Transport Layer - Freie Universität Berlin

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SCTP DATA Chunk ● U: Indicates unordered DATA chunk, ignore Stream Sequence Number ● B E 1 0 first fragment of a user message 0 0 middle fragment of a user message 0 1 last fragment of a user message 1 1 Unfragmented user message 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 Type = 0 Reserved U B E Length Transmission Sequence Number Stream Identifier Stream Sequence Number Payload Protocol Identifier User Data Univ.-Prof. Dr.-Ing. Jochen H. Schiller ▪ cst.mi.fu-berlin.de ▪ Telematics ▪ Chapter 8: Transport Layer 8.132
SCTP DATA Chunk ● Transmission Sequence Number ● Sequence number for this DATA chunk ● Stream identifier ● Identification of data stream to which the following data belongs ● Stream Sequence Number ● Sequence number of the following user data within the stream ● When a user message is fragmented all fragments must carry the same stream sequence number ● Payload Identifier ● Identifies application layer protocol ● Not used by SCTP but by end or intermediate systems Univ.-Prof. Dr.-Ing. Jochen H. Schiller ▪ cst.mi.fu-berlin.de ▪ Telematics ▪ Chapter 8: Transport Layer 8.133
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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.-
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UDP Header ● Source Port, Destina
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User Datagram Protocol (UDP) Socket
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Example: Java Client (UDP) import j
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Transmission Control Protocol (TCP)
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TCP as a Reliable Connection If the
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TCP: Overview RFCs: 793, 1122, 1323
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Socket Programming in TCP Server si
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Socket programming in TCP Server (o
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Example: Java Server (TCP) import j
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TCP-based Applications File transfe
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The TCP Header ● Source and Desti
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TCP Pseudo Header ● Checksum: ser
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TCP Connection Management: 1. Conne
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TCP Connection Management: 2. Data
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TCP Connection Management TCP clien
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States during a TCP Session State D
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Timer Management with TCP ● TCP u
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Timer Management with TCP: Example
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Timer Management with TCP: Retransm
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Transmission Control Protocol (TCP)
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TCP Sender Events ● Data received
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TCP Retransmission Scenarios SendBa
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TCP ACK generation [RFC 1122, RFC 2
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TCP Flow Control: Sliding Window
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Page 85 and 86: Principles of Congestion Control
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Page 93 and 94: Case study: ATM ABR congestion cont
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Page 97 and 98: TCP Slow Start ● When connection
Page 99 and 100: TCP Slow Start ● When connection
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Page 103 and 104: Fast Retransmit Timeout Host A Time
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Page 107 and 108: Summary: TCP Congestion Control ●
Page 109 and 110: Transmission Control Protocol (TCP)
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
Page 131: SCTP Chunks ● Type (Examples) ●
Page 135 and 136: Datagram Congestion Control Protoco
Page 137 and 138: DCCP vs. TCP/UDP ● Choice of cong
Page 139 and 140: DCCP Generic Header ● Ports ● 1
Page 141 and 142: DCCP State Diagram a la RFC +------
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Transport Layer - Freie Universität Berlin

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