Hi Oscar, It would seem otherwise be a backward compatible change since the range is less restrictive but would require a BIS version of the document.
Thanks, Acee > On Jan 27, 2026, at 8:22 AM, OSCAR GONZALEZ DE DIOS > <[email protected]> wrote: > > Dear RTWG colleagues and RFC 9067 authors, > > The yang model in 9067 allows to represent a prefix range list with > ip-prefix and a mask-lenght-lower and upper in each entry of the list. While > using the model to reconcile all the prefix-lists in my company's networks I > found that it was not possible to represent one corner case the exact > 0.0.0.0/0 (or the equivalent ::/0 in IPv6) . It would be ip-prefix 0.0.0.0/0 > mask-lenght-lower 0 and upper-length-lower 0, but unfortunately in the model > mask-length-upper needs to be at least 1 (cannot be 0). > > Would it be feasible to update the yang model to allow the > mask-length-upper to start with 0 and cover this use case (found in > operational networks)? > > Please find below the tree and current definition. > > | | +--rw prefixes > | | +--rw prefix-list* [ip-prefix mask-length-lower > | | mask-length-upper] > | | +--rw ip-prefix inet:ip-prefix > | | +--rw mask-length-lower uint8 > | | +--rw mask-length-upper uint8 > leaf mask-length-upper { > type uint8 { > range "1..128"; > } > must '../mask-length-upper >= ../mask-length-lower' { > error-message "The upper bound MUST NOT be less " > + "than lower bound."; > } > description > "Mask length range upper bound. It MUST NOT be less than > lower bound."; > } > } > > Best Regards, > > > Oscar Gonzalez de Dios > Technical Lead for SDN in Transport Networks > Telefonica CTIO Transport Network Unit > <Outlook-hdzxtpb2.png> > > > > Este mensaje y sus adjuntos se dirigen exclusivamente a su destinatario, > puede contener información privilegiada o confidencial y es para uso > exclusivo de la persona o entidad de destino. Si no es usted. el destinatario > indicado, queda notificado de que la lectura, utilización, divulgación y/o > copia sin autorización puede estar prohibida en virtud de la legislación > vigente. Si ha recibido este mensaje por error, le rogamos que nos lo > comunique inmediatamente por esta misma vía y proceda a su destrucción. > > The information contained in this transmission is confidential and privileged > information intended only for the use of the individual or entity named > above. If the reader of this message is not the intended recipient, you are > hereby notified that any dissemination, distribution or copying of this > communication is strictly prohibited. If you have received this transmission > in error, do not read it. Please immediately reply to the sender that you > have received this communication in error and then delete it. > > Esta mensagem e seus anexos se dirigem exclusivamente ao seu destinatário, > pode conter informação privilegiada ou confidencial e é para uso exclusivo da > pessoa ou entidade de destino. Se não é vossa senhoria o destinatário > indicado, fica notificado de que a leitura, utilização, divulgação e/ou cópia > sem autorização pode estar proibida em virtude da legislação vigente. Se > recebeu esta mensagem por erro, rogamos-lhe que nos o comunique imediatamente > por esta mesma via e proceda a sua destruição > _______________________________________________ > rtgwg mailing list -- [email protected] <mailto:[email protected]> > To unsubscribe send an email to [email protected] > <mailto:[email protected]>
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