The device of configuration ethernet business, method and management entity in EPON
Technical field
The present invention relates to the technology of middle configuration service of EPON (PON, passive optical network) and/or equipment, particularly the device of configuration ethernet business, method and management entity in PON.
Background technology
Present broadband access technology is mainly divided into copper wire access technology and light access technology, and the Access Network of being realized by the light access technology is called optical access network (OAN, optical access network).PON is the light access technology that a kind of point-to-multipoint transmits, the schematic network structure of PON as shown in Figure 1, PON is by optical line terminal (OLT, optical line terminator), light distributed network (ODN, opticaldistribute network) and optical network unit (ONU, optical network unit) form.Wherein, in Fig. 1, ONU is expressed as Optical Network Terminal (ONT, optical network termination).
Wherein, OLT connects one or more ODN for OAN provides network side interface (SNI); ODN is the passive optical splitters part, and the data that OLT is descending are transferred to each ONU along separate routes by light, and same, ODN is transferred to OLT with the upstream data of ONU by the ethod of remittance; ONU provides user side interface (UNI) for OAN, link to each other with ODN simultaneously, if ONU provides User Port Function simultaneously, provide ethernet user's port or landline phone service (POTS as ONU, plain oldtelephone service) user port, then be called ONT, in full ONU and ONT unification be ONT.
In PON, the downlink traffic of OLT is broadcast to ONT by the mode of Time Division Multiplexing, and each ONT receives the flow that needs as required; The uplink traffic of ONT is by the control of OLT, and synchronization only allows specific ONT transmission data, and the mode by time division multiple access (TDMA) is transferred to OLT.
Fig. 2 is the structural representation of the ONT of prior art support Ethernet service, and as shown in the figure: this ONT comprises ethernet module, at least one business module and PON protocol process module based on Ethernet.
Wherein, the PON protocol process module is finished PON standard agreement related work, and the configuration information that for example receives OLT is configured, reports the state of ONT or alarm, the uplink message of receiving from ethernet module is added PON agreement frame head, passes to ethernet module after downlink frame is removed the nose heave new assembling of PON protocol frame ONT;
Ethernet module is finished and related works such as ethernet frame processing, maintenance, management, for example carries out interpolation Virtual Local Area Network tag operational, message is carried out based on VLAN label or medium access control (MAC) address filtering etc.
Finish relevant function such as himself Business Processing, maintenance and management based on the business module of Ethernet, for example based on the functions such as recovery of the TDM business module clock of Ethernet.
Business module based on Ethernet provides User Network Interface (UNI) on the one hand, and the inside UNI that provides by ethernet module links to each other with ethernet module on the other hand.
In ONT, certain port of ethernet module can only provide Ethernet service, and the business based on Ethernet is not provided, and at this moment, inner UNI just becomes the UNI of ONT.
ONT based on Ethernet service can support the multiple business function on the Ethernet that is carried on, and for example can support based on the TDM business of Ethernet or Internet protocol (IP) routing service etc.
International Telecommunications Union (ITU-T) has defined G.983.x series standard and gigabit passive optical network (Giga-bit Passive Optical Network) technology series standard G.984.x of broadband passive optical network (BPON, BroadbandPassive Optical Network) technology.In BPON or GPON, defined the mode of OLT configuration and management ONT, OLT manages control interface (OMCI) passage by ONT ONT is managed and disposes, OMCI is a kind of configuration transmission channel among BPON or the GPON, is based upon between OLT and the ONT, is being set up when OLT registers by ONT, OMCI adopts the master-slave mode management agreement, OLT is a main equipment, and ONT is a slave unit, and OLT connects a plurality of ONT in ground by the control of OMCI passage.
OMCI is management information bank (MIB) independently with the various data abstractions of OLT management and configuration ONT, and the elementary cell of MIB is management entity (ME).In BPON or GPON, defined the multiple ME of OLT by OMCI control ONT.ONT realizes the configuration and administration feature of each ME under the control of OLT, the purpose of OMCI is exactly to be used for allowing to provide modularization and extendible ability to satisfy the needs of different ONT controls and management.
