WO2016062034A1

WO2016062034A1 - Data processing method and device, data control unit and storage medium

Info

Publication number: WO2016062034A1
Application number: PCT/CN2015/076494
Authority: WO
Inventors: 金琳
Original assignee: 深圳市中兴微电子技术有限公司
Priority date: 2014-10-24
Filing date: 2015-04-13
Publication date: 2016-04-28
Also published as: CN105592372A; CN105592372B

Abstract

Disclosed is an optical network unit (ONU) data processing method, comprising: receiving the number of a traffic bearer entity to which a bandwidth is not allocated, and conducting elimination processing on data corresponding to the number of the traffic bearer entity to which the bandwidth is not allocated; and judging whether there is a bandwidth, and when there is not a bandwidth, marking error information on a data packet corresponding to the number of the traffic bearer entity to which the bandwidth is not allocated, and discarding the data packet on which the error information is marked. Also disclosed at the same time are a traffic management (TM) uplink outlet data control unit, an ONU data processing device and a storage medium.

Description

Data processing method and device, data control unit and storage medium

Technical field

The present invention relates to data processing technologies within an Optical Network Unit (ONU), and more particularly to an ONU data processing method and apparatus, a data control unit, and a storage medium.

Background technique

The Ethernet Passive Optical Network (EPON) technology extends each ONU to an eight-way Logical Link Identifier (LLID). The design of the eight-way LLID can greatly increase the type of application layer service data. Support for a wider variety of application services. Similarly, in Gigabit-Capable PON (GPON) systems, 32 to 64 transport containers (TCONT) are typically supported to support a wider variety of services.

Traffic Management (TM) uplink egress data control unit is an important part of ONU. Under the system supporting multiple LLID/TCONT, when the randomly unplugged fiber is plugged in again, the ONU needs to be re-registered; When the re-registered LLID number or TCONT number is consistent with the original, the TM uplink egress data control unit can perform data processing according to the hardware logic, and send the correct data to the Medium Access Control (MAC) unit; but when re-registered If the LLID number or TCONT number is inconsistent with the original, if the TM uplink export data control unit still performs data processing according to the hardware logic, the cached data cannot be cleared, and the correctness of data processing cannot be guaranteed.

Summary of the invention

In view of this, the embodiments of the present invention are expected to provide an ONU data processing method and apparatus, a data control unit, and a storage medium, which can ensure the correctness of data processing.

The technical solution of the embodiment of the present invention is implemented as follows:

An embodiment of the present invention provides an ONU data processing method, including:

Receiving a traffic bearer entity number of unallocated bandwidth;

Clearing data corresponding to the traffic bearer entity number of the unallocated bandwidth;

It is determined whether there is bandwidth. When there is no bandwidth, the data packet corresponding to the traffic bearer entity number of the unallocated bandwidth is marked with an error message, and the data packet marked with the error information is discarded.

In the above solution, the traffic bearer entity number is a TCONT number, or an LLID number.

In the above solution, the performing the clearing process on the data corresponding to the traffic bearer entity number of the unallocated bandwidth includes: reading the TM uplink export data control unit corresponding to the traffic bearer entity number of the unallocated bandwidth Data is discarded; the descriptor in the TM uplink egress data control unit corresponding to the unassigned bandwidth traffic bearer entity number is read and discarded; and the data packet corresponding to the descriptor in the data buffer unit is discarded. .

In the above solution, the method further includes: when there is bandwidth, sending a data packet corresponding to the traffic bearer entity number of the unallocated bandwidth.

The embodiment of the present invention further provides a TM uplink export data control unit, including a receiving module, a clearing module, and a sending module;

The receiving module is configured to receive a traffic bearer entity number of unallocated bandwidth;

The clearing module is configured to perform clearing processing on data corresponding to the traffic bearer entity number of the unallocated bandwidth;

The sending module is configured to send the traffic bearer entity number of the unallocated bandwidth.

