An EID address is not an Identifier and an RLOC

It is an identifier. It is used by the TCP and UDP socket layer. Just because an EID is also a scoped locator inside of a site, does not preclude it from being an identifier.

                address is not a Locator.  Both kinds of address
                are like any IP address - they play the roles of
                both Identifier and Locator.  ITRs use a different
                algorithm for EID destination addresses.  All
                other routers and all hosts make no distinction
                between EID and RLOC addresses.

LISP does separate ID and locator because you can keep an EID fixed with a system, maintaining session continuity, while changing the locator associated with the EID.


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