CN1812316A - Link collecting processing method and apparatus - Google Patents
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- CN1812316A CN1812316A CNA2005100330271A CN200510033027A CN1812316A CN 1812316 A CN1812316 A CN 1812316A CN A2005100330271 A CNA2005100330271 A CN A2005100330271A CN 200510033027 A CN200510033027 A CN 200510033027A CN 1812316 A CN1812316 A CN 1812316A
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Abstract
This invention is a kind of links gathering method and equipment which relates to digital signal transmission. It concludes the following steps: A, the transmitting end receives multiplex client signals. B, the said multiplex client signals are transmitted to corresponding buffer area through corresponding channel. C, the data signal information is selected from the said each buffer area. After packaging the digital information to frames, an integrated signal is generated. The said frame signal contains at least the digital information of buffer areas and corresponding channel identification. The said signal transmits to the receiving end through lines. D, the said receiving end undertakes corresponding uncollecting process to complete client signal recovery; the structure of frame signal concludes frame header, frame size information, frame class identification, channel identification, net charge zone and check information.
Description
Technical field
The present invention relates to the transmission of digital information, relate in particular to a kind of link collecting processing method and device.
Background technology
Current local area network (LAN) adopts the Ethernet construction mostly, and Ethernet has that price is low, reliability is high, extensibility is good, be easy to advantages such as management, becomes a kind of configuration technology widely.Present Ethernet configuration mainly contains 10Mbps, 100Mbps, three kinds of speed of 1000Mbps.Owing to distance limit, ethernet signal can be realized the interconnection of data equipment by the direct binding of physical mediums such as optical fiber or copper cable in the local area network (LAN).
Yet along with Ethernet service further expands to metropolitan area network and wide area network, making needs to carry a large amount of Ethernet services in metropolitan area network and WAN network, present transmission equipment comprises SDH/SONET and wdm system, and in the business of newly opening, Ethernet service has accounted for bigger ratio.
At present, multiprotocol label switching MPLS also is a kind of important two-layer protocol of bearer IP service, function based on the MPLS packet switching becomes data equipment and basic demand of transmission equipment gradually, therefore, also needs to handle a large amount of mpls protocol signals in system.
In addition, the expansion of storage networking also is a trend of present network development, as application needs such as storage backup, storage integrations storage service is expanded by wide area network, require the storage service of transmission equipment carrying to comprise as optical-fibre channel (FC:Fibre Channel), business system connection (ESCON:Enterprise System Connection), optical fiber connection (FICON:Fiber Connection), simultaneously, transmission network also faces the demand of carrying video traffic such as digital video broadcasting (DVB:Digital VideoBroadcasting).
Therefore, in metropolitan area network or wide area network application, transmission equipment need carry the data-signal of a large amount of different agreements, and matter of utmost importance is exactly the effective transmission that solves data-signal how to realize a large amount of various protocols, and the transmission line management function is provided.
In existing application, mainly contain following dual mode:
1, ethernet signal can be realized the function of link aggregation by VLAN (VLAN:Virtual Local AreaNetwork) mode, adopt this mode, ethernet data frame is added the VLAN label, can realize the aggregation feature of a plurality of ethernet frames.
When the mode of employing VLAN realizes Ethernet-Aggregation, VLAN is as just a kind of switching technology, link layer signal after process VLAN converges is the data packet signal for happening suddenly still, the transport layer network that need be mapped to lower floor is for example by carrying out transmission process in SDH (Synchronous Digital Hierarchy) SDH, the optical transfer network OTN bearer network, and vlan technology can only be handled Ethernet service.
This technology application surface is narrower, and handles also comparatively complicated.
2, various signals transmit by SDH/SONET, OTN, typical processing method is after handling encapsulation process such as (GFP:Generic Framing Procedure) through general frame forming, GFP encapsulation process module is used for rate adapted is carried out in the data service of burst, encapsulated signal is mapped among the virtual container VC then, carry out the SDH/SONET framing again, produce the SDH/SONET frame signal, give the circuit transmission.For bearer network is the situation of OTN, also needs the SDH/SONET signal is mapped among the optical channel Payload Unit OPU of OTN again.
This technology-mapped structure treatment complexity, network layer is many, and mapping efficient is low, the processing cost height.
Summary of the invention
The object of the present invention is to provide a kind of wide application and link collecting processing method and device easy and simple to handle, handle complexity in the prior art to solve, network layer is many, and mapping efficient is low, the problem that range of application is narrow.
