Changes since last IETF: Added a sentence about multi-access links. Changed the "Reporting Approved Rate" option from a "Possible Use" in Appendix D to a required use in Section 3.1, to allow routers and receivers some protection against misbehaving senders. Clarifications and corrections in response to Bob Briscoe’s feedback. Added rate encoding and one-way hash function from Bob Briscoe’s document as alternate possibilities. Added Appendix E about Sections 1-3 of Bob Briscoe's document. |