Network Concept

Network Concept

Networking Techniques

• Switch Network

Networking Techniques

Circuit Switching

Networking Techniques

• Message switching

Networking Techniques

• Packet switching

Networking Techniques• Cell switching (example ATM)

– Similar to packet switching

Networking Techniques

• Broadcast Network– Similar to packet radio (weather station)

Routing

• Types of routing– Adaptive routing/dynamic– Broadcast routing

Network Ownership

• Public network

• Virtual Public Network (VPN)

• Packet distribution Network PDN

• National Science Foundation Network (NSFnet)

Network type

• LAN

• WAN

• Intranet

• Internets

• Access

Network type

• LAN

Network type• WAN

Network type

Access

Distributed system

• Characteristic of distributed system– Modularity- component are simple– System performance- speed– Local control- users immediate access– Client server – access to several computers– Transparent-capability to hide data

Distributed systemTypes of distributed system

– Distribution by location

Distributed system

Types of distributed system– Distribution by function

Distributed system• Types of distributed system

– Distribution by control- Management issues– Distribution by processing

• Vertical

Distributed system• Types of distributed system

– Distribution by processing• Hierarchal• Horizontal distributed system

Distributed system• Types of distributed system

– Distribution by processing

Distributed system• Types of distributed system

– Peer computer on the internet

Implementation of Distributed system

• File handling

• Data distribution

• Distributed database

• Incompatibilty problems

Data Distribution

Data Distribution