CN106850465A

CN106850465A - A kind of Flex E method for interchanging data and switching equipment

Info

Publication number: CN106850465A
Application number: CN201611228654.5A
Authority: CN
Inventors: 杨鸿�
Original assignee: HiSilicon Technologies Co Ltd
Current assignee: HiSilicon Technologies Co Ltd
Priority date: 2016-12-27
Filing date: 2016-12-27
Publication date: 2017-06-13
Anticipated expiration: 2036-12-27
Also published as: CN106850465B

Abstract

The invention discloses a kind of Flex E method for interchanging data and switching equipment, its method includes：At least one Flex E that switching equipment receiving end/sending end equipment sends receive data frame；During the data carried on each time slot in each Flex E reception data frames are divided into using the corresponding source channels number of the timeslot number of each time slot as the data group of index；According to default source channels number and the corresponding relation of place channel number, it is mapped to by different source channels number by not chummage channel number as the data group for indexing as the data in the data group of index；Using any place channel number as the data group of index data, in being respectively mapped to be sent to the corresponding time slot of sending time slots number corresponding with any place channel number that at least one Flex E of receiving device are sent in data frame.Relative to prior art, processing data packets, forwarding are eliminated, reduce Flex E business propagation delay times.

Description

A kind of Flex E method for interchanging data and switching equipment

Technical field

The present invention relates to wireless communication technology field, more particularly to a kind of Flex E method for interchanging data and switching equipment.

Background technology

Flex Ethernet Project (flexible Ethernets have been issued on the quarterly meeting of 2015 optical interconnection forum OIF Project), a kind of more flexible Ethernet of this project definition makes full use of the capacity of light connects, reaches foundation and faster connects The purpose for connecing.Flex Ethernet are that on the basis of ethernet ieee standard, introduction passage technology optimizes Ethernet, The decoupling of MAC speed and IEEE Ethernet physical interface standards is realized, is beneficial to the independent evolution of ethernet mac speed.

According to Flex E service protocols, the data form of Flex E business datums is in original Ethernet message data form On the basis of be further added by the encapsulation format that one layer of Flex E agreement specifies.For example, the protocol layer mark that Flex E business datums are carried Knowledge information includes Flex E marks, source MAC, destination-mac address and IP address from outside to inside, wherein, Flex E are designated The channel number of the logical channel of equipment room transmission Flex E business datums, different channel number is used to distinguish different Flex E industry Business data.

In a kind of transmission scene of Flex E business, A equipment is not to B device transparent data, but A equipment is set by exchange Standby C transmits Flex E business datums to B device, if, A equipment and B device all support Flex E business, and switching equipment C is not propped up Flex E business is held, switching equipment C is received after the Flex E business datums of A equipment transmission, will be according to Flex E business The data form of data is parsed layer by layer, first removes the encapsulation format that Flex E agreements specify, obtains ether network packet, is then parsed The source MAC and destination-mac address gone out in Ethernet message format, then according to destination-mac address, ether network packet are reflected Packet is penetrated into, the forward process of packet is carried out.B device receives multiple packets of switching equipment transmission, to receiving Ether packet carry out unpacking treatment and obtain ether network packet, the encapsulation format specified further according to Flex E agreements is to Ethernet Message is packaged, and recovers Flex E business datums.

On the one hand, specify because Flex E business datums increased Flex E agreements relative to the data form of ether network packet Encapsulation format, switching equipment obtain ether network packet, carry out data forwarding according to the forward process flow of ether network packet Before, also the encapsulation format that Flex E agreements specify is parsed；On the other hand, receiving device is to the ether that receives Packet is carried out after unpacking treatment obtains ether network packet, and the encapsulation format that also specify according to Flex E agreements is to Ethernet Message is packaged, and recovers Flex E business datums, therefore, the data transmission delay of Flex E business is larger.

To sum up, in the prior art, for not supporting the switching equipment of Flex E business, handed over according to existing Ethernet bag The mode changed carries out Flex E business data transmissions and there is larger delay.

The content of the invention

The embodiment of the present invention provides a kind of Flex E method for interchanging data and switching equipment, for solving to hand in the prior art Exchange device do not supported under the application scenarios of Flex E business, the big technical problem of the data transmission delay of Flex E business.

In a first aspect, the embodiment of the present invention provides a kind of Flex E method for interchanging data, methods described includes：

At least one Flex E that switching equipment receiving end/sending end equipment sends receive data frame；

The switching equipment obtains the reception timeslot number that each Flex E receives data frame, and according to default reception time slot Corresponding relation number with source channels number, each Flex E is received the data carried on each time slot in data frame and is divided into every In data group of the corresponding source channels number of timeslot number of individual time slot as index；Wherein, different source channels correspondences are not homologous logical Road, different source channels are the logical channel for being used to transmit data between the switching equipment and the sending ending equipment；

The switching equipment according to default source channels number and place channel number corresponding relation, will be by different source channels number point It is not mapped in the data group by not chummage channel number respectively as index as the data in the data group of index；Wherein, no The corresponding not chummage passage of chummage channel number, chummage passage is not to be used to transmit data between the switching equipment and receiving device Logical channel；

The switching equipment makees any place channel number according to default place channel number and the corresponding relation of sending time slots number It is the data of the data group of index, at least one Flex E for being respectively mapped to be sent to the receiving device send data frame In the corresponding time slot of sending time slots number corresponding with any place channel number in.

In above-described embodiment, after switching equipment receives each Flex E reception data frames, according to source channels number With the corresponding relation for receiving timeslot number, and source channels number and place channel number corresponding relation, and place channel number with transmission when The corresponding relation of gap number, the data to being carried on each time slot in Flex E reception data frames are divided, and the number that will be divided It is respectively mapped in the corresponding time slot of each sending time slots number that Flex E send data frame according to according to above-mentioned corresponding relation, so that Realize that Flex E reception data frames are changed into at least one Flex E sends data frame, relative to existing switching equipment by Flex E receives data frame analyzing into common ether network packet, carries out the repeating process of common Ethernet message, eliminates the number of switching equipment According to bag treatment, bag forwarding process, the delay of Flex E data exchanges is reduced.

Further, each Flex E is received the data stroke carried on each time slot in data frame in the switching equipment Before in assigning to using the corresponding source channels number of the timeslot number of each time slot as the data group of index, also include：Obtain each Flex E receive the corresponding source clock signal frequency of data frame；The source clock signal frequency is transformed into the switching equipment On clock zone.

In above-mentioned alternative embodiment, the Flex E of reception are received data frame and enter row clock synchronization process by switching equipment, really Protect every Flex E receptions data frame carries out data exchange under same clock signal frequency benchmark, prevents from different transmissions The Flex E of end equipment receive the shake of data frame data transfer caused by the difference of clock zone.

Optionally, the source clock signal frequency is transformed on the clock zone of the switching equipment, including：

The data carried in each time slot in each Flex E reception data frames are write according to the source clock signal frequency In entering the writing station for change over clock domain；According to the clock signal frequency of the switching equipment, said write device is read Middle write data.

Optionally, each Flex E that the switching equipment is received receives data frame and carries unique Flex E marks Know；Each Flex E that the switching equipment sends sends data frame and carries unique Flex E marks.

In above-mentioned alternative embodiment, each Flex E that the switching equipment is received receives data frame and carries unique Flex E are identified, and are easy to switching equipment to distinguish any one the Flex E for receiving and are received data frame；It is sent to receiving device Each Flex E sends data frame and carries Flex E marks, is easy to receiving device to distinguish any one the Flex E for receiving and sends Data frame.

