CN108809901A - A kind of method, apparatus and system of service bearer - Google Patents
A kind of method, apparatus and system of service bearer Download PDFInfo
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- CN108809901A CN108809901A CN201710301888.6A CN201710301888A CN108809901A CN 108809901 A CN108809901 A CN 108809901A CN 201710301888 A CN201710301888 A CN 201710301888A CN 108809901 A CN108809901 A CN 108809901A
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- flexe
- code block
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- traffic frames
- frame
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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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
- Communication Control (AREA)
Abstract
The application provides a kind of method, apparatus and system of service bearer, wherein this method includes：Sending ending equipment obtains flexible Ethernet FlexE client signals；Convert the FlexE client signals to FlexE traffic frames, the FlexE traffic frames include at least one first expense code block and at least one data code block, at least one first expense code block is used to carry the Overhead of the FlexE client signals, and at least one data code block is used to carry the payload information of the FlexE client signals；The FlexE traffic frames are mapped in the one or more time slot of physical channel, FlexE expense frames are generated, the FlexE expenses frame includes the second expense code block, and the second expense code block is used to carry the Overhead of the FlexE expenses frame；The FlexE expenses frame is sent by the physical channel.In the application, converts FlexE client signals to FlexE traffic frames, and carry the Overhead of FlexE client signals by FlexE traffic frames, may be implemented to the network management end to end of FlexE client signals and monitoring.
Description
Technical field
This application involves the communications field more particularly to a kind of method, apparatus and system of service bearer.
Background technology
Current flexible Ethernet realization agreement (Flex Ethernet Implementation Agreement 1.0,
FlexE IA 1.0) interfacing is in optical interconnection forum (Optical Internetworking Forum, OIF) standard
Change.FlexE can be applied to data center apparatus interconnection etc., by binding n 100G physical layer devices (physical layer
Device, PHY) transmit the FlexE client traffics of multichannel different rates, such as the FlexE client traffics of 10G, n*25G, 40G
Deng.
For long distance transmission, FlexE client traffics can be packaged into FlexE signals by FlexE, then be transmitted by light
Net (optical transport network, OTN) is carried and is transmitted FlexE signals.As shown in Figure 1, from FlexE
101 arrive the FlexE signals of FlexE 103, or 101 FlexE signals can be with break-through OTN from FlexE 103 to FlexE
102, bearer network is used as by OTN and realizes long distance transmission.In the prior art, it can be realized by following three kinds of modes
FlexE signal break-through OTN：(1) FlexE does not perceive (FlexE unaware), i.e., regards n*100G FlexE signals as n roads
Independent 100GE (gigabit Ethernet, Gigbit Ethernet) signal, passes through the roads n ODU4 (optical data unit-
4, light data unit -4) complete carrying and transmission.(2) FlexE perceives (FlexE aware), i.e., to n*100G FlexE signals
It is parsed, deletes the invalid time slot of FlexE signals, carrying and transmission are completed by 1 tunnel or multichannel ODUflex.(3)FlexE
It terminates (FlexE terminate), i.e., deep analysis is carried out to n*100G FlexE signals, by the FlexE of multichannel different rates
Client traffic parses, and then the FlexE client traffics of multichannel different rates are completed carrying by ODUflex respectively and passed
It send.
With the evolution of FlexE technologies, FlexE is possible to become a kind of transmission network technology as OTN.Therefore, it
The transmitting function for realizing FlexE needs to solve the problems, such as network management end to end and monitoring in FlexE.
Invention content
In view of this, the application provides a kind of method, apparatus and system of service bearer, can solve can not in FlexE
Carry out network management end to end and monitoring problem.
In a first aspect, the application provides a kind of method that business is sent, including：Sending ending equipment obtains flexible Ethernet
FlexE client signals；Convert the FlexE client signals to FlexE traffic frames, the FlexE traffic frames include at least one
A first expense code block and at least one data code block, at least one first expense code block is for carrying the FlexE visitors
The Overhead of family signal, at least one data code block are used to carry the payload information of the FlexE client signals；By institute
It states FlexE traffic frames to be mapped in the one or more time slot of physical channel, generates FlexE expense frames, the FlexE expenses frame packet
The second expense code block is included, the second expense code block is used to carry the Overhead of the FlexE expenses frame；By the FlexE
Expense frame is sent by the physical channel.
In the application, it converts FlexE client signals to FlexE traffic frames, and FlexE is carried by FlexE traffic frames
The Overhead of client signal may be implemented to the network management end to end of FlexE client signals and monitoring.
It is described to convert the FlexE client signals to FlexE traffic frames in a kind of possible realization method, including：It will
It is inserted into the FlexE traffic frames at least one first expense Code Block Cycle.
In the application, the first expense code block can periodically carry in FlexE traffic frames, for example, FlexE traffic frames
In every the code block of preset quantity there are one or more first expense code blocks.
It is described to convert the FlexE client signals to FlexE traffic frames in a kind of possible realization method, including：With
The 1/ (2 of one FlexE client signal frame lengthn) it is unit, the FlexE client signals are converted to the FlexE business
Frame, wherein n is greater than or equal to 0.
In the application, converts the FlexE client signals of preset length to FlexE traffic frames, reduce signal processing
Complexity improves efficiency of transmission.
In a kind of possible realization method, the FlexE traffic frames are mapped in the one or more time slot of physical channel
Before, the method further includes：Rate adaptation is carried out to the FlexE client signals.
It is described to convert the FlexE client signals to FlexE traffic frames in a kind of possible realization method, including：It will
The Overhead of the FlexE client signals is encoded, and at least one first expense code block is generated.
In a kind of possible realization method, at least one first expense code block is located at the frame of the FlexE traffic frames
Head, and/or, at least one first expense code block is between any two data code block of FlexE traffic frames.
Second aspect, the application provide a kind of method that business receives, including：Receiving device receives spirit from physical channel
Ethernet FlexE expense frames living；The Overhead for identifying the FlexE expenses frame is believed according to the expense of the FlexE expenses frame
Breath obtains FlexE traffic frames, the expense letter of the FlexE expenses frame from one or more time slot demappings of the physical channel
Breath is carried by the second expense code block of the FlexE expenses frame；Convert the FlexE traffic frames to FlexE client signals,
The FlexE traffic frames include at least one first expense code block and at least one data code block, and described at least one first opens
Pin code block is used to carry the Overhead of the FlexE client signals, and at least one data code block is described for carrying
The payload information of FlexE client signals.
In the application, it converts FlexE traffic frames to FlexE client signals, and FlexE is carried by FlexE traffic frames
The Overhead of client may be implemented to the network management end to end of FlexE client signals and monitoring.
It is described to convert the FlexE traffic frames to FlexE client signals in a kind of possible realization method, including：From
At least one first expense code block is periodically recognized in the FlexE traffic frames.
In the application, the first expense code block can be periodically identified from FlexE traffic frames, for example, FlexE business
In frame one or more first expense code blocks are recognized every the code block of preset quantity.
It is described to convert the FlexE traffic frames to FlexE client signals in a kind of possible realization method, including：With
The 1/ (2 of one FlexE business frame lengthn) it is unit, convert the FlexE traffic frames to FlexE client signals, wherein n
More than or equal to 0.
In the application, converts the FlexE traffic frames of preset length to FlexE client signals, reduce signal processing
Complexity improves efficiency of transmission.
It is described to convert the FlexE traffic frames to FlexE client signals in a kind of possible realization method, including：It deletes
Except the synchronous head bit of the FlexE traffic frames, the FlexE traffic frames are decoded, and fill reserved field.
In a kind of possible realization method, at least one first expense code block is located at the frame of the FlexE traffic frames
Head, and/or, at least one first expense code block is between any two data code block of FlexE traffic frames.
