Disintegrated Optical Line Terminal Space Optimization
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Solution Overview
Problem
Current software defined optical line terminals face challenges in space occupancy and infrastructure limitations due to the need for centralized hosting of all disaggregated components, which is not feasible in many deployment areas with limited physical space and hosting capabilities.
Innovation Solution
The optical line terminal is disintegrated into a data center point of presence, access points of presence, and aggregation points of presence, with logical connections established between them using software defined networking technology, allowing for the distribution of internal functions in a ratio of n:m:1, where n corresponds to access points and m corresponds to aggregation points, enabling functional disintegration and reducing space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all disaggregated parts of OLT are hosted in the same Access POP, then security, high availability and real-time communication attributes are improved, but physical space and infrastructure requirements increase beyond available capacity
Solution Approach 1:
The OLT is segmented into multiple disaggregated parts distributed across different locations: Access POP (n parts), Aggregation POP (m parts), and Data Center POP (1 part). This segmentation allows each location to host only the components it needs, reducing the physical space requirement at any single location while maintaining system reliability through distributed architecture.
Solution Approach 2:
The invention transitions from a single-location centralized hosting model to a multi-location distributed hosting model, adding a spatial dimension to the deployment architecture. This allows the system to achieve high availability through geographic distribution rather than concentrating all components in one physical space.
2Speed
If all disaggregated parts of OLT are hosted in the same Access POP, then real-time communication attributes are improved, but infrastructure capabilities are exceeded
Solution Approach 1:
Different POP locations are assigned different functional roles based on their infrastructure capabilities: Access POP handles access-layer functions, Aggregation POP handles aggregation functions, and Data Center POP handles centralized control functions. Each location is optimized for its specific role, allowing the overall system to achieve real-time communication while adapting to varying infrastructure capabilities at different locations.
3Area of stationary object
If OLT functions are distributed across multiple POPs, then space occupancy is reduced, but device complexity increases
Solution Approach 1:
The disaggregated OLT architecture uses universal standardized interfaces and protocols (such as SDN controllers and network protocols) that enable the same type of equipment to perform different functions depending on its deployment location. This universality simplifies the overall system complexity by allowing reuse of standardized components across multiple POPs, despite the distributed nature of the deployment.
Data Source
AI summary
The present disclosure relates to an optical line terminal device. The optical line terminal device includes a data center point of presence module, one or more access point of presence modules and one or more aggregation point of presence modules. The data center point of presence module includes a first region and a second region. The first region includes a leaf and spine fabric and a top-of-rack architecture. The second region includes compute infrastructure and storage infrastructure. Further, the one or more access point of presence modules include optical line terminal-Gigabit Passive Optical Networks access input/output and Metro Ethernet Access input/output. The one or more aggregation point of presence include access input/output hardware abstraction, limited compute infrastructure and multi-protocol label switching transfer router.