CN103795605B - Method and system for converting OTN signals into Ethernet payloads - Google Patents
Method and system for converting OTN signals into Ethernet payloads Download PDFInfo
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- CN103795605B CN103795605B CN201410017258.2A CN201410017258A CN103795605B CN 103795605 B CN103795605 B CN 103795605B CN 201410017258 A CN201410017258 A CN 201410017258A CN 103795605 B CN103795605 B CN 103795605B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
- H04L12/462—LAN interconnection over a bridge based backbone
- H04L12/4625—Single bridge functionality, e.g. connection of two networks over a single bridge
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/407—Bus networks with decentralised control
- H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection (CSMA-CD)
Abstract
The invention discloses a method and system for converting OTN signals into Ethernet payloads, and relates to the field of communication. The method comprises the following steps that the received OTN signals are decomposed into ODU0/1/2/3/4/flex signals, the ODU0/1/2/3/4/flex signals are packed into interlaken signals through an SAR module, each ODU0/1/2/3/4/flex corresponds to one channel of interlaken, the interlaken signals of the channels are adopted as the payloads to be packed into Ethernet frames, and corresponding Ethernet labels mark the Interlaken payloads of the channels; the Ethernet frames are transmitted to an opposite terminal through an Ethernet switched network, the opposite terminal restores the interlaken signals of the corresponding channels with the Ethernet labels, and the corresponding ODU0/1/2/3/4/flex signals are restored through the SAR module and form the OTN signals through multiple connection to be sent. The OTN signals can be converted into the Ethernet payloads, and the transmission capacity of an OTN service interface is provided for a traditional distributed switching framework data device based on an Ethernet packet.
Description
Technical field
The present invention relates to the communications field, be specifically related to one and OTN signal is converted to ether
The method and system of net payload.
Background technology
Current data delivery platform is desirable that have POTN (Packet enhanced Optical
Transport Network, is grouped enhancement mode optical transport network) multi-service required by standard holds
The ability carried and transmit, the business interface of carrying mainly has data traffic interfaces and TDM (Time
Division Multiplex, time division multiplex) the big class of business interface two.TDM business interface again may be used
It is divided into SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy), PDH
(Plesiochronous Digital Hierarchy, PDH) and OTN (Optical
Transport Network, optical transfer network) etc..Owing to traditional data delivery platform has one
Dividing is distributed switching architecture based on Ethernet bag (not being cell), the natural support of this framework
Ethernet data interface, for PDH interfaces such as SDH interface and E1, is respectively adopted CEP
(SDH Circuit Emulation over Packet, be grouped net loaded SDH circuit simulation)
Mode or the technical approach of pseudo wire emulation, realize distributed switching architecture based on packet
The data equipment transmission to TDM business, but big band width service interface such for OTN,
Transmitted by distributed switching architecture data equipment based on Ethernet bag, the most ununified
Technical standard comes specification and guide.
Summary of the invention
The invention aims to overcome the deficiency of above-mentioned background technology, it is provided that one will
OTN signal is converted to the method and system of Ethernet payload, it is possible to be converted into by OTN signal
Ethernet payload, regards switching plane based on Ethernet exchanging framework as unified exchange and puts down
Platform, provides OTN industry for traditional distributed switching architecture data equipment based on Ethernet bag
The transfer capability of business interface, makes traditional distributed switching architecture data based on Ethernet bag
Equipment has multiple service supporting and the ability of transmission meeting the requirement of POTN equipment standard, prolongs
The life cycle of this kind equipment long.
The present invention provides a kind of method that OTN signal is converted to Ethernet payload, including
Following steps:
A, it is ODU0/1/2/3/4/flex these 6 by each OTN signal decomposition received
The combination in any of signal, the most corresponding interlaken of each ODU0/1/2/3/4/flex signal
A passage；Then ODU0/1/2/3/4/flex signal is given section and polymerization SAR
Module；SAR module is used for: at transmitting terminal by continuous print ODU0/1/2/3/4/flex signal root
The section of regular length it is cut into, simultaneously plus corresponding channel number and pipe according to the length of system requirements
Reason bag, is packaged into interlaken signal；It is reduced into from interlaken signal at receiving terminal and cuts
Sheet, and generation continuous print corresponding ODU0/1/2/3/4/flex signal that section is regrouped；
B, the interlaken signal of each passage is packaged into ethernet frame as payload,
Simultaneously as needed for each passage interlaken payload flags correspondence ethernet frame with
Too network mark is known；
C, by exchange network based on ethernet frame, it is right to be given by packaged ethernet frame
End, opposite end is identified by the Ethernet in ethernet frame, recovers from the payload of this ethernet frame
Go out the interlaken signal of this ethernet frame respective channel, the interlaken signal that will recover
Give SAR module；
The fixed packet long data section loaded in respective channel payload is pressed former by D, SAR module
Having order to reassemble into corresponding ODU0/1/2/3/4/flex signal, multiple connection module will
ODU0/1/2/3/4/flex signal is multiplexed to complete OTN signal by corresponding Slot format and send
Go out.
