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The maximum payload of a TCP segment is 65,495 bytes. Why was such a strange
number chosen?
in Computer Networks by Boss (11k points) | 56 views

1 Answer

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The max length of IP datagram is 65,535 Bytes which includes 20 Bytes fixed header(min) and IP payload. So the max size of IP payload(TCP segment) could be 65,535-20=65,515 Bytes

TCP header is fixed 20 Bytes(min). So max TCP payload is 65,515-20=65,495 Bytes
by Loyal (5.2k points)

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