CN102291631B - Hybrid access and transmission method and device of packet switching and optical transport network service - Google Patents
Hybrid access and transmission method and device of packet switching and optical transport network service Download PDFInfo
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Abstract
The invention provides a hybrid access and transmission method and device of packet switching and optical transport network service. The method comprises the following steps: a hybrid service receiving module maps the received packet switching service data into a non-permanent speed optical channel data unit ODUflex data frame structure, or maps the received optical transport network service data into a corresponding optical channel data unit ODUk data frame structure; a cross module schedules the ODUflex data frame or ODUk data frame mapped by the hybrid service receiving module to a corresponding optical transport network interface module in a cross way; and the optical transport network interface module maps the received ODUflex data frame or ODUk data frame into an optical transport network data frame conforming to the first preset requirement, and transmits the mapped optical transport network data frame. Through the invention, hybrid access and transmission of the packet switching service and optical transport network service is realized in the same device, and thus the networking and maintenance cost of the network adopting the packet switching technology and the optical transport network technology can be reduced.
Description
Technical field
The present invention relates to communication technical field, and in particular to a kind of packet switch and the mixing of optical transport network service access,
Sending method and device.
Background technology
Optical transfer network (OTN：Optical Transport Network), it is with wavelength-division multiplex (WDM：Wavelength
Division Multiplexing) based on technology, in the transmission net of light layer tissue network, it is follow-on Backbone Transport Network,
The characteristic of transmission is configured with high capacity of switch, there is provided the mapping of multiple service signals and transparent transmission, there is provided bulky grain
Traffic scheduling and various protection reforestation practices, there is provided perfect performance and fault-detecting ability, possess flexible various networking sides
The multiple protective ability of formula, electric layer and photosphere, at present, OTN technologies are the first-selections of bottom transmission.
However, with the fast development of Internet service, and a large amount of deployment of 3G network, following Long Term Evolution (LTE)
The rapid maturation of technology, network IP operation are presented sudden growth, and the development trend of IPization occurs in network transmission, therefore, Gao Xing
Packet switch (the PTN of energy：Packet Transport Network) technology arises at the historic moment.PTN technologies can provide abundant
Operate (Operation), management (Administration) and safeguard (Maintenance), be i.e. OAM mechanism, it is many with improving
The protection recovery capability of sample, the rapid operator that obtains the advantages of all kinds of service access demands such as base station, big customer can be met
Favor.
OTN technologies and PTN technologies respectively have advantage, in order to combine both advantages, in existing networking mode, many times need
PTN device and OTN equipment are disposed simultaneously, using the networking technology of PTN+OTN, adopt PTN technologies in marginal layer, and in core
Net transport layer uses OTN transmission equipments.Fig. 1 is traditional PTN+OTN networking technologys, and such networking technology not only increased IP
Service accessibility, while improve convergence and the flexible dispatching ability of network, is conducive to Metropolitan Area Network (MAN) towards unification, fusion
Flattening e-learning quality, promotes transmission network to develop to more rational direction.
However, the networking technology of existing PTN+OTN needs to possess OTN equipment and PTN device, dotted line part in such as Fig. 1 simultaneously
(in Fig. 1, NE is network element, WDM is WDM) shown in point, needs a large amount of optical fiber connections, while needing two sets of networkings to divide
No matter reason, this not only increased networking and the complexity safeguarded, and increased the operation cost of operator.
The content of the invention
The technical problem to be solved is to provide a kind of packet switch and the mixing of optical transport network service is accessed, sent out
Delivery method and device, so as to reduce the network using packet-switch technology and optical transport network technology networking and safeguard into
This.
To solve above-mentioned technical problem, offer scheme of the present invention is as follows：
Embodiments provide the mixing access device of a kind of packet switch and optical transport network service, including mixing industry
Business receiver module, Cross module and light transmission interface module, wherein：
Mixed service receiver module, for the packet switching service data of reception are mapped as without fixed rate optical channel number
According to unit ODUflex data frame structures, or the optical transport network service data of reception are mapped as into corresponding optical channel data sheet
First ODUk data frame structures；
Cross module, hands over for the ODUflex Frames or ODUk Frames after mixed service receiver module is mapped
Fork is dispatched to corresponding optical transfer network interface module；
Optical transfer network interface module, for the ODUflex Frames or ODUk Frames of reception to be mapped as meeting
The optical transfer network Frame of one preset requirement, and send the optical transfer network Frame after mapping.