On the basis of technique scheme, the frame of described interlaken signal includes burst control
Word processed, serial number, time stamp and ODU0/1/2/3/4/flex section, wherein, burst control word
A length of 64 bits, a length of 16 bits of serial number, a length of 32 bits of time stamp,
The length of ODU0/1/2/3/4/flex section is fixing, needs to determine, wherein according to system
The 8 corresponding ODU0/1/2/3/4/flex of bit channels number in burst control word in OTN time
Gap number.
On the basis of technique scheme, described Ethernet is designated VLAN
VLAN or multiprotocol label switching MPLS.
On the basis of technique scheme, the band that described interlaken signal assemble becomes
The ethernet frame of VLAN mark includes source address, destination address, tag protocol identifier
TPID/VLAN, burst control word, serial number, time stamp, ODU0/1/2/3/4/flex section and
Frame Check Sequence FCS, wherein, with 16 systems, TPID represents that value is 0x8100, VLAN
Channel number one_to_one corresponding in value and burst control word byte, a length of the 64 of burst control word
Bit, a length of 16 bits of serial number, a length of 32 bits of time stamp,
The length of ODU0/1/2/3/4/flex section is fixing, needs to determine, wherein according to system
The 8 corresponding ODU0/1/2/3/4/flex of bit channels number in burst control word in OTN time
Gap number；When ethernet frame after encapsulation is by architecture for exchanging data equipment based on Ethernet, single
Broadcast, the forwarding behavior of multicast and broadcast is determined by destination address；Packaged ethernet frame exists
Realize arbitrarily exchange in distributed switching architecture data equipment based on Ethernet bag, exchange to
Any single-deck/arbitrary port in this equipment.
On the basis of technique scheme, the band that described interlaken signal assemble becomes
The ethernet frame of MPLS mark includes source address, destination address, control word, ethernet frame class
Type Ethertype/ label switching path LSP/pseudo-wire PW, burst control word, serial number, time
Stamp, ODU0/1/2/3/4/flex section and FCS, wherein, the Ethertype value of MPLS frame is used
16 systems are expressed as the channel number in the value of 0x8847, LSP/PW and burst control word byte
One_to_one corresponding, a length of 64 bits of burst control word, a length of 16 bits of serial number,
A length of 32 bits of time stamp, the length of ODU0/1/2/3/4/flex section is fixing, root
Need to determine according to system, wherein 8 bit channels correspondences in burst control word
ODU0/1/2/3/4/flex timeslot number in OTN；Ethernet frame after encapsulation by based on
During the architecture for exchanging data equipment of Ethernet, the forwarding behavior of clean culture, multicast and broadcast is by mesh
Address determine；Packaged ethernet frame is at distributed switching architecture number based on Ethernet bag
According to realizing arbitrarily exchange in equipment, exchange to any single-deck/arbitrary port in this equipment.
The present invention also provide for for realize said method that OTN signal is converted to Ethernet is clean
The system of lotus, including decomposing module, SAR module, ethernet frame package module, Ethernet
Frame sending module, interlaken signal recover module and multiple connection module, wherein:
Described decomposing module, is used for: by each OTN signal decomposition received be
The combination in any of these 6 signals of ODU0/1/2/3/4/flex, each ODU0/1/2/3/4/flex
One passage of the most corresponding interlaken of signal；Then by ODU0/1/2/3/4/flex signal
Give SAR module；
Described SAR module, is used for: believed by continuous print ODU0/1/2/3/4/flex at transmitting terminal
Number it is cut into the section of regular length according to the length of system requirements, simultaneously plus corresponding channel number
With management bag, it is packaged into interlaken signal；Reduce from interlaken signal at receiving terminal
Become section, and the generation continuous print corresponding ODU0/1/2/3/4/flex letter that section regrouped
Number；
Described ethernet frame package module, is used for: by the interlaken signal of each passage
It is packaged into ethernet frame, simultaneously as needed for the interlaken of each passage as payload
The Ethernet mark of payload flags correspondence ethernet frame；
Described ethernet frame sending module, is used for: by exchange network based on ethernet frame,
The interlaken signal that packaged ethernet frame is given opposite end recovers module；
Described interlaken signal recovers module: be used for: by the Ethernet in ethernet frame
Mark, recovers the interlaken of this ethernet frame respective channel from the payload of this ethernet frame
Signal, gives SAR module by the interlaken signal recovered；Described SAR module will
The fixed packet long data section loaded in respective channel payload is reassembled into by original order accordingly
ODU0/1/2/3/4/flex signal；
Described multiple connection module, is used for: pacified by corresponding time slot by ODU0/1/2/3/4/flex signal
Row is multiplexed to complete OTN signal and sends.