Link collecting processing method of the present invention adopts following steps:
A, transmitting terminal receive the multichannel client signal and make relevant treatment;
B, described multichannel client signal are sent to respectively in the corresponding cache region territory by corresponding passage separately;
C, extract data message from described each buffer zone, after data message encapsulated framing, pool a complete signal, described frame signal comprises data message and the corresponding gap marker in the buffer zone at least, and described signal transfers to receiving terminal by circuit;
D, described receiving terminal are separated convergence processing accordingly, finish the recovery of client signal.
In the described steps A, transmitting terminal is carried out opto-electronic conversion, input, clock and data recovery processing to the multichannel client signal, determines the client signal state that receives;
Among the described step C, described frame structure comprises frame head, frame length information, frame category sign, gap marker, payload area and check information;
Described frame head can adopt the information of set form or adopt the frame head payload area to add the mode of frame head verification zone component frame header, and the classification of payload area is divided into client data frame, customer care frame, line management frame and line speed adapter frame;
Among the described step C, after described data message is extracted, data block from each passage is carried out individual packages, data message to handled different passages adds gap marker, inserts multiplexing mode by interframe, converges the signal from a plurality of passages, converge in the process, can insert telecommunication management information and rate adapted information, after carrying out serialization again and handling, produce a synchronization bit and flow signal and transfer to receiving terminal by circuit;
Among the described step D, adopt following steps:
After D1, receiving terminal recovered line signal, identification frame head information according to frame head and frame length information, was determined the beginning and the end position of subsequent frame signal;
D2, determine current frame category, isolate client data frame, customer care frame, line management frame and line speed adapter frame, and carry out following corresponding processing according to the frame encapsulating structure:
D21, for client data frame and customer care frame, further the frame information data are separated and converge to the corresponding cache zone according to gap marker, export corresponding data to corresponding client's passage by the buffer zone and handle;
D22, for rate adapting frame, receiving terminal abandons;
D23, for the line management frame, submit to corresponding module and manage operation and maintenance and handle.
Among the described step C, when client signal breaks down, produce specific bit sequence and be placed in the payload area, and in frame length information and frame category indication, provide corresponding indication with set form;
Among the described step C, the frame signal after the described convergence processing can be used as synchronization bit stream and maps directly in the payload structure of SDH/SONET, OTN, produces the SDH/SONET frame signal, delivers to the circuit transmission;
This link aggregation processing unit, be connected in metropolitan area network or the wide area network system transmission line, it comprises client clock module and a plurality of client signal processing module, described a plurality of client signal processing module receives the multichannel client signal respectively, and to the relevant opto-electronic conversion of client signal work, input, clock and data recovery is handled, it is characterized in that: also comprise cache module and convergence processing module, and corresponding system clock module, wherein: described cache module is used to preserve the data message of client signal and to a plurality of client signal processing modules or convergence processing module Data transmission; Described convergence processing module finish data message framing, converge, relevant signal separate convergence processing, transmit data to circuit or cache module; Described system clock module provides system clock reference to cache module and convergence processing module;
Described cache module is divided into a plurality of buffer zones, and the mutual Data transmission of passage is separately passed through corresponding to corresponding client's service signal port in each buffer zone between described each client signal processing module and the corresponding cache region territory;
The bandwidth of described convergence processing module is greater than the service bandwidth summation of each passage;
Described device also comprises management information processing module, and described management information is handled module and linked to each other with the convergence processing module, finishes reception, transmission and the processing of relevant line management information.
