Computer Networks – Transport Layer Transport Layer3-95 Fixed congestion window (1) First case: WS/R > RTT + S/R: ACK for first segment in window returns before window's worth of data sent latency = 2RTT + O/R
{"Image DocumentName": "Transport services and protocols", "Image ImageDescription": "provide logical communication between app processes running on different hosts. transport protocols run in end systems. send side: breaks app messages into segments, passes to network layer. rcv side: reassembles segments into messages, passes to app layer. more than one transport protocol available to apps. Internet: TCP and UDP. application. transport. network. data link. physical. network. data link. physical. network. data link. physical. network. data link. physical. logical end-end transport. network. data link. physical. network. data link. physical. application. transport. network. data link. physical. Transport Layer.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}