The third aspect, the application provide a kind of sending device, including：Receiving module, for obtaining flexible Ethernet FlexE
Client signal；Processing module, for converting the FlexE client signals to FlexE traffic frames, the FlexE traffic frames packet
At least one first expense code block and at least one data code block are included, at least one first expense code block is described for carrying
The Overhead of FlexE client signals, at least one data code block are used to carry the payload letter of the FlexE client signals
Breath；The FlexE traffic frames are mapped in the one or more time slot of physical channel, FlexE expense frames, the FlexE are generated
Expense frame includes the second expense code block, and the second expense code block is used to carry the Overhead of the FlexE expenses frame；It sends
Module, for sending the FlexE expenses frame by the physical channel.
In a kind of possible realization method, the processing module is used for：By at least one first expense Code Block Cycle
It is inserted into the FlexE traffic frames to property.
In a kind of possible realization method, the processing module is used for：With the 1/ of a FlexE client signal frame length
(2n) it is unit, the FlexE client signals are converted to the FlexE traffic frames, wherein n is greater than or equal to 0.
In a kind of possible realization method, the processing module is additionally operable to：Rate is carried out to the FlexE client signals
Adaptation.
It is described to convert the FlexE client signals to FlexE traffic frames in a kind of possible realization method, including：It will
The Overhead of the FlexE client signals is encoded, and at least one first expense code block is generated.
In a kind of possible realization method, at least one first expense code block is located at the frame of the FlexE traffic frames
Head, and/or, at least one first expense code block is between any two data code block of FlexE traffic frames.
Fourth aspect, the application provide a kind of receiving device, including：Receiving module, it is flexible for being received from physical channel
Ethernet FlexE expense frames；Processing module, the Overhead of the FlexE expenses frame, is opened according to the FlexE for identification
The Overhead of pin frame obtains FlexE traffic frames from one or more time slot demappings of the physical channel, and the FlexE is opened
The Overhead for selling frame is carried by the second expense code block of the FlexE expenses frame；It converts the FlexE traffic frames to
FlexE client signals, the FlexE traffic frames include at least one first expense code block and at least one data code block, described
At least one first expense code block is used to carry the Overhead of the FlexE client signals, at least one data code block
Payload information for carrying the FlexE client signals.
In a kind of possible realization method, the processing module is used for：Periodically know from the FlexE traffic frames
It is clipped at least one first expense code block.
In a kind of possible realization method, the processing module is used for：With the 1/ (2 of a FlexE business frame lengthn)
For unit, it converts the FlexE traffic frames to FlexE client signals, wherein n is greater than or equal to 0.
In a kind of possible realization method, the processing module is used for：Delete the synchronous head ratio of the FlexE traffic frames
Spy is decoded the FlexE traffic frames, and fills reserved field.
In a kind of possible realization method, at least one first expense code block is located at the frame of the FlexE traffic frames
Head, and/or, at least one first expense code block is between any two data code block of FlexE traffic frames.
Fourth aspect, the embodiment of the present invention provide a kind of network system, including the third aspect or the third aspect any one
The reception of any one possible realization method of the sending device and fourth aspect or fourth aspect of possible realization method is set
It is standby.
The another aspect of the application provides a kind of computer readable storage medium, in the computer readable storage medium
It is stored with instruction, when run on a computer so that computer executes the method described in above-mentioned various aspects.
The another aspect of the application provides a kind of computer program product including instruction, when it runs on computers
When so that computer executes the method described in above-mentioned various aspects.
Description of the drawings
It, below will be to describing background in order to illustrate more clearly of the embodiment of the present invention or technical solution in the prior art
Used attached drawing is briefly described when technology and embodiment.
Fig. 1 is the network architecture schematic diagram of FlexE signals break-through OTN of the prior art a kind of；
Fig. 2 is the network architecture schematic diagram of OTN signals break-through FlexE provided in an embodiment of the present invention a kind of；
Fig. 3 is a kind of frame structure schematic diagram of OTN frames of the prior art；
Fig. 4 is the schematic diagram that a kind of OTN frames provided in an embodiment of the present invention are converted into FlexE traffic frames；
Fig. 5 a are a kind of code block form schematic diagrams of FlexE traffic frames provided in an embodiment of the present invention；
Fig. 5 b are a kind of code block form schematic diagrams of FlexE traffic frames provided in an embodiment of the present invention；
Fig. 6 a are a kind of form schematic diagrams of FlexE traffic frames provided in an embodiment of the present invention；
Fig. 6 b are the form schematic diagrams of another kind FlexE traffic frames provided in an embodiment of the present invention；
Fig. 7 is a kind of form schematic diagram of expense code block provided in an embodiment of the present invention；
Fig. 8 is a kind of form schematic diagram of FlexE traffic frames provided in an embodiment of the present invention；
Fig. 9 is the processing schematic diagram that a kind of business provided in an embodiment of the present invention is sent；
Figure 10 is a kind of processing schematic diagram of time slot distribution provided in an embodiment of the present invention；
Figure 11 is a kind of processing schematic diagram being inserted into FlexE expense code blocks provided in an embodiment of the present invention；
Figure 12 is the processing schematic diagram that a kind of business provided in an embodiment of the present invention is sent；
Figure 13 is the processing schematic diagram that a kind of business provided in an embodiment of the present invention is sent；
Figure 14 is the processing schematic diagram that another business provided in an embodiment of the present invention is sent；
Figure 15 is the processing schematic diagram that a kind of business provided in an embodiment of the present invention receives；
Figure 16 is a kind of network architecture schematic diagram provided in an embodiment of the present invention；
Figure 17 is the exemplary flow chart for the method that a kind of business provided in an embodiment of the present invention is sent；
Figure 18 is the exemplary flow chart for the method that a kind of business provided in an embodiment of the present invention receives；
Figure 19 is a kind of structural schematic diagram of sending device provided in an embodiment of the present invention；
Figure 20 is a kind of structural schematic diagram of receiving device provided in an embodiment of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.
Fig. 2 is the network architecture schematic diagram of OTN signals break-through FlexE provided in an embodiment of the present invention a kind of.Such as Fig. 2 institutes
Show, the client traffic of customer equipment 204 can be packaged into OTN signals by OTN 201, carried and passed by FlexE 202
The defeated OTN signals, OTN 203 receive the OTN signals, and client traffic is restored from OTN signals and is sent to customer equipment
205.Alternatively, the client traffic of customer equipment 205 can be packaged into OTN signals by OTN 203, held by FlexE 202
The OTN signals are carried and transmit, OTN 201 receives the OTN signals, and client traffic is restored from OTN signals and is sent to visitor
Family equipment 204.Customer equipment 204,205 can be the equipment such as data center, router, server, computer.By OTN signals
When being carried and transmitted by FlexE 202, it is related to converting the frame format of OTN signals to and is suitble to transmit in FlexE
The frame format of FlexE traffic frames.The frame format of FlexE traffic frames provided in an embodiment of the present invention and the frame format of OTN frames have
Good corresponding relationship, simplifies the process of signal processing, and improves the efficiency of signal processing.Also, in FlexE industry
The Overhead that OTN frames are remained in business frame, can realize network management end to end and monitoring.
In the embodiment of the present invention, OTN signals and OTN frames may refer to same target, such as OTUk (optical
Transport unit-k, optical transport unit-k), OTUCn (optical transport unit-Cn, optical transport unit-Cn)
Deng；Including ODUk (optical data unit-k, light data unit-k), ODUflex (optical data unit-flex,
Flexible light data unit), ODUCn (optical data unit-Cn, light data unit-Cn) etc.；Can also include OPUk
(optical payload unit-k, optical payload unit-k), OPUflex (optical payload unit-flex, flexibly
Optical payload unit), OPUCn (optical payload unit-Cn, optical payload unit-Cn) etc..Wherein, k can take 0,1,2,
2e, 3,4 etc., Cn represents the integral multiple of 100G.
