CN101841744A - Transmitting method and device of hundred gigabit Ethernet in optical transmission network - Google Patents
Transmitting method and device of hundred gigabit Ethernet in optical transmission network Download PDFInfo
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- CN101841744A CN101841744A CN200910129609A CN200910129609A CN101841744A CN 101841744 A CN101841744 A CN 101841744A CN 200910129609 A CN200910129609 A CN 200910129609A CN 200910129609 A CN200910129609 A CN 200910129609A CN 101841744 A CN101841744 A CN 101841744A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1605—Fixed allocated frame structures
- H04J3/1652—Optical Transport Network [OTN]
- H04J3/1658—Optical Transport Network [OTN] carrying packets or ATM cells
Abstract
The invention discloses transmitting method, device and system of a hundred gigabit Ethernet in an optical transmission network, which relates to the communication field, and solves the problems of large complexity, high equipment cost and unsatisfactory bit transparent transmission. The invention provides the technical solution that multichannel parallel interface data accessed into the hundred gigabit Ethernet is converted into serial customer data flow; the serial customer data flow is mapped into an OPU4 payload section to carry out overhead processing; and OTU4 line interface data is formed and sent. The invention is used for transmitting the hundred gigabit Ethernet in the optical transmission network.
Description
Technical field
The present invention relates to the communications field, relate in particular to method and device that a kind of hundred gigabit Ethernets transmit in Optical Transmission Network OTN.
Background technology
OTN (Optical Transport Network, optical transport network) as the core technology that transmits net of future generation, the technical specification that comprises electricity layer photoreactive layer, possesses abundant OAM (Operation Administration Maintenance, operation, management, safeguard), powerful TCM (Tandem Connection Monitoring, monitoring is connected in series) ability and the outer FEC of band (Forward Error Correction, the forward direction error code correction) ability, can realize the flexible dispatching and the management of big capacity business, become the mainstream technology of Backbone Transport Network day by day.
Along with the quickening of 100GE (100gigabit Ethernet, hundred gigabit Ethernets) standardized process, 100GE transmits by the OTN network is just becoming the focus that industry is discussed simultaneously.ITU-T SG15 is discussing the new speed grade ODU4/OTU4 of definition and is carrying the 100GE business.Between the OTN network domains, when interconnected, there is interconnected, the requirement cheaply of short distance, has application scenarios by 100GE ethernet bridging OTN network.But existing bit transparent transmission can be brought the problem of transmission delay accumulative total, has exceeded the delay variance compensation range of Ethernet self.
Therefore current techniques selects to adopt the mode of 100GE data integration to carry out the transmission of 100GE Ethernet on OTN, so that carry out delay compensation in the OTN territory.
State in realization in the process that the 100GE Ethernet transmits on OTN, the inventor finds that there are the following problems at least in the prior art:
State in realization in the process of 100GE data integration, because the delay variance of each parallel channel is handled extremely complexity, increased the complexity and the equipment cost that realize greatly, and can not satisfy the demand of bit transparent transmission.
Summary of the invention
Method and device that embodiments of the invention provide a kind of hundred gigabit Ethernets to transmit in Optical Transmission Network OTN can reduce implementation complexity and equipment cost, satisfy the demand of bit transparent transmission.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The sending method of a kind of hundred gigabit Ethernets in Optical Transmission Network OTN comprises:
The hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that insert are converted to serial customer data stream;
Serial customer data stream is mapped between the OPU4 payload section, and carries out overhead processing;
Form OTU4 line interface data, send described interface data.
The dispensing device of a kind of hundred gigabit Ethernets in Optical Transmission Network OTN comprises:
Business data processing unit, the hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that are used for inserting are converted to serial customer data stream;
The mapping cost processing unit is used for serial customer data stream is mapped between the OPU4 payload section, and carries out overhead processing;
The interface processing unit is used to form OTU4 line interface data, sends described interface data.
The method of reseptance of a kind of hundred gigabit Ethernets in Optical Transmission Network OTN comprises:
Receive OTU4 line interface data, and data are reverted to the OTU4 frame data;
The OTU4 frame is carried out overhead processing, obtains serial customer data stream from the mapping of OPU4 payload interval solutions;
The circulation of serial customer data is changed to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data.
