CN117527060A

CN117527060A - ONU data acquisition method, device and system

Info

Publication number: CN117527060A
Application number: CN202210898721.3A
Authority: CN
Inventors: 汤健
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2024-02-06
Also published as: WO2024022458A1

Abstract

The embodiment of the application provides an ONU data acquisition method, device and system, wherein the method comprises the following steps: receiving an acquisition request sent by an Optical Line Terminal (OLT); collecting ONU data and generating an acquisition message based on an acquisition model, wherein the coding format of the acquisition message is the same as the identifiable coding format of an upper acquisition platform; and pushing the acquisition message to the OLT through network connection between the OLT and the ONU, so that the OLT forwards the acquisition message to the upper acquisition platform. The ONU data can be efficiently collected at the second-level granularity.

Description

ONU data acquisition method, device and system

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for acquiring ONU data.

Background

In the scenario of an industrial PON (Passive Optical Network ), an OLT (optical line terminal, optical line terminal) hangs down ONUs (Optical Network Unit, optical network units) of each manufacturer, and the OLT needs to perform data collection on the ONUs to monitor the quality of the entire network.

In the related art, an OLT collects ONU data through OMCI (ONU Management and Control Interface, optical network unit management control interface) protocol. Specifically, request data is sent through an OMCI protocol, and then data returned by the ONU is acquired and analyzed.

In the OMCI protocol, a polling mode is defined to request ONU data, that is, the OLT sends a data request to each ONU in turn, and then receives the data fed back by each ONU.

However, the OLT needs to parse the received ONU data, perform coding format conversion, and then send the ONU data to the upper-layer acquisition platform, and the polling request has low performance. The two reasons cause that the whole data acquisition process consumes more time, the current network is basically at the time granularity of more than 5 minutes, and the user requirement of the second-level acquisition of the industrial scene cannot be met.

In addition, users may use ONUs of different manufacturers in an industrial scene, but at present, the OLT does not support OMCI messages customized by ONUs of different manufacturers, that is, the OLT and the ONUs of different manufacturers cannot adapt, so that data of the ONUs of different manufacturers cannot be collected.

Disclosure of Invention

The embodiment of the application aims to provide an ONU performance data acquisition method and system so as to realize high-efficiency acquisition of ONU data with second-level granularity. The specific technical scheme is as follows:

to achieve the above objective, an embodiment of the present application provides a method for acquiring ONU data, which is applied to an optical network unit ONU, and the method includes:

receiving an acquisition request sent by an Optical Line Terminal (OLT);

collecting ONU data and generating an acquisition message based on an acquisition model, wherein the coding format of the acquisition message is the same as the identifiable coding format of an upper acquisition platform;

and pushing the acquisition message to the OLT through network connection between the OLT and the ONU, so that the OLT forwards the acquisition message to the upper acquisition platform.

Optionally, the collection model defines a coding format of the collection message.

Optionally, the acquisition model is a proto model, and the coding format is a protobuf format.

Optionally, the collection model is located at the ONU.

Optionally, the acquisition model is a remote acquisition model.

Optionally, the step of pushing the acquisition message to the OLT includes:

and periodically acquiring updated messages according to the data reporting period, and pushing the updated messages to the OLT.

Optionally, the ONU data includes ONU basic data and/or pre-customized ONU extension data.

To achieve the above objective, an embodiment of the present application provides an ONU data acquisition device, which is applied to an optical network unit ONU, and includes:

the receiving module is used for receiving an acquisition request sent by the optical line terminal OLT;

the collection module is used for collecting ONU data and generating an acquisition message based on an acquisition model, and the coding format of the acquisition message is the same as the coding format identifiable by the upper acquisition platform;

and the pushing module is used for pushing the acquisition message to the OLT through network connection between the OLT and the ONU so that the OLT forwards the acquisition message to the upper acquisition platform.

Optionally, the collection model is located at the ONU.

Optionally, the acquisition model is a remote acquisition model.

Optionally, the acquisition request carries a data reporting period, and the pushing module is specifically configured to:

To achieve the above object, an embodiment of the present application provides an ONU data acquisition system, including: an optical line terminal OLT and at least one optical network unit ONU;

the OLT is configured to send an acquisition request to the ONU;

the ONU is used for collecting ONU data and generating an acquisition message based on an acquisition model after receiving the acquisition request, wherein the coding format of the acquisition message is the same as the coding format identifiable by an upper acquisition platform;

the ONU is further configured to push the acquisition packet to the OLT through a network connection between the OLT and the ONU;

and the OLT is also used for forwarding the acquisition message to the upper acquisition platform.

