CN101141350A - Apparatus and method for processing ethernet service in synchronous digital transmission network - Google Patents
Apparatus and method for processing ethernet service in synchronous digital transmission network Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1605—Fixed allocated frame structures
- H04J3/1611—Synchronous digital hierarchy [SDH] or SONET
- H04J3/1617—Synchronous digital hierarchy [SDH] or SONET carrying packets or ATM cells
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
- H04J2203/0073—Services, e.g. multimedia, GOS, QOS
- H04J2203/0082—Interaction of SDH with non-ATM protocols
- H04J2203/0085—Support of Ethernet
Abstract
The utility model discloses a device and a method used to process the Ethernet services in the synchronized digital transportation network, so as to make a difference between the services with various flow. Thus, the treatment efficiency can be improved. The device comprises a Ethernet service treatment unit, a SDH cluster processing unit and a cross joint processing unit, among which the Ethernet service treatment unit is used to conduct PHY level and MAC level processing as well as encoding or package processing and then mapping; The SDH cluster processing unit is used to process the data from the cross joint unit and then delivered to the SDH network; the cross joint processing unit is used to complete the circuit switching between the Ethernet service treatment unit and the SDH cluster processing unit data. The utility model can make a difference between 10 G Ethernet service and 10/100/1000M Ethernet service, so as to improve the treatment efficiency.
Description
Technical field
The present invention relates to Ethernet service, relate in particular to a kind of apparatus and method of in synchronous digital transmission network, handling Ethernet service.
Background technology
In recent years, along with developing rapidly of data service, the metropolitan area transmits the key that net has become telecom operators developing user market and strengthened professional providing capability.Simultaneously, speech and TDM (Time DivisionMultiplexing, time division multiplexing) private line service is still the main source of operator's income, so how to provide the transmission of data service and the demand that processing capacity is market development when guaranteeing the professional transmission of TDM.So, with SDH (Synchronous Digital Hierarchy, synchronous digital hierarchy) is that basic MSTP (Multi-Service Transport Platform, multiservice transport platform) technology is arisen at the historic moment, and become a mainstream solution of metropolitan area optical transfer network.EOS (Ethernet OverSDH is based on the Ethernet of transmission network) technology is one of them developing direction.
The communication industry standard YD/T5119-2005 of the People's Republic of China (PRC) propose based on the MSTP functional mode block diagram of SDH as shown in Figure 1, multiple business respectively from different paths to the SDH looped network---PDH (PDH (Pseudo-synchronous Digital Hierarchy)) professional by the PDH interface mappings to VC (virtual container); ATM (asynchronous transfer mode) is through being mapped into the VC container after atm interface and the processing of ATM layer; Ethernet service can or lead directly to by two layers of exchange and pass through processing of RPR (Resilient Packet Ring) MAC (medium access control) layer or MPLS (multi protocol label exchange) processing or straight-through again, select HDLC (High-Level Data Link Control)/LAPS (Link Access Procedure)/wherein a kind of encapsulation format of GFP (Generic Framing Procedure) to encapsulate then, be mapped into the VC container at last; Miscellaneous service is mapped into after the VC container, and SDH equipment just can send to all VC containers on the SDH network from STM-N (synchronous transfer mode grade N) interface after handling by interconnection, section overhead.Also can handle, receive all kinds business from the SDH network according to rightabout.The model that this shows EOS (wherein path of handling Ethernet service) as shown in Figure 2, Ethernet service can be by two layers of exchange or straight-through, encapsulate through wherein a kind of encapsulation format of HDLC/LAPS/GFP then, be mapped into the VC container, then handle, send on the SDH network from the STM-N mouth at last by interconnection, section overhead.Also can handle, receive Ethernet service from the SDH network according to rightabout.In general, this structure also relatively rationally, is not moved comparatively steady when the Ethernet service amount is not very big yet.But continuous development along with ethernet technology and application, especially after the 10G Ethernet service having occurred, if continue to continue to use existing this structure, so a large amount of expenses, encapsulation process, to waste a lot of bandwidth, efficient step-down, buffer memory increase, time delay increases.Therefore very be necessary to adopt new processing method at the 10G Ethernet service.