Fig. 3 is a kind of frame structure schematic diagram of OTN frames of the prior art.As shown in figure 3, with ODUk's or ODUflex
It is illustrated for frame structure.OTN frames may include 4 row x3824 row bytes.Wherein, the 1st row are classified as OTN frames to the 16th
Overhead, the payload information that the 17th row are classified as OTN frames to the 3824th.The Overhead of OTN frames may include frame alignment expense,
OTU (optical transport unit, optical transport unit) expense, OPU (optical payload unit, light payload list
Member) expense and ODU (optical data unit, light data unit) expense etc..It may include FAS (frame that frame, which is aligned expense,
Alignment signal, Frame Alignment Signal) and/or MFAS (multiframe alignment signal, multi-frame alignment letter
Number).ODU expenses may include：PM (path monitoring, channel monitoring), TCM (tandem connection
Monitoring, series connection link monitoring), EXP (experimental, experiment), GCC (general communication
Channel, all purpose communication channel), APS (automatic protection switching, automatic protection switching), PCC
(protection communication channel protect communication port) etc..Wherein, PM can also include TTI (trail
Trace identifier, trail trace mark), (bit interleaved parity-level 8, bit interleaves very BIP8
Even parity check-level 8), BEI (backward error indication, backward error code instruction), BDI (backward
Defect indication, backward defect instruction), STAT (state) etc..
Transform mode one：
Fig. 4 is the schematic diagram that a kind of OTN frames provided in an embodiment of the present invention are converted into FlexE traffic frames.As shown in figure 4,
The FlexE traffic frames being transformed by an OTN frame may include starting code block S, 1910 data code block D and 1 frame
Tail code block T.S, D, T code block can be 66B code blocks.66B code blocks are referred to as 64B/66B code blocks, include the synchronous head of 2 bits
With the data of 64 bits.It in one example, can be with the 1/ (2 of an OTN frame lengthn) it is unit, from the banner word of OTN frames
Section starts, and every 8 bytes are converted into a 66B code block.Then the 1/ (2 of an OTN framen) can be converted into one include 1912/
(2n) a 66B code blocks FlexE traffic frames.Wherein, FlexE traffic frames may include starting code block S, 1912/ (2n) -2
Data code block D and 1 postamble code block T.Wherein, n is greater than or equal to 0.As n=0, carried out as unit of an OTN frame length
Conversion, the FlexE traffic frames after conversion include 1912 code blocks.As n=1, turned as unit of 1/2 OTN frame length
Change, the FlexE traffic frames after conversion include 956 code blocks.As n=2, converted as unit of 1/4 OTN frame length,
FlexE traffic frames after conversion include 478 code blocks.And so on.In practical applications, n can also be taken to be less than 0, such as n
=-1, -2 etc..The code block quantity that then a FlexE traffic frame includes can be 3824,7648 etc..
In the example, illustrated so that OTN frames are ODUk or ODUflex as an example.Certainly, the embodiment of the present invention is also applied for
The quantity of OPUk, OPUflex etc., the 66B code blocks that the FlexE traffic frames being transformed by OPUk or OPUflex include can not
It is same as the FlexE traffic frames being transformed by ODUk or ODUflex.For example, an OPUk or OPUflex can be converted into including
The FlexE traffic frames of 1905 66B code blocks.
It is illustrated by taking n=0 as an example, i.e., 1 OTN frame is converted into the FlexE traffic frames including 1912 66B code blocks (such as
FlexE traffic frames shown in Fig. 4).Fig. 5 a are a kind of code block format signals of FlexE traffic frames provided in an embodiment of the present invention
Figure.As shown in Figure 5 a, the beginning code block of FlexE traffic frames, i.e. S code blocks can carry the frame head of i+1 frame ODUk or ODUflex
Information.The postamble code block of FlexE traffic frames, i.e. T code blocks can carry the trailer information of the i-th frame ODUk or ODUflex.S code blocks
Idle field D1 can also be utilized to carry the last byte in the i-thth frame ODUk or ODUflex trailer information.Fig. 5 b are
A kind of code block form schematic diagram of FlexE traffic frames provided in an embodiment of the present invention.As shown in Figure 5 b, the number of FlexE traffic frames
According to code block, i.e. D code blocks can carry the intermediary bytes of ODUk or ODUflex, i.e., other than frame originating point information and trailer information
Byte.
(1) S code blocks, can be by the frame originating point information of OTN frames, i.e., 8 overhead bytes are converted into before the first row.S code blocks can
With the synchronous head " 10 " including 2 bits, the code block type field " 0x78 " of 8 bits, remaining 7 bytes are for carrying OTN frames
8 overhead bytes before the first row.It, can be to 8 expenses of OTN frames since 7 bytes are not enough to carry 8 overhead bytes completely
Byte is compressed.For example, the 1st~6 byte of OTN frame the first rows carries fixed pattern-information,
The repetition byte of OTN frame the first rows can be abandoned, such as any two " F6F6 " byte is lost by " 0xF6F6F6282828 "
It abandons, or any two " 2828 " byte is abandoned.In this way, the frame originating point information of OTN frames, i.e., 8 overhead byte pressures before the first row
It is condensed to 6 bytes.In another example, the 5th, 6 byte of OTN frame the first rows can be placed on and be retained by OTN frame overheads area
In the 66B code blocks that byte is transformed, the 5th, 6 byte for being equivalent to OTN frame the first rows occupies OTN frame overheads area reserved word
Section is in 66B codes reserved field in the block.For example, the 5th of OTN frame the first rows the, 6 byte can be occupied by the second row of OTN frames
1, the 66B codes reserved word in the block that the 9-14 overhead area reserve bytes of 2 overhead area reserve bytes or fourth line are transformed
Section.
(2) T code blocks can be converted by the trailer information of OTN frames, i.e. last 8 bytes of fourth line.T code blocks can be with
Synchronous head " 10 " including 2 bits, the code block type field " 0xff " of 8 bits, remaining 7 bytes are for carrying OTN frames the
Last 8 bytes of four rows.Since the overhead byte of S code blocks carrying is through overcompression, there is 1 spare field D1 that can hold in S code blocks
Carry the trailer information of OTN frames.In another example, a byte of OTN frame postambles can also be placed on to OTN frame overheads area guarantor
It writes down characters in the reserved field of 66B code blocks that section is transformed.
As shown in Figure 5 a, the frame originating point information of i+1 frame ODUk or ODUflex, " 0xF6F6F6282828+MFAS+D1 " pressure
After being condensed to 6 bytes, it is positioned in D2~D7 fields of S code blocks.The D1 fields of S code blocks can be used for carry the i-th frame ODUk or
A byte D8 in the trailer information of ODUflex.The trailer information of i-th frame ODUk or ODUflex, " D1D2D3D4D5D6D7 "
Totally 7 bytes are positioned in D1~D7 fields of T code blocks.
(3) D code blocks, can be by the intermediary bytes of OTN frames, i.e., in addition to 8 overhead bytes before the first row and fourth line last 8
Byte except a byte is converted into.As shown in Figure 5 b, D code blocks may include the synchronous head " 01 " of 2 bits, remaining 8
Byte is used to carry arbitrary 8 intermediary bytes of OTN frames.For example, can a D code be positioned over continuous 8 intermediary bytes
In D1~D8 fields of block.