Optionally, the collection model defines a coding format of the message.

Optionally, the collection model is located at the ONU.

Optionally, the plurality of ONUs connected to the OLT include a plurality of ONUs of different vendors.

The embodiment of the application also provides electronic equipment, which comprises a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface, and the memory are communicated with each other through the communication bus;

a memory for storing a computer program;

and a processor for implementing any of the above method steps when executing the program stored on the memory.

Embodiments of the present application also provide a computer readable storage medium having a computer program stored therein, which when executed by a processor, implements any of the above method steps.

Embodiments of the present application also provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform any of the above-described method steps.

The beneficial effects of the embodiment of the application are that:

by applying the ONU data acquisition method, device and system provided by the embodiment of the application, the optical line terminal OLT sends an acquisition request to the optical network unit ONU; and after receiving the acquisition request, the ONU collects ONU data and encodes the ONU data based on an acquisition model to generate an acquisition message, wherein the encoding format of the acquisition message is the same as the encoding format recognizable by an upper acquisition platform, and the acquisition message is pushed to the OLT through the network connection between the OLT and the ONU so that the OLT forwards the acquisition message to the upper acquisition platform.

Therefore, the OLT does not need to collect ONU data in a polling request mode, but sends a single collection request to the appointed ONU, then the ONU converts the ONU data into a collection message based on a collection model, and the coding format of the collection message is the same as that of the upper collection platform, so that the message generated by the ONU can be directly identified by the upper collection platform, the OLT does not need to analyze and convert the format of the message any more, and the ONU data can be directly transferred to the upper collection platform, thereby greatly reducing the time delay of data collection and meeting the user requirement of second-level collection of ONU data under industrial scenes.

Of course, not all of the above-described advantages need be achieved simultaneously in practicing any one of the products or methods of the present application.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will briefly introduce the drawings that are required to be used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other embodiments may also be obtained according to these drawings to those skilled in the art.

Fig. 1 is a schematic flow chart of an ONU data collection method according to an embodiment of the present application;

fig. 2 is a schematic diagram of an ONU data collection method in the prior art;

fig. 3 is a schematic diagram of an ONU data collection method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an ONU data collection device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an ONU data collection system according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. Based on the embodiments herein, a person of ordinary skill in the art would be able to obtain all other embodiments based on the disclosure herein, which are within the scope of the disclosure herein.

In order to solve the technical problem that the time consumption of the OLT for collecting the ONU data is more in the prior art, the embodiment of the application provides a method, a device and a system for collecting the ONU data.

Referring to fig. 1, fig. 1 is a flowchart of a method for acquiring ONU data according to an embodiment of the present application, where the method is applied to an ONU, as shown in fig. 1, and the method may include the following steps:

s101: and receiving an acquisition request sent by the optical line terminal OLT.

In the embodiment of the application, the polling mode based on the OMCI protocol is not used for collecting the ONU data, that is, the OLT does not need to send the collection request to each ONU in sequence, but changes to send the collection request only to the target ONU.

As an example, the OLT may establish connections with multiple ONUs simultaneously, and if data of a certain ONU needs to be collected, a collection request may be sent to the ONU.

Wherein, the data of the ONU may include: ONU name, number of downstream FEC (Forward Error Correction, forward error correction code) correction bytes, total number of downstream reception codes (codewords), downstream FEC correction time, number of ONU reception GEM (G-PON Encapsulation Mode, GPON encapsulation mode) HEC (Header Error Checksum, head error correction), number of PON GEM frames discarded, and the like.

S102: and collecting ONU data and generating an acquisition message based on the acquisition model, wherein the coding format of the acquisition message is the same as the coding format recognizable by an upper acquisition platform.

And after receiving the acquisition request, the ONU collects ONU data and encodes the ONU data based on the acquisition model to obtain an acquisition message.

The acquisition model is a data processing model for encoding data, and can be located inside the ONU.

In one embodiment of the present application, the acquisition model defines a coding format of an acquisition message, that is, a message capable of converting acquired data into a specific coding format based on the acquisition model may also be understood as a message of a specific coding format.

