William Herrin wrote: >>> Some local system is responsible for detecting connectivity between >>> the ETR and destination and updating the destination-to-ETR map >>> accordingly. >> >> Some local system? > > Yeah, you know, like OSPF or EIGRP. Just like exporting a route from > the IGP to the EGP except that you're exporting a route from the IGP > to the LISP map instead.
You assume an end user's network exchange route with its ISP. Though it causes a lot of problems, OK. Even then, that a route from an ETR of an ISP to an end system in end user's network is blackholed means that a routing protocol tells the ETR that there is a route to the end system. Masataka Ohta