Preferably, in described device, the mixed service receiver module includes：
Receiving unit, for receiving business datum, the business datum includes packet switching service data and optical transfer network
Business datum；
First map unit, the packet switching service data for receiving unit is received are mapped as ODUflex Frames
Structure, or the optical transport network service data that receiving unit is received are mapped as into corresponding ODUk data frame structures.
Preferably, in described device, the quantity of the receiving unit arranged in the mixed service receiver module is and described
The transmission light way amount correspondence adopted by the business datum that mixed service receiver module is received.
Preferably, in described device, the mixed service receiver module also includes：
Second map unit, for according to the second preset requirement, the ODUflex Frames after the first map unit is mapped
Or ODUk Frames, map in the device internal transmission passage of predetermined number.
Preferably, in described device, the transmission light adopted by the business datum that the mixed service receiver module is received
Bandwidth summation of the bandwidth summation on road less than or equal to the device internal transmission passage of the predetermined number.
Preferably, in described device, the light transmits interface module, is additionally operable to the optical transport network service data that will be received
It is mapped as ODUflex Frames or ODUk Frames；
The Cross module, is additionally operable to light is transmitted ODUflex Frames or ODUk data after interface module mapping
Frame scheduling is to mixed service receiver module；
The mixed service receiver module, is additionally operable to the ODUflex Frames demapping for carrying out cross unit scheduling to divide
Group exchanges business datum, or is optical transport network service data by the ODUk Frames demapping that cross unit scheduling comes, concurrently
Send the packet switching service data after demapping or optical transport network service data.
Preferably, in described device, also include：
Management module, for being managed to the clock and power supply in device；
Monitoring module, for the access to packet switching service and optical transport network service, device internal transmission and transmission
Process is monitored management.
The embodiment of the present invention additionally provides the hybrid access method of a kind of packet switch and optical transport network service, including：
Mixed service receiver module is mapped as the packet switching service data of reception without fixed rate optical channel data sheet
First ODUflex data frame structures, or the optical transport network service data of reception are mapped as into corresponding Optical Channel Data Unit-k
ODUk data frame structures；
Cross module by mixed service receiver module mapping after ODUflex Frames or ODUk Frame cross schedulings
To corresponding optical transfer network interface module；
The ODUflex Frames or ODUk Frames of reception are mapped as meeting first and are preset by optical transfer network interface module
The optical transfer network Frame of requirement, and send the optical transfer network Frame after mapping.
Preferably, in described method, the packet switching service data for receiving are mapped by the mixed service receiver module
Be without fixed rate Optical Channel Data Unit-k ODUflex data frame structures, or by receive optical transport network service data mapping
Include for corresponding Optical Channel Data Unit-k ODUk data frame structures：
According to the second preset requirement, ODUflex Frames or ODUk Frames are mapped in the device of predetermined number
In portion's transmission channel.
Preferably, in described method, the Cross module by mixed service receiver module mapping after ODUflex data
Frame or ODUk Frames cross scheduling include to corresponding optical transfer network interface module：
It is right that ODUflex Frames or ODUk Frames in device internal transmission passage is dispatched to by the Cross module
The optical transfer network interface module answered.
The embodiment of the present invention additionally provides the mixing sending method of a kind of packet switch and optical transport network service, including：
Light transmission interface module is mapped as the optical transport network service data of reception without fixed rate Optical Channel Data Unit-k
ODUflex Frames or Optical Channel Data Unit-k ODUk Frames；
Cross module light is transmitted ODUflex Frames or ODUk Frames after interface module mapping and is dispatched to mixing
Business sending module；
The ODUflex Frames demapping that cross unit scheduling comes is packet switching service number by mixed service sending module
According to, or be optical transport network service data by cross unit scheduling next ODUk Frames demapping, and after sending demapping
Packet switching service or optical transport network service.
