WO2010148708A1

WO2010148708A1 - Method and device for implementing the recombination for ethernet packets in a gigabit passive optical network (gpon) system

Info

Publication number: WO2010148708A1
Application number: PCT/CN2010/071674
Authority: WO
Inventors: 吕舒予; 娄本刚
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-11-10
Filing date: 2010-04-09
Publication date: 2010-12-29
Also published as: CN102056029B; CN102056029A

Abstract

A method for implementing the recombination for Ethernet packets in a GPON system is disclosed by the present invention. The method includes a process to recombine GPON Encapsulation Method (GEM) frames, which have two port identifiers and are sent alternately. Said process includes storing the middle variables of the GEM frames to be recombined in a recombination table, the GEM frames to be recombined have two port identifiers and are sent alternately. A device for implementing the recombination for Ethernet packets in a GPON system is disclosed by the present invention accordingly. By using a recombination table to store the middle variables of the GEM frames that have two different port identifiers in the present invention, the GEM frames having 64K port identifiers are recombined with the least resource, and the data with not more than two different port identifiers are permitted to be sent alternately. Further more, moreover, by setting the middle value for the Cyclic Redundancy Check (CRC) in present invention, the middle process check is performed for the recombination of the payload data, and the reliability of the packet recombination is improved.

Description

GP system, Taiyuan, reorganization, method and device

In this area, Hugh involved thousands of methods (Gg North-C North e PO, GPO) in the Taiyuan reorganization method and device. Background

The GPO system consists of three parts: the terminal (O T), the light distribution (O ) and the optical same (O ). O uses optical devices to connect O T and O. O T and O with GPO Ta o Co vege ce (GTC) format, GE is effective for each GTC

, can contain any number of GE.

In the GGPO system, GE 1 is shown. GE contains 8, indicated by 16 ( ayoad e gh d o , , 16

( o ), 3 of the US-America indication ( ayoadType dcao T ), 16 ( ooco Typ ) and 13 error control ( eadE o Co o E ). P is indicated by the sheep to the sheep. Since P has only 16 bits, it can indicate up to 64. If the number of users is greater than , then it must be divided into less than 64 pieces. Po does not provide 64 different in each of the PO, to each. The content of the PT and the way of the phase, 000, the number of users is not 001, is 10, GE OA (Ope a o Ad a o a d a e a ce, operation management and ) is not 101, GE OA is Yu , . EC provides and corrects the error.

In the GPO system that supports Gbp in the downlink and 2.5Gbp in the uplink, Po Solid is 0 (64 - ). In the direction of the user interface (e ewo e ac , ) to each interface (Sevce ode e ac , S), the number of users is encapsulated into GE.

It is often necessary to insert GE before breaking. The number of users can be divided into multiple pieces, and the PT indicates whether or not it is broken. In the opposite direction, you need to reorganize the GE to complete the summer of the same. The method of reorganization is to remove GE and extract the near-to-one. In the system that only supported Po within 4, the reorganization is Po, allowing the same number of Pos. The mediation of reorganization of Po storage reorganization. The method of reorganization supports the 64 Po GGPO system. It is not ideal. Supporting 64 Po reorganization consumes a large amount of storage resources, which is a rabbit. Content

The main wood to be solved is to provide a method and device for reorganization of the Ethernet in the GPO system, and to store resources.

To solve the above-mentioned wood, this method provides the same method of reorganization of the same-party GPO system, reorganization and reorganization.

The same GE of the same, with the same GE reorganization.

The degree of pre-recombination of GE in the same recombination is valid.

The same GE reorganization

Extract the GE, the indication, the indication and the Dutch indication. The recombination in the reorganization and the reorganization of the recombinant recombination table are valid, and the former GE is the first, update reorganization

Effective, and the other item is effective.

Whether the former GE is the same or not, the valid former GE is the same, then the information is completed, the load is reorganized, and the reorganization is completed. Otherwise, the former GE is the other.

All are valid, the same information of the former GE, complete the reorganization, update and reorganization.

The update reorganization includes

If the former GE's Homei indication 0 is used, the former GE information will be valid.

Former GE's Dutch-Indicating 1, will be effective indications.

