WO2016045302A1

WO2016045302A1 - Inward-facing connectivity fault management packet processing method and system, and network data exchange device

Info

Publication number: WO2016045302A1
Application number: PCT/CN2015/072697
Authority: WO
Inventors: 张琦
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-09-25
Filing date: 2015-02-10
Publication date: 2016-03-31
Also published as: CN105515807A; CN105515807B

Abstract

An inward-facing connectivity fault management packet processing method and system, and a network data exchange device, the method comprising: a main control board of a first network data exchange device generates a first inward-facing connectivity fault management packet according to a configuration parameter of the first inward-facing connectivity fault management packet, and the first inward-facing connectivity fault management packet is sent to an inward-facing maintenance end point line card or another network data exchange device by the main control board according to a packet identifier. It is not necessary to independently produce a packet generation mechanism on the inward-facing maintenance end point line card, and full use is made of the feature of the main control board generating the packet, enabling the hardware and software design of the entire network data exchange device to be more simplified.

Description

Inbound connectivity fault management message processing method, system and network data exchange device

Technical field

The present invention relates to the field of communications, and in particular, to an inbound connectivity fault management (Up CMF) message processing method, system, and network data switching device.

Background technique

OAM (Operation, Administration and Maintenance) technology in the communication field, which involves Up CMF (Up Connectivity Fault Management) in CMF (Connectivity Fault Management) messages. The generation and termination of the message. CMF is a network-level Ethernet OAM technology.

In the communication network, Ethernet OAM technology can effectively improve the management and maintenance capabilities of the Ethernet and ensure the stable operation of the network. The service layer Ethernet OAM technology CMF is mostly applied to the access aggregation layer of the network, which is used to monitor connectivity of the entire network and locate connectivity faults of the network. The CMF message is divided into the Down CMF (Down Connectivity Fault Management) message and the Up CMF message. The Up CMF message is initiated and terminated in the Up mep (inbound maintenance endpoint). The mep (Maintenace entity group end point) refers to the maintenance endpoint of the maintenance domain, which determines the scope and boundaries of the maintenance domain. The maintenance endpoint has directionality and is divided into two types: the outward maintenance endpoint (Down mep) and the inbound maintenance endpoint (Up mep). The direction of the maintenance endpoint indicates the location of the maintenance domain relative to that port. The outbound maintenance endpoint sends packets to the port through its port. The inbound maintenance endpoint does not send packets through its port. Instead, it sends packets to other ports on the device.

Currently, for the generation and termination of OAM packets, the OAM packets include the MPLS-TP (Multi-Protocol Label Switching-Transport Architecture) OAM report. The BFD (Bidirectional Forwarding Detection) packet and the Down CMF packet are generated from the main control board and sent to the peer control board through the NNI (network network interface) line card. At the end, only the Up CMF message needs to be generated and terminated on the Up mep line card, and a set of message generation termination mechanism is generated on the Up mep line card alone. The hardware and software design of the entire system is complicated, and it consumes more resources, which also imposes constraints on the development of various line cards.

Summary of the invention

An embodiment of the present invention provides an inbound connectivity fault management (Up CMF) packet processing method, system, and network data exchange device. In the prior art, a set of packet generation termination mechanism is generated on an Up mep line card. The hardware and software design of the system is complicated.

To solve the above technical problem, the embodiment of the present invention provides a method for processing an Up CMF packet, which includes: a main control board of the first network data switching device generates a first inbound according to a configuration parameter of the first inbound connectivity fault management message. Connectivity fault management packet.

Optionally, the method for processing the Up CMF packet further includes: the first network data switching device sends the first inbound connectivity fault management packet to the second network data switching device of the peer end.

Optionally, the sending, by the first network data switching device, the first inbound connectivity fault management packet to the second network data switching device includes:

The main control board of the first network data switching device sends the first inbound connectivity fault management message to the inbound maintenance endpoint line card on the first network data switching device; the inbound maintenance endpoint line card receives the first inbound connection And processing the first inbound connectivity fault management packet, and sending the packet to the main control board;

The main control board of the first network data switching device sends the first inbound connectivity fault management message processed by the inbound maintenance endpoint line card to the second network data switching device.

Optionally, before the main control board of the first network data switching device sends the first inbound connectivity fault management message to the inbound maintenance endpoint line card on the first network data switching device, the method further includes: Setting an internal internal forwarding direction identifier to an inbound connectivity fault management message;

And sending, by the main control board of the first network data switching device, the first inbound connectivity fault management packet to the inbound maintenance endpoint line card on the first network data switching device, where: the first network data switching device The main control board determines whether the first inbound connectivity fault management message includes a first internal forwarding direction identifier; and if the first inbound connectivity fault management message includes a first internal forwarding direction identifier, An inbound maintenance endpoint line card on a network data switching device;

After the inbound maintenance endpoint line card receives the first inbound connectivity fault management packet, the processing of the first inbound connectivity fault management packet includes: removing the first internal forwarding direction identifier;

Sending, by the main control board of the first network data switching device, the first inbound connectivity fault management packet from the inbound maintenance endpoint line card to the second network data switching device, including: the first network data exchange The main control board of the device determines whether the first inbound connectivity fault management message includes a first internal forwarding direction identifier; if the first inbound connectivity fault management packet does not include the first internal forwarding direction identifier, the method is sent to A second network data exchange device.