Summary of the invention
Technical problem to be solved by this invention is to be to provide a kind of apparatus and method of handling Ethernet service in synchronous digital transmission network, treats the business of different flow with a certain discrimination, improves treatment effeciency.
In order to solve the problems of the technologies described above, the present invention at first provides a kind of device of handling Ethernet service, comprises Ethernet service processing unit, synchronous digital hierarchy group road processing unit and interconnection processing unit, wherein:
Described Ethernet service processing unit is handled in order to Ethernet service is carried out physical layer process and media access control layer, and after encoding process or the encapsulation process, again the data that obtain is shone upon processing; Perhaps the data that receive from described cross-connection unit are separated mapping and handle, and after separating encoding process or decapsulation processing, carry out media access control layer again and handle and physical layer process;
Described synchronous digital hierarchy group road processing unit is used for the data of receiving from described cross-connection unit are carried out MSOH processing and RSOH processing, is sent to synchronous digital hierarchy network again; After perhaps the data in the described synchronous digital hierarchy network being carried out RSOH processing and MSOH processing, send into described cross-connection unit;
Described interconnection processing unit is used to finish the circuit switching between described Ethernet service processing unit and the described synchronous digital hierarchy group road processing unit data.
In the said apparatus, described Ethernet service processing unit:
For the 10G Ethernet service, can carry out described coding/separate encoding process; For the 10/100/1000M Ethernet service, can carry out described encapsulation/decapsulation and handle.
Further, described Ethernet service processing unit:
For the 10G Ethernet service, can carry out the 64b/66b encoding process of encoding/separate; For the 10/100/1000M Ethernet service, can carry out High-Level Data Link Control, Link Access Procedure or Generic Framing Procedure encapsulation/decapsulation and handle.
And, described Ethernet service processing unit:
For the 10G Ethernet service, the described data map that obtains can be gone among the virtual container VC-4-64C, and can separate mapping to the data among the virtual container VC-4-64C and handle; For the 10/100/1000M Ethernet service, the described data map that obtains can be gone among virtual container VC12, VC3 or the VC4, and can separate mapping to the data among virtual container VC12, VC3 or the VC4 and handle.
Further, described Ethernet service processing unit:
For the 10G Ethernet service, can use the byte interleaving mode that the described data map that obtains is gone among the described virtual container VC-4-64C; For the 10/100/1000M Ethernet service, can use Virtual Concatenation or automatic link capacity to adjust function the described data map that obtains is gone among described virtual container VC12, VC3 or the VC4.
In the said apparatus, described Ethernet service processing unit can comprise:
Ethernet interface is used for transmitting described Ethernet service with the local ethernet switching network, and described Ethernet service is carried out described physical layer process and the processing of described media access control layer;
The coding module of encoding/separate is used for the 10G Ethernet service encoding process of encoding/separate;
The encapsulation/decapsulation module is used for that the 10/100/1000M Ethernet service is carried out encapsulation/decapsulation and handles;
VC-4-64C shines upon/separates mapping block, is used for the 10G Ethernet service is mapped to virtual container VC-4-64C, perhaps the 10G Ethernet service among the virtual container VC-4-64C is separated mapping;
VC shines upon/separates mapping block, is used for the 10/100/1000M Ethernet service is mapped to virtual container VC12, VC3 or VC4, perhaps the 10/100/1000M Ethernet service among virtual container VC12, VC3 or the VC4 is separated mapping.
Further, described Ethernet service processing unit may further include:
Layer 2 switching module is used for that the Ethernet service that has carried out described media access control layer processing is carried out two layers of exchange and handles.
In the said apparatus, described interconnection processing unit:
For the 10G Ethernet service, can carry out described circuit switching to described data according to an integral body.
In the said apparatus, described synchronous digital hierarchy group road processing unit:
For the 10G Ethernet service, can be by synchronous transfer mode class 64 interfaces and described synchronous digital hierarchy network transmission data; For the 10/100/1000M Ethernet service, can be by synchronous transfer mode grade N interface and described synchronous digital hierarchy network transmission data.
