Locator ID Separation Protocol (LISP) is a network architecture and protocol that implements the use of two namespaces instead of a single IP address: + Endpoint identifiers (EIDs)-assigned to end hosts. + Routing locators (RLOCs)-assigned to devices (primarily routers) that make up the global routing system. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_lisp/configuration/xe-3s/irl-xe-3s- book/irl-overview.html