In an embodiment of the present invention, the method for processing the Up CMF packet further includes: the first network data switching device receiving a second inbound connectivity fault management message sent by another network data switching device other than itself;

The main control board of the first network data switching device terminates the second inbound connectivity fault management message.

Optionally, the second inbound connectivity fault management message sent by the network data switching device that is received by the first network data switching device is:

The main control board of the first network data switching device receives the second inbound connectivity fault management message;

Sending, by the main control board, the second inbound connectivity fault management packet to an inbound maintenance endpoint line card on the first network data switching device;

The inbound maintenance endpoint line card receives the second inbound connectivity fault management packet and processes the second inbound connectivity fault management packet, and sends the processed second inbound connectivity fault management packet to the The main control board on the first network data switching device.

Optionally, the sending, by the main control board, the second inbound connectivity fault management packet to the inbound maintenance endpoint line card on the first network data switching device includes: a primary of the first network data switching device The control board determines whether the second inbound connectivity fault management message includes a second internal forwarding direction identifier; if the second inbound connectivity fault management message does not include the second internal forwarding direction identifier, the control board sends the An inbound maintenance endpoint line card on a network data switching device;

After the inbound maintenance endpoint line card receives the second inbound connectivity fault management packet, the processing of the second inbound connectivity fault management packet includes: performing the second inbound connectivity The fault management message sets a second internal forwarding direction identifier;

After the inbound maintenance endpoint line card sends the second inbound connectivity fault management packet to the main control board, the main control board terminates the second inbound connectivity fault management message, including: The main control board of the first network data switching device determines whether the second inbound connectivity fault management message includes a second internal forwarding direction identifier, if the second inbound connectivity fault management message includes a second internal forwarding direction identifier And performing termination processing on the second inbound connectivity fault management message.

The embodiment of the present invention further provides another method for processing an Up CMF packet, including: receiving, by the second network data switching device, the first inbound connectivity fault management packet sent by the first network data switching device, and terminating the first Inbound connectivity fault management message;

The first inbound connectivity fault management packet is generated by the main control board of the first network data switching device according to the configuration parameter of the first inbound connectivity fault management packet.

In an embodiment of the present invention, the second network data switching device receives the first inbound connectivity fault management message, and terminates the first inbound connectivity fault management message, including: the second network data switching device receiving station The first inbound connectivity fault management packet is described, and the first inbound connectivity fault management packet is terminated by the main control board of the second network data switching device.

The embodiment of the present invention further provides a network data exchange device, including a main control board, where the main control board includes a first packet generation module, and the first packet generation module is configured to be based on the first inbound connectivity fault management packet. The configuration parameters generate a first inbound connectivity fault management message.

Optionally, the main control board further includes a first packet sending module, where the first packet sending module is configured to send the first inbound connectivity fault management packet to other network data switching devices of the peer end.

In an embodiment of the present invention, the main control board further includes: a second packet receiving module and a second packet termination module; and the second packet receiving module is configured to receive the second sent by the other network data switching device at the opposite end The inbound connectivity fault management packet is configured to terminate the second inbound connectivity fault management packet.

The embodiment of the present invention further provides another network data exchange device, including a main control board, where the main control board includes a processor and a packet processing circuit, and the processor is configured to configure a first inbound connectivity fault management packet. Parameter, processor or message processing circuit according to the first inbound connectivity fault management message The configuration parameter generates a first inbound connectivity fault management packet.

Optionally, the network data switching device is further configured to send the first inbound connectivity fault management document to other network data switching devices of the peer end after the first inbound connectivity fault management packet is generated.

Optionally, the network data switching device further includes an inbound maintenance endpoint line card; the main control board further includes a switch chip, and the processor or the message processing circuit is configured to generate the first inbound connectivity fault management report After the first inbound connectivity fault management packet is sent to the switch chip, the switch chip is configured to receive the first inbound connectivity fault management packet generated by the packet processing circuit. Transmitting the first inbound connectivity fault management packet to the inbound maintenance endpoint line card, where the inbound maintenance endpoint line card is configured to: after receiving the first inbound connectivity fault management packet, An inbound connectivity fault management packet is processed and sent to the switch chip of the main control board; the switch chip is configured to send the first inbound connectivity fault management packet to other network data switching devices of the peer end .

In an embodiment of the present invention, the processor and the packet processing circuit are further configured to receive a second inbound connectivity fault management packet sent by another network data switching device, and manage the second inbound connectivity fault management The message is terminated.

