CN114339488B - Method and device for protecting Ethernet service in optical transmission network - Google Patents
Method and device for protecting Ethernet service in optical transmission network Download PDFInfo
- Publication number
- CN114339488B CN114339488B CN202111622964.6A CN202111622964A CN114339488B CN 114339488 B CN114339488 B CN 114339488B CN 202111622964 A CN202111622964 A CN 202111622964A CN 114339488 B CN114339488 B CN 114339488B
- Authority
- CN
- China
- Prior art keywords
- osu
- ethernet
- data block
- unit
- message
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The application provides a method and a device for protecting Ethernet service in an optical transmission network. The method comprises the following steps: receiving an Ethernet message; if the Ethernet message is determined to be a protocol message related to an aggregation link, the Ethernet message is packaged into a first OSU data block; performing OSU cross processing on the first OSU data block; performing LAG protocol processing on the first OSU data block after OSU cross processing, and sending a processing result in a broadcasting mode through OSU cross processing to perform Ethernet processing; if the Ethernet message is determined to be a service message, the Ethernet message is packaged into a second OSU data block, and OSU cross processing is carried out on the second OSU data block; and carrying out aggregation treatment on the second OSU data block after OSU cross treatment, and sending the second OSU data block to an OTN unit. The method can realize the protection of the Ethernet service in the optical transmission network on the premise of low cost.
Description
Technical Field
The present application relates to the field of communication transmission networks, and in particular, to a method and an apparatus for protecting ethernet service in an optical transmission network.
Background
In the current mainstream device model, after ethernet service must be processed through ethernet switching, an ODUk/optical service unit (Optical Service Unit, OSU) cross unit is further transmitted in an optical transport network (Optical Transport Network, OTN)/M-OTN network through interlayer adaptation, so that protection of ethernet service by the current OTN/M-OTN device is implemented by introducing an ethernet switching unit.
In the implementation process of the prior art, the inventor finds that the mode of introducing the Ethernet switching unit to realize Ethernet service protection can increase service delay and increase the complexity of system implementation.
Disclosure of Invention
In view of the above, the present application provides a method and apparatus for protecting ethernet service in an optical transmission network, which can realize protection of ethernet service in an optical transmission network under the premise of low cost.
In order to solve the technical problems, the technical scheme of the application is realized as follows:
in one embodiment, there is provided an ethernet traffic protection device in an optical transport network, the device comprising: the system comprises an Ethernet processing unit, a first OSU adapting unit, a second OSU adapting unit, an OSU crossing unit, a LAG protocol processing unit and an OSU aggregation unit;
the ethernet processing unit is configured to receive an ethernet packet, and if it is determined that the ethernet packet is a service packet, send the ethernet packet to the second OSU adaptation unit; if the Ethernet message is determined to be a protocol message related to an aggregation link, the Ethernet message is sent to a first OSU adaptation unit;
the first OSU adapting unit is configured to encapsulate the ethernet packet into a first OSU data block;
the second OSU adapting unit is configured to encapsulate the ethernet packet into a second OSU data block;
the OSU crossing unit is used for sending OSU crossing processing of the first OSU data block to the LAG protocol processing unit; sending the second OSU data block to an OSU aggregation unit through OSU crossing processing;
the LAG protocol processing unit is used for sending the message content corresponding to the first OSU data block subjected to OSU cross processing to the Ethernet processing unit in a broadcasting mode through the OSU cross unit;
the OSU aggregation unit is configured to aggregate the second OSU data block subjected to OSU cross processing, and send the second OSU data block to the OTN unit.
In another embodiment, there is provided a method of ethernet traffic protection in an optical transport network, the method comprising:
receiving an Ethernet message;
if the Ethernet message is determined to be a protocol message related to an aggregation link, the Ethernet message is packaged into a first OSU data block; performing OSU cross processing on the first OSU data block; performing LAG protocol processing on the first OSU data block after OSU cross processing, and sending a processing result in a broadcasting mode through OSU cross processing to perform Ethernet processing;
if the Ethernet message is determined to be a service message, the Ethernet message is packaged into a second OSU data block, and OSU cross processing is carried out on the second OSU data block; and carrying out aggregation treatment on the second OSU data block after OSU cross treatment, and sending the second OSU data block to the OTN unit.