In the said apparatus, described synchronous digital hierarchy group road processing unit can comprise:
The MSOH processing module is used for that data are carried out MSOH and handles;
The RSOH processing module links to each other with described MSOH processing module, is used for that data are carried out RSOH and handles;
Synchronous transfer mode class 64 interfaces are used for the data that described RSOH processing module and described synchronous digital hierarchy network are transmitted the 10G Ethernet service;
Synchronous transfer mode grade N interface is used for the data that described RSOH processing module and described synchronous digital hierarchy network are transmitted the 10/100/1000M Ethernet service.
The present invention and then a kind of method of handling Ethernet service is provided comprises that forward handles and reverse process, and wherein, described forward is handled and comprised:
(1) Ethernet service is carried out physical layer process and media access control layer processing;
(2) Ethernet service after described physical layer process and the media access control layer processing is carried out encoding process or encapsulation process;
(3) data after described encoding process or the encapsulation process are shone upon processing;
(4) data after the described mapping processing are carried out circuit switching;
(5) data after the described circuit switching are carried out MSOH processing and RSOH processing, be sent to synchronous digital hierarchy network;
Described reverse process comprises:
(a) data in the synchronous digital hierarchy network are carried out RSOH processing and MSOH processing;
(b) data after described MSOH processing and the RSOH processing are carried out circuit switching;
(c) data after the described circuit switching being separated mapping handles;
(d) described data of separating after mapping is handled are separated encoding process or decapsulation processing;
(e) described data of separating after encoding process or decapsulation are handled are carried out media access control layer and handle and physical layer process, be sent to the local ethernet switching network.
In the said method,, described encoding process can be carried out in the step (2), the described encoding process of separating can be carried out in the step (d) for the 10G Ethernet service; For the 10/100/1000M Ethernet service, can carry out described encapsulation process in the step (2), can carry out described decapsulation in the step (d) and handle.
Further,, can carry out the 64b/66b encoding process in the step (2), can carry out 64b/66b in the step (d) and separate encoding process for the 10G Ethernet service; For the 10/100/1000M Ethernet service, can carry out High-Level Data Link Control, Link Access Procedure or Generic Framing Procedure encapsulation process in the step (2), can carry out High-Level Data Link Control, Link Access Procedure or Generic Framing Procedure decapsulation in the step (d) and handle.
And, for the 10G Ethernet service, the data map after the described encoding process can be gone among the virtual container VC-4-64C in the step (3), can separate mapping to the data after the described circuit switching among the virtual container VC-4-64C in the step (c) and handle; For the 10/100/1000M Ethernet service, data map after the described encoding process can be gone among virtual container VC12, VC3 or the VC4 in the step (3), can separate mapping to the data after the described circuit switching among virtual container VC12, VC3 or the VC4 in the step (c) and handle.
Further, for the 10G Ethernet service, the data map after can using the byte interleaving mode with described encoding process in the step (3) is gone among the described virtual container VC-4-64C; For the 10/100/1000M Ethernet service, can use in the step (3) Virtual Concatenation or automatically link capacity adjust the data map of function after and go among described virtual container VC12, VC3 or the VC4 described encoding process.
Said method step (1) may further include, and the Ethernet service after described media access control layer is handled carries out two layers of exchange to be handled.
In the said method, for the 10G Ethernet service, the data after can handling mapping described in the step (4) according to an integral body, and MSOH described in the step (b) is handled and the RSOH processing after data, carry out described circuit switching.
In the said method, for the 10G Ethernet service, can be by synchronous transfer mode class 64 interfaces and described synchronous digital hierarchy network transmission data; For the 10/100/1000M Ethernet service, can be by synchronous transfer mode grade N interface and described synchronous digital hierarchy network transmission data.
Compared with prior art, apparatus of the present invention and method can be treated 10G Ethernet service and 10/100/1000M Ethernet service with a certain discrimination, reduce time delay, improved treatment effeciency, but also can realize 10G Ethernet service and the intercommunication of 10/100/1000M Ethernet service.
Description of drawings
Fig. 1 is based on the MSTP nodal function block diagram of SDH in the prior art.
Fig. 2 is an EOS device functional models block diagram in the prior art.
Fig. 3 is apparatus of the present invention example structure schematic diagram.
