level resource frame device of the first switching frame device, connect to an output port of a higher-level frame device through the frame device, and send the second service data to the higher-level frame device.
6. The first switch box device of claim 4 or 5, further comprising:
a second determining unit, configured to determine, when a non-central switch board of the local device forwards third service data, a destination service board of the third service data according to route information locally stored by the non-central switch board, where the route information locally stored by the non-central switch board includes routes of service boards of all resource frame devices connected to the non-central switch board;
a sixth forwarding unit, configured to send the third service data to the switch board of the resource frame device connected to the non-central switch board when the destination service board of the third service data is the service board of the resource frame device connected to the non-central switch board; and the number of the first and second groups,
and a seventh forwarding unit, configured to, when a destination service board of the third service data is not a service board of the resource frame device connected to the non-central switch board, connect to an output port of a central switch board through the non-central switch board, and send the third service data to the central switch board.
7. A multi-frame interconnection system, characterized in that, the multi-frame interconnection system includes more than two levels of frame devices, the frame devices include the first exchange frame device and the resource frame device as claimed in claim 4, wherein, each exchange frame device is provided with a plurality of exchange boards, the exchange boards in the exchange frame devices include a central exchange board and a non-central exchange board, the central exchange board and the non-central exchange board are connected in star, the non-central exchange board group does not need physical connection, each resource frame device is provided with an exchange board and a service board, and each frame device and the next frame device of the frame device are connected in star topology, and the top frame device in the multi-frame interconnection system is the exchange frame device, and the previous frame device of the resource frame device is the exchange frame device.
8. The multi-frame interconnect system of claim 7,
the central exchange boards of each exchange frame device comprise two central exchange boards, and the two central exchange boards work in a main-standby mode or a load sharing mode; every two of the plurality of non-central exchange boards are used as a group, and the two exchange boards in each group work in a main-standby mode or a load sharing mode;
each resource frame device comprises two exchange boards which work in a master-standby mode or a load sharing mode.
Priority Applications (2)
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|---|---|---|---|
| CN201410834694.9A CN105812288B (en) | 2014-12-29 | 2014-12-29 | Data exchange method, multi-frame interconnection system and frame equipment thereof |
| PCT/CN2015/073905 WO2016106972A1 (en) | 2014-12-29 | 2015-03-09 | Data exchange method, multi-frame interconnection system, and frame device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410834694.9A CN105812288B (en) | 2014-12-29 | 2014-12-29 | Data exchange method, multi-frame interconnection system and frame equipment thereof |
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| CN105812288A CN105812288A (en) | 2016-07-27 |
| CN105812288B true CN105812288B (en) | 2020-04-10 |
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| CN201410834694.9A Expired - Fee Related CN105812288B (en) | 2014-12-29 | 2014-12-29 | Data exchange method, multi-frame interconnection system and frame equipment thereof |
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| CN106502841B (en) * | 2016-10-27 | 2019-06-07 | 杭州迪普科技股份有限公司 | Data back up method and device |
| CN111865837B (en) * | 2018-04-03 | 2024-04-12 | 华为技术有限公司 | Data communication system and method |
| CN113328951B (en) * | 2018-09-18 | 2022-10-28 | 阿里巴巴集团控股有限公司 | Node equipment, routing method and interconnection system |
| CN113810273B (en) * | 2020-06-16 | 2024-10-15 | 深圳市中兴微电子技术有限公司 | Path determination method, device, equipment and storage medium |
| CN113179295B (en) * | 2021-04-02 | 2022-11-01 | 杭州迪普科技股份有限公司 | Message processing method and device |
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| US20060106968A1 (en) * | 2004-11-15 | 2006-05-18 | Wooi Teoh Gary C | Intelligent platform management bus switch system |
| CN100420217C (en) * | 2005-06-28 | 2008-09-17 | 华为技术有限公司 | Interframe interconnection communication system and data exchanging method thereof |
| CN100426722C (en) * | 2006-01-06 | 2008-10-15 | 华为技术有限公司 | Concatenation system |
| CN101247663B (en) * | 2008-03-07 | 2011-03-02 | 中兴通讯股份有限公司 | Considerable routing system and its forwarding table generation method |
| US20120110184A1 (en) * | 2010-10-29 | 2012-05-03 | Lockheed Martin Corporation | Physical layer photonic protocol switch |
| CN103152260B (en) * | 2013-02-21 | 2019-02-15 | 中兴通讯股份有限公司 | Message forwarding system, method and device |
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| CN105812288A (en) | 2016-07-27 |
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