IETF protocol
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5. The IESG thinks that this document extends an IETF protocol in a
way that requires IETF review and should therefore not be
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... are defined in RFC 2434 [2]), and for the case where an IETF protocol
is proposed to be changed or extended in an unanticipated way that
may be harmful to the normal usage of the protocol, but where the
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