Optionally, the switching equipment using any place channel number as index data group in data according to n batch, Be respectively mapped to one of Flex E receive corresponding with any place channel number sending time slots number in data frame it is corresponding when In gap；Wherein, n is the positive integer more than 1, and the data total bytes of preceding n-1 batches mapping are identical, n-th number of batch mapping According to total bytes less than or equal to the data total bytes that (n-1)th batch maps.In above-mentioned alternative embodiment, each batch is reflected The data penetrated are minimum equivalent to one to exchange particle, and the total bytes that each minimum exchanges particle are according to embodiments of the present invention The performance requirement of Flex E exchange systems is determined.

In above-mentioned alternative embodiment, because the total bytes that each minimum exchanges particle are identical, carried out equivalent to switching equipment The average delay of data exchange is mapping duration that each minimum exchanges particle, relative to switching equipment in the prior art by one Individual ethernet data frame is converted into for multiple payloads packet of different sizes carries out the shake that data exchange is brought, this n The individual minimum average delay for exchanging particle, sends out less than the maximum delay of each packet, therefore switching equipment to receiving device The shake for giving any one Flex E to send data frame is fairly small.

Second aspect, the embodiment of the present invention provides a kind of switching equipment, and the switching equipment includes：

Transmit-Receive Unit, data frame is received at least one Flex E that receiving end/sending end equipment sends；

Processing unit, the reception timeslot number of data frame is received for obtaining each Flex E, and during according to default reception The corresponding relation of gap number and source channels number, each Flex E is received the data carried on each time slot in data frame be divided into In data group of the corresponding source channels number of timeslot number of each time slot as index；Wherein, different source channels correspondences are not homologous Passage, different source channels are the logical channel for being used to transmit data between the switching equipment and the sending ending equipment；And

Processing unit is additionally operable to, according to the corresponding relation of default source channels number and place channel number, will be by different source channels Number respectively as index data group in data be mapped to by not chummage channel number respectively as index data group in；Its In, chummage channel number does not correspond to not chummage passage, and chummage passage is not to be used to pass between the switching equipment and receiving device The logical channel of transmission of data；And

Processing unit is additionally operable to, according to default place channel number and the corresponding relation of sending time slots number, by any Su Tongdao Number as index data group data, at least one Flex E for being respectively mapped to be sent to the receiving device send number According in the corresponding time slot of sending time slots number corresponding with any place channel number in frame.

Further, the processing unit, is additionally operable to for each Flex E to receive carrying on each time slot in data frame Data be divided into using the corresponding source channels number of the timeslot number of each time slot as index data group in before, obtain each Flex E receive the corresponding source clock signal frequency of data frame；And by the source clock signal frequency be transformed into it is described exchange set On standby clock zone.

Optionally, the processing unit, for the data that will be carried in each time slot in each Flex E reception data frames In the writing station for change over clock domain being write according to the source clock signal frequency；And according to the switching equipment when Clock signal frequency, reads the data write in said write device.

Optionally, the switching equipment using any place channel number as index data group in data according to n batch, Be respectively mapped to one of Flex E receive corresponding with any place channel number sending time slots number in data frame it is corresponding when In gap；Wherein, n is the positive integer more than 1, and the data total bytes of preceding n-1 batches mapping are identical, n-th number of batch mapping According to total bytes less than or equal to the data total bytes that (n-1)th batch maps.

In above-mentioned alternative embodiment, the data of each batch mapping are minimum equivalent to one to exchange particle, and each minimum is handed over The performance requirement for changing the total bytes Flex E exchange systems according to embodiments of the present invention of particle is determined.Because each minimum is exchanged The total bytes of particle are identical, and the average delay for carrying out data exchange equivalent to switching equipment is that each minimum exchanges particle Mapping duration, multiple payloads number of different sizes is converted into relative to switching equipment in the prior art by an ethernet data frame For the shake that data exchange is brought being carried out according to bag, this n average delay of minimum exchange particle, less than each packet Maximum delay, therefore switching equipment is fairly small to the shake that receiving device sends any one Flex E transmission data frames.

The third aspect, the embodiment of the present invention provides a kind of switching equipment, and the switching equipment includes：Processor, transceiver And memory；

The memory is used for store instruction, and the processor is used for according to the instruction for performing the memory storage, and Signal is received and signal sends to control the transceiver to carry out, when the instruction of memory storage described in the computing device,

The transceiver is used to perform：At least one Flex E that receiving end/sending end equipment sends receive data frame；

The processor, for performing：The reception timeslot number that each Flex E receives data frame is obtained, and according to default The corresponding relation of timeslot number and source channels number is received, the data carried on each time slot in each Flex E reception data frames are drawn In assigning to using the corresponding source channels number of the timeslot number of each time slot as the data group of index；Wherein, different source channels correspondences Different source channels, different source channels are to lead to for transmitting the logic of data between the switching equipment and the sending ending equipment Road；And

According to the corresponding relation of default source channels number and place channel number, using by different source channels number as index Data in data group are mapped in the data group by not chummage channel number respectively as index；Wherein, not chummage channel number pair Not chummage passage is answered, chummage passage is not the logical channel for being used to transmit data between the switching equipment and receiving device； And

According to default place channel number and the corresponding relation of sending time slots number, using any place channel number as the data for indexing The data of group, be respectively mapped to be sent at least one Flex E of the receiving device send it is in data frame and this In the corresponding time slot of the corresponding sending time slots number of one night channel number.

Further, the processor, is additionally operable to perform：Held on each time slot each Flex E is received in data frame The data of load be divided into using the corresponding source channels number of the timeslot number of each time slot as index data group in before, obtain each Flex E receive the corresponding source clock signal frequency of data frame；And

The source clock signal frequency is transformed on the clock zone of the switching equipment.

Optionally, the processor, for performing：The number that will be carried in each time slot in each Flex E reception data frames According in the writing station write according to the source clock signal frequency for change over clock domain；And

According to the clock signal frequency of the switching equipment, the data write in said write device are read.

Brief description of the drawings

Fig. 1 is a kind of system architecture diagram of transmission network provided in an embodiment of the present invention；

Fig. 2 is a kind of structural representation of OSI Reference Model provided in an embodiment of the present invention；

Fig. 3 is a kind of Flex Ethernet system architecture diagrams provided in an embodiment of the present invention；

Fig. 4 is a kind of schematic flow sheet of Flex E method for interchanging data provided in an embodiment of the present invention；

Fig. 5 is the structural representation of a kind of source channels number provided in an embodiment of the present invention and the cross-over configuration relation of place channel number Figure；

Fig. 6 is a kind of place channel number B2 provided in an embodiment of the present invention as the data and Su Tongdao in the data group of index Mapping relations schematic diagram number between B2 corresponding sending time slots S2, S5, S79；

Fig. 7 is a kind of place channel number B3 provided in an embodiment of the present invention as the data and Su Tongdao in the data group of index Mapping relations schematic diagram number between B3 corresponding sending time slots S4, S78；

Fig. 8 is that the data frame that received to any Flex E provided in an embodiment of the present invention enters the synchronous schematic diagram of row clock；

Fig. 9 is a kind of handling process schematic diagram of mixed service comprising Flex E business provided in an embodiment of the present invention；

Figure 10 is a kind of structural representation of switching equipment provided in an embodiment of the present invention；

Figure 11 is a kind of structural representation of switching equipment provided in an embodiment of the present invention.

Specific embodiment

Below in conjunction with the accompanying drawings, the embodiment of the present invention is described.