On the basis of technique scheme, the frame of described interlaken signal includes burst control
Word processed, serial number, time stamp and ODU0/1/2/3/4/flex section, wherein, burst control word
A length of 64 bits, a length of 16 bits of serial number, a length of 32 bits of time stamp,
The length of ODU0/1/2/3/4/flex section is fixing, and length needs to determine according to system,
Wherein the 8 corresponding ODU0/1/2/3/4/flex of bit channels number in burst control word are in OTN
Timeslot number.
On the basis of technique scheme, described Ethernet be designated VLAN or
MPLS。
On the basis of technique scheme, the band that described interlaken signal assemble becomes
The ethernet frame of VLAN mark includes source address, destination address, TPID/VLAN, burst control
Word processed, serial number, time stamp, ODU0/1/2/3/4/flex section and FCS, wherein, TPID
Represent that value is the channel number in 0x8100, VLAN value and burst control word byte with 16 systems
One_to_one corresponding, a length of 64 bits of burst control word, a length of 16 bits of serial number,
A length of 32 bits of time stamp, the length of ODU0/1/2/3/4/flex section is fixing, root
Need to determine according to system, wherein 8 bit channels correspondences in burst control word
ODU0/1/2/3/4/flex timeslot number in OTN；Ethernet frame after encapsulation by based on
During the architecture for exchanging data equipment of Ethernet, the forwarding behavior of clean culture, multicast and broadcast is by mesh
Address determine；Packaged ethernet frame is at distributed switching architecture number based on Ethernet bag
According to realizing arbitrarily exchange in equipment, exchange to any single-deck/arbitrary port in this equipment.
On the basis of technique scheme, the band that described interlaken signal assemble becomes
MPLS mark ethernet frame include source address, destination address, control word,
Ethertype/LSP/PW, burst control word, serial number, time stamp, ODU0/1/2/3/4/flex
Section and FCS, wherein, the Ethertype value of MPLS frame is expressed as 0x8847 with 16 systems,
Channel number one_to_one corresponding in the value of LSP/PW and burst control word byte, burst control word
A length of 64 bits, a length of 16 bits of serial number, a length of 32 bits of time stamp,
The length of ODU0/1/2/3/4/flex section is fixing, and length needs to determine according to system,
Wherein the 8 corresponding ODU0/1/2/3/4/flex of bit channels number in burst control word are in OTN
Timeslot number；Ethernet frame after encapsulation passes through architecture for exchanging data equipment based on Ethernet
Time, the forwarding behavior of clean culture, multicast and broadcast is determined by destination address；Packaged ether
Net frame realizes arbitrarily exchange in distributed switching architecture data equipment based on Ethernet bag,
Exchange to any single-deck/arbitrary port in this equipment.
Compared with prior art, advantages of the present invention is as follows:
The OTN signal decomposition received is ODU0/1/2/3/4/flex signal by the present invention,
ODU0/1/2/3/4/flex signal is packaged into interlaken signal through SAR module, each
One passage of the most corresponding interlaken of ODU0/1/2/3/4/flex, by each passage
Interlaken signal is packaged into ethernet frame as payload, is each passage simultaneously
The mark that interlaken payload flags is corresponding；After being packaged into ethernet frame, by this ethernet frame
Giving opposite end through ethernet switched network, opposite end is identified by Ethernet from this ethernet frame
Recover the interlaken signal of respective channel, by this interlaken signal through SAR mould
Block restores corresponding ODU0/1/2/3/4/flex signal, and multiple connection module will
ODU0/1/2/3/4/flex signal multiplexing becomes OTN signal to send.OTN can be believed by the present invention
Number it is converted into Ethernet payload, switching plane based on Ethernet exchanging framework is regarded as unified
Switching plane, load and the Ethernet load of OTN can arbitrarily exchange on this unified platform,
Thus traditional switch is upgraded to the transmission equipment of unified exchange, for traditional base
Distributed switching architecture data equipment in Ethernet bag provides the transmission energy of OTN business interface
Power, makes traditional distributed switching architecture data equipment based on Ethernet bag have and meets
The multiple service supporting of POTN equipment standard requirement and the ability of transmission, extend the life of this kind equipment
The life cycle.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present invention, ODU0/1/2/3/4/flex is packaged into through SAR module
The frame format schematic diagram of interlaken signal.