Transform mode two：
Fig. 6 a are a kind of form schematic diagrams of FlexE traffic frames provided in an embodiment of the present invention.Fig. 6 b are implementation of the present invention
The form schematic diagram for another FlexE traffic frames that example provides.In one example, expense code block can be placed on
The frame header position of FlexE traffic frames.As shown in Figure 6 a, a FlexE frame may include x 66B expense code block OH and continuous y
A 66B data code blocks D.The frame header position in FlexE traffic frames is arranged in x 66B expense code block.It, can also in another example
By the expense code block of FlexE traffic frames to be inserted in FlexE traffic frames between certain period.As shown in Figure 6 b, a FlexE industry
Business frame may include p 66B expense code block of z groups.As unit of p 66B expense code block, it is inserted according between certain period
Z position of FlexE traffic frames.Alternatively, every q 66B data code block is previously inserted into p 66B expense code block.Such as Fig. 6 a or 6b
Shown, expense code block can carry the one or more Overhead monitored for end-to-end management, for example, TTI, BIP8,
In BEI, BDI, STAT any one or more etc..In addition, expense code block can be also used for carrying frame head positioning expense (FAS/
MFAS) etc..
Fig. 7 is a kind of form schematic diagram of expense code block provided in an embodiment of the present invention.As shown in fig. 7, expense code block can
Think 66B code blocks, includes the synchronous head " 10 " of 2 bits, the code block type field " 0x4b " of 8 bits.In existing standard,
" 0x4b " is the code block type having been used, therefore " 0xa " code block type field that 4 bits can also be arranged is identified.Or
Person can also set code block type field to not used code block type in existing standard, such as " 0x4C ".If expense code
Code block type field in the block occupies 8 bits, then remaining 56 bits can be used for carrying the Overhead of OTN frames.But OTN
Every a line of frame includes 16 overhead bytes, if the overhead byte of every a line of OTN frames is completely placed in 2 expense code blocks
In, then each expense code block should carry the overhead byte of OTN frames comprising 64 bits.Therefore, the Section Overhead word in OTN frames
Section, such as the bytes such as TCM, APS, PCC can abandon, and reserved field RES is set as in expense code block, or in expense code block
Field in fill full 0.
Fig. 8 is a kind of form schematic diagram of FlexE traffic frames provided in an embodiment of the present invention.With the 1st kind of transform mode class
It seemingly, can be with the 1/ (2 of an OTN frame lengthn) it is unit, since the start byte of OTN frames, every 8 bytes are converted into one
A 66B code blocks.Similarly, it is illustrated by taking n=0 as an example for ODUk or ODUflex with OTN frames.As shown in figure 8, with one
ODUk or ODUflex frames are that preceding 16 bytes of unit, ODUk or ODUflex per a line are converted into two 66B expense code blocks, are remained
3808 remaining bytes are converted into 476 66B data code blocks.Every 476 66B data code blocks are inserted into 2 66B expense code blocks, therefore 4
476 66B data code blocks of group are inserted into 8 66B expenses code blocks (expense code block OH1, expense code block OH2 ... expense code blocks altogether
OH7, expense code block OH8).One ODUk or ODUflex is converted into one and adds 4x476 66B comprising 8 66B expense code blocks
The FlexE traffic frames of data code block.Expense code block OH1 carries the 1st~8 overhead byte of the 1st row of ODUk or ODUflex, opens
Pin code block OH2 can carry the 9th~16 overhead byte of the 1st row of ODUk or ODUflex.Expense code block OH3 can be carried
The 1st~8 byte overhead byte of the 2nd row of ODUk or ODUflex, expense code block OH4 can carry the of ODUk or ODUflex
2 overhead bytes of row the 9th~16.Expense code block OH5 can carry the 1st~8 overhead byte of the 3rd row of ODUk or ODUflex,
Expense code block OH6 can carry the 9th~16 overhead byte of the 3rd row of ODUk or ODUflex.Expense code block OH7 can be carried
The 1st~8 overhead byte of the 4th row of ODUk or ODUflex, expense code block OH8 can carry the 4th row of ODUk or ODUflex
With the 9th~16 overhead byte.
(1) expense code block can be used for carrying the Overhead (overhead byte) of OTN frames.As shown in figure 8, expense code block
OH1 can carry frame head positioning expense FAS and MFAS, expense code block OH6 can carry path management monitoring expense PM (including
TTI, BIP8, BDI, BEI etc.).Reserved field can be set in expense code block OH2, OH3, OH4, OH5, OH7, OH8.Certainly, when
When needing to add other overhead bytes of OTN frames, it can be arranged in the reserved field of expense code block.In the embodiment of the present invention,
OAM (operation, administration and maintenance, the behaviour of OTN frames are remained in FlexE traffic frames
Make, management and safeguard) network management end to end and monitoring may be implemented using the Overhead of OTN frames in characteristic.
(2) D code blocks can be used for carrying the payload information (bytes of payload) of OTN frames.The format of D code blocks is referred to figure
Shown in 5b.17th to 3824th byte of the OTN frames per a line can be converted into 476 D code blocks, and D can be 66B code blocks, packet
2 bit synchronous heads " 01 " are included, remaining 8 bytes can place appointing in the 17th to the 3824th byte of the OTN frames per a line
8 bytes of meaning.For example, continuous 8 bytes in OTN frames payload section can be positioned in D1~D8 fields of a D code block.
In the embodiment of the present invention, if by FlexE traffic frames be converted into OTN frames, can will be every in FlexE traffic frames
2 bit synchronous heads of a 66B code blocks are deleted, and convert the code block type field of expense code block to the reserve bytes of OTN frames.One
FlexE traffic frames can just be converted into an OTN frame, and can recover original Overhead of OTN frames.The present invention is real
There are good correspondences on frame structure with OTN frames for the FlexE traffic frames for applying in example, and OTN frames are converted by FlexE traffic frames
When, it is not necessary that FlexE traffic frames to be mapped in the payload of OTN frames, and OTN frame overheads are regenerated, it is multiple to reduce signal processing
Miscellaneous degree, improves efficiency of transmission.
The processing procedure of FlexE business transmission is described below：
Fig. 9 is the processing schematic diagram that a kind of business provided in an embodiment of the present invention is sent.As shown in figure 9, FlexE interfaces are logical
Cross binding N number of PHY (also referred to as PHY member or FlexE member) channel formed FlexE groups (FlexE group, also referred to as
FlexE member's group), and FlexE groups by being bound by N number of channels PHY transmit the FlexE business of multichannel different rates
(also referred to as FlexE client, FlexE client signals, FlexE client traffics etc.).At least three road FlexE industry are shown in Fig. 9
Business, for example, FlexE business may include OTN signals (or referred to as OTN business), Packet Service, ether business etc..Wherein, often
The bandwidth in one channel PHY can be 100G, 200G, 400G etc..For example, in existing FlexE standards, using the PHY of 100G
Channel.In the shim layers (Calendar or main layereds) of FlexE, FlexE groups can be divided into 20xN 5G granularity
Time slot (Calendar slot).Each channels PHY are divided into 20 5G time slots.
Step 900, at least FlexE business all the way is obtained.Such as ODUk or ODUflex, FlexE business #a and FlexE industry
Be engaged in #z etc..The present embodiment is illustrated by taking ODUk or ODUflex as an example, and FlexE business #a and FlexE business #z etc. is in Figure 12 institutes
The embodiment shown is described.ODUk or ODUflex can be carried and be passed by FlexE as the client signal of FlexE
It is defeated.
Step 901, the FlexE business got is converted to FlexE traffic frames.For example, for ODUk or ODUflex,
Any one transform mode of above-described embodiment may be used, or combine two or more arbitrary transform modes, by ODUk
Or ODUflex is converted into FlexE traffic frames.