Fig. 1 is a kind of transmission network architecture provided in an embodiment of the present invention, including is directly accessed the transmission of transmission network and sets It is standby, such as transmission equipment 1, transmission equipment 2, the transmission equipment 4 of transmission equipment 3 and transmission equipment 5, and the biography of transmission network is accessed indirectly Send equipment, such as transmission equipment 6, transmission equipment 7, transmission equipment 8, transmission equipment 9 and transmission equipment 10.Transmission network therein includes Ethernet and OTN nets.

When transmission network is Ethernet, these switching equipment are according to International Organization for standardization (ISO, International Organization for Standardization) Open System Interconnection (OSI, Open System Interconnect) association (Open System Interconnect Reference Model, Open System Interconnection refers to mould to the OSI Reference Model of view stack Type, abbreviation OSI Reference Model), carry out packet data exchanged.OSI Reference Model is communication protocol, including 7 layers of abstract reference Model, each of which layer performs a certain particular task.The purpose of OSI Reference Model is to make various hardware phase on identical level Mutual communication.This 7 layers by lower and upper include physical layer, data link layer, networking layer, transport layer, session layer, expression layer and application Layer.For physical layer and data link layer, switching equipment is mainly ethernet PHY and ethernet mac (Media Access Control, media access control) packet data exchanged is carried out, abbreviation packet switch, this transmission business is referred to as general data industry Business.

Another transmission network is optical transfer network (OTN, Optical Transport Network, letter based on wavelength-division multiplex Claim OTN nets), OTN data are mapped in multiple Optical Channel Data Unit-k and are transmitted exchange, abbreviation ODUK switching technologies are utilized The data service of optical transfer network transmission is referred to as OTN data services.

In order to lift data exchange capability, based on above-mentioned architecture, the embodiment of the present invention provides a kind of flexible Ethernet System architecture, abbreviation Flex Ethernet system architectures, Flex Ethernet system architectures are also comprising Fig. 1 transmission networks basis system These transmission equipments in system framework.These transmission equipments are gone back in addition to supporting ordinary data traffic or OTN data services Support Flex E business.Flex E business refers to meet the data service of Flex E agreements, and Flex E agreements are in former communication protocols The agreement newly increased in view, the core of Flex E agreements is that a protocol layer is newly increased between physical layer and data link layer, This protocol layer is properly termed as flexible ethernet channel layer, as shown in Fig. 2 increased the OSI Reference Model bag of Flex E agreements 8 layers are included, this 8 layers by lower and upper include physical layer, flexible ethernet channel layer, data link layer, networking layer, transport layer, speech channel Layer, expression layer and application layer.

For a transmission equipment, a functional interface for meeting Flex E agreements need to be within hardware only encapsulated, i.e., Flex E business can be supported.If two transmission equipments all support Flex E business, two transmission equipments can be carried out directly The data exchange of flexible ethernet channel interlayer, such data directly carry out transparent transmission, Jin Erti in flexible ethernet channel interlayer Rise the data exchange capability of transmission equipment.Based on flexible ethernet channel layer carry out data exchange transmission equipment be referred to as flexibly with The too direct-connected transmission equipment of Netcom's channel layer.As shown in figure 3, the direct-connected transmission equipment (biography in such as Fig. 3 of flexible ethernet channel layer Send equipment 1 to transmission equipment 10) constitute Flex Ethernet systems.For example, the transmission equipment 10 in Fig. 3 sets to transmission During standby 1 transmission Flex E business datums, directly the flexible ethernet channel layer Flex E business datums to be sent are mapped to In the flexible ethernet channel layer of transmission equipment 1.

According to the core concept of Flex E agreements, in order to improve data exchange capability, flexible ethernet channel layer can be drawn It is divided into multiple transmission channels, the receivable data volume size of each transmission channel is not limited, can be according to the number of each transmission channel It is that each transmission channel distributes the suitable network bandwidth according to amount size.Therefore, the flexible ethernet channel layer of transmission equipment is suitable In multiple data transmission channels.When two transmission equipments carry out the data penetration transmission of ethernet channel layer, transmission equipment The data of multiple data transmission channels are mapped directly in multiple data transmission channels of another transmission equipment.

In Flex Ethernet system architectures, many transmission paths are constituted between multiple transmission equipments, these transmission set Standby can be the router for accessing the interchanger of transmission network, or being connected with interchanger, and these transmission equipments are used as network element When possessing data exchanging function, switching equipment can be referred to as.

But Flex Ethernet system architectures are ideal system framework, the friendship in the system architecture of current transmission net Exchange device not necessarily all supports Flex E business.Only support original communication protocol without supporting the exchange of Flex E business for those Equipment, when Flex E business datums are received, because that can not recognize Flex E agreements, inside does not encapsulate flexible ether Netcom yet Channel layer, it is then not possible to carry out the data penetration transmission of flexible ethernet channel interlayer, can only carry out packet count according to original communication protocol According to exchange, Ethernet data bag will be converted into after Flex E business datums are parsed, mesh is sent in the way of packet switch Marking device.But, the content that such as background section is illustrated, switching equipment is not supported under the application scenarios of Flex E business, deposited In the big problem of the data transmission delay of Flex E business.Do not support the application scenarios of Flex E business for switching equipment, this Inventive embodiments provide a kind of Flex E method for interchanging data, to reach the transmission of the Flex E business in above-mentioned application scenarios that reduces The purpose of time delay.

It should be noted that the data form of Flex E business is Flex E data frames, and for sending ending equipment, hair The Flex E business datums sent are that Flex E send data frame.For receiving device, the Flex E business numbers for receiving Data frame is received according to for Flex E.Switching equipment in the embodiment of the present invention is the transmission equipment for not supporting Flex E business, but With data below function of exchange：The switching equipment receives the Flex E business datums that the sending ending equipment of upstream sends, i.e., Flex E receive data frame, and Flex E reception data frames are converted into Flex E according to the method for interchanging data of the embodiment of the present invention Data frame is sent, and Flex E transmission data frames are sent to the receiving device in downstream.

For the sending ending equipment of upstream, can be support Flex E business transmission equipment, or can be according to The method for interchanging data of the embodiment of the present invention sends the transmission equipment that Flex E send data frame.Receiving terminal for downstream sets It is standby, can be support Flex E business transmission equipment, or can be according to the method for interchanging data of the embodiment of the present invention Send the transmission equipment that Flex E send data frame.

In order to make switching equipment in the case where nonrecognition Flex E receive data frame, moreover it is possible to which Flex E are received into number Flex E are converted into according to frame send data frame.The embodiment of the present invention builds similar flexible ethernet channel layer in switching equipment Functional module, enables these functional modules to have and Flex E reception data frames is converted into the work(that Flex E send data frame Energy.

Based on the core concept of Flex E agreements, in order to realize that Flex E reception data frames are reflected in the way of passage Penetrate, data frame distribution will be received in multiple passages from Flex E, based on this, data frame is received without parsing Flex E MAC layer information (such as destination-mac address), only need to receive data in data frame each time slot a from channel map by Flex E To another passage, just Flex E reception data frames can be converted into Flex E and send data frame.

The embodiment of the present invention is started with from the receiving port and sending port of switching equipment, is built and is sent by receiving port The logical channel of data is transmitted between end equipment, the logical channel that data are transmitted and between receiving device is built by sending port. For convenience of description, the logical channel for being used to transmit data between switching equipment and sending ending equipment is defined as source channels, will The logical channel for being used to transmit data between switching equipment and receiving device is defined as Su Tongdao.

Specifically, the building mode of source channels is：Multiple time slots that receive of receiving port are divided into multiple source channels, often The corresponding relation for being designated source channels number, timeslot number and source channels number being received by pre-setting of individual source channels, is equivalent to Multiple source channels are constructed in advance.Timeslot number is received as long as obtaining a Flex E and receiving the multiple of data frame, it is possible to will The Flex E receive data frame and are mapped in the corresponding source channels of reception timeslot number.

