CN104270688A - System and method for upgrading ONUs (optical network units) on EPON (Ethernet passive optical network) in batch - Google Patents
System and method for upgrading ONUs (optical network units) on EPON (Ethernet passive optical network) in batch Download PDFInfo
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Abstract
The invention discloses a system for upgrading ONUs (optical network units) on EPON (Ethernet passive optical network) in batch. The system comprises a command sending module, an information obtaining module, an updating module, a file splitting module, and a file writing module, wherein the command sending module is used for controlling an OLT (optical line terminal) to send an updating command to the ONUs, the information obtaining module is used for obtaining equipment information of the ONUs, the updating module is connected with the information obtaining module and is used for generating a list of to-be-updated ONUs, the file splitting module is used for splitting updating file data into blocks, and the file writing module is used for controlling the OLT to send data blocks to the ONUs and controlling the ONUs to receive the updating file data. The invention further discloses a method for upgrading the ONUs (optical network units) on EPON (Ethernet passive optical network) in batch. The system and the method can realize parallel processing of ONU upgrading in batch, and increase the speed of ONU upgrading in batch without modifying information defined by telecommunication specifications.
Description
Technical field
The present invention relates to ethernet passive optical network field, be specifically related to system and the method thereof of ONU in a kind of batch upgrade EPON.
Background technology
At EPON(ethernet passive optical network, ETHERNET Passive Optical Network) in system, OLT(optical line terminal, optical line terminal) for ONU(optical node, Optical Network Unit) software upgrading be an important remote management capability.At present, in EPON connecting system, the software upgrading of ONU mainly utilizes OAM(Operations, Administration and Maintenance, Operation Administration and Maintenance) message carries out software upgrading to ONU, and the specific requirement of this escalation process is in " China Telecom's EPON equipment technical requirement ", communication between OLT and ONU then adopts the Ethernet protocol of two layers, with MPCP(Multi-point Control Protocol, Multi-Point Control Protocol) in OAM passage be carrier, upgrade command is encapsulated in OAM data frame by OLT and transmits.
In practical operation, need to carry out software upgrading to large batch of ONU.During batch upgrade ONU, the simplest strategy is exactly that ONU1, ONU2 are until ONU N successively according to the flow process downloaded, activate and load.But this escalation policy is by the at substantial time, therefore simple and impracticable.This just makes to shorten the important indicator that this requirement of update time becomes research and development.
In " China Telecom's EPON equipment technical requirement ", mainly comprise " version download " and " activate and load " two processes by the ONU software upgrading function of OAM mechanism.Wherein, the autoboot of restarting after opportunity and activation manipulation handling ONU in activation submission process well is one and shortens ONU software upgrading subject matter consuming time, but it is little to optimize space in this process.And in version downloading process the main block transmission being file transfer content-message consuming time, if want the speed accelerating the upgrading of ONU volume software, the block transmission mechanism resolving file content is the factor that must consider for shortening update time.
Also also exist in other solutions of the prior art and need the message of amendment telecommunication specification definition and increase the shortcomings such as the new attribute of ONU, cause the difficulty in R&D process and maintenance process, be not suitable for adopting.
Summary of the invention
The object of the present invention is to provide system and the method thereof of ONU in a kind of batch upgrade EPON, the parallelization process of ONU batch upgrade can be reached, accelerate the batch upgrade speed of ONU, and do not need the message revising telecommunication specification definition.
In order to achieve the above object, the present invention is achieved through the following technical solutions: the system of ONU in a kind of batch upgrade EPON, is characterized in, comprises:
Order sending module, sends upgrade command for control OLT to ONU;
Data obtaining module, for obtaining the facility information of ONU;
Upgraded module, is connected with described data obtaining module, for generating ONU list to be upgraded;
File declustering module, for carrying out piecemeal to upgrade file data;
File writing module, sends file data piecemeal for control OLT to ONU, and control ONU receives upgrade file data.
System comprises an active module further, sends an activation command for controlling described OLT to ONU, performs upgrading flow process with all ONU controlled in ONU list to be upgraded.
In batch upgrade EPON, a method of ONU, is characterized in, comprises following steps:
S1, order sending module control OLT send upgrade command to ONU;
S2, data obtaining module obtain the facility information receiving the ONU of described upgrade command, and facility information is sent to upgraded module;
S3, upgraded module, according to facility information, generate ONU list to be upgraded, and each ONU in described ONU list to be upgraded all comprises a unique identifying information;
Upgrade file data in OLT are carried out piecemeal by S4, file declustering module, and wherein each file data piecemeal all comprises a unique identifying information;
S5, file writing module control OLT send file data piecemeal to all ONU in ONU list to be upgraded, and control ONU receives All Files deblocking;
S6, active module control OLT send an activation command to all ONU in ONU list to be upgraded, and all ONU controlled in ONU list to be upgraded perform upgrading flow process.