Optionally, when the network data switching device further includes an inbound maintenance endpoint line card, where the main control board further includes a switch chip, the switch chip is further configured to receive the second inbound connectivity fault management message, and receive the received The second inbound connectivity fault management packet is sent to the inbound maintenance endpoint line card; the inbound maintenance endpoint line card is configured to receive the second inbound connectivity fault management packet and connect the second inbound connection The fault management packet is processed, and the processed second inbound connectivity fault management packet is sent to the switch chip of the main control board; the switch chip is further configured to receive the inbound maintenance endpoint line card. The sent second inbound connectivity fault management message is sent to the processor or the packet processing circuit; and the processor or the packet processing circuit is configured to terminate the second inbound connectivity fault management packet.

The embodiment of the present invention further provides an Up CMF packet processing system, including: a first network data switching device and a second network data switching device, where the first network data switching device includes a first main control board, and the first main control board The first processor and the first message processing circuit are included;

The first processor is configured to configure a first inbound connectivity fault management message parameter, where the a message processing circuit or a first processor is configured to generate a first inbound connectivity fault management packet according to the first inbound connectivity fault management packet configuration parameter, and generate the generated first inbound connectivity fault management The message is sent to the second network data switching device for termination processing.

Optionally, the second network data switching device includes a second main control board, where the second main control board includes a second processor and a second packet processing circuit, and the second processor or the second packet The processing circuit is configured to perform a termination process on the first inbound connectivity fault management message.

The embodiment of the invention further provides a computer program and a storage medium thereof, the computer program comprising program instructions, when the program instruction is executed by the first network data exchange device, enabling the device to implement the inward connectivity fault management (Up CMF) a method of message processing; the storage medium storing the computer program.

The beneficial effects of the embodiments of the present invention are:

The embodiment of the present invention provides an Up CMF packet processing method, a system, and a network data exchange device, wherein the Up CMF packet processing method includes: the main control board of the first network data switching device according to the first inbound connectivity fault management message The configuration parameters generate a first inbound connectivity fault management message. In the Up CMF packet processing method, the main control board generates an Up CMF message. In the prior art, only the Up CMF packet is generated on the inbound maintenance line card, and the main control board itself generates another packet. Therefore, the generation of the Up CMF packet is set on the main control board. The aspect does not require a separate packet generation mechanism on the inbound maintenance endpoint line card. On the other hand, it fully utilizes the characteristics of the main control board to generate packets, which makes the hardware and software design of the first network data exchange device simpler. .

Optionally, in an embodiment of the method for processing the Up CMF packet, the first network data switching device further receives a second inbound connectivity fault management packet from itself, and is exchanged by the first network data. The main control board of the device performs packet termination processing. Therefore, the generation and termination of the Up CMF message on the first network data switching device are performed by the main control board of the first network data switching device. Compared with the foregoing manner of generating Up CMF messages only on the main control board of the first network data switching device, the hardware and software design of the first network data switching device is further simplified.

BRIEF abstract

1 is a schematic flowchart of a method for processing an Up CMF packet according to Embodiment 1 of the present invention;

2 is a schematic flowchart of a method for sending a first inbound connectivity fault management packet in an Up CMF packet processing method according to Embodiment 1 of the present invention;

3 is a schematic flowchart of a method for receiving a second inbound connectivity fault management message in an Up CMF packet processing method according to Embodiment 1 of the present invention;

4 is a schematic flowchart of a method for processing an Up CMF packet according to Embodiment 2 of the present invention;

FIG. 5 is a schematic structural diagram of a network data exchange device according to Embodiment 3 of the present invention; FIG.

FIG. 6 is a schematic structural diagram of another network data switching device according to Embodiment 3 of the present invention; FIG.

FIG. 7 is a schematic structural diagram of an Up CMF packet processing system according to Embodiment 4 of the present invention; FIG.

FIG. 8 is a schematic structural diagram of another Up CMF packet processing system according to Embodiment 4 of the present invention; FIG.

9 is a schematic flowchart of a method for processing an Up CMF packet according to Embodiment 5 of the present invention;

10 is a schematic structural diagram of a device for carrying a PTN network access layer device A and a device for carrying a PTN network access layer in an Up CMF packet processing method according to Embodiment 5 of the present invention;

11 is a schematic structural diagram of a network data exchange device according to Embodiment 6 of the present invention;

FIG. 12 is a schematic structural diagram of another network data switching device according to Embodiment 6 of the present invention.

Preferred embodiment of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other. Additionally, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.

Embodiment 1:

This embodiment provides an Up CMF packet processing method. Referring to FIG. 1, the method includes:

Step S101: The main control board of the first network data switching device is configured according to the first inbound connectivity fault tube. Generating the first inbound connectivity fault management packet by using the configuration parameters of the packet;

Step S102: The first network data switching device sends the first inbound connectivity fault management packet to the second network data switching device of the peer end.

In this embodiment, the network data switching device may be a PTN network access layer device or the like.

In the above step S101, the main control board may generate a first inbound connectivity fault management message by using a processor and a packet processing circuit, for example, the processor configures parameters of the first inbound connectivity fault management packet, and the packet processing circuit is configured according to the packet processing circuit. The configuration parameter generates a first inbound connectivity fault management packet. Of course, the processor can also generate Up CMF packets according to the configuration parameters. Generally, the Up CMF packets generated by the processor are slow Up CMF packets. The message processing circuit may be an FPGA (Field-Programmable Gate Array) or a PLA (Programmable Logic Array).