Fig. 4 is the structural representation of Ethernet service processing unit among apparatus of the present invention embodiment.
Fig. 5 is the structural representation of SDH group road processing unit among apparatus of the present invention embodiment.
Fig. 6 is the structural representation of apparatus of the present invention Application Example.
Fig. 7 is the another kind of structural representations of forming of apparatus of the present invention.
Fig. 8 is the treatment step schematic diagram that the present invention sends into the 10G Ethernet service on the SDH network.
Fig. 9 is the present invention receives the 10G Ethernet service from the SDH network a treatment step schematic diagram.
Figure 10 is the treatment step schematic diagram that the present invention sends into the 10/100/1000M Ethernet service on the SDH network.
Figure 11 is the present invention receives the 10/100/1000M Ethernet service from the SDH network a treatment step schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and the present invention is described in further detail.
Divide according to flow, Ethernet mainly is divided into 10M, 100M, 1000M and 10G Ethernet service.Purpose of the present invention is exactly for a kind of apparatus and method of handling Ethernet service on EOS equipment are provided, these apparatus and method are particularly suitable for handling the 10G Ethernet service, to overcome shortcomings such as the inefficiency that continue to adopt present framework to handle the 10G Ethernet to bring, caching delay increase.
The present invention mainly is the characteristics according to 10G Ethernet self, has proposed a kind of new EOS framework, can not only handle the 10G Ethernet service, also can handle 10M, 100M and 1000M Ethernet service simultaneously.From the modularization angle, apparatus of the present invention can be divided into three kinds of processing units as shown in Figure 3, comprise Ethernet service processing unit 301, interconnection processing unit 302 and SDH group road processing unit 303, wherein:
Ethernet service processing unit 301, main responsible signal with Ethernet service carries out after processing of Ethernet PHY (physics) layer and the processing of ethernet mac layer, by different mapping path, be mapped among the VC (virtual container) of SDH, particularly, difference according to the Ethernet service flow, treat with a certain discrimination: if 10GE just carries out the 64b/66b coding, be mapped into then in the VC-4-64C container, if 10/100/1000M Ethernet service, just select the wherein a kind of form among the GFP/HDLC/LAPS to encapsulate, be mapped into VC12 after the encapsulation, among VC3 or the VC4; Signal after will shining upon by backboard then is sent to interconnection processing unit 302; Perhaps handle in the other direction, to the business that receives, according to different paths, separate after the mapping, carry out decapsulation or separate coding, particularly, distinguishing payload content according to path overhead is 10GE business or 10M/100M/1000M business, if just carrying out VC-4-64C, the 10GE business separates mapping, carry out 64b/66b afterwards and separate coding, if the 10M/100M/1000M Ethernet service is just separated mapping, decapsulation is then carried out the processing of MAC layer to the business of separating coding or decapsulation at last and the PHY layer is handled.
SDH group road processing unit 303, main being responsible for carried out the processing of SDH section overhead with the signal that interconnection processing unit 302 is sent here, comprises that MSOH is handled and RSOH is handled, and is sent to then in the SDH network; Perhaps handle in the other direction, receive the business in the SDH network, it is carried out regenerator section and MSOH processing, send into cross-connection unit 302 then.
Fig. 4 shows a kind of concrete structure of Ethernet service processing unit 301, its functional node that comprises has Ethernet interface 411, VC-4-64C shines upon/separates mapping block 412, layer 2 switching module 413, encapsulation/decapsulation/decapsulation module 414 and VC shine upon/separate mapping block 415, VC-4-64C wherein shines upon/separates mapping block 412 and is used to handle the 10G Ethernet service, encapsulation/decapsulation module 414 and VC shine upon/separate mapping block 415 and be mainly used in processing 10M, 100M and 1000M Ethernet service, layer 2 switching module 413 are mainly used in Ethernet service are carried out two layers of exchange processing.Particularly:
VC-4-64C shines upon/separates mapping block 412, is used to finish the mapping of 10G Ethernet service/separate mapping to handle;
Layer 2 switching module 413 is used for that Ethernet service is carried out two layers of exchange and handles, and realizes the intercommunication of 10/100/1000M Ethernet service and 10G Ethernet service;
The coding module 416 of encoding/separate is used for the 10G Ethernet service encoding process of encoding/separate;
Encapsulation/decapsulation module 414 is used for that the 10M/100/1000M Ethernet service is carried out encapsulation/decapsulation and handles, and the mode of encapsulation process comprises HDLC, LAPS or GFP;
VC shines upon/separates mapping block 415, is used to finish the mapping of data after the encapsulation of 10M, 100M and 1000M Ethernet service/separate mapping.