The receiving system of a kind of hundred gigabit Ethernets in Optical Transmission Network OTN comprises:
The interface processing unit is used to receive OTU4 line interface data, and data are reverted to the OTU4 frame data;
Expense is separated the mapping processing unit, is used for the OTU4 frame is carried out overhead processing, obtains serial customer data stream from the mapping of OPU4 payload interval solutions;
The business data processing unit is used for the circulation of serial customer data is changed to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data.
Method and device that hundred gigabit Ethernets that the embodiment of the invention provides transmit in Optical Transmission Network OTN do not need to carry out complicated data integration processing, reduce implementation complexity and equipment cost, satisfy the demand of bit transparent transmission.
Description of drawings
The FB(flow block) of the sending method of hundred gigabit Ethernets in Optical Transmission Network OTN that Fig. 1 provides for the embodiment of the invention;
Bit poll schematic diagram in the sending method of hundred gigabit Ethernets in Optical Transmission Network OTN that Fig. 2 provides for the embodiment of the invention;
Byte poll schematic diagram in the sending method of hundred gigabit Ethernets in Optical Transmission Network OTN that Fig. 3 provides for the embodiment of the invention;
OTU4 PARALLEL INTERFACE WITH MULTI CHANNELS explanation schematic diagram in the sending method of hundred gigabit Ethernets in Optical Transmission Network OTN that Fig. 4 provides for the embodiment of the invention;
The structure block diagram of the dispensing device of hundred gigabit Ethernets in Optical Transmission Network OTN that Fig. 5 provides for the embodiment of the invention;
The structure block diagram of the dispensing device of hundred gigabit Ethernets in Optical Transmission Network OTN that Fig. 6 provides for another embodiment of the present invention;
The FB(flow block) of the method for reseptance of hundred gigabit Ethernets in Optical Transmission Network OTN that Fig. 7 provides for the embodiment of the invention;
Bit wheel in the method for reseptance of hundred gigabit Ethernets in Optical Transmission Network OTN that Fig. 8 provides for the embodiment of the invention is sent out a schematic diagram;
Byte wheel in the method for reseptance of hundred gigabit Ethernets in Optical Transmission Network OTN that Fig. 9 provides for the embodiment of the invention is sent out a schematic diagram;
The structure block diagram of the receiving system of hundred gigabit Ethernets in Optical Transmission Network OTN that Figure 10 provides for the embodiment of the invention;
The structure block diagram of the receiving system of hundred gigabit Ethernets in Optical Transmission Network OTN that Figure 11 provides for another embodiment of the present invention.
Embodiment
Method and Apparatus and system that embodiments of the invention provide a kind of hundred gigabit Ethernets to transmit in Optical Transmission Network OTN can reduce implementation complexity and equipment cost, satisfy the demand of bit transparent transmission.
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
The sending method of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides, as shown in Figure 1, this method step comprises:
S101, the hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that will insert are converted to serial customer data stream;
S102, serial customer data stream is mapped between the OPU4 payload section, and carries out overhead processing;
S103, formation OTU4 line interface data, the transmission interface data.
Wherein, the hundred gigabit ethernet interface data that insert among the step S101 can be hundred gigabit adaptation unit interface CAUI interface data or hundred gigabit Ethernet Physical Coding Sublayer PCS channel datas.
The sending method of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides do not need to carry out complicated data integration processing, reduces implementation complexity and equipment cost, satisfies the demand of bit transparent transmission.
Further, above-mentioned steps S101, the hundred gigabit ethernet interface data that insert carried out the multichannel poll handle, obtain the customer data byte stream, can be specially data are carried out the bit poll:
Promptly each passage to the hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that insert bitwise carries out the order poll, obtain serial customer data stream, the i bit of the passage n of the hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that just will insert flows the j bit of m byte as the serial customer data;
Wherein: n is more than or equal to 0 smaller or equal to X-1, and wherein X is the port number of hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS; I is more than or equal to 0, and m is more than or equal to 0, and j is more than or equal to 0, and m equals that (i * X+n)/8 round, j equal the (mould 8 of i * X+n).