Preferably, described facility information comprises ONU Vendor, ONU type, Software/Firmware version.
Preferably, described step S1 is specially:
S1.1, order sending module control OLT send File Write Request message to ONU, request write file;
S1.2, ONU return File Transfer ACK message after agreeing to write request.
Preferably, described step S5 is specially:
S5.1, file writing module control OLT send file data piecemeal to the corresponding ONU in ONU list to be upgraded;
S5.2, the timer enabling OLT judge whether ONU receives response in the given time, if then perform step S5.4, then perform step S5.3 if not;
S5.3, continue to judge whether whether the number of times sent continuously at the appointed time exceeds set point number, if then perform step S5.5, then perform step S5.6 if not;
S5.4, judge whether current file deblocking is last piecemeal, then performs S5.7 if not, and if so, then ONU receives All Files deblocking;
S5.5, to disconnect, and mistake is reported webmaster;
S5.6, OLT resend file data piecemeal to ONU, and repeat step S5.2;
S5.7, file writing module control OLT send next file data piecemeal to the corresponding ONU in ONU list to be upgraded, and repeat step S5.2.
Preferably, comprise S5.8 further, if ONU repeats to receive the file data piecemeal that OLT issues, then the file data piecemeal of repetition abandons by ONU; S5.9, if OLT repeats the response receiving ONU, then OLT will ignore the response of repetition.
Preferably, be packaged with File Transfer Data message in the deblocking that in described step S5.1, OLT sends, in File Transfer Data message, comprise the identifying information of corresponding ONU and the identifying information of file data piecemeal;
Described ONU comprises the identifying information of ONU and the identifying information of file data piecemeal in receiveing the response.
Preferably, the scheduled time in described step S5.2 is 1 second; Set point number in described step S5.3 is 3 times.
In a kind of batch upgrade of the present invention EPON, the system of ONU and method thereof compared with prior art have the following advantages: OLT is by File Transfer Data (broadcast LLID) message all online ONU under Data Block is issued PON mouth, realize the parallel transmission of file content, shorten the software upgrading time of batch ONU; Reduce " not busy remaining " time of File Transfer ACK message, the parallelization process of ONU batch upgrade can be reached, accelerate the batch upgrade speed of ONU, and not need the message revising telecommunication specification definition.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the system of ONU in a kind of batch upgrade EPON of the present invention;
Fig. 2 is the flow chart of the method for ONU in a kind of batch upgrade EPON of the present invention;
Fig. 3 is the interaction diagrams that ONU software version is downloaded;
Fig. 4 is the invention process illustration.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As shown in Figure 1, the system of ONU in a kind of batch upgrade EPON, comprises: order sending module 1, sends upgrade command for control OLT to ONU; Data obtaining module 2, for obtaining the facility information of ONU; Upgraded module 3, is connected with described data obtaining module 2, for generating ONU list to be upgraded; File declustering module 4, for carrying out piecemeal to upgrade file data; File writing module 5, sends file data piecemeal for control OLT to ONU, and control ONU receives upgrade file data; Active module 6, sends an activation command for controlling described OLT to ONU, performs upgrading flow process with all ONU controlled in ONU list to be upgraded.
As shown in Figure 2, a kind of method of ONU in batch upgrade EPON, comprises following steps:
S1, order sending module 1 control OLT send upgrade command to ONU;
S2, data obtaining module 2 obtain the facility information (as ONU Vendor, ONU type, Software/Firmware version) receiving the ONU of described upgrade command, and facility information is sent to upgraded module 3;
S3, upgraded module 3, according to facility information, generate ONU list to be upgraded, and each ONU in described ONU list to be upgraded all comprises a unique identifying information;
Upgrade file data in OLT are carried out piecemeal by S4, file declustering module 4, and wherein each file data piecemeal all comprises a unique identifying information;
S5, file writing module 5 control OLT send file data piecemeal to all ONU in ONU list to be upgraded, and control ONU receives All Files deblocking;
S6, active module 6 control OLT send an activation command to all ONU in ONU list to be upgraded, and all ONU controlled in ONU list to be upgraded perform upgrading flow process.
Wherein, step S1 comprises: S1.1, order sending module 1 control OLT send File Write Request message to ONU, request write file;
S1.2, ONU return File Transfer ACK message after agreeing to write request.