From the above as can be seen that packet switch provided in an embodiment of the present invention and the mixing of optical transport network service connect
Enter, sending method and device, by the packet switching service data of reception being mapped as without fixation by mixed service receiver module
Speed Optical Channel Data Unit-k ODUflex data frame structures, or the optical transport network service data of reception are mapped as corresponding
Optical Channel Data Unit-k ODUk data frame structures；ODUflex data after mapped by mixed service receiver module
Frame or ODUk Frames cross scheduling are to corresponding optical transfer network interface module；By optical transfer network interface module by receive
ODUflex Frames or ODUk Frames are mapped as the optical transfer network Frame for meeting the first preset requirement, and send mapping
Optical transfer network Frame afterwards.So as in the same apparatus, realize packet switching service and optical transport network service be mixed into and
Send, therefore the networking of network using packet-switch technology and optical transport network technology and the cost safeguarded can be reduced.
Description of the drawings
Fig. 1 is PTN+OTN schematic network structures in prior art；
Fig. 2 is the mixing access of PTN and OTN business provided in an embodiment of the present invention, dispensing device structural representation one；
Fig. 3 is the PTN+OTN nets for mixing access, dispensing device using PTN and OTN business provided in an embodiment of the present invention
Network structural representation；
Fig. 4 is the mixing access of PTN and OTN business provided in an embodiment of the present invention, mixed service is received in dispensing device
The structural representation of module；
Fig. 5 is the mixing access of PTN and OTN business provided in an embodiment of the present invention, dispensing device structural representation two；
Fig. 6 is the mixing access of PTN and OTN business provided in an embodiment of the present invention, dispensing device concrete operation method stream
Journey schematic diagram one；
Fig. 7 is the mixing access of PTN and OTN business provided in an embodiment of the present invention, dispensing device concrete operation method stream
Journey schematic diagram two.
Specific embodiment
The mixing for embodiments providing a kind of packet switch (PTN) business and optical transfer network (OTN) business is accessed
Device, as shown in Figure 2, the device can specifically include：
Mixed service receiver module 21, for the PTN business datums of reception are mapped as without fixed rate optical channel data
Unit (ODUflex) Frame, or the OTN business datums of reception are mapped as into corresponding Optical Channel Data Unit-k (ODUk) number
According to frame.
Cross module 22, for ODUflex Frames or ODUk data after mixed service receiver module 21 is mapped
Frame cross scheduling is to corresponding optical transfer network interface module 23；
Optical transfer network interface module 23, for the ODUflex Frames or ODUk Frames of reception to be mapped as meeting
The OTN Frames of the first preset requirement, and send the OTN Frames after mapping.
The mixing access device of PTN business provided in an embodiment of the present invention and OTN business, by configuring at service access end
The mixed service receiver module 21 for accessing PTN and OTN business can be mixed, PTN business and OTN business is received, meanwhile, by two
The business datum that different business are each mapped to ODUflex data frame structures or ODUk data frame structures is planted, by crossed module
Block 22 carries out cross scheduling to corresponding OTN interface modules 23, by OTN interface modules 23 by ODUflex Frames or ODUk
Frame is mapped as the business datum of the OTN data frame structures of the first preset requirement (for example G.709 waiting standard agreement), and will
OTN Frames are sent to wavelength-division multiplex (WDM) equipment and carry out closing ripple transmission, so as to realize the fusion of OTN and PTN technologies.Using
The networking schematic diagram of PTN business provided in an embodiment of the present invention and OTN mix of traffic access devices specifically can be as shown in Figure 3.
In a specific embodiment of the invention, the mixed service AM access module 21 involved by the embodiment of the present invention can be arranged
There is receiving unit 211, for receiving PTN and OTN business.
