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Status: Verified (1)

RFC 761, "DoD standard Transmission Control Protocol", January 1980

Note: This RFC has been obsoleted by RFC 793, RFC 7805

Errata ID: 8226
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Mattia Marchese
Date Reported: 2025-01-01
Verifier Name: RFC Editor
Date Verified: 2025-01-06

Section 3.1 says:

Control Bits:  8 bits (from left to right):

    URG:  Urgent Pointer field significant
    ACK:  Acknowledgment field significant
    EOL:  End of Letter
    RST:  Reset the connection
    SYN:  Synchronize sequence numbers
    FIN:  No more data from sender

It should say:

Control Bits:  6 bits (from left to right):

    URG:  Urgent Pointer field significant
    ACK:  Acknowledgment field significant
    EOL:  End of Letter
    RST:  Reset the connection
    SYN:  Synchronize sequence numbers
    FIN:  No more data from sender

Notes:

The "control bits" field includes 6 bits as listed, while the line says they are 8 bits.
I might be mistaken, if so please tell me, but I assume it is a typing error due to distraction.

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