Step S5 comprises: S5.1, file writing module 5 control OLT send file data piecemeal to the corresponding ONU in ONU list to be upgraded;
S5.2, the timer enabling OLT judge whether ONU receives response in the given time, if then perform step S5.4, then perform step S5.3 if not;
S5.3, continue to judge whether whether the number of times sent continuously at the appointed time exceeds set point number, if then perform step S5.5, then perform step S5.6 if not;
S5.4, judge whether current file deblocking is last piecemeal, then performs S5.7 if not, and if so, then ONU receives All Files deblocking;
S5.5, to disconnect, and mistake is reported webmaster;
S5.6, OLT resend file data piecemeal to ONU, and repeat step S5.2;
S5.7, file writing module 5 control OLT send next file data piecemeal to the corresponding ONU in ONU list to be upgraded, and repeat step S5.2.
If S5.8 ONU repeats to receive the file data piecemeal that OLT issues, then the file data piecemeal of repetition abandons by ONU;
If S5.9 OLT repeats the response receiving ONU, then OLT will ignore the response of repetition;
Be packaged with File Transfer Data message in the deblocking that in described step S5.1, OLT sends, in File Transfer Data message, comprise the identifying information of corresponding ONU and the identifying information of file data piecemeal; Described ONU comprises the identifying information of ONU and the identifying information of file data piecemeal in receiveing the response.
The scheduled time in described step S5.2 is 1 second; Set point number in described step S5.3 is 3 times.
Embodiment one:
In common batch ONU software upgrade scheme, after OLT sends each segmentation, after need waiting for that whole ONU replys acknowledge message, OLT could send next segmentation, this just also exists " not busy remaining " matter of time in File Transfer ACK message process, increases the time of ONU software upgrading so to a great extent.
In the present invention, all for OLT online ONU are numbered, form unique identifying information, the mode of sequence number is such as adopted to mark, such as always the sequence number of total m ONU, ONU is 1 ~ m, m is positive integer, piecemeal is carried out to upgrade file data simultaneously, and form unique identifying information, such as adopt the mode of sequence number to mark, such as, always have n piecemeal, be 1 ~ n, n from file data piecemeal be positive integer.
Therefore, mark OLT sends file data piecemeal j and is designated as FTD_i/j to the File Transfer Data message of ONU i, and its File Transfer Ack response message is designated as FTA_i/j.
As in Fig. 3, the interaction diagrams that ONU software version is downloaded, OLT can obtain the relevant mib information of ONU by GET order, as ONU Vendor, ONU type, Software/Firmware version etc., when OLT determines that ONU needs update software/firmware, OLT first sends File Write Request message and asks write file to ONU, ONU returns File Transfer ACK message after agreeing to write request, the file data piecemeal that then OLT starts to write sends to ONU successively, and only have after ONU returns acknowledge message, OLT could send next segmentation.In order to improve efficiency of transmission, in transmission file processes, the OAMPDU planted agent that OLT sends encapsulates 1 File Transfer Data message, and 1 file data piecemeal (Block) is not more than 1400 bytes.The OAMPDU planted agent that ONU returns encapsulates corresponding File Transfer ACK message.Only have the sequence number in the File Transfer ACK message returned as ONU to be correct sequence number, OLT just can send next segmentation.Otherwise OLT should resend the file data piecemeal encapsulated in last OAMPDU.If the Data territory of the File Transfer Data message that OLT sends is less than 1400 bytes, then the file data piecemeal in this message is last piecemeal of data file.
As shown in Figure 4, comprise 4 ONU, the concurrent transmission of OLT first file data piecemeal 1, such as ONU2 sends response message (FTA_2/1), then send second file data piecemeal 2(FTD_2/2), in addition, in OLT side, timer File_Writing_OLT_Timer is set, OLT sends a message and just starts timer, if still do not receive the acknowledge message of ONU after File_Writing_OLT_Timer time-out, then OLT resends this message.The time-out time default setting of File_Writing_OLT_Timer is 1s.When continuous three resend messages of OLT all do not receive any acknowledge message, then connection closed, reports webmaster.In a downloading process, if ONU receives the piecemeal of the duplicate serial numbers that OLT issues, ONU should reply successfully and abandon the file data piecemeal of the repetition received.OLT, after the confirmation receiving ONU reply, should get started the transmission of next file data piecemeal; If OLT receives the confirmation of the duplicate serial numbers that ONU replys, OLT should ignore this message.In the File_Writing_OLT_Timer time, can regard as 4 ONU parallel fragmentation transmission.The program is the reduction of " not busy remaining " time waiting for File Transfer Ack message in fact, achieves accurate parallel processing, and does not need the message revising telecommunication specification definition.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a system of ONU in batch upgrade EPON, is characterized in that, comprise:
Order sending module (1), sends upgrade command for control OLT to ONU;
Data obtaining module (2), for obtaining the facility information of ONU;
Upgraded module (3), is connected with described data obtaining module (2), for generating ONU list to be upgraded;
File declustering module (4), for carrying out piecemeal to upgrade file data;
File writing module (5), sends file data piecemeal for control OLT to ONU, and control ONU receives upgrade file data.