The middle and the same

The same GE reorganization near the reorganization of GE

The test results are stored in the reorganization.

In the GP system, the device reorganized by Taitong is in the middle of the recombined storage and recombined G.

The same GE reorganization.

Device reorganization of the storage of the same reorganization of GE's

, the degree of reorganization before and whether it is effective.

Device recombination, GE and charge recombination, wherein the GE, for extracting GE, , instructions, Dutch instructions

The load is recombined, and the recombination is updated in the same recombination as described in the root and the recombination.

The reorganization of the load is close to the validity of the reorganization table. In the case of the pre-determination of GE, the reorganization and reorganization are effective, and the other elements are effective.

Whether the former GE is the same, the effective former GE is the same, the information is described, the reorganization is completed, and the reorganization is completed. Otherwise, the former GE is the first introduction, update and reorganization.

In the same valid information, the former GE's same information, complete the reorganization, update reorganization.

The load recombination, near the previous GE's Homei indication 0, will be effective in the former GE information and whether the indication of the validity of the previous GE and the previous GE's Homei indication 1 will be valid.

The reorganization of the device is the same as the near-neighbor, the device is near, and the GE in the reorganization

The test results are stored in the reorganization.

The beneficial effect of this is

1) This book reorganizes and stores different GE's middle and the same, while the GE reorganizes with the least resources of 64, allowing not 2 different numbers.

The reorganization of the same value in the near-CRC, which improves the reliability of the reorganization. Description

GE indicates

2 means of the device

3 The power of the device is mapped to the GE's schematic flow. Hugh way

The following break mode is combined with this step. In combination with the requirements of the GPO, at least 2 GE reorganization registers are required to support the use of the same emergency, unless O has additional capabilities, no OT does not send more than 2 users to the same network. This also requires OT. There are at least 2 GE reorganizations to support the same emergency, unless the OT has additional capabilities, O does not count the number of users above 2. Therefore, this is in the G GPO system, supporting GE's same, supporting up to 2 Po of GE.

5 2 This GPO system is a device that is reorganized by Taitong

The way of the representation, in the same GE reorganization with Po, its reorganization, in the same GE of the storage of the reorganized Po.

The middle of the device includes the Po0 of the recombined G, the degree of pre-recombination, and whether it is valid. 1 book

Reorganization Address capacity

0 Others Indicates the address stored before the Po CRC. The other is recombined. The other address is stored before the Po CRC is stored.

For this device, near GE and Dutch recombination, GE Road is used to extract GE's

o and PT 3 of this device, its force 8 load recombination path is used for root and recombination in the same reorganization and reorganization.

The recombination of the device is close to the validity of the reorganization table. If it is, then the pre-GE is the first mediation. If the reorganization and reorganization are effective, the other term element, the effective Po pre-GE Po is the same, if the same Then, the information is released, the load reorganization is completed, and the update and reorganization are not the same. Then, the former GE is judged to be another mediation, and the update and reorganization are effective. The same information of the former GE Po is completed, and the recombination of the device is completed. Each, the Po in the Po of the GE is different, then GE, the above refers to the contents of the address 0 and 1 of the reorganization table, the entire content of the address, if the effective indication is high, then valid, otherwise yuan.

In this device, if the charge recombines PT 0 close to the former GE, the indication of whether the previous GE information is valid or not will be valid before the PT 1 of the GE. Instructions.

In the device, the same as the nearest CRC (CRC), the near CRC, and the GE CRC in the recombination store the results of the test in the reorganization. Each of the devices, CRC

In the reorganization of the CRC, if the result of the reorganization is completed, it is often, and if the result is not, then it is marked.

This GP system is a method of reorganization of Taitong, in the same way that it has the same GE reorganization of Po,

Reorganize and store the recombined Po of the same GE in the same.

In this method, the pre-Po recombination degree of GE in the same recombination is effective.

For this method, the same GE recombination with Po extracts GE, Po

P and PT and the reorganization of the reorganization in the reorganization.

In the method, and the reorganization in the reorganization, the reorganization of the reorganization is performed to perform the following operations. The validity of the reorganization table is determined. If all, the pre-GE is the mediator. If the reorganization is effective, the other entity, the effective Po Whether the Po of the former GE is the same, if the same, the table information, the completion of the reorganization, the update is not the same, then the pre-GE is the other reference, the update and reorganization are valid, the same information of the former GE Po, complete the load Group, update reorganization.