Fig. 2 is that in the embodiment of the present invention, interlaken is packaged into the format conversion of ethernet frame and shows
It is intended to.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
The embodiment of the present invention provides a kind of method that OTN signal is converted to Ethernet payload,
Comprise the following steps:
A, it is ODU (Optical Channel Data by each OTN signal decomposition received
Unit, Optical Channel Data Unit-k) 0/1/2/3/4/flex (Optical channel Data Unit
Flexible, flexibly Optical Channel Data Unit-k) combination in any of these 6 signals, each
One passage of the most corresponding interlaken of ODU0/1/2/3/4/flex signal, interlanken
Agreement is a kind of chip chamber High Speed Data Transfer Protocol, and supports channel transmission；Then will
ODU0/1/2/3/4/flex signal give SAR (Segment And Regenerate, cut into slices with
And polymerization) module, shown in Figure 1, SAR module is used for: at transmitting terminal by continuous print
ODU0/1/2/3/4/flex signal is cut into the section of regular length according to the length of system requirements, with
Time plus corresponding channel number and management bag, be packaged into interlaken signal；Receiving terminal from
Interlaken signal is reduced into section, and the generation continuous print that section regrouped is corresponding
ODU0/1/2/3/4/flex signal.
Table 1, the frame format of interlaken signal
Ginseng is shown in Table 1, and the frame of interlaken signal includes burst control word (Burst control
Word), serial number (Sequence Number), time stamp (Timestamp) and
ODU0/1/2/3/4/flex cuts into slices (Fragment), wherein, and a length of the 64 of burst control word
Bit, a length of 16 bits of serial number, a length of 32 bits of time stamp,
The length of ODU0/1/2/3/4/flex section is fixing, and length needs to determine according to system,
Wherein the 8 corresponding ODU0/1/2/3/4/flex of bit channels number in burst control word are in OTN
Timeslot number.
B, shown in Figure 2, the interlaken signal of each passage is sealed as payload
Dress up ethernet frame, simultaneously as needed for the interlaken payload flags pair of each passage
The Ethernet answering ethernet frame identifies, and Ethernet mark can be VLAN (Virtual Local
Area Network, VLAN) or MPLS (Multi-Protocol Label
Switching, multiprotocol label switching) etc..
The form of the ethernet frame of table 2, band VLAN mark
Ginseng is shown in Table 2, the Ethernet of the band VLAN mark that interlaken signal assemble becomes
Frame includes source address, destination address, TPID (Tag Protocal Identifier, label protocol
Identifier)/VLAN, burst control word, serial number, time stamp, ODU0/1/2/3/4/flex cut
Sheet and FCS (Frame Check Sequence, Frame Check Sequence), wherein, TPID is with 16
System expression value be the channel number in 0x8100, VLAN value and burst control word byte one by one
Correspondence, a length of 64 bits of burst control word, a length of 16 bits of serial number, time stamp
A length of 32 bits, ODU0/1/2/3/4/flex section length be fixing, length root
Need to determine according to system, wherein 8 bit channels correspondences in burst control word
ODU0/1/2/3/4/flex timeslot number in OTN.
The form of the ethernet frame of table 3, band MPLS mark
Ginseng is shown in Table 3, the Ethernet of the band MPLS mark that interlaken signal assemble becomes
Frame includes source address, destination address, control word, Ethertype (ethernet frame type)/LSP
(Label Switched Path, label switched path)/PW (Pseudo Wire, pseudo-wire),
Burst control word, serial number, time stamp, ODU0/1/2/3/4/flex section and FCS, wherein,
The Ethertype value of MPLS frame is expressed as the value of 0x8847, LSP/PW with 16 systems and dashes forward
Send out the channel number one_to_one corresponding in control word byte, a length of 64 bits of burst control word,
A length of 16 bits of serial number, a length of 32 bits of time stamp, ODU0/1/2/3/4/flex
The length of section is fixing, and length needs to determine, wherein in burst control word according to system
The 8 corresponding ODU0/1/2/3/4/flex of bit channels number timeslot number in OTN.After encapsulation
Ethernet frame by architecture for exchanging data equipment based on Ethernet time, clean culture, multicast and wide
The forwarding behavior broadcast is determined by destination address.Packaged ethernet frame can be based on ether
Arbitrarily exchange in the distributed switching architecture data equipment of net bag, exchange to appointing in this equipment
Meaning single-deck/arbitrary port.
