RFC 1122, "Requirements for Internet Hosts - Communication Layers", October 1989

Note: This RFC has been updated by RFC 1349, RFC 4379, RFC 5884, RFC 6093, RFC 6298, RFC 6633, RFC 6864, RFC 8029, RFC 9293

Errata ID: 4464
Status: Held for Document Update
Type: Editorial
Publication Format(s) : TEXT
Reported By: Michael Welzl
Date Reported: 2015-09-04
Held for Document Update by: Brian Haberman
Date Held: 2015-09-14

Section 4.2.4.2 says:

            It not required, but the application SHOULD be able to
            change the TOS during the connection lifetime.  TCP SHOULD

It should say:

            It is not required, but the application SHOULD be able to
            change the TOS during the connection lifetime.  TCP SHOULD

Notes:

just a typo (missing "is" as second word)

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