Beneficial effect of the present invention is, in the present invention, directly carry out different path markings in the process of encapsulation, according to each client's service channel corresponding cache zone filling situation, the mode of carrying out the individual packages framing realizes the service convergence function, converge at passage and can insert the line management frame that is used for the line management maintenance information in the process, and the line speed adapter frame signal of rate adaptation function, the present invention can be with a plurality of link signals such as Ethernet, the MPLS frame, data-signal such as storage service and video traffic converges in the circuit of a big bandwidth and transmits, converge signal and possess transmission characteristic, receiving terminal directly extracts frame signal from synchronous flow, isolate different client's service signals, wide application and easy and simple to handle, with respect to prior art, the present invention has simplified the link aggregation processing, reduce the network mapping level, needn't adopt in the prior art link signal is encapsulated, be mapped in the virtual container of SDH/SONET, carry out framing then, the processing of line management expense, the present invention are particularly suitable for the occasion of wavelength-division system to the professional transparent transmission of data.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present invention;
Fig. 2 is the overall control flow schematic diagram of the present invention;
Fig. 3 is the encapsulated frame structural representation;
Fig. 4 is the frame head zone form schematic diagram of set form;
Fig. 5 is the frame head zone form schematic diagram with frame head payload defencive function;
Fig. 6 is a frame length information form schematic diagram;
Fig. 7 is the form schematic diagram of frame category identified areas;
Fig. 8 is frame signal transmission message structure schematic diagram;
Fig. 9 is the reception handling process schematic diagram of link aggregation.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
As shown in Figure 1, the present invention is connected in metropolitan area network or the wide area network system transmission line, it comprises client clock module 2 and n the client signal processing module 1 that is in client's side, a plurality of client signal processing modules 1 receive the multichannel client signal respectively, as shown in Figure 1, it is client signal #1 processing module 1, client signal #2 processing module 1, client signal #n processing module 1 receives client signal #1 respectively, client signal #2, client signal #n, 1 pair of client signal of client signal processing module is made relevant opto-electronic conversion, input, clock and data recovery is handled, the present invention also comprises cache module 3, convergence processing module 4, management information is handled module 6, and corresponding system clock module 5.
As shown in Figure 1, cache module 3 is used to preserve the data message of client signal and to a plurality of client signal processing modules 1 or convergence processing module 4 Data transmission, as shown in Figure 1, cache module 3 is divided into a plurality of buffer zones, the mutual Data transmission of passage is separately passed through corresponding to corresponding client's service signal port in each buffer zone between each client signal processing module 1 and the corresponding cache region territory.
As shown in Figure 1, convergence processing module 4 is a central processing module, finish data message framing, converge, relevant separating of signal converge and relevant treatment, transmits data to circuit or cache module 3, the bandwidth of convergence processing module 4 is greater than the service bandwidth summation of each passage.
As shown in Figure 1, management information is handled module 6 and is linked to each other with convergence processing module 4, finishes reception, transmission and the processing of relevant line management information.
As shown in Figure 1, system clock module 5 provides the system clock reference in line side to cache module 3 and convergence processing module 4.
Concrete control flow of the present invention is as follows:
1) as depicted in figs. 1 and 2, the client signal #1 processing module 1 of transmitting terminal, client signal #2 processing module 1 ..., client signal #n processing module 1 receive respectively from client signal #1 port, client signal #2 port ..., client signal #n port client signal, and client signal made relevant treatment, carry out opto-electronic conversion, input, clock and data recovery processing, determine the client signal state that receives.
2) as depicted in figs. 1 and 2, client signal #1, client signal #2 ..., client signal #n data message be sent to respectively in the cache module 3 in the corresponding cache region territory by corresponding passage separately.
3) as depicted in figs. 1 and 2, convergence processing module 4 is according to the filling situation in each passage buffer storage zone, extract data message from each buffer zone, data block from each passage is carried out individual packages, data message to handled different passages adds gap marker, inserts multiplexing mode by interframe, converges the signal from a plurality of passages, after data message encapsulated framing, pool a complete signal.
Frame structure in the convergence processing module 4 as shown in Figure 3, the frame structure of encapsulation of data signal comprises frame head, frame length information, frame category sign, gap marker, payload area and several parts of check information, frame structure can be the frame of regular length, also can be for the frame signal of variable-length but can extract length information from frame structure.As shown in Figure 1, the work clock that frame signal is handled determined by system clock module 5, can't help client clock module 2 to determine that the frame structure process object is the data message of client's business, and is irrelevant with the clock frequency of client's business.
As shown in Figure 3, the original position of frame head reflection frame signal, the length of frame length information reflection payload area, the type of frame category sign reflection payload area, the respective channel of gap marker reflection transmission, be that data message is from which client's passage, the state information of payload area carry data information or indication client signal, check information is used to guarantee the integrality of signals transmission, can adopt the method for cyclic redundancy check (CRC) mode, bit interleaved parity mode parity check method or forward error correction coding to insert check information.Respectively each zone is described in detail below:
A, frame head: the frame head zone is used to discern the original position of frame signal; frame head can adopt the information of set form; for example shown in Figure 4; the repetitive sequence pattern of F628 in SDH/SONET, the OTN frame format; or adopt the frame head payload area to add the mode of frame head verification zone component frame header; as shown in Figure 5; integrality with frame head verification locality protection frame head payload area; this processing can protect frame head not to be vulnerable to the interference of circuit transmission; in the frame receiving course under this processing mode, need calculate the frame head information that obtains by verification.