As can be seen from the above technical solutions, in the above embodiments, in the ethernet service protection device of an optical transmission network, not only the service packet is encapsulated into an OSU data block, but also the protocol packet related to the aggregation link is also independently encapsulated into an OSU data block, so as to perform LAG protocol processing, and thus, the protection of the ethernet service in the optical transmission network can be implemented under the premise of low cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural diagram of an ethernet service protection device in an optical transport network according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a frame structure of an OSU;
fig. 3 is a schematic diagram of an ethernet service protection flow in an optical transport network according to an embodiment of the present application;
fig. 4 is a schematic diagram of an ethernet service protection procedure in an optical transport network according to another embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical scheme of the application is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
An embodiment of the present application provides an ethernet service protection device in an optical transport network, referring to fig. 1, fig. 1 is a schematic structural diagram of the ethernet service protection device in the optical transport network in the embodiment of the present application. The device comprises: the system comprises an Ethernet processing unit, a first OSU adapting unit, a second OSU adapting unit, an OSU crossing unit, a Link Aggregation (LAG) protocol processing unit and an OSU Aggregation unit;
the ethernet processing unit is configured to receive an ethernet packet, and if it is determined that the ethernet packet is a service packet, send the ethernet packet to the second OSU adaptation unit; if the Ethernet message is determined to be a protocol message related to an aggregation link, the Ethernet message is sent to a first OSU adaptation unit;
the first OSU adapting unit is configured to encapsulate the ethernet packet into a first OSU data block;
the second OSU adapting unit is configured to encapsulate the ethernet packet into a second OSU data block;
the OSU crossing unit is used for sending OSU crossing processing of the first OSU data block to the LAG protocol processing unit; sending the second OSU data block to an OSU aggregation unit through OSU crossing processing;
the LAG protocol processing unit is used for sending the message content corresponding to the first OSU data block subjected to OSU cross processing to the Ethernet processing unit in a broadcasting mode through the OSU cross unit;
the OSU aggregation unit is configured to aggregate the second OSU data block subjected to OSU cross processing, and send the second OSU data block to the OTN unit.
In the embodiment of the application, the Ethernet switching unit does not exist in the Ethernet service protection device in the optical transmission network, so that the service message is packaged into the OSU data block, and the protocol message related to the aggregation link is also independently packaged into the OSU data block for LAG protocol processing, thereby realizing the protection of the Ethernet service in the optical transmission network on the premise of not adding the Ethernet switching unit.
Because the Ethernet switching unit is not added, the processing time delay is not additionally introduced, and the complexity and the power consumption of the equipment are not increased; if the exchange unit is between boards, the D-LAG protection of the cross board card cannot be realized through the Ethernet unit; the implementation of the application is not limited to the application scene of the cross board card, so that the Ethernet service in the optical transmission network can be protected on the premise of low cost in the embodiment of the application.
In specific implementation, sending the OSU subjected to the designated aggregation to an OSU aggregation unit for processing, and then sending the OSU subjected to the designated aggregation to an OTN unit for processing; for the OSU of the unspecified aggregation, the OSU is directly sent to the OTN unit for processing.
When the embodiment of the application is specifically implemented, the second OSU adaptation unit can use only the designated code pattern combination without using all the code pattern combinations in the 66b combination when packaging the OSU data block; the first OSU adaptation unit may use all pattern combinations in the 66b combination, or may use only the specified pattern combination to perform the encapsulation of the OSU data block;
the specified code pattern combination can separate more than two Ethernet messages in 256B code blocks, namely, the situation that the end of the last Ethernet message and the beginning of the next Ethernet message cannot occur in the 256B code blocks.
The same 256B code block (4 66B codes) comes from the same Ethernet message, so that the subsequent aggregation of OSU based on the 256B code block is convenient.
Referring to table 1, table 1 is a content corresponding to 256b 4-bit control information transcoding map.
TABLE 1
The total of 16 66b combinations in table 1, the pattern combinations specified in the examples of the present application include 7 of them, specifically: DDDD, IIII, TIII, SDDD, DTII, DDTI and DDDT.
Frame structure of encapsulated OSU referring to fig. 2, fig. 2 is a schematic diagram of the frame structure of OSU. Which is 192 bytes in length. Wherein bytes 1 to 7 are overhead areas and bytes 8 to 192 are payload areas.
The OSU overhead includes OSU generic overhead and OSU mapping overhead.
Branch port number (TPN), 12 bits long, at the 1 st byte 3 to 8 bits and the 2 nd byte 1 to 6 bits overhead position, for identifying branch ports, may represent a range of 0 to 4095, with an effective value of 1 to 4000
The Frame Type (FT) is 3 bits in length, and bits 7 to 8 of the 2 nd byte and bit 1 of the 3 rd byte are used to identify the frame type.