2. the system of ONU in batch upgrade EPON as claimed in claim 1, is characterized in that, comprises an active module (6) further, sending an activation command for controlling described OLT to ONU, perform upgrading flow processs with all ONU controlled in ONU list to be upgraded.
3. a method of ONU in batch upgrade EPON, is characterized in that, comprise following steps:
S1, order sending module (1) control OLT send upgrade command to ONU;
S2, data obtaining module (2) obtain the facility information receiving the ONU of described upgrade command, and facility information are sent to upgraded module (3);
S3, upgraded module (3), according to facility information, generate ONU list to be upgraded, and each ONU in described ONU list to be upgraded all comprises a unique identifying information;
Upgrade file data in OLT are carried out piecemeal by S4, file declustering module (4), and wherein each file data piecemeal all comprises a unique identifying information;
S5, file writing module (5) control OLT send file data piecemeal to all ONU in ONU list to be upgraded, and control ONU receives All Files deblocking.
4. the method for ONU in batch upgrade EPON as claimed in claim 3, it is characterized in that, comprise step S6 further, active module (6) control OLT sends an activation command to all ONU in ONU list to be upgraded, and all ONU controlled in ONU list to be upgraded perform upgrading flow process.
5. in the batch upgrade EPON as described in claim 3 or 4, the method for ONU, is characterized in that, described facility information comprises ONU Vendor, ONU type, Software/Firmware version.
6. the method for ONU in batch upgrade EPON as claimed in claim 4, it is characterized in that, described step S1 is specially:
S1.1, order sending module (1) control OLT send File Write Request message to ONU, request write file;
S1.2, ONU return File Transfer ACK message after agreeing to write request.
7. the method for ONU in batch upgrade EPON as claimed in claim 6, it is characterized in that, described step S5 is specially:
S5.1, file writing module (5) control OLT send file data piecemeal to the corresponding ONU in ONU list to be upgraded;
S5.2, the timer enabling OLT judge whether ONU receives response in the given time, if then perform step S5.4, then perform step S5.3 if not;
S5.3, continue to judge whether whether the number of times sent continuously at the appointed time exceeds set point number, if then perform step S5.5, then perform step S5.6 if not;
S5.4, judge whether current file deblocking is last piecemeal, then performs S5.7 if not, and if so, then ONU receives All Files deblocking;
S5.5, to disconnect, and mistake is reported webmaster;
S5.6, OLT resend file data piecemeal to ONU, and repeat step S5.2;
S5.7, file writing module (5) control OLT send next file data piecemeal to the corresponding ONU in ONU list to be upgraded, and repeat step S5.2.
8. the method for ONU in batch upgrade EPON as claimed in claim 7, is characterized in that, comprise S5.8 further, if ONU repeats to receive the file data piecemeal that OLT issues, then the file data piecemeal of repetition abandons by ONU; S5.9, if OLT repeats the response receiving ONU, then OLT will ignore the response of repetition.
9. the as claimed in claim 7 or 8 method of ONU in batch upgrade EPON, it is characterized in that, be packaged with File Transfer Data message in the deblocking that in described step S5.1, OLT sends, in File Transfer Data message, comprise the identifying information of corresponding ONU and the identifying information of file data piecemeal;
Described ONU comprises the identifying information of ONU and the identifying information of file data piecemeal in receiveing the response.
10. the method for ONU in batch upgrade EPON as claimed in claim 7, it is characterized in that, the scheduled time in described step S5.2 is 1 second; Set point number in described step S5.3 is 3 times.
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| CN106412730A (en) * | 2016-09-09 | 2017-02-15 | 武汉长光科技有限公司 | Method for carrying out remote batch upgrading on ONU (Optical Network Unit) system software in Boot environment |
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| CN115314778A (en) * | 2022-07-11 | 2022-11-08 | 烽火通信科技股份有限公司 | Batch ONU upgrading method, device and equipment |
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