Be that example describes with the CAUI interface below, as shown in Figure 2:
The bit 0 of CAUI parallel interface passage 0 is as the 0th bit of the 0th byte of customer data byte stream;
The bit 0 of CAUI parallel interface passage 1 is as the 1st bit of the 0th byte of customer data byte stream;
The bit 0 of CAUI parallel interface passage 2 is as the 2nd bit of the 0th byte of customer data byte stream;
......；
The bit 0 of CAUI parallel interface passage 7 is as the 3rd bit of the 0th byte of customer data byte stream;
The bit 0 of CAUI parallel interface passage 8 is as the 0th bit of the 1st byte of customer data byte stream;
The bit 0 of CAUI parallel interface passage 9 is as the 1st bit of the 1st byte of customer data byte stream;
The bit 1 of CAUI parallel interface passage 0 is as the 2nd bit of the 1st byte of customer data byte stream;
The bit 1 of CAUI parallel interface passage 1 is as the 3rd bit of the 1st byte of customer data byte stream;
......；
The bit N-1 of CAUI parallel interface passage 7 is as the 5th bit of [10N/8]-1 byte of customer data byte stream;
The bit N-1 of CAUI parallel interface passage 8 is as the 6th bit of [10N/8]-1 byte of customer data byte stream;
The bit N-1 of CAUI parallel interface passage 9 is as the 7th bit of [10N/8]-1 byte of customer data byte stream.
Here, the interface channel is since 0,10 one circulation; N is the bit number of each passage, and 10 passages of every circulation advance 1; The bit number of the sub-byte of client's byte stream, since 0, per 8 one circulations; The byte number of client's byte stream, since 0, with the bit number of the sub-byte of client's byte stream, 8 bits of every circulation advance 1.
Hundred gigabit Ethernet PCS passages and said process are similar, do not repeat them here.
In addition, data polling is not limited in the bit poll, can also be that unit carries out poll with the byte, because OTN is that unit is operated with the byte, therefore be that unit carries out poll and also can guarantee the customer data byte stream with the byte, thereby guarantee the byte stream order on each passage of access interface.Concrete, promptly each passage to the hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that insert is that unit carries out the order poll with the N byte, obtain serial customer data stream, i the N byte of the passage n of the hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that just will insert flows j N byte as the serial customer data, and N is more than or equal to 1;
Wherein: n is more than or equal to 0 smaller or equal to X-1, and wherein X is the port number of hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS; I is more than or equal to 0; J is more than or equal to 0, and j equals (i * X+n.
Be polled as example with byte of CAUI interface below and describe, as shown in Figure 3:
The byte 0 of CAUI parallel interface passage 0 is as the 0th byte of customer data byte stream;
The byte 0 of CAUI parallel interface passage 1 is as the 1st byte of customer data byte stream;
The byte 0 of CAUI parallel interface passage 2 is as the 2nd byte of customer data byte stream;
......；
The byte 0 of CAUI parallel interface passage 7 is as the 7th byte of customer data byte stream;
The byte 0 of CAUI parallel interface passage 8 is as the 8th byte of customer data byte stream;
The byte 0 of CAUI parallel interface passage 9 is as the 9th byte of customer data byte stream;
The byte 1 of CAUI parallel interface passage 0 is as the 10th byte of customer data byte stream;
The byte 1 of CAUI parallel interface passage 1 is as the 11st byte of customer data byte stream;
......；
The byte N-1 of CAUI parallel interface passage 9 is as 10N-1 byte of customer data byte stream.
Here, the interface channel is since 0, and per 10 passages one circulate; N is the byte number of each passage, and since 0, with port number, 10 of every circulations advance 1; The byte number of client's byte stream adds up since 0.
Hundred gigabit Ethernet PCS passages and said process are similar, do not repeat them here.
N byte poll and said process are similar, do not repeat them here.
The sending method of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides, do not need to carry out complicated data integration processing, handle with bit poll or byte polling mode, reduce implementation complexity and equipment cost, satisfy the demand of bit transparent transmission.
