CDN Service Interaction Management via Layered Virtual Machine
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Solution Overview
Problem
Content delivery networks (CDNs) face challenges in efficiently managing content distribution, caching, and peering policies, leading to suboptimal performance and increased costs due to the complexity of interactions between various services and intermediaries in the network.
Innovation Solution
A framework for content delivery networks that includes a layered virtual machine (LVM) and request collection lattice (RCL) to manage service interactions, caching, and peering policies, enabling efficient content distribution and dynamic configuration of services within the CDN.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional CDN architectures are used to manage content distribution, then basic content delivery is achieved, but service interaction complexity increases and performance deteriorates
Solution Approach 1:
The patent segments the CDN system into distinct functional layers: origin servers, edge servers, and client devices. Each layer operates independently with defined interfaces, reducing service interaction complexity while maintaining delivery efficiency. Edge servers cache content locally, eliminating the need for complex real-time coordination between all components.
Solution Approach 2:
The patent introduces DNS-based resolution as an intermediary mechanism that simplifies service interactions. Instead of direct complex peer-to-peer communications between CDN components, all content requests are routed through DNS resolution at edge servers, which act as mediators between clients and origin servers, reducing overall system complexity.
2Speed
If content is cached at edge servers to reduce latency, then content delivery speed improves, but cache management complexity increases
Solution Approach 1:
The patent implements preliminary content placement at edge servers during off-peak hours based on predictive analytics of content popularity. This preliminary action reduces real-time cache management complexity during peak delivery periods, as frequently accessed content is pre-positioned at edge locations, maintaining high speed while simplifying active cache management.
3Productivity
If multiple peering policies are implemented to optimize content distribution, then content delivery performance improves, but policy management complexity increases
Solution Approach 1:
The patent implements local quality by allowing each edge server to apply simplified peering policies specific to its local context and content type, rather than enforcing complex global policies. This enables efficient content distribution adapted to local conditions while reducing the complexity of centralized policy management.
Data Source
AI summary
A computer-implemented method operable in a content delivery network (CDN), includes receiving a request a service in said CDN; determining a particular classification of an Internet Protocol (IP) address associated with said request, said determining using a first function that maps IP addresses to one or more classifications, said particular classification being one of said one or more classifications; and processing said request based on said particular classification of said IP address associated with said request. A location-specific response to a request may be based on a geographic location associated with said IP address associated with said request.