WO2015154433A1

WO2015154433A1 - Line card management method and system

Info

Publication number: WO2015154433A1
Application number: PCT/CN2014/089447
Authority: WO
Inventors: 赵刚
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-08-15
Filing date: 2014-10-24
Publication date: 2015-10-15
Also published as: CN105337757A

Abstract

The present invention relates to a line card management method and system, the method comprising: a master control single board establishes a communication connection with at least one line card through an Ethernet interface and manages, on the basis of the Ethernet interface, the at least one line card through inter-board communication packets. The present invention solves the line card management problem of a line card without a CPU, and can reduce hardware costs of the line card at the same time. In addition, in this solution, the interaction of inter-board communication packets is completed through an Ethernet interface, the Ethernet interface being in a full-duplex mode, so that the problem of serious conflict on an I2C bus is solved.

Description

Line card management method and system

Technical field

The present invention relates to the field of communications technologies, and in particular, to a CPU-free line card management method and system.

Background technique

In the communication products, especially in the communication products of SDH (Synchronous Digital Hierarchy), PTN (Packet Transport Network), the product equipment system structure usually adopts the star system architecture, that is, the star system. The central node is the main control unit, and the other nodes are the service line card units. In a production system, it is often necessary to query the performance of various key components of each node (including the master unit, line card unit), alarms, and configuration of devices in the node. Generally, the I2C interface between the boards is used to complete the communication between the boards. That is, the network management server sends the query configuration command to the main control board. After the main control board processes the board, the main control board passes the I2C interface. It is sent to the line card, and then processed by the CPU (Central Processing Unit) chip of the line card, and converted into a line card operation.

In addition, the inter-board I2C interface usually uses IPMBL and I2C as the bus mode, and its maximum rate is 400 kbps. When the line card needs to be configured, the line card is in the slave mode; when the alarm is reported, the line card is in the master mode. When the online card supports both the master and slave modes, when multiple line cards are working at the same time, the conflict on the I2C bus is serious, the real-time alarm becomes worse, and packet loss may occur.

Summary of the invention

The embodiment of the invention provides a line card management method and system, which can reduce the hardware cost of the line card to at least solve the problem of serious conflict on the I2C bus in the related art.

In order to achieve the above object, the present invention provides a line card management method, including:

The main control board establishes a communication connection with at least one line card through an Ethernet interface;

The master control board manages the at least one line card by using an inter-board communication message based on the Ethernet interface.

Preferably, the step of managing, by the master control board, the at least one line card by using an inter-board communication message based on the Ethernet interface includes:

After the line card agent is started, the master card encapsulates the command information with the destination MAC address and the source MAC address in the first inter-board communication message when receiving the command from the upper-layer application.

The main control board sends the first inter-board communication message to the specified line card.

Preferably, the step of managing, by the master control board, the at least one line card by using an inter-board communication message is further:

Receiving, by the line card, the first inter-board communication message sent by the main control board;

The line card parses the first inter-board communication message, and extracts a message request type;

The line card generates a corresponding request signal according to the message request type;

The line card converts the corresponding request signal into a corresponding bus operation.

Preferably, the step of converting the corresponding request signal into a corresponding bus operation by the line card comprises:

When the request signal is a configuration command, the line card converts the request signal into a write command of the bus;

When the request signal is a query command, the line card converts the request signal into a read command of the bus, and encapsulates the information obtained by the read command into a second inter-board communication message and returns the information to the main control board.

Receiving, by the main control board, a second inter-board communication message sent by the line card;

The master control board extracts valid data from the second inter-board communication message;

The master control board encapsulates the extracted valid data into an S-port message and reports it to the upper-layer application.

After the online card is powered on, the line card reports the packet type message to the main control board.

The master board determines whether the board type message reported by the line card conforms to a pre-configured format, and if so, starts the line card agent.

