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Transport Layer - Freie Universität Berlin

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DCCP Generic Header<br />

● Ports<br />

● 16 bit as used in TCP, UDP<br />

● Data Offset<br />

● Start of application data area in 32 bit words<br />

● CCVal<br />

● Determines congestion control method<br />

● CsCov<br />

● Determines the checksum coverage<br />

● Header and options are always included in the checksum<br />

● Checksum<br />

● Based on TCP/IP checksum algorithm<br />

● Covers all, some, or none of application data depending on CsCov<br />

Univ.-Prof. Dr.-Ing. Jochen H. Schiller ▪ cst.mi.fu-berlin.de ▪ Telematics ▪ Chapter 8: <strong>Transport</strong> <strong>Layer</strong><br />

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