Further, the above step S102 may further include the following steps, please refer to FIG. 2:

Step S201: The main control board of the first network data switching device sends the first inbound connectivity fault management packet to the inbound maintenance endpoint line card on the first network data switching device.

Step S202: The inbound maintenance endpoint line card receives the first inbound connectivity fault management packet and processes the packet, and sends the packet to the main control board.

Step S203: The main control board of the first network data exchange device sends the first inbound connectivity fault management packet processed by the inbound maintenance endpoint line card from the inbound maintenance endpoint line card to the second network data exchange. device.

In this embodiment, the main control board of the first network data switching device can not only generate an Up CMF packet but also complete the termination processing of the Up CMF packet. For example, after the first network data switching device receives the second inbound connectivity fault management packet sent by the network data switching device, the main control board terminates the second inbound connectivity fault management packet.

Further, the receiving, by the first network data switching device, the second inbound connectivity fault management packet sent by the other network data switching device may include the following steps, as shown in FIG. 3:

Step S301: The main control board of the first network data switching device receives the second inbound connectivity fault management message of the other network data switching device.

Step S302: The main control board sends the second inbound connectivity fault management packet to the first network data. Inbound maintenance endpoint line card on the switching device;

Step S303: After receiving the second inbound connectivity fault management packet, the inbound maintenance endpoint line card sends the processed second inbound connectivity fault management packet to the master on the first network data switching device. board.

In the above steps S201-S203 and S301-S303, the receiving, transmitting and processing of the first Up CMF message and the second Up CMF message by the main control board are involved. That is to say, after receiving the Up CMF message, the main control board needs to process it, for example, terminate processing, send it to the inbound maintenance endpoint line card or the second network data switching device. To facilitate the control mode of the Up CMF packet, you can set the forwarding direction identifier for the first Up CMF packet and the second Up CMF packet. You can use the following methods to set the forwarding direction:

Before the step S201, that is, before the main control board of the first network data switching device sends the first inbound connectivity fault management packet to the inbound maintenance endpoint line card on the first network data switching device, the method further includes: The inbound connectivity fault management packet sets a first internal forwarding direction identifier; the main control board of the first network data switching device sends the first inbound connectivity fault management packet to the inbound maintenance endpoint line card on the first network data switching device The main control board of the first network data switching device determines whether the first inbound connectivity fault management message includes the first internal forwarding direction identifier, and if yes, sends the inbound maintenance endpoint line card to the first network data switching device. After the inbound maintenance endpoint line card receives the first inbound connectivity fault management packet, the processing of the first inbound connectivity fault management packet includes: removing the first internal forwarding pointer identifier; the master of the first network data switching device The control board sends the first inbound connectivity fault management message from the inbound maintenance endpoint line card to the second network data exchange device. The main control board of the first network data switching device determines whether the first inbound connectivity fault management message includes the first internal forwarding direction identifier, and if not, sends the information to the second network data switching device. The first internal forwarding direction identifier may be a separate identifier, or may be borrowed from an attribute parameter of the first Up CMF message, such as an etype (Ethernet type) field value of the first Up CMF message. When the main control board just generates the first Up CMF packet, set its etype field value to the value required for the internal link transmission of the first network data switching device, for example, 0xfefe. At this time, the etype field value is 0xfefe is the first. The internal forwarding direction is directed to the identifier. After the main control board sends the first Up CMF packet to the inbound maintenance endpoint line card, the inbound maintenance endpoint line card modifies its etype field value to the first network data switching device and other network data switching devices. Standards required for interaction The value of the etype field is 0x8902. Therefore, the value of the etype field is no longer 0xfefe. Therefore, the first internal forwarding direction identifier is removed, and then sent to the main control board. The main control board receives the first Up. After the CMF packet is received, the etype field value is 0x8902, and it is determined that the first Up CMF packet does not have the first internal forwarding identifier, and the first Up CMF packet needs to be sent to the peer second network data exchange. Instead of forwarding it to the inbound maintenance endpoint line card, the device forwards it.

In the foregoing step S202, the processing of the inbound maintenance endpoint line card to the received first Up CMF further includes: modifying the LM (frame loss measurement) and DM (frame delay measurement) function related fields in the first Up CMF message. Value, completes the LM and DM functions of the Up CMF message.