Secondly, the building mode of Su Tongdao is：Multiple sending time slots of sending port are divided into multiple Su Tongdao, each Su Tongdao's is designated place channel number, by pre-setting the corresponding relation of sending time slots number and place channel number, is equivalent to pre- Multiple Su Tongdao are first constructed.As long as place is logical to be mapped data, it is possible to right with sending time slots number according to place channel number Should be related to, the data in Su Tongdao are mapped in the corresponding sending time slots of place channel number, to be mapped according in sending time slots Data obtain Flex E receive data frame.

In addition, in order to realize being mapped to the data in multiple source channels in multiple Su Tongdao, in addition it is also necessary to pre-set source Cross-over configuration relation between channel number and place channel number, so the data that will be divided into each source channels be mapped to it is corresponding In Su Tongdao.

Therefore, the functional module that the switching equipment of the embodiment of the present invention is set at least has following functions：

Memory module, is previously stored with the corresponding relation for receiving timeslot number and source channels number, source channels number and place channel number Corresponding relation, and place channel number and receive timeslot number between corresponding relation；

Receiver module, receives Flex E and receives data frame；

Processing module, obtains the reception timeslot number that Flex E receive data frame, according to reception timeslot number and source channels number Data in each time slot are divided into multiple data groups by corresponding relation, each data group one source channels number of correspondence；

Processing module, always according to source channels number and the corresponding relation of place channel number, the corresponding data group of source channels number is reflected Penetrate the corresponding data group of channel number all night；

Processing module, always according to the corresponding relation between place channel number and reception timeslot number, by the corresponding number of place channel number It is mapped in the sending time slots of correspondence sending time slots number according to group.

In addition, switching equipment receives multiple Flex E receives data frame, in order that switching equipment distinguishes different Flex E Data frame is received, each Flex E receives data frame and should carry a Flex E mark, and the Flex E for distinguishing different connect Receive data frame.

Additionally, in order to reduce shake during data exchange, channel number corresponding data group in place is being mapped into correspondence transmission When in the sending time slots of timeslot number, mapped according to multiple batches, and the size of the data group of each batch mapping is identical.

Conceived by the foregoing invention of the embodiment of the present invention, if having pre-build source channels number in switching equipment and having connect The corresponding relation of timeslot number is received, the corresponding relation of source channels number and place channel number, and place channel number is right with sending time slots number Should be related to, switching equipment is every in data frame according to being received to Flex E after receiving each Flex E and receiving data frame The data carried on individual time slot are divided, and the data of division are respectively mapped into Flex E transmissions according to above-mentioned corresponding relation In the corresponding time slot of each sending time slots number of data frame, so as to realize for Flex E reception data frames changing at least one Flex E send data frame, and Flex E are received into data frame analyzing into common ether network packet relative to existing switching equipment, enter The repeating process of the common Ethernet message of row, eliminates processing data packets, the bag forwarding process of switching equipment, reduces Flex E numbers According to the delay for exchanging.

Foregoing invention design based on the embodiment of the present invention, as shown in figure 4, a kind of Flex E provided in an embodiment of the present invention Method for interchanging data, its method flow specifically includes following steps：

Step 401, at least one Flex E that switching equipment receiving end/sending end equipment sends receive data frame；

Step 402, switching equipment obtains the reception timeslot number that each Flex E receives data frame, and according to default reception Timeslot number and the corresponding relation of source channels number, the data carried on each time slot in each Flex E reception data frames are divided into In using the corresponding source channels number of reception timeslot number of each reception time slot as the data group of index；Wherein, different source channels number The different source channels of correspondence, different source channels are the logical channel for being used to transmit data between switching equipment and sending ending equipment；

Step 403, switching equipment according to default source channels number and place channel number corresponding relation, will be by different source channels Number respectively as index data group in data be mapped to by not chummage channel number respectively as index data group in；Its In, chummage channel number does not correspond to not chummage passage, and chummage passage is not to be used to transmit number between switching equipment and receiving device According to logical channel；

Step 404, switching equipment according to default place channel number and sending time slots number corresponding relation, by any Su Tongdao Number as index data group data, at least one Flex E for being respectively mapped to be sent to receiving device send data frame In the corresponding time slot of sending time slots number corresponding with any place channel number in.

In above method flow, due to the corresponding pass for source channels number having been pre-build in switching equipment with receive timeslot number The corresponding relation of system, the corresponding relation of source channels number and place channel number, and place channel number and sending time slots number, even if exchange setting It is standby not support Flex E agreements.Switching equipment receive each Flex E receive data frame after, according to source channels number with Receive the corresponding relation of timeslot number, and source channels number and place channel number corresponding relation, and place channel number and sending time slots Number corresponding relation, the data carried on each time slot in data frame are received to Flex E and are divided, and the data that will be divided It is respectively mapped in the corresponding time slot of each sending time slots number that Flex E send data frame according to above-mentioned corresponding relation, so that real Flex E reception data frames are now changed into at least one Flex E and sends data frame, relative to existing switching equipment by Flex E Data frame analyzing is received into common ether network packet, the repeating process of common Ethernet message is carried out, the number of switching equipment is eliminated According to bag treatment, bag forwarding process, the delay of Flex E data exchanges is reduced.

For above method flow, a simply example explanation is lifted, if a Flex E receives data frame equivalent to one Train (train 1), equivalent to a compartment for train, source channels number are equipped with source channels equivalent to coach number in each compartment The luggage carriers of difference numbering, are placed with different chests on each luggage carrier, luggage carrier equivalent to receiving time slot, chest equivalent to Data in time slot, the numbering of luggage carrier is equivalent to reception timeslot number.One Flex E is received data frame conversion by switching equipment Data frame is sent into Flex E, in the chest in a train all exchanged into another train.If another Equivalent to Su Tongdao, equivalent to coach number, each compartment includes luggage carrier to place channel number in one compartment of train (train 2), Different chests can be placed with each luggage carrier, equivalent to sending time slots, chest is equivalent to the number in sending time slots for luggage carrier According to, equivalent to timeslot number is received, the exchange method of the embodiment of the present invention is to provide one being capable of quickly and orderly for the numbering of luggage carrier Method complete two amount trains chest exchange.If quickly carrying chest in order, the coach number and fire of train 1 need to be constructed The compartment 33 of the correspondence train 2 of compartment 11 of the corresponding relation between the coach number of car 2, such as train 1,22 pairs, the compartment of train 1 The compartment 44 of train 2 is answered, so, the chest on the luggage carrier in compartment 11 only need to be all transported to the luggage carrier on compartment 33 On, complete to exchange by the chest on the luggage carrier in compartment 22 is transported on the luggage carrier in compartment 44.And the side of prior art Case is first to find the interior Item Information of each chest, and then chest is grouped, swapping a group by a group.Obviously originally The method that inventive embodiments are provided improves data exchange rate without carrying out packet switch according to the Item Information in chest. Optionally, a source channels number can correspond to multiple reception timeslot numbers, a place channel number correspondence multiple sending time slots number.

In step 402, the corresponding relation of timeslot number and source channels number is received because having been prestored in switching equipment, exchange sets As long as standby multiple reception timeslot numbers that data frame is received according to the Flex E for being received, inquire about above-mentioned reception timeslot number and source channels Number mapping table, it is possible to it is determined that the Flex E that are received receive multiple source channels number of data frame, then just can be by The data that the Flex E are received in data frame each time slot are divided in in the corresponding data group of corresponding source channel number.Each source leads to Taoist monastic name be the data group of index equivalent to a data storage areas, the number in the time slot of timeslot number is received for storing correspondence According to.Accordingly, each corresponding data group of place channel number is equivalent to another data storage areas, for prestoring during transmission Data in the corresponding time slot of gap number.

