----- Original Message ----- From: "Templin, Fred L" <fred.l.temp...@boeing.com> To: "Noel Chiappa" <j...@mercury.lcs.mit.edu>; <ietf@ietf.org> Sent: Thursday, November 03, 2011 3:54 PM > > -----Original Message----- > > From: Noel Chiappa [mailto:j...@mercury.lcs.mit.edu] > > Sent: Thursday, November 03, 2011 7:43 AM > > To: ietf@ietf.org > > Cc: j...@mercury.lcs.mit.edu > > > > > From: "Templin, Fred L" <fred.l.temp...@boeing.com> > > > > > one to one correspondence with the end system's multiple VPN > > > connections. The internal virtual interfaces keep the > > VPNs separate. > > > > As logically separate sources for incoming/outbound packets, > > they are just > > like multiple real interfaces. The name used for neither is really the > > 'identity' of the host, the names applied to those things > > just identify > > sources/sinks of packets. > > > > >> Suppose I assign two endpoint identifiers to a host. > > Which is the > > >> host's identity? > > > > > Neither - that's the point. The host's identify is not > > bound to any one > > > or multiple IP addresses. > > > > I said "endpoint identifiers" (under whatever definition of > > that term one > > wishes to use), not "addresses". > > OK, so then let's consider a related analogy. It is > not uncommon for a person (e.g., John Doe) to have > dual citizenship with countries A and B, i.e, John > "interfaces" with both countries. John would receive > a separate taxpayer identifier from each of A and B, > which has relevance only within the respective > country's "routing system". But, John's identity is > neither A nor B; John's identity is John.
Not necessarily so. I agree with you so far, but the question is, when John contributes to this list as AD and then as individual, is that one identity or two? Arguably, it is two, each of which could have multiple identifiers. Likewise, a host can be differentiated from the applications running on it, and in a large server farm, the relationship can be m:n, so there is an application identity, with multiple identifiers, which is distinct from a host identity, with multiple identifiers. Identity is a slippery thing and much of the discussion on RRG, which I faithfully followed, seemed to me to be a lack of agreement on identity, not about identifiers. That said, no way is LISP a separation of Locator and ID:-) It seems to me a bit like countries which included 'Democratic' in their identifier, which always make me want to see some proof that they were indeed democratic:-) Tom Petch > > > So, a single host can have multiple identities (whether one > > does so via > > multiple interfaces/interface addresses, or endpoint identifiers). So? > > No; not multiple identities. One identity; multiple > interfaces and multiple addresses. Same as for the > taxpayer ID analogy. > > Thanks - Fred > fred.l.temp...@boeing.com > > > Noel > > > _______________________________________________ > Ietf mailing list > Ietf@ietf.org > https://www.ietf.org/mailman/listinfo/ietf > > _______________________________________________ Ietf mailing list Ietf@ietf.org https://www.ietf.org/mailman/listinfo/ietf