The embodiment of the present invention further provides a line card management system, including: a main control board and at least one line card; wherein:

The master control board is configured to establish a communication connection with the at least one line card through an Ethernet interface; and manage the at least one line card by using an inter-board communication message based on the Ethernet interface;

The at least one line card is configured to interact with the main control board through the inter-board communication message based on the Ethernet interface.

Preferably, the main control board is further configured to, after the line card agent is started, encapsulate the issued command information, together with the destination MAC address and the source MAC address, into the first inter-board communication, when receiving the command issued by the upper layer application. In the message, the first inter-board communication message is sent to the specified line card.

Preferably, the line card is further configured to receive the first inter-board communication message sent by the main control board; parse the first inter-board communication message, and extract a message request type; Determining the message request type, generating a corresponding request signal; converting the corresponding request signal into a corresponding bus operation.

Preferably, the line card is further configured to convert the request signal into a write command of the bus when the request signal is a configuration command; and convert the request signal into a read command of the bus when the request signal is a query command The information obtained by the execution of the read command is encapsulated into a second inter-board communication message and returned to the main control board.

Preferably, the main control board is further configured to receive a second inter-board communication message sent by the line card; extract valid data from the second inter-board communication message; and encapsulate the extracted valid data into S-port packet is reported to the upper-layer application.

Preferably, the line card is further configured to report a board type message to the main control board after being powered on;

The main control board is further configured to determine whether the board type message reported by the line card conforms to a pre-configured format, and if so, the line card agent is started.

The method and system for managing a line card according to the embodiment of the present invention, the main control board establishes a communication connection with the line card through the Ethernet interface, and manages the line card through the inter-board communication message based on the Ethernet interface, thereby solving The management problem of no CPU line card on the line card can reduce the hardware cost of the line card. In addition, in this solution, the communication between the boards is completed through the Ethernet interface, and the Ethernet interface is full-duplex. A serious conflict on the I2C bus.

DRAWINGS

1 is a schematic flow chart of an embodiment of a line card management method according to the present invention;

2 is a schematic flowchart of managing the at least one line card by using an inter-board communication message based on the Ethernet interface in the embodiment of the line card management method of the present invention;

3 is another schematic flowchart of managing the at least one line card by using an inter-board communication message based on the Ethernet interface in the embodiment of the line card management method of the present invention;

4 is a schematic flowchart of still another process of managing, by the main control board, the at least one line card by using an inter-board communication message according to the Ethernet interface in the embodiment of the line card management method of the present invention;

FIG. 5 is a schematic diagram of still another flow chart of managing, by the main control board, the at least one line card through the inter-board communication message according to the Ethernet interface in the embodiment of the line card management method of the present invention;

6 is a schematic structural diagram of an embodiment of a line card management system according to the present invention;

7 is a schematic diagram of a specific architecture of an embodiment of a line card management system according to the present invention;

FIG. 8 is a schematic diagram showing the internal structure of a line card control center unit of a line card in the embodiment of the line card management system of the present invention.

In order to make the technical solutions of the present invention clearer and clearer, the following will be further described in detail with reference to the accompanying drawings.

detailed description

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The solution of the embodiment of the present invention is mainly: the main control board establishes a communication connection with the line card through the Ethernet interface, and manages the line card through the inter-board communication message based on the Ethernet interface, thereby solving the problem on the line card. The management problem of the CPU line card can reduce the hardware cost of the line card. In addition, in this solution, the communication between the boards is completed through the Ethernet interface, and the Ethernet interface is in full-duplex mode, which solves the serious conflict on the I2C bus. problem.

As shown in FIG. 1 , an embodiment of the present invention provides a line card management method, including:

Step S101: The main control board establishes a communication connection with at least one line card through an Ethernet interface.

In this embodiment, a cable card agent is set on the main control board.

After the online card agent is started, the main control board receives the command from the upper-layer application to implement operation management such as performance monitoring, alarm, and configuration of the line card.

The start of the line card agent can be implemented by the line card timing report type message. The line card periodically reports the packet type message to the main control board. The main control board determines whether the format is the same as the pre-defined format type according to the received board type message. If the line card is consistent, the line card agent is started. Therefore, the main control board of the Ethernet interface establishes a communication connection with the line card.

