WO2013056569A1

WO2013056569A1 - Method and device for communication between boards

Info

Publication number: WO2013056569A1
Application number: PCT/CN2012/077678
Authority: WO
Inventors: 刘亮
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-10-21
Filing date: 2012-06-27
Publication date: 2013-04-25
Also published as: CN103067430A

Abstract

Disclosed are a method and a device for communication between boards. The method comprises: a main control board and a service board selecting an optimal channel in a negotiation communication manner and performing communication by using the selected optimal channel. Through the method and the device of the present invention, a communication manner between the main control board and the service board can be decided according to an actual environment configuration condition, thereby improving the flexibility of the system application and adapting to various actual environment requirements.

Description

Method and communication device for communication between boards

The present invention relates to the field of communications, and in particular, to a method and communication device for inter-board communication. Background technique

The communication device is usually composed of a main control board and a plurality of service boards. The service boards are connected to the main control board and are registered on the main control board during startup. The main control board and the service board are connected through communication channels. The information is exchanged. The main control board sends a command to the service board. The service board responds to the main control board or reports status information.

In actual use, there is such a problem: Before the main control board and the service board only make one communication channel to meet the application requirements, as the service increases, a new communication channel needs to be added to meet the new service requirements. The communication channel supports different communication methods. Therefore, there are several types of cooperation in the actual application: the new main control board and the new service board, the new main control board and the old business board, the old main control board, and the new business board. How to effectively manage multiple channels without affecting the compatibility of new and old versions without affecting other functions of the device is a problem that needs to be solved. Summary of the invention

The technical problem to be solved by the present invention is to provide a method and a communication device for communication between boards, so that the device can meet different practical application scenarios.

According to an aspect of the present invention, the present invention provides a method for inter-board communication. The method includes: the main control board and the service board select an optimal channel by using a negotiated communication mode, and perform communication by using the selected optimal channel.

Preferably, the main control board and the service board select an optimal channel by using a negotiated communication manner, including the following steps: The main control board initiates the communication mode negotiation on the service board. The service board supports the communication mode supported by the service board. The main control board selects the optimal channel according to the communication mode supported by the service board and responds to the service board. The board's response selects the optimal channel.

According to another aspect of the present invention, the present invention further provides a communication device, which includes a main control board and at least one service board, and further includes: the main control board and the service board select the most through negotiation communication A channel negotiation module of the excellent channel, and a communication module for communicating using the optimal channel.

Preferably, the communication module includes a first communication module located on the main control board and a second communication module located on the service board; the channel negotiation module includes a sending unit, a response unit, and a first selection unit located on the main control board, and is located in the service a reporting unit and a second selecting unit on the board, where: the sending unit is configured to initiate a communication mode negotiation command to the service board; the first selecting unit is configured to select an optimal channel according to the communication mode supported by the service board; The unit is used to answer the service board;

The reporting unit is configured to report the communication mode supported by the service board, and the second selection unit is configured to select an optimal channel according to the response of the response unit.

According to the embodiment of the present invention, the communication mode between the main control board and the service board can be determined according to the actual environment configuration, thereby improving the flexibility of the system application and adapting to various actual environment requirements. DRAWINGS

1 is a flowchart of a method for communication between boards according to Embodiment 1 of the present invention;

2 is a flowchart of a method for communicating between a new main control board and a new service board according to Embodiment 3 of the present invention;

FIG. 3 is a schematic structural diagram of a communication device according to Embodiment 4 of the present invention. detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments in order to make the present invention. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The core idea of the present invention is that the main control board and the service board negotiate a communication mode, and the communication is performed by using an optimal channel.

Embodiment 1

FIG. 1 is a flowchart of a method for communication between boards according to the embodiment. In the figure, the main control board initiates a communication mode negotiation with the service board.

The main control board sends a communication mode negotiation command to the service board to initiate communication mode negotiation. The negotiation message is fixed to the original communication channel.

Preferably, the main control board sends a negotiation command at a fixed time interval, and initiates negotiation at a time.

Step 102: The service board supports the communication mode supported by the service board;

After receiving the communication mode negotiation command, the service board reports its supported communication mode, indicating that it supports the new communication mode or only supports the original communication mode. The negotiation packet is also fixed to the original communication channel.