In the above solution, the clearing module is further configured to: read data corresponding to the traffic bearer entity number of the unallocated bandwidth in the TM uplink egress data control unit, and discard the data; and read the TM uplink egress data control unit The traffic of the unallocated bandwidth carries the descriptor corresponding to the entity number and discards; and the data packet corresponding to the descriptor in the data buffer unit is discarded.

The embodiment of the invention further provides an ONU data processing device, comprising: a data buffer unit, TM uplink export data control unit, MAC unit, and CPU; wherein

a data cache unit configured to cache data for the TM;

The TM uplink egress data control unit is configured to receive a traffic bearer entity number of the unallocated bandwidth sent by the CPU, perform a clearing process on the data corresponding to the traffic bearer entity number of the unallocated bandwidth, and perform the unallocated bandwidth traffic. The bearer entity number is sent to the MAC unit;

The MAC unit is configured to determine whether there is bandwidth. When there is no bandwidth, the data packet corresponding to the traffic bearer entity number of the unallocated bandwidth is marked with an error message, and the data packet marked with the error information is discarded;

The CPU is configured to send the traffic bearer entity number of the unallocated bandwidth to the TM uplink egress data control unit.

The TM uplink export data control unit is any one of the above TM uplink export data control units.

In the foregoing solution, the MAC unit is further configured to: when there is a bandwidth, send a data packet corresponding to the traffic bearer entity number of the unallocated bandwidth.

The ONU data processing method and device, the data control unit, and the storage medium provided by the embodiment of the present invention receive the traffic bearer entity number of the unallocated bandwidth, and clear the data corresponding to the traffic bearer entity number of the unallocated bandwidth. Determining whether there is bandwidth, when there is no bandwidth, marking the error packet with the packet corresponding to the traffic bearer entity number of the unallocated bandwidth, and discarding the data packet marked with the error information; thus, the ONU can be randomly unplugged When the optical fiber is plugged in again, if the re-registered LLID number or TCONT number is inconsistent with the original, the residual data retained in the ONU can be cleared to ensure the correctness of the ONU data processing.

DRAWINGS

1 is a schematic flowchart of an implementation process of an ONU data processing method according to an embodiment of the present invention;

2 is a schematic structural diagram of a structure of an ONU data processing apparatus according to an embodiment of the present invention;

3 is a TM uplink export data control unit in an ONU data processing device according to an embodiment of the present invention; Schematic diagram of the composition.

detailed description

In the embodiment of the present invention, the traffic bearer entity number of the unallocated bandwidth is received, and the data corresponding to the traffic bearer entity number of the unallocated bandwidth is cleared; the bandwidth is determined, and when there is no bandwidth, The packet corresponding to the traffic bearer entity number of the unallocated bandwidth marks the error information, and discards the data packet marked with the error information.

Here, the receiving and performing the clearing process may be performed by the TM uplink egress data control unit in the ONU; the unassigned bandwidth traffic bearer entity number is from the CPU in the ONU; the determining, marking, and discarding operations may be performed by the MAC in the ONU The unit is completed, wherein the discarding means that the MAC unit completes the discarding process for the data that has been sent to itself; and, for the data corresponding to the unloaded bandwidth of the unassigned bandwidth that has not been sent to the MAC unit, the data may be controlled by the TM uplink egress data control unit. Discard directly.

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic flowchart of an ONU data processing method according to an embodiment of the present invention. As shown in FIG. 1 , an ONU data processing method according to an embodiment of the present invention includes the following steps:

Step 101: Receive a traffic bearer entity number of an unallocated bandwidth.

Step 102: Perform a clearing process on data corresponding to the traffic bearer entity number of the unallocated bandwidth.

This step can be performed by the TM uplink egress data control unit in the ONU; the unloaded bandwidth traffic bearer entity number is from the CPU in the ONU; wherein the traffic bearer entity number can be a TCONT number or an LLID number.

Here, the performing the clearing process on the data corresponding to the traffic bearer entity number of the unallocated bandwidth includes: reading data corresponding to the traffic bearer entity number of the unallocated bandwidth in the TM uplink egress data control unit, and discarding; Read TM upstream export data control unit The descriptor corresponding to the traffic bearer entity number of the unallocated bandwidth is discarded, and the data packet corresponding to the descriptor in the data buffer unit is discarded.