After the online card agent is started, if the board type message received by the line card is not received within the specified time range, the line card agent is stopped.

Step S102: The main control board manages the at least one line card by using an inter-board communication message based on the Ethernet interface.

Specifically, as shown in FIG. 2, as an implementation manner, in step S102, the main control board manages the at least one line card by using an inter-board communication message based on the Ethernet interface, and may include:

Step S1021: After the line card agent is started, the main control board encapsulates the issued command information, together with the destination MAC address and the source MAC address, into the first inter-board communication message, when receiving the command sent by the upper-layer application;

The main control board responds to the command issued by the upper application through the line card agent. When receiving the command from the upper-layer application, the master control board encapsulates the issued command information into the payload of the first inter-board communication packet, and adds the destination MAC address and source MAC address to the inter-board communication packet. In the text. Step S1022: The main control board sends the first inter-board communication message to the specified line card.

Then, the main control board sends the first inter-board communication message to the line card specified by the destination MAC address.

As shown in FIG. 3, in another embodiment, based on the foregoing embodiment shown in FIG. 2, in step S102, the main control board is configured to use the inter-board communication message according to the Ethernet interface. In the management of the at least one line card, after the step S1022, the method may further include:

Step S1023, the line card receives the first inter-board communication message sent by the main control board;

Step S1024, the line card parses the first inter-board communication message, and extracts a message request type.

Step S1025: The line card generates a corresponding request signal according to the message request type.

Step S1026, the line card converts the corresponding request signal into a corresponding bus operation.

The line card receives the first inter-board communication message sent by the main control board, parses the first inter-board communication message, and extracts a message request type; and generates according to the message request type. Corresponding request signal; converting the corresponding request signal into a corresponding bus operation, and the bus operation is used to cooperate or query the line card information.

The step of converting the corresponding request signal into a corresponding bus operation by the line card includes:

Specifically, the type of the line card parsing request command, when the request command is a configuration type, convert the configuration command and the valid data into a write enable signal, an address, and a data of the bus; when the request command is a query type, the query command and The valid data is converted into the read enable signal and address of the bus, waiting for the bus to read back the data; and then the return data is transferred to the main control board.

As shown in FIG. 4, in another embodiment, based on the foregoing embodiment shown in FIG. 3, in step S102, the main control board is configured to use the inter-board communication message according to the Ethernet interface. In the management of the at least one line card, after the step S1026, the method may further include:

Step S1027: The main control board receives the second inter-board communication message sent by the line card.

Step S1028: The master control board extracts valid data from the second inter-board communication message.

In step S1029, the main control board encapsulates the extracted valid data into an S-port message and reports it to the upper-layer application.

Specifically, on the main control board side, after receiving the second inter-board communication packet sent by the line card, the main control board extracts the destination MAC address, the VLAN value, and the valid data content from the packet; The MAC address and the VLAN value are used to determine whether the packet is an inter-board communication packet. When the packet is an inter-board communication packet, the valid data is encapsulated into an internal S-port packet. Then, the internal S-port packet is reported to the upper-layer application at a regular time.

As shown in FIG. 5, in another embodiment, based on the foregoing embodiment shown in FIG. 4, in step S102, the main control board is configured to use the inter-board communication message according to the Ethernet interface. In the management of the at least one line card, before the step S1021, the method may further include:

Step S1019: After the online card is powered on, the line card reports the packet type message to the main control board.

In step S1020, the main control board determines whether the board type message reported by the line card conforms to a pre-configured format, and if so, starts the line card agent.

The start of the line card agent is implemented by the line card timing report board type message. After the online card is powered on, the line card periodically reports the packet type message to the main control board. The main control board determines whether the format is the same as the pre-defined format type according to the received board type packet. Line card agent.

