CN102195818B - Data service processing single board and method - Google Patents

Abstract

The present invention relates to a single board for data service processing, a method, a two-layer switch processing module and equipment, the single board includes: a data service processing module, a two-layer switch processing module, a CPU, multiple input ports and multiple output ports, the The CPU is connected to the data service processing module and the Layer 2 switch processing module, the data service processing module is connected to multiple output ports, and the Layer 2 switch processing module is connected to the multiple input ports. The configuration information can be changed at any time through the configuration of the layer-2 switching processing module, and the allocation and selection of paths can be performed according to the configuration information, and the allocation of data services can be flexibly changed. The same physical capacity can carry more data traffic. Unnecessary occupancy of routers on the upper layer can be avoided, the number of routers can be significantly reduced, and the cost can be reduced.

Description

Data service processing single board and method

technical field

The invention relates to the technical field of optical transmission network, in particular to a data service processing single board and a method.

Background technique

At present, data services are transmitted at the OTN (Optical Transport Network, Optical Transport Network)/WDM (WavelengthDivisionMultiplexing, wavelength division multiplexing) layer. The three-layer switching processor or switch resolves the destination address of the data service, and then decides which transmission path to use according to the destination address of the data service. After the path is determined, the data service is sent to the transmission line, and the determined path is followed to complete the transmission of the data service.

The problem brought about by this is that all OTN/WDM data services on the transmission network must be recalculated by the upper-layer router at the node after a period of transmission is completed before continuing to transmit on the next section of the line. If it is located in the center of the network, the workload of the router is very heavy. In fact, many services have fixed destinations, which can be reached through fixed paths and do not need to be allocated by the router in real time. Moreover, services of one level must be split into small-level services or merged into a larger-level service through routers, etc., which also increases the burden on routers.

Contents of the invention

The main purpose of the present invention is to provide a single board and method for data service processing, which avoids unnecessary occupation of upper-layer routers in fixed-path data service transmission, improves data service transmission efficiency, saves time, reduces costs, and can facilitate Realize the business splitting or merging of different levels of capacity, and realize flexible business configuration.

The technical solution adopted by the present invention to solve its technical problems is:

A data service processing single board, which includes: a data service processing module, a layer 2 switch processing module, a CPU, a plurality of input ports and a plurality of output ports, the CPU is connected to the data service processing module and the layer 2 switch processing module , the data service processing module is connected to multiple output ports, and the Layer 2 switch processing module is connected to the multiple input ports;

The Layer 2 switching processing module is configured to receive data services, generate configuration information of transmission paths for data services from input ports to output ports according to instructions of the CPU and network configuration, and send the data services to the Data service processing module;

The data service processing module is configured to receive the data service sent by the Layer 2 switch processing module, process the data service, and send the processed data service to a corresponding output port according to the configuration information.

Preferably, the Layer 2 switch processing module is further configured to write the configuration information into the structure table of the Layer 2 switch processing module, and determine whether the configuration in the structure table of the Layer 2 switch processing module needs to be reset information, if yes, reset it; if not, receive the data service transmitted from the input port, and judge the transmission path of the data service according to the configuration information.

Preferably, the layer-2 switching processing module is used to judge whether multiple input ports need to be integrated into one output port according to the configuration information, if yes, then integrate the data services input by other input ports; if not, then integrate the data services of the input ports Data traffic is forwarded directly to the output port.

Preferably, the layer-2 switching processing module is used to judge whether an input port needs to be split into multiple output ports according to the configuration information, and if yes, distribute the data service to each output port; if not, assign The data traffic of the input port is directly forwarded to the output port.

Preferably, the Layer 2 switch processing module is further configured to write the configuration information into the structure table of the Layer 2 switch processing module, and determine whether the configuration in the structure table of the Layer 2 switch processing module needs to be reset If yes, reset, if not, execute: the Layer 2 switching processing module receives the data service transmitted from the input port, and judges the transmission path of the data service according to the configuration information.

The present invention also provides a data service processing method, which is applied to the data service processing single board described in the above technical solution, which includes:

Generate configuration information according to the instructions of the CPU in the data service processing single board and network configuration, and write the configuration information into the structure table;

The data service transmitted from the input port is received, the transmission path of the data service is judged according to the configuration information, and the data service is allocated to the corresponding output port according to the transmission path.

Preferably, performing writing the configuration information into the structure table, after that, further includes:

Judging whether it is necessary to reset the configuration information in the structure table, if so, reset it, if not, then receive the data service transmitted from the input port, and judge the transmission path of the data service according to the configuration information.

Preferably, the determining the transmission path of the data service according to the configuration information, and distributing the data service to corresponding output ports according to the transmission path include:

According to the configuration information, it is judged whether multiple input ports need to be integrated into one output port, if yes, the data services input by other input ports are integrated; if not, the data services of the input ports are directly forwarded to the output port.