In addition, above-mentioned steps S102, serial customer data stream is mapped between the OPU4 payload section, and carries out overhead processing.Wherein, the customer data byte stream is shone upon, be specifically as follows, or customer data is mapped between the payload section of OPU4 by other asynchronous mapping modes by general mapping rules GMP.
Have again, above-mentioned steps S103, formation OTU4 line interface data, the transmission interface data are specifically as follows: OTU4 is carried out slicing treatment form OTU4 PARALLEL INTERFACE WITH MULTI CHANNELS data, by the OTU4 PARALLEL INTERFACE WITH MULTI CHANNELS or can adjust Serdes and become frame interface SFI-S to carry out data to send.
Concrete, as shown in Figure 4, what per 16 bytes of OTU4 were polled is distributed on 20 logical channels, and the wheel that each OTU4 frame boundaries carries out passage changes; Promptly the poll of i frame be distributed as from passage 0, passage 1 ..., passage 18, passage 19; The poll of i+1 frame be distributed as passage 1, passage 2 ..., passage 19, passage 0; The poll of i+2 frame be distributed as passage 2, passage 3 ..., passage 19, passage 0, passage 1; ...; The poll of i+19 frame be distributed as passage 19, passage 0, passage 1 ..., passage 17, passage 18;
(the Frame Alignment Signal FAS of OTUk is defined as the OTUk overhead area of the 1st to the 6th row of first row with the 3rd OA2 byte in distribution procedure.The 1st byte to the 3 bytes of FAS expense are OA1, and the 4th byte to the 6 bytes are OA2.Wherein OA1 is " 11110110 ", and OA2 is " 00101000 ") replace with the logical channel number (LCN) sign so that receiving end is carried out the frame alignment.Logical channel identifier is 0～239;
Maybe can adjust Serdes by the OTU4 PARALLEL INTERFACE WITH MULTI CHANNELS becomes frame interface SFI-S to send.
In addition, also can send by the All other routes interface of OTU4.
The sending method of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides do not need to carry out complicated data integration processing, handles in the data polling mode, reduces implementation complexity and equipment cost, satisfies the demand of bit transparent transmission.
The dispensing device of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides as shown in Figure 5, comprising:
Business data processing unit 501, the hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that are used for inserting are converted to serial customer data stream;
Mapping cost processing unit 502 is used for serial customer data stream is mapped between the OPU4 payload section, and carries out overhead processing;
The dispensing device of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides do not need to carry out complicated data integration processing, reduces implementation complexity and equipment cost, satisfies the demand of bit transparent transmission.
Wherein, in the dispensing device of hundred gigabit Ethernets in Optical Transmission Network OTN that another embodiment of the present invention provides, as shown in Figure 6, above-mentioned business data processing unit 501 specifically comprises:
Handle sending module 503B, be used for the result is handled, form OTU4 line interface data, the transmission interface data
The dispensing device of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides do not need to carry out complicated data integration processing, reduces implementation complexity and equipment cost, satisfies the demand of bit transparent transmission.
The method of reseptance of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides, as shown in Figure 7, this method comprises:
S701, receive OTU4 line interface data, and data are reverted to the OTU4 frame data;
S702, the OTU4 frame is carried out overhead processing, obtains serial customer data stream from OPU4 payload interval solutions mapping;
S703, serial customer data circulation is changed to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data.
Wherein, the hundred gigabit ethernet interface data that recover can be hundred gigabit adaptation unit interface CAUI interface data or hundred gigabit Ethernet Physical Coding Sublayer PCS channel datas.
The method of reseptance of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides replaces complicated data integration processing with data transaction, reduces implementation complexity and equipment cost, satisfies the demand of bit transparent transmission.
Further, above-mentioned steps S703, serial customer data circulation is changed to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data, can sequential loop be distributed to hundred each passages of gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS in order the serial customer data is flowed bitwise, revert to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data, just the j bit of the m byte that the serial customer data is flowed is as the i bit of the passage n of hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data;
Wherein, n equals that (the mould X of m * 8+j), n are more than or equal to 0 smaller or equal to X-1, and wherein X is the port number of hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS; I equals that (m * 8+j)/X rounds, and wherein X is the port number of hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS; I is more than or equal to 0, and m is more than or equal to 0.