Step 103: The main control board selects an optimal channel according to the communication mode reported on the service card. The main control board selects the optimal communication mode according to the communication mode reported on the service card and the communication mode supported by the service board: If the board supports multiple communication modes, the optimal channel is selected as the communication channel, and the communication channel currently used is determined to be the optimal channel. If not, the communication mode with the service board is switched to the optimal channel.

The optimal channel is a communication channel with a wide bandwidth and a high rate. For example, the main control board and the service board support the two communication modes of the HDLC communication mode and the UDP communication mode, and the communication channel supporting the UDP communication mode is For the optimal channel, select the communication channel that supports UDP communication as the optimal channel. Step 104: The main control board responds to the service board.

After the main control board selects the optimal channel, the communication mode supported by the optimal channel or its own is answered to the service board. The negotiation packet is also fixed to the original communication channel.

Step 105: The service board selects an optimal channel according to the response of the main control board.

When the main control board answers the optimal channel, it is judged whether the currently used communication mode is the optimal communication mode. If not, the communication channel with the main control board is switched to the optimal channel.

If the main control board and the service board support the two communication modes, the service board selects the optimal channel as the communication mode with the main control board. Then, it is further determined whether the currently used communication mode is the optimal communication mode, and if not, the communication channel with the main control board is switched to the optimal channel.

Steps 101 to 105 above are the steps of negotiating the communication channel between the main control board and the service board. The main control board and the service board select the optimal channel by negotiation.

Step 106: The main control board and the service board communicate using the optimal channel.

Of course, in this embodiment, when the new main control board cooperates with the new service board, the communication channel is negotiated in the process of step 101 to step 105, and when the new main control board cooperates with the old service board. The service board can also report the communication mode that it supports. After the step 101 is executed, the main control board initiates the communication mode negotiation with the service board. The two parties use the default default communication mode to negotiate the communication channel. When the board is configured with a new service board, the old main control board does not initiate a communication mode negotiation command to the service board. The two parties use the default default communication mode to negotiate the communication channel.

According to the embodiment of the present invention, the communication mode between the main control board and the service board can be determined according to the actual environment configuration, thereby improving the flexibility of the system application and adapting to various actual environment requirements.

Embodiment 2

In this embodiment, an SDH (Synchronous Digital Hierarchy) device is used as an example. The communication channel between SDH device boards can usually be HDLC (High level Data). Link Control, Advanced Data Link Control) channel and UDP (User Data Protocol) channel, the HDLC channel supports HDLC communication mode, the UDP channel supports UDP communication mode, and RUDP (Reliable User Data) Protocol, User Datagram Protocol) channel, the RUDP channel supports RUDP communication mode. It is assumed that the SDH device board uses only the HDLC channel for communication. Since the device adds the ASON (Automatically Switched Optical Network) function, communication through the HDLC channel alone cannot meet the communication requirements. The control board adds UDP channels. Compared with HDLC channels, UDP channels have wide bandwidth and high speed, which can better meet bandwidth and speed requirements. Therefore, in the actual application scenario, the new main control board cooperates with the new service board, and the new main control board and the old service board cooperate with each other. In this embodiment, the main control board and the service board negotiate the communication mode. Selecting the optimal channel separately includes the following steps: Step 101: The main control board periodically sends a communication mode negotiation command to the service board to initiate communication mode negotiation.

Step 102: After receiving the communication mode negotiation command, the service board reports the communication mode supported by the service board, indicating that it supports the UDP communication mode (new service board) or only supports the original HDLC communication mode (the old service board);

In the step 103', the main control board selects the optimal channel according to the communication mode supported by the service board: When the main control board and the service board support the UDP communication mode, the UDP channel is selected as the communication channel, and the current channel is further determined. Whether the channel used by the service board is a UDP channel. If not, the communication channel with the service board is switched to the UDP channel. If at least one of the main control board and the service board does not support the UDP communication mode, Select HDLC channel, then you do not need to switch channels;

Step 104 ′, the main control board responds to the supported communication mode or the optimal channel to the service board; Step 105 ′, the service board selects the optimal channel according to the response of the main control board:

When the main control board responds to the supported communication mode, the service board is on the main control board and itself. When the UDP communication mode is supported, UDP is selected as the communication mode with the main control board, and it is further determined whether the currently used communication mode is the UDP communication mode. If not, the communication mode with the main control board is switched to the UDP communication mode. In the case that the main control board and at least one of them do not support the UDP communication mode, the HDLC communication mode is still selected, and there is no need to switch the communication channel.