B, frame length information: frame length information is used for the frame head position of receiving terminal according to frame signal, determine the end position of frame signal fast, it is with the region representation frame length information of a regular length, for example shown in Figure 6, adopt the length of 2-byte, the maximum payload area that can support 65536 byte lengths, the byte length of the payload area of expression encapsulating structure is convenient to the start-stop position that receiving terminal is correctly discerned frame signal apace.
For normal client signal, i.e. client data frame, this zone can be the customer information of a preseting length.
For customer care information, promptly the customer care frame can adopt regular length, and the payload area of stipulating it is the fixed sequence program of regular length, for example complete 1 sequence, pseudo random sequence, customer care information representation client's fault condition.
For line management frame that is used for the line upkeep purpose and the line speed adapter frame that is used for rate adapted, may be prescribed as the information of regular length.
C, frame category sign: the frame category sign is used to distinguish special frames and Frame, special frames, that is and, line management frame and line speed adapter frame can adopt the Format Series Lines of fixed definitions; Frame is client data frame and customer care frame.
This zone uses the zone of a regular length to identify as frame category, and is for example shown in Figure 7, adopts 2-byte to be used for the classification of the payload area of identification frames signal structure, and relevant classification is as follows:
Client data frame, i.e. client's normal traffic signal.
The customer care frame, the client signal of this passage that indication receives breaks down, and the payload area part of customer care frame is by the fixed mode signal flow of the local clock generation of client signal processing module 1.
The line management frame is used for the specific information of line management, is inserted in the payload area of line management frame, and the specific information of line management can comprise telecommunication management information, the line upkeep information between the network element.
The line speed adapter frame is used for the line speed adapter frame of rate adapted.
In the present invention, use this frame category identified areas to represent payload area loaded information classification: client data frame, customer care frame, line management frame and line speed adapter frame, as shown in table 1, shown the frame category coding commonly used and the form and the encoded radio of Frame coding.
| Position in the encapsulating structure | The value of frame category identified areas (binary system/hexadecimal) | Information type in the payload area | Remarks |
| Byte 7 | 0000 0000/0x00 | The line speed adapter frame | |
| 0000 0001/0x01 | The line management frame | ||
| 0001 0000/0x10 | Client data frame | ||
| 0001 0001/0x11 | The customer care frame | ||
| Other | Keep or the other types definition | ||
| Byte 8 | 0000 0000/0x00 | Gigabit Ethernet GE Frame/GE maintenance frame | This byte is only meaningful at the client signal of each passage, and its implication need be in conjunction with the definition in the byte 7. |
| 0000 0001/0x01 | Fast Ethernet FE Frame/FE maintenance frame | ||
| 0000 0010/0x02 | Ether Ethernet Frame/Ethernet maintenance frame | ||
| 0000 0011/0x03 | Multiprotocol label switching MPLS Frame/MPLS maintenance frame | ||
| 0000 0100/0x04 | Optical-fibre channel FC 1G Frame/FC 1G maintenance frame | ||
| 0000 0101/0x05 | Optical-fibre channel FC 2G Frame/FC 2G maintenance frame | ||
| 0000 0110/0x06 | Optical fiber connects FICON 1G Frame/FICON 1G maintenance frame | ||
| 0000 0111/0x07 | Optical fiber connects FICON 2G Frame/FICON 2G maintenance frame | ||
| 0000 1000/0x08 | Business system connects ESCON Frame/ESCON maintenance frame | ||
| 0000 1001/0x09 | Digital video broadcasting DVB Frame/DVB maintenance frame | ||
| 0,000 1010～1,111 1111/0x0A～0xff | Keep or the other types definition |
Table 1
D, gap marker: be used to distinguish client signal from different passages, receiving terminal utilizes this regional information client signal can be passed to corresponding passage to carry out subsequent treatment, determined that in the frame category sign frame signal is under the situation of client data frame or customer care frame, the path marking zone may be prescribed as the 2-byte section signal from different passages is identified, what carry in the regulation payload area is client data frame or customer care frame from which passage, the path marking zone combines with payload area, and receiving terminal just can return to correct passage with the signal in the payload area thus and carry out subsequent treatment.