Optionally, a source channels number are corresponding with least one place channel number, and a place channel number and at least one source are logical Taoist monastic name correspondence.

As shown in figure 5, the cross-over configuration relation of the source channels number prestored in switching equipment and place channel number, according to figure Cross-over configuration relation shown in 5, carries out selecting source to configure to each place channel number, to determine the corresponding place of each source channels number Channel number.

For example, source channels A1 is crossed to place channel number B1, place channel number B2, source channels A2 is connected to place channel number B3, source channels A3, source channels A4 are crossed to place channel number B4, then the source of selecting of place channel number B1 is configured to：Source channels A1； The source of selecting of place channel number B2 is configured to：Source channels A1；The source of selecting of place channel number B3 is configured to：Source channels A2；Place channel number The source of selecting of B4 is configured to：Source channels A3 or source channels A4, wherein, source channels A3 is primary source channels number, Huo Zheyuan Channel number A4 is Back Up Source channel number, and the main and standby relation of source channels A3 and source channels A4 can also be switched.

If sending ending equipment send a Flex E receive data frame Deta bearer receive timeslot number be S10, In the corresponding time slot of S20, S30, S40, S50, and the source channels number prestored in switching equipment are corresponding with reception timeslot number Relation is：Source channels channel A1 with to receive timeslot number S10, S20, S30 corresponding, source channels channel A2 and reception Timeslot number S40, S50 correspondence.

The source channels number prestored in switching equipment are with the corresponding relation of place channel number：Source channels A1 and Su Tongdao Number B2 correspondence, source channels A2 is corresponding with place channel number B3.

The place channel number prestored in switching equipment is with the corresponding relation of sending time slots number：Channel number B2 is corresponding for place Sending time slots number are S2, S5, S79, and channel number B3 corresponding sending time slots number in place are S4, S78.

Then above-mentioned steps 402 include：According to the Flex E receive the reception timeslot number S10 of data frame, S20, S30, S40, S50, searches source channels number and receives the corresponding relation of timeslot number, and the corresponding source channels of timeslot number S10, S20, S30 are determined respectively Number be source channels A1, the corresponding source channels number of timeslot number S40, S50 be source channels A2；Then by S10, S20, S30 correspondence Time slot on carry data be divided into source channels A1 as index data group in, will be held on the corresponding time slot of S40, S50 The data of load are divided into data groups of the source channels A2 as index.

Then step 403 includes：Using source channels A1 as the data in the data group of index, it is mapped to place channel number B2 and makees For in the data group of index；Using source channels A2 as the data in the data group of index, place channel number B3 is mapped to as rope In the data group drawn.

Then step 404 includes：Using place channel number B2 as the data in the data group of index, sending time slots are respectively mapped to In number corresponding time slot of S2, S5, S79；And using place channel number B3 as the data in the data group of index, it is respectively mapped to hair In sending the corresponding time slot of timeslot number S4, S78.Then according to the data carried in sending time slots S2, S5, S79, S4, S78, protect The frame format for holding Flex E reception data frames is constant, and a Flex E is received into data frame changes into a Flex E transmission data Frame.

In alternative embodiment, for switching equipment, the Flex E for receiving carry Flex E in receiving data frame Mark, Flex E marks can be carried in the frame head that Flex E receive data frame, so that switching equipment distinguishes different Flex E receives data frame.

In step 404, data frame is sent in order to distinguish different Flex E, is sent to every Flex of receiving device E sends data frame and equally carries Flex E marks, so that receiving device recognizes that different Flex E receive data frame.For example, The Flex E that the 1st Flex E that switching equipment is received receives data frame are designated client1, and the 1st Flex E is received Data frame is also client1 through the Flex E marks that the 1st Flex E that step 401 to step 404 is converted into sends data frame. The Flex E that the 2nd Flex E that switching equipment is received receives data frame are designated client2, and the 2nd Flex E is received Data frame is also client2 through the Flex E marks that the 2nd Flex E that step 401 to step 404 is converted into sends data frame. Receiving device can receive the Flex E carried in data frame according to each Flex E and identify to distinguish different Flex E Data flow.

The process of above-mentioned steps 404, substantially be exactly switching equipment will receive each Flex E reception data frame according to It is secondary to be exchanged for the process that corresponding Flex E receive data frame.

Optionally, in step 404, switching equipment according to n batch using place channel number B2 as index data group in Data, are respectively mapped in the corresponding time slot of sending time slots S2, S5, S79, and make place channel number B3 according to n batch It is the data in the data group of index, is respectively mapped in the corresponding time slot of sending time slots S4, S78.Wherein, n is more than 1 Positive integer, the total bytes of the data that this n batch maps respectively can be with identical, it is also possible to different.

Optionally, the data total bytes of preceding n-1 batches mapping are identical, and the data total bytes of n-th batch mapping are small In or equal to (n-1)th data total bytes of batch mapping.Like this, the data that each batch maps are equivalent to one most Small exchange particle, the performance of each minimum total bytes for exchanging particle Flex E exchange systems according to embodiments of the present invention will Ask decision.Because the total bytes that each minimum exchanges particle are identical, equivalent to the average delay that switching equipment carries out data exchange The mapping duration of particle is exchanged for each minimum, an ethernet data frame is converted relative to switching equipment in the prior art For carrying out the shake that data exchange is brought by multiple payloads packet of different sizes, this n minimum to exchange the flat of particle Equal time delay, sends any one Flex E and sends less than the maximum delay of each packet, therefore switching equipment to receiving device The shake of data frame is fairly small.

For example, switching equipment maps place channel number B2 as the data in the data group of index according to 3 batches respectively In data frame being received to Flex E in the corresponding time slot of sending time slots S2, S5, S79 corresponding with place channel number B2, tool Body includes：

Step 1), the 1st batch mapping, switching equipment takes out one using place channel number B2 as the data in the data group of index Part mapping sends in the corresponding time slot of data frame S2, S5, S79 in Flex E；

Step 2), the 2nd batch mapping, switching equipment takes place channel number B2 as the remaining data in the data group of index Go out a part to be mapped in the corresponding time slot of Flex E transmission data frames S2, S5, S79；

Step 3), the 3rd batch mapping, switching equipment is complete as the remaining data in the data group of index using place channel number B2 Portion is mapped in the corresponding time slot of Flex E transmission data frames S2, S5, S79.

For above-mentioned example, optionally, switching equipment is every time from data of the place channel number B2 as the data group of index The data of fixed word joint number are taken out, Flex E is mapped in respectively and is sent the corresponding time slot of data frame sending time slots S2, S5, S79 In.

