TCP header flag field values Flashcards

1
Q

CWR - Congestion Window Reduced

A

manage transmission over congested links

see RFC 3168

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2
Q

ECE - ECN Echo (Explicit Congestion Notification)

A

manage transmission over congested links

see RFC 3168

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3
Q

URG - Urgent

A

indicates urgent data

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4
Q

ACK - Acknowledgement

A

Acknowledged synchronization or shutdown request

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5
Q

PSH - Push

A

Indicates need to push data immediately to application

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6
Q

RST - Reset

A

Causes immediate disconnect of TCP session

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7
Q

SYN - Synchronization

A

Requests synchronization with new sequencing numbers

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8
Q

FIN - Finish

A

Requests graceful shutdown of TCP session

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