In OSU technology, a method of ethernet mapping is defined, ethernet traffic is demapped into MAC frames, and the MAC frames (excluding the preamble, SFD and IPG) are 64b/66b encoded. The 64b/66b code is then converted into 256b/257b,66b code streams, and the 66b IDLE code blocks are inserted to achieve fast transmission of 66b code blocks into 257b code blocks, with 66b IDLE code blocks inserted only in the frame gaps. When the OSU frame completes the mapping of the current MAC frame but does not fill the OSU frame payload area and the next MAC frame has not been received, the insertion 66b of the IDLE code block after the T code block corresponding to the current MAC frame is allowed to perform 257b transcoding.
In the embodiment of the application, only 7 code pattern combinations are selected for packaging, and the packaging format and content are not changed.
If the second OSU adaptation unit uses the 7 code types to package the OSU data blocks, the OSU aggregation unit is specifically configured to perform aggregation processing on the second OSU data blocks, and the method may be executed by the following steps:
analyzing the second OSU data block to obtain 66b combinations, and deleting IIII combinations in the obtained 66b combinations;
since all the IIII combinations are IDLE, the erasure process, that is, erasure of the invalid code combination is performed directly.
Storing the effective code combinations into a cache, namely storing the rest code combinations into the cache;
when acquiring the OSU data blocks of the designated aggregation, if the last block of 66b combination is detected to be an I block or a T block, determining that the Ethernet message corresponding to the current code block is ended, and generating a third OSU data block, namely OSU regeneration.
In the embodiment of the application, when the LAG protocol processing unit processes the first OSU data block, the message content corresponding to the first OSU data block is obtained as follows: and a message sent through the Ethernet port or information of the port is notified.
Wherein the port information, such as the intended MAC address, VLAN information, etc., is notified.
The LAG protocol processing unit is specifically configured to encapsulate the message content corresponding to the first OSU data block into a third OSU data block according to the message content corresponding to the first OSU data block when sending the message content corresponding to the first OSU data block to the ethernet processing unit in a broadcasting manner through an intersecting OSU, and send the third OSU data block to the OSU intersecting unit;
the OSU cross unit is further configured to perform OSU cross processing on the third OSU data block, and broadcast and send the third OSU data block to the second OSU adaptation unit;
the second OSU adapting unit is further configured to parse the third OSU data block that is subjected to OSU cross processing to generate an ethernet packet, and send the ethernet packet to the ethernet processing unit;
the ethernet processing unit is further configured to, if it is determined that the ethernet packet is a packet that needs to be processed by the unit, perform corresponding processing on the ethernet packet; otherwise, discarding the Ethernet message.
In the embodiment of the application, the OSU sent by the OTN unit is also received, and the specific processing is as follows:
the OSU cross unit is further configured to perform cross processing and broadcast the fourth OSU data block sent by the OTN unit to the second OSU adaptation unit when the fourth OSU data block is received;
the second OSU adapting unit is further configured to decapsulate the fourth OSU data block to generate an ethernet packet, and send the ethernet packet to the ethernet processing unit;
the ethernet processing unit is further configured to, if it is determined that the ethernet packet is a packet that needs to be processed by the unit, perform corresponding processing on the ethernet packet; otherwise, discarding the Ethernet message.
The units of the above embodiments may be integrated or may be separately deployed; can be combined into one unit or further split into a plurality of sub-units.
The following describes the ethernet service protection procedure in the optical transport network in detail with reference to the accompanying drawings. . Referring to fig. 3, fig. 3 is a schematic diagram of an ethernet service protection procedure in an optical transport network according to an embodiment of the present application. The method comprises the following specific steps:
step 301, an ethernet message is received.
Step 302, if it is determined that the ethernet packet is a protocol packet related to an aggregation link, the ethernet packet is encapsulated into a first OSU data block.
And 303, performing OSU cross processing on the first OSU data block.
And step 304, performing LAG protocol processing on the first OSU data block after OSU cross processing, and sending the processing result in a broadcasting mode through OSU cross processing to perform Ethernet processing. The present flow is ended.
In this step, when the processing result is sent in a broadcast manner through OSU cross processing to perform ethernet processing, the method specifically includes:
packaging the processing result into a third OSU data block, and performing OSU cross processing broadcast transmission; wherein, the processing result is: a message sent through the Ethernet port, or information of the port is notified;
analyzing each third OSU data block which is sent by broadcasting and is subjected to OSU cross processing, and generating an Ethernet message;
if the Ethernet message is determined to be the message to be processed, the Ethernet message is correspondingly processed; otherwise, discarding the Ethernet message.
