Software Defined Network for Remote Multi-Layer Peering
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Solution Overview
Problem
Conventional peering methods in communication networks require physical co-location of network devices for interconnection, limiting flexibility and scalability, especially in public peering where capacity is shared among multiple networks.
Innovation Solution
The implementation of a software-defined network (SDN) approach enables a distributed multi-layer inter-exchange (MLIX) that allows remote peering by coupling devices across different layers (L2, L1, L0) and dynamically switches between connection types, optimizing traffic distribution based on traffic volume, service agreements, and other factors without the need for direct fiber connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional peering methods require physical co-location of network devices, then direct interconnection is achieved, but flexibility and scalability are limited
Solution Approach 1:
The patent introduces an intermediary system that mediates between remote network devices, enabling peering connections without direct physical co-location. The intermediary manages the complex routing and protocol translation between autonomous systems, allowing devices to be geographically separated while maintaining the functionality of direct interconnection.
Solution Approach 2:
The patent replaces the mechanical requirement of physical co-location with a software-based solution. Instead of requiring devices to be physically connected at the same location, the system uses software-defined networking and protocol translation to achieve the same interconnection objectives remotely, substituting physical constraints with logical connectivity.
2Adaptability or versatility
If public peering uses shared switch fabric, then capacity is shared among multiple networks, but available capacity per network is reduced
Solution Approach 1:
The patent segments the shared switch fabric into multiple virtual channels or logical pathways, allowing different networks to have dedicated capacity allocations within the shared infrastructure. This segmentation enables multiple networks to interconnect while each network receives guaranteed capacity, resolving the contradiction between sharing and capacity availability.
3Quantity of substance
If private peering uses point-to-point link, then dedicated capacity is provided, but co-location is required
Solution Approach 1:
The patent replaces the mechanical point-to-point physical link requirement with a software-defined connection that can traverse remote infrastructure. The system uses protocol translation and intermediary devices to provide dedicated capacity guarantees while allowing network devices to be located at different sites, thus substituting physical co-location requirements with logical dedicated pathways.
Data Source
AI summary
A software defined network, in accordance with some examples of the disclosure, may be used to optimizing traffic across a multi-layer inter-exchange for applications like automated private peering by incorporating packet switching along with OTN and/or optical switching into a converged system. Participants in private peering may have ports into the multi-layer inter-exchange, some to the L2 fabric which supports multi-tenant peering and some to the L1 or L0 fabric for higher-performance private peering.