Specifically, in the related art, an ONU sends collected data to an OLT based on an OMCI protocol, the OLT needs to parse the ONU data in the OMCI format, and then perform coding format conversion, that is, convert the ONU data in the OMCI format into data in a specific coding format, where the specific coding format is a coding format that can be identified by an upper layer collection platform. After the conversion of the coding format is completed, the coding format is sent to an upper acquisition platform.

In the embodiment of the application, the collection model defines the coding format of the message, and the defined coding format can be the same as the coding format recognizable by the upper collection platform, so that the ONU converts ONU data into the collection message based on the coding format defined by the collection model, and the collection message can be directly recognized by the upper collection platform, so that the OLT does not need to analyze and convert the format.

S103: and pushing the acquisition message to the OLT through network connection between the OLT and the ONU so as to enable the OLT to forward the acquisition message to an upper acquisition platform.

Because the acquisition message generated by the ONU can be directly identified by the upper acquisition platform, the OLT does not need to analyze and convert the format of the message any more, and the message can be directly forwarded to the upper acquisition platform.

Specifically, the OLT includes an OLT temp protocol stack, and the ONU may send the acquisition packet to the OLT temp protocol stack, where the OLT temp protocol stack is pushed to the upper acquisition platform by a specific protocol. Among them, specific protocols include, but are not limited to, UDP (User Datagram Protocol ), etc.; the upper collection platform may be a telemet collection platform.

By applying the ONU data acquisition method provided by the embodiment of the application, the optical line terminal OLT sends an acquisition request to the optical network unit ONU; and after receiving the acquisition request, the ONU collects ONU data and encodes the ONU data based on an acquisition model to generate an acquisition message, wherein the encoding format of the acquisition message is the same as the encoding format recognizable by an upper acquisition platform, and the acquisition message is pushed to the OLT through the network connection between the OLT and the ONU so that the OLT forwards the acquisition message to the upper acquisition platform.

In one embodiment of the present application, the acquisition model is a proto model, and the encoding format is a protobuf format.

Protobuf (Google Protocol Buffers) is a platform-independent, language-independent, scalable, lightweight, efficient coded data storage format, among others.

protobuf is binary coding, and has the advantages of easy coding and small data packet. In the related art, the coding format matched with the upper layer acquisition platform is usually a protobuf format, so that the ONU data is coded based on the proto model, the obtained message can be directly identified by the upper layer acquisition platform, and the OLT does not need to analyze and convert the message.

For ease of understanding, the following description is provided with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a schematic diagram of an ONU data collection method in the prior art, as shown in fig. 2, in the prior art, an ONU is built in with a collection chip, and is used for collecting ONU data and encoding based on an OMCI protocol format, reporting an OMCI message to an OLT, and the OLT is built in with an OMCI command issuing and analyzing module, which needs to analyze the OMCI message. Then, the protobuf coding module needs to code the acquired data into a telemet message based on a proto model, send the telemet message to an OLT telemet protocol stack, and then send the telemet message to a telemet acquisition platform through a UDP protocol. As shown in fig. 2, an OLT collecting module is built in the OLT and is used for collecting relevant data of the OLT, and the collected OLT data also needs to be encoded by a protobuf encoding module to generate a telemet message, so that the whole data collecting process consumes more time, and the current network is basically at a time granularity of more than 5 minutes.

Referring to fig. 3, fig. 3 is a schematic diagram of an ONU data collection method provided in an embodiment of the present application, as shown in fig. 3, in the embodiment of the present application, an collection model is built in an ONU, the collection model is a proto model, and a coding format is defined as a protobuf format by the model, so that the ONU can encode ONU data based on the collection model to generate a collection packet in the protobuf format, and because the coding format identifiable by an upper collection platform is protobuf, analysis and format conversion are not required inside an OLT for ONU data, thereby greatly reducing the time delay of data collection, and being capable of meeting the user requirement of second-level collection of ONU data in an industrial scene.

In one embodiment of the present application, the acquisition model is a remote acquisition model. Specifically, in the industrial PON scenario, information collected inside an ONU is defined as remote collection information, and a collection model is located inside the ONU and collects ONU data, so in this embodiment of the present application, the collection model is a remote collection model.

In one embodiment of the present application, the step of pushing the packet to the OLT may specifically include: and periodically acquiring updated messages according to the data reporting period, and pushing the updated messages to the OLT.

