Re: [Cbor] Interface names (Re: changes in draft-ietf-cbor-network-addresses-05.txt)
Brian E Carpenter <brian.e.carpenter@gmail.com> Tue, 27 July 2021 20:01 UTC
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Subject: Re: [Cbor] Interface names (Re: changes in draft-ietf-cbor-network-addresses-05.txt)
To: Christian Amsüss <christian@amsuess.com>, Carsten Bormann <cabo@tzi.org>
Cc: Erik Kline <ek.ietf@gmail.com>, cbor@ietf.org, 6MAN <6man@ietf.org>, core@ietf.org
References: <162608928922.11086.12172415971165753394@ietfa.amsl.com> <29067.1626090045@localhost> <CAMGpriUnfMjhk7teAN-A0j5SCK=BpyJEDC+NOCJtHzmF1BFeow@mail.gmail.com> <BF4E8691-CC71-43D2-8F56-C9567B7BFDD6@tzi.org> <YP/X+VBkFIBypvpB@hephaistos.amsuess.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Message-ID: <fbfabab3-c7e5-c8e5-1dca-002dee1015ed@gmail.com>
Date: Wed, 28 Jul 2021 08:01:41 +1200
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On 27-Jul-21 21:55, Christian Amsüss wrote: > Hello Carsten, groups, > >> Interface names are local, so it doesn’t make a lot of sense to carry >> them around between systems, which is where CBOR is mostly used these >> days. > > two applications come to mind: > > * RD introspection[1] uses zone identifiers in what may be described as > debug output: Usually an RD won't show you a resource on a fe80:: > address not on your link, but as an administrator you may need the > birds-eye view. Yes, that is an operational use case, as also considered in RFC6874(bis) > * Many network devices offer a remote way to run a ping; when the > process is started via CBOR, it'd be useful to give an interface > identifier. How does host A know the Zone IDs (interface names) used on host B? (Answer: only if B has previously told A. So the use case is quite complex.) > I'm not particularly advocating that we add zone identifiers to the new > tags (as I can use URIs or even work around completely in the former, > and don't have a pressing need for the latter) -- but with those > examples, a statement like "we don't specify interface identifiers > because they shouldn't be serialized anyway" would be overreaching. They shouldn't be on the wire except in rather special use cases. Brian > > BR > c > > [1]: https://www.ietf.org/archive/id/draft-amsuess-core-resource-directory-extensions-05.html#name-zone-identifier-introspecti > > > _______________________________________________ > CBOR mailing list > CBOR@ietf.org > https://www.ietf.org/mailman/listinfo/cbor >
- changes in draft-ietf-cbor-network-addresses-05.t… Michael Richardson
- Re: changes in draft-ietf-cbor-network-addresses-… Erik Kline
- Interface names (Re: [Cbor] changes in draft-ietf… Carsten Bormann
- Re: Interface names (Re: [Cbor] changes in draft-… Erik Kline
- Re: changes in draft-ietf-cbor-network-addresses-… Brian E Carpenter
- Re: [Cbor] changes in draft-ietf-cbor-network-add… Carsten Bormann
- Re: changes in draft-ietf-cbor-network-addresses-… Michael Richardson
- Re: [Cbor] changes in draft-ietf-cbor-network-add… Brian E Carpenter
- Re: changes in draft-ietf-cbor-network-addresses-… tom petch
- Re: [Cbor] Interface names (Re: changes in draft-… Christian Amsüss
- Re: [Cbor] Interface names (Re: changes in draft-… Brian E Carpenter
- Re: changes in draft-ietf-cbor-network-addresses-… Brian E Carpenter
- Re: changes in draft-ietf-cbor-network-addresses-… Jürgen Schönwälder
- Re: changes in draft-ietf-cbor-network-addresses-… Brian E Carpenter
- Re: changes in draft-ietf-cbor-network-addresses-… tom petch
- Re: changes in draft-ietf-cbor-network-addresses-… Brian E Carpenter
- Re: changes in draft-ietf-cbor-network-addresses-… Jürgen Schönwälder
- Re: [Cbor] changes in draft-ietf-cbor-network-add… Michael Richardson
- Re: [Cbor] changes in draft-ietf-cbor-network-add… Michael Richardson
- Re: changes in draft-ietf-cbor-network-addresses-… Brian E Carpenter
- Re: [Cbor] changes in draft-ietf-cbor-network-add… Carsten Bormann
- Re: [Cbor] changes in draft-ietf-cbor-network-add… Michael Richardson
- Re: [Cbor] changes in draft-ietf-cbor-network-add… Michael Richardson
- Re: [Cbor] changes in draft-ietf-cbor-network-add… Brian E Carpenter
- Re: [Cbor] changes in draft-ietf-cbor-network-add… Brian E Carpenter
- Re: [Cbor] changes in draft-ietf-cbor-network-add… Carsten Bormann
- Re: changes in draft-ietf-cbor-network-addresses-… Jürgen Schönwälder
- Re: changes in draft-ietf-cbor-network-addresses-… Brian E Carpenter
- RE: changes in draft-ietf-cbor-network-addresses-… Dave Thaler
- Re: changes in draft-ietf-cbor-network-addresses-… Jürgen Schönwälder
- Re: changes in draft-ietf-cbor-network-addresses-… Brian E Carpenter
- Re: changes in draft-ietf-cbor-network-addresses-… Erik Kline