Some network apps r E-mail r Internet telephone r Web r Real-time video r Instant messaging conference r Remote login r Massive parallel r P2P file sharing computing r Multi-user network r games r r Streaming stored r video clips 2:Application Layer 42: Application Layer 4 Some network apps r E-mail r Web r Instant messaging r Remote login r P2P file sharing r Multi-user network games r Streaming stored video clips r Internet telephone r Real-time video conference r Massive parallel computing r r r