For the data mapping process of the clearer each batch of explanation, if place channel number B2 is used as the data group of index In data have a 15G bandwidth, channel number B2 corresponding sending time slots number in place are S2, S5, S79, and each timeslot number is corresponding The minimum 5G of payload bandwidth of time slot, per a batch of data, 4 slot (time slot) of mapping needs could map completion.It is then above-mentioned The mapping process of 3 batches is as shown in Figure 6：

Above-mentioned steps 1) in, switching equipment first takes out fixed word using place channel number B2 as the data in the data group of index A part of data A0, A1 of joint number, A2, A3, carry out the data mapping of the 1st batch, and A0, A1, A2, the A3 that will be taken out reflect respectively Penetrate in the 1st S2, S5, S79 and the 2nd corresponding time slot of S2 of slot of slot is belonged to；

Above-mentioned steps 2) in, place channel number B2 is taken out solid by switching equipment as the remaining data in the data group of index again Determine a part of data B0, B1, B2, B3 of byte number, carry out the data mapping of the 2nd batch, B0, B1, B2, the B3 that will be taken out point It is not mapped in belonging to the 2nd S5, S79 and the 3rd corresponding time slot of S2, S5 of slot of slot；

Above-mentioned steps 3) in, switching equipment using place channel number B2 as index data group in remaining data C0, C1, C2, C3 (wherein, the total amount of byte of C0, C1, C2, C3 is less than or equal to fixed word joint number), carry out the data mapping of the 3rd batch, C0, C1, C2, the C3 for taking out will respectively be mapped in S2, S5, the S79 couple for belonging to the 3rd S79 and the 4th of slot slot In the time slot answered.

Above-mentioned example, illustrates place channel number B2 and is mapped in the way of dividing equally as the data in the data group of index In place channel number B2 corresponding 3 time slots, that is, data A0, A1 taken out, the total bytes of A2, A3 and the B0, B1 for taking out, The total bytes of B2, B3 are equal, and because the last data taken out may be smaller, the total bytes of B0, B1, B2, B3 of taking-up are big In or equal to remaining C0, C1, C2, C3 total bytes.

Accordingly, if switching equipment using place channel number B3 as index data group in data according to 2 batches, point It is not mapped in the corresponding time slot of Flex E data is activation frame sending time slots S4, S78, then step 204 includes：

Step 5), the 1st batch mapping, switching equipment takes out one using place channel number B3 as the data in the data group of index Part, is mapped in Flex E and sends in data frame in the corresponding time slot of sending time slots S4, S78；

Step 6), the 2nd batch mapping, switching equipment is complete as the remaining data in the data group of index using place channel number B3 Portion is mapped in Flex E and sends in data frame in the corresponding time slot of sending time slots S4, S78.

Optionally, switching equipment takes out fixed word joint number from data of the place channel number B3 as the data group of index every time Data, be mapped in respectively in the corresponding time slot of sending time slots S4, S78.Like this, the data of each batch mapping are suitable In a minimum exchange particle, each minimum total bytes for exchanging particle Flex E exchange systems according to embodiments of the present invention Performance requirement determine.

For the data mapping process of the clearer each batch of explanation, it is assumed that place channel number B3 is used as the data group for indexing In data have a 10G bandwidth, the minimum 5G of payload bandwidth of each time slot, the corresponding sending time slots number of place channel number B3 be S4, S78, per a batch of data, 4 slot (time slot) of mapping needs could map completion.Then above-mentioned mapping is carried out according to 2 batches Process it is as shown in Figure 7：

Above-mentioned steps 5) in, place channel number B3 is taken out fixed byte by switching equipment Several a part of data U0, U1, U2, U3, carries out the data mapping of the 1st batch, and U0, U1, U2, the U3 that will be taken out reflect respectively Penetrate in S4, the S78 and the 2nd S4, S78 of slot for belonging to the 1st slot distinguish corresponding time slot；

Above-mentioned steps 6) in, switching equipment using place channel number B3 as index data group in remaining data V0, V1, V2, V3 (total amount of byte of V0, V1, V2, V3 is less than or equal to fixed word joint number), V0, V1, V2, V3 of taking-up are mapped respectively In S4, the S78 and the 4th S4, S78 of slot for belonging to the 3rd slot distinguish corresponding time slot.

Wherein, above-mentioned steps 1) to step 4) with above-mentioned steps 5) to step 6) without absolute sequencing, or even on State step 1) to step 4) with above-mentioned steps 5) to step 6) can be while carrying out.

According to above-mentioned steps 402 to step 404, each Flex E can be received switching equipment each time slot of data frame The data of middle carrying are divided and mapped, and then the Flex E that switching equipment is received from sending ending equipment receive data frame and turn Change the Flex E sent to receiving device into and send data frame.

In optional embodiment, before step 402, also include：Obtain each Flex E and receive the corresponding source of data frame Clock signal frequency；Source clock signal frequency is transformed on the clock zone of switching equipment.

Optionally, source clock signal frequency is transformed on the clock zone of switching equipment, including：Each Flex E is received The data carried in each time slot in data frame write in the caching for change over clock domain according to source clock signal frequency；And press According to the clock signal frequency of switching equipment, the data write in caching are read.

As shown in figure 8, each the Flex E for receiving receives data frame, switching equipment reads the number write in caching According to when, according to source clock and switching equipment system clock, (inserted by Idle delete (deletion idle frame) and Idle insert Enter idle frame) mode waterline regulation is carried out to caching, it is ensured that each Flex E of reception receive the clock frequency of data frame with The system clock synchronization of switching equipment.

The Flex E of reception are received data frame and enter row clock synchronization process by switching equipment, it is ensured that every Flex E receive number Data exchange is carried out under same clock signal frequency benchmark according to frame, prevents the Flex E from different sending ending equipments from receiving The shake of data frame data transfer caused by the difference of clock zone.

Flex E method for interchanging data provided in an embodiment of the present invention, in addition to it can process FlexE business, can also locate Reason OTN business, ordinary data traffic respectively with the mixed service of FlexE service constitutions, switching equipment can from physical structure Isolate the FlexE business and ordinary data traffic for belonging to Ethernet system architecture, and ensure FlexE business relative to The absolute priority of ordinary data traffic, as shown in Figure 9：

Switching equipment is received respectively from different reception physical interfaces (FIC in Fig. 9)：Flex E business and general data The mixed service of the mixed service data (being simply illustrated as Flex E/ data in Fig. 9) of business, Flex E business and OTN business Data (are simply illustrated as Flex E/OTN) in Fig. 9.Then enter according to Flex E method for interchanging data provided in an embodiment of the present invention The process of the data exchange of row mixed service is specially：

First, switching equipment carries out business separation to mixed service, can especially isolate FlexE business and common number According to business.

Secondly, the data frame of the different business that switching equipment will be isolated (such as the Flex E in Fig. 7 receive data frame, Common ether receives data frame, and OTN receives data frame) treatment is swapped, then using the friendship of different reception data frames Change mode carries out data exchange with minimum exchange particle.

For example, switching equipment receives data frame to Flex E according to Flex E data exchange sides provided in an embodiment of the present invention Method carries out data exchange, and Flex E reception data frames are swapped in the way of channelizing；Data frame is received to common ether Data processing is carried out, data exchange is carried out as particle is exchanged using packet；Data frame is received to OTN to process, Then data exchange is carried out as particle is exchanged using ODUk.

Finally, different types of exchange particle is reverted to mixed service data and is exported by switching equipment again.

For example, by mapping method, the data that Flex E are received in data frame are mapped in Flex E transmission data frames Data, using as ordinary data traffic it is minimum exchange particle difference demapping after, during common ether received into data frame Data are mapped to the data during common ether sends data frame, Flex E then are sent into data frame and common ether sends data The blended data that frame is constituted, as the mixed service data is activation of Flex E business and ordinary data traffic to corresponding transmission thing Reason interface；Accordingly, by Flex E receive data frame in data be mapped to Flex E send data frame in data, using as After the minimum exchange particle difference demapping of OTN business, the data that OTN is received in data frame are mapped to OTN and send data frame In data, Flex E are then sent into data frame and OTN and send the blended data that data frame is constituted, as Flex E business with The mixed service data is activation of OTN business sends physical interface (FIC) to corresponding.