Be that example describes with the CAUI interface below, as shown in Figure 8:
The 0th bit of the 0th byte of customer data byte stream is as the bit 1 of CAUI parallel interface passage 0;
The 1st bit of the 0th byte of customer data byte stream is as the bit 1 of CAUI parallel interface passage 1;
The 2nd bit of the 0th byte of customer data byte stream is as the bit 1 of CAUI parallel interface passage 2;
......；
The 7th bit of the 0th byte of customer data byte stream is as the bit 1 of CAUI parallel interface passage 7;
The 0th bit of the 1st byte of customer data byte stream is as the bit 1 of CAUI parallel interface passage 8;
The 1st bit of the 1st byte of customer data byte stream is as the bit 1 of CAUI parallel interface passage 9;
The 2nd bit of the 1st byte of customer data byte stream is as the bit 2 of CAUI parallel interface passage 0;
The 3rd bit of the 1st byte of customer data byte stream is as the bit 2 of CAUI parallel interface passage 1;
......；
The 5th bit of 10N/8-1 byte of customer data byte stream is as the bit N-1 of CAUI parallel interface passage 7;
The 6th bit of 10N/8-1 byte of customer data byte stream is as the bit N-1 of CAUI parallel interface passage 8;
The 7th bit of 10N/8-1 byte of customer data byte stream is as the bit N-1 of CAUI parallel interface passage 9.
At this, the byte number of described customer data byte stream, with the bit number of each byte, since the 0th byte, 8 bits of every circulation advance 1; The bit number of each byte, since the 0th bit, per 8 bits, one circulation; The interface channel, from passage 0, per 10 passages, one circulation; The bit of each passage, with port number, from bit 0, per 10 passages advance 1.
The bit wheel of hundred gigabit Ethernet PCS passages is sent out with said process similar, just repeats no more at this.
In addition, data wheel is sent out and is not limited in bit wheel and sends out, can also be that unit takes turns and sends out with the byte, concrete, promptly described customer data byte stream is carried out the byte wheel and send out processing, recover interface data, just with i the N byte of j N byte of customer data byte stream as the passage n of hundred gigabit ethernet interface data, N is more than or equal to 1;
Wherein, for the CAUI interface data, n is more than or equal to 0 smaller or equal to 9, and i is more than or equal to 0, and j is more than or equal to 0, and n equals j mould 10, and i equals j/10 and rounds;
For hundred gigabit Ethernet PCS channel datas, n is more than or equal to 0 smaller or equal to 19, and i is more than or equal to 0, and j is more than or equal to 0, and n equals j mould 20, and i equals j/20 and rounds.
Sending out with a byte wheel with the CAUI interface below is that example describes, as shown in Figure 9:
The 0th byte of customer data byte stream is as the byte 0 of CAUI parallel interface passage 0;
The 1st byte of customer data byte stream is as the byte 0 of CAUI parallel interface passage 1;
The 2nd byte of customer data byte stream is as the byte 0 of CAUI parallel interface passage 2;
......；
The 9th byte of customer data byte stream is as the byte 0 of CAUI parallel interface passage 9;
The 10th byte of customer data byte stream is as the byte 1 of CAUI parallel interface passage 0;
The 11st byte of customer data byte stream is as the byte 1 of CAUI parallel interface passage 1;
The 12nd byte of customer data byte stream is as the byte 1 of CAUI parallel interface passage 2;
......；
10N-1 byte of customer data byte stream is as the byte N-1 of CAUI parallel interface passage 9.
At this, the byte number of customer data byte stream is circulated to last byte since the 0th byte; Port number is from passage 1, and per 10 passages one circulate; The byte number of each passage is with port number, and from byte 0, per 10 passages advance 1.
N byte wheel is sent out with said process similar, does not repeat them here.
Send out with said process similarly for the byte of hundred gigabit Ethernet PCS passages wheel, do not repeat them here.
The method of reseptance of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides do not need to carry out complicated data integration processing, reduces implementation complexity and equipment cost, satisfies the demand of bit transparent transmission.