Fig. 3 adopts the device schematic diagram of ME configuration ethernet business for prior art, as shown in the figure: the ethernet module at ONT is provided with MAC bridge port configuration data ME, interconnected Ethernet stream destination node ME and pseudo-line destination node ME are set in the business module based on Ethernet, and this puppet line destination node ME also is connected with MAC bridge port configuration data ME.
Wherein, MAC bridge port configuration data ME is used to dispose some configuration datas relevant with the MAC bridge port, as the parameters such as priority, port path value and destination node pointer of port; Pseudo-line destination node ME has defined the configuration data that transmits the TDM business by the packet mode, and these configuration datas comprise whether being structurized type of service attribute, signaling bear mode etc.; Ethernet stream destination node ME is used for the configuration termination and initiates the necessary parameter of ethernet data frame, adds the strategy of virtual local area network (VLAN) label etc. as the MAC Address of ONT, remote mac address, to uplink frame.
As can be seen from Figure 3, MAC bridge port configuration data ME in ethernet module directly be connected based on the pseudo-line destination node ME in the business module of Ethernet, because MAC bridge port configuration data ME can only finish the relevant data of configuration MAC bridge port, parameters such as priority, port path value or destination node pointer as port, and can't dispose the loopback detection function, promptly can't detect the channel failure of inner UNI by loopback, this loopback detection function need be disposed by the destination node of certain class business.In Fig. 3, the loopback detection function is not defined among the MAC bridge port configuration data ME, when the Ethernet service module directly provides the Ethernet physical interface, by the ethernet user network interface physical pathway termination (UNI related with MAC bridge port configuration data ME, Physical Path Termination PointEthernet) ME provides the loopback detection function, but do not possess in Fig. 3, so device shown in Figure 3 can't carry out the loopback fault detect.
It can also be seen that from Fig. 3, Ethernet stream destination node ME has defined some configuration attributes that configuration is handled Ethernet data, but because ether stream destination node ME is directly related with pseudo-line destination node ME, and with MAC bridge port data M E onrelevant, ME that promptly should the configuration ethernet data attribute has been placed in the business module based on Ethernet, and do not have related with ethernet module, violated the principle of modularized design, the configuration that causes Ethernet service with based on the miscellaneous service of Ethernet or/and the equipment disposition close coupling, be unfavorable for maintenance and the modular arrangements of ONT.
Summary of the invention
In view of this, main purpose of the present invention be to provide a kind of in PON the device and the management entity of configuration ethernet business, this device and management entity reduce the configuration of Ethernet service and based on the miscellaneous service of Ethernet and/or the coupling of equipment disposition, help maintenance and the modular arrangements of ONT.
The present invention also provide a kind of in PON the method for configuration ethernet business, this method reduce the configuration of Ethernet service with based on the miscellaneous service of Ethernet and/or the coupling of equipment disposition, help maintenance and the modular arrangements of ONT.
According to above-mentioned purpose, technical scheme of the present invention is achieved in that
A kind of in passive optical network PON the device of configuration ethernet business, comprise the PON protocol process module, ethernet module and at least one the business module that link to each other successively based on Ethernet, it is characterized in that, in ethernet module, comprise inter-related medium access control MAC bridge port configuration data management entity ME and Ethernet service destination node ME, comprise also that in based on the business module of Ethernet the professional destination node ME of at least one non-Ethernet is associated with Ethernet service destination node ME.
Described MAC bridge port configuration data ME is used to dispose the MAC bridge port;
Described Ethernet service destination node ME is used for termination or initiates the needed attribute configuration of Ethernet service;
The professional destination node ME of described non-Ethernet is used for the attribute configuration based on the business of Ethernet.
The professional destination node ME of described non-Ethernet is associated by explicit way or implicit expression mode with Ethernet service destination node ME.
