Hi, I am quite confused after reading this thread, so I had to go back to this first message:
"Jason Sterne (Nokia)" <[email protected]> wrote: > Hi Jeff, > > One topic that came up during the IETF 116 NETMOD meeting was > backwards compatibility. > > >From what I understand, a leaf (e.g. unknown-flags) that uses the > >unknown-bits typedef would never change its definition in YANG. It > >would always be defined as unknown-bits with all 64 bit definitions > >even as more and more bits become "known". *But* the system would > >suddenly stop reporting bit-0, then bit-1 in that unknown-flags leaf > >as those bits become known. > > Strictly speaking, that should probably be considered an NBC change Nothing has changed in the data model, so there is no way to mark the _data model_ as NBC. The server follows the data model, and reports which bits it doesn't understand. With software updates, this may change over time. This is simply the semantics of this state leaf. /martin _______________________________________________ netmod mailing list [email protected] https://www.ietf.org/mailman/listinfo/netmod
