RFC 4960, "Stream Control Transmission Protocol", September 2007

Note: This RFC has been obsoleted by RFC 9260

Note: This RFC has been updated by RFC 6096, RFC 6335, RFC 7053, RFC 8899

Errata ID: 4071
Status: Held for Document Update
Type: Editorial
Publication Format(s) : TEXT
Reported By: Federico Zuccardi Merli
Date Reported: 2014-08-06
Held for Document Update by: Martin Stiemerling
Date Held: 2015-11-02

Section 6.1 says:

      However, regardless of the value of rwnd (including if it is 0),
      the data sender can always have one DATA chunk in flight to the
      receiver if allowed by cwnd (see rule B below).  This rule allows
      the sender to probe for a change in rwnd that the sender missed
      due to the SACK having been lost in transit from the data receiver
      to the data sender.

It should say:

[empty]

Notes:

The whole paragraph is a one-to-one repetition of the final part of first paragraph of Rule A).
The position of the paragraph does not affect meaning, but the repetition hinders readability.

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