Described explicit way is that Ethernet service destination node ME arrives Ethernet service function destination node ME by pointed associated non-Ethernet business function destination node ME or the professional destination node ME of non-Ethernet by pointer association.
Ethernet service function destination node ME and non-Ethernet business function destination node ME's is related in order to make by identical ME sign for described implicit expression mode.
Described Ethernet service function destination node ME also comprises Ethernet service loop-back configuration attribute, be used to be provided with internal user network interface UNI the loopback fault detect or and MAC bridge port configuration data ME between the loopback fault detect.
Described non-Ethernet business function destination node ME is the professional destination node ME of time-division multiplexing multiple access TDM, pseudo-line destination node ME or MoCA destination node ME.
A kind of in PON the method for configuration ethernet business, this method comprises:
A, Ethernet service destination node ME and MAC bridge port configuration data ME are set in the ethernet module of optical line terminal ONT, at least one non-Ethernet business function destination node ME is set in the business module based on Ethernet of ONT, and the MAC bridge port configuration data ME of setting is related with Ethernet service destination node ME, Ethernet service destination node ME and non-Ethernet business function destination node ME are associated;
B, Ethernet service destination node ME carry out the Ethernet service termination of ONT or initiate relevant attribute configuration, non-Ethernet business function destination node ME carries out the attribute configuration based on the business of Ethernet of ONT, and MAC bridge port configuration data ME carries out the attribute configuration of the MAC bridge port of ONT.
This method also comprises:
C, the data bit flow that comes based on the business module of Ethernet send among the PON after Ethernet service function destination node ME place is configured to Ethernet data; Obtain data in Ethernet service function destination node ME parsing in the Ethernet data that ethernet module receives and form data bit flow from PON, send to business module based on Ethernet.
The professional destination node ME of described non-Ethernet is associated by explicit way or implicit expression mode with Ethernet service destination node ME.
This method also comprises:
Described Ethernet service function destination node ME also is provided with Ethernet service loop-back configuration attribute, this attribute be provided with internal user network interface UNI the loopback fault detect or and the MAC bridge port between the loopback fault detect.
Described non-Ethernet business function destination node ME is the professional destination node ME of TDM, pseudo-line destination node ME or MoCA destination node ME.
A kind of in PON the management entity of configuration ethernet business, this management entity is associated with MAC bridge port configuration data ME and non-Ethernet service node ME respectively, is used for the configuration ethernet service attribute or carries out the loopback fault detect.
This management entity is arranged in the ethernet module among the ONT.
Described Ethernet service destination node ME is associated by explicit way or implicit expression mode with the professional destination node ME of non-Ethernet.
Describedly carry out the loopback fault detect for Ethernet service loop-back configuration attribute is set, this attribute be provided with internal user network interface UNI the loopback fault detect or and the MAC bridge port between the loopback fault detect.
From such scheme as can be seen, the present invention will be used for finishing the Ethernet service termination or the Ethernet service destination node ME of the attribute configuration initiated has been arranged on the ethernet module of ONT, promptly be arranged on MAC bridge port configuration data ME and based between the non-Ethernet business function destination node ME in the business module of Ethernet, thereby make ethernet module finish the attribute configuration of all Ethernet services by Ethernet service destination node ME, make the attribute configuration of finishing every other business based on Ethernet based on the business module of Ethernet by non-Ethernet business function destination node ME.Therefore, the configuration that device provided by the invention, method and management entity have reduced Ethernet service with based on the miscellaneous service of Ethernet or/and the coupling of equipment disposition, help maintenance and the modular arrangements of ONT.Further, because Ethernet service destination node ME is arranged on MAC bridge port configuration data ME and based between the non-Ethernet business function destination node ME in the business module of Ethernet, can Ethernet Loopback configuration be set at Ethernet service destination node ME, thus realize UNI the loopback fault detect and with the loopback fault detect of MAC bridge port.