In specific implementation, the plurality of ethernet processing units each receive a corresponding ethernet message, each ethernet processing unit determines whether the ethernet message is a message to be processed by the unit, if so, performs corresponding processing, such as forwarding the ethernet message through a corresponding port, performing relevant configuration on information of the corresponding port, and the like; if not, the Ethernet message is directly discarded.
And step 305, if it is determined that the ethernet packet is a service packet, the ethernet packet is encapsulated into a second OSU data block.
In the step, when the Ethernet message is encapsulated as a second OSU data block, the Ethernet message is encapsulated through a designated code pattern; wherein the specified pattern can separate more than two ethernet messages at 256B code blocks.
The specific packaging is the same as the existing implementation and will not be described in detail here.
And 306, performing OSU cross processing on the second OSU data block.
And step 307, performing aggregation processing on the second OSU data block after the OSU cross processing, and sending the second OSU data block to the OTN unit.
If the specified code pattern is used for packaging, the specific step of performing aggregation processing on the second OSU data block after OSU cross processing includes:
parsing the second OSU data block acquisition 66b combination;
deleting the IIII combination in the obtained 66b combination, and storing the effective code into a cache;
when acquiring the OSU data blocks of the designated aggregation, if the last block of 66b combination is detected to be an I block or a T block, determining that the Ethernet message corresponding to the current code block is ended, and generating a third OSU data block, namely OSU regeneration.
Wherein the specified pattern comprises: DDDD, IIII, TIII, SDDD, DTII, DDTI and DDDT.
In the embodiment of the present application, the processing procedure of sending an OSU data block to the ethernet direction based on the OTN unit is shown in fig. 4, and fig. 4 is a schematic diagram of an ethernet service protection flow in the optical transport network in another embodiment of the present application. The method comprises the following specific steps:
step 401, when receiving the fourth OSU data block sent by the OTN unit, performing OSU cross processing and broadcasting sending.
And step 402, analyzing each fourth OSU data block which is transmitted in a broadcasting way and is subjected to OSU cross processing, and generating an Ethernet message.
Step 403, if it is determined that the ethernet message is a message to be processed, performing corresponding processing on the ethernet message; otherwise, discarding the Ethernet message.
In the embodiment of the application, each ethernet unit receives the ethernet message corresponding to the broadcasted fourth OSU data block, and if the ethernet message is determined to be the message processed by the ethernet processing unit, corresponding processing is performed; otherwise, the method is directly discarded.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the application.
Claims (10)
1. An ethernet traffic protection device in an optical transport network, the device comprising: the system comprises an Ethernet processing unit, a first Optical Service Unit (OSU) adaptation unit, a second OSU adaptation unit, an OSU crossing unit, a link aggregation LAG protocol processing unit and an OSU aggregation unit;
the ethernet processing unit is configured to receive an ethernet packet, and if it is determined that the ethernet packet is a service packet, send the ethernet packet to the second OSU adaptation unit; if the Ethernet message is determined to be a protocol message related to an aggregation link, the Ethernet message is sent to a first OSU adaptation unit;
the first OSU adapting unit is configured to encapsulate the ethernet packet into a first OSU data block;
the second OSU adapting unit is configured to encapsulate the ethernet packet into a second OSU data block;
the OSU crossing unit is used for sending OSU crossing processing of the first OSU data block to the LAG protocol processing unit; sending the second OSU data block to an OSU aggregation unit through OSU crossing processing;
the LAG protocol processing unit is used for sending the message content corresponding to the first OSU data block subjected to OSU cross processing to the Ethernet processing unit in a broadcasting mode through the OSU cross unit;
the OSU aggregation unit is configured to aggregate the second OSU data block that is subjected to OSU cross processing, and send the second OSU data block to the OTN unit of the optical transport network.
2. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the second OSU adapting unit is specifically configured to encapsulate the ethernet packet by specifying a code pattern when the ethernet packet is the second OSU data block; wherein the specified pattern can separate more than two ethernet messages at 256B code blocks.