Specifically, the OLT sends an acquisition request to the designated ONU, where the acquisition request carries a data reporting period, for example, the period is 2 seconds. Then in the following pushing process, the ONU continuously collects data and carries out coding processing to generate a collection message, and the latest collection message is obtained by taking 2 seconds as a period and is pushed to the OLT.

Therefore, the OLT does not need to frequently initiate the acquisition request, only needs to issue the sequential acquisition requests to the appointed ONU, the ONU can continuously acquire data and continuously push the data to the OLT in a second level, the mode of continuously pushing the data by the ONU is utilized to replace the mode of carrying out the polling request based on the OMCI in the prior art, the mutual interaction messages are further reduced, the second level granularity high-efficiency acquisition of the ONU performance data is realized, and the pressure of equipment is reduced.

In one embodiment of the present application, the ONU data may include ONU base data and/or pre-customized ONU extension data.

Specifically, in the prior art, ONU data is collected based on an OMCI protocol, but the content of data defined by a standard OMCI is less, so that the requirement of a user on network monitoring in an industrial scene is difficult to meet.

In the embodiment of the application, because the ONU data is not collected based on the OMCI protocol any more, in order to meet the requirement of the user on network monitoring in the industrial scene, ONU extension data can be customized in advance, and the ONU extension data can be encoded by adopting a proto model, that is, the proto model supports encoding the customized ONU extension data into a message.

As described above, the ONU basic data may include: ONU name, number of downstream FEC correction bytes, total number of downstream reception codes, downstream FEC correction time, number of GEM HEC errors received by the ONU, number of PON GEM frames discarded, etc.

The pre-customized extension data of the ONU may include: memory utilization, CPU temperature, ONU PON port sending message number, ONU PON port receiving message error number and the like.

Therefore, in the embodiment of the application, because the ONU data is not collected based on the OMCI protocol, but a new collection model is adopted, the ONU extension data can be additionally customized, and the collection model supports the coding of the customized ONU extension data into a message, so that more types of ONU data can be collected, and the requirement of users on network monitoring in industrial scenes is met.

Moreover, ONU data collection and data reporting can be carried out by adopting a unified proto model by ONU of different manufacturers, so that the ONU data collection method provided by the embodiment of the application can realize ONU data collection of different manufacturers. That is, even if ONUs of different manufacturers are hung under the same OLT, the pre-acquisition models are built in the ONUs of different manufacturers, the ONUs of different manufacturers can encode the ONU data based on the pre-acquisition models and report the acquisition message to the same OLT, so that the method is not limited by the defect that the OMCI message does not support different manufacturers, and the acquisition of the ONU data of different manufacturers can be realized.

Referring to fig. 4, fig. 4 is a schematic structural diagram of an ONU data collection device provided in an embodiment of the present application, where the ONU data collection device is applied to an optical network unit, and the device includes:

a receiving module 401, configured to receive an acquisition request sent by an optical line terminal OLT;

the collection module 402 is configured to collect ONU data and generate an acquisition packet based on an acquisition model, where a coding format of the acquisition packet is the same as a coding format identifiable by an upper acquisition platform;

and the pushing module 403 is configured to push the acquisition packet to the OLT through a network connection between the OLT and the ONU, so that the OLT forwards the acquisition packet to the upper acquisition platform.

In one embodiment of the present application, the acquisition model defines a coding format of the acquisition message.

In one embodiment of the present application, the acquisition model is located at the ONU.

In one embodiment of the present application, the acquisition model is a remote acquisition model.

In an embodiment of the present application, the acquisition request carries a data reporting period, and the pushing module is specifically configured to: and periodically acquiring updated messages according to the data reporting period, and pushing the updated messages to the OLT.

In one embodiment of the present application, the ONU data includes ONU basic data and/or pre-customized ONU extension data.

Referring to fig. 5, an embodiment of the present application further provides an ONU performance data collection system, where the system includes: an optical line terminal OLT and at least one optical network unit ONU.

The OLT is used for sending an acquisition instruction to the ONU;

By applying the ONU data acquisition system provided by the embodiment of the application, the optical line terminal OLT sends an acquisition request to the optical network unit ONU; and after receiving the acquisition request, the ONU collects ONU data and encodes the ONU data based on an acquisition model to generate an acquisition message, wherein the encoding format of the acquisition message is the same as the encoding format recognizable by an upper acquisition platform, and the acquisition message is pushed to the OLT through the network connection between the OLT and the ONU so that the OLT forwards the acquisition message to the upper acquisition platform.