Receiving unit 211 specifically can behave as a kind of smooth business interface, and different according to different service needed configurations
Light business interface module, such as miniature pluggable module (SFP：Small Form-factor Pluggables), extended pattern is little
Type pluggable module (SFP+), 10G speed pluggable modules (XFP), 100G speed pluggable modules (CFP), 4 passages are small-sized can
The optical modules such as plug-in module (QSFP) are used as business receiving unit 211.The class of business that receiving unit 211 can be accessed specifically may be used
With the PTN business including GE (gigabit Ethernet), 10GE, 40GE and 100GE, and all speed OTN business etc..Receiving unit
211 configuration quantity flexibly can also be grasped as needed, if the business datum for receiving is passed using T roads transmission light path
It is defeated, then the receiving unit 211 that quantity is similarly T can be set in mixed service receiver module, be received per business all the way for correspondence
In data, the i.e. embodiment of the present invention, the quantity of the receiving unit 211 arranged in mixed service receiver module 21, can with mix industry
The transmission light way amount correspondence adopted by the business datum that business receiver module 21 is received.
In a specific embodiment of the invention, mixed service receiver module 21 is also provided with map unit 212 (i.e. the
One map unit), the PTN business datums for receiving unit 211 is received are mapped as the business number of ODUflex data frame structures
According to, or the OTN business datums that receiving unit 211 is received are mapped as the business datum of corresponding ODUk data frame structures.
For PTN business, map unit 212 can be according to the retransmission protocol of PTN relevant criterion definition, such as multi-protocols mark
Sign transmission standard (MPLS-TP), QinQ and MACinMAC etc., and according to the original service data information of PTN business datums, for example
PTN business is mapped as the business datum of ODUflex data frame structures by destination address information etc..And for OTN business, mapping
Unit 212 based on the speed of OTN business datums, can be mapped to corresponding speed ODUk (k=0,1,2,3,4) Frame knot
The business datum of structure, and, OTN business can also be mapped to map unit 212 the business number of ODUflex data frame structures
According to.
In a specific embodiment of the invention, mixing receiver module 21 is also provided with map unit 213, and (i.e. second reflects
Penetrate unit), for according to a preset requirement, the ODUflex Frames after map unit 212 (i.e. the first map unit) is mapped
Or ODUk Frames, map in the device internal transmission passage of predetermined number (K).
Specifically, if it is PTN business to access, according to the retransmission protocol of PTN relevant criterion definition, by PTN business numbers
According to be mapped to be arranged at backboard side ODUflex virtual transmissions passage in K roads i.e. device internal transmission passage in；If access is
OTN business, then equally map to OTN business in the ODUk virtual transmission passages of K roads according to OTN related protocols standard.
Device internal transmission passage involved by the embodiment of the present invention, be particularly used in realize ODUflex Frames and
The device internal transmission of ODUk Frames, which using physical transmission channels of speed such as 5G etc., and be able to can be adopted when implementing
Protected with the mode of redundancy backup.The predetermined number of device internal transmission passage in the embodiment of the present invention, can with device in
The transfer rate of portion's transmission channel and needing carries out the big of the ODUflex Frames of device internal transmission and ODUk Frames
It is little, flexible configuration.
In the embodiment of the present invention, the bandwidth of the transmission light path adopted by the business datum that mixed service receiver module 21 is received
Summation, can be less than or equal to the bandwidth summation of the device internal transmission passage of predetermined number, i.e., the business datum that T roads receive is adopted
The bandwidth summation of transmission light path, less than or equal to the bandwidth summation of K roads device internal transmission passage.
It should be noted that the mixing access device of PTN and OTN business provided in an embodiment of the present invention, can be applicable to double
Under work pattern, therefore, the mixing access device of PTN business and OTN business can also be the mixing of PTN business and OTN business simultaneously
Dispensing device, and mixed service receiver module 21 can be additionally used in realizing that the mixing of PTN business and OTN business sends simultaneously, can be with
By backboard side next (being come by 22 cross scheduling of Cross module) K roads ODUflex demappings to T roads packet switching service, then
PTN data is activations are carried out according to PTN relevant criterion；Or reception comes (being come by 22 cross scheduling of Cross module to line side
) ODUk business, according to the OTN business of OTN relevant criterion demapping to rate matched.It can be seen that, receiving unit 211 may be used also
For PTN business and the transmitting element of OTN business.