C, by exchange network based on ethernet frame, it is right to be given by packaged ethernet frame
End, opposite end is identified by the Ethernet in ethernet frame, recovers from the payload of this ethernet frame
Go out the interlaken signal of this ethernet frame respective channel, the interlaken signal that will recover
Give SAR module.
The fixed packet long data section loaded in respective channel payload is pressed former by D, SAR module
Having order to reassemble into corresponding ODU0/1/2/3/4/flex signal, multiple connection module will
ODU0/1/2/3/4/flex signal is multiplexed to complete OTN signal by corresponding Slot format and send
Go out.
The embodiment of the present invention also provides for a kind of for realizing being changed by OTN signal of said method
For the system of Ethernet payload, including decomposing module, SAR module, ethernet frame Encapsulation Moulds
Block, ethernet frame sending module, interlaken signal recover module and multiple connection module, wherein:
Decomposing module, is used for: by each OTN signal decomposition received be
The combination in any of these 6 signals of ODU0/1/2/3/4/flex, each ODU0/1/2/3/4/flex
One passage of the most corresponding interlaken of signal；Then by ODU0/1/2/3/4/flex signal
Give SAR module.
SAR module, is used for: at transmitting terminal by continuous print ODU0/1/2/3/4/flex signal root
The section of regular length it is cut into, simultaneously plus corresponding channel number and pipe according to the length of system requirements
Reason bag, is packaged into interlaken signal；It is reduced into from interlaken signal at receiving terminal and cuts
Sheet, and generation continuous print corresponding ODU0/1/2/3/4/flex signal that section is regrouped；
The frame of interlaken signal include burst control word, serial number, time stamp and
ODU0/1/2/3/4/flex cuts into slices, wherein, a length of 64 bits of burst control word, sequence
Number a length of 16 bits, a length of 32 bits of time stamp, ODU0/1/2/3/4/flex cut into slices
Length be fixing, length according to system need determine, wherein 8 in burst control word
Bit channels number corresponding ODU0/1/2/3/4/flex timeslot number in OTN.
Ethernet frame package module, is used for: using the interlaken signal of each passage as
Payload is packaged into ethernet frame, simultaneously as needed for the interlaken payload of each passage
Labelling correspondence ethernet frame Ethernet mark, Ethernet mark can be VLAN or
MPLS etc..
Interlaken signal assemble become band VLAN mark ethernet frame include source address,
Destination address, TPID/VLAN, burst control word, serial number, time stamp, ODU0/1/2/3/4/flex
Section and FCS, wherein, TPID with 16 systems represent value be 0x8100, VLAN value with
Channel number one_to_one corresponding in burst control word byte, a length of 64 bits of burst control word,
A length of 16 bits of serial number, a length of 32 bits of time stamp, ODU0/1/2/3/4/flex
The length of section is fixing, and length needs to determine, wherein in burst control word according to system
The 8 corresponding ODU0/1/2/3/4/flex of bit channels number timeslot number in OTN.
Interlaken signal assemble become band MPLS mark ethernet frame include source address,
Destination address, control word, Ethertype/LSP/PW, burst control word, serial number, time stamp,
ODU0/1/2/3/4/flex section and FCS, wherein, the Ethertype value of MPLS frame is with 16
System is expressed as the channel number in the value of 0x8847, LSP/PW and burst control word byte one by one
Correspondence, a length of 64 bits of burst control word, a length of 16 bits of serial number, time stamp
A length of 32 bits, ODU0/1/2/3/4/flex section length be fixing, length root
Need to determine according to system, wherein 8 bit channels correspondences in burst control word
ODU0/1/2/3/4/flex timeslot number in OTN.
When ethernet frame after encapsulation is by architecture for exchanging data equipment based on Ethernet, single
Broadcast, the forwarding behavior of multicast and broadcast is determined by destination address.Packaged ethernet frame can
Arbitrarily to exchange in distributed switching architecture data equipment based on Ethernet bag, exchange to
Any single-deck/arbitrary port in this equipment.
Ethernet frame sending module, is used for: by exchange network based on ethernet frame, will envelope
The ethernet frame installed is given the interlaken signal of opposite end and is recovered module.
Interlaken signal recovers module, is used for: identified by the Ethernet in ethernet frame,
The interlaken letter of this ethernet frame respective channel is recovered from the payload of this ethernet frame
Number, give SAR module by the interlaken signal recovered.
The fixed packet long data section loaded in respective channel payload is pressed original suitable by SAR module
Sequence reassembles into corresponding ODU0/1/2/3/4/flex signal.