E, payload area: this zone can the carrying client Frame, can be a certain size data message piece of client's service signal of this passage; Also can carry the customer care frame of certain-length, when client's business of this passage breaks down, for example client signal processing module 1 monitors dropout, correctly under the fault condition such as recovered clock data-signal, utilize the bit sequence of the local clock generation set form of client clock module 2 controls, be placed in the payload area, and in frame length information and frame category sign, provide corresponding indication, pass to the receiving equipment of receiving terminal, receiving equipment is according to frame length information, information such as frame category sign, get access to this fault message, and this fault message is communicated by letter to the data equipment of far-end.
Payload area can also carry circuit management frames and line speed adapter frame.
F, check information: this zone is protected the information in the encapsulating structure; can begin to carry out verification from frame head at whole encapsulating structure to the section of payload area end position; also can select some zone to carry out checking treatment; the method of calibration that is adopted can be the cyclic redundancy check (CRC) mode; also can be that bit interleaved parity mode (BIP:Bit Interleaved Parity) parity check method or the method that adopts forward error correction coding (FEC:Forward Error Correction) are inserted check information, specifically handle with reference to relevant criterion.
After the data message of 4 pairs of client signals of convergence processing module carries out encapsulation process, the gap marker that has comprised different passages in the encapsulating structure, filling situation according to each buffer zone, insert multiplex mode read block from the buffer zone by interframe and carry out an independent frame encapsulation, because the difference of the bandwidth of client signal, the frame repetition frequency difference that different client signals form, for example for gigabit Ethernet GE and FE client's business, if the payload area size in the frame structure is identical, then the frame repetition frequency that forms of GE signal can be 10 times of the frame repetition frequency that forms of FE signal.
The bandwidth of convergence processing module 4 is greater than the service bandwidth summation of each passage, wherein extra bandwidth is used for the portions of bandwidth of transmission line management information, framing procedure increase, can comprise frame information beyond the payload area in the framing procedure, be used for receiving terminal and recover each channel signal, be used for the circuit transmission integrity checking, strengthen the transmission characteristic of circuit; Perhaps be used for interframe and insert the rate adapted of multiplex process, to produce the line speed of regulation.
Frame signal after 4 pairs of encapsulation of convergence processing module is carried out scrambler and is handled, improve the transmission characteristic of signal, converge in the process, can insert telecommunication management information and rate adapted information, after carrying out the serialization processing again, produce a similar synchronization bit shown in Figure 8 stream signal, can utilize the physical layer circuit process chip of existing maturation to carry out the serialization or the parallelization processing of signal, be convenient to transmit in the line, this synchronization bit stream signal transfers to receiving terminal by circuit.
In the present invention, the frame signal after the convergence processing can be used as synchronization bit stream and maps directly in the payload structure of SDH/SONET, OTN, produces the SDH/SONET frame signal, delivers to the circuit transmission.
4) receiving terminal is separated convergence processing accordingly, finishes the recovery of client signal, and its concrete control flow is as follows:
41),, both can be used for transmission information for the present invention as Fig. 1 and shown in Figure 9, also can be used for reception information, for the purpose of explanation, be reflected as receiving terminal with Fig. 1 equally, receive line signal input after, line signal is carried out signal receive processing, comprise physical layer process,, carry out the detection of necessary dropout, synchronization loss alarm as opto-electronic conversion, clock and data recovery to signal, these phenomena of the failure occur, will produce corresponding warning information.
42) as Fig. 1 and shown in Figure 9, recover line signal after, by convergence processing module 4 identification frame head information, can calculate by the search frame header sequence or to the master gage of frame head and handle.
43) as Fig. 1 and shown in Figure 9, determined after the frame head position that convergence processing module 4 is determined the beginning and the end position of subsequent frame signal according to frame head and frame length information, be convenient to carry out follow-up frame head search.
44) as Fig. 1 and shown in Figure 9, carry out the frame integrity checking then, the integrality of the frame signal that assurance receives and correctness, determine current frame category according to the frame encapsulating structure, isolate client data frame, customer care frame, line management frame and line speed adapter frame, and carry out following corresponding processing:
441) as Fig. 1 and shown in Figure 9, for client data frame or customer care frame, further the frame information data are separated and converge to corresponding cache zone in the cache module 3 according to gap marker, export corresponding data to corresponding client signal #1 processing module 1 by the buffer zone, client signal #2 processing module 1, client signal #n processing module 1, client signal #1 processing module 1, client signal #2 processing module 1, client signal #n processing module 1 is handled respectively the signal of each passage, produces the signal that is suitable for client's business demand and delivers to client signal #1 port respectively, client signal #2 port, client signal #n port.For the customer care frame, according to the payload area information of faulty indication in the frame category sign that receives and expression client traffic failure state, client's side is notified to corresponding fault message the data equipment of far-end.