The concrete structure schematic diagram of the mixed service AM access module 21 involved by the embodiment of the present invention can be as shown in Figure 4.
Cross module 22 involved by the embodiment of the present invention, is the traffic scheduling module of device, for for mixed service
The business datum of the ODUflex and ODUk data frame structures that reception device 21 is sent by transmission channel in the device of K roads is carried out
Channel scheduling, these ODUflex and ODUk Frames are sent in (such as rate-matched) OTN interface modules 23 accordingly.
In addition, the business of ODUflex and ODUk data frame structures that OTN interface modules 23 can also be sent by Cross module 22
Data are that Frame is dispatched in mixed service receiver module 21, so that mixed service receiver module 21 (is now mixed service
Sending module) after corresponding demapping is completed, PTN the or OTN business for generating is sent.
In order to ensure the stable operation of device, in the embodiment of the present invention, Cross module 22 can use 1:N is protected, you can set
Purchase the Cross module 22 of part, to play a part of redundancy protecting.
OTN interface modules 23 involved by the embodiment of the present invention, for by from 22 cross scheduling of Cross module come
The business datum of ODUflex and ODUk data frame structures is mapped as the OTN business numbers of the different wave length for meeting wdm system requirement
According to, and the OTN business datums after remapping are sent to wdm system.
Meanwhile, the OTN business datums that wdm system can also be sent by OTN interface modules 23 are mapped as meeting Cross module
22 require, that is, be mapped as the business datum of ODUflex and ODUk data frame structures, and by the ODUflex after remapping and
ODUk Frames are sent to Cross module 22.
According to different business needs, OTN interface modules 23 are specifically as follows XFP, CFP, SFP+ installed in line side,
The optical modules such as QSFP, can access the OTN business of the different business speed such as from 10G to 100G.
In a specific embodiment of the invention, in device, be also provided with management module 24, in device when
Clock and power supply etc. carry out unified management.
In a specific embodiment of the invention, monitoring module 25 in device, is also provided with, for arranging in device
Functional module carry out unified monitoring management, and the reception to PTN and OTN business, demapping, mapping, transmission, cross scheduling
Etc. unified management is carried out, so as to realize the network management advantage of comprehensive PTN and OTN equipment.
The mixing of PTN business provided in an embodiment of the present invention and OTN business accesses the concrete structure of (transmission) device and illustrates
Figure can be as shown in Figure 5.
For the ease of the understanding to the embodiment of the present invention, below PTN and OTN business provided in an embodiment of the present invention is mixed
Splice grafting enters (send) concrete methods of realizing of device carries out detailed statement.
In one embodiment, the mixing of PTN and OTN business provided in an embodiment of the present invention accesses (transmission) device
It is interior, can be provided with 4 XFP optical modules (4 receiving units 211 being provided with mixed service receiver module 21), realize 4 tunnels
10GE business and speed are accessed for the OTN mix of traffic of 10Gb/s.
The process that implements of the embodiment includes as shown in Figure 6：
Step 601, mixed service receiver module 21 receive business datum.
4 receiving units 211 for arranging can specifically be passed through, the OTN industry of 4 road 10GE or speed for 10G is received respectively
Business data.
Step 602, mixed service receiver module 21 remap to business datum.
Specifically, the PTN business datums (i.e. 4 road 10GE business) that receiving unit 211 can be received by map unit 212,
The retransmission protocol defined according to PTN relevant criterion carries out coding mapping, and PTN business datums are mapped to ODUflex Frames knot
The business datum of structure.
In addition, map unit 212 can also carry out OTN to correspondence ODUk to the OTN business datums that receiving unit 211 is received
Business conversion, OTN business of the speed for 10G is mapped as into the business datum of the less ODUk data frame structures of granule, for example
ODU1。
In the embodiment of the present invention, for PTN business or the process that remaps of OTN business, and follow-up business are passed
The operation such as the defeated, selection of device internal transmission passage, cross scheduling can be based on corresponding consensus standard (example by monitoring module 25
As G.798) unified supervision is carried out, and setting to involved parameter (such as transmission channel quantity etc.) is realized by monitoring module 25
Put.
