Multi-Level Resource Reservation for Bounded Latency
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Solution Overview
Problem
Existing peer-to-peer protocols in networks are not designed for mixed bridged/routed environments and are complicated by overlay technologies, failing to provide guaranteed quality-of-service (QoS) for audio, video, and media streams due to unmanaged latency and jitter.
Innovation Solution
A multi-level resource reservation system that creates a continuous chain of configured ports across bridges and routers, using peer-to-peer protocols to distribute resource reservations without a centralized controller, ensuring guaranteed jitter and bounded latency by propagating accumulated latency and jitter through network layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing L2 or L3 peer-to-peer protocols are used in mixed bridged/routed environments, then protocol simplicity is maintained, but quality-of-service guarantees (latency and jitter) cannot be provided
Solution Approach 1:
The patent segments the resource reservation process into multiple hierarchical levels (L2 bridge level and L3 router level). Each level handles reservations independently within its domain, with the L2 level managing bridge port reservations and the L3 level managing router interface reservations. This segmentation allows existing simple peer-to-peer protocols to operate at each level while providing comprehensive QoS guarantees across the entire mixed environment.
Solution Approach 2:
The patent adds a hierarchical dimension to the traditional flat peer-to-peer reservation model by introducing multi-level reservations across L2 and L3 layers. This dimensional transformation enables the system to maintain protocol simplicity at each individual level while achieving complex QoS guarantees through the interaction of multiple levels, effectively resolving the contradiction between simplicity and reliability.
2Reliability
If centralized controllers are used to manage resource reservations, then quality-of-service guarantees can be provided, but system complexity and control overhead increase
Solution Approach 1:
The patent enables network elements (bridges and routers) to perform resource reservations autonomously through distributed peer-to-peer protocols at each hierarchical level. L2 bridges independently reserve resources on their ports, and L3 routers independently reserve resources on their interfaces, without requiring centralized controller intervention. This self-service approach maintains QoS guarantees while eliminating the complexity of centralized control architecture.
Solution Approach 2:
By segmenting the control function into distributed peer-to-peer protocols operating independently at L2 and L3 levels, the patent eliminates the need for a centralized controller. Each network element serves itself by autonomously making reservations based on local resource availability, thereby providing QoS guarantees without centralized control overhead.
3Reliability
If resource reservations are made at multiple network layers, then comprehensive quality-of-service guarantees are achieved, but coordination between layers becomes complex
Solution Approach 1:
The patent cleanly segments the multi-level reservation process into independent L2 and L3 components, where each level operates with its own peer-to-peer protocol without requiring complex inter-layer coordination. The L2 level handles bridge port reservations and the L3 level handles router interface reservations independently, simplifying the overall system architecture while achieving comprehensive QoS guarantees.
Solution Approach 2:
The patent employs a universal peer-to-peer reservation protocol design that functions effectively at both L2 and L3 levels. This multi-functional approach allows the same protocol mechanisms to operate across different network layers, eliminating the need for layer-specific coordination complexity while providing end-to-end QoS guarantees through the hierarchical structure.
Data Source
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AI summary
The present disclosure is directed to a multi-level resource reservation system that obviates one or more of the problems due to limitations and disadvantages of the related art. The multi-level resource reservation system creates, or modifies existing, peer-to-peer protocol(s) to complete a continuous chain of configured ports to support QoS feature(s), e.g., bound latency and guaranteed jitter, for a data flow that traverses an arbitrary sequence of bridges, routers, and virtual links.