3. The apparatus of claim 2, wherein the device comprises a plurality of sensors,
the code pattern specified by the second OSU adapting unit includes: DDDD, IIII, TIII, SDDD, DTII, DDTI and DDDT;
the OSU aggregation unit is specifically configured to parse the second OSU data block to obtain a 66b combination when performing aggregation processing on the second OSU data block, delete the IIII combination in the obtained 66b combination, and store the valid code combination into a cache; when acquiring the OSU data blocks of the designated aggregation, if the last block of 66b combination is detected to be an I block or a T block, determining that the Ethernet message corresponding to the current code block is ended, and generating a third OSU data block.
4. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the LAG protocol processing unit is specifically configured to encapsulate the message content corresponding to the first OSU data block into a third OSU data block according to the message content corresponding to the first OSU data block when sending the message content corresponding to the first OSU data block to the ethernet processing unit in a broadcasting manner through an intersecting OSU, and send the third OSU data block to the OSU intersecting unit; the message content corresponding to the first OSU data block is as follows: a message sent through the Ethernet port, or information of the port is notified;
the OSU cross unit is further configured to perform OSU cross processing on the third OSU data block, and broadcast and send the third OSU data block to the second OSU adaptation unit;
the second OSU adapting unit is further configured to parse the third OSU data block that is subjected to OSU cross processing to generate an ethernet packet, and send the ethernet packet to the ethernet processing unit;
the ethernet processing unit is further configured to, if it is determined that the ethernet packet is a packet that needs to be processed by the unit, perform corresponding processing on the ethernet packet; otherwise, discarding the Ethernet message.
5. The apparatus of any one of claims 1-4, wherein,
the OSU cross unit is further configured to perform cross processing and broadcast the fourth OSU data block sent by the OTN unit to the second OSU adaptation unit when the fourth OSU data block is received;
the second OSU adapting unit is further configured to decapsulate the fourth OSU data block to generate an ethernet packet, and send the ethernet packet to the ethernet processing unit;
the ethernet processing unit is further configured to, if it is determined that the ethernet packet is a packet that needs to be processed by the unit, perform corresponding processing on the ethernet packet; otherwise, discarding the Ethernet message.
6. A method for protecting ethernet traffic in an optical transport network, the method comprising:
receiving an Ethernet message;
if the Ethernet message is determined to be a protocol message related to an aggregation link, the Ethernet message is packaged into a first optical service unit OSU data block; performing OSU cross processing on the first OSU data block; carrying out link aggregation LAG protocol processing on a first OSU data block after OSU cross processing, and sending a processing result in a broadcasting mode through OSU cross processing so as to carry out Ethernet processing;
if the Ethernet message is determined to be a service message, the Ethernet message is packaged into a second OSU data block, and OSU cross processing is carried out on the second OSU data block; and carrying out aggregation treatment on the second OSU data block after OSU cross treatment, and sending the second OSU data block to an OTN unit.
7. The method of claim 6, wherein the step of providing the first layer comprises,
when the Ethernet message is encapsulated as a second OSU data block, encapsulating the Ethernet message by a designated code pattern; wherein the specified pattern can separate more than two ethernet messages at 256B code blocks.
8. The method of claim 7, wherein aggregating the OSU cross-processed second OSU data blocks comprises:
parsing the second OSU data block acquisition 66b combination;
deleting the IIII combination in the obtained 66b combination, and storing the effective code into a cache;
when acquiring the OSU data blocks of the designated aggregation, if the last block of 66b combination is detected to be an I block or a T block, determining that the Ethernet message corresponding to the current code block is ended, and generating a third OSU data block.
Wherein the specified pattern comprises: DDDD, IIII, TIII, SDDD, DTII, DDTI and DDDT.
9. The method of claim 6, wherein the sending the processing results in a broadcast manner for ethernet processing through OSU cross processing comprises:
packaging the message content corresponding to the first OSU data block into a third OSU data block, and performing OSU cross processing broadcast transmission; the message content corresponding to the first OSU data block is as follows: a message sent through the Ethernet port, or information of the port is notified;
analyzing each third OSU data block which is sent by broadcasting and is subjected to OSU cross processing, and generating an Ethernet message;
if the Ethernet message is determined to be the message to be processed, the Ethernet message is correspondingly processed; otherwise, discarding the Ethernet message.
