Re: [saad] About saad
"James Kempf" <kempf@docomolabs-usa.com> Thu, 16 October 2003 15:31 UTC
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Message-ID: <003201c393f9$008398f0$396015ac@dclkempt40>
From: James Kempf <kempf@docomolabs-usa.com>
To: Michel Py <michel@arneill-py.sacramento.ca.us>, Geoff Huston <gih@telstra.net>, saad@ietf.org
References: <DD7FE473A8C3C245ADA2A2FE1709D90B06C64F@server2003.arneill-py.sacramento.ca.us>
Subject: Re: [saad] About saad
Date: Thu, 16 Oct 2003 08:20:14 -0700
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IPv4 still has the node identifier v.s. routing locater conflation problem for addresses, however. jak ----- Original Message ----- From: "Michel Py" <michel@arneill-py.sacramento.ca.us> To: "Geoff Huston" <gih@telstra.net>; <saad@ietf.org> Sent: Wednesday, October 15, 2003 6:05 PM Subject: RE: [saad] About saad > Marcelo / Geoff, > > > marcelo bagnulo wrote: > > I don't think that the discussion should be focused on IPv6 > > only a priori. > > > Geoff Huston wrote: > > For me this area of consideration is somewhat orthogonal to > > the V4 / V6 considerations. > > That's fine by me, but then we do have some work with the about text: > > > We have specified an Internet that works, at the network > > layer, using relatively stable but not permanent identifiers > > for connection endpoints, which are allocated and > > administered using a topology dependent model, implying a > > service provider dependent model > > For IPv4 this is untrue, as PI addresses are not allocated using a > topology dependent model and do not imply a server provider dependant > model. > > > > But we run into problems (the architecture doesn't quite > > fit when we try to address some scenarios encountered in > > real life: multihoming > > Untrue for IPv4. The issue with IPv4 multihoming is a scalability issue: > the growth of the routing table (resulting in part from the announcement > of multihomed blocks) induces instability, which is not good. Possibly, > a protocol other than BGP4+ would have a lot less of a scalability > issue, so I don't consider this an architecture issue. > > > > assembling a local network without necessarily having to contact > > an ISP to obtain address space(e.g.,home net) > > Not a problem with IPv4: we have RFC1918. > > > > Some proposed solutions are challenged in terms of: > > providing referential integrity - how is referential > > integrity maintained when identifiers are not globally > > unique or are overloaded? > > The answer to this is simple: either make the identifiers globally > unique, or manage that ambiguous identifiers never collide (or make the > collision risk extremely slow). > > > > choosing between different identifiers for an object > ^^^^^^^^^^^ > > which has different "reachability" and the reachability > > is context-dependent > > Shouldn't "identifiers" above be "locators"? I vaguely assume that an > object can have multiple locators but should have only one identifier. > > Michel. > > > _______________________________________________ > Saad mailing list > Saad@ietf.org > https://www1.ietf.org/mailman/listinfo/saad > > _______________________________________________ Saad mailing list Saad@ietf.org https://www1.ietf.org/mailman/listinfo/saad
- Re: [saad] About saad Geoff Huston
- RE: [saad] About saad Michel Py
- Re: [saad] About saad James Kempf
- [saad] About saad Michel Py
- RE: [saad] About saad marcelo bagnulo
- RE: [saad] About saad Michel Py
- RE: [saad] About saad J. Noel Chiappa
- Re: [saad] About saad James Kempf
- RE: [saad] About saad Michel Py
- Re: [saad] About saad Fred Baker
- Re: [saad] About saad Brian E Carpenter
- Re: [saad] About saad James Kempf
- RE: [saad] About saad Michel Py
- Why Scopes? (was: Re: [saad] About saad) James Kempf
- Re: [saad] About saad Fred Baker
- Re: Why Scopes? (was: Re: [saad] About saad) Melinda Shore
- Re: [saad] About saad Dave Crocker
- Re: [saad] About saad James Kempf
- Re: [saad] About saad Dave Crocker
- Re: Why Scopes? (was: Re: [saad] About saad) James Kempf
- RE: [saad] About saad Michel Py
- Re: Why Scopes? (was: Re: [saad] About saad) Melinda Shore
- Re: [saad] About saad Stephane Bortzmeyer
- Re: [saad] About saad Erik Nordmark
- Re: [saad] About saad Brian E Carpenter