Description of drawings
Fig. 1 is the schematic network structure of PON;
Fig. 2 supports the structural representation of the ONT of Ethernet service for prior art;
Fig. 3 adopts the device schematic diagram of ME configuration ethernet business for prior art;
Fig. 4 is the device schematic diagram of the present invention's configuration ethernet business in PON;
Fig. 5 is the method flow diagram of the present invention's configuration ethernet business in PON;
Fig. 6 is the professional specific embodiment schematic diagram of the present invention's configuration ethernet in PON.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer,, the present invention is described in more detail below in conjunction with specific embodiment and accompanying drawing.
As can be seen from Figure 2, the physical structure of ONT is actually modular, promptly be used for the ethernet module of Ethernet service configuration and be used for based on the business of Ethernet or/and the business module based on Ethernet of equipment disposition is separated, but, the Ethernet service destination node ME that really will be used for Ethernet service configuration in the prior art has been arranged on the business module based on Ethernet, thereby does not realize the modularized design of ONT.Therefore, device and method provided by the invention will be used as the equipment that provides a kind of business based on the business module of Ethernet and design, making business module and ethernet module based on Ethernet only is the relation of loose coupling before, thereby the configuration that reduces Ethernet service with based on the miscellaneous service of Ethernet or/and the coupling of equipment disposition, help maintenance and the modular arrangements of ONT.
Fig. 4 is the device schematic diagram of the present invention's configuration ethernet business in PON, and as shown in the figure: this device comprises the PON protocol process module, ethernet module and at least one business module based on Ethernet that are connected successively for ONT.Wherein, ethernet module and at least one be based on being connected by inner UNI between the business module of Ethernet, is connected with outside user terminal by UNI based on the business module of Ethernet.
In the present invention, MAC bridge port configuration data ME and Ethernet service destination node ME are set in ethernet module, these two ME interconnect, at least one non-Ethernet business function destination node ME is set in the business module based on Ethernet, and non-Ethernet business function destination node ME is connected with Ethernet service destination node ME in the Ethernet service module.
The function class of Ethernet service destination node ME is similar to ethernet user's network interface physical pathway destination node ME, this ethernet user's network interface physical pathway destination node ME is the existing business module of the UNI connection of an inside based on Ethernet that be used to provide, therefore, Ethernet service destination node ME also can be used as the UNI that provides inner and connect business module based on Ethernet.Ethernet service destination node ME by explicit or implicit expression mode with carry out related based on the non-Ethernet business function destination node ME in the business module of Ethernet, wherein, explicit association be by the associated non-Ethernet business function destination node ME of pointed or based on the non-Ethernet business function destination node ME in the business module of Ethernet by pointed Ethernet service function destination node ME; The implicit expression association is meant that the sign by non-Ethernet business function destination node ME is associated with non-Ethernet business function destination node ME, if the example of two ME of the identical expression of the sign of the application example of two ME is associated.
In the present invention, non-Ethernet business function destination node ME can be the professional destination node ME of TDM.
Ethernet service destination node ME not only is used for the configuration termination and initiates the necessary parameter of ethernet data frame, add the strategy of VLAN label etc. as the MAC Address of ONT, remote mac address, to uplink frame, can also be used to dispose the loopback detection function, carry out inner UNI the loopback detection fault and and the MAC bridge port between the loopback fault detect.
The explanation of giving one example.
Ethernet service destination node ME is for connecting ethernet module and based on the ME of the business module of Ethernet, in Ethernet service destination node ME, on the up direction, the data bit flow next based on the business module of Ethernet sends after this ME place is configured to Ethernet data; On the down direction,, from Ethernet data, resolve and obtain data and form data bit flow and send to business module based on Ethernet at Ethernet service destination node ME place.
Ethernet service destination node ME can have a plurality of application examples, and each application example can be under the request of OLT be provided with by ONT, mutually during the transmission data, an application example just can be set between based on the business module of Ethernet and ethernet module.
Each application example for Ethernet service destination node ME can identify with attribute.Attribute comprises:
Management entity sign, this attribute is the unique identification of each application example, this attribute takies 2 bytes, is provided with when application example is set, and can only read.