Step 902, rate adaptation is carried out to FlexE traffic frames.
The purpose of rate adaptation is in order in step 903 so that FlexE traffic frames are in shim layers of occupancy integers of FlexE
A time slot.
For example, if converting ODUk or ODUflex to the FlexE business described in transform mode one or transform mode two
Frame, can increase idle code block (IDLE) in FlexE traffic frames or preset special code block carries out rate adaptation.
If first ODUk or ODUflex are converted to the FlexE traffic frame A described in transform mode one, then by FlexE industry
Business frame A is converted into the FlexE traffic frame B described in transform mode two, can increase idle code block in FlexE traffic frames A
(IDLE) or preset special code block carries out rate adaptation, can also increase idle code block (IDLE) in FlexE traffic frames B
Or preset special code block carries out rate adaptation.For example, can be in the T code blocks of upper FlexE traffic frame A and next
Increase idle code block (IDLE) or preset special code block between the S code blocks of FlexE traffic frames A.Alternatively, in two FlexE
Increase idle code block (IDLE) or preset special code block between traffic frame B.The A insertions of FlexE traffic frames can be based on to be used for
The expense code block of the Overhead of OTN frames is carried to realize that FlexE traffic frames A is converted into FlexE traffic frames B.FlexE traffic frames
The 66B code blocks of A may include S code blocks, T code blocks, D code blocks, bell idles it is in the block any one or more.FlexE traffic frames B's
Frame format may refer to embodiment as shown in Figure 8.It can regard FlexE traffic frames A 66B code blocks as FlexE traffic frames B
D code blocks.For example, in FlexE traffic frames A, every 476 66B code blocks are inserted into 2 66B expense code blocks, generate FlexE business
Frame B.Alternatively, in FlexE traffic frames A, every 478 66B code blocks are inserted into 2 66B expense code blocks, in this way, a FlexE business
Frame A is just converted into a FlexE traffic frames B.
Step 903, FlexE group signals are generated：It is that the FlexE traffic frames distribute one according to the bandwidth of FlexE traffic frames
Or multiple time slots, the FlexE traffic frames after rate adaptation are mapped in one or more time slots of distribution.Here one
A or multiple time slots can be the arbitrary time slot in the 20xN time slot divided during shim layers of FlexE.For example, the band of ODU0
Width is 1.25G, can be that the FlexE traffic frames that ODU0 is generated distribute a 5G time slot.The bandwidth of ODU2 is 10G, Ke Yiwei
The FlexE traffic frames that ODU2 is generated distribute 2 5G time slots.If being assigned with multiple time slots, this multiple time slot can be located at same
In a channels PHY, it can also be located in the different channels PHY.
Figure 10 is a kind of processing schematic diagram of time slot distribution provided in an embodiment of the present invention.As shown in Figure 10 (with 4 PHY
Illustrated for channel), Calendar has divided 20x4 time slot, each channels PHY (or referred to as sub-Calendar)
20 time slots (being identified as 0~time slot of time slot 19) are divided.In Figure 10, when being assigned with 2 for the ODU2 FlexE traffic frames generated
Gap, 1 time slot are located at the channels PHY 1, another time slot is located at the channels PHY 2.Alternatively, 2 of the FlexE traffic frames that ODU2 is generated
Time slot can also be respectively positioned in the channels PHY 1.
Step 904, PHY channel signals are generated：By the FlexE group signals for carrying FlexE traffic frames be distributed to one or
Behind multiple channels PHY, and add the Overhead of FlexE expense frames.The Overhead of FlexE expense frames may include FlexE
Group number, PHY channel numbers, Time Slot Occupancy instruction information etc..PHY channel signals can be transmitted with the format of FlexE expense frames,
PHY channel signals can correspond to FlexE expenses frame all the way all the way.As shown in Figure 10,4 road PHY channel signals are generated, wherein
ODU2 is carried in PHY channel signals 1, PHY channel signals 2.
Figure 11 is a kind of processing schematic diagram being inserted into FlexE expense code blocks provided in an embodiment of the present invention.FlexE expense frames
The Overhead FlexE expense code blocks that may include several be inserted into PHY channel signals with certain period.Such as Figure 11 institutes
Show, which can be that arbitrary PHY channel signals all the way are formed.It in one cycle, can be in every 20x1023
1 FlexE expense code block is inserted into before a data code block.One FlexE expense frame may include continuous 8 periods, i.e., 8
FlexE expense code blocks, in addition 8x (20x1023) a data code block.Wherein, several periodicity can be transmitted by 1 time slot
The data code block of appearance.As shown in figure 11, the data code block " 1 " that every 20 Code Block Cycles of the 1st slot transmission occur, the 2nd
The data code block " 2 " ... that a every 20 Code Block Cycles of slot transmission occur, every 20 Code Block Cycles of the 20th slot transmission
The data code block " 20 " of appearance.FlexE traffic frames can be carried in the arbitrary code block of 20x1023 data code block, and be passed through
The corresponding time slot of data code block of carried is transmitted.For example, the FlexE traffic frames generated by ODU0 are in data code block " 2 "
Position, and be transmitted by the 2nd time slot.
Step 905, scrambler is carried out to the PHY channel signals of generation.
Step 906, it is inserted into alignment word (alignment marker, AM) in PHY channel signals, is used for the same PHY
The alignment of middle difference virtual channel.AM can be as the frame origin identification of PHY channel signals.
Step 907, FEC coded treatments are executed to PHY channel signals, and PHY channel signals are sent by treated.
In above-mentioned several steps, some steps can not also execute or execution sequence is not limited to above-mentioned example.Example
Such as, step 902, step 907 etc. can not also execute.Step 902 can also execute before step 901.
Figure 12 is the processing schematic diagram that a kind of business provided in an embodiment of the present invention is sent.As shown in figure 12 with the area of Fig. 9
It is not, the embodiment of the present invention can also convert the FlexE business other than ODUk or ODUflex to above-described embodiment
Any one FlexE traffic frame.
Step 1200, at least FlexE business all the way is obtained.Such as FlexE business #a, FlexE business #b, FlexE business #
Z etc..
Step 1201, rate adaptation is carried out to the FlexE business got.
For example, carrying out rate adaptation to FlexE business #a.FlexE business #a can be Packet Service or ether business (example
Such as GE, 10GE).Packet Service can be made of a series of Ether frames and frame gap.The length of each Ether frame can not be consolidated
It is fixed, including 1 66B starting code block (S), several 66B data code blocks (D) and 1 postamble code block (T).Frame gap may include
Several idle code blocks (IDLE).It can increase and/or delete idle code block (IDLE) and FlexE business #a progress rates are fitted
Match.
Step 1202, FlexE business is converted to FlexE traffic frames.
For example, converting FlexE business #a to FlexE traffic frames.For example, can be in Packet Service, every 476 66B
Code Block Cycle it is inserted into 2 66B expense code blocks.4 groups continuous (+2 66B expenses code blocks of 476 66B code blocks) constitute one
FlexE traffic frames.The frame format of FlexE traffic frames is referred to shown in Fig. 8.The 66B code blocks of Packet Service may include S codes
Any one or more of block, D code blocks, T code blocks, IDLE code blocks.The 66B expenses code block of insertion can be that transmitting terminal is preset,
Or generated according to Packet Service.66B expenses code block can carry the one or more expenses monitored for end-to-end management
Information, for example, in TTI, BIP8, BEI, BDI, STAT any one or more etc..
Optionally, step 1201 can execute before step 1202, can also execute after step 1202.Alternatively,
Step 1201 can not also execute.