Multiple connection module, is used for: ODU0/1/2/3/4/flex signal is multiple by corresponding Slot format
It is connected into complete OTN signal to send.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if
If these amendment and modification within the scope of the claims in the present invention and equivalent technologies thereof, then this
A little amendments and modification are also within protection scope of the present invention.
The prior art that the content not described in detail in description is known to the skilled person.
Claims (10)
1. the method that OTN signal is converted to Ethernet payload, it is characterised in that
Comprise the following steps:
A, it is ODU0/1/2/3/4/flex these 6 by each OTN signal decomposition received
The combination in any of signal, the most corresponding interlaken of each ODU0/1/2/3/4/flex signal
A passage；Then ODU0/1/2/3/4/flex signal is given section and polymerization SAR
Module；SAR module is used for: at transmitting terminal by continuous print ODU0/1/2/3/4/flex signal root
The section of regular length it is cut into, simultaneously plus corresponding channel number and pipe according to the length of system requirements
Reason bag, is packaged into interlaken signal；It is reduced into from interlaken signal at receiving terminal and cuts
Sheet, and generation continuous print corresponding ODU0/1/2/3/4/flex signal that section is regrouped；
B, the interlaken signal of each passage is packaged into ethernet frame as payload,
Simultaneously as needed for each passage interlaken payload flags correspondence ethernet frame with
Too network mark is known；
C, by exchange network based on ethernet frame, it is right to be given by packaged ethernet frame
End, opposite end is identified by the Ethernet in ethernet frame, recovers from the payload of this ethernet frame
Go out the interlaken signal of this ethernet frame respective channel, the interlaken signal that will recover
Give SAR module；
The fixed packet long data section loaded in respective channel payload is pressed former by D, SAR module
Having order to reassemble into corresponding ODU0/1/2/3/4/flex signal, multiple connection module will
ODU0/1/2/3/4/flex signal is multiplexed to complete OTN signal by corresponding Slot format and send
Go out.
2. the method as claimed in claim 1 OTN signal being converted to Ethernet payload,
It is characterized in that: the frame of described interlaken signal include burst control word, serial number, time
Stamp and ODU0/1/2/3/4/flex cut into slices, wherein, and a length of 64 bits of burst control word,
A length of 16 bits of serial number, a length of 32 bits of time stamp, ODU0/1/2/3/4/flex
The length of section is fixing, needs to determine according to system, wherein 8 in burst control word
Bit channels number corresponding ODU0/1/2/3/4/flex timeslot number in OTN.
3. the side that OTN signal is converted to Ethernet payload as claimed in claim 1 or 2
Method, it is characterised in that: described Ethernet is designated virtual LAN VLAN or multi-protocols
Tag switching MPLS.
4. the method as claimed in claim 3 OTN signal being converted to Ethernet payload,
It is characterized in that: the ethernet frame of the band VLAN mark that described interlaken signal assemble becomes
Including source address, destination address, tag protocol identifier TPID/VLAN, burst control word,
Serial number, time stamp, ODU0/1/2/3/4/flex section and Frame Check Sequence FCS, wherein, TPID
Represent that value is the channel number in 0x8100, VLAN value and burst control word byte with 16 systems
One_to_one corresponding, a length of 64 bits of burst control word, a length of 16 bits of serial number,
A length of 32 bits of time stamp, the length of ODU0/1/2/3/4/flex section is fixing, root
Need to determine according to system, wherein 8 bit channels correspondences in burst control word
ODU0/1/2/3/4/flex timeslot number in OTN；Ethernet frame after encapsulation by based on
During the architecture for exchanging data equipment of Ethernet, the forwarding behavior of clean culture, multicast and broadcast is by mesh
Address determine；Packaged ethernet frame is at distributed switching architecture number based on Ethernet bag
According to realizing arbitrarily exchange in equipment, exchange to any single-deck/arbitrary port in this equipment.
5. the method as claimed in claim 3 OTN signal being converted to Ethernet payload,
It is characterized in that: the ethernet frame of the band MPLS mark that described interlaken signal assemble becomes
Including source address, destination address, control word, ethernet frame type Ethertype/ Tag switching
Path LSP/ pseudo-wire PW, burst control word, serial number, time stamp, ODU0/1/2/3/4/flex
Section and FCS, wherein, the Ethertype value of MPLS frame is expressed as 0x8847 with 16 systems,
Channel number one_to_one corresponding in the value of LSP/PW and burst control word byte, burst control word
A length of 64 bits, a length of 16 bits of serial number, a length of 32 bits of time stamp,
The length of ODU0/1/2/3/4/flex section is fixing, needs to determine, wherein according to system
The 8 corresponding ODU0/1/2/3/4/flex of bit channels number in burst control word in OTN time
Gap number；When ethernet frame after encapsulation is by architecture for exchanging data equipment based on Ethernet, single
Broadcast, the forwarding behavior of multicast and broadcast is determined by destination address；Packaged ethernet frame exists
Realize arbitrarily exchange in distributed switching architecture data equipment based on Ethernet bag, exchange to
Any single-deck/arbitrary port in this equipment.