In the above step S301, the main control board of the first network data switching device sends the second inbound connectivity fault management message to the inbound maintenance endpoint line card on the first network data switching device, including: the first network data switching device The main control board determines whether the second inbound connectivity fault management message includes the second internal forwarding direction identifier, and if not, sends the inbound maintenance endpoint line card to the first network data switching device; the inbound maintenance endpoint line card receives the first After the second inbound connectivity fault management packet, the processing includes: setting a second internal forwarding direction identifier for the second inbound connectivity fault management packet; and inbound maintaining the endpoint line card to report the second inbound connectivity fault management packet After the message is sent to the main control board, the main control board terminates the second inbound connectivity fault management message, including: the main control board of the first network data switching device determines whether the second inbound connectivity fault management message contains the second internal forwarding direction The identifier, if any, performs termination processing on the second inbound connectivity fault management message. The second internal forwarding direction identifier may be a separate identifier, or may be borrowed from an attribute parameter of the second Up CMF message, such as an etype (Ethernet type) field value of the second Up CMF message. Further, the etype field value 0xfeff can be set to the second internal forwarding direction identifier. If the etype field in the second UpCMF packet is a standard etype field value that is required for the first network data switching device to interact with other network data switching devices, that is, 0x8902, the main control board can pass the etype field. The value determines that the second Up CMF message does not include the second internal forwarding direction identifier, so as to determine that the processing of the second Up CMF message is forwarded to the inbound maintenance endpoint line card instead of terminating the second Up CMF message. After the main control board sends the second Up CMF message to the inbound maintenance endpoint line card, the inbound maintenance endpoint line card modifies the etype field value of the second Up CMF message to the internal link of the first network data switching device. The required value, for example, 0xfeff, that is, the second internal forwarding direction identifier, is then sent to the main control board, and the main control board receives the second Up CMF message, and learns about it. The value of the etype field is 0xfeff, so that the second inbound connectivity fault management packet includes the second internal forwarding direction identifier, and then determines that the processing of the second Up CMF packet is terminated, instead of forwarding it to other network data. Switching equipment.

Embodiment 2:

This embodiment provides an Up CMF packet processing method. Referring to FIG. 4, the method includes the following steps:

Step S401: The main control board of the first network data switching device generates a first inbound connectivity fault management message according to the configuration parameter of the first inbound connectivity fault management packet.

Step S402: The first network data switching device sends the first inbound connectivity fault management message to the second network data switching device.

Step S403: The second network data switching device receives the first inbound connectivity fault management packet and terminates the first inbound connectivity fault management packet.

In the above step S403, the first inbound connectivity fault management message may be terminated by the main control board of the second network data switching device.

Embodiment 3:

This embodiment provides a network data switching device. Referring to FIG. 5, the network data switching device includes a main control board 501. The main control board includes a processor 5011 and a message processing circuit 5012. The processor 5011 is configured to configure the first inbound direction. The connectivity fault management packet parameter, the packet processing circuit 5012 or the processor 5011 generates a first inbound connectivity fault management packet according to the first inbound connectivity fault management packet configuration parameter, specifically, the processor 5011 or the packet processing The circuit 5012 generates a first inbound connectivity fault management packet according to the configuration parameter, and needs to be determined according to the type of the first Up CMF packet to be generated, for example, the fast Up CMF packet needs to be generated by the packet processing circuit 5012, and the slow Up is generated. The CMF message may be generated by the processor 5011 or by the message processing circuit 5012. After the first inbound connectivity fault management packet is generated, the first inbound connectivity fault management document is sent to other network data switching devices of the peer end. The message processing circuit in this embodiment may be an FPGA (Field-Programmable Gate Array), a PLA (Programmable Logic Array), or the like.

In this embodiment, another network data exchange device is also provided. Referring to FIG. 6, the network data switching device includes an inbound maintenance endpoint line card 502 and a main control board in addition to the main control board 501. The 501 further includes a switch chip 5013. The processor 5011 or the message processing circuit 5012 sends the first inbound connectivity fault management message to the switch chip 5013 for receiving the processor 5011 or the report. After the first inbound connectivity fault management message generated by the text processing circuit 5012, the first inbound connectivity fault management message is sent to the inbound maintenance endpoint line card 502, and the inbound maintenance endpoint line card 502 receives the first inbound connection. After the fault management packet is processed, it is sent to the switch chip 5013 of the main control board, and the switch chip 5013 sends the first inbound connectivity fault management packet processed by the inbound maintenance endpoint line card 502 to the peer. Network data exchange equipment. In this embodiment, after the inbound maintenance endpoint line card 502 receives the first inbound connectivity fault management packet, the processing may include modifying the etype field value of the first inbound connectivity fault management packet. In this embodiment, the inbound maintenance endpoint line card may be a UNI (user network interface) line card.

In this embodiment, the processor 5011 or the packet processing circuit 5012 further receives the second inbound connectivity fault management packet sent by the other network data switching device, and performs termination processing on the second inbound connectivity fault management packet. . The second inbound connectivity fault management packet is received by the processor 5011 or the packet processing circuit 5012, and the final processing is performed according to the type of the second inbound connectivity fault management packet. Generally, the slow Up CMF packet is processed by the processor. Receive and terminate, the fast UpCMF message is received and terminated by the message processing circuit.

In this embodiment, when the network data exchange device further includes an inbound maintenance endpoint line card 502, and the main control board 501 further includes the switch chip 5013, the switch chip 5013 is further configured to receive the second inbound connectivity fault management message, and After receiving the second inbound connectivity fault management packet, the second inbound connectivity fault management packet is sent to the inbound maintenance endpoint line card 502, and after the inbound maintenance endpoint line card 502 receives the second inbound connectivity fault management packet, The second inbound connectivity fault management packet is processed and sent to the switch chip 5013 of the main control board 501. After the switch chip 5013 receives the second inbound connectivity fault management packet sent by the inbound maintenance endpoint line card 502, And sending it to the processor 5011 or the message processing circuit 5012, and the processor 5011 or the message processing circuit 5012 completes the termination process of the second inbound connectivity fault management message.

