I do not believe the community has an agreed definition of identifier or
locator. We do have some relatively common usage for locator. As far
as I know there is no fully acurate and written down definition even for
that.
Note also that while Dino likes LISP for lots of things (for good
reason), the LISP working group has been working to move the LISP RFCs
to Proposed Standard with descriptions of usage that are for particular
use case (not limited domains, but specific uses). While originally
developed to address Internet-Wide scaling problems, that is NOT what
the PS documents cover.
Yours,
Joel
On 3/4/2022 6:39 AM, Toerless Eckert wrote:
On Thu, Mar 03, 2022 at 09:28:23AM -0800, Dino Farinacci wrote:
of its address structure helps the underlay to locate the entity (xTR) that the
address is assigned to (xTR). So the name 'locator' is 'just' a good
name for what LISP calls/uses the address for, not for how the under
itself would maybe call the address or use the address for.
Well the locator you put in an outer header destination address is
called/used/assign to whatever the rules of the underlay are. If the underlay
is ethernet, then its a 6-byte address where the high-order 3 bytes is an
organizational ID, just to cite an example.
Indeed.
I have not seen an answer to the question i posed earlier in the thread:
whether and if so what general (not technology specific) definition of locator
and identifier the IETF may have. But i have seen a lot of confusion about
it and people shying away from using these terms.
If (as i think) we do not have a commonly applicable definition of
locator/identifier
(beyond its use in indivdual technologies like LISP), then i think this is
because
folks who tried to apply these terms (incorrectly) may have failed to
see the difference between what an address is and what someone (like an
application) calls it (/uses it for). In that respect the reference to
the White Knight in IEN19 is very helpful to remember.
Cheers
Toerless
Dino
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