Preferably, the determining the transmission path of the data service according to the configuration information, and distributing the data service to corresponding output ports according to the transmission path include:

According to the configuration information, it is judged whether an input port needs to be split into multiple output ports, if yes, the data service is allocated to each output port; if not, the data service of the input port is directly forwarded to the output port.

The implementation of the technical solution of the present invention has the following beneficial effects: the data service processing single board and method provided by the present invention can change the configuration information at any time through the configuration of the two-layer switching processing module, and carry out path allocation and selection according to the configuration information. The allocation of business can be changed flexibly. Ports occupied by data services can be reasonably allocated according to the peak time of each data service, so that the same physical capacity can carry more data services. It can avoid unnecessary occupation of higher-level routers in the data service transmission of fixed paths, significantly reduce the number of routers and reduce costs, and can easily realize business splitting or merging of different levels of capacity to achieve flexible service configuration .

Description of drawings

FIG. 1 is a schematic structural diagram of a data service processing single board provided by an embodiment of the present invention;

FIG. 2 is a flowchart of a data service processing method provided by an embodiment of the present invention;

Fig. 3 is another flow chart of the data service processing method provided by the embodiment of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

An embodiment of the present invention provides a data service processing single board. As shown in FIG. 1 , the single board includes: a data service processing module, a Layer 2 switching processing module, a CPU, multiple input ports, and multiple output ports. One input port is connected to a client device to receive data service 1, data service 2, ... data service n of the client device; one output port is also connected to a client device; the CPU is connected to the data service processing module and the Layer 2 switching processing module As well as other functional modules, the data service processing module is connected to multiple output ports, and the Layer 2 switch processing module is connected to multiple input ports;

The layer 2 switching processing module is used to receive data services, generate configuration information of the transmission path of data services from input ports to output ports according to CPU instructions and network configuration, and send data services to the data service processing module; more specifically In the embodiment of the present invention, the layer-2 switch processing module is used to judge whether multiple input ports need to be integrated into one output port according to the configuration information, if yes, then integrate the data services input by other input ports; if not, then input The data traffic of the port is directly forwarded to the output port.

or,

The two-layer switch processing module is used to judge whether an input port needs to be split into multiple output ports according to the configuration information, and if so, distribute the data service to each output port; Data traffic is forwarded directly to the output port.

The data service processing module is used to receive the data service sent by the layer-2 switching processing module, process the data service, such as: repackaging format, overhead extraction, etc., and send the processed data service to the corresponding output according to the configuration information port.

In addition, in other embodiments, further, the Layer 2 switch processing module is further configured to write the configuration information into the structure table of the Layer 2 switch processing module, and determine whether it is necessary to reset the Layer 2 switch If yes, reset the configuration information in the structure table of the processing module, if otherwise, execute: the layer 2 switching processing module receives the data service transmitted from the input port, and judges the transmission path of the data service according to the configuration information .

In this single board, a layer 2 switch processing module (namely: a layer 2 switch chip) is added, and the selection of fixed path services can be realized through the added layer 2 switch processing module, so as to avoid the transmission of data services on the fixed path. Layer routers are unnecessarily occupied. The Layer 2 switching processing module is also controlled by the CPU controller. The control program for the Layer 2 switching processing module needs to be added to the single board program. Now many Layer 2 switching processing modules can implement the control program.

The processing of this board:

The data service is directly input to the single board and connected to the Layer 2 switching processing module. The path is judged according to the configuration information and forwarded to the corresponding port, and then split, reassembled and packaged for transmission to the line according to the traditional processing method. The process of getting the data service from the line is to take the data service from the line, process it through the data service processing module, send it to the layer-2 switching processing module, and then transmit it to the corresponding port for output to the client device.

In this embodiment, the data services of the single board and the client equipment are directly connected without going through a Layer 3 switching device or router, and all data services will pass through the single board. And by configuring the Layer 2 switch processing module, you can easily realize:

Data services from one input port to one output port to realize point-to-point exchange of data services;

The distribution of data services from one input port to multiple output ports realizes the splitting of large-capacity data services to several small-level data services, and realizes point-to-multipoint switching of data services;

The distribution of multiple input port data services to one output port realizes the integration of several small-level capacity data services into one large-level data service, and realizes multi-point-to-point switching of data services.

The data service processing single board provided by this embodiment can change the configuration information at any time through the configuration of the layer-2 switching processing module, and perform path allocation and selection according to the configuration information, and the allocation of data services can be flexibly changed. Ports occupied by data services can be reasonably allocated according to the peak time of each data service, so that the same physical capacity can carry more data services. It can avoid unnecessary occupation of higher-level routers, significantly reduce the number of routers, and reduce costs. It can also easily realize the splitting or merging of services with different levels of capacity, and realize flexible service configuration.

