RFC 3168, "The Addition of Explicit Congestion Notification (ECN) to IP", September 2001Source of RFC: tsvwg (tsv)
Errata ID: 4997
Publication Format(s) : TEXT
Reported By: C. M. Heard
Date Reported: 2017-04-17
Rejected by: Martin Duke
Date Rejected: 2020-04-20
Section Header says:
Updates: 2474, 2401, 793
It should say:
Updates: 2474, 2460, 2401, 793
RFC 3168 updates RFC 2460 but does not indicate this in its header block.
Specifically, Section 5.3 of RFC 3168 requires that the ECN field of a reassembled IPv6 datagram be calculated from the ECN fields of all of the fragments, rather than simply copying it from the initial fragment as specified in RFC 2460.
There are other missing Updates: fields; see e.g. Erratum 2660.
This is a borderline case, as RFC 2474 already changes the semantics of this field and is correctly listed in the Updates field. Anyway, this would be "Hold for Document Update", but RFC 2460 has already been updated with RFC 8200.