RE: [atn] [EXTERNAL] Embedding IP information in an IPv6 address (OMNI)

"Templin (US), Fred L" <Fred.L.Templin@boeing.com> Sat, 17 October 2020 17:00 UTC

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From: "Templin (US), Fred L" <Fred.L.Templin@boeing.com>
To: Bob Hinden <bob.hinden@gmail.com>
CC: "Manfredi (US), Albert E" <albert.e.manfredi@boeing.com>, IPv6 List <ipv6@ietf.org>, Ole Trøan <otroan@employees.org>, "atn@ietf.org" <atn@ietf.org>
Subject: RE: [atn] [EXTERNAL] Embedding IP information in an IPv6 address (OMNI)
Thread-Topic: [atn] [EXTERNAL] Embedding IP information in an IPv6 address (OMNI)
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Date: Sat, 17 Oct 2020 17:00:43 +0000
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Hi Bob,

> -----Original Message-----
> From: Bob Hinden [mailto:bob.hinden@gmail.com]
> Sent: Saturday, October 17, 2020 9:47 AM
> To: Templin (US), Fred L <Fred.L.Templin@boeing.com>
> Cc: Bob Hinden <bob.hinden@gmail.com>; Manfredi (US), Albert E <albert.e.manfredi@boeing.com>; IPv6 List <ipv6@ietf.org>; Ole
> Trøan <otroan@employees.org>; atn@ietf.org
> Subject: Re: [atn] [EXTERNAL] Embedding IP information in an IPv6 address (OMNI)
> 
> Fred,
> 
> > On Oct 17, 2020, at 9:01 AM, Templin (US), Fred L <Fred.L.Templin@boeing.com> wrote:
> >
> > Bob, it looks like our notes crossed at approximately the same time, but I would say
> > the same thing to you that I just said to Bert - we will want all four of LLAs (for the
> > control plane), SLAs (for the OAL) and ULAs/GUAs (for end-system addressing).
> 
> I think we are saying you are asking for too much.

The ask is to bring SLAs off mothballs and back into service - it would be a good use
of an otherwise wasted space. 

> > About your scale calculations, there will be far more terrestrial vehicles, urban
> > air mobility vehicles, drones, pedestrians etc. than there are the number of
> > aircraft currently worldwide. But, scale is just one dimension of the problem
> > space and the more important dimension is *function*.
> 
> Where is the problem statement for this?

https://datatracker.ietf.org/doc/draft-ietf-ipwave-vehicular-networking/

> This is far beyond what was I understood was called for in the OMNI liaison letter
> (https://datatracker.ietf.org/liaison/1676/ ) that we thought the OMNI draft was focused on.  The liaison letter talks about aircraft, not
> vehicles, drones, pedestrians, etc.
> 
> I read what you are saying is a mobility solution for everything.

What we have been designing for the aircraft domain appears to be a good fit
for other mobility domains as well, with the above draft as evidence. I believe
we can satisfy the aircraft in the near term while still allowing for more
general-purpose mobility applicability.

Thanks - Fred

> Bob
> 
> 
> >
> > Thanks - Fred
> >
> >> -----Original Message-----
> >> From: atn [mailto:atn-bounces@ietf.org] On Behalf Of Bob Hinden
> >> Sent: Saturday, October 17, 2020 8:52 AM
> >> To: Manfredi (US), Albert E <albert.e.manfredi@boeing.com>
> >> Cc: IPv6 List <ipv6@ietf.org>; Ole Trøan <otroan@employees.org>; Bob Hinden <bob.hinden@gmail.com>; atn@ietf.org
> >> Subject: Re: [atn] [EXTERNAL] Embedding IP information in an IPv6 address (OMNI)
> >>
> >> Bert,
> >>
> >>> On Oct 16, 2020, at 2:47 PM, Manfredi (US), Albert E <albert.e.manfredi@boeing.com> wrote:
> >>>
> >>> From: ipv6 <ipv6-bounces@ietf.org> On Behalf Of Ole Troan
> >>>
> >>>> I would challenge you to make OMNI entirely free from semantic addresses. That would also help the working group understand
> >> what benefits semantic addresses bring to OMNI. And what the tradeoffs would be.
> >>>
> >>> I think it's a matter of speed and simplicity, no? You avoid that extra protocol, to assign addresses. Same idea as embedding the
> MAC
> >> into the IPv6 address. But it's true that the IETF likes to stay away from semantic addresses.
> >>>
> >>> The path of least resistance, from all the back and forth, as of now, seems to be to either use ULAs, or to request a new /10 for
> this
> >> new purpose.
> >>
> >> I did some searching, found that there are currently about 500K aircraft of all types (general aviation, commercial, military, etc.).
> >> Allocating a /10 seems excessive to me for this even with a lot of growth.
> >>
> >> Using ULAs would be fine.   This might even be a good justification to use the other half of the ULA space as I suspect the ICAO
> could
> >> be an allocation authority.
> >>
> >> Bob
> >>
> >>
> >