Passive Optical LAN Multi-Service Bearer via SD-LAN Sharding
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Solution Overview
Problem
In traditional LANs, ensuring operating bandwidth for each service often requires separate network deployments, which complicates overall management.
Innovation Solution
A method and system for implementing a multi-service bearer in a passive optical LAN, utilizing a three-layer point-to-multipoint star topology with software-defined LANs (SD-LANs) to dynamically partition and manage bandwidth across different services, allowing for efficient allocation and monitoring of bandwidth resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate independent networks are deployed for each service to ensure operating bandwidth, then service bandwidth guarantee is improved, but network management complexity increases
Solution Approach 1:
The patent merges multiple service networks into a unified passive optical LAN infrastructure. Different services (teaching, office, monitoring, etc.) share the same physical optical network, eliminating the need for separate independent networks for each service while maintaining bandwidth guarantees through virtualization and QoS mechanisms.
Solution Approach 2:
The optical network is designed with multi-functionality to support diverse services simultaneously. The network can dynamically allocate bandwidth to different services based on demand, allowing a single network infrastructure to perform multiple functions that previously required separate dedicated networks.
2Ease of operation
If multiple services are integrated into a unified campus bearer network, then ease of management is improved, but service isolation and bandwidth guarantee may deteriorate
Solution Approach 1:
The patent segments the unified optical network into multiple virtual LANs (VLANs) and service domains. Logical segmentation is implemented through software-defined networking, creating isolated virtual networks for different services while maintaining a unified physical infrastructure. This allows centralized management while preserving service isolation.
Solution Approach 2:
The patent introduces a broadband remote access server (BRAS) and software-defined networking controller as intermediary components. These intermediaries manage bandwidth allocation, service isolation, and quality of service policies, ensuring that service guarantees are maintained even within a unified network architecture.
Data Source
AI summary
The present disclosure relates to the technical field of campus local area networks (LANs), and particularly discloses a method and system for implementing multi-service bearer in a passive optical LAN (POL). The method includes: step S1: constructing a POL, and accessing an entire campus network at a bandwidth of Gigabit according to a point-to-multipoint star topology including three layers: a core layer, a convergence layer, and an access layer, to form a 10 Gbit backbone, wherein an optical network terminal enters a room and is deployed according to such a manner that one classroom or functional room has one terminal mode; step S2: planning and managing the entire POL, defining a plurality of LANs through software definition (SD-LAN), wherein different LANs bear different services; and step S3: allocating different service bandwidths to different LANs through a sharding mechanism of the PON, and the like.