RFC 1337, "TIME-WAIT Assassination Hazards in TCP", May 1992

Errata ID: 7149
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Michael Tüxen
Date Reported: 2022-10-06
Verifier Name: RFC Editor
Date Verified: 2022-10-06

Section 2.2 says:

As a result, B sends segment 6, an ACK for sequence = 640, which
is 40 beyond any data sent by A.  Assume for the present that this
ACK arrives at A *after* A has sent segment 7a, the next full data
segment.  In that case, the ACK segment 8a acknowledges data that
has been sent, and the error goes undetected.  Another possible
continuation after segment 6 leads to hazard H3, shown below.

It should say:

As a result, B sends segment 6, an ACK for sequence = 640, which
is 40 beyond any data sent by A.  Assume for the present that this
ACK arrives at A *after* A has sent segment 7a, the next full data
segment.  In that case, the ACK segment 8a acknowledges data that
has been sent, and the error goes undetected.  Another possible
continuation after segment 6 leads to hazard H2, shown below.

Notes:

The forward reference in the last sentence should be H2, not H3.

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