6. for realizing being turned by OTN signal of method according to any one of claim 1 to 5
Be changed to the system of Ethernet payload, it is characterised in that: include decomposing module, SAR module,
Ethernet frame package module, ethernet frame sending module, interlaken signal recover module and
Multiple connection module, wherein:
Described decomposing module, is used for: by each OTN signal decomposition received be
The combination in any of these 6 signals of ODU0/1/2/3/4/flex, each ODU0/1/2/3/4/flex
One passage of the most corresponding interlaken of signal；Then by ODU0/1/2/3/4/flex signal
Give SAR module；
Described SAR module, is used for: believed by continuous print ODU0/1/2/3/4/flex at transmitting terminal
Number it is cut into the section of regular length according to the length of system requirements, simultaneously plus corresponding channel number
With management bag, it is packaged into interlaken signal；Reduce from interlaken signal at receiving terminal
Become section, and the generation continuous print corresponding ODU0/1/2/3/4/flex letter that section regrouped
Number；
Described ethernet frame package module, is used for: by the interlaken signal of each passage
It is packaged into ethernet frame, simultaneously as needed for the interlaken of each passage as payload
The Ethernet mark of payload flags correspondence ethernet frame；
Described ethernet frame sending module, is used for: by exchange network based on ethernet frame,
The interlaken signal that packaged ethernet frame is given opposite end recovers module；
Described interlaken signal recovers module: be used for: by the Ethernet in ethernet frame
Mark, recovers the interlaken of this ethernet frame respective channel from the payload of this ethernet frame
Signal, gives SAR module by the interlaken signal recovered；Described SAR module will
The fixed packet long data section loaded in respective channel payload is reassembled into by original order accordingly
ODU0/1/2/3/4/flex signal；
Described multiple connection module, is used for: pacified by corresponding time slot by ODU0/1/2/3/4/flex signal
Row is multiplexed to complete OTN signal and sends.
7. the system that OTN signal is converted to Ethernet payload as claimed in claim 6,
It is characterized in that: the frame of described interlaken signal include burst control word, serial number, time
Stamp and ODU0/1/2/3/4/flex cut into slices, wherein, and a length of 64 bits of burst control word,
A length of 16 bits of serial number, a length of 32 bits of time stamp, ODU0/1/2/3/4/flex
The length of section is fixing, and length needs to determine, wherein in burst control word according to system
The 8 corresponding ODU0/1/2/3/4/flex of bit channels number timeslot number in OTN.
The most as claimed in claims 6 or 7 by what OTN signal was converted to Ethernet payload be
System, it is characterised in that: described Ethernet is designated VLAN or MPLS.
9. the system that OTN signal is converted to Ethernet payload as claimed in claim 8,
It is characterized in that: the ethernet frame of the band VLAN mark that described interlaken signal assemble becomes
Including source address, destination address, TPID/VLAN, burst control word, serial number, time stamp,
ODU0/1/2/3/4/flex section and FCS, wherein, with 16 systems, TPID represents that value is
Channel number one_to_one corresponding in 0x8100, VLAN value and burst control word byte, burst control
A length of 64 bits of word, a length of 16 bits of serial number, a length of 32 ratios of time stamp
Spy, the length of ODU0/1/2/3/4/flex section is fixing, needs to determine according to system,
Wherein the 8 corresponding ODU0/1/2/3/4/flex of bit channels number in burst control word are in OTN
Timeslot number；Ethernet frame after encapsulation passes through architecture for exchanging data equipment based on Ethernet
Time, the forwarding behavior of clean culture, multicast and broadcast is determined by destination address；Packaged ether
Net frame realizes arbitrarily exchange in distributed switching architecture data equipment based on Ethernet bag,
Exchange to any single-deck/arbitrary port in this equipment.
