Peer-to-Peer Service Model The communication process can be broken into layers. At each layer, two or more peer processes execute a protocol that delivers the service to the layer above. Peer-to-peer processes executes layer n protocol to provide services to layer n+1. Local Remote Layer n+1 Peer process Peer process (1) ⇅ SDU (3) ⇅ … Continue reading Automatic Repeat Request Protocols