Fig. 5 shows a kind of concrete structure of SDH group road processing unit 303, and its functional node that comprises has MSOH processing module 531, RSOH processing module 532 and STM-N (synchronous transfer mode grade N) interface 533, wherein:
STM-N interface 533 is used for and will sends to the SDH network through the 10M/100/1000M Ethernet service data that RSOH is handled, and 10M/100/1000M Ethernet service data sends to RSOH processing module 532 on the reception SDH network;
STM-64 interface 534 is used for and will sends to the SDH network through the 10G Ethernet service data that RSOH is handled, and 10G Ethernet service data sends to RSOH processing module 532 on the reception SDH network.
When specific implementation, STM-N interface 533 in the SDH group road processing unit 303 and STM-64 interface 534 can be more than one.
Fig. 6 has provided complete concrete structure signal of apparatus of the present invention, and Ethernet service processing unit 301 wherein and SDH group road processing unit 303 are concrete structure as shown in Figure 4 and Figure 5.The function of each unit or module and effect among Fig. 6, all identical with the unit or the module of same tag among Fig. 3, Fig. 4 and Fig. 5.In the Ethernet service processing unit 301, shine upon/separate mapping block 412 and VC shines upon/separate mapping block 415 processed data stream through VC-4-64C, after the processing of Ethernet service processing unit paranotum interface 601, mail to interconnection processing unit 302 again and exchange processing; Reverse need distinguish by certain path overhead whether payload is the 10G Ethernet service by after the processing of backplane interface 601, if payload is 10GE just to be sent to VC-4-64C and to shine upon/separate mapping block 412, separate mapping block 415 if not just sending into the VC mapping.In the SDH group road processing unit 303, after Ethernet service after 302 exchanges of interconnection processing unit are handled need be handled by the backplane interface 602 of SDH group road processing unit side, mail to MSOH processing module 531, RSOH processing module 532 again, send on the SDH network by the STM-N interface afterwards; Reverse process is, SDH group's processing unit 303 is by the STM-N interface, receive data from the SDH network, pass through the overhead processing of RSOH processing module 532 and MSOH processing module 531 afterwards, send to cross processing unit 302 by backplane interface 602 at last.
According to different backplane interface and system scale, an interconnection processing unit 302 can link to each other with a plurality of Ethernet service processing units 301, a plurality of SDH groups road processing unit 303 simultaneously.Fig. 7 shows 302 whiles and M Ethernet service processing unit of an interconnection processing unit, and N SDH group road processing unit links to each other.Wherein M Ethernet service processing unit identifies to M with 1 respectively, and N SDH group road processing unit identifies to N with 1 respectively.
Fig. 8 shows apparatus of the present invention and how the 10G Ethernet service is sent into processing method on the SDH network, and the forward that is referred to as the 10G Ethernet service is handled, and may further comprise the steps:
Step 801 by the data-signal of Ethernet interface reception 10G Ethernet service, is carried out processing of PHY layer and layer two MAC layer and is handled; Particularly, Ethernet service becomes the receivable signal of ethernet mac layer through Ethernet PHY layer treatment conversion; Ethernet mac layer processing module receives after the signal that Ethernet PHY layer processing module send here, carries out the layer two MAC layer and handles; If have two layers of function of exchange, Ethernet service enters layer 2 switching module and exchanges processing after the layer two MAC layer is handled so;
Handle according to the rightabout of above-mentioned flow process from the 10GE EOS data that the SDH network receives, be referred to as the reverse process of 10G Ethernet service, as shown in Figure 9, may further comprise the steps:
Figure 10 shows apparatus of the present invention and how the 10/100/1000M Ethernet service is sent into processing method on the SDH network, and the forward that is referred to as the 10/100/1000M Ethernet service is handled, and may further comprise the steps:
Handle according to the rightabout of above-mentioned flow process from the 10/100/1000M EOS data that the SDH network receives, be referred to as the reverse process of 10/100/1000M Ethernet service, as shown in figure 11, may further comprise the steps:
Step 1101, SDH group road processing unit carries out regenerator section, MSOH processing to the data of receiving in the SDH network;
Step 1102, SDH group road processing unit is sent data into cross-connection unit by backplane interface, carries out circuit switching according to configuration in cross unit;
Step 1103, the Ethernet service processing unit receives the data that cross-connection unit sends by backplane interface;
Step 1104, Ethernet service processing unit are shone upon/are separated mapping block by VC data are separated mapping, then data are carried out decapsulation;
Step 1105 is carried out processing of layer two MAC layer and the processing of PHY layer to the Ethernet service data after the decapsulation, sends into the local ethernet switching network at last.