In this method, where the PT 0 of the pre-reorganization GE is updated, whether the indication of whether the validity of the former GE is valid or not is the PT 1 of the former GE, and whether it is valid. Instructions.

In the method, wherein the CRC in the same CRC, the GE CRC in the near recombination with the same PE recombination stores the result in the test.

4 The flow of this method is another way, 4, the method includes steps

It needs to be reorganized before, and the 32 bits of the CRC are all 1 and the others are all 0.

Step 402: Receiving GE, GE, extracting Po,

P and 矣 indicate information such as PT.

Step 404 Reorganize the table, and view valid.

Step 406 is valid whether it is 0, if it is, it means that all, GE is the first medium, special step 408, otherwise special step 418 step 408 GE CR

Step 410 will be stored in the same address in the new memory.

Step 412: Is the PT, that is, whether the PT is 1, and if not, in the special step 414, if the reorganization is completed, the special step 416 is completed.

Step 414 updates the content, reorganizes the reorganized, CRC, etc. information, effective indication 1, step 402

Step 4 6 In the reorganization, the reorganization is completed, the process is wrong, error indication, 402

Step 418: Whether it is only 0, is special step 420, otherwise special step 424

Step 420: If the Po of the valid Po GE is true, if it is not, the GE is the first mediation, and the special step 408 is That means GE is not the first, special step 422

Step 422 is taken out and stored in the same address as the storage address in the same address, the same as the CRC, the special step 412

Step 424 is valid, in which the Po of the Po GE is caused, if it is, the GE is not the first medium, if the special step 422 is not, the GE is the same third GE, the special step 426

Step 426 is taken out, the process.

The above is a detailed description of the steps taken in conjunction with Hugh. Ordinary wood in the field of wood has not been said. Under the premise of this, some sheep can be made or replaced, and the vision is based on the solid.

Claims

Claim

1. The method of reorganization of the same GP system in the same GP system, the method is to reorganize and store the same GE of the same reorganization, and have the same GE reorganization.

2. A method as claimed, characterized in that the intermediate includes the degree of recombination of the GE in the reorganization and whether it is valid.

3. The method of claim 2, wherein the

The same GE reorganization

Extract GE's , the indications, the indications, and the Dutch indications

The recombination in the reorganization and the reorganization in the reorganization.

4. The method of claim 3, wherein the recombination in the reorganization and the reorganization is to update the reorganization

The validity of the reorganization table, then, the judgment of the former GE is the first, update and reorganization

Effective, and the other item is effective.

Whether the former GE is the same or not, the valid former GE is the same, then the information is completed, the load is reorganized, and the reorganization is completed. Otherwise, the former GE is the other reference, and the update and reorganization are effective. The same information of the former GE is the same. , complete the reorganization of the load, update the reorganization.

5. The method of claim 4, wherein the updating and reorganizing

Former GE’s Homei’s indication 0, the former GE’s information Effectiveness of effective indication

Former GE's Dutch-Indicating 1, will be effective indications.

6. The method of any of clauses 2 to 5, wherein the method of storing the GE residual in the same GE recombination near recombination is stored in the recombination.

7. In the GP system, the device reorganized by Taitong is characterized by the same GE reorganization that is installed in the same GE of the reorganization and reorganization.

8. The apparatus of claim 7, characterized in that the apparatus is reconfigurably stored in the same recombination of GE, the pre-recombination degree and whether it is valid.

9. The apparatus of claim 8 characterized in that the apparatus is reorganized, GE and reconstituted,

Said GE, in extracting GE, said

, instructions, Holland and the United States

10. The device of claim 9 wherein:

Whether the former GE is the same, the same as the former GE, the information, the completion of the reorganization, the update and reorganization Otherwise, before the judgment GE is another introduction, update and reorganization

11. The apparatus of claim 10, characterized in that

12. The apparatus of any one of clauses 8 to 11, wherein the device is reconfigurably stored in the same

The device is near, in the reorganization of GE

The test results are stored in the reorganization.