Step 1203-1207 can refer to step 903-907, and details are not described herein again.The FlexE that the embodiment of the present invention proposes
Business frame structure is suitable for any one FlexE business.Since FlexE traffic frames and OTN frames have good correspondence, when
When FlexE signals need break-through OTN, the processing complexity that FlexE traffic frames are converted into OTN frames is reduced, improves conversion effect
Rate.Using the expense of FlexE traffic frames, network management end to end and monitoring may be implemented.
Figure 13 is the processing schematic diagram that a kind of business provided in an embodiment of the present invention is sent.As shown in figure 13, FlexE business
Can be the ODUKm in OTN frames.For example, ODUKm can be the ODUCn for the integral multiple that rate is 100G, alternatively, the speed of ODUKm
Rate can also be the integral multiple etc. of 200G.
Step 1300, can by ODUKm distribute at the roads m ODUK (ODUK#1, ODUK#2 ..., ODUK#m), be equivalent to by
FlexE business becomes the roads m from 1 tunnel.The frame structure of ODUKm can be by m ODUK interframe insert group at the frame format of each ODUK frames
OTN frame structures as shown in Figure 3 can be referred to.
Step 1301, it will be separately converted to any one FlexE traffic frame of the embodiment of the present invention per ODUK all the way, obtain
The roads m FlexE traffic frames.For example, using any one transform mode above FlexE traffic frames will be converted into per ODUK all the way.
In another example, ODUKm can not also be distributed into the roads m ODUK, FlexE business all the way when ODUKm is regarded as is converted into
FlexE traffic frames.For example, a FlexE traffic frame can be converted an ODUKm to, 1/m ODUKm can also be converted
It, can also be by 1/ (2 for a FlexE traffic framenXm) a ODUKm is converted into a FlexE traffic frame.
Step 1302-1207 can refer to step 902-907, and details are not described herein again.
Figure 14 is the processing schematic diagram that another business provided in an embodiment of the present invention is sent.As shown in figure 14 and Figure 13
Difference lies in eliminate step 1403, the time slot distribution that shim layers of FlexE.Step 1401,1404 obtain the roads m FlexE industry
It is engaged in after frame, the roads m FlexE traffic frames is distributed in the channels PHY of the roads m, the channels PHY all the way are corresponded to per FlexE traffic frames all the way.
To adding FlexE expense code blocks per the FlexE traffic frames in the channels PHY all the way with certain period, the roads m FlexE expenses are formed
Frame, the i.e. roads m PHY channel signals.Other steps are similar with Figure 13.
Figure 15 is the processing schematic diagram that a kind of business provided in an embodiment of the present invention receives.Business receive processing procedure and
The processing procedure that business is sent is substantially opposite, is illustrated by taking business receive process corresponding with Fig. 9 as an example.
Step 1500, it receives all the way or multiple PHY channel signals.
For example, in Figure 15, N number of PHY channel signals are received, for example, PHY channel signals #1, PHY channel signal #2 ...,
PHY channel signals #N etc..
Step 1501, the AM in PHY channel signals is identified, according to the AM in PHY channel signals to multiple in the PHY of the road
Virtual channel is aligned, and AM, the PHY channel signals after being aligned are deleted.
Step 1502, fec decoder is carried out to the PHY channel signals recovered.
Step 1503, descrambling code is carried out to PHY channel signals.
Step 1501-1503 and step 905-907 reverse process each other, if transmitting terminal is not carried out step 905-907
One or more steps, receiving terminal can not also carry out corresponding reverse process.For example, if transmitting terminal does not carry out FEC
Coding, receiving terminal also can be without fec decoder.
Step 1504, Overhead of the extraction per the FlexE expense frames of PHY channel signals all the way, N number of channels PHY are believed
Number revert to FlexE group signals.
Step 1505, demapping obtains FlexE traffic frames from one or more time slots of FlexE group signals.
For example, the expense code Time Slot Occupancy in the block of parsing FlexE expense frames indicates information, from the one of FlexE group signals
Demapping obtains FlexE traffic frames in a or multiple time slots.
Step 1506, rate adaptation is carried out to FlexE traffic frames.
For example, increasing and/or deleting idle code block (IDLE) or preset special in any position of FlexE traffic frames
Code block, to realize rate adaptation.
Optionally, if it is the FlexE industry as described in transform mode two that demapping, which obtains FlexE traffic frames, in step 1505
Business frame (FlexE traffic frame B), can first convert FlexE traffic frames B to the FlexE traffic frames as described in transform mode one
(FlexE traffic frame A) is then based on FlexE traffic frames A and carries out rate adaptation.The mode for realizing rate adaptation, can be upper one
Increase or delete IDLE code blocks between the T code blocks of a FlexE traffic frames and the S code blocks of next FlexE traffic frames.
Step 1507, the expense code block for identifying FlexE traffic frames, converts FlexE traffic frames to ODUk or ODUflex.
For example, there are 2 expense code blocks in every 476 data code blocks of FlexE traffic frames.FlexE traffic frames can be periodically detected
Expense code block, when getting frame alignment expense FAS and/or MFAS, it may be determined that the frame head of ODUk or ODUflex.It can be with
It gets a FlexE traffic frame and then converts the FlexE traffic frames to ODUk or ODUflex.Alternatively, getting
After one or more code blocks of FlexE traffic frames, the code block got can be converted to the partial words of ODUk or ODUflex
Section.
In above-mentioned steps, some steps can not also execute or execution sequence is not limited to above-mentioned example.For example, step
1502, step 1506 etc. can not also execute.Step 1506 can also execute after step 1507.
The embodiment of the present invention can also be applied to the scene of FlexE signal break-through OTN.Figure 16 is that the embodiment of the present invention provides
A kind of network architecture schematic diagram.As shown in figure 16, source equipment and egress equipment are located at FlexE networks 1 and FlexE nets
In network 2, the signal transmitted between two FlexE networks is carried and is transmitted by OTN.Any one OTN may be used in OTN
Frame (such as ODUflex) carries FlexE signals.FlexE signals can be FlexE traffic frames or carry FlexE business
The FlexE expense frames of frame.The edge device C connections of the edge device B and OTN of FlexE networks 1 so that FlexE networks 1 connect
Into OTN.The edge device D connections of the edge device E and OTN of FlexE networks 2 so that FlexE networks 2 are connected in OTN.
Edge device B or edge device E can be linked into OTN by FlexE member's group.
Source equipment can convert FlexE business to FlexE traffic frames, for example, FlexE business may include OTN letters
Number, Packet Service, ether business etc..FlexE traffic frames can carry 66B expense code blocks, when the edge device C of OTN is by FlexE
When traffic frame is converted into ODUflex, the 66B expense code blocks of FlexE traffic frames can be converted to overhead byte.The edge of OTN
ODUflex is reverted to FlexE traffic frames by equipment D, and egress equipment receives the FlexE traffic frames, can be by FlexE traffic frames
Revert to FlexE business.Since FlexE traffic frames can carry Overhead, may be implemented by FlexE traffic frames end-to-end
Network management and monitoring.
Figure 17 is the exemplary flow chart for the method that a kind of business provided in an embodiment of the present invention is sent.As shown in figure 17,
This method can be executed by sending ending equipment.This method may include steps of：
S1701：Obtain flexible Ethernet FlexE client signals.
What FlexE client signals can be obtained from customer equipment, can also be what sending ending equipment generated.FlexE client
Signal may include for example, OTN signals (or referred to as OTN business), Packet Service, ether business etc..
S1702：Convert the FlexE client signals to FlexE traffic frames, the FlexE traffic frames include at least one
A first expense code block and at least one data code block, at least one first expense code block is for carrying the FlexE visitors
The Overhead of family signal, at least one data code block are used to carry the payload information of the FlexE client signals.