In this embodiment, the main control board establishes a communication connection with the line card through the Ethernet interface, and manages the line card through the inter-board communication message based on the Ethernet interface, thereby solving the problem that the line card has no CPU line card. The management problem can also reduce the hardware cost of the line card. In addition, in this solution, the communication between the boards is completed through the Ethernet interface, and the Ethernet interface is a full-duplex mode, which solves the serious conflict problem on the I2C bus.

As shown in FIG. 6, a preferred embodiment of the present invention provides a line card management system, including: a main control board 201 and at least one line card 202; wherein:

The main control board 201 is configured to establish a communication connection with the at least one line card 202 through an Ethernet interface; and manage the at least one line card 202 by using an inter-board communication message based on the Ethernet interface. ;

The at least one line card 202 is configured to interact with the main control board 201 through the inter-board communication message based on the Ethernet interface.

Further, the main control board 201 is further configured to, after the line card 202 agent is started, the command information is sent to the first board together with the destination MAC address and the source MAC address when the command of the upper layer application is received. In the communication message, the first inter-board communication message is sent to the designated line card 202.

Further, the line card 202 is further configured to receive the first inter-board communication message sent by the main control board 201; parse the first inter-board communication message, and extract a message request type; The message request type generates a corresponding request signal; and converts the corresponding request signal into a corresponding bus operation.

The line card 202 is further configured to convert the request signal into a write command of the bus when the request signal is a configuration command; when the request signal is a query command, convert the request signal into a read command of the bus, and The information obtained by the read command is encapsulated into a second inter-board communication message and returned to the main control board 201.

The main control board 201 is further configured to receive the second inter-board communication message sent by the line card 202; extract valid data from the second inter-board communication message; and encapsulate the extracted valid data into the S port. The message is reported to the upper application.

The line card 202 is further configured to report a board type message to the main control board 201 after being powered on;

The main control board 201 is further configured to determine whether the board type message reported by the line card 202 conforms to a pre-configured format, and if so, activate the line card 202 agent.

After the online card agent is started, if the board type message reported by the line card 202 is not received in the specified time range, the line card agent is stopped.

In this embodiment, the management system of the CPU line card 202 is not provided. The main control board 201 and the line card 202 establish a communication connection through the Ethernet interface, and manage the line card 202 through the inter-board communication message based on the Ethernet interface, thereby solving the problem. The management problem of the CPU card 202 is not supported on the line card 202, and the hardware cost of the line card 202 can be reduced. In addition, in this solution, the communication between the boards is completed through the Ethernet interface, and the Ethernet interface is in full duplex mode. Solve the serious conflict problem on the I2C bus.

More specifically, in practical applications, corresponding units can be set on the main control board and the line card to complete the corresponding functions. The details are as follows:

As shown in Figure 7, on the main control board side, set the cable card agent unit and the cross unit, where:

The line card agent unit mainly completes the initiation and reporting of inter-board communication messages.

The cross unit completes the line card agent unit to initiate the exchange of inter-board communication messages to the line card transmission; at the same time, the inter-board communication message sent by the line card is forwarded to the line card agent unit.

On the line card side, set the cable card control center unit and interface conversion unit, where:

The line card control center unit completes the response and response of the inter-board communication message. In the receiving direction, receiving inter-board communication messages, parsing the message content, extracting valid request information, and converting the request information in the message into a request signal; and, at the same time, encapsulating the information of the request signal response to the board in the sending direction The communication message is sent to the master control board.

The interface conversion unit is configured to convert the request signal of the line card control center unit into a bus operation.

The solution of this embodiment is elaborated based on the above unit:

Step 1: The main control board line card agent unit responds to the upper layer application command, and then initiates the inter-board communication message of the management line card; at the same time, receives the inter-board communication message that the line card answers, and then reports to the upper layer application processing.

The specific process is as follows:

a) responding to the upper application to issue a command;

b) converting the issued command into an inter-board communication message;

c) Send the inter-board communication message to the cross unit.

d) At the same time, the receiving cross unit forwards the inter-board communication message to the line card agent unit.

e) Parsing the received inter-board communication message, and then reporting it to the upper layer application processing.