Embodiment 4:

The present embodiment provides an Up CMF packet processing system. Referring to FIG. 7, the Up CMF packet processing system includes a first network data switching device 701 and a second network data switching device 702. The first network data switching device 701 The first main control board 7011 includes a first processor 70111 and a first message processing circuit 70112. The first processor 70111 is configured to configure a first inbound connectivity fault management message parameter. The processor 70111 or the first packet processing circuit 70112 generates a first inbound connectivity fault management packet according to the first inbound connectivity fault management packet configuration parameter, and sends the first inbound connectivity fault management packet after the first inbound connectivity fault management packet is generated. The second network data exchange device 702 is terminated.

In this embodiment, another Up CMF packet processing system is provided. Referring to FIG. 8, in the Up CMF packet processing system, the second network data switching device 702 further includes a second main control board 7021. The second main control board 7021 includes a second processor 70211 and a second message processing circuit 70212. The second processor 70211 or the second message processing circuit 70212 performs termination processing on the first inbound connectivity fault management message.

Embodiment 5:

This embodiment provides an Up CMF packet processing method. In this embodiment, the PTN network access layer device is used to represent the network data switching device in the embodiment of the present invention. Referring to FIG. 9 and FIG. 10, FIG. 9 is A schematic flowchart of a method for processing an Up CMF packet according to an embodiment of the present invention. FIG. 10 is a device for processing a PTN network access layer and a device for carrying a PTN network access layer in an Up CMF packet processing method according to an embodiment of the present invention. The structure diagram of the method specifically includes the following steps:

Step S901: First, the CPU and the FPGA of the main control board of the device A of the PTN network access layer device generate an Up CMF message. For the switch chip to identify the Up CMF packet, the etype field value of the Up CMF packet is defined as 0xfefe as the first internal forwarding direction identifier. Both the Up CMF packet and the Down CMF packet are generated by the CPU and the FPGA. The difference is that the etype field value of the carried packet is different.

The main control board can generate other OAM packets, such as BFD packets and MPLS-TP OAM packets, in addition to Up CMF packets and Down CMF packets. BFD packet It contains information such as cycle, my discriminator, and your discriminator. The MPLS-TP OAM packet contains information such as the period, the meg id, and the mep id. The Down CMF packet and the Up CMF packet contain information such as the period, mel, ma id, and mep id.

Step S902: The switch chip carrying the main control board of the PTN network access layer device A identifies an Up CMF message with an etype of 0xfefe input from the FPGA or the CPU, and forwards it to the corresponding Up mep line card. The other OAM packets generated by the main control board are directly sent to the NNI line card (network network interface line card) through the switch chip, and then sent by the NNI line card to the peer end carrying the PTN network access layer device B.

The Up CMF packet is sent and received on the service port of the main control board to the Up mep line card. To avoid the service bandwidth, the minimum frame gap of the service port packet is reduced. The bandwidth is extended for Up CMF packets. Send and receive.

Step S903: The FPGA on the Up mep line card carrying the PTN network access layer device A receives the Up CMF message sent by the switch chip of the main control board. The FPGA on the Up mep line card changes the etype field value of the UpCMF packet to 0x8902, and then returns it to the main control board.

Step S904: The switch chip of the main control board of the PTN network access layer device A identifies an Up CMF packet with an etype field value of 0x8902 from the Upmep line card, and determines that the first internal forwarding direction identifier is not included in the packet. It is forwarded to the corresponding NNI line card, and sent from the corresponding port of the NNI line card to the opposite end carrying the PTN network access layer device B.

Step S905: The NNI line card carrying the PTN network access layer device B receives the Up CMF message with the etype field value of 0x8902 sent from the NNI line card of the PTN network access layer device A. It is transmitted to the main control board switch chip that carries the PTN network access layer device B.

Step S906: The switch chip carrying the main control board of the PTN network access layer device B forwards the Up CMF message with the etype field value of 0x8902 from the NNI line card to the Up mep line card carrying the PTN network access layer device B.

Step S907: The FPGA that carries the Up mep line card of the PTN network access layer device B receives the UpCMF packet, and the etype field value is modified from 0x8902 to 0xfeff and then forwarded to the switch chip of the main control board.

Step S908: The switch chip carrying the PTN network access layer device B main control board receives from Up The Up CMF packet with the etype field value of the mep line card of 0xfeff determines that the Up CMF message contains the second internal forwarding direction identifier and forwards it to the processor or packet processing circuit of the Up CMF of the main control board.

Step S909: The CPU or FPGA that carries the PTN network access layer device B main control board receives the Up CMF message from the switch chip, and performs termination processing on the same.

