Juergen Schoenwaelder <[email protected]> writes: > On Wed, Apr 17, 2019 at 09:35:51PM +0200, Kristian Larsson wrote: >> >> I wonder though, isn't ipX-address-and-prefix-length the clearer name, or if >> we do want to shorten then ipX-address-and-plen. I think Martin stated the >> case for ipX-address-and-prefix but that is IMHO not the way this is >> typically perceived by people. >> >> 1.2.3.4/24 >> ^^^^^^^----- ipv4 address >> ^^^-- ipv4 prefix length >> >> now, taking the prefix-length you know that 1.2.3 is the prefix but does >> that mean the above is an IPv4 address and a prefix? Or is it just that you >> can infer the prefix from the above? It's just different ways of looking at >> it. My experience tells me ipX-address-and-prefix-length is the clearer way >> of conveying what this is. >> > > I guess this is somewhat subjective. The prefix length is the number > used to convey what the prefix is. So you are effectively defining an > address and the prefix that this address belongs to. ;-)
Strictly speaking, what is being defined by the number is a subnet mask. > > Given that we already have ip-prefix (which does as well use a prefix > length to convey what the prefix is), it seems ip-address-and-prefix > is more consistent with the existing RFC 6991 definitions. Being > consistent with what we have was the main reason for me to prefer > ip-address-and-prefix. I am not in favour of adding this type. Having ip-prefix next to ip-address-and-prefix is confusing. Moreover, the most natural use for this type would be the address specification in the "ietf-ip" module, but we already have two leaves there: ip and prefix-length. Lada > > /js > > -- > Juergen Schoenwaelder Jacobs University Bremen gGmbH > Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany > Fax: +49 421 200 3103 <https://www.jacobs-university.de/> > > _______________________________________________ > netmod mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/netmod -- Ladislav Lhotka Head, CZ.NIC Labs PGP Key ID: 0xB8F92B08A9F76C67 _______________________________________________ netmod mailing list [email protected] https://www.ietf.org/mailman/listinfo/netmod
