Re: [lisp] [ipdir] LISP WG
"Templin, Fred L" <Fred.L.Templin@boeing.com> Fri, 13 March 2009 18:00 UTC
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Date: Fri, 13 Mar 2009 11:00:24 -0700
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Thread-Topic: [lisp] [ipdir] LISP WG
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From: "Templin, Fred L" <Fred.L.Templin@boeing.com>
To: Noel Chiappa <jnc@mercury.lcs.mit.edu>, lisp@ietf.org
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Subject: Re: [lisp] [ipdir] LISP WG
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Noel, > -----Original Message----- > From: Noel Chiappa [mailto:jnc@mercury.lcs.mit.edu] > Sent: Friday, March 13, 2009 10:36 AM > To: lisp@ietf.org > Cc: jnc@mercury.lcs.mit.edu > Subject: Re: [lisp] [ipdir] LISP WG > > > > From: "Templin, Fred L" <Fred.L.Templin@boeing.com> > > > An EID *does* identify an endpoint's interface, however. Therefore, I > > believe a more accurate expansion of the term is Endpoint *Interface* > > iDentifier (EID). > > When you say "An EID", you mean a LISP EID, right? > > Since there are 'LISP EIDs' and 'Classic EIDs' (sorry, couldn't resist :-), > we need to be careful with use of the term 'EID', lest more confusion reign. > I think I personally will start using the acronym LEID in the future, to be > very explicit. (It's only one more keystrokem, and to me seems well worth the > work to make confusion on this point impossible.) > > After thinking about it briefly, I guess an LEID does _currently_ name an > interface, not a stack - especially in an un-modified host. Agree for an unmodified host. > I say "_currently_" because I can also see a future in which i) the LISP > 'boundary' is the first-hop router everywhere, and the LEID no longer holds > any location semantics, and ii) _some_ hosts have therefore been modified so > that they have only a single IPv4 'address', which explicitly names the stack. > (Remember that in my mind LISP is not just what is in the current documents, > but also a long-term development path of which the current stuff is only step > 1 of about 5 - or more.) IP addresses (of which the LISP EID is an example) name interfaces. If you assign a LISP EID to a loopback interface of an xTR, then in some sense it also names the stack. But, the address still has location semantics of a sort (maybe call it node-local scope) and it only names one of the xTR's stacks, which may in fact have many. Fred fred.l.templin@boeing.com > Although maybe that's not such a good idea... I think you want to be able to > name specific interfaces. Although now that I think about it briefly, it would > be cleaner/more correct to do that in a new 'locator' namespace (step 2 or 3 > of the aforementioned 5 or so). > > Noel > _______________________________________________ > lisp mailing list > lisp@ietf.org > https://www.ietf.org/mailman/listinfo/lisp
- Re: [lisp] [ipdir] LISP WG Margaret Wasserman
- Re: [lisp] [ipdir] LISP WG Templin, Fred L
- Re: [lisp] [ipdir] LISP WG Sam Hartman
- Re: [lisp] [ipdir] LISP WG Noel Chiappa
- Re: [lisp] [ipdir] LISP WG Templin, Fred L
- Re: [lisp] [ipdir] LISP WG Scott Brim
- Re: [lisp] [ipdir] LISP WG Noel Chiappa
- Re: [lisp] [ipdir] LISP WG: Loc/ID separation - n… Robin Whittle