Content Delivery Networks (CDNs): A Detailed Analysis of Different Architectures
Generator Research Limited
June 20, 2008 39 Pages - SKU: GS1829500
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| Content delivery network (CDNs) are intended to distribute bandwidth-intensive content like internet video over the internet. Popular services like hulu and BBC iPlayer used CDNs to distribute their content to users. This report uses a detailed network model and in-depth analysis to compare and contrast the four different strategies used by CDNs: (1) Hosted, no local cache (parasitic transit & paid-for transit); (2) Hosted, local caches; (3) Hybrid (P2P and local caches) and, most advanced, (4) Network Aware, Pure P2P.
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- Synopsis
- Subject Area
- Report Content
- Key Benefits
- Who Should Read this Report?
- Contributors
- Executive Summary
- Network Considerations: Internet
- Performance
- Cost
- Limited Capacity, Real Costs
- Long Links vs. Short Links
- Transit and Peering Agreements
- Transit Agreements
- Peering Agreements
- Content Delivery Networks: Architecture Options
- Core Delivery
- Edge Delivery
- End User Delivery
- Network Model
- Contention Ratio
- What the Contention Ratio Means
- Architectural Comparison
- Case 1a: Hosted, No Local Cache (Parasitic Transit)
- Case 1b: Hosted, No Local Cache (Paidfor Transit)
- Case 2: Hosted, Local Cache
- Case 3: Hybrid P2P
- P2P Network Operation
- Traffic Distribution
- Implications
- Case 4: Network Aware Pure P2P
- Summary: Impact Analysis
- Appendix
- Scenario: Home Environment
- Contention Ratio
- Amount of Time Spent Viewing Internet Television
- Timeshifted Viewing"
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