On 13-Aug-21 03:38, Templin (US), Fred L wrote: ... > RFC7526 Section 7 says: > > "Redelegation of this prefix for any use requires justification via an IETF Standards > Action [RFC5226]." Exactly. So if a document proposing to use this prefix comes up up for discussion as an IETF Standards Track document, we can debate the justification. It can't be decided in the abstract. Personally I feel that John Kristoff's operational evidence suggests that it's too soon to re-use this prefix on the live network; it was only deprecated 6 years ago. Of course, that would be part of the debate. Regards, Brian