Business datum after mapping is mapped to transmit in corresponding device and is led to by step 603, mixed service receiver module 21
In road.
Specifically, ODUflex the or ODUk Frames after can be mapped map unit 212 map to K
It is transmitted in bar (such as 16) device internal transmission passage.
Step 604, cross scheduling module 22 is by ODUflex or ODUk Frames cross scheduling to corresponding OTN interfaces mould
Block 23.
Step 605, OTN interface modules 23 are mapped again to ODUflex the or ODUk Frames that cross scheduling comes.
Specifically, can by OTN interface modules 23 by K strip device internal transmission passages business datum (ODUflex or
ODUk Frames) business datum of ODU3 frame structures is mapped as, now, the concretely 40G interface moulds of OTN interface modules 23
Block.
Step 606, OTN interface modules 23 send the business datum of the ODU3 frame structures after mapping to wdm system equipment.
As the mixing access device of PTN business provided in an embodiment of the present invention and OTN business can be additionally used in realizing PTN industry
Business and the mixing of OTN business send, therefore, continue in this embodiment the rear and can also comprise the following steps：
Step 607, OTN interface modules 23 receive the OTN business datums that wdm system sends.Such as ODU3 data frame structures
40G OTN business datums.
40G OTN business datums are remapped to ODUflex or ODUk Frames knot by step 608, OTN interface modules 23
The business datum of structure.
Step 609, OTN interface modules 23 will be remapped to ODUflex or ODUk Frames and map to K bars (such as 16
Bar) business transmission is carried out in device internal transmission passage.
ODUflex or ODUk Frames in K strip device internal transmission passages are adjusted by step 610, cross scheduling module 22
Spend into mixed service receiver module 21.
Step 611, ODUflex the or ODUk Frames that mixed service receiver module 21 will be received, according to corresponding forwarding
Consensus standard carries out demapping, is 4 road 10GE business datums by ODUflex Frames demapping, or by ODUk Frame solutions
It is mapped as the OTN business datums that 4 tunnel speed are 10G.
Step 612, mixed service receiver module 21 send PTN the and OTN business datums after demapping.
In another specific embodiment, the mixing of PTN business provided in an embodiment of the present invention and OTN business accesses (transmission)
In device, can be provided with 10 SFP optical modules (10 receiving units 211 being provided with mixed service receiver module 21), it is real
The mixing of existing 10 road optical channel transmission unit (OTU), 1 business and GE business is accessed.
The process that implements of the embodiment includes as shown in Figure 7：
Step 701, mixed service receiver module 21 receive business datum.
10 receiving units 211 for arranging can specifically be passed through, the OTU1 of 10 road GE or speed for 2.5G is received respectively
Business datum.
Step 702, mixed service receiver module 21 remap to business datum.
Specifically, the PTN business datums (i.e. 10 road GE business) that can be received to receiving unit 211 by map unit 212, press
Coding mapping is carried out according to the retransmission protocol of PTN relevant criterion definition, PTN business datums are mapped to into ODUflex data frame structures
Business datum.
In addition, the OTU1 business datums that receiving unit 211 can also be received by map unit 212 to be mapped as granule less
ODUk business datums, such as ODU0.
Business datum after remapping is mapped to corresponding K bars (for example by step 703, mixed service receiver module 21
20) in device in transmission channel.
Step 704, cross scheduling module 22 is by ODUflex or ODUk Frames cross scheduling to corresponding OTN interfaces mould
The OTU2 interface modules of block 23, such as 4 10G.
Step 705, OTN interface modules 23 are mapped again to ODUflex the or ODUk Frames that cross scheduling comes, example
The OTU2 that speed is 10G is mapped as such as.
Step 706, OTN interface modules 23 send the OTU2 after mapping again to wdm system.