The receiving system of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides as shown in figure 10, comprising:
Expense is separated mapping processing unit 1002, is used for the OTU4 frame is carried out overhead processing, obtains serial customer data stream from the mapping of OPU4 payload interval solutions;
Business data processing unit 1003 is used for the circulation of serial customer data is changed to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data.
The receiving system of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides with the data integration processing of data transaction replace complex, reduces implementation complexity and equipment cost, satisfies the demand of bit transparent transmission.
Further, as shown in figure 11, interface processing unit 1001 specifically comprises:
Business data processing unit 1003 comprises:
Receiver module 1003A is used to receive described serial customer data stream;
The receiving system of hundred gigabit Ethernets in Optical Transmission Network OTN that the embodiment of the invention provides with the data integration processing of data transaction replace complex, reduces implementation complexity and equipment cost, satisfies the demand of bit transparent transmission.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (16)
1. the sending method of a gigabit Ethernet in Optical Transmission Network OTN is characterized in that, comprising:
The hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that insert are converted to serial customer data stream;
Described serial customer data stream is mapped between the OPU4 payload section, and carries out overhead processing;
Form OTU4 line interface data, send described interface data.
2. the sending method of hundred gigabit Ethernets according to claim 1 in Optical Transmission Network OTN is characterized in that, hundred gigabit ethernet interface data of described access specifically comprise:
Hundred gigabit adaptation unit interface CAUI interface data or hundred gigabit Ethernet Physical Coding Sublayer PCS channel datas.
3. the sending method of hundred gigabit Ethernets according to claim 1 in Optical Transmission Network OTN is characterized in that, the described hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data transaction Bits Serial customer data streams that will insert are specially:
Each passage to the described hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data of described access bitwise carries out the order poll, obtains described serial customer data stream, is specially:
The i bit of the passage n of the described hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that insert is flowed the j bit of m byte as the serial customer data;
Wherein: n is more than or equal to 0 smaller or equal to X-1, and wherein X is the port number of hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS; I is more than or equal to 0, and m is more than or equal to 0, and j is more than or equal to 0, and m equals that (i * X+n)/8 round, j equal the (mould 8 of i * X+n).
4. the sending method of hundred gigabit Ethernets according to claim 1 in Optical Transmission Network OTN is characterized in that, the described hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that will insert are converted to serial customer data stream and are specially:
Each passage to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data of described access is that unit carries out the order poll with the N byte, obtains serial customer data stream, is specially:
I the N byte of the passage n of the described hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that insert flowed j N byte as the serial customer data, and N is more than or equal to 1;
Wherein: n is more than or equal to 0 smaller or equal to X-1, and wherein X is the port number of hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS; I is more than or equal to 0; J is more than or equal to 0, and j equals (i * X+n).
5. the sending method of hundred gigabit Ethernets according to claim 1 in Optical Transmission Network OTN is characterized in that, described described serial customer data stream is shone upon to handle be specially:
By general mapping rules GMP or asynchronous mapping method described serial customer data stream is mapped between the OPU4 payload section.
6. the sending method of hundred gigabit Ethernets according to claim 1 in Optical Transmission Network OTN is characterized in that, described formation OTU4 line interface data send described interface data and are specially:
OTU4 is carried out slicing treatment form OTU4 PARALLEL INTERFACE WITH MULTI CHANNELS data, maybe can adjust Serdes by the OTU4 PARALLEL INTERFACE WITH MULTI CHANNELS and become frame interface SFI-S to carry out the data transmission.
7. the dispensing device of a gigabit Ethernet in Optical Transmission Network OTN is characterized in that, comprising:
Business data processing unit, the hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that are used for inserting are converted to serial customer data stream;
The mapping cost processing unit is used for described serial customer data stream is mapped between the OPU4 payload section, and carries out overhead processing;
The interface processing unit is used to form OTU4 line interface data, sends described interface data.
8. the dispensing device of hundred gigabit Ethernets according to claim 7 in Optical Transmission Network OTN is characterized in that, described business data processing unit specifically comprises:
Access module is used to insert hundred gigabit ethernet interface data;
Data conversion module is used for the described hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that insert are changed, and obtains serial customer data stream.