It is to be noted that before the TM uplink egress data control unit receives the traffic bearer entity number of the unallocated bandwidth sent by the CPU, the method further includes: the CPU monitoring the traffic bearer entity number in real time, and the traffic bearer entity number of the unallocated bandwidth Send to the TM uplink export data control unit.

For example, if the traffic bearer entity number is TCONT, the CPU monitors the current TCONT number to determine which TCONT numbers are valid and which TCONT numbers are discarded. Specifically, after the fiber is removed, the CPU monitors the re-registered TCONT. Whether the number is the same as the original TCONT number, so as to determine which TCONT numbers are valid and which TCONT numbers are discarded, that is, if the TCONT number after re-registration is inconsistent with the original TCONT number, the new registration is currently used. The TCONT number, while the original TCONT number is no longer allocated bandwidth, the TCONT number of the unallocated bandwidth is discarded. The CPU sends the TCONT number of the unallocated bandwidth to the TM uplink export data control unit;

Correspondingly, the TM uplink egress data control unit receives the TCONT number of the unallocated bandwidth, and the TM uplink egress data control unit has the TCONT data storage space and the TCONT descriptor storage space; after receiving the TCONT number of the unallocated bandwidth, the read storage Data corresponding to the TCONT number of the unallocated bandwidth in the TCONT data storage space is discarded, and the descriptor corresponding to the TCONT number of the unallocated bandwidth stored in the TCONT descriptor storage space is read and discarded; and, The data packets corresponding to the above descriptors stored in the data buffer unit are also discarded.

Step 103: Determine whether there is bandwidth, and if there is no bandwidth, mark the error packet with the data packet corresponding to the traffic bearer entity number of the unallocated bandwidth, and discard the data packet marked with the error information;

The judgment, marking and discarding operations of this step can be completed by the MAC unit;

Here, the method further includes: when there is bandwidth, transmitting the traffic with the unallocated bandwidth The data packet corresponding to the entity number; wherein the sending data packet operation can be completed by the MAC unit.

In practical applications, if the optical fiber is unplugged during data transmission, it may happen that part of the data packet has arrived at the MAC unit, and the MAC unit receives the TCONT number of the unallocated bandwidth sent by the TM uplink egress data control unit, for the MAC that has arrived. The data packet corresponding to the TCONT number of the unallocated bandwidth of the unit, the MAC unit will process according to its own situation; specifically, the MAC unit has a register for statistical bandwidth usage, and judges whether there is still bandwidth according to the data stored in the register; When there is bandwidth, the data packet corresponding to the TCONT number of the unallocated bandwidth is continuously transmitted. When there is no bandwidth, the data packet corresponding to the TCONT number of the unallocated bandwidth is first marked with an error message, and then discarded.

Embodiments of the present invention also provide a computer readable storage medium including a set of instructions for performing the method as shown in FIG.

2 is a schematic structural diagram of an ONU data processing apparatus according to an embodiment of the present invention. As shown in FIG. 2, the ONU data processing apparatus includes: a data buffer unit 201, a TM uplink egress data control unit 202, a MAC unit 203, and a CPU 204; among them,

The data cache unit 201 is configured to cache data for the TM;

The TM uplink egress data control unit 202 is configured to receive the traffic bearer entity number of the unallocated bandwidth sent by the CPU 204, perform clear processing on the data corresponding to the traffic bearer entity number of the unallocated bandwidth, and clear the unallocated bandwidth. The traffic bearer entity number is sent to the MAC unit 203;

The MAC unit 203 is configured to determine whether there is bandwidth. When there is no bandwidth, the data packet corresponding to the traffic bearer entity number of the unallocated bandwidth is marked with an error message, and the data packet marked with the error information is discarded;

Here, the MAC unit 203 can determine whether there is still bandwidth according to data stored in a register having a function of counting bandwidth usage.

The CPU 204 is configured to send the traffic bearer entity number of the unallocated bandwidth to the TM uplink exit Data control unit 202.

