Optical Network Unit Logical Path Generation via Router ID Acquisition
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Solution Overview
Problem
Existing optical communication network systems struggle to generate logical paths between optical network units (ONUs) and optical line terminals (OLTs when terminal devices are connected through network devices like routers, limiting the ability to allocate bandwidth and prioritize connections.
Innovation Solution
Incorporating an ID acquisition/notification unit in network devices, such as Home Gateways, to acquire and notify terminal ID information to ONUs, allowing the generation of logical paths using acquired ID information for each terminal device connected via an optical transmission line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an ONU uses a single MAC address to generate logical paths, then the system configuration is simple, but the number of logical paths is limited and cannot be increased as desired
Solution Approach 1:
The ONU is designed to support multiple MAC addresses (first MAC address and second MAC address) within a single device, enabling it to generate multiple logical paths (first logical path and second logical path) simultaneously. This multi-functionality allows the ONU to serve multiple terminal devices or provide multiple services through a single device, increasing adaptability without requiring separate ONU devices for each logical path.
2Adaptability or versatility
If logical path generation is based on pre-allocated MAC addresses, then the authentication process is straightforward, but the system cannot accommodate terminal devices connected through router devices
Solution Approach 1:
The router device acts as an intermediary between the terminal device and the ONU. The router acquires the terminal device's ID information (such as MAC address) and forwards this information to the ONU. This intermediary mechanism enables the ONU to obtain terminal device identification information even when the terminal is not directly connected, allowing logical path generation for indirectly connected devices while maintaining the existing authentication framework.
3Adaptability or versatility
If multiple MAC addresses are allocated to an ONU, then multiple logical paths can be generated, but the allocation must be set in advance which limits flexibility
Solution Approach 1:
The system transitions from a static MAC address allocation model to a dynamic one. Instead of requiring pre-configuration of multiple MAC addresses in the ONU, the system enables dynamic acquisition of MAC addresses through the router intermediary. The ONU can adaptively receive and process MAC address information from multiple sources (directly connected devices and router-mediated devices) in real-time, allowing logical paths to be created on-demand based on actual connection needs rather than predetermined configurations.
Data Source
AI summary
An object of the present disclosure is to enable an ONU to acquire ID information of terminal devices even when a network device is connected between the ONU and the terminal devices, and to thereby enable generation of a logical path between the ONU and the OLT. The present disclosure relates to an optical communication network system configured to connect a terminal device and a passive optical network (PON) system via a network device. The PON system includes an optical line terminal and an optical network unit connected using an optical transmission line. The network device is configured to acquire ID information of the terminal device, and notify the optical network unit of the acquired ID information. The optical network unit is configured to acquire ID information of the terminal device from the network device, and generate a logical path to the optical line terminal on the optical transmission line using the acquired ID information.