The present invention also provides a data service processing method, which is applied to the data service processing board provided in the above embodiment, as shown in FIG. 2 , the method includes steps:

S210. Generate configuration information according to the instructions of the CPU in the data service processing single board and the network configuration, and write the configuration information into the structure table;

In this step, the board is powered on first, and then the Layer 2 switching processing module generates configuration information according to the CPU instruction and network configuration, and writes the configuration information into the structure table of the Layer 2 switching processing module. It will take up a lot of CPU resources. If the processing power of the CPU is not enough, problems such as packet loss will occur. Therefore, a CPU chip with fast processing speed should be used. In addition, the time of this process is about seconds, and will not occupy the CPU for a long time. After initialization, if the network configuration changes, the configuration operation can be re-executed, thereby enabling new data service scheduling, and the time for the CPU to re-execute the configuration is very short, basically at the millisecond level. After the Layer 2 switch processing module is configured, the forwarding of the data service is automatically completed by the hardware, and the CPU will not be occupied, so it will not have a great impact on the software operation of the board.

S220. Receive the data service transmitted from the input port, judge the transmission path of the data service according to the configuration information, and distribute the data service to the corresponding output port according to the transmission path. That is: pack data, frame, connect to the line, and reach the destination after line transmission.

Specifically, it includes judging whether multiple input ports need to be integrated according to the configuration information (for example, the data services of three input ports are combined into one data service, and the format of the data service needs to be adjusted during the combination) to one output port, If yes, integrate the data services input by other input ports; if not, forward the data services of the input port directly to the output port.

or,

According to the configuration information, it is judged whether an input port needs to be split (for example, the data service of the main channel is separated into the data service of three branches. In the separation, processing such as format adjustment is required, which is suitable for large-capacity data services to Small-capacity data service conversion (relative to the above-mentioned integration) to multiple output ports, if yes, then distribute the data service to each output port; if not, then directly forward the data service of the input port to the output port.

In other embodiments, further, as shown in FIG. 3, after step S210 is executed, step S211 is also included, determining whether the configuration information in the structure table needs to be reset, and if so, reset; if If not, receive the data service transmitted from the input port, and judge the transmission path of the data service according to the configuration information.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Inside.

Claims (6)

1. A single board for data service processing, the single board includes a data service processing module, a CPU, a plurality of input ports and a plurality of output ports, the CPU is connected to the data service processing module, and the data service processing module is connected to multiple The two output ports are connected, and it is characterized in that it also includes a layer 2 switch processing module, the CPU is connected to the layer 2 switch processing module, and the layer 2 switch processing module is connected to the plurality of input ports; The Layer 2 switching processing module is configured to receive data services, generate configuration information of transmission paths for data services from input ports to output ports according to instructions of the CPU and network configuration, and send the data services to the Data service processing module; The data service processing module is configured to receive the data service sent by the Layer 2 switch processing module, process the data service, and send the processed data service to a corresponding output port according to the configuration information; The Layer 2 switch processing module is further configured to write the configuration information into the structure table of the Layer 2 switch processing module, and determine whether the configuration information in the structure table of the Layer 2 switch processing module needs to be reset, if If yes, reset; if no, receive the data service transmitted from the input port, and judge the transmission path of the data service according to the configuration information. 2. The data service processing single board according to claim 1, wherein the layer-2 switch processing module is used to judge whether multiple input ports need to be integrated into one output port according to the configuration information, and if so, integrate other input ports The data traffic input by the port; if not, the data traffic of the input port is directly forwarded to the output port. 3. The data service processing single board as claimed in claim 2, wherein the two-layer switching processing module is used to judge whether an input port needs to be split into multiple output ports according to the configuration information, and if so, the The data traffic is allocated to each output port; if not, the data traffic of the input port is directly forwarded to the output port. 4. A method for processing data services, comprising: Generate configuration information according to the instructions of the CPU in the data service processing single board and network configuration, and write the configuration information into the structure table; receiving the data service transmitted from the input port, judging the transmission path of the data service according to the configuration information, and distributing the data service to the corresponding output port according to the transmission path; After executing the writing of the configuration information into the structure table, it also includes: Judging whether the configuration information in the structure table needs to be reset, if so, reset; if not, receiving the data service transmitted from the input port, and judging the transmission path of the data service according to the configuration information. 5. The method according to claim 4, wherein the determining the transmission path of the data service according to the configuration information, and distributing the data service to the corresponding output port according to the transmission path comprises: According to the configuration information, it is judged whether multiple input ports need to be integrated into one output port, if yes, the data services input by other input ports are integrated; if not, the data services of the input ports are directly forwarded to the output port. 6. The method according to claim 5, wherein the determining the transmission path of the data service according to the configuration information, and distributing the data service to the corresponding output port according to the transmission path comprises: According to the configuration information, it is judged whether an input port needs to be split into multiple output ports, if yes, the data service is allocated to each output port; if not, the data service of the input port is directly forwarded to the output port.