The proxy line card program receives the inter-board communication message outputted by the cross-unit, and after receiving the inter-board communication message, extracts the destination MAC address, the VLAN value, and the valid data content from the packet; and then according to the destination MAC address and the VLAN value. The interpreter is an inter-board communication message. When the inter-board communication message is received, the valid data is encapsulated into an internal S-port message, and then the internal S-port message is reported to the upper-layer application at a regular time.

Step 2: The interworking unit of the main control board and the line card forwards the inter-board communication message of the main control board and the line card.

The inter-board communication packet initiated by the line card agent is forwarded to the destination line card. The inter-board communication packet sent by the line card is forwarded to the line card agent unit of the main control board.

The cross unit receives the inter-board communication message outputted in step 1, and finds the destination line card according to the destination MAC address of the inter-board communication message; and then forwards the inter-board communication message to the destination line card port for transmission. At the same time, the inter-board communication message sent by each line card is received, and then the message is transmitted to the line card agent unit of step 1.

Step 3: The line card control center unit of the line card receives the inter-board communication message initiated by the main control board line card agent unit; parses the message valid request information, and outputs the request information to the interface conversion unit; meanwhile, the interface is The response information returned by the switch is encapsulated into the inter-board communication packet, and then the packet is sent to the main control board.

The specific process is as follows:

Receiving the inter-board communication message forwarded by the cross-unit, parsing the content of the message, extracting the message request type, generating a corresponding request signal according to the request type, and outputting the request signal to the interface conversion unit. At the same time, the receiving interface conversion unit responds to the information. The response information is encapsulated into an inter-board communication message, and the encapsulated message is sent to the cross-unit.

Its internal implementation structure is shown in Figure 8.

In the receiving direction, the message termination unit, the request message buffer unit, the active query information generating unit, and the request scheduling unit are included.

The message termination unit receives the inter-board communication message of step 2. When the message is received correctly, the valid information is extracted from the inter-board communication message, and the extracted valid information is buffered to the request message buffer unit, waiting for the request to move the unit. Request permission information.

The scheduling unit is requested to pass the rotation training scheduling mode, and the rotation training responds to the inter-board communication message request and actively queries the information request; and then outputs the valid request command to the interface conversion unit.

In the sending direction, the flow control message generating unit, the response information buffering unit, the response scheduling unit, and the message initiating unit are included.

The response information buffering unit receives the response information returned by the interface conversion unit, buffers the response information, and outputs a data valid signal to the response scheduling unit.

The response scheduling unit determines the data valid signal of the flow control message generating unit and the data valid signal of the response information buffer unit by the rotation training, and transmits the response information to the message sending unit.

The message sending unit encapsulates the valid data transmitted by the response scheduling unit into the effective payload of the inter-board communication message according to the type and the message format; and then transmits the message to the cross unit.

Step 4: The interface conversion unit of the line card converts the line card control center unit output request signal into a general bus command.

When the request signal is a configuration command, the configuration command is converted into a write command of the bus.

When the request signal is a query command, the command is queried as a read command of the bus; at the same time, the read and acquired information is output to the line card control center unit.

Specifically, the interface conversion unit receives the request signal command outputted in step 3, and parses the type of the request command. When the request command is a configuration type, the configuration command and the valid data are converted into a write enable signal, an address and a data of the bus; when the request command is a query type, the query command and the valid data are converted into a read enable signal of the bus, Address; wait for the bus to read back data; then transfer the return data to the response information buffer unit of step 3.