Example 6:

The embodiment provides a network data exchange device. Referring to FIG. 11, the network data exchange device includes a main control board 1101, and the main control board 1101 includes a first packet generation module 11011 and a first packet sending module 11012. A message generating module 11011 is configured to generate a first inbound connectivity fault management packet according to a configuration parameter of the first inbound connectivity fault management packet, where the first packet sending module 11012 is configured to use the first inbound connectivity fault management report. The text is sent to other network data exchange devices on the peer end.

In this embodiment, another network data exchange device is also provided. Referring to FIG. 12, the network data exchange device includes: second report, in addition to each module in the main control board 1101 in FIG. The second packet receiving module 11013 is configured to receive the second inbound connectivity fault management packet sent by the other network data switching device at the opposite end; the second packet termination module 11014 is used by the second packet receiving module 11013. Ending the second inbound connectivity fault management message.

One of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described embodiments can be implemented using a computer program flow, which can be stored in a computer readable storage medium, such as on a corresponding hardware platform (eg, The system, device, device, device, etc. are executed, and when executed, include one or a combination of the steps of the method embodiments.

Alternatively, all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve. Thus, the invention is not limited to any specific combination of hardware and software.

Each device/function module/functional unit in the above embodiments may use a general-purpose computing device. Implementations can be centralized on a single computing device or distributed across a network of multiple computing devices.

When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. The above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

Variations or substitutions are readily conceivable within the scope of the present invention by those skilled in the art and are within the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Industrial applicability

According to the technical solution of the present invention, the main control board of the network data exchange device generates the first inbound connectivity fault management packet according to the configuration parameter of the first inbound connectivity fault management packet, and the main control board identifies the packet according to the packet. Sending to the inbound maintenance endpoint line card or other network data switching device does not require a separate packet generation mechanism on the inbound maintenance endpoint line card, and fully utilizes the characteristics of the main control board to generate packets, so that the entire network data exchange The hardware and software design of the device is simpler.

Claims

An inbound connectivity fault management (Up CMF) packet processing method, including:

The main control board of the first network data switching device generates a first inbound connectivity fault management message according to the configuration parameter of the first inbound connectivity fault management packet.
The method of claim 1 further comprising the first network data switching device transmitting the first inbound connectivity fault management message to the second network data switching device.
The method of claim 2, wherein the transmitting, by the first network data switching device, the first inbound connectivity fault management message to the second network data switching device comprises:

The main control board of the first network data switching device sends the first inbound connectivity fault management packet to an inbound maintenance endpoint line card on the first network data switching device;

Receiving, by the inbound maintenance endpoint line card, the first inbound connectivity fault management packet, and processing the first inbound connectivity fault management packet, and sending the first inbound connectivity fault management packet to the main control board;

The main control board of the first network data switching device sends the first inbound connectivity fault management message processed by the inbound maintenance endpoint line card to the second network data switching device.
The method of claim 3, wherein the main control board of the first network data switching device sends the first inbound connectivity fault management message to the inbound maintenance on the first network data switching device The endpoint line card further includes: setting a first internal forwarding direction identifier for the first inbound connectivity fault management message;

And sending, by the main control board of the first network data switching device, the first inbound connectivity fault management packet to the inbound maintenance endpoint line card on the first network data switching device: the first network data exchange The main control board of the device determines whether the first inbound connectivity fault management message includes a first internal forwarding direction identifier; and if the first inbound connectivity fault management packet includes a first internal forwarding direction identifier, An inbound maintenance endpoint line card on the first network data switching device;

After the inbound maintenance endpoint line card receives the first inbound connectivity fault management packet, the processing of the first inbound connectivity fault management packet includes: removing the first internal forwarding direction identifier;

The sending, by the main control board of the first network data switching device, the first inbound connectivity fault management packet from the inbound maintenance endpoint line card to the second network data switching device includes: The main control board of the network data switching device determines whether the first inbound connectivity fault management message includes a first internal forwarding direction identifier; if the first inbound connectivity fault management message does not include the first internal forwarding direction identifier And sent to the second network data switching device.
The method of any of claims 1-4, further comprising:

The first network data switching device receives a second inbound connectivity fault management message sent by another network data switching device other than itself;

The main control board of the first network data switching device terminates the second inbound connectivity fault management message.
The method of claim 5, wherein the receiving, by the first network data switching device, the second inbound connectivity fault management message sent by the network data switching device other than itself comprises:

The main control board of the first network data switching device receives the second inbound connectivity fault management message;

Sending, by the main control board, the second inbound connectivity fault management packet to an inbound maintenance endpoint line card on the first network data switching device;

The inbound maintenance endpoint line card receives the second inbound connectivity fault management packet and processes the second inbound connectivity fault management packet, and sends the processed second inbound connectivity fault management packet to the The main control board on the first network data switching device.
The method of claim 6, wherein the transmitting, by the main control board, the second inbound connectivity fault management message to the inbound maintenance endpoint line card on the first network data switching device comprises: The main control board of the network data switching device determines whether the second inbound connectivity fault management message includes a second internal forwarding direction identifier; if the second inbound connectivity fault management message does not include the second internal forwarding direction identifier And sending to the inbound maintenance endpoint line card on the first network data switching device;