Optionally, at least one first expense Code Block Cycle is inserted into the FlexE traffic frames.With one
The 1/ (2 of a FlexE client signals frame lengthn) it is unit, the FlexE client signals are converted to the FlexE traffic frames,
Wherein, n is greater than or equal to 0.For example, when n=0, a FlexE client signal frame can be converted to a FlexE traffic frame.
Optionally, the Overhead of the FlexE client signals is encoded, generates at least one first expense code block.It can
Choosing, at least one first expense code block is located at the frame head of the FlexE traffic frames, and/or, described at least one first
Expense code block is between any two data code block of FlexE traffic frames.For example, when FlexE client signals are OTN frames,
The Overhead of FlexE client signals may include frame head positioning expense, path management monitoring expense in any one or it is more
Kind, it can be used for network management end to end and monitoring.
S1703：The FlexE traffic frames are mapped in the one or more time slot of physical channel, FlexE expenses are generated
Frame, the FlexE expenses frame include the second expense code block, and the second expense code block is for carrying the FlexE expenses frame
Overhead.
It optionally, can be to the FlexE before FlexE traffic frames are mapped to physical channel one or more time slot
Client signal carries out rate adaptation.FlexE client signals by rate adaptation can just be mapped to the integer of physical channel
In a time slot.
S1704：The FlexE expenses frame is sent by the physical channel.
In the application, it converts FlexE client signals to FlexE traffic frames, and FlexE is carried by FlexE traffic frames
The Overhead of client signal may be implemented to the network management end to end of FlexE client signals and monitoring.
Figure 18 is the exemplary flow chart for the method that a kind of business provided in an embodiment of the present invention receives.As shown in figure 18,
This method can be executed by receiving device.This method may include steps of：
S1801：Flexible Ethernet FlexE expense frames are received from physical channel.
FlexE expenses frame can be received directly from sending ending equipment, can also be after sending ending equipment transmission, by one
It is received after a or multiple intermediate equipments.
S1802：The Overhead for identifying the FlexE expenses frame, according to the Overhead of the FlexE expenses frame from institute
The one or more time slot demappings for stating physical channel obtain FlexE traffic frames, and the Overhead of the FlexE expenses frame passes through
Second expense code block of the FlexE expenses frame carries.
The Overhead of FlexE frames may include Time Slot Occupancy instruction information, be used to indicate from which/a little time slot in obtain
FlexE traffic frames.
S1803：Convert the FlexE traffic frames to FlexE client signals, the FlexE traffic frames include at least one
A first expense code block and at least one data code block, at least one first expense code block is for carrying the FlexE visitors
The Overhead of family signal, at least one data code block are used to carry the payload information of the FlexE client signals.
Optionally, at least one first expense code block is periodically recognized from the FlexE traffic frames.With one
The 1/ (2 of a FlexE business frame lengthn) it is unit, convert the FlexE traffic frames to FlexE client signals, wherein n is big
In or equal to 0.During converting FlexE traffic frames to FlexE client signals, the FlexE traffic frames can be deleted
Synchronous head bit is decoded the FlexE traffic frames, and fills reserved field.At least one first expense code block
Positioned at the frame head of the FlexE traffic frames, and/or, at least one first expense code block is arbitrary the two of FlexE traffic frames
Between a data code block.
In the application, it converts FlexE traffic frames to FlexE client signals, and FlexE is carried by FlexE traffic frames
The Overhead of client may be implemented to the network management end to end of FlexE client signals and monitoring.
Figure 19 is a kind of structural schematic diagram of sending device 1900 provided in an embodiment of the present invention.Sending device 1900 can be with
For optical transmission equipment, ethernet device, flexible ethernet device, router, interchanger etc..As shown in figure 19, the sending device
1900 may include receiving module 1901, processing module 1902 and sending module 1903.
Receiving module 1901, for obtaining flexible Ethernet FlexE client signals.
Processing module 1902, for converting the FlexE client signals to FlexE traffic frames, the FlexE traffic frames
Including at least one first expense code block and at least one data code block, at least one first expense code block is for carrying institute
The Overhead of FlexE client signals is stated, at least one data code block is used to carry the payload of the FlexE client signals
Information；The FlexE traffic frames are mapped in the one or more time slot of physical channel, FlexE expense frames are generated, it is described
FlexE expense frames include the second expense code block, and the second expense code block is used to carry the expense letter of the FlexE expenses frame
Breath.
Sending module 1903, for sending the FlexE expenses frame by the physical channel.
Sending device 1900 can execute in any one embodiment as shown in Fig. 9, Figure 12, Figure 13, Figure 14, Figure 17
Method and step.
Figure 20 is a kind of structural schematic diagram of receiving device 2000 provided in an embodiment of the present invention.2000 He of receiving device
Sending device 1900 shown in Figure 19 can be located in the same equipment, can also be located in different equipment.Receiving device
2000 can be optical transmission equipment, ethernet device, flexible ethernet device, router, interchanger etc..As shown in figure 20, should
Receiving device 2000 may include receiving module 2001 and processing module 2002.
Receiving module 2001, for receiving flexible Ethernet FlexE expense frames from physical channel.
Processing module 2002, the Overhead of the FlexE expenses frame for identification, according to the FlexE expenses frame
Overhead obtains FlexE traffic frames from one or more time slot demappings of the physical channel, the FlexE expenses frame
Overhead is carried by the second expense code block of the FlexE expenses frame.Convert the FlexE traffic frames to FlexE visitors
Family signal, the FlexE traffic frames include at least one first expense code block and at least one data code block, described at least one
First expense code block is used to carry the Overhead of the FlexE client signals, and at least one data code block is for carrying
The payload information of the FlexE client signals.
Receiving device 2000 can execute method and step shown in any one embodiment as shown in Figure 15, Figure 18.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or its arbitrary combination real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer program
Product includes one or more computer instructions.When loading on computers and executing the computer program instructions, all or
It partly generates according to the flow or function described in the embodiment of the present invention.The computer can be all-purpose computer, special meter
Calculation machine, computer network or other programmable devices.The computer instruction can be stored in computer readable storage medium
In, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer
Instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center
User's line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, server or
Data center is transmitted.The computer readable storage medium can be any usable medium that computer can access or
It is comprising data storage devices such as one or more usable mediums integrated server, data centers.The usable medium can be with
It is magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state disk
Solid State Disk (SSD)) etc..
Claims (27)
1. a kind of method that business is sent, which is characterized in that the method includes：
Obtain flexible Ethernet FlexE client signals；
Convert the FlexE client signals to FlexE traffic frames, the FlexE traffic frames include at least one first expense
Code block and at least one data code block, at least one first expense code block is for carrying opening for the FlexE client signals
Information is sold, at least one data code block is used to carry the payload information of the FlexE client signals；
The FlexE traffic frames are mapped in the one or more time slot of physical channel, FlexE expense frames, the FlexE are generated
Expense frame includes the second expense code block, and the second expense code block is used to carry the Overhead of the FlexE expenses frame；
The FlexE expenses frame is sent by the physical channel.
2. the method as described in claim 1, which is characterized in that described to convert the FlexE client signals to FlexE business
Frame, including：
At least one first expense Code Block Cycle is inserted into the FlexE traffic frames.
3. method as claimed in claim 1 or 2, which is characterized in that described to convert the FlexE client signals to FlexE
Traffic frame, including：
With the 1/ (2 of a FlexE client signal frame lengthn) it is unit, the FlexE client signals are converted to the FlexE
Traffic frame, wherein n is greater than or equal to 0.
4. the method as described in claim 1, which is characterized in that by the FlexE traffic frames be mapped to physical channel one or
Before in multiple time slots, the method further includes：
Rate adaptation is carried out to the FlexE client signals.