By foregoing description as can be seen that the mixing of PTN business provided in an embodiment of the present invention and OTN business is accessed, sent out
Delivery method and device, by the PTN business datums of reception are mapped as ODUflex data frame structures by mixed service receiver module
Business datum, or the business datum that the OTN business datums of reception are mapped as corresponding ODUk data frame structures；By intersecting
Module is by the ODUflex Frames or ODUk Frames cross scheduling after mapping to corresponding optical transfer network interface module；By
The ODUflex Frames or ODUk Frames of reception are mapped as meeting the light of the first preset requirement by optical transfer network interface module
Transmission net data frame, and send the optical transfer network Frame after mapping.So as to PTN business and OTN industry are realized in same equipment
The mixing of business is accessed and is sent, and improves the integrated level of equipment, lowers the equipment cost of PTN+OTN network interworkings and answering for wiring
Miscellaneous degree, reduces power consumption and saves fund；And, the receiving unit in device can flexible configuration as needed, so as to improve dress
The configuration flexibility put, and it is more prone to realize that configuration is also more compared to optical fiber connection in traditional PTN+OTN network interworkings
It is convenient, flexible, playing outside the characteristics of PTN device configures convenient, flexible, the original bandwidth of OTN equipment can also made full use of, tied
Closed the advantage of both PTN and OTN, it is possible to achieve expand PTN functions on the basis of original OTN equipment so that PTN and
OTN is the same, the ability for possessing little particle flexible dispatching；In addition, device is when realizing that PTN and OTN mix of traffic is accessed, by supervising
The control same management of module, and carry out unifying configuration to two kinds of business, improves the reliability of network management, and advantageously in
The analysis of failure, follows the trail of and positions.
The above is only embodiments of the present invention, it is noted that for those skilled in the art come
Say, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (11)
1. the mixing access device of a kind of packet switch and optical transport network service, it is characterised in that receive mould including mixed service
Block, Cross module and light transmission interface module, wherein：
Mixed service receiver module, for the packet switching service data of reception are mapped as without fixed rate optical channel data sheet
First ODUflex data frame structures, or the optical transport network service data of reception are mapped as into corresponding Optical Channel Data Unit-k
ODUk data frame structures；
Cross module, intersects for the ODUflex Frames or ODUk Frames after mixed service receiver module is mapped and adjusts
Spend to corresponding optical transfer network interface module；
Optical transfer network interface module, for being mapped as meeting first pre- by the ODUflex Frames or ODUk Frames of reception
If the optical transfer network Frame for requiring, and send the optical transfer network Frame after mapping.
2. device as claimed in claim 1, it is characterised in that the mixed service receiver module includes：
Receiving unit, for receiving business datum, the business datum includes packet switching service data and optical transport network service
Data；
First map unit, the packet switching service data for receiving unit is received are mapped as ODUflex data frame structures,
Or the optical transport network service data that receiving unit is received are mapped as into corresponding ODUk data frame structures.
3. device as claimed in claim 2, it is characterised in that the receiving unit arranged in the mixed service receiver module
Quantity, it is corresponding with the transmission light way amount adopted by the business datum that the mixed service receiver module is received.
4. device as claimed in claim 3, it is characterised in that the mixed service receiver module also includes：
Second map unit, for according to the second preset requirement, ODUflex Frames after the first map unit is mapped or
ODUk Frames, map in the device internal transmission passage of predetermined number.
5. device as claimed in claim 4, it is characterised in that the business datum that the mixed service receiver module is received is adopted
Bandwidth summation of the bandwidth summation of transmission light path less than or equal to the device internal transmission passage of the predetermined number.
6. device as claimed in claim 1, it is characterised in that the light transmits interface module, the light for being additionally operable to receive are passed
Network service data are sent to be mapped as ODUflex Frames or ODUk Frames；
The Cross module, is additionally operable to for light to transmit the ODUflex Frames after interface module mapping or ODUk Frames tune
Spend to mixed service receiver module；
The mixed service receiver module, is additionally operable to the ODUflex Frames demapping that cross unit scheduling comes is handed over for packet
Business datum is changed, or the ODUk Frames demapping that cross unit scheduling is come is optical transport network service data, and send solution
Packet switching service data or optical transport network service data after mapping.