Further, the MAC unit 203 is further configured to: when there is bandwidth, send a data packet corresponding to the traffic bearer entity number of the unallocated bandwidth.

In practical applications, it is assumed that the traffic bearer entity number is the TCONT number. When the randomly unplugged fiber is plugged in again, the CPU 204 monitors whether the re-registered TCONT number is consistent with the original TCONT number, thereby determining which TCONT numbers are valid. Which TCONT numbers are discarded, that is, if the re-registered TCONT number is inconsistent with the original, the newly registered TCONT number is currently used, and the original TCONT number is no longer allocated bandwidth, and the bandwidth is not allocated. The TCONT number is discarded. Then, the CPU 204 monitors all the TCONT numbers, and obtains the TCONT number of the unallocated bandwidth and sends it to the TM uplink egress data control unit 202. The TM uplink egress data control unit 202 has the TCONT data storage space. And the TCONT descriptor storage space; after receiving the TCONT number of the unallocated bandwidth, the data corresponding to the TCONT number of the unallocated bandwidth stored in the TCONT data storage space is read and discarded, and the TCONT descriptor is read and stored. a descriptor corresponding to the TCONT number of the unallocated bandwidth in the storage space and discarded; and will be stored in the data cache unit 201 and Corresponding packet descriptor also discarded.

At the same time, the TM uplink egress data control unit 202 also transmits the TCONT number of the unallocated bandwidth to the MAC unit 203. For the data packet corresponding to the TCONT number of the unallocated bandwidth that the MAC unit 203 has received, the MAC unit 203 will according to itself. The case is processed; specifically, the MAC unit 203 has a register for counting the bandwidth usage function, and the MAC unit 203 can determine whether there is still bandwidth according to the data stored in the own register; the statistical bandwidth usage stored in the specific register, the MAC unit The 203 can be updated in real time based on its own internal clock. When there is bandwidth, the data packet corresponding to the TCONT number of the unallocated bandwidth is continuously sent out; when there is no bandwidth, the data packet corresponding to the TCONT number of the unallocated bandwidth is marked, the error information is marked, and the error is discarded. Marking the packet of the error message; thus causing the ONU to appear randomly When the unplugged fiber is plugged in again, the CPU 204 monitors whether the re-registered LLID number or TCONT number is consistent with the original LLID number or TCONT number. If the re-registered LLID number or TCONT number is inconsistent with the original, it can clear the stay in the internal The residual data ensures the correctness of the ONU data processing.

FIG. 3 is a schematic structural diagram of a structure of a TM uplink data control unit in an ONU data processing apparatus according to an embodiment of the present invention. As shown in FIG. 3, the composition of the uplink uplink data control unit of the embodiment of the present invention includes: a receiving module 301, and a clearing module 302. And sending module 303; wherein

The receiving module 301 is configured to receive a traffic bearer entity number of unallocated bandwidth;

The clearing module 302 is configured to perform clear processing on data corresponding to the traffic bearer entity number of the unallocated bandwidth;

The sending module 303 is configured to send the traffic bearer entity number of the unallocated bandwidth.

Here, the traffic bearer entity number may be a TCONT number or an LLID number.

Further, the clearing module 302 is further configured to: read data corresponding to the traffic bearer entity number of the unallocated bandwidth in the TM uplink egress data control unit, and discard; and read the TM uplink egress data control unit and the The traffic of the unallocated bandwidth carries the descriptor corresponding to the entity number and discards, and discards the data packet corresponding to the descriptor in the data buffer unit.

In practical applications, the functions of the receiving module 301, the clearing module 302, and the transmitting module 303 may be by a central processing unit (CPU), or a microprocessor (MPU), or a digital signal processor located on the TM upstream egress data control unit. (DSP), or programmable gate array (FPGA) implementation.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention is directed to a method, apparatus (system), and computer program in accordance with an embodiment of the present invention The flow chart and/or block diagram of the product is described. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above is only an embodiment of the embodiments of the present invention, and it should be noted that those skilled in the art can make some improvements and refinements without departing from the principles of the embodiments of the present invention. Retouching should also be considered as the scope of protection of the embodiments of the present invention.

