Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt> (IP Version 6 Addressing Architecture) to Internet Standard
Job Snijders <job@ntt.net> Tue, 21 February 2017 22:59 UTC
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Date: Tue, 21 Feb 2017 23:58:57 +0100
From: Job Snijders <job@ntt.net>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
Subject: Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt> (IP Version 6 Addressing Architecture) to Internet Standard
Message-ID: <20170221225857.GE32367@Vurt.local>
References: <d9dc153a-61a8-5976-7697-ce1ecc9c8f3f@gmail.com> <4AF83EE6-6109-491F-BE66-114724BB197B@employees.org> <75196cfa-5476-0c7b-7612-ea2e446fc6f1@gmail.com> <B4A4FFFD-A90D-4C26-BDBD-75555840CA22@employees.org> <m2wpcqeuot.wl-randy@psg.com> <44F7BEDA-CF11-4E1E-BA6F-88794DEC1AF7@employees.org> <20170221001940.GB84656@Vurt.local> <068ce975-8b1e-a7c5-abba-2bfc1d904d70@gmail.com> <20170221101339.GC84656@Vurt.local> <047994c3-9cce-12ce-55bb-bf3ae3369b57@gmail.com>
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Cc: 6man WG <ipv6@ietf.org>, draft-ietf-6man-rfc4291bis@ietf.org, IETF-Discussion Discussion <ietf@ietf.org>, 6man-chairs@ietf.org
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On Wed, Feb 22, 2017 at 11:44:42AM +1300, Brian E Carpenter wrote: > On 21/02/2017 23:13, Job Snijders wrote: > > On Tue, Feb 21, 2017 at 02:11:15PM +1300, Brian E Carpenter wrote: > >> On 21/02/2017 13:19, Job Snijders wrote: > >>> On Thu, Feb 16, 2017 at 09:40:01AM +0100, otroan@employees.org wrote: > >>>> There are many reasons for the 64 bit boundary. > >>>> - Allowing identifier locator split: 8+8 / GSE that led to ILNP and NPT66 > >>> > >>> Irrelevant. > >> > >> Not really. They are both running code. You may not want them in > >> *your* network but that isn't the point. Some people want them. > >> > >> And there is a lot of other running code too, not just SLAAC which is > >> mandatory to implement in every IPv6 host. So this actually trumps all > >> the other arguments: it's 64 bits because it's 64 bits. > > > > When someone utters the phrase "it is X because it is X", the rhetorical > > imperative seems to be to dismiss further conversation (perhaps any > > internal dialogue as well, which may be the primary purpose). "It is > > what it is" therefore, there’s nothing more to be said about it... > > > > Except when it's not 64 bits? > > That wasn't quite my intention. I just wanted to underline that > (like it or not) it was set at 64 bits many years ago and a lot > has been built on that. > > ... > > I've looked at all configured IPv6 addresses on AS 2914 equipment. > > Interestingly enough, the below table is a reflection of not only NTT's > > own addressing, and (since AS2914's core function is to connect networks > > to each other) also of its peers and customers. In the end, whatever > > makes the thing work is the thing that will be configured. > > > > /127 - 22% > > /126 - 52% > > /125 - 0,9% > > /124 - 0,5% > > /120 - 0,04% > > /112 - 0,02% > > /64 - 23% > > Thanks, that's interesting. So 23% of the devices might have > RFC4291-compliant IIDs. The others are configured with 128 bit > IPv6 addresses. Is that correct? The percentage is not the percentage of devices, but the percentage of interconnections. In all instances the addresses are staticly configured. Back to my example from earlier, to make sure we are on the same page, this is output from a standard Linux machine: job@tardis:~$ sudo ip -6 addr add 2001:728:1808:1::21/126 dev eth1 job@tardis:~$ sudo ip -6 addr show dev eth1 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 inet6 2001:728:1808:1::21/126 scope global valid_lft forever preferred_lft forever inet6 fe80::20d:b9ff:fe41:d4f5/64 scope link valid_lft forever preferred_lft forever job@tardis:~$ Most network engineers would call the above example "configuring a /126 on an interface" - but am I understanding correctly that in your taxonomy you would call this "configuring a 128 bit IPv6 address"? > That being so, perhaps the words that are missing are > "The IID length requirement does not apply to interfaces that > are explicitly configured with 128 bit addresses." Because the > requirement is meaningless for such interfaces. The terminology might confuse some people, as in common language when one configures "a /128", or 'a 128 bit address', it usually means you are configuring something like a loopback address. Perhaps: "The IID length requirement does not apply to interfaces that are explicitly configured without autoconfiguration." (perhaps even remove the word 'explicitly') "The IID length requirement does not apply to interfaces that are configured without autoconfiguration." Kind regards, Job
- Last Call: <draft-ietf-6man-rfc4291bis-07.txt> (I… The IESG
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Fernando Gont
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Brian E Carpenter
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Fred Baker
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… JORDI PALET MARTINEZ
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… JORDI PALET MARTINEZ
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Karsten Thomann
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… otroan
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Brian E Carpenter
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Brian E Carpenter
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… otroan
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… sthaug
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Brian E Carpenter
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… otroan
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Brian E Carpenter
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- AW: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Karsten Thomann
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… sthaug
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… otroan
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… otroan
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… otroan
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Mark Smith
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- RE: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Manfredi, Albert E
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… james woodyatt
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Mark Smith
- RE: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Manfredi, Albert E
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Fred Baker
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… otroan
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… james woodyatt
- RE: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Manfredi, Albert E
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… otroan
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… james woodyatt
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Sander Steffann
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Sander Steffann
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Sander Steffann
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Sander Steffann
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Fred Baker
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Brian E Carpenter
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Karsten Thomann
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Mark Smith
- RE: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Manfredi, Albert E
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Mark Smith
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Christopher Morrow
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Brian E Carpenter
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Christopher Morrow
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Brian E Carpenter
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Christopher Morrow
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Christopher Morrow
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Mark Andrews
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Mark Smith
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- RE: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Manfredi, Albert E
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Brian E Carpenter
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Brian E Carpenter
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Fernando Gont
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Randy Bush
- RE: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Manfredi, Albert E
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Erik Kline
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Fernando Gont
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Erik Kline
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… sthaug
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Fernando Gont
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Fernando Gont
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… sthaug
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Fernando Gont
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Philip Homburg
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Pierre Pfister
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Wilco Baan Hofman
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Job Snijders
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Christopher Morrow
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… 神明達哉
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Christopher Morrow
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Mark Andrews
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Jared Mauch
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Jared Mauch
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Fernando Gont
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Pierre Pfister
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… David Farmer
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Mikael Abrahamsson
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Peter Hessler
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Nick Hilliard
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Fernando Gont
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… 神明達哉
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… 神明達哉
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Xing Li
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Xing Li
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Xing Li
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Lorenzo Colitti
- Re: Last Call: <draft-ietf-6man-rfc4291bis-07.txt… Alexandre Petrescu