442) as Fig. 1 and shown in Figure 9, for rate adapting frame, convergence processing module 4 is to its discard processing.
443),, submit to corresponding management information processing module 6 and manage the operation and maintenance processing for the line management frame as Fig. 1 and shown in Figure 9.
Like this, realizing by the present invention that a plurality of service signals directly converge in the single circuit transmits, improve line transmission bandwidth, reduce the complexity of handling, the client signal that is inserted can be any common data service signal, for example, realize that by the present invention 8 * GE signal gathering transmits in 10G speed circuit.
Claims (12)
1. link collecting processing method, it is characterized in that: it adopts following steps:
A, transmitting terminal receive the multichannel client signal;
B, described multichannel client signal are sent to respectively in the corresponding cache region territory by corresponding passage separately;
C, extract data message from described each buffer zone, after data message encapsulated framing, pool a complete frame signal, comprise data message and corresponding gap marker in the buffer zone in the described frame signal at least, described signal transfers to receiving terminal by circuit;
D, described receiving terminal are separated convergence processing accordingly, finish the recovery of client signal.
2. link collecting processing method according to claim 1 is characterized in that: in the described steps A, transmitting terminal is carried out opto-electronic conversion, input, clock and data recovery processing to the multichannel client signal, determines the client signal state that receives.
3. link collecting processing method according to claim 1 is characterized in that: among the described step C, the frame structure of described frame signal comprises frame head, frame length information, frame category sign, gap marker, payload area and check information.
4. link collecting processing method according to claim 3, it is characterized in that: described frame head can adopt the information of set form or adopt the frame head payload area to add the mode of frame head verification zone component frame header, and the classification of payload area can be client data frame, customer care frame, line management frame or line speed adapter frame.
5. according to claim 1 or 3 or 4 described link collecting processing methods, it is characterized in that: among the described step C, after described data message is extracted, data block from each passage is carried out individual packages, data message to handled different passages adds gap marker, insert multiplexing mode by interframe, converge signal from a plurality of passages, converge in the process, can insert telecommunication management information and rate adapted information, after carrying out the serialization processing again, produce a synchronization bit stream signal and transfer to receiving terminal by circuit.
6. according to claim 3 or 4 described link collecting processing methods, it is characterized in that: among the described step D, adopt following steps:
After D1, receiving terminal recovered line signal, identification frame head information according to frame head and frame length information, was determined the beginning and the end position of subsequent frame signal;
D2, determine current frame category, isolate client data frame, customer care frame, line management frame and line speed adapter frame, and carry out following corresponding processing according to the frame encapsulating structure:
D21, for client data frame or customer care frame, further the frame information data are separated and converge to the corresponding cache zone according to gap marker, export corresponding data to corresponding client's passage by the buffer zone and handle;
D22, for rate adapting frame, receiving terminal abandons;
D23, for the line management frame, submit to corresponding module and manage operation and maintenance and handle.
7. according to claim 3 or 4 described link collecting processing methods, it is characterized in that: among the described step C, when client signal breaks down, produce specific bit sequence and be placed in the payload area, and in frame length information and frame category indication, provide corresponding indication with set form.
8. link collecting processing method according to claim 1, it is characterized in that: among the described step C, frame signal after the described convergence processing can be used as synchronization bit stream and maps directly in the payload structure of SDH/SONET, OTN, produces the SDH/SONET frame signal, delivers to the circuit transmission.
9. link aggregation processing unit, be connected in metropolitan area network or the wide area network system transmission line, it comprises client clock module and a plurality of client signal processing module, described a plurality of client signal processing module receives the multichannel client signal respectively, and to the relevant opto-electronic conversion of client signal work, input, clock and data recovery processing, it is characterized in that: also comprise cache module and convergence processing module, and corresponding system clock module, wherein:
Described cache module is used to preserve the data message of client signal and to a plurality of client signal processing modules or convergence processing module Data transmission;
Described convergence processing module finish data message framing, converge, separate convergence processing, transmit data to circuit or cache module;
Described system clock module provides system clock reference to cache module and convergence processing module.
