Transport Layer - Freie Universität Berlin

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TCP Flow Control: Sliding Window, Example Application writes 2 KB Application writes 2 KB Sender is blocked Sender can transfer up to 2 KB Sender Receiver 2K SEQ = 0 ACK=2048 WIN=2048 2K SEQ = 2048 ACK=4096 WIN=0 ACK=4096 WIN=2048 1K SEQ = 4096 Univ.-Prof. Dr.-Ing. Jochen H. Schiller ▪ cst.mi.fu-berlin.de ▪ Telematics ▪ Chapter 8: Transport Layer Receiver buffer 0 4K Empty 2K Full Application reads 2 KB 1K 2K 2K 8.80
“Silly Window” Syndrome Header Header 1 byte Receiver buffer is full Application reads 1 byte Space for 1 byte Transfer segment for window actualization New byte arrives Receiver buffer is full Solution of Clark: The receiver must wait with the next window actualization until the receiver buffer again is reasonably empty. Univ.-Prof. Dr.-Ing. Jochen H. Schiller ▪ cst.mi.fu-berlin.de ▪ Telematics ▪ Chapter 8: Transport Layer 8.81
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Telematics Chapter 8: Transport Lay
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Design Issues Univ.-Prof. Dr.-Ing.
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Services Provided to the Upper Laye
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Transport Service Primitives ● Pr
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Transport Service Primitives ● A
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Transport Protocol: Addressing ●
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Transport Protocol: Addressing ●
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Transport Protocol: Connection Esta
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Transport Protocol: Connection Rele
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Transport Protocol: Connection Rele
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Transport Protocol: Multiplexing
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Transport Protocol: Crash Recovery
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Transport Protocols in the TCP/IP R
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User Datagram Protocol (UDP) Univ.-
Page 29 and 30: UDP Header ● Source Port, Destina
Page 31 and 32: User Datagram Protocol (UDP) Socket
Page 33 and 34: Example: Java Client (UDP) import j
Page 35 and 36: Transmission Control Protocol (TCP)
Page 37 and 38: TCP as a Reliable Connection If the
Page 39 and 40: TCP: Overview RFCs: 793, 1122, 1323
Page 41 and 42: Socket Programming in TCP Server si
Page 43 and 44: Socket programming in TCP Server (o
Page 45 and 46: Example: Java Server (TCP) import j
Page 47 and 48: TCP-based Applications File transfe
Page 49 and 50: The TCP Header ● Source and Desti
Page 51 and 52: TCP Pseudo Header ● Checksum: ser
Page 53 and 54: TCP Connection Management: 1. Conne
Page 55 and 56: TCP Connection Management: 2. Data
Page 57 and 58: TCP Connection Management TCP clien
Page 59 and 60: States during a TCP Session State D
Page 61 and 62: Timer Management with TCP ● TCP u
Page 63 and 64: Timer Management with TCP: Example
Page 65 and 66: Timer Management with TCP: Retransm
Page 73 and 74: TCP Sender Events ● Data received
Page 75 and 76: TCP Retransmission Scenarios SendBa
Page 77 and 78: TCP ACK generation [RFC 1122, RFC 2
Page 79: TCP Flow Control: Sliding Window
Page 83 and 84: Flow Control: Network Bottlenecks C
Page 85 and 86: Principles of Congestion Control
Page 87 and 88: Causes/costs of congestion: Scenari
Page 89 and 90: Causes/costs of congestion: Scenari
Page 91 and 92: Approaches towards congestion contr
Page 93 and 94: Case study: ATM ABR congestion cont
Page 95 and 96: TCP congestion control: additive in
Page 97 and 98: TCP Slow Start ● When connection
Page 99 and 100: TCP Slow Start ● When connection
Page 101 and 102: Refinement: Inferring loss ● Afte
Page 103 and 104: Fast Retransmit Timeout Host A Time
Page 105 and 106: Fast Retransmit and Fast Recovery
Page 107 and 108: Summary: TCP Congestion Control ●
Page 111 and 112: TCP Futures: TCP over “long, fat
Page 113 and 114: TCP Fairness ● Fairness goal: if
Page 115 and 116: Fairness (more) ● Fairness and UD
Page 117 and 118: TCP in Wireless Networks ● Theore
Page 119 and 120: TCP and Security: SYN-Flood ● Dur
Page 121 and 122: Some Tools Univ.-Prof. Dr.-Ing. Joc
Page 123 and 124: Some Tools ● TTCP - Test TCP ●
Page 125 and 126: Stream Control Transmission Protoco
Page 127 and 128: SCTP Multi-Homing ● Ability for a
Page 129 and 130: SCTP Packet Format ● Common Heade
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SCTP Chunks ● Type (Examples) ●
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SCTP DATA Chunk ● Transmission Se
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Datagram Congestion Control Protoco
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DCCP vs. TCP/UDP ● Choice of cong
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DCCP Generic Header ● Ports ● 1
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DCCP State Diagram a la RFC +------
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Transport Layer - Freie Universität Berlin

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