When the main control board answers the optimal channel, it directly determines whether the currently used communication mode is the optimal channel (UDP channel or HDLC channel). If not, then switch the communication mode with the main control board to the optimal channel. Otherwise you do not need to switch the communication channel.

Preferably, all the foregoing negotiation messages are fixed to the HDLC channel.

After the main control board and the service board select the optimal channel through negotiation, the main control board and the service board use the optimal channel to communicate.

Similarly, in this embodiment, when the new main control board is configured with the old service board, the service board may not report the communication mode supported by the service board. After the step 10 is executed, the main control board is sent to the service board. After sending the communication mode negotiation command, both parties use the default default communication mode.

The method for inter-board communication of the SDH device in this embodiment satisfies the application requirements of the SDH device to meet different environment configurations.

Embodiment 3

In order to better illustrate the problem of the communication mode switching between the main control board and the service board, as shown in FIG. 2 is a flow chart of a method for negotiating between the new main control board and the new service board according to the embodiment, including The following steps:

Step 201: The main control board initiates a communication mode negotiation command to the service board.

Step 202: The service board reports the new communication mode supported by the service board.

Step 203: The main control board determines whether the communication channel currently used by the service board is a communication channel that supports the new communication mode. If not, step 204 is performed. If yes, step 205 is performed; Step 204, the main control board will communicate The channel is switched to the communication channel that supports the new communication mode. Step 205: The main control board sends the communication mode or the optimal channel to the service board. Step 206: The service board determines whether the currently used communication channel is a communication channel that supports the new communication mode. If not, step 207 is performed, and if yes, the negotiation process ends;

Step 207: The service board switches the communication channel to a communication channel that supports the new communication mode. Through the above design steps, the communication mode between the main control board and the service board is negotiated, and the optimal channel is selected for communication, thereby satisfying the application requirements of the SDH device to meet different environmental configurations.

Embodiment 4

FIG. 3 is a schematic structural diagram of a communication device according to Embodiment 4, where the communication device includes a main control board 31 and at least one service board 32, and further includes a negotiation between the main control board 31 and the service board 32. A channel negotiation module 33 of the communication mode, and a communication module 34 for communicating using the optimal channel.

The communication module 34 includes a first communication module 310 located on the main control board 31 and a second communication module 320 located on the service board 32;

The channel negotiation module 33 includes: a sending unit 311, a first selecting unit 312, and a answering module 313 on the main control board 31, and a reporting unit 321 and a second selecting unit 322 on the service board 32, where:

The sending unit 311 is configured to initiate a communication mode negotiation command to the service board 32. The first selection unit 312 is configured to select an optimal channel according to the communication mode supported by the service board 32. The response unit 313 is configured to respond to the service board 32.

The reporting unit 321 is configured to report the communication mode supported by the service board 32, and the second selection unit 322 is configured to select an optimal channel according to the response of the response unit 313.

Preferably, the first selecting unit 312 further includes:

a first selection subunit, configured to select an optimal channel according to the communication manner reported by the reporting unit 321;

a first determining subunit, configured to determine a communication channel currently used by the second communication module 320 Whether it is the optimal channel;

a first switching subunit, configured to: when the communication channel currently used by the second communication module 320 is not the optimal channel, switch the communication channel with the second communication module 320 to the optimal channel; preferably, the response unit 313 is specific It is used to: send the communication mode or the optimal channel supported by the main control board 31 to the service board 32. Preferably, the second selecting unit 322 further includes:

a second selection subunit, configured to select an optimal channel according to a communication mode or an optimal channel supported by the main control board 31 that the response unit 313 answers;

a second determining subunit, configured to determine whether the communication channel currently used by the first communication module 310 is the optimal channel;

The second switching subunit is configured to switch the communication channel with the first communication module 310 to the optimal channel when it is determined that the communication channel with the first communication module 310 is not the optimal channel.

