In a traditional routing architecture, the endpoints IP address represents it’s identity and location.
If the location of the endpoint changes, it’s IP address also changes.
LISP separates the IP address into endpoint identifiers (an EID) and routing locators (RLOC).
Endpoints are able to roam from site to site, and the only thing that will change is their routing locator (RLOC), the endpoint identifier (EID) remains the same.
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