The interconnected pointer of destination node, this attribute provides the application example of a pointed based on the non-Ethernet business function destination node ME in the business module of Ethernet, this non-Ethernet business function destination node ME can be pseudo-line destination node ME or MoCA destination node ME, this attribute takies 2 bytes, readable writing is set when application example is set.
Ethernet service loop-back configuration, this attribute are used to be provided with the loopback detection function of Ethernet service, and during pseudo-0x00 on duty, loopback detection is not carried out in expression; On duty when being 0x01, expression is toward the down direction loopback, promptly from receive data bit flow based on the non-Ethernet business function destination node ME in the business module of Ethernet after, be looped back to again, carry out the loopback fault detect of UNI side based on the non-Ethernet business function destination node ME place in the business module of Ethernet; On duty when being 0x02, expression up direction loopback promptly is looped back to the MAC bridge port to the Ethernet data that receives from the MAC bridge port again, carry out and MAC bridge port configuration data ME between the loopback fault detect.This attribute takies a byte, readable writing is set when application example is set.
Certainly, in Ethernet service destination node ME, other attributes can also be set as required or above-mentioned attribute is added or deletes.
In the present invention, Ethernet service destination node ME is newly-installed, and it is associated with MAC bridge port configuration data ME and non-Ethernet service node ME respectively.
Fig. 5 is the method flow diagram of the present invention's configuration ethernet business in PON, and its concrete steps are:
Step 500, Ethernet service destination node ME and MAC bridge port configuration data ME are set in the ethernet module of ONT, non-Ethernet business function destination node ME is set in the business module based on Ethernet of ONU, and the MAC bridge port configuration data ME of setting is related with Ethernet service destination node ME, Ethernet service destination node ME and non-Ethernet business function destination node ME are associated.
The attribute configuration of the termination of step 501, ONT and initiation Ethernet service is finished by Ethernet service destination node ME, ONT based on the termination of the business of Ethernet and initiate attribute configuration and finish by non-Ethernet business function destination node ME, the attribute configuration of the MAC bridge port of ONT is finished by MAC bridge port configuration data ME.
Lift a specific embodiment explanation the present invention, as shown in Figure 6, suppose that non-Ethernet business function destination node ME is pseudo-line destination node ME, then illustrate by the pseudo-line service of modular design realization based on Ethernet service in conjunction with pseudo-line service.Ethernet service destination node ME terminates, and all are relevant with Ethernet service, for other business functions provide adaptive configuration attribute, comprise interconnected pointer of destination node and Ethernet Loopback configuration attribute etc.Pseudo-line destination node ME directly is associated with Ethernet service destination node ME.In the prior art among the Ethernet stream destination node ME configuration attribute can finish by Ethernet service destination node ME.In this way, all configuration attributes relevant with Ethernet service are all finished in ethernet module inside, and all configuration attributes relevant with pseudo-line service are all finished in the pseudo-wire module based on Ethernet.Simultaneously, the loop-back configuration attribute that provides of the Ethernet service destination node ME in ethernet module can carry out fault detect and maintenance to the ethernet module on the ONT with based on the business module of the pseudo-wire module of Ethernet.
Along with technical development, when the relevant configuration attribute of the newly-increased Ethernet service of needs, only need in Ethernet service destination node ME, increase this attribute or increase ME and a newly-increased ME and the ME in the ethernet module that describes this attribute again, as Ethernet service destination node ME, MAC bridge port configuration data ME association; When need be for newly-increased business configuration attribute based on Ethernet, only need based on the newly-increased configuration attribute of the non-Ethernet business function destination node ME in the business module of Ethernet or increase the ME that describes newly-increased configuration attribute and newly-increased ME with based on the ME in the Ethernet service module, as non-Ethernet business function destination node ME association.Like this, just embodied the basic design principles of OMCI in BPON and the GPON system, i.e. " purpose of OMCI definition be used for modular, extendible ability satisfy the demand of different levels ".Therefore, method provided by the invention can reduce the cost of PON, improves operability and maintainability.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.