Compared with prior art, method of the present invention has been removed Ethernet service access SDH network Must through the restriction of GFP/HDLC/LAPS encapsulation, provide a kind of the 10G Ethernet service has been connect Enter the method for SDH network, make EOS equipment more flexible, 10G Ethernet access efficiency is higher, the time Prolong littler. The problem of having avoided the GFP/HDLC/LAPS encapsulation to cause inefficiency, time delay to increase. This Contrive equipment and method except processing the 10G Ethernet service, are finished possessing Behind the unit of GFP/HDLC/LAPS encapsulation, still can process the 10/100/1000M Ethernet service, And when having two layers of function of exchange, can also realize 10G Ethernet service and 10/100/1000M The intercommunication of Ethernet service.
Claims (18)
1. a device of handling Ethernet service is characterized in that, comprises Ethernet service processing unit, synchronous digital hierarchy group road processing unit and interconnection processing unit, wherein:
Described Ethernet service processing unit is handled in order to Ethernet service is carried out physical layer process and media access control layer, and after encoding process or the encapsulation process, again the data that obtain is shone upon processing; Perhaps the data that receive from described cross-connection unit are separated mapping and handle, and after separating encoding process or decapsulation processing, carry out media access control layer again and handle and physical layer process;
Described synchronous digital hierarchy group road processing unit is used for the data of receiving from described cross-connection unit are carried out MSOH processing and RSOH processing, is sent to synchronous digital hierarchy network again; After perhaps the data in the described synchronous digital hierarchy network being carried out RSOH processing and MSOH processing, send into described cross-connection unit;
Described interconnection processing unit is used to finish the circuit switching between described Ethernet service processing unit and the described synchronous digital hierarchy group road processing unit data.
2. device as claimed in claim 1 is characterized in that, described Ethernet service processing unit:
For the 10G Ethernet service, carry out described coding/separate encoding process;
For the 10/100/1000M Ethernet service, carry out described encapsulation/decapsulation and handle.
3. device as claimed in claim 2 is characterized in that, described Ethernet service processing unit:
For the 10G Ethernet service, carry out the 64b/66b encoding process of encoding/separate;
For the 10/100/1000M Ethernet service, carry out High-Level Data Link Control, Link Access Procedure or Generic Framing Procedure encapsulation/decapsulation and handle.
4. device as claimed in claim 2 is characterized in that, described Ethernet service processing unit:
For the 10G Ethernet service, the described data map that obtains is gone among the virtual container VC-4-64C, and the data among the virtual container VC-4-64C are separated mapping handle;
For the 10/100/1000M Ethernet service, the described data map that obtains is gone among virtual container VC12, VC3 or the VC4, and the data among virtual container VC12, VC3 or the VC4 are separated mapping handle.
5. device as claimed in claim 4 is characterized in that, described Ethernet service processing unit:
For the 10G Ethernet service, use the byte interleaving mode that the described data map that obtains is gone among the described virtual container VC-4-64C;
For the 10/100/1000M Ethernet service, use Virtual Concatenation or automatic link capacity to adjust function the described data map that obtains is gone among described virtual container VC12, VC3 or the VC4.