5. method as claimed in claim 1 or 2, which is characterized in that described to convert the FlexE client signals to FlexE
Traffic frame, including：
The Overhead of the FlexE client signals is encoded, at least one first expense code block is generated.
6. method as claimed in claim 1 or 2, which is characterized in that at least one first expense code block is located at described
The frame head of FlexE traffic frames, and/or, any two numeric data code of at least one first expense code block in FlexE traffic frames
Between block.
7. a kind of method that business receives, which is characterized in that the method includes：
Flexible Ethernet FlexE expense frames are received from physical channel；
The Overhead for identifying the FlexE expenses frame, according to the Overhead of the FlexE expenses frame from the physical channel
One or more time slot demappings obtain FlexE traffic frames, the Overhead of the FlexE expenses frame passes through the FlexE
Second expense code block of expense frame carries；
Convert the FlexE traffic frames to FlexE client signals, the FlexE traffic frames include at least one first expense
Code block and at least one data code block, at least one first expense code block is for carrying opening for the FlexE client signals
Information is sold, at least one data code block is used to carry the payload information of the FlexE client signals.
8. the method for claim 7, which is characterized in that described to convert the FlexE traffic frames to FlexE client's letter
Number, including：
At least one first expense code block is periodically recognized from the FlexE traffic frames.
9. method as claimed in claim 7 or 8, which is characterized in that described to convert the FlexE traffic frames to FlexE visitors
Family signal, including：
With the 1/ (2 of a FlexE business frame lengthn) it is unit, convert the FlexE traffic frames to FlexE client signals,
Wherein, n is greater than or equal to 0.
10. method as claimed in claim 7 or 8, which is characterized in that described to convert the FlexE traffic frames to FlexE visitors
Family signal, including：
The synchronous head bit for deleting the FlexE traffic frames is decoded the FlexE traffic frames, and fills reserved field.
11. method as claimed in claim 7 or 8, which is characterized in that at least one first expense code block is located at described
The frame head of FlexE traffic frames, and/or, any two numeric data code of at least one first expense code block in FlexE traffic frames
Between block.
12. a kind of sending device, which is characterized in that the equipment includes：
Receiving module, for obtaining flexible Ethernet FlexE client signals；
Processing module, for converting the FlexE client signals to FlexE traffic frames, the FlexE traffic frames include at least
One the first expense code block and at least one data code block, at least one first expense code block is for carrying the FlexE
The Overhead of client signal, at least one data code block are used to carry the payload information of the FlexE client signals；It will
The FlexE traffic frames are mapped in the one or more time slot of physical channel, generate FlexE expense frames, the FlexE expenses frame
Including the second expense code block, the second expense code block is used to carry the Overhead of the FlexE expenses frame；
Sending module, for sending the FlexE expenses frame by the physical channel.
13. equipment as claimed in claim 12, which is characterized in that the processing module is used for：
At least one first expense Code Block Cycle is inserted into the FlexE traffic frames.
14. equipment as described in claim 12 or 13, which is characterized in that the processing module is used for：
With the 1/ (2 of a FlexE client signal frame lengthn) it is unit, the FlexE client signals are converted to the FlexE
Traffic frame, wherein n is greater than or equal to 0.
15. equipment as claimed in claim 12, which is characterized in that the processing module is additionally operable to：
Rate adaptation is carried out to the FlexE client signals.
16. equipment as described in claim 12 or 13, which is characterized in that described to convert the FlexE client signals to
FlexE traffic frames, including：
The Overhead of the FlexE client signals is encoded, at least one first expense code block is generated.
17. equipment as described in claim 12 or 13, which is characterized in that at least one first expense code block is located at described
The frame head of FlexE traffic frames, and/or, any two numeric data code of at least one first expense code block in FlexE traffic frames
Between block.
18. a kind of receiving device, which is characterized in that the equipment includes：
Receiving module, for receiving flexible Ethernet FlexE expense frames from physical channel；
Processing module, the Overhead of the FlexE expenses frame for identification, according to the Overhead of the FlexE expenses frame
FlexE traffic frames, the Overhead of the FlexE expenses frame are obtained from one or more time slot demappings of the physical channel
It is carried by the second expense code block of the FlexE expenses frame；
Convert the FlexE traffic frames to FlexE client signals, the FlexE traffic frames include at least one first expense
Code block and at least one data code block, at least one first expense code block is for carrying opening for the FlexE client signals
Information is sold, at least one data code block is used to carry the payload information of the FlexE client signals.
19. equipment as claimed in claim 18, which is characterized in that the processing module is used for：
At least one first expense code block is periodically recognized from the FlexE traffic frames.
20. the equipment as described in claim 18 or 19, which is characterized in that the processing module is used for：
With the 1/ (2 of a FlexE business frame lengthn) it is unit, convert the FlexE traffic frames to FlexE client signals,
Wherein, n is greater than or equal to 0.
21. the equipment as described in claim 18 or 19, which is characterized in that the processing module is used for：
The synchronous head bit for deleting the FlexE traffic frames is decoded the FlexE traffic frames, and fills reserved field.
22. the equipment as described in claim 18 or 19, which is characterized in that at least one first expense code block is located at described
The frame head of FlexE traffic frames, and/or, any two numeric data code of at least one first expense code block in FlexE traffic frames
Between block.
23. a kind of network system, which is characterized in that the system comprises the sending device as described in claim 12-17 is any,
And the receiving device as described in claim 18-22 is any.
24. a kind of computer readable storage medium, including instruction, when run on a computer so that computer executes such as
Method described in claim 1-6 any one.
25. a kind of computer readable storage medium, including instruction, when run on a computer so that computer executes such as
Method described in claim 7-11 any one.
26. a kind of computer program product including instruction, when run on a computer so that computer executes such as right
It is required that the method described in 1-6 any one.
27. a kind of computer program product including instruction, when run on a computer so that computer executes such as right
It is required that the method described in 7-11 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710301888.6A CN108809901B (en) | 2017-05-02 | 2017-05-02 | Method, equipment and system for carrying service |
| CN202110437804.8A CN113316037B (en) | 2017-05-02 | 2017-05-02 | Method, equipment and system for carrying service |
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| CN201710301888.6A CN108809901B (en) | 2017-05-02 | 2017-05-02 | Method, equipment and system for carrying service |
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| CN108809901A true CN108809901A (en) | 2018-11-13 |
| CN108809901B CN108809901B (en) | 2021-05-04 |
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| CN202110437804.8A Active CN113316037B (en) | 2017-05-02 | 2017-05-02 | Method, equipment and system for carrying service |
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| CN111817986A (en) * | 2019-04-11 | 2020-10-23 | 中国移动通信有限公司研究院 | Message processing method and device and computer readable storage medium |
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| WO2020156352A1 (en) * | 2019-01-31 | 2020-08-06 | 中兴通讯股份有限公司 | Client service transmission method, apparatus and system, and computer-readable storage medium |
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| CN113784437B (en) * | 2020-06-10 | 2023-09-26 | 烽火通信科技股份有限公司 | Method and device for realizing FlexE bearing small particle service |
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| CN113853014A (en) * | 2020-06-28 | 2021-12-28 | 中国移动通信有限公司研究院 | Information transmission method, device, related equipment and storage medium |
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| CN115065439A (en) * | 2022-08-16 | 2022-09-16 | 中国信息通信研究院 | SPN network constant bit rate service transmission method and equipment |
| WO2024087975A1 (en) * | 2022-10-26 | 2024-05-02 | 华为技术有限公司 | Communication method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113316037B (en) | 2022-08-09 |
| CN113316037A (en) | 2021-08-27 |
| CN108809901B (en) | 2021-05-04 |
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