Re: [Idr] Benoit Claise's Discuss on draft-ietf-idr-large-community-11: (with DISCUSS and COMMENT)
"Jakob Heitz (jheitz)" <jheitz@cisco.com> Wed, 04 January 2017 20:21 UTC
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From: "Jakob Heitz (jheitz)" <jheitz@cisco.com>
To: "John G. Scudder" <jgs@juniper.net>, "Benoit Claise (bclaise)" <bclaise@cisco.com>
Thread-Topic: Benoit Claise's Discuss on draft-ietf-idr-large-community-11: (with DISCUSS and COMMENT)
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Date: Wed, 04 Jan 2017 20:20:47 +0000
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Subject: Re: [Idr] Benoit Claise's Discuss on draft-ietf-idr-large-community-11: (with DISCUSS and COMMENT)
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There is no need to change the text. The attribute is in fact suitable for use with four-octet ASNs. Since all ASNs can be represented in 4 octets, there is no problem. Thanks, Jakob. > -----Original Message----- > From: John G. Scudder [mailto:jgs@juniper.net] > Sent: Wednesday, January 04, 2017 11:51 AM > To: Benoit Claise (bclaise) <bclaise@cisco.com> > Cc: Job Snijders <job@ntt.net>; Ignas Bagdonas <ibagdona.ietf@gmail.com>; The IESG <iesg@ietf.org>; draft-ietf-idr- > large-community@ietf.org; idr-chairs@ietf.org; idr@ietf.org; rick.casarez@gmail.com > Subject: Re: Benoit Claise's Discuss on draft-ietf-idr-large-community-11: (with DISCUSS and COMMENT) > > Benoit, > > I think the wording is accurate as written, but I see your point. I think your suggested wording is terse to a fault > since it abandons the important "this will work with your four-byte ASN" information. IMO a change is not strictly > needed, but if one is desired how about something like this? > > OLD: > The attribute is suitable for use with four-octet > Autonomous System Numbers > > NEW: > The attribute is suitable for use with all Autonomous System Numbers including four-octet > Autonomous System Numbers > > Or a lawyer would probably say :-) > The attribute is suitable for use with, inter alia, four-octet > Autonomous System Numbers > > Regards, > > -John > > > On Jan 4, 2017, at 1:43 PM, Benoit Claise <bclaise@cisco.com> wrote: > > > > Hi Job, > > > > So basically, you're telling me: "The attribute is suitable for use with ASNs.", right? > > Is this what needs to be in the abstract? > > > > Regards, B. > >> Hi Benoit, > >> > >> On Wed, Jan 04, 2017 at 04:39:25PM +0100, Benoit Claise wrote: > >>>> Global Administrator field is a 4 octet integer that is used to carry AS > >>>> number but it is not mandatory to interpret it as an AS number only > >>>> (while a typical use case is for carrying AS number) - two peers can > >>>> agree on any value that has meaning between those peers. Representation > >>>> on the wire is in network byte order, and 2 byte AS number will get > >>>> naturally padded with two zero bytes in front. Virtually all deployments > >>>> today are AS4 capable and use AS4 encoding even for AS number values > >>>> that fit into 16 bit value range therefore AS number is a 4 octet entity > >>>> already. > >>> Then this sentence in the abstract "The attribute is suitable for use > >>> with four-octet ASNs." is misleading, right? At least to me. The > >>> attribute is suitable for four-octets ASNs and two-octets ASNs encoded > >>> in four-octets. This would be more in line with "This field SHOULD be > >>> an Autonomous System Number (ASN)" later on. > >> I am under the impression that nowadays the IETF community considers all > >> ASNs to be four-octet ASNs, however, some of those ASNs can be encoded > >> as a two octet value. The Large Communities specification is suitable > >> for usage in Autonomous Systems from all walks of life, where as rfc1997 > >> communities are unsuitable for all ASNs, specifically those ASNs which > >> cannot be encoded as two-octet values. > >> > >> Kind regards, > >> > >> Job > >> . > >> > >
- [Idr] Benoit Claise's Discuss on draft-ietf-idr-l… Benoit Claise
- Re: [Idr] Benoit Claise's Discuss on draft-ietf-i… heasley
- Re: [Idr] Benoit Claise's Discuss on draft-ietf-i… Ignas Bagdonas
- Re: [Idr] Benoit Claise's Discuss on draft-ietf-i… Nick Hilliard
- Re: [Idr] Benoit Claise's Discuss on draft-ietf-i… Benoit Claise
- Re: [Idr] Benoit Claise's Discuss on draft-ietf-i… heasley
- Re: [Idr] Benoit Claise's Discuss on draft-ietf-i… Job Snijders
- Re: [Idr] Benoit Claise's Discuss on draft-ietf-i… Benoit Claise
- Re: [Idr] Benoit Claise's Discuss on draft-ietf-i… Job Snijders
- Re: [Idr] Benoit Claise's Discuss on draft-ietf-i… John G. Scudder
- Re: [Idr] Benoit Claise's Discuss on draft-ietf-i… Jakob Heitz (jheitz)
- Re: [Idr] Benoit Claise's Discuss on draft-ietf-i… Benoit Claise