CDN Technologies

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CDN Technologies by Mind Map: CDN Technologies

1. CDNi

1.1. Standard (ietf)

1.1.1. Internet-Draft

1.1.1.1. Framework for CDN Interconnection http://datatracker.ietf.org/doc/draft-ietf-cdni-framework/

1.1.1.2. Content Distribution Network Interconnection (CDNI) Problem Statement http://datatracker.ietf.org/doc/draft-ietf-cdni-problem-statement/

1.1.1.3. Content Distribution Network Interconnection (CDNI) Requirements http://datatracker.ietf.org/doc/draft-ietf-cdni-requirements/

1.1.1.4. Use Cases for Content Delivery Network Interconnection http://datatracker.ietf.org/doc/draft-ietf-cdni-use-cases/

1.2. Resources

1.2.1. Cisco

1.2.1.1. CDN Federation: Lessons from the CDN Federation Pilot Ph2, 2012

2. Request Routing

2.1. "Closest" to User

2.1.1. Global CDN

2.1.1.1. Using Local DNS Server IP Address (Akamai)

2.1.2. Operator On-Net CDN

2.1.2.1. Static Configuration (Zone File): User Subnet & Edge Server Subnet, per Zone

2.1.2.2. Dynamic/Automatic

2.1.2.2.1. Passive Listening to Routing Protocol Directly

2.1.2.2.2. Active Probing of Underlining Network

2.1.2.2.3. Using ALTO Service

2.2. Load-based Routing (Edge Server Load Monitoring)

2.3. Service-aware Routing (HTTP, RTSP, RTMP etc.)

2.4. Content-aware Routing (Requested URI Hashing)

3. Content Placement to Edge Server

3.1. Static Pre-Positioning

3.1.1. KT IPTV CDN

3.2. Dynamic Caching (Cache Miss/Cache Fill)

3.2.1. Single Source

3.2.2. Multiple Sources

3.2.2.1. Multiple HTTP ???

3.2.2.2. BitTorrent (Chunk)

3.2.2.2.1. Velocix

4. Content Delivery to User Device

4.1. HTTP Download

4.2. HTTP Progressive Download

4.2.1. YouTube

4.3. HTTP Paced Progressive Download

4.4. HTTP Adaptive Streaming (Chunk)

4.4.1. Microsoft HTTP Smooth Streaming (HSS)

4.4.1.1. Netflix

4.4.2. Adobe HTTP Dynamic Streaming (HDS)

4.4.3. Apple HTTP Live Streaming (HLS)

4.4.4. DASH

4.5. RTSP

4.6. RTMP

5. Content Acquisition into CDN

5.1. Pre-Ingest (Pre-Fetching): Content is uploaded to CDN acquisition server before it is first requested by an user

5.2. Dynamic Acquisition (Reverse Proxy): Content is downloaded from CSP's origin server when first requested by an user