10. The method according to any one of claims 6-9, further comprising:
when a fourth OSU data block sent by the OTN unit is received, OSU cross processing is carried out and broadcast sending is carried out;
analyzing each fourth OSU data block which is sent by broadcasting and is subjected to OSU cross processing, and generating an Ethernet message;
if the Ethernet message is determined to be the message to be processed, the Ethernet message is correspondingly processed; otherwise, discarding the Ethernet message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111622964.6A CN114339488B (en) | 2021-12-28 | 2021-12-28 | Method and device for protecting Ethernet service in optical transmission network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111622964.6A CN114339488B (en) | 2021-12-28 | 2021-12-28 | Method and device for protecting Ethernet service in optical transmission network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114339488A CN114339488A (en) | 2022-04-12 |
| CN114339488B true CN114339488B (en) | 2023-09-22 |
Family
ID=81014600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111622964.6A Active CN114339488B (en) | 2021-12-28 | 2021-12-28 | Method and device for protecting Ethernet service in optical transmission network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114339488B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115633279B (en) * | 2022-12-19 | 2023-04-07 | 北京华环电子股份有限公司 | OSU (open service Unit) cross equipment and data transmission method based on OSU cross equipment |
| CN117201434B (en) * | 2023-11-07 | 2024-08-09 | 杭州初灵信息技术股份有限公司 | Ethernet data interaction method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080050262A (en) * | 2006-12-01 | 2008-06-05 | 한국전자통신연구원 | Method of protection switching for link aggregation group and apparatus thereof |
| CN101296186A (en) * | 2008-06-13 | 2008-10-29 | 杭州华三通信技术有限公司 | Routing switching device, method and switching cable fastener plate |
| CN111083580A (en) * | 2019-12-09 | 2020-04-28 | 北京格林威尔科技发展有限公司 | Method and device for protecting Ethernet link in optical transmission network |
| CN113206721A (en) * | 2020-02-03 | 2021-08-03 | 华为技术有限公司 | Data transmission method, device and system |
-
2021
- 2021-12-28 CN CN202111622964.6A patent/CN114339488B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080050262A (en) * | 2006-12-01 | 2008-06-05 | 한국전자통신연구원 | Method of protection switching for link aggregation group and apparatus thereof |
| CN101296186A (en) * | 2008-06-13 | 2008-10-29 | 杭州华三通信技术有限公司 | Routing switching device, method and switching cable fastener plate |
| CN111083580A (en) * | 2019-12-09 | 2020-04-28 | 北京格林威尔科技发展有限公司 | Method and device for protecting Ethernet link in optical transmission network |
| CN113206721A (en) * | 2020-02-03 | 2021-08-03 | 华为技术有限公司 | Data transmission method, device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114339488A (en) | 2022-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114339488B (en) | Method and device for protecting Ethernet service in optical transmission network | |
| CN111788794B (en) | Method and apparatus for configuring flexible Ethernet nodes | |
| US12074643B2 (en) | Data transmission method and apparatus, terminal device and storage medium | |
| US9077560B2 (en) | Adaptation scheme for communications traffic | |
| CN109698732B (en) | Method and device for transmitting data | |
| CN102136989B (en) | Message transmission method, system and equipment | |
| US8160106B2 (en) | Method, device and system for transmitting Ethernet packets | |
| WO2000074259A3 (en) | Sequence numbering of data packets | |
| US20080232366A1 (en) | Method for transporting data packets, data network system, and network nodes | |
| CN105701053B (en) | Serial data transmitting and receiving method and device | |
| CN106603192A (en) | Adaptive FEC mechanism based on media content | |
| CN101179556B (en) | Method and apparatus for conveying optical fibre channel service | |
| EP2232785A1 (en) | Adaptation scheme for communications traffic | |
| EP2099191A1 (en) | Data transport container for transferring data in a high speed internet protocol network | |
| JP7027449B2 (en) | Methods, equipment and systems for transmitting traffic in the Flex Ethernet protocol | |
| CN110380957B (en) | Data processing method and device | |
| CN1440162A (en) | Method and device for transmitting Ethernet frame by SDH/SDNET net | |
| US20050249247A1 (en) | Methods and apparatus for multiplexing multiple signal sources over a single full duplex ETHERNET link | |
| CN110830152B (en) | Method for receiving code block stream, method for transmitting code block stream and communication device | |
| CN101252526B (en) | Flow control method as well as VPWS network system | |
| CN102916761B (en) | Coding and decoding method, related devices and related communication system | |
| US8295276B2 (en) | Method and apparatus for transporting multiprotocol label switching frames over physical communication links | |
| CN108134646B (en) | A kind of transmission method and device of optical transmission unit frame | |
| CN107592188A (en) | A kind of method and system of PTN bearer circuits artificial service lossless switching | |
| CN117041143A (en) | Satellite data forwarding method and system based on label switching technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |