CN101753343B - Method, system and device for loading software in optical access system - Google Patents
Method, system and device for loading software in optical access system Download PDFInfo
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Abstract
The embodiment of the invention discloses a method, a system and a device for loading software applied in a point-to-multipoint optical access system. The method comprises the following steps that: an OLT carries out software loading on specific-type target equipment through a multicast channel, and receives a loading failure message reported by the target equipment; and then the OLT carries out multicast retransmission on the target equipment according to the loading failure message. The method improves the efficiency and reliability of software loading. The invention also provides a system and a device for loading the software applied in the optical access system. Through the technical scheme of the invention, the efficiency and reliability of software loading are improved.
Description
Technical field
The present invention relates to communication field, relate in particular to the software loading technology in the multi-plexing light accessing system.
Background technology
In the access network; The attendant is through NMS (Network Management System; NMS) access device is managed, when access device need be upgraded, NMS issued the software loading instruction; The notice access device obtains the needed software of upgrading to file server; Access device receives the instruction back and obtains required software through FTP (File Transfer Protocol, FTP)/TFTP modes such as (Trivial FileProtocol, TFTPs) from file server.
In the light access technology; Optical access device also all is through the NMS management, owing to can have a large amount of OLT (Optical Line Terminal, optical line terminal) in the light access technology; Therefore the access device of a NMS management just increases greatly; With FTTB (Fiber to the Building, FTTB space) networking is example, and networking structure is as shown in Figure 1.
In the FTTB networking, OLT is put into office side's machine room, MDU (Multi-Dwelling Unit; Multitenant unit) equipment generally all directly is deployed to the user building, and the MDU amount of equipment is very huge, and is as shown in Figure 1; A PON (Passive Optical Network, passive optical-fiber network) interface board can have a plurality of PON mouths, and each PON mouth can a large amount of MDU equipment (splitting ratio that depends on optical splitter of following band through optical splitter; Current commonplace be that each optical splitter can be with 64 MDU); Such OLT in theory can below be with several thousand MDU, a NMS manages a large amount of OLT again, so the MDU of NMS management can reach several thousand even up to ten thousand.
When MDU needed the whole network upgrading, if adopt existing upgrading mode, each MDU obtained file from file server successively; Ignore if the update time of MDU is only considered the time other times of file transfer, the concurrency of file server is that M (refers to carry out simultaneously on the file server number of processes of file transfer, concerning same file server; The M number is fixed, and is only relevant with resource with the performance of file server), the number of the MDU that the whole network will be upgraded is N; File from the time that file server is transferred on the MDU be T; So total update time=N*T/M is so when N was very big, whole upgrading will be for a long time consuming time.
In reality operation, operator hopes all that generally the upgrading of network carries out at night, and can accomplish the upgrading to the whole network an evening, but in the existing technical scheme, very low to the device upgrade efficient of multi-plexing light accessing system, can not satisfy the requirement of operator far away.
Summary of the invention
The device that the embodiment of the invention provides a kind of method for loading software, system, file that is applied in a little in the multiple spot multi-plexing light accessing system to send and receive; Adopt the mode of multicast loading and add multicast retransmission; Solve the low problem of destination device software updating efficiency of particular device type in enormous quantities in the multi-plexing light accessing system; Realization has promoted the efficient and the reliability of device upgrade in the multi-plexing light accessing system greatly to rapid, the reliable software loading of the destination device of large batch of particular device type.
Concrete, the embodiment of the invention provides a kind of method for loading software that is applied in the multi-plexing light accessing system, and in multicast channel and the unicast channel set up on the optical line terminal OLT between said OLT and a plurality of destination device, this method comprises:
A), in multicast channel and the unicast channel set up on the optical line terminal OLT between said OLT and a plurality of destination device;
B), utilize multicast channel to send and load initiate notification to destination device; Comprise the frame number that loading device type, software number and software that software was suitable for are split in this loading initiate notification; Destination device carries out type matching based on the device type information that loads in the initiate notification; If load the device type be suitable for and oneself do not match, then reject the multicast message of subsequent load;
C), OLT needs the software of loading to the destination device transmission through multicast channel;
D) if OLT receives the message from the loading failure of destination device through unicast channel, then confirm to load the software of failure, and the software that loads failure is carried out multicast retransmission through multicast channel based on the message that loads failure.
A kind of software loading system that is applied in a little in the multiple spot multi-plexing light accessing system comprises:
Optical line terminal OLT and destination device;
OLT is used for setting up multicast channel and the unicast channel between itself and a plurality of destination device thereon; Send the loading initiate notification by multicast channel; Comprise the frame number that loading device type, software number and software that software was suitable for are split in this loading initiate notification; And send to load software to destination device by multicast channel; And receiving the message that loads failure, root is stated the software that the message that loads failure confirms to load failure, by multicast channel the software that loads failure is carried out multicast retransmission;
Destination device is used for receive loading initiate notification, carries out the device type coupling, if load the device type that is suitable for and oneself do not match, then rejects the multicast message of subsequent load; And be used to receive said software; Integrality to the software that receives is judged, if the frame number of software is discontinuous, then reports the message that loads failure to give OLT through said unicast channel; The numbering of losing software and the numbering of lost frames have been carried in this message; If software loss then reports the message that loads failure to give said OLT through unicast channel, carried the numbering of losing software in the message of said loading failure; And the receiving group re-transmission, based on the numbering of the re-transmission software that receives, judge whether retransmit software is successfully received, if then abandon said re-transmission software.
A kind of software loading apparatus comprises:
Start module, be used for sending the loading initiate notification through multicast channel, wherein, said multicast channel builds on the OLT, is used for said OLT and destination device and communicates;
Load-on module is used for after starting module transmission loading initiate notification, load software being sent to sending module;
Receiver module is used to receive the message that loads failure;
Determination module, the numbering of the software that is used for carrying based on the message that loads failure and the numbering of lost frames confirm to load the software of failure, perhaps confirm to load the software of failing based on the numbering of losing software;
Sending module is used for the load software with the load-on module transmission, initiates software loading through multicast channel to the equipment that needs load software; The software of the loading of determination module transmission being failed through multicast channel carries out multicast retransmission.
A kind of software receiving system comprises:
Receiver module is used for receive loading initiate notification, loads the frame number that comprises in the initiate notification that device type, software number and software that load software is suitable for are split into, and the reception load software;
Analysis module is used for carrying out type matching according to the device type information that loads initiate notification, if load the device type that is suitable for and oneself do not match, then rejects the multicast message of subsequent load;
Feedback module; Be used for the frame number that is split into according to the single load software that the loading initiate notification that receiver module receives carries; Integrality to the load software that receives is judged; If there is the frame losing phenomenon in the software, then report the message that loads failure through unicast channel, carried the numbering of lost frames and the numbering of its affiliated software in the message of this loading failure; The software number that carries in the loading initiate notification that receives according to receiver module is judged the integrality of the software that receives; If there is the software loss phenomenon; Then report the message that loads failure, load in the message of failing and carried the numbering of losing software, wherein through unicast channel; Said unicast channel builds on the OLT, is used for destination device and said OLT communicates.
Through the embodiment of the invention, can realize quick, the reliable software loading from OLT to destination device in enormous quantities in the multi-plexing light accessing system, promoted the efficient and the reliability of device upgrade in the multi-plexing light accessing system.
Description of drawings
Fig. 1 is the sketch map of the software loading under the FTTB networking in the prior art;
Fig. 2 realizes the structural representation of software loading for utilizing multicasting technology in the embodiment of the invention;
Fig. 3 is for carrying out the sketch map of N software loading instance in the embodiment of the invention to the T type equipment;
Fig. 4 is the sketch map of multicast loading sequence in the embodiment of the invention;
Fig. 5 is the structural representation of software loading system in the embodiment of the invention;
Fig. 6 is the structural representation of software loading apparatus in the embodiment of the invention;
Fig. 7 is the structural representation of software receiving system in the embodiment of the invention.
Embodiment
The embodiment of the invention utilizes multicast to load and multicast retransmission; Realize some software loading to the destination device of particular type in the multiple spot multi-plexing light accessing system; Make the destination device of large batch of particular type to accomplish upgrading at short notice rapidly, promoted the efficient of device upgrade in the multi-plexing light accessing system.
First embodiment provided by the invention is a kind of method for loading software that is applied in a little in the multiple spot multi-plexing light accessing system, utilizes multicast mode and adds that certain multicast control protocol realizes that software fast, load reliably.
As shown in Figure 2; Optical line terminal OLT (Optical Line Terminal) promptly needs the loading source of load software, and wherein, the software (generally needing to load a plurality of softwares during the destination device upgrading) that needs to load leaves among the OLT; Like the internal memory among Fig. 2; CPU (Central Processing Unit, central processing unit) by OLT initiates loading command, and needs purpose of upgrading equipment is carried out software loading.
The software that need to load is loaded into the forwarding that destination device need pass through a plurality of forwarding chips from OLT and could arrives, and these forwarding chips mainly contain LSW (LAN Switch, LAN switch) chip and logic chip.Forwarding chip with process in the middle of OLT and the destination device among Fig. 2 has carried out abstract; Be abstracted into a multicast forwarding layer; The multicast forwarding layer comprises several forwarding chips, the duplicating and transmitting of the software that this multicast forwarding layer can be realized need are loaded, and each forwarding chip all comprises a uplink port and several downlink port; Each downlink port both can connect forwarding chip, can connect forwarding chip 2 and forwarding chip 3 like the downlink port of forwarding chip among Fig. 21; Also subordinate equipment can be connected, destination device and optical splitter can be connected like the downlink port of forwarding chip among Fig. 22.
When utilizing multicasting technology to carry out software loading, need OLT and forwarding chip all to support the multicast forwarding function, generally speaking, as long as OLT supports the multicast forwarding function, forwarding chip also is to support the multicast forwarding function so.Under multicast scenarios; On each forwarding chip, dispose multicast forward table; Dispose the multicast forwarding rule in the multicast forward table; The effect of multicast forwarding rule is the downlink port that guarantees can accurately arrive from the multicast message to be transmitted that the forwarding chip up going port comes forwarding chip, and for example 1 of forwarding chip can load message with multicast and transmits with port M to port 3 among Fig. 2.This transmits rule needs OLT before starting software loading, just to be configured in the forwarding chip in advance.This configuration of transmitting rule is identical with the configuration of transmitting rule in the general multicast transmission, repeats no more here.
Simultaneously, when utilizing multicast mode to carry out software loading, need satisfy following two conditions: one side need be split into the software that loads the form of multicast message one by one; On the other hand, divided the multicast message that splits out to encapsulate with specific form, as be packaged into Ethernet message, support the forwarding chip of multicast forwarding to discern and to analyze like this.
Here be packaged into Ethernet message with load software and carry out multicast and be loaded as example, message format is described.
The software that for example has need to load on the OLT; Size is 10,000,000; The maximum length of the Ethernet message that OLT and destination device can be handled is no more than 1500 bytes; Software so to be loaded need be split into 10,000,000/1500 bytes=6991 frames and transmit, and every frame file all need be packaged into the form of Ethernet message.
Ethernet message comprises two parts: Ethernet message head and Ethernet message content, and wherein the form of Ethernet message head is as shown in table 1:
| Purpose MAC | Source MAC | The TAG head | The Ether frame type | Frame (1500) |
Table 1
In the table 1; Purpose MAC (Media Access Control; FDDI sublayer protocol) fill in the multicast MAC that OLT and destination device are appointed, source MAC fills in the MAC Address of OLT oneself, VLAN (the Virtual Local Area Network in TAG (classification) head; VLAN) fills in a M-VLAN; The Ether frame type can define a privately owned frame type, and this privately owned frame type shows it is that multicast loads message, and destination device can be discerned type of message through the Ether frame type.Receive the message of such form when forwarding chip after,, search the multicast forward table that configures and to realize multicast is loaded message forwarding according to multicast MAC and M-VLAN.
Carry concrete multicast in the Ethernet message content and load message, the multicast message that the frame that is split into like above-mentioned software is packaged into.
Multicast loads the quick loading that can accomplish software; But how the software that loads is by correct delivering on the destination device; And the how complete software that receives loading of destination device, multicasting technology has no assurance, if occur the LOF of software in the transmission course; OLT is ignorant, and the software that so just can't guarantee to load is by the complete reception of destination device.Solve top problem, can solve through the method for multicast retransmission.
This process comprises:
1), in multicast channel and the unicast channel set up on the OLT between OLT and a plurality of destination device, OLT notifies the information such as frame number that device type, software number and software that load software was suitable for are split into to destination device through the form of multicast.This notice also will be packaged into the form of Ethernet message; Wherein Ethernet header is identical with the Ethernet header form of table 1, and the Ethernet message content is then carried the content of above-mentioned loading initiate notification, and destination device is to load initiate notification based on the Ether frame type identification; Content based on Ethernet message; Learn that multicast loads the device type that is suitable for, destination device carries out the coupling of device type, loads message if mate then prepare to receive the multicast that loads software;
2), destination device is according to the information in the step 1), in the software loading process, whether destination device is that the multicast of load software loads message through the Ether frame type identification.Then; The frame number information that the destination device of type matching is split into according to the software that carries in the loading initiate notification; Integrality to the message that receives is judged: destination device is assembled all frames of the software that receives, is reduced into complete software, if find to exist in the single software phenomenon of frame losing; To initiatively report the message that loads failure to give OLT so; Carried the numbering of lost frames in the numbering of losing software and this software in the message of this loading failure, OLT confirms to load the software of failure according to the information of carrying in the control message, and the software that loads failure is retransmitted; Destination device is according to loading the load software information of number of carrying in the initiate notification; Number to the software that loads is judged, if find certain software loss, then reports the message that loads failure to give OLT; Load in the message of failing and carried the numbering of losing software; OLT confirms to load the software of failure according to the information in the message that loads failure, and the software that loads failure is retransmitted, and the software that loads failure is all numbered through software and discerned;
3), all softwares that load failure are retransmitted all adopt multicast mode to carry out, can guarantee efficiency of retransmission like this.
After OLT one time to all software multicasts that need load, carry out second time multicast to the software that the loading of offering on the destination device is failed and load,, then carry out the 3rd time multicast and load if after second time multicast loads end the loading failure is arranged still.The pass of multicast retransmission can be on OLT configured in advance, as disposing the number of retransmissions of a maximum.Utilize mode that multicast loads and realize that multicast loads the multicast retransmission of reliability, provides a concrete instance here based on above:
For example during certain device upgrade, need upgrade to the destination device of T type, upgrading this time needs N software of loading.Concrete software loading flow process is as shown in Figure 3, and wherein, destination device 1 is not the destination device of T type with destination device 2, but forwarding chip 3 can't discern with optical splitter, also can be on destination device 1 and destination device 2 during software loading with software loading.
Before starting software loading; OLT at first sends the loading initiate notification; Send to all destination devices with multicast mode through multicast channel, comprise the information such as frame number that device type, software number and software that load software is suitable for are split in this initiate notification.
Initiate notification through the multicast forwarding layer duplicate with multicast forwarding after arrive all destination devices; Destination device carries out type matching according to the information that loads in the initiate notification: destination device 1 carries out finding that the software of current loading and the device type of oneself do not match after the type matching with destination device 2; Whether then reject the multicast message of subsequent load, be that the multicast message of upgrade software is the identification that comes through the Ether frame type to follow-up multicast message.The T type equipment, like destination device 3, the type matching success, then preparation receives the multicast message of subsequent load.
After the type matching, OLT initiates software loading.The multicast loading procedure of software is as shown in Figure 4, and when the first pass multicast loaded, all softwares that need load loaded successively, after promptly software 1 loads and accomplishes, carries out the loading of software 2 again, accomplishes loading up to software N, and then the first pass multicast loads and finishes.The single software that needs to load adopts the mode of multicast message to divide frame to load successively again; Being split into 1000 frames like software 1 loads; Frame number is followed successively by frame 1, frame 2, frame 3...... frame 1000, and the loading to software 1 is then accomplished in then 1000 loadings successively from frame 1 to frame when being loaded into frame 1000.
In the multicast loading procedure; The frame number information that the destination device of type matching is split into according to the software that carries in the loading initiate notification; Integrality to the software that receives is judged, if find LOF or software loss, then reports the message that loads failure to give OLT; Load and carry the software numbering in the message of failing, perhaps carry frame number and affiliated software numbering thereof.For example find the 5th LOF of software 1, then report to load failure, carried the numbering of software 1 and the numbering of frame 5 in this loading failure,, then only carry the numbering of software 1 if software 1 is lost to OLT.If do not receive the software loading failure that destination device reports, OLT then gives tacit consent to the software loading success to destination device.
As shown in Figure 4, after the first pass multicast loaded and finishes, OLT received the message that software A, software B and software C load failure; OLT carries out second time multicast to the software that loads failure and loads; After second time multicast loads,, load failure like the software B among Fig. 4 if also receive the message that loads failure; Carry out the 3rd time multicast so and load, reach the predefined maximum retransmit pass of OLT up to re-transmission.
In the retransmission processes, whether the software that destination device will be discerned re-transmission is successfully received, if successfully received then abandon the software of this re-transmission.For example among Fig. 3; If destination device 3 in the first pass multicast procedures with regard to complete N the software that received; So when OLT carries out second time multicast; Destination device 3 all will abandon for the file A that receives, file B and file C, and destination device is numbered according to software for the identification of these softwares and discerned.
Second embodiment provided by the invention is a kind of software loading system that is applied in a little in the multiple spot multi-plexing light accessing system, comprises optical line terminal OLT and destination device.
Wherein, OLT is used for setting up multicast channel and the unicast channel between itself and a plurality of said destination device above that; Send the loading initiate notification to destination device, comprise the information such as frame number that device type, software number and software that load software is suitable for are split in this loading initiate notification.OLT also is used to initiate software loading, and needs purpose of upgrading equipment is loaded.OLT also is used to receive the information of the software loading failure that destination device returns; The information of this loading failure can be the message of certain LOF in certain software; Also can be the message of certain software loss; And according to frame number of carrying in the failure information and affiliated software numbering thereof, or only confirm to load the software of failing according to the software numbering, the software that loads failure is carried out multicast retransmission.More than all implementation procedure identical with method embodiment, repeat no more here.
Destination device is to be used to receive the software from OLT; And the integrality of the software that receives judged: if find LOF or certain software loss; Then report the message that loads failure to give destination device; Load and carry software numbering and frame number in the message of failing, or only carry the software numbering.Destination device is when reception OLT retransmits, and whether the software that discern re-transmission receives, if received the software that will abandon re-transmission so.Concrete implementation procedure repeats no more with method embodiment here.Destination device received earlier and loads initiate notification before the receiving group load software, and carried out the coupling of device type according to the information in the initiate notification of loading, and whether decision receives the subsequent load message, and this process repeats no more with method embodiment here.
The 3rd embodiment that the embodiment of the invention provides is a kind of software loading apparatus, and is as shown in Figure 6, comprises starting module, load-on module, receiver module, determination module and sending module.
Start module, be used for sending the loading initiate notification through multicast channel, wherein, said multicast channel builds on the OLT, is used for communicating between said OLT and the destination device;
Receiver module is used to receive the message that loads failure;
Determination module, the numbering of the software that is used for carrying based on the message that loads failure and the numbering of lost frames confirm to load the software of failure, perhaps confirm to load the software of failing based on the numbering of losing software;
Sending module is used for after starting module transmission loading initiate notification, initiating software loading through multicast channel to the equipment that needs load software; After determination module confirms to load the software of failure, the software that loads failure is carried out multicast retransmission through said multicast channel.
The 4th embodiment that the embodiment of the invention provides is a kind of software receiving system, and is as shown in Figure 7, comprises receiver module, analysis module, feedback module and determination module.
Receiver module is used for receiving the loading initiate notification, comprises device type, the number of load software and the frame number that single load software is split into that load software is suitable in this loading initiate notification, and receiving software;
Analysis module is used for carrying out the device type coupling based on the device type information that loads initiate notification, if the device type that this loading was suitable for and oneself not matching is then rejected the multicast message of subsequent load;
Feedback module; Be used for the frame number information that is split into according to software; Integrality to the software that receives is judged; If there is the frame losing phenomenon in the software, then report the message that loads failure through unicast channel, carried the numbering of lost frames and the numbering of its affiliated software in the message of this loading failure; According to the software number integrality of the software that receives is judged; If there is the software loss phenomenon, then report the message that loads failure through unicast channel, carried the numbering of losing software in the message of this loading failure; Wherein, Said unicast channel builds on the OLT, is used for destination device and said OLT communicates;
Determination module if be used for the software that receiver module receives re-transmission, then judges through the software numbering whether retransmit software is successfully received, if then abandon said re-transmission software.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in one or more computer read/write memory mediums; This program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
More than be merely preferred embodiment of the present invention, or not all within spirit of the present invention and principle in order to restriction the present invention, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. method for loading software is applied in a little in the multiple spot multi-plexing light accessing system, it is characterized in that said method comprises:
A), in multicast channel and the unicast channel set up on the optical line terminal OLT between said OLT and a plurality of destination device;
B), said OLT utilizes said multicast channel to send to destination device and loads initiate notification; Comprise in the said loading initiate notification and load the device type information that software was suitable for, the number that loads software and the frame number that single loading software is split into; Said destination device carries out type matching based on the said device type information in the said loading initiate notification; If said device type and oneself do not match, then reject the multicast message of subsequent load software;
C), said OLT sends load software through said multicast channel to said destination device;
D) if said OLT receives the message from the loading failure of said destination device through said unicast channel; Then confirm to load the software of failure, and the software of said loading being failed through said multicast channel carries out multicast retransmission according to the message of said loading failure.
2. the method for claim 1 is characterized in that, before said step d), also comprises:
The frame number that said destination device is split into based on said single loading software; Integrality to the software that receives is judged; If there is the frame losing phenomenon in the said software; Then report the message that loads failure to give said OLT, carry the numbering of these lost frames and the numbering of the software under it in the message of said loading failure through said unicast channel;
Said destination device is according to the number of said load software; Integrality to the software that receives is judged; If there is the software loss phenomenon in the said software; Then report the message that loads failure to give said OLT, carry the numbering that this loses software in the message of said loading failure through said unicast channel.
3. method as claimed in claim 2 is characterized in that, said step d) specifically comprises:
Behind the message of said unicast channel reception from the loading failure of said destination device; Confirm to load the software of failing according to the numbering of the lost frames that carry in the said message and the numbering of the software under it; Perhaps confirm to load the software of failure, and the software of said loading being failed through said multicast channel carries out multicast retransmission according to the numbering of losing software of carrying in the said message.
4. method as claimed in claim 3 is characterized in that, after said step d), also comprises:
Said destination device judges whether said re-transmission software is successfully received, if then abandon said re-transmission software according to the numbering of the re-transmission software that receives.
5. like arbitrary described method in the claim 1 to 4, it is characterized in that said step c) also comprises: said destination device is according to the Ether frame type of the multicast message that receives, and whether discern this multicast message is the multicast message of load software.
6. software loading system is applied in a little in the multiple spot multi-plexing light accessing system, it is characterized in that, comprising:
Optical line terminal OLT and destination device;
Said OLT is used for setting up multicast channel and the unicast channel between itself and a plurality of said destination device thereon; Through and said destination device between multicast channel send to load initiate notification; Comprise in the said loading initiate notification and load the device type information that software was suitable for, the number that loads software and the frame number that single loading software is split into; Send loading software through said multicast channel to said destination device; And receive the message that loading is failed, and confirm to load the software of failing based on the message of said loading failure, the software of said loading being failed through said multicast channel carries out multicast retransmission;
Said destination device is used to receive said loading initiate notification; The device type information that is suitable for based on the loading software that carries in the said loading initiate notification carries out the device type coupling; If the device type that said loading software is suitable for and oneself not matching is then rejected the multicast message of subsequent load software; If the device type that said loading was suitable for and oneself coupling; Then receive the loading software that said OLT sends; Integrality to the loading software that receives is judged, if there is the frame losing phenomenon in the said software, then reports the message that loads failure to give said OLT through said unicast channel; Carry the numbering of these lost frames and the numbering of its affiliated software in the message of said loading failure; If there is the software loss phenomenon in said software, then report the message that loads failure to give said OLT through said unicast channel, carried the numbering of losing software in the message of said loading failure; And receive the multicast retransmission that said OLT carries out, based on the numbering of the re-transmission software that receives, judge whether said re-transmission software is successfully received, if then abandon said re-transmission software.
7. software loading apparatus is applied in a little in the multiple spot multi-plexing light accessing system, it is characterized in that, comprising:
Start module; Be used for sending the loading initiate notification through multicast channel; Comprise the frame number that device type information, load software number and single load software that load software is suitable for are split in the said loading initiate notification; Wherein, said multicast channel builds on the OLT, is used for said OLT and destination device and communicates;
Load-on module is used for after said startup module is sent the loading initiate notification, load software being sent to sending module;
Receiver module is used to receive the message that loads failure;
Determination module; The numbering of the lost frames that the message of the loading failure that is used for receiving according to said receiver module carries and the numbering of software under it confirm to load the software of failure, and the numbering of losing software of carrying in the message of the loading failure that perhaps receives according to said receiver module confirms to load the software of failure; And the software that will load failure sends to sending module
Sending module, the load software that is used for said load-on module is sent is initiated software loading through said multicast channel to the equipment that needs load software; The software of the loading of said determination module transmission being failed through said multicast channel carries out multicast retransmission.
8. a software receiving system is characterized in that, comprising:
Receiver module is used for receiving the loading initiate notification, comprises device type information, the number of load software and the frame number that single load software is split into that load software is suitable in the said loading initiate notification, and receives load software;
Analysis module; Be used for carrying out type matching according to the device type information that the loading initiate notification that said receiver module receives carries; If the device type that said load software was suitable for and oneself do not match, then notify the software of receiver module rejection subsequent load;
Feedback module; Be used for the frame number that is split into according to the single load software that the loading initiate notification that said receiver module receives carries; The integrality of the load software that said receiver module is received is judged; If there is the frame losing phenomenon in the said software, then report the message that loads failure through unicast channel, carried the numbering of lost frames and the numbering of its affiliated software in the message of said loading failure; The number of the load software that carries in the loading initiate notification that receives according to said receiver module is judged the integrality of the said load software that receives; If there is the software loss phenomenon; Then report the message that loads failure, carried the numbering of losing software in the message of said loading failure, wherein through said unicast channel; Said unicast channel builds on the OLT, is used for destination device and said OLT communicates.
9. device as claimed in claim 8 is characterized in that, also comprises:
Determination module is used for when said receiver module receives the software of re-transmission, judges through the numbering of this re-transmission software that receives whether retransmit software is successfully received, if then abandon said re-transmission software.
Priority Applications (1)
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| CN101304617A (en) * | 2008-06-20 | 2008-11-12 | 深圳华为通信技术有限公司 | Method, apparatus and system as well as server for upgrading optical network terminal |
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| CN101304617A (en) * | 2008-06-20 | 2008-11-12 | 深圳华为通信技术有限公司 | Method, apparatus and system as well as server for upgrading optical network terminal |
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