10. by what OTN signal was converted to Ethernet payload it is as claimed in claim 8
System, it is characterised in that: the ether of the band MPLS mark that described interlaken signal assemble becomes
Net frame includes source address, destination address, control word, Ethertype/LSP/PW, burst control
Word, serial number, time stamp, ODU0/1/2/3/4/flex section and FCS, wherein, MPLS frame
Ethertype value be expressed as value and the burst control word of 0x8847, LSP/PW with 16 systems
Channel number one_to_one corresponding in byte, a length of 64 bits of burst control word, serial number
A length of 16 bits, a length of 32 bits of time stamp, the length of ODU0/1/2/3/4/flex section
Degree is fixing, and length needs to determine according to system, wherein 8 bits in burst control word
Channel number correspondence ODU0/1/2/3/4/flex timeslot number in OTN；Ethernet after encapsulation
When frame is by architecture for exchanging data equipment based on Ethernet, the forwarding of clean culture, multicast and broadcast
Behavior is determined by destination address；Packaged ethernet frame is based on Ethernet bag distributed
Realize arbitrarily exchange in architecture for exchanging data equipment, exchange to any single-deck in this equipment/appoint
Meaning port.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410017258.2A CN103795605B (en) | 2014-01-14 | 2014-01-14 | Method and system for converting OTN signals into Ethernet payloads |
| RU2016100224A RU2649954C2 (en) | 2014-01-14 | 2014-09-18 | Method and system of otn signal transformation in the useful load of ethernet |
| PCT/CN2014/086803 WO2015106577A1 (en) | 2014-01-14 | 2014-09-18 | Method and system for converting otn signal into ethernet payload |
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| CN201410017258.2A CN103795605B (en) | 2014-01-14 | 2014-01-14 | Method and system for converting OTN signals into Ethernet payloads |
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| CN103795605B true CN103795605B (en) | 2017-01-11 |
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| RU (1) | RU2649954C2 (en) |
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| CN103795605B (en) * | 2014-01-14 | 2017-01-11 | 烽火通信科技股份有限公司 | Method and system for converting OTN signals into Ethernet payloads |
| US10637604B2 (en) | 2014-10-24 | 2020-04-28 | Ciena Corporation | Flexible ethernet and multi link gearbox mapping procedure to optical transport network |
| US10225037B2 (en) | 2014-10-24 | 2019-03-05 | Ciena Corporation | Channelized ODUflex systems and methods |
| CN106788855B (en) * | 2015-11-23 | 2018-12-07 | 华为技术有限公司 | A kind of the optical transfer network bearing method and device of flexible Ethernet service |
| CN107786409B (en) * | 2016-08-26 | 2020-08-07 | 中国电信股份有限公司 | Method and device for realizing ODU0 channel bearing service |
| CN108307254A (en) * | 2017-01-13 | 2018-07-20 | 中兴通讯股份有限公司 | A kind of POTN method for processing business, apparatus and system |
| CN107948040A (en) * | 2017-11-20 | 2018-04-20 | 烽火通信科技股份有限公司 | Realize the system and method for ILK interface business and Ethernet interface business intercommunication |
| CN108880733A (en) * | 2018-05-30 | 2018-11-23 | 烽火通信科技股份有限公司 | The method and device of low speed TDM business transmission is realized on unified load bearing equipment |
| CN112887117B (en) * | 2019-11-29 | 2023-09-19 | 中国移动通信有限公司研究院 | Method, equipment and medium for accessing and configuring network slice |
| CN114173223A (en) * | 2020-08-21 | 2022-03-11 | 中兴通讯股份有限公司 | Service scheduling method, packet optical transport network device and storage medium |
| CN114765566A (en) * | 2020-12-30 | 2022-07-19 | 中兴通讯股份有限公司 | Multi-channel service transmission method, system, storage medium and electronic device |
| CN113949743A (en) * | 2021-11-22 | 2022-01-18 | 烽火通信科技股份有限公司 | ODU payload bearing method and system |
| CN115297073B (en) * | 2022-07-22 | 2024-01-26 | 烽火通信科技股份有限公司 | E1 service transmission method and device |
| CN115550104B (en) * | 2022-12-06 | 2023-08-15 | 北京华环电子股份有限公司 | AXI bus expansion method, device, electronic equipment and storage medium |
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| CN103795605B (en) * | 2014-01-14 | 2017-01-11 | 烽火通信科技股份有限公司 | Method and system for converting OTN signals into Ethernet payloads |
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| CN101355821A (en) * | 2008-09-03 | 2009-01-28 | 中兴通讯股份有限公司 | Method and apparatus for transmitting 10G bit optical fiber channel service in optical transmission network |
| CN103200467A (en) * | 2013-03-14 | 2013-07-10 | 烽火通信科技股份有限公司 | Device and method for transmitting network element protocol messages in optical network equipment |
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| CN103795605A (en) | 2014-05-14 |
| RU2016100224A (en) | 2018-02-20 |
| WO2015106577A1 (en) | 2015-07-23 |
| RU2649954C2 (en) | 2018-04-05 |
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