End Systems

5857
Pipelined Reliable Data Transfer Protocols
Pipelined Reliable Data Transfer Protocols

Protocol rdt3.0 is a functionally correct protocol, but it is doubtful that anyone would be happy with its performance, especially in todays high-speed networks. At the heart of rdt.3.0s performance problem is the fact that it is a stop-and-wait protocol.

Tags protocol, propagation delay, end systems, routers, data packet
3030
Connection-Oriented Transport - TCP
Connection-Oriented Transport - TCP

We have studied the underlying principles of reliable data transfer, let's examine TCP - the Internet's transport-layer, connection-oriented, reliable transport protocol. In this section, we'll see that in order to provide reliable data transfer, TCP relies on many of the underlying

Tags data transfer, virtual circuit, end systems, routers, datagrams, client process, server process
6088
Round-Trip Time Estimation and Timeout
Round-Trip Time Estimation and Timeout

TCP, like our rdt protocol in Principles of Reliable Data Transfer, uses a timeout/retransmit mechanism to recover from lost segments. Though this is conceptually simple, many subtle issues arise when we implement a timeout/retransmit mechanism in an actual protocol such

Tags segments, routers, ewma, end systems, rdt protocol
7404
TCP Congestion Control
TCP Congestion Control

In this section we return to our study of TCP. As we learned in Connection-Oriented Transport TCP, TCP provides a reliable transport service between two processes running on different hosts. Another key component of TCP is its congestion-control mechanism. As indicated

Tags network congestion, end systems, ip layer, congestion window, self-clocking
2610
Network Service Models
Network Service Models

Before looking into the network layer, let's take the wider view and examine the different types of service that might be offered by the network layer. When the transport layer at a sending host transmits a packet into the network (that is, passes it down to the network layer at

Tags network layer, transport layer, end systems
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