7. the device as described in any one of claim 1 to 6, it is characterised in that described device also includes：
Management module, for being managed to the clock and power supply in device；
Monitoring module, for the access to packet switching service and optical transport network service, device internal transmission and transmission process
It is monitored management.
8. the hybrid access method of a kind of packet switch and optical transport network service, it is characterised in that include：
Mixed service receiver module is mapped as the packet switching service data of reception without fixed rate Optical Channel Data Unit-k
ODUflex data frame structures, or the optical transport network service data of reception are mapped as into corresponding Optical Channel Data Unit-k ODUk
Data frame structure；
Cross module is by the ODUflex Frames or ODUk Frames cross scheduling after the mapping of mixed service receiver module to right
The optical transfer network interface module answered；
The ODUflex Frames or ODUk Frames of reception are mapped as meeting the first preset requirement by optical transfer network interface module
Optical transfer network Frame, and send mapping after optical transfer network Frame.
9. method as claimed in claim 8, it is characterised in that the packet switch industry that the mixed service receiver module will be received
Business data are mapped as without fixed rate Optical Channel Data Unit-k ODUflex data frame structures, or the optical transfer network industry that will be received
Business data are mapped as corresponding Optical Channel Data Unit-k ODUk data frame structures to be included：
According to the second preset requirement, by ODUflex Frames or ODUk Frames, map to
In defeated passage.
10. method as claimed in claim 9, it is characterised in that the Cross module is by after the mapping of mixed service receiver module
ODUflex Frames or ODUk Frames cross scheduling include to corresponding optical transfer network interface module：
ODUflex Frames or ODUk Frames in device internal transmission passage is dispatched to corresponding by the Cross module
Optical transfer network interface module.
A kind of 11. packet switches and the mixing sending method of optical transport network service, it is characterised in that include：
Light transmission interface module is mapped as the optical transport network service data of reception without fixed rate Optical Channel Data Unit-k
ODUflex Frames or Optical Channel Data Unit-k ODUk Frames；
Cross module light is transmitted ODUflex Frames or ODUk Frames after interface module mapping and is dispatched to mixed service
Sending module；
The ODUflex Frames demapping that cross unit scheduling comes is packet switching service data by mixed service sending module,
Or the ODUk Frames demapping for carrying out cross unit scheduling is optical transport network service data, and send the packet after demapping
Exchange business or optical transport network service.
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| EP2963865B1 (en) | 2013-03-15 | 2017-08-09 | Huawei Technologies Co., Ltd. | Optical channel data unit (odu) service transferring device and method |
| CN103918231B (en) | 2013-03-15 | 2016-10-05 | 华为技术有限公司 | A kind of apparatus and method of Optical Channel Data Unit-k operation exchange |
| CN105323137B (en) * | 2014-07-31 | 2019-11-29 | 南京中兴新软件有限责任公司 | Service data transmission method and device |
| CN104869481A (en) * | 2015-05-13 | 2015-08-26 | 北京中经赛博科技有限公司 | DCN implementation mode for OTN equipment |
| CN107872333B (en) * | 2016-09-23 | 2020-12-04 | 中兴通讯股份有限公司 | Processing method, device and system for transmitting multi-protocol packet segment layer TMS |
| CN107171720A (en) * | 2017-05-27 | 2017-09-15 | 烽火通信科技股份有限公司 | The Packet Service alarm alignment system and method for a kind of POTN equipment |
| CN110365606A (en) * | 2018-04-09 | 2019-10-22 | 中兴通讯股份有限公司 | Data service handling method, device, optical transmission device and storage medium |
| CN110995563B (en) * | 2019-12-23 | 2021-11-23 | 安徽皖通邮电股份有限公司 | Method for transmitting OTN message by using packet network |
| CN113395613B (en) * | 2020-03-11 | 2022-08-19 | 华为技术有限公司 | Method, device and system for carrying service |
| CN111683306B (en) * | 2020-05-20 | 2022-04-29 | 烽火通信科技股份有限公司 | Multi-service hybrid access method and device |
| CN115484519B (en) * | 2022-09-14 | 2023-04-18 | 广东九博科技股份有限公司 | Grouping enhancement mode OTN equipment |
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