9. the dispensing device of hundred gigabit Ethernets according to claim 7 in Optical Transmission Network OTN is characterized in that, described interface processing unit specifically comprises:
Receiver module is used to receive the result after the described mapping cost processing unit processes;
Handle sending module, be used for described result is handled, form OTU4 line interface data, send described interface data.
10. the method for reseptance of a gigabit Ethernet in Optical Transmission Network OTN is characterized in that, comprising:
Receive OTU4 line interface data, and described data are reverted to the OTU4 frame data;
Described OTU4 frame is carried out overhead processing, obtains serial customer data stream from the mapping of OPU4 payload interval solutions;
Described serial customer data circulation is changed to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data.
11. the method for reseptance of hundred gigabit Ethernets according to claim 10 in Optical Transmission Network OTN is characterized in that, described hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data specifically comprise:
Hundred gigabit adaptation unit interface CAUI interface data or hundred gigabit Ethernet Physical Coding Sublayer PCS channel datas.
12. the method for reseptance of hundred gigabit Ethernets according to claim 10 in Optical Transmission Network OTN is characterized in that, described described serial customer data is circulated is changed to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data, specifically comprises:
Flow described serial customer data bitwise that sequential loop is distributed to hundred each passages of gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS, revert to described hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data, be specially:
With the j bit of the m byte of described serial customer data stream i bit as the passage n of described hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data;
Wherein, n equal (m * 8+j] mould X, n is more than or equal to 0 smaller or equal to X-1, wherein X is the port number of hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS; I equals that (m * 8+j)/X rounds, and wherein X is the port number of hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS; I is more than or equal to 0, and m is more than or equal to 0.
13. the method for reseptance of hundred gigabit Ethernets according to claim 10 in Optical Transmission Network OTN is characterized in that, described described serial customer data is circulated is changed to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data, specifically comprises:
Is that the unit sequence circulation is distributed to described hundred each passages of gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS with the byte of described customer data stream with the N byte, reverts to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data, is specially:
Described serial customer data is flowed i the N byte of j N byte as the passage n of the described hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data that insert, and N is more than or equal to 1;
Wherein: n equals j mould X, and n is more than or equal to 0 smaller or equal to X-1, and wherein X is the port number of hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS; I equals j/X and rounds, and wherein X is the port number of hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS, and i is more than or equal to 0; J is more than or equal to 0.
14. the receiving system of a gigabit Ethernet in Optical Transmission Network OTN is characterized in that, comprising:
The interface processing unit is used to receive OTU4 line interface data, and described data are reverted to the OTU4 frame data;
Expense is separated the mapping processing unit, is used for described OTU4 frame is carried out overhead processing, obtains serial customer data stream from the mapping of OPU4 payload interval solutions;
The business data processing unit is used for described serial customer data circulation is changed to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data.
15. the receiving system of hundred gigabit Ethernets according to claim 14 in Optical Transmission Network OTN is characterized in that, described interface processing unit specifically comprises:
Receiver module is used to receive OTU4 line interface data;
Processing module is used for described data are reverted to the OTU4 frame data.
16. the receiving system of hundred gigabit Ethernets according to claim 14 in Optical Transmission Network OTN is characterized in that, described business data processing unit comprises:
Receiver module is used to receive described serial customer data stream;
Data conversion module is used for described serial customer data circulation is changed to hundred gigabit Ethernet PARALLEL INTERFACE WITH MULTI CHANNELS data.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910129609A CN101841744A (en) | 2009-03-17 | 2009-03-17 | Transmitting method and device of hundred gigabit Ethernet in optical transmission network |
| PCT/CN2010/071034 WO2010105538A1 (en) | 2009-03-17 | 2010-03-15 | Method and device for transmitting 100 gigabit ethernet in an optical transport network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910129609A CN101841744A (en) | 2009-03-17 | 2009-03-17 | Transmitting method and device of hundred gigabit Ethernet in optical transmission network |
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| CN101841744A true CN101841744A (en) | 2010-09-22 |
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| CN200910129609A Pending CN101841744A (en) | 2009-03-17 | 2009-03-17 | Transmitting method and device of hundred gigabit Ethernet in optical transmission network |
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| WO2010105538A1 (en) | 2010-09-23 |
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