For switching equipment, receive after any Flex E receptions data frame, data frame is received according to Flex E Source channels number, source channels number and receive the corresponding relation of timeslot number, and source channels number and place channel number corresponding relation, with And the corresponding relation of place channel number and sending time slots number, to the data carried on each time slot in any Flex E reception data frames When being divided, and the data of division being respectively mapped into each transmission of Flex E transmission data frames according to above-mentioned corresponding relation In the corresponding time slot of gap number, so that realize changing into Flex E reception data frames that Flex E are sent into data frame, relative to existing There is switching equipment that Flex E are received into data frame analyzing into common ether network packet, carry out the repeating process of common Ethernet message, Processing data packets, bag forwarding process are eliminated, the delay of Flex E data exchanges is reduced.

Alternatively some further features in the embodiment of the present invention are identical with above method embodiment, reference can be made to above-mentioned Discussion in embodiment of the method, will not be repeated here.

Based on same idea, Figure 10 illustrates a kind of structural representation of switching equipment provided in an embodiment of the present invention Figure, the switching equipment is used to perform above method embodiment, and switching equipment 800 includes processor 801 and transceiver 805.

Alternatively, also including memory 802 and communication interface 803, wherein, processor 801, memory 802, communication interface 803 and transceiver 805 be connected with each other by bus 804；Memory 802 can be integrated in processor 801, it is also possible to independently of Processor 801.

Bus 804 can be Peripheral Component Interconnect standard (peripheral component interconnect, abbreviation PCI) bus or EISA (extended industry standard architecture, abbreviation EISA) Bus etc..Bus can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only with a thick line in Figure 10 Represent, it is not intended that only one bus or a type of bus.

Memory 802 can include volatile memory (volatile memory), such as random access memory (random-access memory, abbreviation RAM)；Memory 802 can also include nonvolatile memory (non-volatile Memory), such as flash memory (flash memory), hard disk (hard disk drive, abbreviation HDD) or solid state hard disc (solid-state drive, abbreviation SSD)；Memory 802 can also include the combination of the memory of mentioned kind.

Communication interface 803 can be wire communication access port, wireless communication interface or its combination, wherein, wire communication connects Mouth for example can be Ethernet interface.Ethernet interface can be optical interface, electrical interface or its combination.Wireless communication interface can be with It is WLAN interface.

Processor 801 can be central processing unit (central processing unit, abbreviation CPU), network processing unit The combination of (network processor, abbreviation NP) or CPU and NP.

Processor 801 can further include hardware chip.Above-mentioned hardware chip can be application specific integrated circuit (application-specific integrated circuit, abbreviation ASIC), PLD (programmable logic device, abbreviation PLD) or its combination.Above-mentioned PLD can be CPLD (complex programmable logic device, abbreviation CPLD), field programmable gate array (field- Programmable gate array, abbreviation FPGA), GAL (generic array logic, abbreviation GAL) or Its any combination.

Memory 802 is used for store instruction, and processor 801 is used for the instruction stored according to execution memory 802, and controls Transceiver 805 carries out signal and receives and signal transmission, when processor 801 performs the instruction of the storage of memory 802：

Transceiver 805, data frame is received at least one Flex E that receiving end/sending end equipment sends；

Processor 801, the reception timeslot number of data frame is received for obtaining each Flex E, and during according to default reception The corresponding relation of gap number and source channels number, each Flex E is received the data carried on each time slot in data frame be divided into In data group of the corresponding source channels number of timeslot number of each time slot as index；Wherein, different source channels correspondences are not homologous Passage, different source channels are the logical channel for being used to transmit data between switching equipment and sending ending equipment；And

According to the corresponding relation of default source channels number and place channel number, using by different source channels number as index Data in data group are mapped to by not chummage channel number respectively as the data group for indexing；Wherein, chummage channel number is not corresponding Not chummage passage, chummage passage is not to be used to transmit the logical channel of data between switching equipment and receiving device；And

According to default place channel number and the corresponding relation of sending time slots number, using any place channel number as the data for indexing The data of group, are respectively mapped to be sent at least one Flex E of receiving device and send in data frame and any place In the corresponding time slot of the corresponding sending time slots number of channel number.

Optionally, processor 801, are additionally operable to that each Flex E is being received the data of carrying on each time slot in data frame Before in being divided into using the corresponding source channels number of the timeslot number of each time slot as the data group of index, obtain each Flex E and connect Receive the corresponding source clock signal frequency of data frame；And source clock signal frequency is transformed on the clock zone of switching equipment.

Optionally, processor 801, for performing：The number that will be carried in each time slot in each Flex E reception data frames According in the writing station write according to source clock signal frequency for change over clock domain；And according to the clock signal of switching equipment Frequency, the data write in read and write-in apparatus.

Optionally, switching equipment using any place channel number as the data in the data group of index according to n batch, distinguish It is mapped to one of Flex E and receives the corresponding time slot of corresponding with any place channel number sending time slots number in data frame In；

Wherein, the data total bytes of preceding n-1 batches mapping are identical, and the data total bytes of n-th batch mapping are less than Or the data total bytes mapped equal to (n-1)th batch.

Based on same idea, Figure 11 illustrates a kind of structural representation of switching equipment provided in an embodiment of the present invention Figure, the switching equipment is used to perform above method embodiment.

A kind of switching equipment as shown in figure 11, including：

Transmit-Receive Unit 901, data frame is received at least one Flex E that receiving end/sending end equipment sends；

Processing unit 902, the reception timeslot number of data frame is received for obtaining each Flex E, and according to default reception The corresponding relation of timeslot number and source channels number, each Flex E that Transmit-Receive Unit 901 is received receives each time slot in data frame During the data of upper carrying are divided into using the corresponding source channels number of the timeslot number of each time slot as the data group of index；Wherein, no The corresponding different source channels of homologous channel number, different source channels are to be used to transmit patrolling for data between switching equipment and sending ending equipment Collect passage；And

According to the corresponding relation of default source channels number and place channel number, using by different source channels number as index Data in data group are mapped in the data group by not chummage channel number respectively as index；Wherein, not chummage channel number pair Not chummage passage is answered, chummage passage is not the logical channel for being used to transmit data between switching equipment and receiving device；And

Optionally, processing unit 902, are additionally operable to that each Flex E is being received the number of carrying on each time slot in data frame Before in being divided into using the corresponding source channels number of the timeslot number of each time slot as the data group of index, each Flex E is obtained Receive the corresponding source clock signal frequency of data frame；And source clock signal frequency is transformed on the clock zone of switching equipment.

In above-mentioned alternative embodiment, the Flex E of reception are received into data frame and enters row clock synchronization process, it is ensured that be each Flex E receive data frame and carry out data exchange under same clock signal frequency benchmark, prevent from different sending ending equipments Flex E receive data frame data transfer caused by the difference of clock zone shake.

Optionally, processing unit 902, for the data carried in each time slot in each Flex E reception data frames to be pressed In the writing station for change over clock domain being write according to source clock signal frequency；And according to switching equipment clock signal frequently Rate, the data write in read and write-in apparatus.

Optionally, switching equipment using any place channel number as the data in the data group of index according to n batch, distinguish It is mapped to one of Flex E and receives the corresponding time slot of corresponding with any place channel number sending time slots number in data frame In；Wherein, the data total bytes of preceding n-1 batches mapping are identical, and the data total bytes of n-th batch mapping are less than or equal to (n-1)th data total bytes of batch mapping.

It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program producing Product.Therefore, the embodiment of the present invention can be using complete hardware embodiment, complete software embodiment or combination software and hardware aspect Embodiment form.And, the embodiment of the present invention can be used and wherein include computer available programs generation at one or more The meter implemented in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of code The form of calculation machine program product.