In one embodiment of the present application, the acquisition model defines a coding format of the message.

In one embodiment of the present application, the acquisition request carries a data reporting period,

the ONU is specifically configured to periodically acquire an updated message according to the data reporting period, and push the updated message to the OLT.

In one embodiment of the present application, the ONU data includes ONU basic data and pre-customized ONU extension data.

In one embodiment of the present application, the plurality of ONUs connected to the OLT include a plurality of ONUs of different vendors.

Specifically, because the ONUs of different manufacturers can adopt a unified proto model to perform ONU data acquisition and data reporting, in the embodiment of the present application, a plurality of ONUs connected to the same OLT may include ONUs of different manufacturers. Although ONU of different manufacturer is hung under the same OLT, the ONU can be internally provided with the same proto acquisition model, ONU data of different manufacturer can be encoded based on the proto acquisition model, and the acquisition message is reported to the same OLT, so that the ONU is not limited by the defect that OMCI message does not support different manufacturer, and the acquisition of ONU data of different manufacturer can be realized.

The embodiment of the present application further provides an electronic device, as shown in fig. 6, including a processor 601, a communication interface 602, a memory 603, and a communication bus 604, where the processor 601, the communication interface 602, and the memory 603 perform communication with each other through the communication bus 604,

a memory 603 for storing a computer program;

the processor 601 is configured to execute the program stored in the memory 603, and implement the following steps:

receiving an acquisition request sent by an Optical Line Terminal (OLT);

the method comprises the steps of collecting ONU data, encoding the ONU data based on an acquisition model, and generating an acquisition message, wherein the encoding format of the acquisition message is the same as the encoding format identifiable by an upper acquisition platform;

The communication bus mentioned above for the electronic devices may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.

The communication interface is used for communication between the electronic device and other devices.

The Memory may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.

The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but also digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

In yet another embodiment provided in the present application, there is further provided a computer readable storage medium, in which a computer program is stored, the computer program implementing the steps of the method for acquiring ONU performance data according to any of the above, when the computer program is executed by a processor.

In yet another embodiment provided herein, there is also provided a computer program product containing instructions that, when run on a computer, cause the computer to perform the method of collecting ONU performance data according to any of the above embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the embodiment of the ONU performance data collection system, since it is substantially similar to the embodiment of the ONU performance data collection method, the description is relatively simple, and the relevant points are only referred to in the description of the embodiment of the ONU performance data collection method.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modifications, equivalent substitutions, improvements, etc. that are within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims

1. A method for collecting ONU data, which is applied to an optical network unit ONU, the method comprising:

receiving an acquisition request sent by an Optical Line Terminal (OLT);

2. The method of claim 1, wherein the acquisition model defines a coding format of the acquisition message.

3. The method of claim 1, wherein the acquisition model is a proto model and the encoding format is a protobuf format.

4. The method of claim 1, wherein the acquisition model is located at the ONU.

5. The method of claim 1, wherein the acquisition model is a remote acquisition model.

6. The method of claim 1, wherein the acquisition request carries a data reporting period, and wherein the step of pushing the acquisition message to the OLT comprises:

7. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the ONU data comprise ONU basic data and/or pre-defined ONU extension data.

8. An ONU data acquisition device, applied to an optical network unit ONU, comprising:

9. The apparatus of claim 8, wherein the acquisition model defines a coding format of the acquisition message.

10. The apparatus of claim 8, wherein the acquisition model is a proto model and the encoding format is a protobuf format.

11. The apparatus of claim 8, wherein the acquisition model is located at the ONU.

12. The apparatus of claim 8, wherein the acquisition model is a remote acquisition model.

13. The apparatus of claim 8, wherein the acquisition request carries a data reporting period, and the pushing module is specifically configured to:

14. The apparatus of claim 8, wherein the ONU data comprises ONU base data and/or pre-customized ONU extension data.

15. A system for collecting ONU data, the system comprising: an optical line terminal OLT and at least one optical network unit ONU;

the OLT is configured to send an acquisition request to the ONU;

16. The system of claim 15, wherein the acquisition model defines a coding format of the message.

17. The system of claim 15, wherein the acquisition model is a proto model and the encoding format is a protobuf format.

18. The system of any of claims 15-17, wherein the acquisition model is located at the ONU.

19. The system of claim 15, wherein the plurality of ONUs connected to the OLT comprise a plurality of inter-vendor ONUs.