Industrial applicability

The embodiment of the present invention receives the traffic bearer entity number of the unallocated bandwidth, and performs clear processing on the data corresponding to the traffic bearer entity number of the unallocated bandwidth; determines whether there is bandwidth, and when there is no bandwidth, the pair does not The packet corresponding to the traffic bearer entity number of the allocated bandwidth marks the error information, and discards the data packet marked with the error information; thus, the ONU can re-register the LLID when the randomly unplugged fiber is inserted again. Number or TCONT number and Inconsistent, it can clear the residual data that is stuck inside the ONU, and ensure the correctness of the ONU data processing.

Claims

An optical network unit ONU data processing method, the method comprising:

Receiving a traffic bearer entity number of unallocated bandwidth;

Clearing data corresponding to the traffic bearer entity number of the unallocated bandwidth;

It is determined whether there is bandwidth. When there is no bandwidth, the data packet corresponding to the traffic bearer entity number of the unallocated bandwidth is marked with an error message, and the data packet marked with the error information is discarded.
The method of claim 1, wherein the traffic bearer entity number is a transport container TCONT number, or a logical link identifier LLID number.
The method according to claim 1 or 2, wherein the performing the clearing process on the data corresponding to the traffic bearer entity number of the unallocated bandwidth comprises:

Reading data in the traffic management TM uplink egress data control unit corresponding to the unassigned bandwidth traffic bearer entity number and discarding the data;

Reading a descriptor in the TM uplink export data control unit corresponding to the traffic bearer entity number of the unallocated bandwidth and discarding;

The data packet corresponding to the descriptor in the data buffer unit is discarded.
The method of claim 1, wherein the method further comprises transmitting a data packet corresponding to the traffic bearer entity number of the unallocated bandwidth when there is bandwidth.
A TM uplink export data control unit, the TM uplink export data control unit includes a receiving module, a clearing module, and a sending module;

The receiving module is configured to receive a traffic bearer entity number of unallocated bandwidth;

The clearing module is configured to perform clearing processing on data corresponding to the traffic bearer entity number of the unallocated bandwidth;

The sending module is configured to send the traffic bearer entity number of the unallocated bandwidth.
The TM uplink egress data control unit according to claim 5, wherein said stream The quantity carrying entity number is the transport container TCONT number or the logical link identifier LLID number.
The TM uplink egress data control unit according to claim 5 or 6, wherein the clearing module is further configured to read data corresponding to the traffic bearer entity number of the unallocated bandwidth in the TM uplink egress data control unit and Discard;

Reading a descriptor corresponding to the traffic bearer entity number of the unallocated bandwidth in the TM uplink export data control unit, and discarding;

The data packet corresponding to the descriptor in the data buffer unit is discarded.
An ONU data processing device, the device comprising: a data buffer unit, a TM uplink egress data control unit, a MAC unit, and a CPU;

a data cache unit configured to cache data for the TM;

The TM uplink egress data control unit is configured to receive a traffic bearer entity number of the unallocated bandwidth sent by the CPU, and configured to perform a clearing process on the data corresponding to the traffic bearer entity number of the unallocated bandwidth, and configured to: The traffic bearer entity number of the unallocated bandwidth is sent to the MAC unit;

The MAC unit is configured to determine whether there is bandwidth. When there is no bandwidth, the data packet corresponding to the traffic bearer entity number of the unallocated bandwidth is marked with an error message, and the data packet marked with the error information is discarded;

The CPU is configured to send the traffic bearer entity number of the unallocated bandwidth to the TM uplink egress data control unit.
The apparatus according to claim 8, wherein said TM uplink data control unit is the TM uplink data control unit according to any one of claims 5 to 7.
The apparatus according to claim 8 or 9, wherein the MAC unit is further configured to, when there is bandwidth, transmit a data packet corresponding to the traffic bearer entity number of the unallocated bandwidth.
A computer readable storage medium comprising a set of instructions for performing the method of any one of claims 1 to 4.