The embodiment of the present invention is with reference to method according to embodiments of the present invention, equipment (system) and computer program product Flow chart and/or block diagram describe.It should be understood that during flow chart and/or block diagram can be realized by computer program instructions The combination of flow and/or square frame in each flow and/or square frame and flow chart and/or block diagram.These calculating can be provided Treatment of the machine programmed instruction to all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices Device is producing a machine so that produced by the instruction of computer or the computing device of other programmable data processing devices For the function realizing being specified in one flow of flow chart or multiple one square frame of flow and/or block diagram or multiple square frames Device.

These computer program instructions may be alternatively stored in can guide computer or other programmable data processing devices with spy In determining the computer-readable memory that mode works so that instruction of the storage in the computer-readable memory is produced and include finger Make the manufacture of device, the command device realize in one flow of flow chart or multiple one square frame of flow and/or block diagram or The function of being specified in multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented treatment, so as in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.

Obviously, those skilled in the art can carry out various changes and modification without deviating from this Shen to the embodiment of the present invention Spirit and scope please.So, if these modifications of the embodiment of the present invention and modification belong to the application claim and its wait Within the scope of technology, then the application is also intended to comprising these changes and modification.

Claims

1. a kind of Flex E method for interchanging data, it is characterised in that methods described includes：

The switching equipment obtain each Flex E receive data frame reception timeslot number, and according to it is default reception timeslot number with The corresponding relation of source channels number, when the data carried on each time slot in each Flex E reception data frames are divided into each In data group of the corresponding source channels number of timeslot number of gap as index；Wherein, the different source channels of different source channels correspondences, no It is the logical channel for being used to transmit data between the switching equipment and the sending ending equipment with source channels；

The switching equipment will respectively be made according to default source channels number and the corresponding relation of place channel number by different source channels number For the data in the data group of index are mapped in the data group by not chummage channel number respectively as index；Wherein, not chummage The corresponding not chummage passage of channel number, chummage passage is not to be used to transmit patrolling for data between the switching equipment and receiving device Collect passage；

The switching equipment according to default place channel number and sending time slots number corresponding relation, using any place channel number as rope The data of the data group drawn, are respectively mapped to be sent at least one Flex E of receiving device transmission data frames The corresponding time slot of sending time slots number corresponding with any place channel number in.

2. the method for claim 1, it is characterised in that in each Flex E is received data frame by the switching equipment During the data carried on each time slot are divided into using the corresponding source channels number of the timeslot number of each time slot as the data group of index Before, also include：

Obtain each Flex E and receive the corresponding source clock signal frequency of data frame；

3. method as claimed in claim 2, it is characterised in that the source clock signal frequency is transformed into the switching equipment Clock zone on, including：

The data carried in each time slot in each Flex E reception data frames are write according to the source clock signal frequency and is used In the writing station in change over clock domain；

4. the method for claim 1, it is characterised in that each Flex E that the switching equipment is received receives number Unique Flex E are carried according to frame to identify；

Each Flex E that the switching equipment sends sends data frame and carries unique Flex E marks.

5. the method for claim 1, it is characterised in that

The switching equipment using any place channel number as index data group in data according to n batch, be respectively mapped to One of Flex E are received in the corresponding time slot of corresponding with any place channel number sending time slots number in data frame；

Wherein, n is the positive integer more than 1, and the data total bytes of preceding n-1 batches mapping are identical, n-th data of batch mapping Total bytes are less than or equal to (n-1)th data total bytes of batch mapping.

6. a kind of switching equipment, it is characterised in that the switching equipment includes：

Processing unit, the reception timeslot number of data frame is received for obtaining each Flex E, and according to default reception timeslot number With the corresponding relation of source channels number, the data carried on each time slot in each Flex E reception data frames are divided into each In data group of the corresponding source channels number of timeslot number of time slot as index；Wherein, the different source channels of different source channels correspondences, Different source channels are the logical channel for being used to transmit data between the switching equipment and the sending ending equipment；And

Processing unit is additionally operable to, according to the corresponding relation of default source channels number and place channel number, will be by different source channels number point It is not mapped in the data group by not chummage channel number respectively as index as the data in the data group of index；Wherein, no The corresponding not chummage passage of chummage channel number, chummage passage is not to be used to transmit data between the switching equipment and receiving device Logical channel；And

Processing unit is additionally operable to, and according to default place channel number and the corresponding relation of sending time slots number, any place channel number is made It is the data of the data group of index, at least one Flex E for being respectively mapped to be sent to the receiving device send data frame In the corresponding time slot of sending time slots number corresponding with any place channel number in.

7. switching equipment as claimed in claim 6, it is characterised in that

The processing unit, the data for being additionally operable to be carried on each time slot in each Flex E is received into data frame be divided into The corresponding source channels number of timeslot number of each time slot as index data group in before, obtain each Flex E receive data frame Corresponding source clock signal frequency；And

8. switching equipment as claimed in claim 7, it is characterised in that

The processing unit, for will each Flex E receive the data carried in each time slot in data frame according to the source when Clock signal frequency is write in the writing station for change over clock domain；And

9. switching equipment as claimed in claim 6, it is characterised in that

Each Flex E that the switching equipment is received receives data frame and carries unique Flex E marks；

10. switching equipment as claimed in claim 6, it is characterised in that the switching equipment is using any place channel number as rope Data in the data group drawn are respectively mapped in one of Flex E receptions data frame and any place according to n batch In the corresponding time slot of the corresponding sending time slots number of channel number；

11. a kind of switching equipment, it is characterised in that the switching equipment includes：Processor, transceiver and memory；

The memory is used for store instruction, and the processor is used for the instruction according to the execution memory storage, and controls The transceiver carries out signal and receives and signal transmission, when the instruction of memory storage described in the computing device,

The processor, for performing：The reception timeslot number that each Flex E receives data frame is obtained, and according to default reception Timeslot number and the corresponding relation of source channels number, the data carried on each time slot in each Flex E reception data frames are divided into In using the corresponding source channels number of the timeslot number of each time slot as the data group of index；Wherein, different source channels number correspondences are different Source channels, different source channels are the logical channel for being used to transmit data between the switching equipment and the sending ending equipment；With And

According to the corresponding relation of default source channels number and place channel number, using by different source channels number as index data Data in group are mapped in the data group by not chummage channel number respectively as index；Wherein, chummage channel number is not corresponding not Chummage passage, chummage passage is not the logical channel for being used to transmit data between the switching equipment and receiving device；And

According to default place channel number and the corresponding relation of sending time slots number, using any place channel number as the data group of index Data, are respectively mapped to be sent at least one Flex E of the receiving device and send in data frame and any place In the corresponding time slot of the corresponding sending time slots number of channel number.

12. switching equipment as claimed in claim 11, it is characterised in that

The processor, is additionally operable to perform：Divided in the data that each Flex E is received carrying on each time slot in data frame Before in using the corresponding source channels number of the timeslot number of each time slot as the data group of index, obtain each Flex E and receive number According to the corresponding source clock signal frequency of frame；And

13. switching equipment as claimed in claim 12, it is characterised in that

The processor, for performing：The data that will be carried in each time slot in each Flex E reception data frames are according to described Source clock signal frequency is write in the writing station for change over clock domain；And

14. switching equipment as claimed in claim 11, it is characterised in that

15. switching equipment as claimed in claim 11, it is characterised in that the switching equipment is using any place channel number as rope Data in the data group drawn are respectively mapped in one of Flex E receptions data frame and any place according to n batch In the corresponding time slot of the corresponding sending time slots number of channel number；