6. device as claimed in claim 1 is characterized in that, described Ethernet service processing unit comprises:
Ethernet interface is used for transmitting described Ethernet service with the local ethernet switching network, and described Ethernet service is carried out described physical layer process and the processing of described media access control layer;
The coding module of encoding/separate is used for the 10G Ethernet service encoding process of encoding/separate;
The encapsulation/decapsulation module is used for that the 10/100/1000M Ethernet service is carried out encapsulation/decapsulation and handles;
VC-4-64C shines upon/separates mapping block, is used for the 10G Ethernet service is mapped to virtual container VC-4-64C, perhaps the 10G Ethernet service among the virtual container VC-4-64C is separated mapping;
VC shines upon/separates mapping block, is used for the 10/100/1000M Ethernet service is mapped to virtual container VC12, VC3 or VC4, perhaps the 10/100/1000M Ethernet service among virtual container VC12, VC3 or the VC4 is separated mapping.
7. device as claimed in claim 6 is characterized in that, described Ethernet service processing unit further comprises:
Layer 2 switching module is used for that the Ethernet service that has carried out described media access control layer processing is carried out two layers of exchange and handles.
8. device as claimed in claim 1 is characterized in that, described interconnection processing unit:
For the 10G Ethernet service, described data are carried out described circuit switching according to an integral body.
9. device as claimed in claim 1 is characterized in that, described synchronous digital hierarchy group road processing unit:
For the 10G Ethernet service, by synchronous transfer mode class 64 interfaces and described synchronous digital hierarchy network transmission data;
For the 10/100/1000M Ethernet service, by synchronous transfer mode grade N interface and described synchronous digital hierarchy network transmission data.
10. device as claimed in claim 1 is characterized in that, described synchronous digital hierarchy group road processing unit comprises:
The MSOH processing module is used for that data are carried out MSOH and handles;
The RSOH processing module links to each other with described MSOH processing module, is used for that data are carried out RSOH and handles;
Synchronous transfer mode class 64 interfaces are used for the data that described RSOH processing module and described synchronous digital hierarchy network are transmitted the 10G Ethernet service;
Synchronous transfer mode grade N interface is used for the data that described RSOH processing module and described synchronous digital hierarchy network are transmitted the 10/100/1000M Ethernet service.
11. a method of handling Ethernet service comprises forward processing and reverse process, it is characterized in that, wherein, described forward is handled and is comprised:
(1) Ethernet service is carried out physical layer process and media access control layer processing;
(2) Ethernet service after described physical layer process and the media access control layer processing is carried out encoding process or encapsulation process;
(3) data after described encoding process or the encapsulation process are shone upon processing;
(4) data after the described mapping processing are carried out circuit switching;
(5) data after the described circuit switching are carried out MSOH processing and RSOH processing, be sent to synchronous digital hierarchy network;
Described reverse process comprises:
(a) data in the synchronous digital hierarchy network are carried out RSOH processing and MSOH processing;
(b) data after described MSOH processing and the RSOH processing are carried out circuit switching;
(c) data after the described circuit switching being separated mapping handles;
(d) described data of separating after mapping is handled are separated encoding process or decapsulation processing;
(e) described data of separating after encoding process or decapsulation are handled are carried out media access control layer and handle and physical layer process, be sent to the local ethernet switching network.
12. method as claimed in claim 11 is characterized in that:
For the 10G Ethernet service:
Step is carried out described encoding process in (2);
Carry out the described encoding process of separating in the step (d);
For the 10/100/1000M Ethernet service:
Step is carried out described encapsulation process in (2);
Carrying out described decapsulation in the step (d) handles.
13. method as claimed in claim 12 is characterized in that:
For the 10G Ethernet service:
Step is carried out the 64b/66b encoding process in (2);
Carry out 64b/66b in the step (d) and separate encoding process;
For the 10/100/1000M Ethernet service:
Carry out High-Level Data Link Control, Link Access Procedure or Generic Framing Procedure encapsulation process in the step (2);
Carrying out High-Level Data Link Control, Link Access Procedure or Generic Framing Procedure decapsulation in the step (d) handles.