With the communication device of this embodiment, the application requirements of the communication device satisfying different environment configurations are satisfied.

The method for inter-board communication provided by the present invention is also applicable to a Wavelength Division Multiplexing (WDM) device.

The above description shows and describes a preferred embodiment of the present invention, but as described above, it should be understood that the present invention is not limited to the forms disclosed herein, and should not be construed as Other combinations, modifications, and environments are possible and can be modified by the teachings or related art or knowledge within the scope of the inventive concept described herein. All changes and modifications made by those skilled in the art are intended to be within the scope of the appended claims.

Claims

Claim

A method for communication between boards, characterized in that the method comprises:

The main control board and the service board select the optimal channel through negotiation and communication.

Communicate using the selected optimal channel.

2. The method according to claim 1, wherein the main control board and the service board select an optimal channel by means of a negotiated communication manner, which is:

The main control board initiates a communication mode negotiation to the service board.

The service board reports the communication mode supported by itself;

The main control board selects an optimal channel according to the communication mode supported by the service board, and responds to the service board;

The service board selects an optimal channel according to the response of the main control board.

The method according to claim 2, wherein the main control board selects an optimal channel according to a communication mode supported by the service board, which is:

When the main control board and the service board support multiple communication modes, selecting an optimal channel from the multiple communication modes;

When it is determined that the currently used communication channel is not the optimal channel, the currently used channel is switched to the optimal channel.

4. The method according to claim 2, wherein the main control board responds to the service board, and is:

The main control board sends the communication mode supported by the main control board or the optimal channel to the service board.

The method according to claim 2, wherein the service board selects an optimal channel according to the response of the main control board, which is:

When the main control board responds to the optimal channel, and the communication channel currently used by the service board is not the optimal channel, the currently used communication channel is switched to an optimal channel; or,

When the main control board responds to the communication mode supported by the main control board, and the service board determines that the communication mode is supported by itself, an optimal channel is selected from the communication mode;

When it is determined that the currently used communication channel is not the optimal channel, the currently used communication channel is switched to the optimal channel.

6. Method according to any one of claims 1 to 5, characterized in that the method is suitable for SDH equipment.

A communication device, comprising: a main control board and at least one service board, wherein the communication device further comprises:

A channel negotiation module for selecting an optimal channel by using the negotiated communication mode between the main control board and the service board, and a communication module for performing communication by using the selected optimal channel.

The communication device according to claim 7, wherein the communication module comprises a first communication module located on the main control board and a second communication module located on the service board; the channel negotiation module The sending unit, the answering unit, and the first selecting unit, and the reporting unit and the second selecting unit, are located on the main control board, and the sending unit is configured to send the service The board initiates a communication mode negotiation command; the first selection unit is configured to select an optimal channel according to the communication mode supported by the service board; and the response unit is configured to respond to the service board;

The reporting unit is configured to report a communication mode supported by the service board, and the second selection unit is configured to select an optimal channel according to the response of the response unit.

The communication device according to claim 8, wherein the first selection unit comprises:

a first selection subunit, configured to select an optimal channel according to the communication manner reported by the reporting unit;

a first determining subunit, configured to determine whether the currently used channel is the optimal channel; The first switching subunit is configured to switch the currently used communication channel to an optimal channel when it is determined that the currently used channel is not the optimal channel.

The communication device according to claim 8, wherein the response unit is configured to: send the communication mode supported by the main control board or the optimal channel to the service board.

The communication device according to claim 8, wherein the second selection unit comprises:

a second selection subunit, configured to select an optimal channel according to a communication mode or an optimal channel supported by the main control board that is answered by the response unit;

a second determining subunit, configured to determine whether the currently used communication channel is the optimal channel; and a second switching subunit, configured to: when it is determined that the currently used communication channel is not the optimal channel, The communication channel is switched to the optimal channel.

The communication device according to any one of claims 7 to 11, wherein the communication device is an SDH device.