After the inbound maintenance endpoint line card receives the second inbound connectivity fault management packet, the processing of the second inbound connectivity fault management packet includes: processing the second inbound connectivity fault management packet Setting a second internal forwarding pointing identifier;

After the inbound maintenance endpoint line card sends the second inbound connectivity fault management packet to the main control board, the main control board terminates the second inbound connectivity fault management message, including: The main control board of the first network data switching device determines whether the second inbound connectivity fault management message includes a second internal forwarding direction identifier, if the second inbound connectivity fault management message includes a second internal forwarding direction And performing termination processing on the second inbound connectivity fault management message.
An inbound connectivity fault management (Up CMF) packet processing method, including:

Receiving, by the second network data switching device, the first inbound connectivity fault management packet sent by the first network data switching device, and terminating the first inbound connectivity fault management packet;

The first inbound connectivity fault management packet is generated by the main control board of the first network data switching device according to the configuration parameter of the first inbound connectivity fault management packet.
The method of claim 8, wherein the receiving, by the second network data switching device, the first inbound connectivity fault management message, and terminating the first inbound connectivity fault management message comprises: The second network data switching device receives the first inbound connectivity fault management packet, and terminates the first inbound connectivity fault management packet by the main control board of the second network data switching device.
A network data exchange device includes a main control board, where the main control board includes a first message generation module;

The first packet generating module is configured to generate a first inbound connectivity fault management packet according to the configuration parameter of the first inbound connectivity fault management packet.
The network data exchange device of claim 10, wherein the main control board further comprises a first message sending module, wherein the first message sending module is configured to set the first inbound connectivity fault management message Other network data exchange devices sent to the peer.
The network data exchange device of claim 10 or 11, wherein the main control board further comprises: a second message receiving module and a second message ending module;

The second packet receiving module is configured to receive a second inbound connectivity fault management packet sent by another network data switching device at the opposite end;

The second packet termination module is configured to terminate the second inbound connectivity fault management packet.
A network data exchange device includes a main control board, where the main control board includes a processor and a message processing circuit, and the processor is configured to configure a first inbound connectivity fault management message parameter. The processor or the packet processing circuit generates a first inbound connectivity fault management message according to the first inbound connectivity fault management packet configuration parameter.
The network data exchange device according to claim 13, wherein the network data exchange device is further configured to: after generating the first inbound connectivity fault management message, send the first inbound connectivity fault management document to the pair Other network data exchange devices on the side.
The network data switching device of claim 14 further comprising: an inbound maintenance endpoint line card; said main control board further comprising a switch chip, said processor or message processing circuit being configured to generate said first inbound communication After the fault management message, the first inbound connectivity fault management message is sent to the switch chip; the switch chip is configured to receive the first generated by the processor or the message processing circuit After the inbound connectivity fault management packet is sent, the first inbound connectivity fault management packet is sent to the inbound maintenance endpoint line card, and the inbound maintenance endpoint line card is set to receive the first inbound connectivity fault. After the management packet, the first inbound connectivity fault management packet is processed and sent to the switch chip of the main control board; the switch chip is configured to set the first inbound connectivity fault management packet Other network data exchange devices sent to the peer.
The network data exchange device according to any one of claims 13 to 15, wherein the processor or the message processing circuit is configured to receive a second inbound connectivity fault management message sent by another network data switching device, and The second inbound connectivity fault management message performs a termination process.
The network data exchange device according to claim 16, wherein when the network data switching device further includes an inbound maintenance endpoint line card, and the main control board further includes a switch chip, the switch chip is further configured to receive the a second inbound connectivity fault management packet, and the received second inbound connectivity fault management packet is sent to the inbound maintenance endpoint line card; the inbound maintenance endpoint line card is configured to receive the second inbound The connectivity fault management packet is processed, and the second inbound connectivity fault management packet is processed, and the processed second inbound connectivity fault management packet is sent to the switch chip of the main control board; the switch chip And sending, to the processor or the message processing circuit, the second inbound connectivity fault management message sent by the received inbound maintenance endpoint line card; the processor or the message processing circuit is set to The second inbound connectivity fault management packet is terminated.
An inbound connectivity fault management (Up CMF) packet processing system, comprising: a first network data switching device and a second network data switching device, where the first network data switching device includes a first main a control board, the first main control board includes a first processor and a first message processing circuit;

The first processor is configured to configure a first inbound connectivity fault management packet parameter, and the first packet processing circuit or the first processor is configured to generate a parameter according to the first inbound connectivity fault management packet configuration parameter. The first inbound connectivity fault management packet is sent, and the generated first inbound connectivity fault management packet is sent to the second network data switching device for termination processing.
The packet processing system of claim 18, wherein the second network data switching device comprises a second main control board, and the second main control board comprises a second processor and a second message processing circuit. The second processor or the second message processing circuit is configured to perform termination processing on the first inbound connectivity fault management message.
A computer program comprising program instructions that, when executed by a first network data exchange device, cause the device to perform the method of any of claims 1-7.
A carrier carrying the computer program of claim 20.