14. method as claimed in claim 12 is characterized in that:
For the 10G Ethernet service:
In the step (3) data map after the described encoding process is gone among the virtual container VC-4-64C;
In the step (c) data after the described circuit switching among the virtual container VC-4-64C being separated mapping handles;
For the 10/100/1000M Ethernet service:
In the step (3) data map after the described encoding process is gone among virtual container VC12, VC3 or the VC4;
In the step (c) data after the described circuit switching among virtual container VC12, VC3 or the VC4 being separated mapping handles.
15. method as claimed in claim 14 is characterized in that:
For the 10G Ethernet service:
Data map after using the byte interleaving mode with described encoding process in the step (3) is gone among the described virtual container VC-4-64C;
For the 10/100/1000M Ethernet service:
Data map after using Virtual Concatenation or automatic link capacity adjustment function with described encoding process in the step (3) is gone among described virtual container VC12, VC3 or the VC4.
16. method as claimed in claim 11 is characterized in that:
Step (1) comprises that further the Ethernet service after described media access control layer is handled carries out two layers of exchange to be handled.
17. method as claimed in claim 11 is characterized in that:
For the 10G Ethernet service, the data after according to an integral body mapping described in the step (4) being handled, and MSOH described in the step (b) is handled and the RSOH processing after data, carry out described circuit switching.
18. method as claimed in claim 11 is characterized in that:
For the 10G Ethernet service, by synchronous transfer mode class 64 interfaces and described synchronous digital hierarchy network transmission data;
For the 10/100/1000M Ethernet service, by synchronous transfer mode grade N interface and described synchronous digital hierarchy network transmission data.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101425278A CN100568842C (en) | 2007-08-15 | 2007-08-15 | A kind of apparatus and method of in synchronous digital transmission network, handling Ethernet service |
| PCT/CN2007/003935 WO2009021376A1 (en) | 2007-08-15 | 2007-12-29 | Ethernet device and ethernet affair processing method based on the sdh |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101425278A CN100568842C (en) | 2007-08-15 | 2007-08-15 | A kind of apparatus and method of in synchronous digital transmission network, handling Ethernet service |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101141350A true CN101141350A (en) | 2008-03-12 |
| CN100568842C CN100568842C (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007101425278A Expired - Fee Related CN100568842C (en) | 2007-08-15 | 2007-08-15 | A kind of apparatus and method of in synchronous digital transmission network, handling Ethernet service |
Country Status (2)
| Country | Link |
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| CN (1) | CN100568842C (en) |
| WO (1) | WO2009021376A1 (en) |
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| CN101557258A (en) * | 2009-02-27 | 2009-10-14 | 工业和信息化部通信计量中心 | Method for using synchronous digital hierarchy (SDH) to realize high-accuracy time synchronization, system and time delay measuring device |
| CN101924960A (en) * | 2009-06-12 | 2010-12-22 | 华为技术有限公司 | Service transport system, equipment and method |
| CN103546320A (en) * | 2013-10-23 | 2014-01-29 | 北京千禧维讯科技有限公司 | Method for butt-joint of cross-linked data of transmission network on basis of SDH |
| CN104811261A (en) * | 2014-01-28 | 2015-07-29 | 中国电信股份有限公司 | Optical transport network device and signal processing method thereof |
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| CN103997384B (en) * | 2014-05-23 | 2017-07-25 | 北京中和卓远科技有限公司 | A kind of test system and method based on synchronous time division technology |
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| CN109254721A (en) * | 2017-07-12 | 2019-01-22 | 中兴通讯股份有限公司 | Flexible Ethernet data cross method, transmitting device and storage medium |
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| CN100388700C (en) * | 2002-10-18 | 2008-05-14 | 华为技术有限公司 | Method for transmitting digital business on synchronous digital network |
| CN100508475C (en) * | 2003-09-29 | 2009-07-01 | 上海贝尔阿尔卡特股份有限公司 | Multi-service transmitting method, node device and multi-service transmitting platform |
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2007
- 2007-08-15 CN CNB2007101425278A patent/CN100568842C/en not_active Expired - Fee Related
- 2007-12-29 WO PCT/CN2007/003935 patent/WO2009021376A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| CN100568842C (en) | 2009-12-09 |
| WO2009021376A1 (en) | 2009-02-19 |
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