RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt
"Templin, Fred L" <Fred.L.Templin@boeing.com> Wed, 20 September 2017 21:11 UTC
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From: "Templin, Fred L" <Fred.L.Templin@boeing.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>, "Manfredi, Albert E" <albert.e.manfredi@boeing.com>
CC: IPv6 List <ipv6@ietf.org>
Subject: RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt
Thread-Topic: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt
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Date: Wed, 20 Sep 2017 21:11:25 +0000
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Hi Brian, > -----Original Message----- > From: Brian E Carpenter [mailto:brian.e.carpenter@gmail.com] > Sent: Wednesday, September 20, 2017 1:29 PM > To: Manfredi, Albert E <albert.e.manfredi@boeing.com>; Templin, Fred L <Fred.L.Templin@boeing.com> > Cc: IPv6 List <ipv6@ietf.org> > Subject: Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt > > On 21/09/2017 06:42, Manfredi, Albert E wrote: > > -----Original Message----- > > From: ipv6 [mailto:ipv6-bounces@ietf.org] On Behalf Of Templin, Fred L > > > >> I hear you, and I am not suggesting any change in the host and > >> router definitions. However, an end system that acts as both a > >> router and a host has to do something slightly different than > >> an ordinary router would. > > > > This is the typical case for any "dual-homed host," in my experience. An end system connected redundantly, for > reliability/survivability reasons. They are routers, but configured to not forward packets and not announce routes (e.g. using RIP or > OSPF). Very common in some environments, and frequently problematic. > > > >> Whether/not you agree that the term "end system" should be > >> used to describe these, I still see value in importing the > >> weak/strong ES discussion from RFC1122 because the same > >> concepts apply to IPv6. > > Not exactly. We discuss this a bit in RFC 8028, specifically > https://tools.ietf.org/html/rfc8028#section-1.1 , and there > are some subtle differences. I don't mind citing the strong/weak discussion in RFC8028, and I think node requirements would do well to discuss the host model. However: > Personally I would prefer that we don't add dependencies on IPv4 > documents. We might want to make all of those Historic in a few years. I would still like to see node requirements cite RFC1122, if even as just historical. Thanks - Fred > > I think this issue also relates to what an IP address refers to. I'm under the impression that in IPv6, we insist this must be the address > of an interface, rather than a host. In IPv4, it's more ambiguous, which is also problematic (IMO). If we insist that IPv6 addresses > belong to interfaces, then the weak model would not apply to IPv6, no? > > Again, see RFC 8028. > > > > > (This is also similar to MAC addresses, whether they should apply to a host or to an interface. A debate from a previous era.) > > But it doesn't really matter for IPv6. As long as the MAC address is unique > on each link, everything works. > > Brian
- I-D Action: draft-ietf-6man-rfc6434-bis-01.txt internet-drafts
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Brian E Carpenter
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Timothy Winters
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Lorenzo Colitti
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Erik Kline
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Nick Hilliard
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Lorenzo Colitti
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Job Snijders
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Nick Hilliard
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Sander Steffann
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Lorenzo Colitti
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt David Farmer
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Nick Hilliard
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt David Farmer
- RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Morizot Timothy S
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Brian E Carpenter
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Brian E Carpenter
- RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Morizot Timothy S
- RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt STARK, BARBARA H
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Tim Chown
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Tim Chown
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Nick Hilliard
- RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Templin, Fred L
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Tim Chown
- RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Templin, Fred L
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Timothy Winters
- RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Templin, Fred L
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Bob Hinden
- RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Templin, Fred L
- RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Manfredi, Albert E
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Brian E Carpenter
- RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Manfredi, Albert E
- RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Templin, Fred L
- Re: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Lorenzo Colitti
- RE: I-D Action: draft-ietf-6man-rfc6434-bis-01.txt Templin, Fred L