1. Content Aware Overlay Networks
Theodore Zahariadis
FMN Cluster Meeting
Trento, 14 April 2011

2. Overlays Requirements
Heterogeneity in the network nodes capabilities
Heterogeneity in topology/bandwidth capabilities
Heterogeneity in processing & storage capabilities
Heterogeneity in the delivery/streaming requirements
Heterogeneity in the security requirements
Heterogeneity in the network/domain administration
We need an abstract universal representation of nodes and virtual grouping of collaborating nodes to create homogeneous sub-networks.

3. Content-Aware Network Overlays
Network Layers
Distributed Content/Services Aware Overlay
Information
Overlay
Searching,
Network Monitoring,
Cache Optimization
Content Discovery & Caching, Delivery
IP routing
Service/Network
Provider Infrastructure
P2P content
Streaming & Delivery
P2P
Grouping
Content
Server 1
Content/Service
Prosumer A
Content/Service
Prosumer C
Content/Service
Prosumer B

4. Future Media Internet Architecture Reference Network Architecture
External
Servers
e.g. ALTO
Cache Locator & Optimization
Network Topology & Traffic
Optimization
Search Engine
Information
Overlay
Caching
Process
Caching
Delivery
Discovery
Delivery
Caching
Process
Delivery
Discovery
Content/Service
Distributed Overlay
Caching
Caching
Delivery
Delivery
Service/Network
Infrastructure
FMI-EP
FMI-EP
Content
Server 1
Content/Service
Prosumer A
Content/Service
Prosumer C
Content/Service
Prosumer B

5. COAST Reference Network Architecture
External
Servers
e.g. ALTO
Publishing, Searching,
Network Monitoring,
Cache Optimization
Search Engine
Cache
Optimizer
Cache Locator
Publishing
Front-End
Network
Monitor
Information
Overlay
Content Discovery (DPI), Adaptation, Caching, Hybrid Delivery CN CN CN CN
Content/Service
Distributed Overlay
IP routing
Service/Network
Infrastructure
P2P content
Streaming & Delivery, Caching
CEP
CEP
CEP
Content
Server 1
Content/Service
Prosumer C
Content/Service
Prosumer B
Content/Service
Prosumer A

6. COAST Architecture Implementation
External
Servers
e.g. ALTO
Search Engine
Cache
Optimizer
Cache Locator
Publishing
Front-End
Network
Monitor
Information
Overlay
Discovery/DPI
Tier 1 – Caching
Adaptation & Enrichment CN CN CN CN
Content/Service
Distributed Overlay
Automatic
Publishing
Service/Network
Infrastructure
Tier 0 – Caching
P2P Streaming
CEP
CEP
CEP
Content
Server 1
Content/Service
Prosumer C
Content/Service
Prosumer B
Content/Service
Prosumer A

7. COAST Network Architecture Implementation
External
Servers
e.g. ALTO
Publishing, Searching,
Network Monitoring,
Cache Locator & Optimization
Search Engine
Cache
Optimizer
Cache Locator
Publishing
Front-End
Network
Monitor
Information
Overlay
Content Discovery, Caching, Adaptation & Enrichment CN CN CN CN
Content/Service
Distributed Overlay
IP routing
Automatic
Publishing
Service/Network
Infrastructure
P2P Streaming,
Caching
CEP
CEP
CEP
Content
Server 1
Content/Service
Prosumer C
Content/Service
Prosumer B
Content/Service
Prosumer A

8. Thank You
Theodore Zahariadis