In the line card management method and system of the embodiment of the present invention, the main control board establishes a communication connection with the line card through the Ethernet interface, and manages the line card through the inter-board communication message based on the Ethernet interface, thereby solving the line card. No CPU line card management problem, at the same time can reduce the line card hardware cost; In addition, in this solution, the Ethernet interface is used to complete the interaction between the board communication messages, and the Ethernet interface is full-duplex mode, which resolves the conflict on the I2C bus. Serious Problem.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or process changes made by the specification and the drawings of the present invention may be directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Industrial applicability

As described above, the line card management method and system provided by the embodiment of the present invention have the following beneficial effects: the main control board establishes a communication connection with the line card through the Ethernet interface, and transmits the inter-board communication message based on the Ethernet interface. Management of the line card, thereby realizing the management of the CPU card without the line card on the line card, and at the same time reducing the hardware cost of the line card; in addition, the communication between the boards can be completed through the Ethernet interface, and the Ethernet interface is full. The duplex mode is used to solve the serious conflict problem on the I2C bus.

Claims

A line card management method includes:

The main control board establishes a communication connection with at least one line card through an Ethernet interface;

The master control board manages the at least one line card by using an inter-board communication message based on the Ethernet interface.
The method of claim 1, wherein the step of managing the at least one line card by the inter-board communication message based on the Ethernet interface is:

After the line card agent is started, the master card encapsulates the command information with the destination MAC address and the source MAC address in the first inter-board communication message when receiving the command from the upper-layer application.

The main control board sends the first inter-board communication message to the specified line card.
The method of claim 2, wherein the step of managing the at least one line card by using the inter-board communication message based on the Ethernet interface is further included:

Receiving, by the line card, the first inter-board communication message sent by the main control board;

The line card parses the first inter-board communication message, and extracts a message request type;

The line card generates a corresponding request signal according to the message request type;

The line card converts the corresponding request signal into a corresponding bus operation.
The method of claim 3 wherein the step of converting the corresponding request signal to a corresponding bus operation by the line card comprises:

When the request signal is a configuration command, the line card converts the request signal into a write command of the bus;

When the request signal is a query command, the line card converts the request signal into a read command of the bus, and encapsulates the information obtained by the read command into a second inter-board communication message and returns the information to the main control board.
The method of claim 4, wherein the step of managing the at least one line card by using the inter-board communication message based on the Ethernet interface is further included:

Receiving, by the main control board, a second inter-board communication message sent by the line card;

The master control board extracts valid data from the second inter-board communication message;

The master control board encapsulates the extracted valid data into an S-port message and reports it to the upper-layer application.
The method according to any one of claims 1 to 5, wherein the step of managing the at least one line card by the inter-board communication message based on the Ethernet interface is further:

After the online card is powered on, the line card reports the packet type message to the main control board.

The master board determines whether the board type message reported by the line card conforms to a pre-configured format, and if so, starts the line card agent.
A line card management system includes: a main control board and at least one line card; wherein:

The master control board is configured to establish a communication connection with the at least one line card through an Ethernet interface; and manage the at least one line card by using an inter-board communication message based on the Ethernet interface;

The at least one line card is configured to interact with the main control board through the inter-board communication message based on the Ethernet interface.
The system of claim 7 wherein

The main control board is further configured to, after the line card agent is started, encapsulate the issued command information, together with the destination MAC address and the source MAC address, into the first inter-board communication message, when receiving the command sent by the upper-layer application. Sending the first inter-board communication message to the specified line card.
The system of claim 8 wherein

The line card is further configured to receive the first inter-board communication message sent by the main control board; parse the first inter-board communication message, and extract a message request type; according to the message The request type generates a corresponding request signal; converts the corresponding request signal into a corresponding bus operation.
The system of claim 9 wherein

The line card is further configured to: when the request signal is a configuration command, convert the request signal into a write command of the bus; when the request signal is a query command, convert the request signal into a read command of the bus, and The information obtained by the read command is encapsulated into a second inter-board communication message and returned to the main control board.
The system of claim 10 wherein

The main control board is further configured to receive a second inter-board communication message sent by the line card, and extract valid data from the second inter-board communication message; and encapsulate the extracted valid data into an S-port report. Text, reported to the upper application.
A system according to any one of claims 7 to 11, wherein

The line card is further configured to report a board type message to the main control board after being powered on;

The main control board is further configured to determine whether the board type message reported by the line card conforms to a pre-configured format, and if so, the line card agent is started.