10. link aggregation processing unit according to claim 9, it is characterized in that: described cache module is divided into a plurality of buffer zones, the mutual Data transmission of passage is separately passed through corresponding to corresponding client's service signal port in each buffer zone between described each client signal processing module and the corresponding cache region territory.
11. link aggregation processing unit according to claim 10 is characterized in that: the bandwidth of described convergence processing module is greater than the service bandwidth summation of each passage.
12. according to claim 9 or 10 or 11 described link aggregation processing unit, it is characterized in that: described device also comprises management information processing module, described management information is handled module and is linked to each other with the convergence processing module, finishes reception, transmission and the processing of relevant line management information.
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| CN104092529A (en) * | 2014-07-24 | 2014-10-08 | 上海寰视网络科技有限公司 | Clock synchronization adjusting system and adjusting method thereof |
| CN104754003A (en) * | 2013-12-30 | 2015-07-01 | 腾讯科技（深圳）有限公司 | Data transmission method and system |
| CN106900082A (en) * | 2017-02-04 | 2017-06-27 | 北京信息科技大学 | The data processing method and sensor network nodes of sensor network nodes |
| WO2020001487A1 (en) * | 2018-06-28 | 2020-01-02 | 南京中兴软件有限责任公司 | Overhead transmission method and apparatus, and device and computer-readable storage medium |
| WO2021068877A1 (en) * | 2019-10-09 | 2021-04-15 | 中兴通讯股份有限公司 | Multichannel data sending method and apparatus, multichannel data receiving method and apparatus, medium, and electronic device |
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| CN100459465C (en) * | 2001-08-24 | 2009-02-04 | 朗米·S·冈达 | Method and apparaturs for translating sdh/sonet frames to Ethernet frames |
| EP1339198B1 (en) * | 2002-02-22 | 2004-09-08 | Alcatel | Enhanced transport of ethernet traffic over a transport SDH/SONET network |
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| CN102497265A (en) * | 2011-11-24 | 2012-06-13 | 飞天诚信科技股份有限公司 | Pulse light signal identification method and apparatus thereof |
| WO2013075379A1 (en) * | 2011-11-24 | 2013-05-30 | 飞天诚信科技股份有限公司 | Pulse optical signal recognition method and device |
| CN102497265B (en) * | 2011-11-24 | 2014-03-12 | 飞天诚信科技股份有限公司 | Pulse light signal identification method and apparatus thereof |
| US9112855B2 (en) | 2011-11-24 | 2015-08-18 | Feitian Technologies Co., Ltd. | Method for identifying pulse optical signal and device thereof |
| US10181963B2 (en) | 2013-12-30 | 2019-01-15 | Tencent Technology (Shenzhen) Company Limited | Data transfer method and system |
| CN104754003A (en) * | 2013-12-30 | 2015-07-01 | 腾讯科技（深圳）有限公司 | Data transmission method and system |
| CN104092529A (en) * | 2014-07-24 | 2014-10-08 | 上海寰视网络科技有限公司 | Clock synchronization adjusting system and adjusting method thereof |
| CN104092529B (en) * | 2014-07-24 | 2018-05-01 | 上海寰视网络科技有限公司 | A kind of clock is adjusted in synchronism system and its adjusting method |
| CN106900082A (en) * | 2017-02-04 | 2017-06-27 | 北京信息科技大学 | The data processing method and sensor network nodes of sensor network nodes |
| CN106900082B (en) * | 2017-02-04 | 2020-04-28 | 北京信息科技大学 | Data processing method of sensor network node and sensor network node |
| WO2020001487A1 (en) * | 2018-06-28 | 2020-01-02 | 南京中兴软件有限责任公司 | Overhead transmission method and apparatus, and device and computer-readable storage medium |
| CN110661745A (en) * | 2018-06-28 | 2020-01-07 | 中兴通讯股份有限公司 | Overhead transmission method, device, equipment and computer readable storage medium |
| CN110661745B (en) * | 2018-06-28 | 2022-07-08 | 中兴通讯股份有限公司 | Overhead transmission method, device, equipment and computer readable storage medium |
| WO2021068877A1 (en) * | 2019-10-09 | 2021-04-15 | 中兴通讯股份有限公司 | Multichannel data sending method and apparatus, multichannel data receiving method and apparatus, medium, and electronic device |
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