Re: [Cbor] Supporting IPv6 Link-Local with scope (was Re: Éric Vyncke's Discuss on draft-ietf-cbor-network-addresses-09: (with DISCUSS and COMMENT))
"Rob Wilton (rwilton)" <rwilton@cisco.com> Thu, 07 October 2021 10:01 UTC
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From: "Rob Wilton (rwilton)" <rwilton@cisco.com>
To: Michael Richardson <mcr+ietf@sandelman.ca>, "Eric Vyncke (evyncke)" <evyncke@cisco.com>, "cbor@ietf.org" <cbor@ietf.org>, "draft-ietf-cbor-network-addresses@ietf.org" <draft-ietf-cbor-network-addresses@ietf.org>, The IESG <iesg@ietf.org>, "d3e3e3@gmail.com" <d3e3e3@gmail.com>, "barryleiba@computer.org" <barryleiba@computer.org>, "cbor-chairs@ietf.org" <cbor-chairs@ietf.org>, Brian E Carpenter <brian.e.carpenter@gmail.com>
Thread-Topic: Re: [Cbor] Supporting IPv6 Link-Local with scope (was Re: Éric Vyncke's Discuss on draft-ietf-cbor-network-addresses-09: (with DISCUSS and COMMENT))
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Date: Thu, 07 Oct 2021 10:00:15 +0000
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Subject: Re: [Cbor] Supporting IPv6 Link-Local with scope (was Re: Éric Vyncke's Discuss on draft-ietf-cbor-network-addresses-09: (with DISCUSS and COMMENT))
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Hi Michael, A couple of comments on -10 In section 2: - It still references a two element array for IP address and prefix, but presumably it is a 2 or 3 element array. - How often are zones actually used? Would it not just be simpler to always use a string interface identifier? - Is "false" for a prefix length a better choice than using either -1 or null? I still think the example in section 4 probably needs fixing: 52([44, h'20010db81230']) ^- Should this be 54 rather than 52? even though variations like: 54([44, h'20010db81233']) 54([45, h'20010db8123f']) ^- Should this be 44 rather than 45? Because otherwise it looks like it would parse to a different prefix. Thanks, Rob -----Original Message----- From: iesg <iesg-bounces@ietf.org> On Behalf Of Michael Richardson Sent: 06 October 2021 17:19 To: Eric Vyncke (evyncke) <evyncke@cisco.com>; cbor@ietf.org; draft-ietf-cbor-network-addresses@ietf.org; The IESG <iesg@ietf.org>; d3e3e3@gmail.com; barryleiba@computer.org; cbor-chairs@ietf.org; Brian E Carpenter <brian.e.carpenter@gmail.com> Subject: Re: Re: [Cbor] Supporting IPv6 Link-Local with scope (was Re: Éric Vyncke's Discuss on draft-ietf-cbor-network-addresses-09: (with DISCUSS and COMMENT)) Hi, at the CBOR WG meeting this morning, support for IPv6 LL scopes was the major topic. We added an optional third parameter to the interface definition, and made it valid to specify the interface prefix length as "false" I hope that I got the CDDL right: https://github.com/cbor-wg/cbor-network-address/blob/main/cbor-network-addresses.mkd#cddl Examples: https://github.com/cbor-wg/cbor-network-address/blob/main/cbor-network-addresses.mkd#ipv6 We also agreed to lowercase all HEX, and to leave Ethernet tags for Donald's rfc7042bis. (despite that being informational and a possible downref issue) We agreed that Invalid CBOR is... invalid CBOR, and that the CDDL gives the details for the limits. I have posted a revision -10, which I hope satisfies all of the DISCUSS and comments: https://www.ietf.org/rfcdiff?url1=draft-ietf-cbor-network-addresses-09&url2=draft-ietf-cbor-network-addresses-10 -- Michael Richardson <mcr+IETF@sandelman.ca> . o O ( IPv6 IøT consulting ) Sandelman Software Works Inc, Ottawa and Worldwide
- [Cbor] Éric Vyncke's Discuss on draft-ietf-cbor-n… Éric Vyncke via Datatracker
- [Cbor] Deprecating tags and Ethernet address in d… Michael Richardson
- Re: [Cbor] Éric Vyncke's Discuss on draft-ietf-cb… Michael Richardson
- [Cbor] Supporting IPv6 Link-Local with scope (was… Michael Richardson
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Eric Vyncke (evyncke)
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Carsten Bormann
- Re: [Cbor] Deprecating tags and Ethernet address … Donald Eastlake
- Re: [Cbor] Deprecating tags and Ethernet address … Erik Kline
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Erik Kline
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Brian E Carpenter
- Re: [Cbor] Deprecating tags and Ethernet address … Donald Eastlake
- Re: [Cbor] Deprecating tags and Ethernet address … Michael Richardson
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Thiago Macieira
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Michael Richardson
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Brian E Carpenter
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Carsten Bormann
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Michael Richardson
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Michael Richardson
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Brian E Carpenter
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Carsten Bormann
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Carsten Bormann
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Brian E Carpenter
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Jürgen Schönwälder
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Carsten Bormann
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Rob Wilton (rwilton)
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Carsten Bormann
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Jürgen Schönwälder
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Rob Wilton (rwilton)
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Carsten Bormann
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Carsten Bormann
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Erik Kline
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Barry Leiba
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Michael Richardson
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Thiago Macieira
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Brian E Carpenter
- Re: [Cbor] Supporting IPv6 Link-Local with scope … Brian E Carpenter